/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 --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_product27.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 07:32:35,798 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:32:35,802 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:32:35,834 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:32:35,834 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:32:35,835 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:32:35,837 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:32:35,838 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:32:35,840 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:32:35,841 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:32:35,842 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:32:35,844 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:32:35,844 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:32:35,845 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:32:35,846 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:32:35,848 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:32:35,849 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:32:35,850 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:32:35,852 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:32:35,854 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:32:35,855 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:32:35,857 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:32:35,858 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:32:35,859 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:32:35,862 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:32:35,862 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:32:35,862 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:32:35,863 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:32:35,864 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:32:35,865 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:32:35,865 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:32:35,866 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:32:35,867 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:32:35,868 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:32:35,869 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:32:35,870 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:32:35,871 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:32:35,871 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:32:35,871 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:32:35,872 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:32:35,873 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:32:35,874 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 07:32:35,901 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:32:35,901 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:32:35,903 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:32:35,903 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:32:35,903 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:32:35,903 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:32:35,904 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:32:35,904 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:32:35,904 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:32:35,904 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:32:35,904 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:32:35,904 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:32:35,905 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:32:35,905 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:32:35,905 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:32:35,905 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:32:35,905 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:32:35,906 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:32:35,906 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:32:35,906 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:32:35,906 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:32:35,906 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:32:35,907 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:32:35,907 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:32:35,907 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:32:35,907 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:32:35,907 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:32:35,908 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:32:35,908 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:32:35,908 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=WIDESTAMONGSMALL;tolerance=0.8;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=WIDESTAMONGSMALL;tolerance=0.8;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=WIDESTAMONGSMALL;tolerance=0.8;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=WIDESTAMONGSMALL;tolerance=0.8;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=WIDESTAMONGSMALL;tolerance=0.8;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=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; [2020-09-25 07:32:36,395 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:32:36,412 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:32:36,416 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:32:36,418 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:32:36,419 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:32:36,420 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product27.cil.c [2020-09-25 07:32:36,493 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b6763a11c/24bbafafe21343dcabf7513b08f84884/FLAGb7d788c19 [2020-09-25 07:32:37,187 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:32:37,188 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product27.cil.c [2020-09-25 07:32:37,204 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b6763a11c/24bbafafe21343dcabf7513b08f84884/FLAGb7d788c19 [2020-09-25 07:32:37,400 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b6763a11c/24bbafafe21343dcabf7513b08f84884 [2020-09-25 07:32:37,412 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:32:37,418 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:32:37,420 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:32:37,420 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:32:37,424 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:32:37,426 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:32:37" (1/1) ... [2020-09-25 07:32:37,430 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ecced43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:32:37, skipping insertion in model container [2020-09-25 07:32:37,430 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:32:37" (1/1) ... [2020-09-25 07:32:37,441 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:32:37,493 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:32:37,925 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:32:38,037 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:32:38,125 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:32:38,163 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:32:38,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:32:38 WrapperNode [2020-09-25 07:32:38,164 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:32:38,164 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:32:38,165 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:32:38,165 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:32:38,179 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:32:38" (1/1) ... [2020-09-25 07:32:38,179 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:32:38" (1/1) ... [2020-09-25 07:32:38,200 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:32:38" (1/1) ... [2020-09-25 07:32:38,201 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:32:38" (1/1) ... [2020-09-25 07:32:38,235 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:32:38" (1/1) ... [2020-09-25 07:32:38,247 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:32:38" (1/1) ... [2020-09-25 07:32:38,252 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:32:38" (1/1) ... [2020-09-25 07:32:38,260 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:32:38,261 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:32:38,261 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:32:38,261 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:32:38,262 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:32:38" (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 07:32:38,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:32:38,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:32:38,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 07:32:38,340 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 07:32:38,340 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 07:32:38,340 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 07:32:38,340 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 07:32:38,341 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 07:32:38,341 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 07:32:38,341 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 07:32:38,341 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 07:32:38,341 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 07:32:38,342 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 07:32:38,342 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 07:32:38,342 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 07:32:38,342 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 07:32:38,342 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 07:32:38,343 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 07:32:38,343 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 07:32:38,343 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 07:32:38,343 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 07:32:38,343 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 07:32:38,344 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 07:32:38,344 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 07:32:38,344 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 07:32:38,344 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 07:32:38,344 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 07:32:38,344 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 07:32:38,345 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 07:32:38,345 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 07:32:38,345 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 07:32:38,345 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 07:32:38,345 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 07:32:38,346 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 07:32:38,346 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 07:32:38,346 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 07:32:38,346 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 07:32:38,346 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 07:32:38,346 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:32:38,347 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:32:38,347 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:32:38,347 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 07:32:38,347 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 07:32:38,347 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 07:32:38,348 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 07:32:38,348 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 07:32:38,348 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 07:32:38,348 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 07:32:38,348 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 07:32:38,348 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 07:32:38,349 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 07:32:38,349 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 07:32:38,349 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 07:32:38,349 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 07:32:38,349 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 07:32:38,350 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 07:32:38,350 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 07:32:38,350 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 07:32:38,350 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 07:32:38,350 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 07:32:38,350 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 07:32:38,351 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 07:32:38,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 07:32:38,351 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 07:32:38,351 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 07:32:38,351 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 07:32:38,351 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 07:32:38,352 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 07:32:38,352 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 07:32:38,352 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 07:32:38,352 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 07:32:38,352 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 07:32:38,352 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 07:32:38,353 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 07:32:38,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 07:32:38,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 07:32:38,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 07:32:38,353 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 07:32:38,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 07:32:38,353 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 07:32:38,354 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 07:32:38,354 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 07:32:38,354 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 07:32:38,354 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 07:32:38,354 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 07:32:38,354 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 07:32:38,355 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 07:32:38,355 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 07:32:38,355 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:32:38,355 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:32:38,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 07:32:38,355 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:32:39,496 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:32:39,496 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 07:32:39,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:32:39 BoogieIcfgContainer [2020-09-25 07:32:39,504 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:32:39,506 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:32:39,506 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:32:39,510 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:32:39,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:32:37" (1/3) ... [2020-09-25 07:32:39,511 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d56e118 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:32:39, skipping insertion in model container [2020-09-25 07:32:39,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:32:38" (2/3) ... [2020-09-25 07:32:39,512 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d56e118 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:32:39, skipping insertion in model container [2020-09-25 07:32:39,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:32:39" (3/3) ... [2020-09-25 07:32:39,514 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product27.cil.c [2020-09-25 07:32:39,527 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:32:39,539 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 07:32:39,564 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 07:32:39,597 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:32:39,597 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:32:39,598 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:32:39,598 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:32:39,598 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:32:39,598 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:32:39,598 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:32:39,598 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:32:39,627 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states. [2020-09-25 07:32:39,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 07:32:39,647 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:32:39,648 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 07:32:39,649 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:32:39,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:32:39,657 INFO L82 PathProgramCache]: Analyzing trace with hash 196536289, now seen corresponding path program 1 times [2020-09-25 07:32:39,669 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:32:39,670 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1784464414] [2020-09-25 07:32:39,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:32:40,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:40,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:40,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:41,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:45,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:45,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 07:32:45,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:32:45,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 07:32:45,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:45,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:45,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:32:45,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 07:32:45,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:32:45,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 30 [2020-09-25 07:32:45,436 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:32:45,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:32:45,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:45,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:45,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:45,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:32:45,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:32:45,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-09-25 07:32:45,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:45,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:45,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:32:45,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:32:45,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:32:45,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:32:45,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:32:45,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:45,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:45,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:45,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:32:45,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:32:45,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:32:45,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:45,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:45,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:32:45,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:32:45,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:32:45,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:32:45,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:32:45,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:45,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:45,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:45,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:32:45,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:32:45,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:32:45,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:45,650 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:45,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:32:45,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:32:45,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:32:45,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:32:45,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:32:45,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:45,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:45,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:45,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:32:45,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:32:45,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:32:45,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:45,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:45,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:32:45,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:32:45,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:32:45,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:32:45,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:32:45,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:45,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:45,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:45,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:32:45,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:32:45,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:32:45,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:45,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:45,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:32:45,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:32:45,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:32:45,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:32:45,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 07:32:45,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:45,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:45,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:45,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:32:45,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:32:45,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:32:45,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:45,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:45,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:32:45,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:32:45,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:32:45,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:32:45,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 07:32:45,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:45,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:45,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:45,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:32:45,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:32:45,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:32:45,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:45,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:45,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:32:45,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:32:45,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:32:45,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:32:45,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 07:32:45,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:45,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:45,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:45,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:32:45,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:32:45,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:32:45,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:45,695 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:45,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:32:45,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:32:45,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:32:45,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:32:45,737 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 07:32:45,739 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1784464414] [2020-09-25 07:32:45,741 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:32:45,741 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 07:32:45,742 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367354077] [2020-09-25 07:32:45,749 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 07:32:45,750 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:32:45,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 07:32:45,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:32:45,772 INFO L87 Difference]: Start difference. First operand 308 states. Second operand 3 states. [2020-09-25 07:32:47,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:32:47,168 INFO L93 Difference]: Finished difference Result 449 states and 536 transitions. [2020-09-25 07:32:47,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 07:32:47,171 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-25 07:32:47,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:32:47,201 INFO L225 Difference]: With dead ends: 449 [2020-09-25 07:32:47,202 INFO L226 Difference]: Without dead ends: 282 [2020-09-25 07:32:47,210 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:32:47,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-09-25 07:32:47,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 241. [2020-09-25 07:32:47,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2020-09-25 07:32:47,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 261 transitions. [2020-09-25 07:32:47,352 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 261 transitions. Word has length 153 [2020-09-25 07:32:47,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:32:47,353 INFO L479 AbstractCegarLoop]: Abstraction has 241 states and 261 transitions. [2020-09-25 07:32:47,353 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 07:32:47,353 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 261 transitions. [2020-09-25 07:32:47,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-25 07:32:47,360 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:32:47,360 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] [2020-09-25 07:32:47,361 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:32:47,361 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:32:47,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:32:47,362 INFO L82 PathProgramCache]: Analyzing trace with hash 738994654, now seen corresponding path program 1 times [2020-09-25 07:32:47,362 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:32:47,362 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1504774693] [2020-09-25 07:32:47,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:32:47,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:47,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:47,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:49,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:52,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:52,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 07:32:52,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:32:52,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 07:32:52,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:52,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:52,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:32:52,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 07:32:52,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 07:32:52,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:32:52,744 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:32:52,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:32:52,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:52,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:52,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:52,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:32:52,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:32:52,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-25 07:32:52,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:52,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:52,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:32:52,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:32:52,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:32:52,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:32:52,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:32:52,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:52,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:52,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:52,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:32:52,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:32:52,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:32:52,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:52,896 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:52,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:32:52,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:32:52,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:32:52,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:32:52,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:32:52,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:52,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:52,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:52,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:32:52,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:32:52,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:32:52,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:52,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:52,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:32:52,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:32:52,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:32:52,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:32:52,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:32:52,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:52,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:52,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:52,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:32:52,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:32:52,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:32:52,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:52,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:52,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:32:52,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:32:52,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:32:52,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:32:52,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:32:52,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:52,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:52,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:52,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:32:52,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:32:52,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:32:52,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:52,919 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:52,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:32:52,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:32:52,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:32:52,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:32:52,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-25 07:32:52,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:52,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:52,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:52,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:32:52,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:32:52,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:32:52,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:52,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:52,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:32:52,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:32:52,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:32:52,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:32:52,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 07:32:52,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:52,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:52,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:52,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:32:52,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:32:52,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:32:52,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:52,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:52,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:32:52,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:32:52,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:32:52,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:32:52,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-25 07:32:52,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:52,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:52,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:52,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:32:52,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:32:52,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:32:52,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:52,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:52,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:32:52,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:32:52,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:32:52,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:32:52,968 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 07:32:52,969 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1504774693] [2020-09-25 07:32:52,969 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:32:52,969 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 07:32:52,970 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769274402] [2020-09-25 07:32:52,972 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 07:32:52,972 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:32:52,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 07:32:52,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:32:52,973 INFO L87 Difference]: Start difference. First operand 241 states and 261 transitions. Second operand 4 states. [2020-09-25 07:32:53,644 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:32:54,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:32:54,511 INFO L93 Difference]: Finished difference Result 360 states and 403 transitions. [2020-09-25 07:32:54,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 07:32:54,512 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-25 07:32:54,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:32:54,516 INFO L225 Difference]: With dead ends: 360 [2020-09-25 07:32:54,516 INFO L226 Difference]: Without dead ends: 265 [2020-09-25 07:32:54,518 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:32:54,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2020-09-25 07:32:54,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 231. [2020-09-25 07:32:54,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231 states. [2020-09-25 07:32:54,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 248 transitions. [2020-09-25 07:32:54,579 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 248 transitions. Word has length 154 [2020-09-25 07:32:54,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:32:54,583 INFO L479 AbstractCegarLoop]: Abstraction has 231 states and 248 transitions. [2020-09-25 07:32:54,583 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 07:32:54,583 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 248 transitions. [2020-09-25 07:32:54,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-25 07:32:54,590 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:32:54,590 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] [2020-09-25 07:32:54,591 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:32:54,591 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:32:54,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:32:54,591 INFO L82 PathProgramCache]: Analyzing trace with hash 1017850899, now seen corresponding path program 1 times [2020-09-25 07:32:54,591 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:32:54,592 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [527150995] [2020-09-25 07:32:54,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:32:54,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:54,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:55,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:57,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:57,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-25 07:32:57,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:32:57,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3291 [2020-09-25 07:32:57,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:57,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:57,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 07:32:57,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 07:32:57,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-25 07:32:57,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:32:58,286 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:32:58,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:32:58,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:58,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:58,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:58,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:32:58,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:32:58,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 255 [2020-09-25 07:32:58,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:58,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:58,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:32:58,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:32:58,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 07:32:58,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:32:58,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:32:58,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:58,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:58,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:58,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:32:58,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:32:58,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:32:58,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:58,637 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:58,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:32:58,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:32:58,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:32:58,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:32:58,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:32:58,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:58,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:58,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:58,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:32:58,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:32:58,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:32:58,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:58,645 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:58,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:32:58,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:32:58,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:32:58,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:32:58,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:32:58,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:58,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:58,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:58,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:32:58,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:32:58,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 07:32:58,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:58,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:58,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:32:58,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:32:58,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:32:58,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:32:58,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:32:58,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:58,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:58,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:58,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:32:58,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:32:58,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:32:58,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:58,669 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:58,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:32:58,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:32:58,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:32:58,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:32:58,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 07:32:58,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:58,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:58,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:58,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:32:58,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:32:58,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:32:58,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:58,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:58,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:32:58,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:32:58,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:32:58,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:32:58,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 07:32:58,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:58,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:58,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:58,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:32:58,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:32:58,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:32:58,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:58,690 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:58,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:32:58,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:32:58,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:32:58,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:32:58,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-25 07:32:58,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:58,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:58,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:58,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:32:58,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:32:58,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:32:58,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:58,723 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:58,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:32:58,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:32:58,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:32:58,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:32:58,761 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 07:32:58,762 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [527150995] [2020-09-25 07:32:58,762 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:32:58,762 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 07:32:58,763 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599884384] [2020-09-25 07:32:58,764 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 07:32:58,764 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:32:58,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 07:32:58,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 07:32:58,765 INFO L87 Difference]: Start difference. First operand 231 states and 248 transitions. Second operand 8 states. [2020-09-25 07:32:59,242 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 07:33:00,871 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 07:33:01,223 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:33:01,578 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 07:33:01,888 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 07:33:02,218 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:33:02,524 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 07:33:02,815 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 07:33:03,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:33:03,471 INFO L93 Difference]: Finished difference Result 501 states and 581 transitions. [2020-09-25 07:33:03,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 07:33:03,471 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 163 [2020-09-25 07:33:03,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:33:03,476 INFO L225 Difference]: With dead ends: 501 [2020-09-25 07:33:03,476 INFO L226 Difference]: Without dead ends: 380 [2020-09-25 07:33:03,479 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-25 07:33:03,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-09-25 07:33:03,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 340. [2020-09-25 07:33:03,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2020-09-25 07:33:03,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 375 transitions. [2020-09-25 07:33:03,538 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 375 transitions. Word has length 163 [2020-09-25 07:33:03,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:33:03,538 INFO L479 AbstractCegarLoop]: Abstraction has 340 states and 375 transitions. [2020-09-25 07:33:03,538 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 07:33:03,539 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 375 transitions. [2020-09-25 07:33:03,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-09-25 07:33:03,542 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:33:03,542 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] [2020-09-25 07:33:03,542 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 07:33:03,543 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:33:03,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:33:03,543 INFO L82 PathProgramCache]: Analyzing trace with hash 217466552, now seen corresponding path program 1 times [2020-09-25 07:33:03,543 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:33:03,544 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1064828512] [2020-09-25 07:33:03,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:33:03,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:03,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:04,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:04,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-09-25 07:33:04,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:04,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1134 [2020-09-25 07:33:04,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:04,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:04,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:33:04,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 07:33:04,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 07:33:04,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:33:05,023 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:33:05,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:33:05,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:05,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:05,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:05,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:33:05,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:05,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 239 [2020-09-25 07:33:05,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:05,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:05,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:33:05,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:05,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 07:33:05,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:05,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:33:05,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:05,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:05,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:05,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:33:05,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:05,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:33:05,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:05,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:05,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:33:05,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:05,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:33:05,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:05,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:33:05,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:05,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:05,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:05,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:33:05,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:05,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:33:05,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:05,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:05,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:33:05,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:05,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:33:05,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:05,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:33:05,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:05,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:05,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:05,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:33:05,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:05,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 07:33:05,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:05,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:05,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:33:05,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:05,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:33:05,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:05,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:33:05,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:05,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:05,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:05,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:33:05,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:05,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:33:05,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:05,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:05,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:33:05,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:05,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:33:05,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:05,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 07:33:05,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:05,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:05,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:05,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 07:33:05,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:05,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:33:05,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:05,397 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:05,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:33:05,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:05,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 07:33:05,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:05,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 07:33:05,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:05,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:05,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:05,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:33:05,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:05,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:33:05,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:05,405 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:05,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:33:05,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:33:05,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:33:05,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:05,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-09-25 07:33:05,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:05,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:05,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:05,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:33:05,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:05,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:33:05,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:05,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:05,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:33:05,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:33:05,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:33:05,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:33:05,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-09-25 07:33:05,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:05,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:05,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:05,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:33:05,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:05,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:33:05,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:05,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:05,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:33:05,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:33:05,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:33:05,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:05,454 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 07:33:05,455 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1064828512] [2020-09-25 07:33:05,455 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:33:05,455 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 07:33:05,455 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299463202] [2020-09-25 07:33:05,456 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:33:05,456 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:33:05,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:33:05,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:33:05,457 INFO L87 Difference]: Start difference. First operand 340 states and 375 transitions. Second operand 5 states. [2020-09-25 07:33:05,958 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 07:33:07,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:33:07,853 INFO L93 Difference]: Finished difference Result 906 states and 1070 transitions. [2020-09-25 07:33:07,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 07:33:07,854 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 168 [2020-09-25 07:33:07,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:33:07,860 INFO L225 Difference]: With dead ends: 906 [2020-09-25 07:33:07,861 INFO L226 Difference]: Without dead ends: 676 [2020-09-25 07:33:07,862 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:33:07,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 676 states. [2020-09-25 07:33:07,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 676 to 571. [2020-09-25 07:33:07,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 571 states. [2020-09-25 07:33:07,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 647 transitions. [2020-09-25 07:33:07,956 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 647 transitions. Word has length 168 [2020-09-25 07:33:07,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:33:07,956 INFO L479 AbstractCegarLoop]: Abstraction has 571 states and 647 transitions. [2020-09-25 07:33:07,956 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:33:07,956 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 647 transitions. [2020-09-25 07:33:07,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-09-25 07:33:07,961 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:33:07,961 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] [2020-09-25 07:33:07,961 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 07:33:07,961 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:33:07,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:33:07,962 INFO L82 PathProgramCache]: Analyzing trace with hash 1541185143, now seen corresponding path program 1 times [2020-09-25 07:33:07,962 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:33:07,962 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [273048424] [2020-09-25 07:33:07,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:33:08,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 07:33:08,025 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 07:33:08,025 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 07:33:08,031 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 07:33:08,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 07:33:08 BoogieIcfgContainer [2020-09-25 07:33:08,059 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 07:33:08,061 INFO L168 Benchmark]: Toolchain (without parser) took 30647.16 ms. Allocated memory was 138.4 MB in the beginning and 623.9 MB in the end (delta: 485.5 MB). Free memory was 101.2 MB in the beginning and 330.7 MB in the end (delta: -229.4 MB). Peak memory consumption was 256.1 MB. Max. memory is 7.1 GB. [2020-09-25 07:33:08,062 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 07:33:08,063 INFO L168 Benchmark]: CACSL2BoogieTranslator took 744.59 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 100.6 MB in the beginning and 171.7 MB in the end (delta: -71.1 MB). Peak memory consumption was 29.2 MB. Max. memory is 7.1 GB. [2020-09-25 07:33:08,064 INFO L168 Benchmark]: Boogie Preprocessor took 95.95 ms. Allocated memory is still 201.9 MB. Free memory was 171.7 MB in the beginning and 167.5 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-09-25 07:33:08,065 INFO L168 Benchmark]: RCFGBuilder took 1243.70 ms. Allocated memory was 201.9 MB in the beginning and 232.8 MB in the end (delta: 30.9 MB). Free memory was 167.5 MB in the beginning and 178.6 MB in the end (delta: -11.1 MB). Peak memory consumption was 87.8 MB. Max. memory is 7.1 GB. [2020-09-25 07:33:08,066 INFO L168 Benchmark]: TraceAbstraction took 28553.07 ms. Allocated memory was 232.8 MB in the beginning and 623.9 MB in the end (delta: 391.1 MB). Free memory was 177.1 MB in the beginning and 330.7 MB in the end (delta: -153.5 MB). Peak memory consumption was 237.6 MB. Max. memory is 7.1 GB. [2020-09-25 07:33:08,070 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 744.59 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 100.6 MB in the beginning and 171.7 MB in the end (delta: -71.1 MB). Peak memory consumption was 29.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 95.95 ms. Allocated memory is still 201.9 MB. Free memory was 171.7 MB in the beginning and 167.5 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1243.70 ms. Allocated memory was 201.9 MB in the beginning and 232.8 MB in the end (delta: 30.9 MB). Free memory was 167.5 MB in the beginning and 178.6 MB in the end (delta: -11.1 MB). Peak memory consumption was 87.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 28553.07 ms. Allocated memory was 232.8 MB in the beginning and 623.9 MB in the end (delta: 391.1 MB). Free memory was 177.1 MB in the beginning and 330.7 MB in the end (delta: -153.5 MB). Peak memory consumption was 237.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 346]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L120] int pumpRunning = 0; [L121] int systemActive = 1; [L558] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L755] int waterLevel = 1; [L756] int methaneLevelCritical = 0; [L844] int cleanupTimeShifts = 4; [L917] int retValue_acc ; [L918] int tmp ; [L922] FCALL select_helpers() [L923] FCALL select_features() [L924] CALL, EXPR valid_product() [L380] int retValue_acc ; [L383] retValue_acc = 1 [L384] return (retValue_acc); [L924] RET, EXPR valid_product() [L924] tmp = valid_product() [L926] COND TRUE \read(tmp) [L928] FCALL setup() [L929] CALL runTest() [L911] CALL test() [L46] int splverifierCounter ; [L47] int tmp ; [L48] int tmp___0 ; [L49] int tmp___1 ; [L50] int tmp___2 ; [L53] splverifierCounter = 0 [L55] COND TRUE 1 [L57] COND TRUE splverifierCounter < 4 [L63] tmp = __VERIFIER_nondet_int() [L65] COND TRUE \read(tmp) [L67] CALL waterRise() [L773] COND TRUE waterLevel < 2 [L774] waterLevel = waterLevel + 1 [L67] RET waterRise() [L73] tmp___0 = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp___0)) [L83] tmp___2 = __VERIFIER_nondet_int() [L85] COND TRUE \read(tmp___2) [L100] CALL timeShift() [L128] COND FALSE !(\read(pumpRunning)) [L135] COND TRUE \read(systemActive) [L137] CALL processEnvironment() [L157] int tmp ; [L160] COND FALSE !(\read(pumpRunning)) [L175] FCALL processEnvironment__wrappee__base() [L137] RET processEnvironment() [L143] CALL __utac_acc__Specification3_spec__1() [L309] int tmp ; [L310] int tmp___0 ; [L311] int tmp___1 ; [L315] CALL, EXPR isMethaneLevelCritical() [L794] int retValue_acc ; [L797] retValue_acc = methaneLevelCritical [L798] return (retValue_acc); [L315] RET, EXPR isMethaneLevelCritical() [L315] tmp = isMethaneLevelCritical() [L317] COND FALSE !(\read(tmp)) [L321] CALL, EXPR getWaterLevel() [L826] int retValue_acc ; [L829] retValue_acc = waterLevel [L830] return (retValue_acc); [L321] RET, EXPR getWaterLevel() [L321] tmp___0 = getWaterLevel() [L323] COND TRUE tmp___0 == 2 [L325] CALL, EXPR isPumpRunning() [L227] int retValue_acc ; [L230] retValue_acc = pumpRunning [L231] return (retValue_acc); [L325] RET, EXPR isPumpRunning() [L325] tmp___1 = isPumpRunning() [L327] COND FALSE !(\read(tmp___1)) [L331] CALL __automaton_fail() [L346] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 624 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 28.4s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 10.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 896 SDtfs, 998 SDslu, 794 SDs, 0 SdLazy, 1858 SolverSat, 305 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 101 GetRequests, 77 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 3.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=571occurred in iteration=4, 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, 4 MinimizatonAttempts, 220 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 17.1s InterpolantComputationTime, 814 NumberOfCodeBlocks, 814 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 634 ConstructedInterpolants, 0 QuantifiedInterpolants, 250444 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...