/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=LOWLEXORDER --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product60.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 21:28:48,651 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 21:28:48,654 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 21:28:48,680 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 21:28:48,680 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 21:28:48,682 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 21:28:48,683 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 21:28:48,685 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 21:28:48,686 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 21:28:48,687 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 21:28:48,688 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 21:28:48,689 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 21:28:48,689 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 21:28:48,691 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 21:28:48,692 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 21:28:48,693 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 21:28:48,694 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 21:28:48,695 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 21:28:48,697 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 21:28:48,699 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 21:28:48,700 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 21:28:48,701 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 21:28:48,703 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 21:28:48,704 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 21:28:48,706 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 21:28:48,706 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 21:28:48,707 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 21:28:48,708 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 21:28:48,708 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 21:28:48,709 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 21:28:48,709 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 21:28:48,710 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 21:28:48,711 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 21:28:48,712 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 21:28:48,713 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 21:28:48,713 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 21:28:48,714 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 21:28:48,714 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 21:28:48,714 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 21:28:48,715 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 21:28:48,716 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 21:28:48,717 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 21:28:48,748 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 21:28:48,752 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 21:28:48,753 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 21:28:48,753 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 21:28:48,754 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 21:28:48,754 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 21:28:48,754 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 21:28:48,754 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 21:28:48,754 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 21:28:48,757 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 21:28:48,757 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 21:28:48,757 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 21:28:48,757 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 21:28:48,758 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 21:28:48,758 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 21:28:48,758 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 21:28:48,758 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 21:28:48,758 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 21:28:48,759 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 21:28:48,762 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 21:28:48,762 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 21:28:48,762 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:28:48,763 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 21:28:48,763 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 21:28:48,763 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 21:28:48,763 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 21:28:48,763 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 21:28:48,764 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 21:28:48,764 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 21:28:48,764 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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;log-additional-information=true; [2020-09-24 21:28:49,291 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 21:28:49,317 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 21:28:49,324 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 21:28:49,326 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 21:28:49,328 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 21:28:49,329 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product60.cil.c [2020-09-24 21:28:49,413 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ccfdf64cd/312efaab1083479aaafbeb73d497bad1/FLAG543c8da13 [2020-09-24 21:28:49,992 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 21:28:49,993 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product60.cil.c [2020-09-24 21:28:50,010 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ccfdf64cd/312efaab1083479aaafbeb73d497bad1/FLAG543c8da13 [2020-09-24 21:28:50,253 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ccfdf64cd/312efaab1083479aaafbeb73d497bad1 [2020-09-24 21:28:50,267 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 21:28:50,274 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 21:28:50,275 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 21:28:50,275 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 21:28:50,280 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 21:28:50,281 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:28:50" (1/1) ... [2020-09-24 21:28:50,287 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bbc2ce6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:28:50, skipping insertion in model container [2020-09-24 21:28:50,287 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:28:50" (1/1) ... [2020-09-24 21:28:50,298 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 21:28:50,354 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 21:28:50,871 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:28:50,887 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 21:28:51,034 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:28:51,081 INFO L208 MainTranslator]: Completed translation [2020-09-24 21:28:51,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:28:51 WrapperNode [2020-09-24 21:28:51,082 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 21:28:51,082 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 21:28:51,083 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 21:28:51,083 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 21:28:51,098 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:28:51" (1/1) ... [2020-09-24 21:28:51,099 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:28:51" (1/1) ... [2020-09-24 21:28:51,120 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:28:51" (1/1) ... [2020-09-24 21:28:51,121 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:28:51" (1/1) ... [2020-09-24 21:28:51,168 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:28:51" (1/1) ... [2020-09-24 21:28:51,185 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:28:51" (1/1) ... [2020-09-24 21:28:51,191 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:28:51" (1/1) ... [2020-09-24 21:28:51,199 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 21:28:51,199 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 21:28:51,199 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 21:28:51,200 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 21:28:51,201 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:28:51" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:28:51,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 21:28:51,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 21:28:51,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 21:28:51,291 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 21:28:51,291 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 21:28:51,292 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 21:28:51,292 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 21:28:51,292 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 21:28:51,293 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 21:28:51,293 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 21:28:51,294 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 21:28:51,294 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 21:28:51,294 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 21:28:51,294 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 21:28:51,294 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 21:28:51,295 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 21:28:51,295 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 21:28:51,295 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 21:28:51,295 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-24 21:28:51,296 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-24 21:28:51,296 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-24 21:28:51,296 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 21:28:51,296 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 21:28:51,297 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 21:28:51,297 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 21:28:51,298 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 21:28:51,299 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 21:28:51,299 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 21:28:51,299 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 21:28:51,299 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 21:28:51,299 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 21:28:51,300 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 21:28:51,300 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 21:28:51,300 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 21:28:51,300 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 21:28:51,301 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 21:28:51,301 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 21:28:51,301 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 21:28:51,301 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 21:28:51,301 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 21:28:51,302 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 21:28:51,303 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 21:28:51,303 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 21:28:51,303 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 21:28:51,303 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 21:28:51,304 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 21:28:51,304 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 21:28:51,304 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 21:28:51,304 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 21:28:51,304 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 21:28:51,305 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 21:28:51,305 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 21:28:51,305 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 21:28:51,305 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 21:28:51,305 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 21:28:51,306 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 21:28:51,306 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 21:28:51,306 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 21:28:51,306 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 21:28:51,306 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 21:28:51,306 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-24 21:28:51,306 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-24 21:28:51,306 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 21:28:51,306 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 21:28:51,306 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 21:28:51,307 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 21:28:51,307 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 21:28:51,307 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 21:28:51,307 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 21:28:51,307 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 21:28:51,308 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 21:28:51,308 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 21:28:51,309 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 21:28:51,309 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 21:28:51,309 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 21:28:51,310 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 21:28:51,310 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-24 21:28:51,310 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 21:28:51,310 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 21:28:51,310 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 21:28:51,310 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 21:28:51,310 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 21:28:51,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 21:28:51,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 21:28:51,311 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 21:28:51,311 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 21:28:51,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 21:28:51,311 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 21:28:51,311 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 21:28:51,311 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 21:28:51,311 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 21:28:51,311 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 21:28:51,311 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 21:28:51,311 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 21:28:51,312 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 21:28:51,312 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 21:28:51,312 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 21:28:51,312 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 21:28:51,312 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 21:28:51,312 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 21:28:51,312 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 21:28:51,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 21:28:51,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 21:28:51,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 21:28:52,475 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 21:28:52,475 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 21:28:52,483 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:28:52 BoogieIcfgContainer [2020-09-24 21:28:52,484 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 21:28:52,485 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 21:28:52,485 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 21:28:52,489 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 21:28:52,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:28:50" (1/3) ... [2020-09-24 21:28:52,490 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2618762f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:28:52, skipping insertion in model container [2020-09-24 21:28:52,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:28:51" (2/3) ... [2020-09-24 21:28:52,491 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2618762f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:28:52, skipping insertion in model container [2020-09-24 21:28:52,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:28:52" (3/3) ... [2020-09-24 21:28:52,494 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product60.cil.c [2020-09-24 21:28:52,507 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 21:28:52,520 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 21:28:52,547 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 21:28:52,580 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 21:28:52,580 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 21:28:52,581 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 21:28:52,581 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 21:28:52,581 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 21:28:52,581 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 21:28:52,581 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 21:28:52,581 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 21:28:52,611 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states. [2020-09-24 21:28:52,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-24 21:28:52,630 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:28:52,631 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:28:52,632 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:28:52,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:28:52,641 INFO L82 PathProgramCache]: Analyzing trace with hash 1647532489, now seen corresponding path program 1 times [2020-09-24 21:28:52,654 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:28:52,654 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1908601915] [2020-09-24 21:28:52,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:28:52,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:53,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:53,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:54,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:55,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:58,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:58,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-24 21:28:58,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 21:28:58,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5054 [2020-09-24 21:28:58,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:58,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 21:28:58,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-24 21:28:58,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-09-24 21:28:58,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-24 21:28:58,789 WARN L193 SmtUtils]: Spent 474.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:28:58,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:28:58,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:58,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:59,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:59,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 21:28:59,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:59,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 463 [2020-09-24 21:28:59,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:59,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:28:59,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:59,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-24 21:28:59,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 21:28:59,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 21:28:59,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:59,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:59,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:59,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:28:59,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:59,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:28:59,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:59,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:28:59,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:59,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:28:59,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:28:59,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 21:28:59,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:59,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:59,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:59,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:28:59,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:59,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:28:59,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:59,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:28:59,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:59,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:28:59,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 21:28:59,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 21:28:59,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:59,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:59,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:59,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:28:59,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:59,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 21:28:59,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:59,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:28:59,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:59,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:28:59,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:28:59,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 21:28:59,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:59,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:59,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:59,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:28:59,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:59,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:28:59,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:59,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:28:59,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:59,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:28:59,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 21:28:59,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 21:28:59,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:59,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:59,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:59,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:28:59,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:59,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:28:59,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:59,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:28:59,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:59,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:28:59,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:28:59,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 21:28:59,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:59,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:59,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:59,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 21:28:59,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:59,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 21:28:59,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:59,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:28:59,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:59,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 21:28:59,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:28:59,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:28:59,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:59,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:59,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:59,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:28:59,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:59,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:28:59,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:59,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:28:59,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:59,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:28:59,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:28:59,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 21:28:59,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:59,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:59,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:59,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:28:59,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:59,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:28:59,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:59,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:28:59,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:59,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:28:59,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:28:59,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 21:28:59,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:59,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:59,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:59,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:28:59,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:59,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 21:28:59,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:59,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:28:59,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:59,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:28:59,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:28:59,748 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 21:28:59,749 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1908601915] [2020-09-24 21:28:59,752 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:28:59,753 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 21:28:59,754 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824014865] [2020-09-24 21:28:59,823 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 21:28:59,824 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:28:59,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 21:28:59,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 21:28:59,856 INFO L87 Difference]: Start difference. First operand 357 states. Second operand 9 states. [2020-09-24 21:29:00,739 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:29:01,590 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:29:01,914 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:29:03,541 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:29:03,849 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:29:04,246 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:29:04,652 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:29:04,981 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:29:05,299 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:29:06,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:29:06,176 INFO L93 Difference]: Finished difference Result 691 states and 832 transitions. [2020-09-24 21:29:06,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 21:29:06,178 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 160 [2020-09-24 21:29:06,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:29:06,219 INFO L225 Difference]: With dead ends: 691 [2020-09-24 21:29:06,219 INFO L226 Difference]: Without dead ends: 458 [2020-09-24 21:29:06,226 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-24 21:29:06,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2020-09-24 21:29:06,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 407. [2020-09-24 21:29:06,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 407 states. [2020-09-24 21:29:06,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 455 transitions. [2020-09-24 21:29:06,385 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 455 transitions. Word has length 160 [2020-09-24 21:29:06,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:29:06,386 INFO L479 AbstractCegarLoop]: Abstraction has 407 states and 455 transitions. [2020-09-24 21:29:06,386 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 21:29:06,386 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 455 transitions. [2020-09-24 21:29:06,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2020-09-24 21:29:06,392 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:29:06,393 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:29:06,393 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 21:29:06,394 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:29:06,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:29:06,394 INFO L82 PathProgramCache]: Analyzing trace with hash -1125216324, now seen corresponding path program 1 times [2020-09-24 21:29:06,394 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:29:06,395 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [801998400] [2020-09-24 21:29:06,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:29:06,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:06,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:06,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:06,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:07,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:11,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:11,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 320 [2020-09-24 21:29:11,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 21:29:11,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5053 [2020-09-24 21:29:11,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:11,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 21:29:11,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 21:29:11,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-24 21:29:11,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:11,907 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:29:11,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:29:11,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:11,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:12,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:12,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 21:29:12,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:12,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 244 [2020-09-24 21:29:12,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:12,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:29:12,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:12,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 21:29:12,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:12,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 21:29:12,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:12,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:12,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:12,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:29:12,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:12,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:29:12,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:12,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:29:12,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:12,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:29:12,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:12,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 21:29:12,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:12,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:12,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:12,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:29:12,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:12,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:29:12,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:12,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:29:12,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:12,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:29:12,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:29:12,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 21:29:12,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:12,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:12,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:12,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:29:12,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:12,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 21:29:12,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:12,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:29:12,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:12,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:29:12,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:29:12,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 21:29:12,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:12,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:12,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:12,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:29:12,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:12,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:29:12,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:12,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:29:12,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:12,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:29:12,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:29:12,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 21:29:12,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:12,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:12,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:12,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:29:12,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:12,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:29:12,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:12,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:29:12,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:12,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:29:12,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:29:12,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 21:29:12,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:12,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:12,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:12,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-24 21:29:12,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:12,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-24 21:29:12,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:12,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:29:12,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-24 21:29:12,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-24 21:29:12,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:29:12,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:29:12,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:12,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:12,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:12,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 21:29:12,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:12,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:29:12,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:12,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:29:12,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:12,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:29:12,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:29:12,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:29:12,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:12,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:12,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:12,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:29:12,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:12,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:29:12,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:12,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:29:12,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:12,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:29:12,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:29:12,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 21:29:12,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:12,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:12,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:12,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 21:29:12,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:12,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 21:29:12,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:12,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:29:12,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:12,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 21:29:12,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:29:12,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:29:12,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:12,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:12,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:12,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:29:12,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:12,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:29:12,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:12,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:29:12,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:12,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:29:12,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:29:12,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-24 21:29:12,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:12,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:12,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:12,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 21:29:12,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:12,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:29:12,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:12,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:29:12,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 21:29:12,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:29:12,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:29:12,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:29:12,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:12,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:12,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:12,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:29:12,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:12,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:29:12,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:12,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:29:12,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:12,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:29:12,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:12,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-24 21:29:12,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:12,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:12,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:12,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:12,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 21:29:12,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:29:12,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-09-24 21:29:12,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:12,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:29:12,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 21:29:12,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 21:29:12,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:12,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:29:12,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:12,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:12,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:12,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 21:29:12,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:12,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-24 21:29:12,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:12,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:29:12,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 21:29:12,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 21:29:12,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:12,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:29:12,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:12,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:12,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:12,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 21:29:12,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:12,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-24 21:29:12,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:12,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:29:12,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:12,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 21:29:12,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:12,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:29:12,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:12,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:12,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:12,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:29:12,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:12,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:29:12,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:12,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:29:12,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:12,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:29:12,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:12,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 21:29:12,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:12,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:12,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:12,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 21:29:12,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:12,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 21:29:12,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:12,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:29:12,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 21:29:12,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:29:12,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:12,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 21:29:12,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:12,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:12,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:12,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 21:29:12,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:12,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:29:12,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:12,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:29:12,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:12,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:29:12,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:29:12,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 21:29:12,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:12,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:12,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:12,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:29:12,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:12,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:29:12,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:12,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:29:12,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:12,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:29:12,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:29:12,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 21:29:12,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:12,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:12,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:12,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:29:12,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:12,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:29:12,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:12,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:29:12,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:12,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:29:12,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:12,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-09-24 21:29:12,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:12,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:12,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:12,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:29:12,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:12,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:29:12,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:12,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:29:12,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:29:12,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:29:12,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:12,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2020-09-24 21:29:12,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:12,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:12,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:12,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:29:12,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:12,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:29:12,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:12,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:29:12,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:29:12,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:29:12,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:13,005 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-09-24 21:29:13,005 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [801998400] [2020-09-24 21:29:13,006 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:29:13,006 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-09-24 21:29:13,006 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136102868] [2020-09-24 21:29:13,009 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-24 21:29:13,009 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:29:13,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-24 21:29:13,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2020-09-24 21:29:13,010 INFO L87 Difference]: Start difference. First operand 407 states and 455 transitions. Second operand 14 states. [2020-09-24 21:29:13,651 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:29:14,925 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:29:15,591 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:29:15,925 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 21:29:16,275 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 21:29:16,625 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:29:17,021 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 21:29:17,352 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:29:19,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:29:19,804 INFO L93 Difference]: Finished difference Result 922 states and 1140 transitions. [2020-09-24 21:29:19,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-09-24 21:29:19,805 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 257 [2020-09-24 21:29:19,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:29:19,812 INFO L225 Difference]: With dead ends: 922 [2020-09-24 21:29:19,812 INFO L226 Difference]: Without dead ends: 619 [2020-09-24 21:29:19,816 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=199, Invalid=671, Unknown=0, NotChecked=0, Total=870 [2020-09-24 21:29:19,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2020-09-24 21:29:19,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 495. [2020-09-24 21:29:19,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 495 states. [2020-09-24 21:29:19,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 555 transitions. [2020-09-24 21:29:19,895 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 555 transitions. Word has length 257 [2020-09-24 21:29:19,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:29:19,896 INFO L479 AbstractCegarLoop]: Abstraction has 495 states and 555 transitions. [2020-09-24 21:29:19,897 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-24 21:29:19,897 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 555 transitions. [2020-09-24 21:29:19,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-09-24 21:29:19,900 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:29:19,901 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:29:19,901 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 21:29:19,901 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:29:19,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:29:19,902 INFO L82 PathProgramCache]: Analyzing trace with hash -1325616104, now seen corresponding path program 1 times [2020-09-24 21:29:19,902 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:29:19,902 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1140661514] [2020-09-24 21:29:19,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:29:19,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:20,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:20,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:20,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-09-24 21:29:20,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:20,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 762 [2020-09-24 21:29:20,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:20,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:29:20,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 198 [2020-09-24 21:29:20,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:29:20,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:20,993 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:29:20,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:29:21,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:21,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:21,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:21,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 21:29:21,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:21,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-24 21:29:21,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:21,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:29:21,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:21,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:29:21,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:21,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 21:29:21,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:21,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:21,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:21,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:29:21,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:21,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:29:21,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:21,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:29:21,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:21,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:29:21,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:21,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 21:29:21,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:21,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:21,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:21,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:29:21,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:21,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:29:21,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:21,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:29:21,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:21,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:29:21,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:21,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 21:29:21,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:21,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:21,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:21,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:29:21,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:21,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:29:21,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:21,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:29:21,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:21,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:29:21,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:29:21,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 21:29:21,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:21,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:21,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:21,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:29:21,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:21,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:29:21,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:21,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:29:21,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:21,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:29:21,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:29:21,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 21:29:21,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:21,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:21,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:21,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:29:21,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:21,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:29:21,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:21,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:29:21,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:21,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:29:21,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:29:21,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 21:29:21,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:21,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:21,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:21,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:29:21,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:21,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:29:21,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:21,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:29:21,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:21,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:29:21,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:21,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 21:29:21,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:21,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:21,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:21,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 21:29:21,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:21,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:29:21,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:21,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:29:21,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:21,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:29:21,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:29:21,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:29:21,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:21,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:21,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:21,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:29:21,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:21,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:29:21,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:21,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:29:21,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:21,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:29:21,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:29:21,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 21:29:21,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:21,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:21,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:21,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 21:29:21,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:21,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-24 21:29:21,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:21,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:29:21,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 21:29:21,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:29:21,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:29:21,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:29:21,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:21,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:21,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:21,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 21:29:21,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:21,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-24 21:29:21,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:21,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:29:21,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 21:29:21,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:29:21,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:29:21,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:29:21,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:21,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:21,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:21,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 21:29:21,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:21,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-24 21:29:21,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:21,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:29:21,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 21:29:21,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:29:21,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:29:21,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:29:21,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:21,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:21,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:21,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:29:21,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:21,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 21:29:21,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:21,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 21:29:21,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:21,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:29:21,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:29:21,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 21:29:21,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:21,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:21,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:21,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 21:29:21,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:21,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 21:29:21,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:21,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:29:21,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 21:29:21,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:29:21,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:21,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 21:29:21,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:21,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:21,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:21,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 21:29:21,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:21,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:29:21,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:21,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:29:21,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:21,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:29:21,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:29:21,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 21:29:21,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:21,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:21,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:21,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:29:21,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:21,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:29:21,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:21,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:29:21,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:21,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:29:21,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:29:21,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 21:29:21,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:21,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:21,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:21,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:29:21,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:21,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 21:29:21,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:21,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:29:21,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:21,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:29:21,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:29:21,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-09-24 21:29:21,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:21,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:21,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:21,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:29:21,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:21,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:29:21,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:21,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:29:21,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:29:21,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:29:21,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:29:21,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-09-24 21:29:21,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:21,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:21,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:21,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:29:21,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:21,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:29:21,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:21,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:29:21,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:29:21,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:29:21,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:29:21,879 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 21:29:21,880 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1140661514] [2020-09-24 21:29:21,881 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:29:21,881 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 21:29:21,881 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249178829] [2020-09-24 21:29:21,882 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 21:29:21,882 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:29:21,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 21:29:21,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-24 21:29:21,884 INFO L87 Difference]: Start difference. First operand 495 states and 555 transitions. Second operand 10 states. [2020-09-24 21:29:23,364 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:29:23,669 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:29:24,007 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:29:24,348 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:29:24,647 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:29:26,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:29:26,429 INFO L93 Difference]: Finished difference Result 1066 states and 1315 transitions. [2020-09-24 21:29:26,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 21:29:26,429 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 234 [2020-09-24 21:29:26,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:29:26,440 INFO L225 Difference]: With dead ends: 1066 [2020-09-24 21:29:26,440 INFO L226 Difference]: Without dead ends: 686 [2020-09-24 21:29:26,444 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-09-24 21:29:26,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2020-09-24 21:29:26,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 501. [2020-09-24 21:29:26,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 501 states. [2020-09-24 21:29:26,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 561 transitions. [2020-09-24 21:29:26,549 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 561 transitions. Word has length 234 [2020-09-24 21:29:26,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:29:26,550 INFO L479 AbstractCegarLoop]: Abstraction has 501 states and 561 transitions. [2020-09-24 21:29:26,550 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 21:29:26,550 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 561 transitions. [2020-09-24 21:29:26,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-09-24 21:29:26,554 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:29:26,554 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:29:26,555 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 21:29:26,555 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:29:26,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:29:26,555 INFO L82 PathProgramCache]: Analyzing trace with hash -598510827, now seen corresponding path program 1 times [2020-09-24 21:29:26,555 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:29:26,556 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2140450240] [2020-09-24 21:29:26,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:29:26,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:26,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:28,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:28,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-09-24 21:29:28,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:28,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1461 [2020-09-24 21:29:28,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:28,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 21:29:28,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-24 21:29:28,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-09-24 21:29:28,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:28,403 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:29:28,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:29:28,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:28,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:28,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:28,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 21:29:28,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:28,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 232 [2020-09-24 21:29:28,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:28,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:29:28,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:28,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 21:29:28,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:28,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 21:29:28,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:28,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:28,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:28,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:29:28,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:28,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:29:28,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:28,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:29:28,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:28,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:29:28,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:28,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 21:29:28,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:28,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:28,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:28,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:29:28,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:28,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:29:28,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:28,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:29:28,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:28,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:29:28,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:28,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 21:29:28,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:28,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:28,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:28,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:29:28,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:28,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 21:29:28,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:28,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:29:28,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:28,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:29:28,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:28,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 21:29:28,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:28,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:28,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:28,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:29:28,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:28,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:29:28,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:28,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:29:28,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:28,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:29:28,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:28,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 21:29:28,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:28,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:28,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:28,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:29:28,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:28,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:29:28,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:28,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:29:28,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:28,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:29:28,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:28,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 