/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=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product47.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 00:38:17,623 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 00:38:17,627 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 00:38:17,656 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 00:38:17,656 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 00:38:17,658 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 00:38:17,659 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 00:38:17,661 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 00:38:17,663 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 00:38:17,664 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 00:38:17,665 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 00:38:17,667 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 00:38:17,667 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 00:38:17,668 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 00:38:17,669 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 00:38:17,671 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 00:38:17,672 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 00:38:17,673 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 00:38:17,675 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 00:38:17,677 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 00:38:17,679 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 00:38:17,680 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 00:38:17,682 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 00:38:17,683 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 00:38:17,686 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 00:38:17,686 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 00:38:17,686 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 00:38:17,687 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 00:38:17,688 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 00:38:17,689 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 00:38:17,689 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 00:38:17,690 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 00:38:17,691 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 00:38:17,692 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 00:38:17,694 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 00:38:17,694 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 00:38:17,695 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 00:38:17,695 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 00:38:17,696 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 00:38:17,697 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 00:38:17,698 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 00:38:17,699 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 00:38:17,732 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 00:38:17,732 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 00:38:17,734 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 00:38:17,734 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 00:38:17,734 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 00:38:17,734 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 00:38:17,735 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 00:38:17,736 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 00:38:17,736 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 00:38:17,736 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 00:38:17,737 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 00:38:17,737 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 00:38:17,738 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 00:38:17,738 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 00:38:17,739 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 00:38:17,739 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 00:38:17,739 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 00:38:17,739 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 00:38:17,739 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 00:38:17,740 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 00:38:17,740 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 00:38:17,740 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:38:17,741 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 00:38:17,741 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 00:38:17,741 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 00:38:17,741 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 00:38:17,741 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 00:38:17,742 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 00:38:17,742 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 00:38:17,742 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=DEEPEST;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=DEEPEST;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=DEEPEST;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=DEEPEST;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=DEEPEST;log-additional-information=true; [2020-09-25 00:38:18,209 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 00:38:18,234 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 00:38:18,240 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 00:38:18,243 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 00:38:18,244 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 00:38:18,245 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product47.cil.c [2020-09-25 00:38:18,334 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/403114f44/996d3695d3bc4671812d68b4e3cc4ec6/FLAG8bc01539c [2020-09-25 00:38:18,954 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 00:38:18,957 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product47.cil.c [2020-09-25 00:38:18,979 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/403114f44/996d3695d3bc4671812d68b4e3cc4ec6/FLAG8bc01539c [2020-09-25 00:38:19,188 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/403114f44/996d3695d3bc4671812d68b4e3cc4ec6 [2020-09-25 00:38:19,203 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 00:38:19,210 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 00:38:19,211 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 00:38:19,211 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 00:38:19,216 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 00:38:19,218 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:38:19" (1/1) ... [2020-09-25 00:38:19,223 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27030054 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:38:19, skipping insertion in model container [2020-09-25 00:38:19,223 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:38:19" (1/1) ... [2020-09-25 00:38:19,234 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 00:38:19,307 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 00:38:19,721 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:38:19,833 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 00:38:19,927 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:38:19,967 INFO L208 MainTranslator]: Completed translation [2020-09-25 00:38:19,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:38:19 WrapperNode [2020-09-25 00:38:19,967 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 00:38:19,968 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 00:38:19,968 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 00:38:19,969 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 00:38:19,986 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:38:19" (1/1) ... [2020-09-25 00:38:19,987 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:38:19" (1/1) ... [2020-09-25 00:38:20,009 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:38:19" (1/1) ... [2020-09-25 00:38:20,009 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:38:19" (1/1) ... [2020-09-25 00:38:20,043 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:38:19" (1/1) ... [2020-09-25 00:38:20,056 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:38:19" (1/1) ... [2020-09-25 00:38:20,062 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:38:19" (1/1) ... [2020-09-25 00:38:20,071 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 00:38:20,072 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 00:38:20,072 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 00:38:20,072 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 00:38:20,076 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:38:19" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:38:20,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 00:38:20,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 00:38:20,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 00:38:20,180 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 00:38:20,180 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 00:38:20,181 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 00:38:20,181 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 00:38:20,181 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 00:38:20,182 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 00:38:20,182 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 00:38:20,182 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 00:38:20,183 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 00:38:20,183 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 00:38:20,183 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 00:38:20,183 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 00:38:20,184 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 00:38:20,184 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 00:38:20,185 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 00:38:20,185 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 00:38:20,185 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 00:38:20,185 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-25 00:38:20,185 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 00:38:20,186 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 00:38:20,186 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 00:38:20,187 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 00:38:20,187 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 00:38:20,187 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 00:38:20,187 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 00:38:20,187 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 00:38:20,188 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 00:38:20,188 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 00:38:20,188 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 00:38:20,188 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 00:38:20,188 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 00:38:20,188 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 00:38:20,189 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 00:38:20,189 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 00:38:20,189 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 00:38:20,189 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 00:38:20,189 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 00:38:20,190 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 00:38:20,190 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 00:38:20,190 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 00:38:20,190 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 00:38:20,190 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 00:38:20,190 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 00:38:20,191 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 00:38:20,191 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 00:38:20,191 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 00:38:20,191 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 00:38:20,191 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 00:38:20,192 