/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_spec4_product50.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 00:46:32,938 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 00:46:32,942 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 00:46:32,989 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 00:46:32,990 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 00:46:33,002 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 00:46:33,004 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 00:46:33,008 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 00:46:33,011 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 00:46:33,014 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 00:46:33,015 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 00:46:33,017 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 00:46:33,017 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 00:46:33,020 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 00:46:33,023 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 00:46:33,025 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 00:46:33,028 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 00:46:33,029 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 00:46:33,031 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 00:46:33,042 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 00:46:33,044 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 00:46:33,045 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 00:46:33,046 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 00:46:33,047 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 00:46:33,050 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 00:46:33,051 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 00:46:33,051 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 00:46:33,054 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 00:46:33,055 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 00:46:33,058 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 00:46:33,059 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 00:46:33,060 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 00:46:33,061 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 00:46:33,062 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 00:46:33,063 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 00:46:33,064 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 00:46:33,065 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 00:46:33,065 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 00:46:33,065 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 00:46:33,067 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 00:46:33,068 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 00:46:33,069 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 00:46:33,103 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 00:46:33,103 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 00:46:33,104 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 00:46:33,104 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 00:46:33,105 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 00:46:33,105 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 00:46:33,105 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 00:46:33,105 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 00:46:33,106 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 00:46:33,106 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 00:46:33,106 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 00:46:33,106 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 00:46:33,106 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 00:46:33,107 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 00:46:33,107 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 00:46:33,107 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 00:46:33,107 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 00:46:33,107 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 00:46:33,108 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 00:46:33,108 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 00:46:33,108 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 00:46:33,108 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:46:33,109 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 00:46:33,109 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 00:46:33,109 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 00:46:33,109 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 00:46:33,109 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 00:46:33,109 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 00:46:33,110 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 00:46:33,110 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 00:46:33,550 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 00:46:33,568 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 00:46:33,572 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 00:46:33,574 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 00:46:33,575 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 00:46:33,576 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product50.cil.c [2020-09-25 00:46:33,653 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/75ee16206/95b118f130e042d8aba80a29e39ba2d7/FLAGa5cef3b35 [2020-09-25 00:46:34,255 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 00:46:34,255 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product50.cil.c [2020-09-25 00:46:34,274 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/75ee16206/95b118f130e042d8aba80a29e39ba2d7/FLAGa5cef3b35 [2020-09-25 00:46:34,555 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/75ee16206/95b118f130e042d8aba80a29e39ba2d7 [2020-09-25 00:46:34,568 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 00:46:34,573 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 00:46:34,574 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 00:46:34,574 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 00:46:34,579 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 00:46:34,580 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:46:34" (1/1) ... [2020-09-25 00:46:34,585 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e6cae7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:46:34, skipping insertion in model container [2020-09-25 00:46:34,586 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:46:34" (1/1) ... [2020-09-25 00:46:34,598 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 00:46:34,677 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 00:46:35,047 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:46:35,079 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 00:46:35,289 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:46:35,325 INFO L208 MainTranslator]: Completed translation [2020-09-25 00:46:35,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:46:35 WrapperNode [2020-09-25 00:46:35,326 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 00:46:35,327 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 00:46:35,327 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 00:46:35,327 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 00:46:35,345 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:46:35" (1/1) ... [2020-09-25 00:46:35,345 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:46:35" (1/1) ... [2020-09-25 00:46:35,366 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:46:35" (1/1) ... [2020-09-25 00:46:35,367 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:46:35" (1/1) ... [2020-09-25 00:46:35,402 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:46:35" (1/1) ... [2020-09-25 00:46:35,417 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:46:35" (1/1) ... [2020-09-25 00:46:35,422 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:46:35" (1/1) ... [2020-09-25 00:46:35,430 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 00:46:35,431 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 00:46:35,431 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 00:46:35,431 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 00:46:35,432 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:46:35" (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 00:46:35,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 00:46:35,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 00:46:35,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 00:46:35,530 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 00:46:35,530 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 00:46:35,531 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 00:46:35,531 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 00:46:35,531 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 00:46:35,532 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 00:46:35,533 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 00:46:35,533 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 00:46:35,533 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 00:46:35,533 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 00:46:35,533 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 00:46:35,534 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 00:46:35,535 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 00:46:35,535 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 00:46:35,535 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 00:46:35,535 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 00:46:35,536 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 00:46:35,536 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 00:46:35,536 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 00:46:35,537 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 00:46:35,537 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 00:46:35,537 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 00:46:35,538 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 00:46:35,538 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 00:46:35,539 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 00:46:35,539 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 00:46:35,539 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 00:46:35,539 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 00:46:35,539 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 00:46:35,540 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 00:46:35,540 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 00:46:35,540 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 00:46:35,540 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 00:46:35,540 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 00:46:35,541 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 00:46:35,541 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 00:46:35,541 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 00:46:35,541 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 00:46:35,541 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 00:46:35,542 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 00:46:35,542 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 00:46:35,542 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 00:46:35,542 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 00:46:35,542 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 00:46:35,543 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 00:46:35,543 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 00:46:35,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 00:46:35,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 00:46:35,544 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 00:46:35,544 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 00:46:35,545 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 00:46:35,545 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 00:46:35,545 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 00:46:35,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 00:46:35,545 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 00:46:35,546 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 00:46:35,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 00:46:35,546 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 00:46:35,546 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 00:46:35,546 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 00:46:35,546 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 00:46:35,547 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 00:46:35,547 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 00:46:35,547 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 00:46:35,547 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 00:46:35,547 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 00:46:35,547 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 00:46:35,548 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 00:46:35,549 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 00:46:35,550 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 00:46:35,550 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 00:46:35,551 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 00:46:35,551 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 00:46:35,551 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 00:46:35,551 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 00:46:35,551 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 00:46:35,551 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 00:46:35,551 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 00:46:35,552 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 00:46:35,553 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 00:46:35,553 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 00:46:35,553 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 00:46:35,553 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 00:46:35,553 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 00:46:35,553 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 00:46:35,554 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 00:46:35,554 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 00:46:35,554 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 00:46:35,554 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 00:46:35,554 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 00:46:35,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 00:46:35,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 00:46:35,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 00:46:36,883 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 00:46:36,883 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 00:46:36,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:46:36 BoogieIcfgContainer [2020-09-25 00:46:36,891 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 00:46:36,892 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 00:46:36,892 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 00:46:36,896 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 00:46:36,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:46:34" (1/3) ... [2020-09-25 00:46:36,897 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18f7e431 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:46:36, skipping insertion in model container [2020-09-25 00:46:36,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:46:35" (2/3) ... [2020-09-25 00:46:36,898 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18f7e431 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:46:36, skipping insertion in model container [2020-09-25 00:46:36,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:46:36" (3/3) ... [2020-09-25 00:46:36,900 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product50.cil.c [2020-09-25 00:46:36,911 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 00:46:36,920 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 00:46:36,939 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 00:46:36,973 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 00:46:36,973 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 00:46:36,974 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 00:46:36,974 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 00:46:36,974 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 00:46:36,974 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 00:46:36,974 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 00:46:36,974 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 00:46:37,001 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states. [2020-09-25 00:46:37,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 00:46:37,020 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:46:37,021 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 00:46:37,022 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:46:37,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:46:37,030 INFO L82 PathProgramCache]: Analyzing trace with hash 627708892, now seen corresponding path program 1 times [2020-09-25 00:46:37,039 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:46:37,039 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [154183335] [2020-09-25 00:46:37,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:46:37,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:37,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:37,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:39,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:40,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:42,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:42,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 00:46:42,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 00:46:42,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5077 [2020-09-25 00:46:42,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:42,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:46:42,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 138 [2020-09-25 00:46:42,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 00:46:42,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 13 [2020-09-25 00:46:42,953 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:46:42,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:46:42,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:43,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:43,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:43,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:46:43,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:43,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 171 [2020-09-25 00:46:43,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:43,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:43,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:43,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:43,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:46:43,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:46:43,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:43,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:43,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:43,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:46:43,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:43,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 00:46:43,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:43,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:43,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:43,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:43,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:46:43,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:46:43,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:43,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:43,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:43,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:46:43,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:43,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:46:43,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:43,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:43,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:43,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:43,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:46:43,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:46:43,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:43,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:43,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:43,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:46:43,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:43,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:46:43,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:43,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:43,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:43,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:43,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:43,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:46:43,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:43,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:43,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:43,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:46:43,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:43,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:46:43,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:43,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:43,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:43,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:43,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:43,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 00:46:43,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:43,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:43,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:43,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:46:43,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:43,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:46:43,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:43,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:46:43,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:43,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:46:43,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:43,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 00:46:43,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:43,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:43,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:43,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:46:43,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:43,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 00:46:43,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:43,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:46:43,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:43,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:46:43,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:46:43,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:46:43,468 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [154183335] [2020-09-25 00:46:43,470 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:46:43,470 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 00:46:43,471 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232886563] [2020-09-25 00:46:43,480 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 00:46:43,480 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:46:43,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 00:46:43,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 00:46:43,505 INFO L87 Difference]: Start difference. First operand 316 states. Second operand 8 states. [2020-09-25 00:46:44,160 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 00:46:45,451 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:46:45,758 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 00:46:46,105 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:46:46,473 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:46:46,776 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:46:47,568 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:46:47,908 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:46:48,287 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:46:49,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:46:49,656 INFO L93 Difference]: Finished difference Result 613 states and 760 transitions. [2020-09-25 00:46:49,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 00:46:49,659 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-25 00:46:49,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:46:49,680 INFO L225 Difference]: With dead ends: 613 [2020-09-25 00:46:49,681 INFO L226 Difference]: Without dead ends: 408 [2020-09-25 00:46:49,688 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-25 00:46:49,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2020-09-25 00:46:49,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 365. [2020-09-25 00:46:49,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 365 states. [2020-09-25 00:46:49,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 417 transitions. [2020-09-25 00:46:49,831 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 417 transitions. Word has length 142 [2020-09-25 00:46:49,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:46:49,832 INFO L479 AbstractCegarLoop]: Abstraction has 365 states and 417 transitions. [2020-09-25 00:46:49,832 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 00:46:49,832 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 417 transitions. [2020-09-25 00:46:49,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-09-25 00:46:49,841 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:46:49,841 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:46:49,841 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 00:46:49,842 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:46:49,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:46:49,842 INFO L82 PathProgramCache]: Analyzing trace with hash 611743820, now seen corresponding path program 1 times [2020-09-25 00:46:49,842 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:46:49,843 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1556016658] [2020-09-25 00:46:49,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:46:49,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:49,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:50,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:51,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:54,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:54,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-09-25 00:46:54,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:46:54,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-09-25 00:46:54,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:54,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:46:54,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 170 [2020-09-25 00:46:54,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:46:54,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:55,180 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:46:55,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:46:55,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:55,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:55,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:55,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:46:55,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:55,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-09-25 00:46:55,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:55,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:55,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:55,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:55,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:46:55,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:46:55,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:55,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:55,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:55,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:46:55,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:55,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:46:55,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:55,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:55,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:55,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:55,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:55,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:46:55,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:55,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:55,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:55,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:46:55,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:55,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:46:55,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:55,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:55,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:55,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:55,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:55,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:46:55,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:55,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:55,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:55,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:46:55,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:55,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:46:55,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:55,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:55,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:55,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:55,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:55,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:46:55,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:55,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:55,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:55,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:46:55,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:55,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:46:55,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:55,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:55,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:55,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:55,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:55,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 00:46:55,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:55,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:55,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:55,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 00:46:55,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:55,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-09-25 00:46:55,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:55,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:46:55,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 00:46:55,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:46:55,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:46:55,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:46:55,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:55,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:55,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:55,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 00:46:55,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:55,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-09-25 00:46:55,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:55,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:46:55,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 00:46:55,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:46:55,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:55,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:46:55,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:55,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:55,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:55,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 00:46:55,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:55,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-25 00:46:55,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:55,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:46:55,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:55,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 00:46:55,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 00:46:55,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:46:55,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:55,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:55,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:55,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:46:55,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:55,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:46:55,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:55,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:55,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:55,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:55,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:55,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 00:46:55,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:55,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:55,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:55,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:46:55,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:55,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:46:55,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:55,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:55,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 00:46:55,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:55,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:55,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-25 00:46:55,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:55,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:55,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:55,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:46:55,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:55,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:46:55,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:55,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:55,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:46:55,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:55,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:55,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-09-25 00:46:55,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:55,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:55,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:55,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:46:55,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:55,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:46:55,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:55,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:55,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:46:55,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:55,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:46:55,740 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 00:46:55,741 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1556016658] [2020-09-25 00:46:55,742 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:46:55,742 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 00:46:55,742 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893520698] [2020-09-25 00:46:55,745 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 00:46:55,747 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:46:55,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 00:46:55,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 00:46:55,748 INFO L87 Difference]: Start difference. First operand 365 states and 417 transitions. Second operand 9 states. [2020-09-25 00:46:57,250 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:46:57,553 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:46:57,865 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:46:58,206 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:46:58,534 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:46:58,828 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:46:59,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:46:59,883 INFO L93 Difference]: Finished difference Result 708 states and 874 transitions. [2020-09-25 00:46:59,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 00:46:59,885 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 181 [2020-09-25 00:46:59,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:46:59,892 INFO L225 Difference]: With dead ends: 708 [2020-09-25 00:46:59,892 INFO L226 Difference]: Without dead ends: 453 [2020-09-25 00:46:59,896 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2020-09-25 00:46:59,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2020-09-25 00:46:59,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 373. [2020-09-25 00:46:59,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 373 states. [2020-09-25 00:46:59,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 425 transitions. [2020-09-25 00:46:59,964 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 425 transitions. Word has length 181 [2020-09-25 00:46:59,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:46:59,965 INFO L479 AbstractCegarLoop]: Abstraction has 373 states and 425 transitions. [2020-09-25 00:46:59,965 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 00:46:59,965 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 425 transitions. [2020-09-25 00:46:59,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-25 00:46:59,969 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:46:59,969 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:46:59,969 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 00:46:59,970 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:46:59,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:46:59,970 INFO L82 PathProgramCache]: Analyzing trace with hash 1864396910, now seen corresponding path program 1 times [2020-09-25 00:46:59,970 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:46:59,970 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1630890684] [2020-09-25 00:46:59,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:47:00,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:00,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:00,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:05,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:05,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-09-25 00:47:05,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:47:05,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-09-25 00:47:05,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:05,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:47:05,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 175 [2020-09-25 00:47:05,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:47:05,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:47:05,378 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:47:05,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:47:05,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:05,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:05,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:05,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:47:05,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:05,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-25 00:47:05,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:05,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:47:05,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:47:05,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:47:05,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:47:05,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:47:05,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:05,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:05,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:05,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:47:05,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:05,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:47:05,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:05,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:47:05,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:47:05,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:47:05,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:47:05,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:47:05,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:05,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:05,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:05,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:47:05,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:05,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:47:05,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:05,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:47:05,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:47:05,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:47:05,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:47:05,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:47:05,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:05,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:05,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:05,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:47:05,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:05,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:47:05,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:05,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:47:05,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:47:05,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:47:05,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:47:05,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:47:05,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:05,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:05,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:05,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:47:05,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:05,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:47:05,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:05,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:47:05,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:47:05,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:47:05,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:47:05,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 00:47:05,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:05,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:05,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:05,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:47:05,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:05,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:47:05,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:05,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:47:05,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:47:05,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:47:05,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:47:05,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 00:47:05,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:05,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:05,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:05,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 00:47:05,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:05,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-25 00:47:05,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:05,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:47:05,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 00:47:05,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:47:05,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:47:05,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:47:05,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:05,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:05,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:05,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 00:47:05,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:05,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-09-25 00:47:05,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:05,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:47:05,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 00:47:05,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:47:05,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:47:05,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:47:05,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:05,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:05,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:05,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 00:47:05,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:05,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-25 00:47:05,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:05,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:47:05,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 00:47:05,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:47:05,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:47:05,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:47:05,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:05,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:05,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:05,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:47:05,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:05,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 00:47:05,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:05,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:47:05,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:47:05,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:47:05,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:47:05,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 00:47:05,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:05,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:05,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:05,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:47:05,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:05,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:47:05,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:05,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:47:05,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 00:47:05,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:47:05,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:47:05,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-09-25 00:47:05,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:05,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:05,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:05,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:47:05,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:05,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:47:05,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:05,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:47:05,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:47:05,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:47:05,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:47:05,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-25 00:47:05,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:05,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:05,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:05,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:47:05,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:05,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:47:05,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:05,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:47:05,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:47:05,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:47:05,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:47:05,945 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 00:47:05,945 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1630890684] [2020-09-25 00:47:05,946 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:47:05,946 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 00:47:05,947 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326895676] [2020-09-25 00:47:05,947 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 00:47:05,948 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:47:05,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 00:47:05,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 00:47:05,949 INFO L87 Difference]: Start difference. First operand 373 states and 425 transitions. Second operand 9 states. [2020-09-25 00:47:07,523 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:47:07,894 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:47:08,315 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:47:08,633 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:47:08,910 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:47:10,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:47:10,148 INFO L93 Difference]: Finished difference Result 796 states and 1029 transitions. [2020-09-25 00:47:10,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 00:47:10,149 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 194 [2020-09-25 00:47:10,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:47:10,154 INFO L225 Difference]: With dead ends: 796 [2020-09-25 00:47:10,154 INFO L226 Difference]: Without dead ends: 533 [2020-09-25 00:47:10,156 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-09-25 00:47:10,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2020-09-25 00:47:10,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 379. [2020-09-25 00:47:10,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 379 states. [2020-09-25 00:47:10,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 431 transitions. [2020-09-25 00:47:10,215 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 431 transitions. Word has length 194 [2020-09-25 00:47:10,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:47:10,215 INFO L479 AbstractCegarLoop]: Abstraction has 379 states and 431 transitions. [2020-09-25 00:47:10,215 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 00:47:10,216 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 431 transitions. [2020-09-25 00:47:10,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2020-09-25 00:47:10,219 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:47:10,219 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:47:10,219 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 00:47:10,220 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:47:10,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:47:10,220 INFO L82 PathProgramCache]: Analyzing trace with hash 1673384415, now seen corresponding path program 1 times [2020-09-25 00:47:10,220 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:47:10,221 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [924318803] [2020-09-25 00:47:10,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:47:10,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:10,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:10,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:10,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:10,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:15,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:15,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 252 [2020-09-25 00:47:15,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 00:47:15,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5038 [2020-09-25 00:47:15,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:15,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:47:15,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-09-25 00:47:15,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 00:47:15,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:47:15,617 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:47:15,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:47:15,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:15,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:15,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:15,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:47:15,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:15,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-09-25 00:47:15,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:15,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:47:15,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:47:15,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:47:15,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:47:15,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:47:15,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:15,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:15,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:15,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:47:15,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:15,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:47:15,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:15,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:47:15,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:47:15,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:47:15,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:47:15,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:47:15,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:15,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:15,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:15,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:47:15,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:15,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:47:15,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:15,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:47:15,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:47:15,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:47:15,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:47:15,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:47:15,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:15,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:15,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:15,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:47:15,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:15,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:47:15,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:15,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:47:15,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:47:15,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:47:15,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:47:15,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:47:15,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:15,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:15,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:15,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:47:15,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:15,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:47:15,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:15,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:47:15,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:47:15,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:47:15,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:47:15,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-09-25 