21:29:28,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:28,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:28,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:28,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:29:28,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:28,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:29:28,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:28,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:29:28,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:28,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:29:28,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:28,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 21:29:28,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:28,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:28,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:28,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 21:29:28,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:28,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:29:28,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:28,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:29:28,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:28,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 21:29:28,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:28,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:29:28,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:28,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:28,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:28,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:29:28,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:28,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:29:28,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:28,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:29:28,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:28,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:29:28,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:28,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 21:29:28,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:28,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:28,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:28,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 21:29:28,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:28,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-24 21:29:28,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:28,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:29:28,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-24 21:29:28,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-24 21:29:28,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:28,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:29:28,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:28,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:28,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:28,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 21:29:28,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:28,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-24 21:29:28,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:28,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:29:28,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:28,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 21:29:28,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:28,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:29:28,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:28,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:28,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:28,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 21:29:28,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:28,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 21:29:28,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:28,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:29:28,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:28,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 21:29:28,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:28,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:29:28,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:28,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:28,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:28,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:29:28,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:28,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:29:28,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:28,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:29:28,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:28,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 21:29:28,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:29,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 21:29:29,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:29,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:29,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:29,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 21:29:29,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:29,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 21:29:29,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:29,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:29:29,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:29,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 21:29:29,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:29,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 21:29:29,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:29,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:29,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:29,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 21:29:29,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:29,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:29:29,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:29,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:29:29,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:29,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:29:29,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:29,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 21:29:29,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:29,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:29,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:29,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:29:29,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:29,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:29:29,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:29,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:29:29,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:29,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:29:29,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:29,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 21:29:29,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:29,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:29,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:29,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:29:29,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:29,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:29:29,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:29,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:29:29,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:29,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:29:29,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:29,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-09-24 21:29:29,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:29,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:29,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:29,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:29:29,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:29,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:29:29,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:29,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:29:29,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:29:29,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:29:29,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:29,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-09-24 21:29:29,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:29,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:29,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:29,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:29:29,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:29,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:29:29,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:29,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:29:29,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:29:29,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:29:29,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:29,189 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 21:29:29,190 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2140450240] [2020-09-24 21:29:29,190 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:29:29,190 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 21:29:29,190 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383342883] [2020-09-24 21:29:29,191 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 21:29:29,191 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:29:29,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 21:29:29,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-24 21:29:29,192 INFO L87 Difference]: Start difference. First operand 501 states and 561 transitions. Second operand 8 states. [2020-09-24 21:29:29,710 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:29:30,620 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:29:34,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:29:34,550 INFO L93 Difference]: Finished difference Result 1617 states and 2023 transitions. [2020-09-24 21:29:34,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-24 21:29:34,551 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 234 [2020-09-24 21:29:34,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:29:34,559 INFO L225 Difference]: With dead ends: 1617 [2020-09-24 21:29:34,559 INFO L226 Difference]: Without dead ends: 1219 [2020-09-24 21:29:34,562 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 51 SyntacticMatches, 3 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=156, Invalid=444, Unknown=0, NotChecked=0, Total=600 [2020-09-24 21:29:34,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1219 states. [2020-09-24 21:29:34,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1219 to 951. [2020-09-24 21:29:34,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 951 states. [2020-09-24 21:29:34,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 951 states to 951 states and 1091 transitions. [2020-09-24 21:29:34,682 INFO L78 Accepts]: Start accepts. Automaton has 951 states and 1091 transitions. Word has length 234 [2020-09-24 21:29:34,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:29:34,683 INFO L479 AbstractCegarLoop]: Abstraction has 951 states and 1091 transitions. [2020-09-24 21:29:34,683 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 21:29:34,683 INFO L276 IsEmpty]: Start isEmpty. Operand 951 states and 1091 transitions. [2020-09-24 21:29:34,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2020-09-24 21:29:34,688 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:29:34,688 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:29:34,689 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 21:29:34,689 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:29:34,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:29:34,689 INFO L82 PathProgramCache]: Analyzing trace with hash 1193101703, now seen corresponding path program 1 times [2020-09-24 21:29:34,690 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:29:34,690 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1680533644] [2020-09-24 21:29:34,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:29:34,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:34,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:35,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking...