/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=HIGHLEXORDER --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product59.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 22:29:58,470 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 22:29:58,477 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 22:29:58,525 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 22:29:58,526 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 22:29:58,535 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 22:29:58,537 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 22:29:58,541 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 22:29:58,545 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 22:29:58,548 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 22:29:58,550 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 22:29:58,551 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 22:29:58,551 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 22:29:58,554 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 22:29:58,558 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 22:29:58,560 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 22:29:58,562 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 22:29:58,563 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 22:29:58,565 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 22:29:58,575 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 22:29:58,578 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 22:29:58,579 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 22:29:58,580 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 22:29:58,581 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 22:29:58,597 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 22:29:58,597 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 22:29:58,598 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 22:29:58,599 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 22:29:58,599 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 22:29:58,603 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 22:29:58,603 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 22:29:58,604 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 22:29:58,608 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 22:29:58,609 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 22:29:58,613 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 22:29:58,614 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 22:29:58,615 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 22:29:58,616 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 22:29:58,616 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 22:29:58,617 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 22:29:58,619 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 22:29:58,619 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 22:29:58,666 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 22:29:58,666 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 22:29:58,668 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 22:29:58,669 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 22:29:58,669 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 22:29:58,669 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 22:29:58,669 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 22:29:58,670 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 22:29:58,670 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 22:29:58,670 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 22:29:58,671 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 22:29:58,671 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 22:29:58,672 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 22:29:58,672 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 22:29:58,672 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 22:29:58,673 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 22:29:58,673 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 22:29:58,673 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 22:29:58,673 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 22:29:58,673 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 22:29:58,674 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 22:29:58,674 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 22:29:58,674 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 22:29:58,674 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 22:29:58,675 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 22:29:58,675 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 22:29:58,675 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 22:29:58,675 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 22:29:58,675 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 22:29:58,675 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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;log-additional-information=true; [2020-09-24 22:29:59,129 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 22:29:59,153 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 22:29:59,157 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 22:29:59,160 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 22:29:59,160 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 22:29:59,161 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product59.cil.c [2020-09-24 22:29:59,253 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8b19f317f/b0cb12897e754221bd240046a30fffe3/FLAGcd0833e2a [2020-09-24 22:29:59,861 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 22:29:59,863 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product59.cil.c [2020-09-24 22:29:59,888 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8b19f317f/b0cb12897e754221bd240046a30fffe3/FLAGcd0833e2a [2020-09-24 22:30:00,155 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8b19f317f/b0cb12897e754221bd240046a30fffe3 [2020-09-24 22:30:00,168 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 22:30:00,174 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 22:30:00,175 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 22:30:00,175 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 22:30:00,181 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 22:30:00,183 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:30:00" (1/1) ... [2020-09-24 22:30:00,187 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5341aa08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:30:00, skipping insertion in model container [2020-09-24 22:30:00,188 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:30:00" (1/1) ... [2020-09-24 22:30:00,199 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 22:30:00,277 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 22:30:00,767 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:30:00,782 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 22:30:00,912 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:30:00,953 INFO L208 MainTranslator]: Completed translation [2020-09-24 22:30:00,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:30:00 WrapperNode [2020-09-24 22:30:00,954 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 22:30:00,955 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 22:30:00,955 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 22:30:00,955 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 22:30:00,970 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:30:00" (1/1) ... [2020-09-24 22:30:00,971 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:30:00" (1/1) ... [2020-09-24 22:30:00,992 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:30:00" (1/1) ... [2020-09-24 22:30:00,992 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:30:00" (1/1) ... [2020-09-24 22:30:01,032 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:30:00" (1/1) ... [2020-09-24 22:30:01,044 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:30:00" (1/1) ... [2020-09-24 22:30:01,049 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:30:00" (1/1) ... [2020-09-24 22:30:01,058 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 22:30:01,059 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 22:30:01,059 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 22:30:01,059 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 22:30:01,061 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:30:00" (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 22:30:01,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 22:30:01,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 22:30:01,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 22:30:01,164 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 22:30:01,164 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 22:30:01,164 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 22:30:01,165 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 22:30:01,165 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 22:30:01,165 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 22:30:01,165 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 22:30:01,165 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 22:30:01,166 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 22:30:01,166 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 22:30:01,166 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 22:30:01,166 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 22:30:01,167 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 22:30:01,167 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 22:30:01,167 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 22:30:01,167 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 22:30:01,168 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 22:30:01,168 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 22:30:01,168 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 22:30:01,168 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 22:30:01,168 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 22:30:01,169 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 22:30:01,169 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 22:30:01,169 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-24 22:30:01,169 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 22:30:01,169 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 22:30:01,169 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 22:30:01,170 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 22:30:01,170 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 22:30:01,170 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 22:30:01,170 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 22:30:01,170 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 22:30:01,171 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 22:30:01,171 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 22:30:01,171 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 22:30:01,171 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 22:30:01,171 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 22:30:01,171 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 22:30:01,171 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 22:30:01,172 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 22:30:01,172 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 22:30:01,172 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 22:30:01,172 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 22:30:01,172 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 22:30:01,172 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 22:30:01,173 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 22:30:01,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 22:30:01,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 22:30:01,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 22:30:01,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 22:30:01,174 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 22:30:01,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 22:30:01,174 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 22:30:01,174 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 22:30:01,174 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 22:30:01,174 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 22:30:01,175 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 22:30:01,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 22:30:01,175 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 22:30:01,175 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 22:30:01,175 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 22:30:01,175 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 22:30:01,175 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 22:30:01,176 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 22:30:01,176 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 22:30:01,176 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 22:30:01,176 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 22:30:01,176 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 22:30:01,176 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 22:30:01,177 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 22:30:01,177 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 22:30:01,177 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 22:30:01,177 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 22:30:01,177 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 22:30:01,177 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 22:30:01,178 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 22:30:01,178 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 22:30:01,178 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 22:30:01,178 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 22:30:01,178 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 22:30:01,178 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 22:30:01,179 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-24 22:30:01,179 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 22:30:01,179 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 22:30:01,179 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 22:30:01,179 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 22:30:01,179 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 22:30:01,180 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 22:30:01,180 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 22:30:01,180 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 22:30:01,180 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 22:30:01,180 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 22:30:01,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 22:30:01,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 22:30:01,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 22:30:02,442 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 22:30:02,443 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 22:30:02,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:30:02 BoogieIcfgContainer [2020-09-24 22:30:02,452 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 22:30:02,453 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 22:30:02,454 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 22:30:02,458 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 22:30:02,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 10:30:00" (1/3) ... [2020-09-24 22:30:02,459 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3695c44e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:30:02, skipping insertion in model container [2020-09-24 22:30:02,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:30:00" (2/3) ... [2020-09-24 22:30:02,460 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3695c44e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:30:02, skipping insertion in model container [2020-09-24 22:30:02,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:30:02" (3/3) ... [2020-09-24 22:30:02,463 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product59.cil.c [2020-09-24 22:30:02,478 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 22:30:02,491 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 22:30:02,516 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 22:30:02,556 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 22:30:02,556 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 22:30:02,556 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 22:30:02,557 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 22:30:02,557 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 22:30:02,557 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 22:30:02,557 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 22:30:02,557 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 22:30:02,592 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states. [2020-09-24 22:30:02,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-24 22:30:02,613 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:30:02,615 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:30:02,616 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:30:02,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:30:02,626 INFO L82 PathProgramCache]: Analyzing trace with hash 1122426674, now seen corresponding path program 1 times [2020-09-24 22:30:02,641 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:30:02,641 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1282317379] [2020-09-24 22:30:02,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:30:03,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:03,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:03,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:04,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:08,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:08,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-24 22:30:08,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 22:30:08,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-09-24 22:30:08,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:08,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:30:08,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 22:30:08,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:30:08,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 22:30:08,526 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:30:08,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:30:08,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:08,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:08,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:08,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:30:08,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:08,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-09-24 22:30:08,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:08,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:30:08,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:08,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:30:08,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:08,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:30:08,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:08,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:08,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:08,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:30:08,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:08,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:30:08,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:08,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:30:08,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:08,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:30:08,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:30:08,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:30:08,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:08,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:08,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:08,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:30:08,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:08,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:30:08,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:08,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:30:08,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:08,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:30:08,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:30:08,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:30:08,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:08,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:08,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:08,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:30:08,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:08,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 22:30:08,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:08,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:30:08,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:08,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:30:08,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:30:08,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:30:08,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:08,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:08,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:08,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:30:08,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:08,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:30:08,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:08,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:30:08,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:08,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:30:08,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:30:08,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 22:30:08,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:08,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:08,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:08,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:30:08,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:08,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:30:08,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:08,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:30:08,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:30:08,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:30:08,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:08,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 22:30:08,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:08,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:08,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:08,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:30:08,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:08,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:30:08,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:08,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:30:08,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:30:08,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:30:08,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:30:08,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 22:30:08,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:08,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:08,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:08,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:30:08,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:08,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:30:08,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:08,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:30:08,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:30:08,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:30:08,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:30:08,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:30:08,937 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1282317379] [2020-09-24 22:30:08,939 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:30:08,939 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 22:30:08,940 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223439231] [2020-09-24 22:30:08,947 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 22:30:08,948 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:30:08,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 22:30:08,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 22:30:08,970 INFO L87 Difference]: Start difference. First operand 346 states. Second operand 3 states. [2020-09-24 22:30:10,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:30:10,508 INFO L93 Difference]: Finished difference Result 561 states and 663 transitions. [2020-09-24 22:30:10,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 22:30:10,510 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-24 22:30:10,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:30:10,532 INFO L225 Difference]: With dead ends: 561 [2020-09-24 22:30:10,532 INFO L226 Difference]: Without dead ends: 340 [2020-09-24 22:30:10,538 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 22:30:10,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2020-09-24 22:30:10,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 295. [2020-09-24 22:30:10,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 295 states. [2020-09-24 22:30:10,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 322 transitions. [2020-09-24 22:30:10,654 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 322 transitions. Word has length 153 [2020-09-24 22:30:10,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:30:10,656 INFO L479 AbstractCegarLoop]: Abstraction has 295 states and 322 transitions. [2020-09-24 22:30:10,656 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 22:30:10,656 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 322 transitions. [2020-09-24 22:30:10,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-24 22:30:10,661 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:30:10,661 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:30:10,661 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 22:30:10,662 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:30:10,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:30:10,662 INFO L82 PathProgramCache]: Analyzing trace with hash -987340637, now seen corresponding path program 1 times [2020-09-24 22:30:10,662 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:30:10,663 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1185296517] [2020-09-24 22:30:10,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:30:10,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:10,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:10,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:12,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:15,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:15,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-24 22:30:15,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 22:30:15,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-09-24 22:30:15,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:15,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:30:15,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 22:30:15,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 22:30:15,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:30:16,099 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:30:16,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:30:16,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:16,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:16,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:16,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:30:16,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:16,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-09-24 22:30:16,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:16,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:30:16,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:16,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:30:16,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:16,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:30:16,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:16,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:16,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:16,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:30:16,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:16,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:30:16,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:16,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:30:16,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:16,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:30:16,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:16,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:30:16,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:16,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:16,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:16,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:30:16,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:16,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:30:16,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:16,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:30:16,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:16,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:30:16,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:16,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:30:16,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:16,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:16,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:16,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:30:16,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:16,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:30:16,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:16,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:30:16,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:16,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:30:16,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:16,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:30:16,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:16,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:16,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:16,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:30:16,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:16,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:30:16,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:16,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:30:16,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:16,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:30:16,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:16,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-24 22:30:16,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:16,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:16,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:16,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:30:16,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:16,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:30:16,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:16,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:30:16,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:30:16,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:30:16,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:16,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 22:30:16,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:16,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:16,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:16,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:30:16,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:16,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:30:16,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:16,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:30:16,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:30:16,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:30:16,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:16,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-24 22:30:16,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:16,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:16,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:16,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:30:16,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:16,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:30:16,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:16,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:30:16,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:30:16,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:30:16,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:30:16,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:30:16,346 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1185296517] [2020-09-24 22:30:16,346 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:30:16,347 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 22:30:16,347 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292052469] [2020-09-24 22:30:16,350 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 22:30:16,351 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:30:16,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 22:30:16,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 22:30:16,352 INFO L87 Difference]: Start difference. First operand 295 states and 322 transitions. Second operand 4 states. [2020-09-24 22:30:17,070 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:30:18,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:30:18,363 INFO L93 Difference]: Finished difference Result 472 states and 530 transitions. [2020-09-24 22:30:18,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 22:30:18,364 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-24 22:30:18,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:30:18,370 INFO L225 Difference]: With dead ends: 472 [2020-09-24 22:30:18,370 INFO L226 Difference]: Without dead ends: 323 [2020-09-24 22:30:18,373 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 22:30:18,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2020-09-24 22:30:18,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 285. [2020-09-24 22:30:18,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 285 states. [2020-09-24 22:30:18,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 309 transitions. [2020-09-24 22:30:18,423 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 309 transitions. Word has length 154 [2020-09-24 22:30:18,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:30:18,424 INFO L479 AbstractCegarLoop]: Abstraction has 285 states and 309 transitions. [2020-09-24 22:30:18,424 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 22:30:18,425 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 309 transitions. [2020-09-24 22:30:18,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-24 22:30:18,427 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:30:18,427 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:30:18,427 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 22:30:18,428 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:30:18,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:30:18,428 INFO L82 PathProgramCache]: Analyzing trace with hash 201269353, now seen corresponding path program 1 times [2020-09-24 22:30:18,428 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:30:18,429 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1176006870] [2020-09-24 22:30:18,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:30:18,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:18,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:19,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:23,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:23,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-24 22:30:23,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:30:23,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4562 [2020-09-24 22:30:23,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:23,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 22:30:23,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-24 22:30:23,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-24 22:30:23,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:23,423 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:30:23,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:30:23,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:23,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:23,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:23,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:30:23,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:23,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 274 [2020-09-24 22:30:23,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:23,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:30:23,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:23,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 22:30:23,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:23,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:30:23,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:23,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:23,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:23,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:30:23,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:23,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:30:23,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:23,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:30:23,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:23,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 22:30:23,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:30:23,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:30:23,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:23,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:23,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:23,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:30:23,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:23,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:30:23,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:23,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:30:23,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:23,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 22:30:23,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:30:23,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:30:23,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:23,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:23,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:23,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:30:23,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:23,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 22:30:23,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:23,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:30:23,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:23,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:30:23,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:23,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:30:23,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:23,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:23,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:23,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:30:23,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:23,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:30:23,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:23,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:30:23,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:23,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 22:30:23,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:23,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 22:30:23,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:23,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:23,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:23,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:30:23,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:23,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:30:23,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:23,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:30:23,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:30:23,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:30:23,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:23,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 22:30:23,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:23,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:23,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:23,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:30:23,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:23,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:30:23,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:23,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:30:23,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:30:23,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:30:23,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:23,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-24 22:30:23,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:23,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:23,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:23,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:30:23,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:23,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:30:23,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:23,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:30:23,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:30:23,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:30:23,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:23,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:30:23,905 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1176006870] [2020-09-24 22:30:23,905 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:30:23,905 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 22:30:23,906 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714835973] [2020-09-24 22:30:23,906 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 22:30:23,906 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:30:23,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 22:30:23,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 22:30:23,907 INFO L87 Difference]: Start difference. First operand 285 states and 309 transitions. Second operand 5 states. [2020-09-24 22:30:24,461 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 22:30:25,180 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:30:27,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:30:27,503 INFO L93 Difference]: Finished difference Result 781 states and 894 transitions. [2020-09-24 22:30:27,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 22:30:27,504 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 163 [2020-09-24 22:30:27,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:30:27,511 INFO L225 Difference]: With dead ends: 781 [2020-09-24 22:30:27,511 INFO L226 Difference]: Without dead ends: 606 [2020-09-24 22:30:27,513 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 22:30:27,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2020-09-24 22:30:27,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 535. [2020-09-24 22:30:27,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 535 states. [2020-09-24 22:30:27,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 598 transitions. [2020-09-24 22:30:27,600 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 598 transitions. Word has length 163 [2020-09-24 22:30:27,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:30:27,601 INFO L479 AbstractCegarLoop]: Abstraction has 535 states and 598 transitions. [2020-09-24 22:30:27,601 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 22:30:27,601 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 598 transitions. [2020-09-24 22:30:27,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-24 22:30:27,605 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:30:27,605 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:30:27,605 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 22:30:27,605 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:30:27,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:30:27,606 INFO L82 PathProgramCache]: Analyzing trace with hash 190259109, now seen corresponding path program 1 times [2020-09-24 22:30:27,606 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:30:27,606 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1608429340] [2020-09-24 22:30:27,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:30:27,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:27,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:29,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:29,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-24 22:30:29,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:29,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1778 [2020-09-24 22:30:29,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:29,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 22:30:29,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 22:30:29,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-09-24 22:30:29,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:29,789 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:30:29,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:30:29,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:29,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:30,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:30,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:30:30,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:30,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 284 [2020-09-24 22:30:30,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:30,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:30:30,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:30,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 22:30:30,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:30:30,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:30:30,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:30,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:30,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:30,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:30:30,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:30,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:30:30,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:30,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:30:30,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:30,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 22:30:30,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:30:30,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:30:30,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:30,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:30,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:30,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:30:30,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:30,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:30:30,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:30,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:30:30,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:30,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 22:30:30,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:30:30,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:30:30,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:30,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:30,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:30,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:30:30,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:30,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 22:30:30,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:30,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:30:30,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:30,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:30:30,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:30:30,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:30:30,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:30,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:30,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:30,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:30:30,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:30,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:30:30,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:30,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:30:30,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:30,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 22:30:30,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:30:30,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-24 22:30:30,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:30,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:30,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:30,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:30:30,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:30,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:30:30,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:30,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:30:30,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:30,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 22:30:30,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:30:30,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-24 22:30:30,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:30,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:30,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:30,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:30:30,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:30,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:30:30,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:30,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:30:30,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:30,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:30:30,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:30:30,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-24 22:30:30,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:30,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:30,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:30,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:30:30,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:30,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 22:30:30,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:30,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:30:30,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:30,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:30:30,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:30,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-24 22:30:30,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:30,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:30,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:30,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:30:30,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:30,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:30:30,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:30,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:30:30,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:30:30,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:30:30,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:30,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:30:30,401 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1608429340] [2020-09-24 22:30:30,402 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:30:30,402 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 22:30:30,402 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40512898] [2020-09-24 22:30:30,407 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 22:30:30,408 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:30:30,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 22:30:30,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 22:30:30,409 INFO L87 Difference]: Start difference. First operand 535 states and 598 transitions. Second operand 9 states. [2020-09-24 22:30:31,104 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 22:30:33,326 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:30:33,989 WARN L193 SmtUtils]: Spent 568.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-24 22:30:34,352 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:30:34,757 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 22:30:35,100 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:30:35,434 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 22:30:35,712 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:30:36,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:30:36,873 INFO L93 Difference]: Finished difference Result 1472 states and 1755 transitions. [2020-09-24 22:30:36,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 22:30:36,874 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 172 [2020-09-24 22:30:36,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:30:36,882 INFO L225 Difference]: With dead ends: 1472 [2020-09-24 22:30:36,882 INFO L226 Difference]: Without dead ends: 1047 [2020-09-24 22:30:36,885 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-24 22:30:36,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states. [2020-09-24 22:30:37,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 943. [2020-09-24 22:30:37,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 943 states. [2020-09-24 22:30:37,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 943 states to 943 states and 1077 transitions. [2020-09-24 22:30:37,055 INFO L78 Accepts]: Start accepts. Automaton has 943 states and 1077 transitions. Word has length 172 [2020-09-24 22:30:37,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:30:37,056 INFO L479 AbstractCegarLoop]: Abstraction has 943 states and 1077 transitions. [2020-09-24 22:30:37,059 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 22:30:37,059 INFO L276 IsEmpty]: Start isEmpty. Operand 943 states and 1077 transitions. [2020-09-24 22:30:37,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-24 22:30:37,063 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:30:37,064 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:30:37,064 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 22:30:37,064 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:30:37,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:30:37,065 INFO L82 PathProgramCache]: Analyzing trace with hash 1551913356, now seen corresponding path program 1 times [2020-09-24 22:30:37,065 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:30:37,065 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [576701008] [2020-09-24 22:30:37,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:30:37,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:37,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:37,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:38,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:39,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:42,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:42,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 212 [2020-09-24 22:30:42,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 22:30:42,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-09-24 22:30:42,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:42,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:30:42,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 157 [2020-09-24 22:30:42,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 22:30:42,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:42,424 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:30:42,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:30:42,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:42,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:42,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:42,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:30:42,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:42,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-24 22:30:42,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:42,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:30:42,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:42,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:30:42,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:42,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:30:42,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:42,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:42,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:42,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:30:42,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:42,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:30:42,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:42,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:30:42,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:42,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:30:42,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:42,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:30:42,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:42,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:42,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:42,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:30:42,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:42,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:30:42,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:42,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:30:42,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:42,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:30:42,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:42,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:30:42,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:42,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:42,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:42,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:30:42,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:42,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:30:42,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:42,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:30:42,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:42,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:30:42,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:42,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:30:42,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:42,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:42,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:42,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:30:42,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:42,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:30:42,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:42,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:30:42,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:42,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:30:42,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:42,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-24 22:30:42,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:42,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:42,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:42,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:30:42,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:42,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:30:42,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:42,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:30:42,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:42,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:30:42,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:42,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 22:30:42,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:42,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:42,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:42,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:30:42,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:42,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 22:30:42,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:42,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:30:42,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:42,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 22:30:42,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:42,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-24 22:30:42,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:42,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:42,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:42,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:30:42,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:42,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:30:42,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:42,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:30:42,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:42,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:30:42,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:42,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-24 22:30:42,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:42,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:42,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:42,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:30:42,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:42,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:30:42,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:42,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:30:42,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:42,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:30:42,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:42,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-09-24 22:30:42,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:30:42,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:30:42,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:30:42,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:30:42,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:30:42,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 22:30:42,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:30:42,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:30:42,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:30:42,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:30:42,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:30:42,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:30:42,714 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [576701008] [2020-09-24 22:30:42,715 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:30:42,715 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 22:30:42,715 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154869384] [2020-09-24 22:30:42,715 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 22:30:42,716 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:30:42,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 22:30:42,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 22:30:42,717 INFO L87 Difference]: Start difference. First operand 943 states and 1077 transitions. Second operand 10 states. [2020-09-24 22:30:43,674 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:30:45,878 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 22:30:46,234 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 22:30:46,553 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:30:46,981 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 22:30:47,415 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 190