00:47:15,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:15,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:15,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:15,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 00:47:15,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:15,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 00:47:15,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:15,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:47:15,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:47:15,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 00:47:15,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:47:15,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:47:15,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:15,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:15,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:15,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 00:47:15,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:15,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 00:47:15,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:15,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:47:15,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:47:15,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 00:47:15,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:47:15,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:47:15,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:15,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:15,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:15,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:47:15,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:15,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:47:15,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:15,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:47:15,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:47:15,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:47:15,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:47:15,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-25 00:47:15,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:15,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:15,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:15,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 00:47:15,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:15,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 00:47:15,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:15,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:47:15,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-09-25 00:47:15,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:47:15,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:47:15,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:47:15,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:15,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:15,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:15,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 00:47:15,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:15,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 00:47:15,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:15,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:47:15,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:47:15,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:47:15,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:47:15,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:47:15,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:15,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:15,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:15,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 00:47:15,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:15,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:47:15,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:15,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:47:15,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:47:15,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:47:15,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:47:15,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:47:15,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:15,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:15,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:15,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:47:15,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:15,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:47:15,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:15,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:47:15,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:47:15,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:47:15,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:47:15,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 00:47:15,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:15,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:15,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:15,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:47:15,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:15,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:47:15,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:15,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:47:15,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:47:15,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:47:15,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:47:15,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-09-25 00:47:15,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:15,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:15,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:15,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:47:15,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:15,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:47:15,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:15,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:47:15,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:47:15,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:47:15,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:47:15,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-09-25 00:47:15,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:15,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:15,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:15,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:47:15,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:15,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:47:15,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:15,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:47:15,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:47:15,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:47:15,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:47:16,024 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 00:47:16,024 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [924318803] [2020-09-25 00:47:16,025 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:47:16,025 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 00:47:16,025 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025683939] [2020-09-25 00:47:16,026 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 00:47:16,026 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:47:16,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 00:47:16,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-25 00:47:16,027 INFO L87 Difference]: Start difference. First operand 379 states and 431 transitions. Second operand 6 states. [2020-09-25 00:47:16,763 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 00:47:18,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:47:18,994 INFO L93 Difference]: Finished difference Result 1001 states and 1290 transitions. [2020-09-25 00:47:18,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 00:47:18,995 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 205 [2020-09-25 00:47:18,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:47:19,001 INFO L225 Difference]: With dead ends: 1001 [2020-09-25 00:47:19,003 INFO L226 Difference]: Without dead ends: 709 [2020-09-25 00:47:19,005 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-09-25 00:47:19,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 709 states. [2020-09-25 00:47:19,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 709 to 512. [2020-09-25 00:47:19,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 512 states. [2020-09-25 00:47:19,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 590 transitions. [2020-09-25 00:47:19,092 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 590 transitions. Word has length 205 [2020-09-25 00:47:19,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:47:19,093 INFO L479 AbstractCegarLoop]: Abstraction has 512 states and 590 transitions. [2020-09-25 00:47:19,093 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 00:47:19,093 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 590 transitions. [2020-09-25 00:47:19,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-25 00:47:19,096 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:47:19,096 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:47:19,097 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 00:47:19,097 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:47:19,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:47:19,097 INFO L82 PathProgramCache]: Analyzing trace with hash 224102929, now seen corresponding path program 1 times [2020-09-25 00:47:19,097 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:47:19,098 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1105537904] [2020-09-25 00:47:19,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:47:19,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:19,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:19,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking...