/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=SMALLEST --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_product36.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 18:04:39,444 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 18:04:39,448 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 18:04:39,497 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 18:04:39,498 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 18:04:39,509 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 18:04:39,511 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 18:04:39,515 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 18:04:39,518 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 18:04:39,521 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 18:04:39,522 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 18:04:39,523 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 18:04:39,523 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 18:04:39,526 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 18:04:39,529 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 18:04:39,531 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 18:04:39,532 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 18:04:39,533 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 18:04:39,535 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 18:04:39,545 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 18:04:39,547 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 18:04:39,548 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 18:04:39,549 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 18:04:39,550 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 18:04:39,553 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 18:04:39,553 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 18:04:39,554 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 18:04:39,557 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 18:04:39,557 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 18:04:39,559 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 18:04:39,560 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 18:04:39,561 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 18:04:39,562 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 18:04:39,562 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 18:04:39,563 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 18:04:39,564 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 18:04:39,564 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 18:04:39,565 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 18:04:39,565 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 18:04:39,566 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 18:04:39,567 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 18:04:39,568 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 18:04:39,615 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 18:04:39,615 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 18:04:39,617 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 18:04:39,617 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 18:04:39,618 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 18:04:39,618 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 18:04:39,618 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 18:04:39,619 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 18:04:39,619 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 18:04:39,619 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 18:04:39,620 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 18:04:39,620 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 18:04:39,621 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 18:04:39,621 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 18:04:39,621 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 18:04:39,622 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 18:04:39,622 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 18:04:39,622 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 18:04:39,622 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 18:04:39,622 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 18:04:39,623 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 18:04:39,623 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:04:39,623 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 18:04:39,623 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 18:04:39,623 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 18:04:39,624 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 18:04:39,624 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 18:04:39,624 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 18:04:39,624 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 18:04:39,624 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=SMALLEST;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=SMALLEST;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=SMALLEST;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=SMALLEST;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=SMALLEST;log-additional-information=true; [2020-09-24 18:04:40,051 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 18:04:40,067 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 18:04:40,071 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 18:04:40,074 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 18:04:40,074 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 18:04:40,075 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product36.cil.c [2020-09-24 18:04:40,149 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cabae11b1/a03a6ae318304a2f9368e6348e919acd/FLAG6dc6477d0 [2020-09-24 18:04:40,752 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 18:04:40,753 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product36.cil.c [2020-09-24 18:04:40,769 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cabae11b1/a03a6ae318304a2f9368e6348e919acd/FLAG6dc6477d0 [2020-09-24 18:04:41,075 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cabae11b1/a03a6ae318304a2f9368e6348e919acd [2020-09-24 18:04:41,088 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 18:04:41,094 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 18:04:41,095 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 18:04:41,095 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 18:04:41,102 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 18:04:41,103 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:04:41" (1/1) ... [2020-09-24 18:04:41,107 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b44b751 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:04:41, skipping insertion in model container [2020-09-24 18:04:41,108 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:04:41" (1/1) ... [2020-09-24 18:04:41,116 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 18:04:41,173 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 18:04:41,676 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:04:41,697 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 18:04:41,798 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:04:41,839 INFO L208 MainTranslator]: Completed translation [2020-09-24 18:04:41,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:04:41 WrapperNode [2020-09-24 18:04:41,839 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 18:04:41,840 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 18:04:41,841 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 18:04:41,841 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 18:04:41,857 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:04:41" (1/1) ... [2020-09-24 18:04:41,857 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:04:41" (1/1) ... [2020-09-24 18:04:41,879 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:04:41" (1/1) ... [2020-09-24 18:04:41,879 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:04:41" (1/1) ... [2020-09-24 18:04:41,926 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:04:41" (1/1) ... [2020-09-24 18:04:41,939 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:04:41" (1/1) ... [2020-09-24 18:04:41,945 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:04:41" (1/1) ... [2020-09-24 18:04:41,968 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 18:04:41,969 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 18:04:41,969 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 18:04:41,969 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 18:04:41,975 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:04:41" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:04:42,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 18:04:42,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 18:04:42,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 18:04:42,067 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 18:04:42,067 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 18:04:42,067 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 18:04:42,068 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 18:04:42,068 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 18:04:42,069 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 18:04:42,069 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 18:04:42,069 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 18:04:42,069 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 18:04:42,069 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 18:04:42,070 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 18:04:42,070 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 18:04:42,071 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 18:04:42,071 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 18:04:42,071 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 18:04:42,071 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 18:04:42,072 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 18:04:42,072 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 18:04:42,072 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 18:04:42,073 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 18:04:42,073 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 18:04:42,073 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 18:04:42,074 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 18:04:42,074 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 18:04:42,075 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 18:04:42,075 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 18:04:42,075 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 18:04:42,075 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 18:04:42,075 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 18:04:42,075 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 18:04:42,076 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 18:04:42,076 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 18:04:42,076 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 18:04:42,076 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 18:04:42,076 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 18:04:42,076 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-24 18:04:42,077 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 18:04:42,077 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 18:04:42,077 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 18:04:42,077 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 18:04:42,077 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 18:04:42,077 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 18:04:42,077 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 18:04:42,078 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 18:04:42,078 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 18:04:42,078 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 18:04:42,078 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 18:04:42,079 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 18:04:42,079 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 18:04:42,079 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 18:04:42,079 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 18:04:42,079 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 18:04:42,080 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 18:04:42,080 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 18:04:42,080 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-24 18:04:42,080 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 18:04:42,080 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 18:04:42,080 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 18:04:42,081 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 18:04:42,081 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 18:04:42,081 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 18:04:42,081 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 18:04:42,081 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 18:04:42,082 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 18:04:42,082 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 18:04:42,082 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 18:04:42,082 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 18:04:42,083 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 18:04:42,084 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 18:04:42,085 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 18:04:42,085 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 18:04:42,085 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 18:04:42,085 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 18:04:42,085 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 18:04:42,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 18:04:42,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 18:04:42,086 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 18:04:42,086 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 18:04:42,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 18:04:42,086 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 18:04:42,086 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 18:04:42,087 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 18:04:42,087 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 18:04:42,087 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 18:04:42,088 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 18:04:42,088 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 18:04:42,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 18:04:42,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 18:04:42,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 18:04:43,199 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 18:04:43,199 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 18:04:43,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:04:43 BoogieIcfgContainer [2020-09-24 18:04:43,207 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 18:04:43,209 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 18:04:43,209 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 18:04:43,213 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 18:04:43,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 06:04:41" (1/3) ... [2020-09-24 18:04:43,214 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10a7aab5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:04:43, skipping insertion in model container [2020-09-24 18:04:43,214 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:04:41" (2/3) ... [2020-09-24 18:04:43,214 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10a7aab5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:04:43, skipping insertion in model container [2020-09-24 18:04:43,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:04:43" (3/3) ... [2020-09-24 18:04:43,217 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product36.cil.c [2020-09-24 18:04:43,229 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 18:04:43,241 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 18:04:43,264 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 18:04:43,303 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 18:04:43,303 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 18:04:43,303 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 18:04:43,303 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 18:04:43,303 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 18:04:43,304 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 18:04:43,304 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 18:04:43,304 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 18:04:43,345 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states. [2020-09-24 18:04:43,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 18:04:43,378 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:04:43,380 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] [2020-09-24 18:04:43,380 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:04:43,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:04:43,389 INFO L82 PathProgramCache]: Analyzing trace with hash 391863934, now seen corresponding path program 1 times [2020-09-24 18:04:43,401 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:04:43,402 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1384408030] [2020-09-24 18:04:43,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:04:43,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:04:44,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:04:44,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:04:45,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:04:46,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:04:48,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:04:48,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 18:04:48,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 18:04:48,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-09-24 18:04:48,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:04:48,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:04:48,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 18:04:48,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:04:48,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 18:04:49,322 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:04:49,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:04:49,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:04:49,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:04:49,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:04:49,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:04:49,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:04:49,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-09-24 18:04:49,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:04:49,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:04:49,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:04:49,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:04:49,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:04:49,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:04:49,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:04:49,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:04:49,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:04:49,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:04:49,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:04:49,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:04:49,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:04:49,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:04:49,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:04:49,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:04:49,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:04:49,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:04:49,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:04:49,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:04:49,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:04:49,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:04:49,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:04:49,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:04:49,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:04:49,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:04:49,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:04:49,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:04:49,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:04:49,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:04:49,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:04:49,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:04:49,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:04:49,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:04:49,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:04:49,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 18:04:49,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:04:49,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:04:49,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:04:49,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:04:49,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:04:49,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:04:49,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:04:49,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:04:49,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:04:49,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:04:49,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:04:49,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:04:49,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:04:49,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:04:49,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:04:49,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:04:49,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:04:49,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 18:04:49,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:04:49,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:04:49,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:04:49,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:04:49,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:04:49,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:04:49,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:04:49,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:04:49,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:04:49,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:04:49,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:04:49,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 18:04:49,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:04:49,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:04:49,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:04:49,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:04:49,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:04:49,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:04:49,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:04:49,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:04:49,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:04:49,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:04:49,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:04:49,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:04:49,648 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1384408030] [2020-09-24 18:04:49,650 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:04:49,651 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 18:04:49,652 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669392435] [2020-09-24 18:04:49,664 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 18:04:49,664 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:04:49,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 18:04:49,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:04:49,686 INFO L87 Difference]: Start difference. First operand 291 states. Second operand 3 states. [2020-09-24 18:04:51,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:04:51,162 INFO L93 Difference]: Finished difference Result 448 states and 534 transitions. [2020-09-24 18:04:51,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 18:04:51,164 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-24 18:04:51,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:04:51,186 INFO L225 Difference]: With dead ends: 448 [2020-09-24 18:04:51,186 INFO L226 Difference]: Without dead ends: 282 [2020-09-24 18:04:51,194 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:04:51,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-09-24 18:04:51,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 240. [2020-09-24 18:04:51,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2020-09-24 18:04:51,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 259 transitions. [2020-09-24 18:04:51,304 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 259 transitions. Word has length 142 [2020-09-24 18:04:51,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:04:51,305 INFO L479 AbstractCegarLoop]: Abstraction has 240 states and 259 transitions. [2020-09-24 18:04:51,305 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 18:04:51,306 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 259 transitions. [2020-09-24 18:04:51,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-24 18:04:51,310 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:04:51,311 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] [2020-09-24 18:04:51,311 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 18:04:51,312 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:04:51,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:04:51,312 INFO L82 PathProgramCache]: Analyzing trace with hash 1207117873, now seen corresponding path program 1 times [2020-09-24 18:04:51,312 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:04:51,313 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1864885332] [2020-09-24 18:04:51,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:04:51,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:04:51,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:04:51,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:04:53,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:04:53,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:04:55,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:04:56,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:04:56,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-24 18:04:56,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 18:04:56,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-24 18:04:56,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:04:56,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:04:56,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 18:04:56,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 18:04:56,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:04:56,752 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:04:56,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:04:56,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:04:56,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:04:56,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:04:56,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:04:56,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:04:56,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-24 18:04:56,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:04:56,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:04:56,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:04:56,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:04:56,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:04:56,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:04:56,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:04:56,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:04:56,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:04:56,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:04:56,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:04:56,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:04:56,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:04:56,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:04:56,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:04:56,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:04:56,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:04:56,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:04:56,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:04:56,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:04:56,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:04:56,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:04:56,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:04:56,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:04:56,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:04:56,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:04:56,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:04:56,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:04:56,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:04:56,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:04:56,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:04:56,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:04:56,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:04:56,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:04:56,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:04:56,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:04:56,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:04:56,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:04:56,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:04:56,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:04:56,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:04:56,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:04:56,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:04:56,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:04:56,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:04:56,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:04:56,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:04:56,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:04:56,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:04:56,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:04:56,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:04:56,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:04:56,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:04:56,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 18:04:56,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:04:56,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:04:56,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:04:56,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:04:56,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:04:56,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:04:56,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:04:56,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:04:56,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:04:56,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:04:56,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:04:56,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 18:04:56,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:04:56,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:04:56,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:04:56,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:04:56,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:04:56,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:04:56,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:04:56,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:04:56,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:04:56,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:04:56,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:04:57,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:04:57,010 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1864885332] [2020-09-24 18:04:57,011 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:04:57,011 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 18:04:57,011 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117852081] [2020-09-24 18:04:57,016 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 18:04:57,016 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:04:57,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 18:04:57,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 18:04:57,017 INFO L87 Difference]: Start difference. First operand 240 states and 259 transitions. Second operand 4 states. [2020-09-24 18:04:57,609 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:04:58,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:04:58,402 INFO L93 Difference]: Finished difference Result 352 states and 395 transitions. [2020-09-24 18:04:58,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 18:04:58,403 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-24 18:04:58,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:04:58,409 INFO L225 Difference]: With dead ends: 352 [2020-09-24 18:04:58,409 INFO