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 00:38:20,192 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 00:38:20,192 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 00:38:20,192 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 00:38:20,193 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 00:38:20,193 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 00:38:20,193 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 00:38:20,193 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 00:38:20,193 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 00:38:20,193 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 00:38:20,194 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 00:38:20,194 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 00:38:20,194 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 00:38:20,194 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 00:38:20,194 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 00:38:20,194 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 00:38:20,195 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 00:38:20,195 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-25 00:38:20,195 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 00:38:20,196 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 00:38:20,196 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 00:38:20,197 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 00:38:20,198 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 00:38:20,198 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 00:38:20,199 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 00:38:20,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 00:38:20,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 00:38:20,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 00:38:20,199 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 00:38:20,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 00:38:20,199 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 00:38:20,200 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 00:38:20,200 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 00:38:20,200 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 00:38:20,200 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 00:38:20,200 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 00:38:20,201 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 00:38:20,201 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 00:38:20,202 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 00:38:20,202 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 00:38:20,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 00:38:20,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 00:38:20,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 00:38:21,473 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 00:38:21,473 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 00:38:21,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:38:21 BoogieIcfgContainer [2020-09-25 00:38:21,482 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 00:38:21,484 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 00:38:21,486 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 00:38:21,490 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 00:38:21,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:38:19" (1/3) ... [2020-09-25 00:38:21,492 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8687a62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:38:21, skipping insertion in model container [2020-09-25 00:38:21,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:38:19" (2/3) ... [2020-09-25 00:38:21,493 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8687a62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:38:21, skipping insertion in model container [2020-09-25 00:38:21,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:38:21" (3/3) ... [2020-09-25 00:38:21,496 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product47.cil.c [2020-09-25 00:38:21,509 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 00:38:21,523 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 00:38:21,547 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 00:38:21,586 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 00:38:21,587 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 00:38:21,587 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 00:38:21,587 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 00:38:21,587 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 00:38:21,588 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 00:38:21,588 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 00:38:21,588 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 00:38:21,623 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states. [2020-09-25 00:38:21,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 00:38:21,645 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:38:21,647 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:38:21,647 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:38:21,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:38:21,657 INFO L82 PathProgramCache]: Analyzing trace with hash -479235834, now seen corresponding path program 1 times [2020-09-25 00:38:21,670 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:38:21,671 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [833587447] [2020-09-25 00:38:21,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:38:22,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:22,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:22,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:23,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:24,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:26,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:27,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:27,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 00:38:27,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 00:38:27,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-09-25 00:38:27,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:27,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:38:27,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 138 [2020-09-25 00:38:27,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 00:38:27,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 00:38:27,501 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:38:27,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:38:27,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:27,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:27,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:27,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:38:27,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:27,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-09-25 00:38:27,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:27,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:27,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:27,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:27,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:38:27,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:38:27,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:27,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:27,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:27,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:38:27,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:27,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:38:27,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:27,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:27,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:27,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:27,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:27,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:38:27,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:27,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:27,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:27,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:38:27,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:27,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:38:27,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:27,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:27,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:27,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:27,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:27,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:38:27,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:27,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:27,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:27,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:38:27,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:27,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:38:27,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:27,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:27,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:27,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:27,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:38:27,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:38:27,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:27,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:27,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:27,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:38:27,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:27,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:38:27,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:27,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:27,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:27,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:27,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:27,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 00:38:27,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:27,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:27,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:27,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:38:27,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:27,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:38:27,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:27,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:38:27,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:27,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:38:27,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:27,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 00:38:27,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:27,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:27,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:27,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:38:27,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:27,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 00:38:27,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:27,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:38:27,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:27,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:38:27,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:27,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:38:27,933 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [833587447] [2020-09-25 00:38:27,936 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:38:27,936 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 00:38:27,937 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516059009] [2020-09-25 00:38:27,946 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 00:38:27,946 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:38:27,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 00:38:27,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 00:38:27,969 INFO L87 Difference]: Start difference. First operand 316 states. Second operand 8 states. [2020-09-25 00:38:28,658 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 00:38:30,143 WARN L193 SmtUtils]: Spent 554.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-09-25 00:38:30,754 WARN L193 SmtUtils]: Spent 556.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190 [2020-09-25 00:38:31,100 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:38:31,443 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:38:31,798 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:38:32,842 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:38:33,211 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 00:38:33,588 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:38:35,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:38:35,087 INFO L93 Difference]: Finished difference Result 633 states and 811 transitions. [2020-09-25 00:38:35,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 00:38:35,089 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-25 00:38:35,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:38:35,112 INFO L225 Difference]: With dead ends: 633 [2020-09-25 00:38:35,113 INFO L226 Difference]: Without dead ends: 428 [2020-09-25 00:38:35,119 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2020-09-25 00:38:35,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2020-09-25 00:38:35,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 369. [2020-09-25 00:38:35,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 369 states. [2020-09-25 00:38:35,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 421 transitions. [2020-09-25 00:38:35,260 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 421 transitions. Word has length 142 [2020-09-25 00:38:35,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:38:35,261 INFO L479 AbstractCegarLoop]: Abstraction has 369 states and 421 transitions. [2020-09-25 00:38:35,262 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 00:38:35,262 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 421 transitions. [2020-09-25 00:38:35,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-09-25 00:38:35,268 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:38:35,269 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:38:35,269 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 00:38:35,269 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:38:35,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:38:35,270 INFO L82 PathProgramCache]: Analyzing trace with hash 1594978526, now seen corresponding path program 1 times [2020-09-25 00:38:35,270 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:38:35,271 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [603513633] [2020-09-25 00:38:35,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:38:35,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:35,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:35,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:36,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:40,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:40,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 257 [2020-09-25 00:38:40,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:38:40,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-25 00:38:40,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:40,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 00:38:40,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 198 [2020-09-25 00:38:40,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-25 00:38:40,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:40,637 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:38:40,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:38:40,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:40,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:40,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:40,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:38:40,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:40,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-25 00:38:40,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:40,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:40,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:40,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:40,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:40,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:38:40,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:40,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:40,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:40,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:38:40,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:40,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:38:40,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:40,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:40,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:40,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:40,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:40,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:38:40,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:40,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:40,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:40,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:38:40,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:40,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:38:40,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:40,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:40,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:40,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:40,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:40,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:38:40,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:40,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:40,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:40,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:38:40,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:40,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:38:40,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:40,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:40,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:40,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:40,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:40,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:38:40,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:40,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:40,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:40,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:38:40,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:40,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:38:40,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:40,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:40,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:40,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:40,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:40,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 00:38:40,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:40,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:40,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:41,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:41,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 00:38:41,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:38:41,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 893 [2020-09-25 00:38:41,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:41,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:38:41,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 00:38:41,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:38:41,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:38:41,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:38:41,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:41,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:41,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:41,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 00:38:41,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:41,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-25 00:38:41,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:41,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:38:41,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 00:38:41,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:38:41,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:38:41,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:38:41,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:41,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:41,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:41,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 00:38:41,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:41,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-25 00:38:41,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:41,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:38:41,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:41,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 00:38:41,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 00:38:41,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:38:41,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:41,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:41,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:41,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:38:41,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:41,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:38:41,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:41,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:41,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:41,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:41,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:41,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 00:38:41,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:41,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:41,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:41,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 00:38:41,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:41,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 00:38:41,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:41,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:41,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 00:38:41,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:41,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:42,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 00:38:42,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:42,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:42,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:42,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 00:38:42,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:42,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:38:42,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:42,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:42,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:42,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:42,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:38:42,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 00:38:42,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:42,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:42,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:42,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:38:42,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:42,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:38:42,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:42,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:42,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:42,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:42,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:38:42,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 00:38:42,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:42,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:42,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:42,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:38:42,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:42,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:38:42,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:42,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:42,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:42,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:42,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:38:42,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-09-25 00:38:42,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:42,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:42,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:42,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:38:42,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:42,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 00:38:42,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:42,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:38:42,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:42,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:38:42,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:42,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-09-25 00:38:42,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:42,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:42,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:42,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:38:42,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:42,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:38:42,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:42,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:42,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:38:42,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:42,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:42,133 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 00:38:42,134 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [603513633] [2020-09-25 00:38:42,134 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:38:42,134 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-09-25 00:38:42,135 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016537886] [2020-09-25 00:38:42,138 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 00:38:42,139 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:38:42,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 00:38:42,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2020-09-25 00:38:42,140 INFO L87 Difference]: Start difference. First operand 369 states and 421 transitions. Second operand 14 states. [2020-09-25 00:38:42,714 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 00:38:43,719 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:38:44,087 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:38:44,452 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:38:44,862 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:38:45,204 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:38:45,890 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 00:38:46,201 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:38:46,557 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:38:46,929 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:38:47,265 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 00:38:47,620 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:38:47,933 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:38:48,300 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:38:48,651 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:38:49,303 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:38:49,641 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:38:49,970 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:38:50,296 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:38:50,643 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:38:50,949 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:38:53,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:38:53,100 INFO L93 Difference]: Finished difference Result 1045 states and 1408 transitions. [2020-09-25 00:38:53,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-09-25 00:38:53,102 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 212 [2020-09-25 00:38:53,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:38:53,112 INFO L225 Difference]: With dead ends: 1045 [2020-09-25 00:38:53,113 INFO L226 Difference]: Without dead ends: 740 [2020-09-25 00:38:53,123 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=210, Invalid=1050, Unknown=0, NotChecked=0, Total=1260 [2020-09-25 00:38:53,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740 states. [2020-09-25 00:38:53,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740 to 603. [2020-09-25 00:38:53,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 603 states. [2020-09-25 00:38:53,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 691 transitions. [2020-09-25 00:38:53,238 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 691 transitions. Word has length 212 [2020-09-25 00:38:53,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:38:53,239 INFO L479 AbstractCegarLoop]: Abstraction has 603 states and 691 transitions. [2020-09-25 00:38:53,239 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-25 00:38:53,239 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 691 transitions. [2020-09-25 00:38:53,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2020-09-25 00:38:53,245 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:38:53,245 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:38:53,245 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 00:38:53,246 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:38:53,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:38:53,246 INFO L82 PathProgramCache]: Analyzing trace with hash -687418701, now seen corresponding path program 1 times [2020-09-25 00:38:53,246 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:38:53,247 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1868831587] [2020-09-25 00:38:53,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:38:53,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:53,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:53,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:53,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:53,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:53,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:58,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:58,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 297 [2020-09-25 00:38:58,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 00:38:58,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-09-25 00:38:58,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:58,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:38:58,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 209 [2020-09-25 00:38:58,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:38:58,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:38:58,631 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:38:58,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:38:58,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:58,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:58,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:58,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:38:58,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:58,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-25 00:38:58,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:58,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:58,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:58,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:58,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:58,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:38:58,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:58,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:58,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:58,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:38:58,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:58,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:38:58,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:58,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:58,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:58,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:58,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:58,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:38:58,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:58,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:58,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:58,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:38:58,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:58,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:38:58,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:58,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:58,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:58,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:58,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:58,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:38:58,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:58,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:58,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:58,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:38:58,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:58,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:38:58,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:58,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:58,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:58,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:58,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:58,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:38:58,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:58,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:58,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:58,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:38:58,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:58,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:38:58,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:58,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:58,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:58,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:58,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:58,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 00:38:58,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:58,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:58,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:58,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 00:38:58,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:58,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:38:58,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:58,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:58,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:58,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:58,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:58,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 00:38:58,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:58,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:58,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:58,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 00:38:58,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:58,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:38:58,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:58,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:58,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:58,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:58,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:58,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:38:58,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:58,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:58,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:58,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 00:38:58,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:58,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:38:58,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:58,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:58,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:58,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:58,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:58,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:38:58,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:58,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:58,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:58,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:38:58,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:58,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:38:58,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:58,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:58,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:58,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:58,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:58,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-25 00:38:58,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:58,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:58,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:58,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 00:38:58,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:58,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-09-25 00:38:58,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:58,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:38:58,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 00:38:58,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:38:58,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:59,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:38:59,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:59,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:59,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:59,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 00:38:59,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:59,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-09-25 00:38:59,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:59,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:38:59,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 00:38:59,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:38:59,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:59,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:38:59,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:59,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:59,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:59,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 00:38:59,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:59,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-25 00:38:59,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:59,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:38:59,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 00:38:59,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:38:59,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:59,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:38:59,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:59,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:59,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:59,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:38:59,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:59,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 00:38:59,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:59,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:38:59,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:59,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:38:59,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:59,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 00:38:59,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:59,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:59,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:59,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 00:38:59,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:59,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 00:38:59,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:59,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:59,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 00:38:59,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:59,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:59,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 00:38:59,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:59,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:59,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:59,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 00:38:59,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:59,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:38:59,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:59,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:59,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:59,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:59,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:59,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 00:38:59,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:59,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:59,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:59,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:38:59,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:59,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:38:59,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:59,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:59,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:59,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:59,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:59,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 00:38:59,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:59,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:59,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:59,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:38:59,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:59,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:38:59,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:59,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:59,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:59,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:59,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:59,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-09-25 00:38:59,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:59,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:59,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:59,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:38:59,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:59,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:38:59,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:59,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:59,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:38:59,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:59,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:59,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2020-09-25 00:38:59,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:59,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:59,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:59,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:38:59,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:59,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:38:59,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:59,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:59,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:38:59,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:59,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:59,310 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-09-25 00:38:59,311 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1868831587] [2020-09-25 00:38:59,311 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:38:59,311 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 00:38:59,312 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885023403] [2020-09-25 00:38:59,313 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 00:38:59,314 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:38:59,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 00:38:59,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-09-25 00:38:59,314 INFO L87 Difference]: Start difference. First operand 603 states and 691 transitions. Second operand 10 states. [2020-09-25 00:39:01,062 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:39:01,307 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:39:01,673 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:39:01,981 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:39:02,263 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:39:03,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:39:03,751 INFO L93 Difference]: Finished difference Result 1380 states and 1775 transitions. [2020-09-25 00:39:03,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 00:39:03,751 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 242 [2020-09-25 00:39:03,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:39:03,767 INFO L225 Difference]: With dead ends: 1380 [2020-09-25 00:39:03,768 INFO L226 Difference]: Without dead ends: 887 [2020-09-25 00:39:03,771 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=83, Invalid=189, Unknown=0, NotChecked=0, Total=272 [2020-09-25 00:39:03,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2020-09-25 00:39:03,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 615. [2020-09-25 00:39:03,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 615 states. [2020-09-25 00:39:03,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 703 transitions. [2020-09-25 00:39:03,890 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 703 transitions. Word has length 242 [2020-09-25 00:39:03,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:39:03,892 INFO L479 AbstractCegarLoop]: Abstraction has 615 states and 703 transitions. [2020-09-25 00:39:03,892 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 00:39:03,892 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 703 transitions. [2020-09-25 00:39:03,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2020-09-25 00:39:03,897 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:39:03,897 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:39:03,897 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 00:39:03,897 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:39:03,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:39:03,898 INFO L82 PathProgramCache]: Analyzing trace with hash 1552793622, now seen corresponding path program 1 times [2020-09-25 00:39:03,898 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:39:03,898 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [169642086] [2020-09-25 00:39:03,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:39:03,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:39:04,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:39:04,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:39:04,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:39:04,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:39:04,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking...