/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=0.3 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product36.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 12:04:12,012 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 12:04:12,017 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 12:04:12,065 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 12:04:12,066 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 12:04:12,076 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 12:04:12,079 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 12:04:12,083 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 12:04:12,086 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 12:04:12,090 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 12:04:12,091 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 12:04:12,092 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 12:04:12,092 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 12:04:12,096 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 12:04:12,100 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 12:04:12,103 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 12:04:12,104 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 12:04:12,105 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 12:04:12,107 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 12:04:12,117 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 12:04:12,118 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 12:04:12,120 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 12:04:12,122 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 12:04:12,123 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 12:04:12,126 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 12:04:12,126 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 12:04:12,126 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 12:04:12,129 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 12:04:12,129 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 12:04:12,131 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 12:04:12,131 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 12:04:12,132 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 12:04:12,133 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 12:04:12,134 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 12:04:12,135 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 12:04:12,136 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 12:04:12,136 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 12:04:12,137 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 12:04:12,137 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 12:04:12,138 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 12:04:12,139 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 12:04:12,141 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 12:04:12,173 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 12:04:12,173 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 12:04:12,175 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 12:04:12,175 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 12:04:12,175 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 12:04:12,176 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 12:04:12,176 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 12:04:12,176 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 12:04:12,176 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 12:04:12,176 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 12:04:12,177 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 12:04:12,177 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 12:04:12,177 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 12:04:12,177 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 12:04:12,177 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 12:04:12,178 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 12:04:12,178 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 12:04:12,178 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 12:04:12,178 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 12:04:12,179 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 12:04:12,179 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 12:04:12,179 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 12:04:12,179 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 12:04:12,180 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 12:04:12,180 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 12:04:12,180 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 12:04:12,180 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 12:04:12,180 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 12:04:12,181 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 12:04:12,181 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=0.3;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=0.3;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=0.3;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=0.3;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=0.3;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=0.3;log-additional-information=true; [2020-09-25 12:04:12,626 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 12:04:12,644 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 12:04:12,649 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 12:04:12,651 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 12:04:12,651 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 12:04:12,652 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product36.cil.c [2020-09-25 12:04:12,738 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/947b83551/988328ff744940dbb4a5c67234bfe5b9/FLAGb1b71c090 [2020-09-25 12:04:13,391 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 12:04:13,392 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product36.cil.c [2020-09-25 12:04:13,414 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/947b83551/988328ff744940dbb4a5c67234bfe5b9/FLAGb1b71c090 [2020-09-25 12:04:13,690 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/947b83551/988328ff744940dbb4a5c67234bfe5b9 [2020-09-25 12:04:13,705 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 12:04:13,711 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 12:04:13,712 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 12:04:13,713 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 12:04:13,717 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 12:04:13,718 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:04:13" (1/1) ... [2020-09-25 12:04:13,722 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67e77f45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:13, skipping insertion in model container [2020-09-25 12:04:13,722 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:04:13" (1/1) ... [2020-09-25 12:04:13,729 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 12:04:13,782 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 12:04:14,271 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:04:14,286 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 12:04:14,389 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:04:14,424 INFO L208 MainTranslator]: Completed translation [2020-09-25 12:04:14,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:14 WrapperNode [2020-09-25 12:04:14,425 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 12:04:14,426 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 12:04:14,426 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 12:04:14,426 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 12:04:14,443 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:14" (1/1) ... [2020-09-25 12:04:14,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:14" (1/1) ... [2020-09-25 12:04:14,465 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:14" (1/1) ... [2020-09-25 12:04:14,466 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:14" (1/1) ... [2020-09-25 12:04:14,500 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:14" (1/1) ... [2020-09-25 12:04:14,519 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:14" (1/1) ... [2020-09-25 12:04:14,525 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:14" (1/1) ... [2020-09-25 12:04:14,553 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 12:04:14,554 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 12:04:14,554 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 12:04:14,554 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 12:04:14,556 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:14" (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 12:04:14,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 12:04:14,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 12:04:14,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 12:04:14,644 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 12:04:14,644 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 12:04:14,644 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 12:04:14,645 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 12:04:14,646 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 12:04:14,646 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 12:04:14,646 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 12:04:14,646 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 12:04:14,647 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 12:04:14,647 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 12:04:14,647 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 12:04:14,647 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 12:04:14,648 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 12:04:14,648 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 12:04:14,649 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 12:04:14,649 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 12:04:14,649 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 12:04:14,649 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 12:04:14,650 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 12:04:14,650 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 12:04:14,650 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 12:04:14,650 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 12:04:14,651 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 12:04:14,651 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 12:04:14,651 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 12:04:14,652 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 12:04:14,652 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 12:04:14,652 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 12:04:14,652 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 12:04:14,652 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 12:04:14,652 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 12:04:14,653 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 12:04:14,653 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 12:04:14,653 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 12:04:14,655 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 12:04:14,655 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 12:04:14,655 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 12:04:14,656 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 12:04:14,656 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 12:04:14,656 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 12:04:14,656 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 12:04:14,657 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 12:04:14,658 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 12:04:14,658 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 12:04:14,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 12:04:14,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 12:04:14,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 12:04:14,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 12:04:14,659 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 12:04:14,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 12:04:14,659 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 12:04:14,660 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 12:04:14,660 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 12:04:14,660 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 12:04:14,660 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 12:04:14,660 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 12:04:14,660 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 12:04:14,661 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 12:04:14,661 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 12:04:14,661 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 12:04:14,662 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 12:04:14,662 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 12:04:14,662 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 12:04:14,662 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 12:04:14,663 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 12:04:14,663 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 12:04:14,663 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 12:04:14,664 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 12:04:14,665 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 12:04:14,665 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 12:04:14,666 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 12:04:14,666 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 12:04:14,666 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 12:04:14,666 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 12:04:14,666 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 12:04:14,666 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 12:04:14,667 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 12:04:14,667 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 12:04:14,667 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 12:04:14,667 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 12:04:14,667 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 12:04:14,667 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 12:04:14,667 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 12:04:14,668 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 12:04:14,668 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 12:04:14,668 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 12:04:14,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 12:04:14,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 12:04:14,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 12:04:15,863 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 12:04:15,863 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 12:04:15,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:04:15 BoogieIcfgContainer [2020-09-25 12:04:15,874 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 12:04:15,879 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 12:04:15,879 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 12:04:15,883 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 12:04:15,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:04:13" (1/3) ... [2020-09-25 12:04:15,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75cf9464 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:04:15, skipping insertion in model container [2020-09-25 12:04:15,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:14" (2/3) ... [2020-09-25 12:04:15,885 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75cf9464 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:04:15, skipping insertion in model container [2020-09-25 12:04:15,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:04:15" (3/3) ... [2020-09-25 12:04:15,887 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product36.cil.c [2020-09-25 12:04:15,899 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 12:04:15,911 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 12:04:15,930 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 12:04:15,961 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 12:04:15,962 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 12:04:15,962 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 12:04:15,962 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 12:04:15,962 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 12:04:15,962 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 12:04:15,962 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 12:04:15,962 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 12:04:15,991 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states. [2020-09-25 12:04:16,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 12:04:16,011 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:04:16,012 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:04:16,013 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:04:16,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:04:16,020 INFO L82 PathProgramCache]: Analyzing trace with hash -578069207, now seen corresponding path program 1 times [2020-09-25 12:04:16,029 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:04:16,030 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [884968885] [2020-09-25 12:04:16,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:04:16,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:16,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:16,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:18,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:21,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:21,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 12:04:21,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 12:04:21,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 12:04:21,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:21,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:21,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 12:04:21,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 12:04:21,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-09-25 12:04:21,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 12:04:21,970 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 12:04:21,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:04:22,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:22,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:22,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:22,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 12:04:22,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:22,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 342 [2020-09-25 12:04:22,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:22,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:22,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:04:22,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:22,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 12:04:22,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:22,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 12:04:22,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:22,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:22,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:22,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:04:22,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:22,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:04:22,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:22,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:22,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:04:22,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:22,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:04:22,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:22,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 12:04:22,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:22,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:22,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:22,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:04:22,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:22,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 12:04:22,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:22,499 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:22,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:04:22,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:22,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:04:22,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:04:22,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 12:04:22,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:22,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:22,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:22,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:04:22,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:22,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 12:04:22,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:22,519 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:22,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:04:22,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:22,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:04:22,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:04:22,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 12:04:22,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:22,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:22,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:22,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:04:22,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:22,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 12:04:22,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:22,534 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:22,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:04:22,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:22,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:04:22,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:04:22,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 12:04:22,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:22,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:22,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:22,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:04:22,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:22,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 12:04:22,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:22,549 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:22,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:04:22,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:22,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:04:22,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:22,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 12:04:22,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:22,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:22,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:22,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:04:22,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:22,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 12:04:22,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:22,573 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:22,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:04:22,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:22,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:04:22,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:22,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 12:04:22,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:22,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:22,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:22,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:04:22,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:22,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:04:22,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:22,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:22,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:04:22,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:04:22,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:04:22,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:22,672 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 12:04:22,673 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [884968885] [2020-09-25 12:04:22,676 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:04:22,677 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 12:04:22,678 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983967680] [2020-09-25 12:04:22,687 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 12:04:22,688 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:04:22,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 12:04:22,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 12:04:22,720 INFO L87 Difference]: Start difference. First operand 308 states. Second operand 8 states. [2020-09-25 12:04:23,626 WARN L193 SmtUtils]: Spent 405.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 12:04:25,370 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:04:25,696 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:04:26,084 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:04:26,473 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 12:04:26,826 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:04:27,105 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:04:27,433 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:04:28,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:04:28,657 INFO L93 Difference]: Finished difference Result 620 states and 762 transitions. [2020-09-25 12:04:28,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 12:04:28,661 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 153 [2020-09-25 12:04:28,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:04:28,682 INFO L225 Difference]: With dead ends: 620 [2020-09-25 12:04:28,682 INFO L226 Difference]: Without dead ends: 429 [2020-09-25 12:04:28,689 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-25 12:04:28,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2020-09-25 12:04:28,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 382. [2020-09-25 12:04:28,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 382 states. [2020-09-25 12:04:28,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 429 transitions. [2020-09-25 12:04:28,855 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 429 transitions. Word has length 153 [2020-09-25 12:04:28,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:04:28,856 INFO L479 AbstractCegarLoop]: Abstraction has 382 states and 429 transitions. [2020-09-25 12:04:28,856 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 12:04:28,856 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 429 transitions. [2020-09-25 12:04:28,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-09-25 12:04:28,864 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:04:28,864 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] [2020-09-25 12:04:28,865 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 12:04:28,865 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:04:28,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:04:28,866 INFO L82 PathProgramCache]: Analyzing trace with hash 506010603, now seen corresponding path program 1 times [2020-09-25 12:04:28,866 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:04:28,866 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1207001356] [2020-09-25 12:04:28,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:04:28,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:28,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:29,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:29,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:33,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:33,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:33,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-25 12:04:33,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 12:04:33,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-09-25 12:04:33,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:33,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:33,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:04:33,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 139 [2020-09-25 12:04:33,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 12:04:33,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:34,305 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 12:04:34,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:04:34,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:34,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:34,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:34,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 12:04:34,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:34,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-09-25 12:04:34,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:34,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:34,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:04:34,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:34,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:04:34,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:34,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 12:04:34,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:34,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:34,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:34,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:04:34,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:34,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:04:34,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:34,510 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:34,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:04:34,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:34,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:04:34,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:34,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 12:04:34,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:34,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:34,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:34,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:04:34,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:34,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:04:34,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:34,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:34,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:04:34,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:34,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:04:34,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:34,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 12:04:34,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:34,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:34,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:34,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:04:34,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:34,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:04:34,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:34,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:34,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:04:34,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:34,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:04:34,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:34,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 12:04:34,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:34,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:34,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:34,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:04:34,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:34,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:04:34,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:34,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:34,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:04:34,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:34,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:04:34,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:34,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-25 12:04:34,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:34,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:34,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:34,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 12:04:34,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:34,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 12:04:34,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:34,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:34,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:04:34,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:34,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 12:04:34,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:34,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 12:04:34,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:34,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:34,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:34,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:04:34,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:34,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:04:34,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:34,568 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:34,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:04:34,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:34,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:04:34,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:34,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 12:04:34,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:34,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:34,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:34,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:04:34,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:34,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:04:34,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:34,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:34,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:04:34,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:34,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:04:34,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:34,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 12:04:34,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:34,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:34,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:34,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:04:34,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:34,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 12:04:34,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:34,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:34,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:04:34,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:34,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:04:34,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:34,698 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 12:04:34,699 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1207001356] [2020-09-25 12:04:34,699 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:04:34,699 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 12:04:34,700 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484022300] [2020-09-25 12:04:34,702 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 12:04:34,702 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:04:34,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 12:04:34,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 12:04:34,703 INFO L87 Difference]: Start difference. First operand 382 states and 429 transitions. Second operand 9 states. [2020-09-25 12:04:35,674 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 12:04:35,961 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-09-25 12:04:36,812 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2020-09-25 12:04:38,267 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-25 12:04:38,662 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:04:38,986 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 12:04:39,277 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:04:39,667 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 12:04:40,027 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:04:41,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:04:41,454 INFO L93 Difference]: Finished difference Result 912 states and 1121 transitions. [2020-09-25 12:04:41,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 12:04:41,454 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 159 [2020-09-25 12:04:41,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:04:41,465 INFO L225 Difference]: With dead ends: 912 [2020-09-25 12:04:41,465 INFO L226 Difference]: Without dead ends: 590 [2020-09-25 12:04:41,471 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=107, Invalid=313, Unknown=0, NotChecked=0, Total=420 [2020-09-25 12:04:41,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2020-09-25 12:04:41,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 532. [2020-09-25 12:04:41,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 532 states. [2020-09-25 12:04:41,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 592 transitions. [2020-09-25 12:04:41,549 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 592 transitions. Word has length 159 [2020-09-25 12:04:41,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:04:41,549 INFO L479 AbstractCegarLoop]: Abstraction has 532 states and 592 transitions. [2020-09-25 12:04:41,550 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 12:04:41,550 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 592 transitions. [2020-09-25 12:04:41,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-25 12:04:41,554 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:04:41,554 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:04:41,554 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 12:04:41,554 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:04:41,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:04:41,555 INFO L82 PathProgramCache]: Analyzing trace with hash -1179228494, now seen corresponding path program 1 times [2020-09-25 12:04:41,555 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:04:41,555 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [235128808] [2020-09-25 12:04:41,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:04:41,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:41,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:42,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:42,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-09-25 12:04:42,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:42,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 406 [2020-09-25 12:04:42,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:42,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:42,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:04:42,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-25 12:04:42,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 12:04:42,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:04:42,367 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 12:04:42,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:04:42,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:42,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:42,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:42,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 12:04:42,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:42,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-09-25 12:04:42,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:42,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:42,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:04:42,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:42,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:04:42,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:42,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 12:04:42,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:42,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:42,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:42,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:04:42,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:42,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:04:42,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:42,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:42,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:04:42,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:42,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:04:42,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:42,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 12:04:42,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:42,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:42,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:42,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:04:42,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:42,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:04:42,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:42,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:42,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:04:42,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:42,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:04:42,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:42,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 12:04:42,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:42,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:42,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:42,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:04:42,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:42,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 12:04:42,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:42,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:42,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:04:42,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:42,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:04:42,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:42,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 12:04:42,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:42,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:42,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:42,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:04:42,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:42,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:04:42,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:42,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:42,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:04:42,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:42,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:04:42,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:42,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 12:04:42,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:42,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:42,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:42,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 12:04:42,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:42,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 12:04:42,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:42,600 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:42,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:04:42,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:42,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:04:42,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:42,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 12:04:42,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:42,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:42,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:42,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 12:04:42,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:42,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:04:42,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:42,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:42,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:04:42,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:04:42,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 12:04:42,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:42,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 12:04:42,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:42,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:42,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:42,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:04:42,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:42,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:04:42,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:42,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:42,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:04:42,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:04:42,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:04:42,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:42,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 12:04:42,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:42,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:42,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:42,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:04:42,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:42,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:04:42,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:42,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:42,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:04:42,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:04:42,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:04:42,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:42,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-25 12:04:42,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:04:42,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:04:42,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:04:42,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:04:42,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:04:42,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:04:42,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:04:42,650 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:04:42,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:04:42,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:04:42,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:04:42,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:04:42,706 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 12:04:42,707 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [235128808] [2020-09-25 12:04:42,707 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:04:42,707 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 12:04:42,708 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623202616] [2020-09-25 12:04:42,709 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 12:04:42,709 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:04:42,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 12:04:42,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 12:04:42,710 INFO L87 Difference]: Start difference. First operand 532 states and 592 transitions. Second operand 6 states. [2020-09-25 12:04:43,449 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 12:04:45,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:04:45,522 INFO L93 Difference]: Finished difference Result 1515 states and 1799 transitions. [2020-09-25 12:04:45,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 12:04:45,523 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 172 [2020-09-25 12:04:45,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:04:45,532 INFO L225 Difference]: With dead ends: 1515 [2020-09-25 12:04:45,532 INFO L226 Difference]: Without dead ends: 1093 [2020-09-25 12:04:45,534 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 12:04:45,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1093 states. [2020-09-25 12:04:45,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1093 to 907. [2020-09-25 12:04:45,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 907 states. [2020-09-25 12:04:45,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 907 states to 907 states and 1020 transitions. [2020-09-25 12:04:45,661 INFO L78 Accepts]: Start accepts. Automaton has 907 states and 1020 transitions. Word has length 172 [2020-09-25 12:04:45,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:04:45,662 INFO L479 AbstractCegarLoop]: Abstraction has 907 states and 1020 transitions. [2020-09-25 12:04:45,662 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 12:04:45,662 INFO L276 IsEmpty]: Start isEmpty. Operand 907 states and 1020 transitions. [2020-09-25 12:04:45,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-25 12:04:45,668 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:04:45,668 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:04:45,668 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 12:04:45,669 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:04:45,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:04:45,669 INFO L82 PathProgramCache]: Analyzing trace with hash -254126211, now seen corresponding path program 1 times [2020-09-25 12:04:45,669 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:04:45,670 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1527684420] [2020-09-25 12:04:45,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:04:45,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 12:04:45,740 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 12:04:45,740 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 12:04:45,745 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 12:04:45,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 12:04:45 BoogieIcfgContainer [2020-09-25 12:04:45,774 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 12:04:45,777 INFO L168 Benchmark]: Toolchain (without parser) took 32069.40 ms. Allocated memory was 141.0 MB in the beginning and 607.1 MB in the end (delta: 466.1 MB). Free memory was 103.3 MB in the beginning and 483.8 MB in the end (delta: -380.5 MB). Peak memory consumption was 85.6 MB. Max. memory is 7.1 GB. [2020-09-25 12:04:45,777 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 12:04:45,778 INFO L168 Benchmark]: CACSL2BoogieTranslator took 713.45 ms. Allocated memory was 141.0 MB in the beginning and 205.0 MB in the end (delta: 64.0 MB). Free memory was 102.7 MB in the beginning and 172.1 MB in the end (delta: -69.4 MB). Peak memory consumption was 23.9 MB. Max. memory is 7.1 GB. [2020-09-25 12:04:45,779 INFO L168 Benchmark]: Boogie Preprocessor took 127.11 ms. Allocated memory is still 205.0 MB. Free memory was 172.1 MB in the beginning and 168.1 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-09-25 12:04:45,780 INFO L168 Benchmark]: RCFGBuilder took 1320.75 ms. Allocated memory was 205.0 MB in the beginning and 233.8 MB in the end (delta: 28.8 MB). Free memory was 168.1 MB in the beginning and 170.5 MB in the end (delta: -2.4 MB). Peak memory consumption was 79.9 MB. Max. memory is 7.1 GB. [2020-09-25 12:04:45,781 INFO L168 Benchmark]: TraceAbstraction took 29895.42 ms. Allocated memory was 233.8 MB in the beginning and 607.1 MB in the end (delta: 373.3 MB). Free memory was 170.5 MB in the beginning and 483.8 MB in the end (delta: -313.3 MB). Peak memory consumption was 60.0 MB. Max. memory is 7.1 GB. [2020-09-25 12:04:45,785 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 713.45 ms. Allocated memory was 141.0 MB in the beginning and 205.0 MB in the end (delta: 64.0 MB). Free memory was 102.7 MB in the beginning and 172.1 MB in the end (delta: -69.4 MB). Peak memory consumption was 23.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 127.11 ms. Allocated memory is still 205.0 MB. Free memory was 172.1 MB in the beginning and 168.1 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1320.75 ms. Allocated memory was 205.0 MB in the beginning and 233.8 MB in the end (delta: 28.8 MB). Free memory was 168.1 MB in the beginning and 170.5 MB in the end (delta: -2.4 MB). Peak memory consumption was 79.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 29895.42 ms. Allocated memory was 233.8 MB in the beginning and 607.1 MB in the end (delta: 373.3 MB). Free memory was 170.5 MB in the beginning and 483.8 MB in the end (delta: -313.3 MB). Peak memory consumption was 60.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L218] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L426] int pumpRunning = 0; [L427] int systemActive = 1; [L675] int waterLevel = 1; [L676] int methaneLevelCritical = 0; [L769] int cleanupTimeShifts = 4; [L845] int retValue_acc ; [L846] int tmp ; [L850] FCALL select_helpers() [L851] FCALL select_features() [L852] CALL, EXPR valid_product() [L894] int retValue_acc ; [L897] retValue_acc = 1 [L898] return (retValue_acc); [L852] RET, EXPR valid_product() [L852] tmp = valid_product() [L854] COND TRUE \read(tmp) [L856] FCALL setup() [L857] CALL runTest() [L836] CALL test() [L606] int splverifierCounter ; [L607] int tmp ; [L608] int tmp___0 ; [L609] int tmp___1 ; [L610] int tmp___2 ; [L613] splverifierCounter = 0 [L615] COND TRUE 1 [L617] COND TRUE splverifierCounter < 4 [L623] tmp = __VERIFIER_nondet_int() [L625] COND TRUE \read(tmp) [L627] CALL waterRise() [L693] COND TRUE waterLevel < 2 [L694] waterLevel = waterLevel + 1 [L627] RET waterRise() [L633] tmp___0 = __VERIFIER_nondet_int() [L635] COND FALSE !(\read(tmp___0)) [L643] tmp___2 = __VERIFIER_nondet_int() [L645] COND FALSE !(\read(tmp___2)) [L651] tmp___1 = __VERIFIER_nondet_int() [L653] COND TRUE \read(tmp___1) [L655] CALL stopSystem() [L582] COND FALSE !(\read(pumpRunning)) [L589] systemActive = 0 [L655] RET stopSystem() [L662] CALL timeShift() [L434] COND FALSE !(\read(pumpRunning)) [L441] COND FALSE !(\read(systemActive)) [L449] CALL __utac_acc__Specification3_spec__1() [L904] int tmp ; [L905] int tmp___0 ; [L906] int tmp___1 ; [L910] CALL, EXPR isMethaneLevelCritical() [L714] int retValue_acc ; [L717] retValue_acc = methaneLevelCritical [L718] return (retValue_acc); [L910] RET, EXPR isMethaneLevelCritical() [L910] tmp = isMethaneLevelCritical() [L912] COND FALSE !(\read(tmp)) [L916] CALL, EXPR getWaterLevel() [L746] int retValue_acc ; [L749] retValue_acc = waterLevel [L750] return (retValue_acc); [L916] RET, EXPR getWaterLevel() [L916] tmp___0 = getWaterLevel() [L918] COND TRUE tmp___0 == 2 [L920] CALL, EXPR isPumpRunning() [L515] int retValue_acc ; [L518] retValue_acc = pumpRunning [L519] return (retValue_acc); [L920] RET, EXPR isPumpRunning() [L920] tmp___1 = isPumpRunning() [L922] COND FALSE !(\read(tmp___1)) [L926] CALL __automaton_fail() [L44] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 622 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 29.7s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 15.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 895 SDtfs, 1563 SDslu, 1556 SDs, 0 SdLazy, 3426 SolverSat, 530 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 110 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 6.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=907occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 3 MinimizatonAttempts, 291 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 12.9s InterpolantComputationTime, 661 NumberOfCodeBlocks, 661 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 481 ConstructedInterpolants, 0 QuantifiedInterpolants, 199868 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...