L226 Difference]: Without dead ends: 265 [2020-09-24 18:04:58,411 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 18:04:58,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2020-09-24 18:04:58,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 230. [2020-09-24 18:04:58,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-09-24 18:04:58,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 246 transitions. [2020-09-24 18:04:58,453 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 246 transitions. Word has length 143 [2020-09-24 18:04:58,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:04:58,454 INFO L479 AbstractCegarLoop]: Abstraction has 230 states and 246 transitions. [2020-09-24 18:04:58,454 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 18:04:58,454 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 246 transitions. [2020-09-24 18:04:58,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-24 18:04:58,456 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:04:58,457 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] [2020-09-24 18:04:58,457 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 18:04:58,457 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:04:58,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:04:58,457 INFO L82 PathProgramCache]: Analyzing trace with hash -2086984222, now seen corresponding path program 1 times [2020-09-24 18:04:58,458 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:04:58,458 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1855905510] [2020-09-24 18:04:58,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:04:58,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:04:58,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:04:58,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:04:59,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:01,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:03,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:03,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-24 18:05:03,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 18:05:03,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-09-24 18:05:03,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:03,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:05:03,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-24 18:05:03,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 18:05:03,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:03,887 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:05:03,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:05:03,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:03,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:03,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:03,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:05:03,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:03,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-24 18:05:03,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:03,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:03,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:03,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:03,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:04,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:05:04,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:04,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:04,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:04,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:05:04,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:04,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:05:04,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:04,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:04,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:04,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:04,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:04,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:05:04,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:04,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:04,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:04,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:05:04,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:04,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:05:04,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:04,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:04,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:04,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:04,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:05:04,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:05:04,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:04,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:04,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:04,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:05:04,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:04,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:05:04,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:04,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:04,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:04,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:04,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:05:04,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:05:04,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:04,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:04,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:04,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:05:04,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:04,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:05:04,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:04,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:04,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:04,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:04,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:05:04,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 18:05:04,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:04,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:04,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:04,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:05:04,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:04,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:05:04,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:04,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:05:04,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:04,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 18:05:04,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:05:04,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 18:05:04,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:04,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:04,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:04,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:05:04,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:04,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 18:05:04,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:04,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:04,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:05:04,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:04,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:05:04,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 18:05:04,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:04,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:04,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:04,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:05:04,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:04,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:05:04,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:04,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:04,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:05:04,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:04,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 18:05:04,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:05:04,165 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1855905510] [2020-09-24 18:05:04,166 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:05:04,166 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 18:05:04,167 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124529634] [2020-09-24 18:05:04,168 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 18:05:04,170 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:05:04,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 18:05:04,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 18:05:04,171 INFO L87 Difference]: Start difference. First operand 230 states and 246 transitions. Second operand 5 states. [2020-09-24 18:05:04,741 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:05:06,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:05:06,507 INFO L93 Difference]: Finished difference Result 536 states and 619 transitions. [2020-09-24 18:05:06,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 18:05:06,508 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-09-24 18:05:06,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:05:06,513 INFO L225 Difference]: With dead ends: 536 [2020-09-24 18:05:06,513 INFO L226 Difference]: Without dead ends: 416 [2020-09-24 18:05:06,515 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 18:05:06,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2020-09-24 18:05:06,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 334. [2020-09-24 18:05:06,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 334 states. [2020-09-24 18:05:06,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 365 transitions. [2020-09-24 18:05:06,579 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 365 transitions. Word has length 156 [2020-09-24 18:05:06,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:05:06,579 INFO L479 AbstractCegarLoop]: Abstraction has 334 states and 365 transitions. [2020-09-24 18:05:06,580 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 18:05:06,580 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 365 transitions. [2020-09-24 18:05:06,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-24 18:05:06,582 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:05:06,582 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] [2020-09-24 18:05:06,582 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 18:05:06,583 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:05:06,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:05:06,583 INFO L82 PathProgramCache]: Analyzing trace with hash 228813241, now seen corresponding path program 1 times [2020-09-24 18:05:06,583 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:05:06,583 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1223796289] [2020-09-24 18:05:06,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:05:06,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:06,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:07,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:07,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:10,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:11,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:11,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-24 18:05:11,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 18:05:11,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-09-24 18:05:11,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:11,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 18:05:11,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 157 [2020-09-24 18:05:11,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 18:05:11,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:12,120 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:05:12,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:05:12,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:12,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:12,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:12,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:05:12,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:12,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-09-24 18:05:12,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:12,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:12,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:12,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:12,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:05:12,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:05:12,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:12,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:12,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:12,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:05:12,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:12,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:05:12,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:12,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:12,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:12,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:12,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:05:12,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:05:12,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:12,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:12,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:12,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:05:12,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:12,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:05:12,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:12,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:12,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:12,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:12,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:05:12,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:05:12,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:12,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:12,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:12,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:05:12,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:12,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:05:12,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:12,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:12,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:12,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:12,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:05:12,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:05:12,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:12,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:12,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:12,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:05:12,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:12,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:05:12,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:12,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:12,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:12,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:12,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:05:12,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-24 18:05:12,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:12,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:12,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:12,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:05:12,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:12,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:05:12,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:12,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:12,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:12,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:12,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:12,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-24 18:05:12,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:12,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:12,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:12,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:05:12,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:12,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 18:05:12,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:12,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:05:12,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:12,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:05:12,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:05:12,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-24 18:05:12,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:12,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:12,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:12,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:05:12,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:12,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 18:05:12,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:12,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:05:12,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:12,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:05:12,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:05:12,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:05:12,509 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1223796289] [2020-09-24 18:05:12,510 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:05:12,510 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 18:05:12,511 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001324091] [2020-09-24 18:05:12,512 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 18:05:12,512 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:05:12,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 18:05:12,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 18:05:12,513 INFO L87 Difference]: Start difference. First operand 334 states and 365 transitions. Second operand 9 states. [2020-09-24 18:05:13,047 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:05:14,320 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:05:14,674 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:05:15,039 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:05:15,375 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 18:05:15,689 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 18:05:16,263 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:05:16,575 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:05:16,919 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:05:17,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:05:17,639 INFO L93 Difference]: Finished difference Result 789 states and 932 transitions. [2020-09-24 18:05:17,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 18:05:17,640 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 161 [2020-09-24 18:05:17,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:05:17,647 INFO L225 Difference]: With dead ends: 789 [2020-09-24 18:05:17,647 INFO L226 Difference]: Without dead ends: 565 [2020-09-24 18:05:17,649 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-24 18:05:17,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2020-09-24 18:05:17,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 496. [2020-09-24 18:05:17,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 496 states. [2020-09-24 18:05:17,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 560 transitions. [2020-09-24 18:05:17,732 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 560 transitions. Word has length 161 [2020-09-24 18:05:17,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:05:17,733 INFO L479 AbstractCegarLoop]: Abstraction has 496 states and 560 transitions. [2020-09-24 18:05:17,733 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 18:05:17,733 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 560 transitions. [2020-09-24 18:05:17,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-09-24 18:05:17,736 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:05:17,736 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] [2020-09-24 18:05:17,737 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 18:05:17,737 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:05:17,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:05:17,737 INFO L82 PathProgramCache]: Analyzing trace with hash -1176469571, now seen corresponding path program 1 times [2020-09-24 18:05:17,738 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:05:17,738 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1751295481] [2020-09-24 18:05:17,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:05:17,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:17,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:18,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:22,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:22,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 228 [2020-09-24 18:05:22,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 18:05:22,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-09-24 18:05:22,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:22,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 18:05:22,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 178 [2020-09-24 18:05:22,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 18:05:22,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:23,101 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:05:23,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:05:23,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:23,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:23,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:23,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:05:23,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:23,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-24 18:05:23,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:23,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:23,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:23,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:23,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:23,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:05:23,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:23,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:23,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:23,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:05:23,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:23,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:05:23,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:23,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:23,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:23,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:23,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:23,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:05:23,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:23,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:23,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:23,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:05:23,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:23,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:05:23,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:23,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:23,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:23,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:23,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:23,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:05:23,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:23,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:23,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:23,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:05:23,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:23,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:05:23,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:23,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:23,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:23,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:23,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:23,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:05:23,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:23,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:23,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:23,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:05:23,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:23,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:05:23,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:23,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:23,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:23,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:23,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:23,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 18:05:23,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:23,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:23,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:23,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:05:23,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:23,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:05:23,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:23,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:23,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:23,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:23,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:23,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 18:05:23,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:23,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:23,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:23,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 18:05:23,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:23,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-24 18:05:23,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:23,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 18:05:23,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 18:05:23,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 18:05:23,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:23,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:05:23,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:23,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:23,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:23,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 18:05:23,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:23,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-24 18:05:23,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:23,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:05:23,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:23,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 18:05:23,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:23,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 18:05:23,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:23,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:23,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:23,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 18:05:23,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:23,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:05:23,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:23,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:23,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:05:23,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:23,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:23,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 18:05:23,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:23,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:23,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:23,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:05:23,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:23,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:05:23,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:23,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:23,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 18:05:23,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:23,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:23,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-09-24 18:05:23,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:23,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:23,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:23,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:05:23,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:23,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:05:23,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:23,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:23,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:05:23,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:23,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:23,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-24 18:05:23,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:23,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:23,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:05:23,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:05:23,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:05:23,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:05:23,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:05:23,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:05:23,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:05:23,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:05:23,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:05:23,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:05:23,506 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1751295481] [2020-09-24 18:05:23,506 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:05:23,507 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 18:05:23,507 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668593683] [2020-09-24 18:05:23,507 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 18:05:23,508 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:05:23,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 18:05:23,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 18:05:23,508 INFO L87 Difference]: Start difference. First operand 496 states and 560 transitions. Second operand 10 states. [2020-09-24 18:05:24,974 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:05:25,294 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 18:05:25,629 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 18:05:25,980 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:05:26,325 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 18:05:26,629 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:05:27,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:05:27,522 INFO L93 Difference]: Finished difference Result 1051 states and 1267 transitions. [2020-09-24 18:05:27,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 18:05:27,522 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 189 [2020-09-24 18:05:27,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:05:27,528 INFO L225 Difference]: With dead ends: 1051 [2020-09-24 18:05:27,528 INFO L226 Difference]: Without dead ends: 665 [2020-09-24 18:05:27,531 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-24 18:05:27,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2020-09-24 18:05:27,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 515. [2020-09-24 18:05:27,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 515 states. [2020-09-24 18:05:27,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 579 transitions. [2020-09-24 18:05:27,603 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 579 transitions. Word has length 189 [2020-09-24 18:05:27,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:05:27,604 INFO L479 AbstractCegarLoop]: Abstraction has 515 states and 579 transitions. [2020-09-24 18:05:27,604 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 18:05:27,605 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 579 transitions. [2020-09-24 18:05:27,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-09-24 18:05:27,608 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:05:27,608 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] [2020-09-24 18:05:27,608 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 18:05:27,608 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:05:27,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:05:27,609 INFO L82 PathProgramCache]: Analyzing trace with hash 1696256861, now seen corresponding path program 1 times [2020-09-24 18:05:27,609 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:05:27,609 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [793095581] [2020-09-24 18:05:27,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:05:27,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:05:27,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:05:28,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking...