/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.5 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product57.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 14:14:10,464 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 14:14:10,470 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 14:14:10,523 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 14:14:10,523 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 14:14:10,535 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 14:14:10,537 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 14:14:10,540 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 14:14:10,543 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 14:14:10,544 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 14:14:10,545 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 14:14:10,549 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 14:14:10,549 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 14:14:10,553 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 14:14:10,555 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 14:14:10,557 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 14:14:10,560 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 14:14:10,561 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 14:14:10,563 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 14:14:10,570 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 14:14:10,572 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 14:14:10,573 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 14:14:10,574 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 14:14:10,575 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 14:14:10,578 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 14:14:10,578 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 14:14:10,578 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 14:14:10,579 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 14:14:10,580 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 14:14:10,581 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 14:14:10,581 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 14:14:10,582 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 14:14:10,583 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 14:14:10,584 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 14:14:10,585 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 14:14:10,585 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 14:14:10,586 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 14:14:10,586 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 14:14:10,586 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 14:14:10,587 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 14:14:10,588 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 14:14:10,589 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 14:14:10,615 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 14:14:10,616 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 14:14:10,617 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 14:14:10,617 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 14:14:10,618 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 14:14:10,618 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 14:14:10,618 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 14:14:10,618 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 14:14:10,619 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 14:14:10,619 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 14:14:10,619 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 14:14:10,619 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 14:14:10,619 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 14:14:10,620 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 14:14:10,620 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 14:14:10,620 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 14:14:10,620 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 14:14:10,620 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 14:14:10,621 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 14:14:10,621 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 14:14:10,621 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 14:14:10,621 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:14:10,622 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 14:14:10,622 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 14:14:10,622 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 14:14:10,622 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 14:14:10,622 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 14:14:10,623 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 14:14:10,623 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 14:14:10,623 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=SMALLESTAMONGWIDE;tolerance=0.5;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=SMALLESTAMONGWIDE;tolerance=0.5;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=SMALLESTAMONGWIDE;tolerance=0.5;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=SMALLESTAMONGWIDE;tolerance=0.5;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=SMALLESTAMONGWIDE;tolerance=0.5;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=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; [2020-09-25 14:14:11,098 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 14:14:11,127 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 14:14:11,133 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 14:14:11,135 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 14:14:11,137 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 14:14:11,138 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product57.cil.c [2020-09-25 14:14:11,220 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/18b401352/2109f034441f4bba8930bf80de683a88/FLAG66f4b6844 [2020-09-25 14:14:11,810 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 14:14:11,811 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product57.cil.c [2020-09-25 14:14:11,827 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/18b401352/2109f034441f4bba8930bf80de683a88/FLAG66f4b6844 [2020-09-25 14:14:12,107 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/18b401352/2109f034441f4bba8930bf80de683a88 [2020-09-25 14:14:12,123 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 14:14:12,127 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 14:14:12,129 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 14:14:12,130 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 14:14:12,134 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 14:14:12,135 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:14:12" (1/1) ... [2020-09-25 14:14:12,140 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28c71f20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:14:12, skipping insertion in model container [2020-09-25 14:14:12,140 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:14:12" (1/1) ... [2020-09-25 14:14:12,150 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 14:14:12,206 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 14:14:12,695 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:14:12,723 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 14:14:12,834 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:14:12,880 INFO L208 MainTranslator]: Completed translation [2020-09-25 14:14:12,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:14:12 WrapperNode [2020-09-25 14:14:12,882 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 14:14:12,883 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 14:14:12,883 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 14:14:12,883 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 14:14:12,902 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:14:12" (1/1) ... [2020-09-25 14:14:12,904 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:14:12" (1/1) ... [2020-09-25 14:14:12,948 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:14:12" (1/1) ... [2020-09-25 14:14:12,948 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:14:12" (1/1) ... [2020-09-25 14:14:12,985 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:14:12" (1/1) ... [2020-09-25 14:14:12,997 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:14:12" (1/1) ... [2020-09-25 14:14:13,002 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:14:12" (1/1) ... [2020-09-25 14:14:13,010 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 14:14:13,011 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 14:14:13,011 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 14:14:13,011 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 14:14:13,013 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:14:12" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:14:13,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 14:14:13,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 14:14:13,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 14:14:13,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 14:14:13,108 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 14:14:13,108 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 14:14:13,108 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 14:14:13,108 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 14:14:13,109 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 14:14:13,109 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 14:14:13,109 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 14:14:13,109 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 14:14:13,109 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 14:14:13,110 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 14:14:13,110 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 14:14:13,110 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 14:14:13,110 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 14:14:13,110 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 14:14:13,111 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 14:14:13,111 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 14:14:13,111 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 14:14:13,111 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 14:14:13,112 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 14:14:13,112 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 14:14:13,112 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 14:14:13,112 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 14:14:13,112 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 14:14:13,113 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 14:14:13,113 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 14:14:13,113 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 14:14:13,113 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 14:14:13,113 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 14:14:13,113 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 14:14:13,113 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 14:14:13,114 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 14:14:13,114 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 14:14:13,114 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 14:14:13,114 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 14:14:13,114 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 14:14:13,114 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 14:14:13,115 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 14:14:13,115 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 14:14:13,115 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 14:14:13,115 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 14:14:13,115 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 14:14:13,115 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 14:14:13,116 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 14:14:13,116 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 14:14:13,116 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 14:14:13,116 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 14:14:13,116 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 14:14:13,117 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 14:14:13,117 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 14:14:13,117 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 14:14:13,117 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 14:14:13,117 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 14:14:13,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 14:14:13,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 14:14:13,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 14:14:13,118 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 14:14:13,118 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 14:14:13,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 14:14:13,118 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 14:14:13,119 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 14:14:13,119 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 14:14:13,119 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 14:14:13,119 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 14:14:13,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 14:14:13,119 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 14:14:13,120 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 14:14:13,120 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 14:14:13,120 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 14:14:13,120 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 14:14:13,120 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 14:14:13,120 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 14:14:13,120 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 14:14:13,121 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 14:14:13,121 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 14:14:13,121 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 14:14:13,121 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 14:14:13,121 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 14:14:13,121 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 14:14:13,122 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 14:14:13,122 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 14:14:13,122 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 14:14:13,122 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 14:14:13,122 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 14:14:13,122 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 14:14:13,123 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 14:14:13,123 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 14:14:13,123 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 14:14:13,123 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 14:14:13,123 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 14:14:13,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 14:14:13,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 14:14:13,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 14:14:14,332 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 14:14:14,333 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 14:14:14,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:14:14 BoogieIcfgContainer [2020-09-25 14:14:14,341 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 14:14:14,342 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 14:14:14,342 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 14:14:14,346 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 14:14:14,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:14:12" (1/3) ... [2020-09-25 14:14:14,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e11c456 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:14:14, skipping insertion in model container [2020-09-25 14:14:14,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:14:12" (2/3) ... [2020-09-25 14:14:14,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e11c456 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:14:14, skipping insertion in model container [2020-09-25 14:14:14,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:14:14" (3/3) ... [2020-09-25 14:14:14,351 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product57.cil.c [2020-09-25 14:14:14,363 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 14:14:14,376 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 14:14:14,400 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 14:14:14,441 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 14:14:14,441 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 14:14:14,441 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 14:14:14,442 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 14:14:14,442 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 14:14:14,443 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 14:14:14,443 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 14:14:14,443 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 14:14:14,483 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states. [2020-09-25 14:14:14,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 14:14:14,501 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:14:14,503 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:14:14,503 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:14:14,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:14:14,512 INFO L82 PathProgramCache]: Analyzing trace with hash 324352486, now seen corresponding path program 1 times [2020-09-25 14:14:14,524 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:14:14,525 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [499353210] [2020-09-25 14:14:14,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:14:14,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:15,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:15,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:15,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:16,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:16,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:19,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:19,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 14:14:19,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 14:14:19,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-09-25 14:14:19,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:19,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:19,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:14:19,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 14:14:19,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-25 14:14:19,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 14:14:20,303 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:14:20,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:14:20,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:20,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:20,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:20,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:14:20,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:20,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 362 [2020-09-25 14:14:20,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:20,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:20,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:14:20,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:20,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 14:14:20,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:14:20,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:14:20,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:20,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:20,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:20,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:14:20,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:20,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 14:14:20,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:20,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:20,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:14:20,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:20,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:14:20,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:14:20,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:14:20,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:20,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:20,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:20,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:14:20,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:20,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:14:20,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:20,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:20,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:14:20,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:20,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:14:20,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 14:14:20,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:14:20,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:20,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:20,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:20,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:14:20,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:20,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 14:14:20,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:20,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:20,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:14:20,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:20,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:14:20,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:14:20,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:14:20,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:20,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:20,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:20,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:14:20,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:20,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 14:14:20,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:20,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:20,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:14:20,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:20,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:14:20,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 29 [2020-09-25 14:14:20,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 14:14:20,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:20,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:20,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:20,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:14:20,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:20,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:14:20,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:20,966 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:20,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:14:20,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:14:20,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:14:20,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:20,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 14:14:20,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:20,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:20,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:20,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:14:20,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:20,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:14:20,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:20,981 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:20,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:14:20,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:14:20,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:14:20,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:14:21,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:14:21,031 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [499353210] [2020-09-25 14:14:21,035 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:14:21,035 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 14:14:21,036 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118026426] [2020-09-25 14:14:21,045 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 14:14:21,046 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:14:21,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 14:14:21,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 14:14:21,078 INFO L87 Difference]: Start difference. First operand 329 states. Second operand 4 states. [2020-09-25 14:14:21,772 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:14:23,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:14:23,193 INFO L93 Difference]: Finished difference Result 525 states and 620 transitions. [2020-09-25 14:14:23,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 14:14:23,195 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 142 [2020-09-25 14:14:23,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:14:23,219 INFO L225 Difference]: With dead ends: 525 [2020-09-25 14:14:23,220 INFO L226 Difference]: Without dead ends: 321 [2020-09-25 14:14:23,226 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 14:14:23,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-09-25 14:14:23,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 278. [2020-09-25 14:14:23,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-09-25 14:14:23,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 301 transitions. [2020-09-25 14:14:23,353 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 301 transitions. Word has length 142 [2020-09-25 14:14:23,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:14:23,354 INFO L479 AbstractCegarLoop]: Abstraction has 278 states and 301 transitions. [2020-09-25 14:14:23,354 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 14:14:23,354 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 301 transitions. [2020-09-25 14:14:23,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-25 14:14:23,367 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:14:23,368 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] [2020-09-25 14:14:23,368 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 14:14:23,368 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:14:23,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:14:23,375 INFO L82 PathProgramCache]: Analyzing trace with hash 1427031856, now seen corresponding path program 1 times [2020-09-25 14:14:23,378 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:14:23,378 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1265634255] [2020-09-25 14:14:23,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:14:23,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:23,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:23,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:23,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:24,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:28,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:28,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-09-25 14:14:28,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 14:14:28,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-09-25 14:14:28,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:28,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:28,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 14:14:28,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 14:14:28,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 14:14:28,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:28,810 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:14:28,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:14:28,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:28,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:29,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:29,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:14:29,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:29,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 234 [2020-09-25 14:14:29,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:29,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:29,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:14:29,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:29,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 14:14:29,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:29,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:14:29,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:29,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:29,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:29,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:14:29,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:29,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:14:29,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:29,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:29,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:14:29,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:29,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:14:29,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:29,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:14:29,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:29,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:29,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:29,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:14:29,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:29,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:14:29,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:29,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:29,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:14:29,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:29,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:14:29,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:29,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:14:29,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:29,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:29,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:29,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:14:29,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:29,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 14:14:29,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:29,187 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:29,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:14:29,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:29,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:14:29,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:29,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:14:29,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:29,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:29,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:29,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:14:29,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:29,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:14:29,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:29,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:29,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:14:29,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:29,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:14:29,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:29,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 14:14:29,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:29,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:29,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:29,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:29,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 14:14:29,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:14:29,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 14:14:29,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:29,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:29,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:14:29,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 14:14:29,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 14:14:29,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:29,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:14:29,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:29,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:29,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:29,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 14:14:29,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:29,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 14:14:29,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:29,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:29,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:14:29,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 14:14:29,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 14:14:29,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:14:29,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:14:29,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:29,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:29,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:29,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:14:29,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:29,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:14:29,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:29,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:29,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:14:29,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:29,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:14:29,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:29,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 14:14:29,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:29,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:29,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:29,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:14:29,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:29,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:14:29,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:29,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:29,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:14:29,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:14:29,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:14:29,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:29,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 14:14:29,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:29,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:29,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:29,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:14:29,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:29,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:14:29,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:29,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:29,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:14:29,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:14:29,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:14:29,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:29,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:14:29,363 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1265634255] [2020-09-25 14:14:29,364 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:14:29,364 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 14:14:29,364 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311052360] [2020-09-25 14:14:29,367 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 14:14:29,368 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:14:29,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 14:14:29,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 14:14:29,368 INFO L87 Difference]: Start difference. First operand 278 states and 301 transitions. Second operand 6 states. [2020-09-25 14:14:29,893 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:14:31,275 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:14:32,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:14:32,812 INFO L93 Difference]: Finished difference Result 654 states and 782 transitions. [2020-09-25 14:14:32,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 14:14:32,817 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 156 [2020-09-25 14:14:32,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:14:32,832 INFO L225 Difference]: With dead ends: 654 [2020-09-25 14:14:32,832 INFO L226 Difference]: Without dead ends: 486 [2020-09-25 14:14:32,836 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-09-25 14:14:32,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2020-09-25 14:14:32,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 403. [2020-09-25 14:14:32,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 403 states. [2020-09-25 14:14:32,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 448 transitions. [2020-09-25 14:14:32,933 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 448 transitions. Word has length 156 [2020-09-25 14:14:32,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:14:32,933 INFO L479 AbstractCegarLoop]: Abstraction has 403 states and 448 transitions. [2020-09-25 14:14:32,933 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 14:14:32,934 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 448 transitions. [2020-09-25 14:14:32,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-09-25 14:14:32,936 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:14:32,937 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] [2020-09-25 14:14:32,937 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 14:14:32,937 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:14:32,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:14:32,937 INFO L82 PathProgramCache]: Analyzing trace with hash 2027625623, now seen corresponding path program 1 times [2020-09-25 14:14:32,938 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:14:32,938 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1794952664] [2020-09-25 14:14:32,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:14:32,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:33,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:34,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:34,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:35,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:36,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:38,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:38,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 228 [2020-09-25 14:14:38,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 14:14:38,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-09-25 14:14:38,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:38,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:38,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 14:14:38,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 14:14:38,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 14:14:38,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:38,464 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:14:38,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:14:38,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:38,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:38,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:38,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:14:38,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:38,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-09-25 14:14:38,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:38,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:38,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:14:38,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:38,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:14:38,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:38,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:14:38,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:38,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:38,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:38,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:14:38,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:38,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:14:38,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:38,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:38,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:14:38,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:38,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:14:38,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:38,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:14:38,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:38,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:38,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:38,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:14:38,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:38,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:14:38,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:38,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:38,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:14:38,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:38,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:14:38,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:38,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:14:38,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:38,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:38,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:38,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:14:38,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:38,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:14:38,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:38,685 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:38,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:14:38,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:38,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:14:38,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:14:38,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:14:38,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:38,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:38,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:38,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:14:38,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:38,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:14:38,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:38,695 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:38,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:14:38,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:38,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:14:38,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:14:38,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 14:14:38,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:38,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:38,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:38,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:38,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:38,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 14:14:38,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 14:14:38,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-09-25 14:14:38,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:38,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:38,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:14:38,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 14:14:38,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-09-25 14:14:38,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:38,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:14:38,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:38,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:38,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:38,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 14:14:38,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:38,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-25 14:14:38,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:38,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:38,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:14:38,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 14:14:38,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 14:14:38,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:38,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:14:38,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:38,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:39,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:39,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 14:14:39,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:39,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 14:14:39,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:39,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:39,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:14:39,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:39,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 14:14:39,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:14:39,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:14:39,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:39,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:39,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:39,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:14:39,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:39,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:14:39,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:39,020 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:39,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:14:39,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:39,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:14:39,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:39,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 14:14:39,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:39,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:39,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:39,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:14:39,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:39,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 14:14:39,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:39,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:39,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:14:39,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:39,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:14:39,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:39,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-09-25 14:14:39,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:39,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:39,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:39,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:14:39,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:39,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:14:39,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:39,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:39,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:14:39,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:39,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:14:39,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:39,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-25 14:14:39,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:39,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:39,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:39,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:14:39,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:39,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 14:14:39,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:39,062 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:39,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:14:39,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:39,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:14:39,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:39,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:14:39,133 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1794952664] [2020-09-25 14:14:39,133 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:14:39,133 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 14:14:39,134 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101642953] [2020-09-25 14:14:39,135 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 14:14:39,135 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:14:39,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 14:14:39,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 14:14:39,136 INFO L87 Difference]: Start difference. First operand 403 states and 448 transitions. Second operand 9 states. [2020-09-25 14:14:39,632 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:14:41,307 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:14:41,618 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:14:42,012 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:14:43,074 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:14:43,432 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 14:14:43,773 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:14:44,120 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 14:14:44,447 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 14:14:45,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:14:45,040 INFO L93 Difference]: Finished difference Result 479 states and 556 transitions. [2020-09-25 14:14:45,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 14:14:45,042 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 189 [2020-09-25 14:14:45,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:14:45,048 INFO L225 Difference]: With dead ends: 479 [2020-09-25 14:14:45,048 INFO L226 Difference]: Without dead ends: 476 [2020-09-25 14:14:45,050 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 26 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 14:14:45,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2020-09-25 14:14:45,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 403. [2020-09-25 14:14:45,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 403 states. [2020-09-25 14:14:45,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 447 transitions. [2020-09-25 14:14:45,119 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 447 transitions. Word has length 189 [2020-09-25 14:14:45,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:14:45,120 INFO L479 AbstractCegarLoop]: Abstraction has 403 states and 447 transitions. [2020-09-25 14:14:45,120 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 14:14:45,121 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 447 transitions. [2020-09-25 14:14:45,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-09-25 14:14:45,145 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:14:45,145 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:14:45,146 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 14:14:45,146 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:14:45,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:14:45,146 INFO L82 PathProgramCache]: Analyzing trace with hash -1842346287, now seen corresponding path program 1 times [2020-09-25 14:14:45,147 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:14:45,147 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [733924762] [2020-09-25 14:14:45,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:14:45,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:45,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:45,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:45,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:50,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:50,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 257 [2020-09-25 14:14:50,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 14:14:50,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-09-25 14:14:50,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:50,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:50,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 14:14:50,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 14:14:50,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 159 [2020-09-25 14:14:50,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:50,564 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:14:50,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:14:50,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:50,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:50,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:50,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:14:50,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:50,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 251 [2020-09-25 14:14:50,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:50,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:50,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:14:50,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:50,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 14:14:50,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:50,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:14:50,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:50,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:50,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:50,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:14:50,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:50,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:14:50,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:50,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:50,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:14:50,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:50,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:14:50,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:50,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:14:50,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:50,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:50,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:50,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:14:50,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:50,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:14:50,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:50,919 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:50,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:14:50,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:50,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:14:50,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:50,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:14:50,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:50,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:50,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:50,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:14:50,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:50,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:14:50,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:50,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:50,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:14:50,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:50,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:14:50,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:50,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:14:50,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:50,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:50,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:50,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:14:50,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:50,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:14:50,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:50,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:50,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:14:50,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:50,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:14:50,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:50,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 14:14:50,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:50,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:51,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:51,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:51,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:51,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 14:14:51,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 14:14:51,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 915 [2020-09-25 14:14:51,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:51,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:51,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:14:51,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:51,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 14:14:51,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:51,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:14:51,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:51,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:51,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:52,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:52,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 14:14:52,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:14:52,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 156 [2020-09-25 14:14:52,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:52,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:52,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:14:52,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 14:14:52,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 14:14:52,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:52,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:14:52,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:52,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:52,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:52,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 14:14:52,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:52,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-25 14:14:52,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:52,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:52,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:14:52,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:52,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 14:14:52,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:52,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:14:52,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:52,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:52,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:52,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:14:52,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:52,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:14:52,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:52,266 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:52,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:14:52,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:52,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:14:52,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:14:52,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 14:14:52,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:52,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:52,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:52,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 14:14:52,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:52,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 14:14:52,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:52,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:52,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:14:52,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 14:14:52,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:14:52,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:52,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 14:14:52,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:52,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:52,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:52,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 14:14:52,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:52,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:14:52,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:52,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:52,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:14:52,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:52,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:14:52,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:14:52,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 14:14:52,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:52,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:52,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:52,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:14:52,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:52,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:14:52,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:52,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:52,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:14:52,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:52,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:14:52,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:14:52,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 14:14:52,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:52,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:52,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:52,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 14:14:52,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:52,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:14:52,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:52,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:52,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:14:52,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:52,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:14:52,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:14:52,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-09-25 14:14:52,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:52,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:52,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:52,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:14:52,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:52,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 14:14:52,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:52,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:52,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:14:52,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:52,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:14:52,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:14:52,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-09-25 14:14:52,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:52,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:52,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:52,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:14:52,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:52,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:14:52,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:52,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:52,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:14:52,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:14:52,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:14:52,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:52,493 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 14:14:52,494 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [733924762] [2020-09-25 14:14:52,494 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:14:52,495 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-09-25 14:14:52,495 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605387720] [2020-09-25 14:14:52,497 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 14:14:52,497 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:14:52,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 14:14:52,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2020-09-25 14:14:52,498 INFO L87 Difference]: Start difference. First operand 403 states and 447 transitions. Second operand 14 states. [2020-09-25 14:14:53,090 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:14:54,393 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:14:54,702 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:14:55,017 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 14:14:55,362 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:14:55,736 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 14:14:56,063 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:14:56,507 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:14:56,809 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:14:57,128 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:14:57,425 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 14:14:57,735 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:14:58,059 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:14:58,427 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 14:14:58,775 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:14:59,310 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 186