/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product28.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 10:59:04,757 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 10:59:04,761 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 10:59:04,805 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 10:59:04,805 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 10:59:04,812 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 10:59:04,815 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 10:59:04,818 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 10:59:04,821 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 10:59:04,823 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 10:59:04,824 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 10:59:04,825 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 10:59:04,826 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 10:59:04,828 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 10:59:04,831 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 10:59:04,833 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 10:59:04,834 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 10:59:04,835 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 10:59:04,837 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 10:59:04,845 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 10:59:04,847 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 10:59:04,848 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 10:59:04,849 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 10:59:04,850 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 10:59:04,866 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 10:59:04,866 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 10:59:04,866 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 10:59:04,870 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 10:59:04,871 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 10:59:04,872 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 10:59:04,872 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 10:59:04,875 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 10:59:04,876 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 10:59:04,879 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 10:59:04,880 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 10:59:04,880 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 10:59:04,882 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 10:59:04,882 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 10:59:04,882 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 10:59:04,883 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 10:59:04,884 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 10:59:04,885 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 10:59:04,926 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 10:59:04,926 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 10:59:04,928 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 10:59:04,929 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 10:59:04,929 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 10:59:04,929 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 10:59:04,930 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 10:59:04,930 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 10:59:04,930 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 10:59:04,930 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 10:59:04,931 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 10:59:04,931 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 10:59:04,931 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 10:59:04,932 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 10:59:04,932 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 10:59:04,932 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 10:59:04,932 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 10:59:04,933 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 10:59:04,933 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 10:59:04,933 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 10:59:04,933 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 10:59:04,933 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 10:59:04,934 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 10:59:04,934 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 10:59:04,934 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 10:59:04,934 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 10:59:04,934 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 10:59:04,935 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 10:59:04,935 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 10:59:04,935 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; [2020-09-25 10:59:05,394 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 10:59:05,417 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 10:59:05,424 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 10:59:05,426 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 10:59:05,426 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 10:59:05,427 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product28.cil.c [2020-09-25 10:59:05,505 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aa525f271/f1c4e0b50a124920b290a33f44dcf168/FLAG1b306a154 [2020-09-25 10:59:06,118 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 10:59:06,119 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product28.cil.c [2020-09-25 10:59:06,134 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aa525f271/f1c4e0b50a124920b290a33f44dcf168/FLAG1b306a154 [2020-09-25 10:59:06,344 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aa525f271/f1c4e0b50a124920b290a33f44dcf168 [2020-09-25 10:59:06,358 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 10:59:06,363 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 10:59:06,364 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 10:59:06,364 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 10:59:06,369 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 10:59:06,370 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:59:06" (1/1) ... [2020-09-25 10:59:06,374 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@af20ea9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:59:06, skipping insertion in model container [2020-09-25 10:59:06,374 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:59:06" (1/1) ... [2020-09-25 10:59:06,384 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 10:59:06,450 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 10:59:06,941 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:59:06,958 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 10:59:07,082 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:59:07,128 INFO L208 MainTranslator]: Completed translation [2020-09-25 10:59:07,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:59:07 WrapperNode [2020-09-25 10:59:07,129 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 10:59:07,130 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 10:59:07,130 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 10:59:07,130 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 10:59:07,143 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:59:07" (1/1) ... [2020-09-25 10:59:07,144 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:59:07" (1/1) ... [2020-09-25 10:59:07,164 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:59:07" (1/1) ... [2020-09-25 10:59:07,165 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:59:07" (1/1) ... [2020-09-25 10:59:07,194 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:59:07" (1/1) ... [2020-09-25 10:59:07,206 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:59:07" (1/1) ... [2020-09-25 10:59:07,211 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:59:07" (1/1) ... [2020-09-25 10:59:07,219 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 10:59:07,220 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 10:59:07,220 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 10:59:07,220 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 10:59:07,221 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:59:07" (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 10:59:07,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 10:59:07,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 10:59:07,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 10:59:07,330 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 10:59:07,330 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 10:59:07,330 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 10:59:07,331 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 10:59:07,331 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 10:59:07,331 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 10:59:07,331 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 10:59:07,332 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 10:59:07,332 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 10:59:07,332 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 10:59:07,332 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 10:59:07,332 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 10:59:07,333 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 10:59:07,333 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 10:59:07,333 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 10:59:07,333 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 10:59:07,336 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 10:59:07,336 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 10:59:07,336 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 10:59:07,336 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 10:59:07,336 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 10:59:07,337 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 10:59:07,337 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 10:59:07,337 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 10:59:07,337 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 10:59:07,337 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 10:59:07,337 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 10:59:07,338 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 10:59:07,338 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 10:59:07,338 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 10:59:07,338 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 10:59:07,338 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 10:59:07,338 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 10:59:07,339 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 10:59:07,339 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 10:59:07,339 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 10:59:07,339 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 10:59:07,339 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 10:59:07,339 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 10:59:07,340 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 10:59:07,340 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 10:59:07,340 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 10:59:07,340 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 10:59:07,340 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 10:59:07,340 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 10:59:07,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 10:59:07,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 10:59:07,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 10:59:07,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 10:59:07,343 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 10:59:07,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 10:59:07,343 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 10:59:07,343 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 10:59:07,344 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 10:59:07,344 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 10:59:07,344 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 10:59:07,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 10:59:07,344 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 10:59:07,344 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 10:59:07,345 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 10:59:07,345 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 10:59:07,345 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 10:59:07,345 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 10:59:07,346 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 10:59:07,346 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 10:59:07,346 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 10:59:07,347 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 10:59:07,347 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 10:59:07,348 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 10:59:07,349 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 10:59:07,349 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 10:59:07,349 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 10:59:07,349 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 10:59:07,349 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 10:59:07,349 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 10:59:07,349 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 10:59:07,350 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 10:59:07,350 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 10:59:07,350 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 10:59:07,350 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 10:59:07,350 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 10:59:07,350 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 10:59:07,350 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 10:59:07,351 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 10:59:07,351 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 10:59:07,351 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 10:59:07,351 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 10:59:07,351 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 10:59:07,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 10:59:07,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 10:59:07,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 10:59:08,522 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 10:59:08,522 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 10:59:08,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:59:08 BoogieIcfgContainer [2020-09-25 10:59:08,529 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 10:59:08,530 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 10:59:08,530 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 10:59:08,534 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 10:59:08,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 10:59:06" (1/3) ... [2020-09-25 10:59:08,535 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cf5d20c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:59:08, skipping insertion in model container [2020-09-25 10:59:08,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:59:07" (2/3) ... [2020-09-25 10:59:08,536 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cf5d20c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:59:08, skipping insertion in model container [2020-09-25 10:59:08,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:59:08" (3/3) ... [2020-09-25 10:59:08,538 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product28.cil.c [2020-09-25 10:59:08,550 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 10:59:08,562 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 10:59:08,585 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 10:59:08,618 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 10:59:08,619 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 10:59:08,619 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 10:59:08,619 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 10:59:08,619 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 10:59:08,619 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 10:59:08,619 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 10:59:08,619 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 10:59:08,649 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states. [2020-09-25 10:59:08,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 10:59:08,667 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:59:08,668 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:59:08,669 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:59:08,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:59:08,677 INFO L82 PathProgramCache]: Analyzing trace with hash 2129634346, now seen corresponding path program 1 times [2020-09-25 10:59:08,690 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:59:08,690 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1979466281] [2020-09-25 10:59:08,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:59:09,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:09,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:09,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:10,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:12,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:14,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:14,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 10:59:14,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 10:59:14,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-09-25 10:59:14,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:14,082 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:14,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 10:59:14,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 10:59:14,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 10:59:14,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 10:59:14,585 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 10:59:14,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:59:14,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:14,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:14,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:14,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 10:59:14,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:14,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 352 [2020-09-25 10:59:14,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:14,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:14,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:14,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:14,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 10:59:14,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:59:15,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 10:59:15,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:15,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:15,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:15,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:59:15,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:15,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:59:15,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:15,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:15,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:15,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:15,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:59:15,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:15,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 10:59:15,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:15,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:15,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:15,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:59:15,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:15,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:59:15,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:15,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:15,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:15,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:15,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:59:15,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:59:15,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 10:59:15,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:15,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:15,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:15,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:59:15,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:15,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 10:59:15,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:15,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:15,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:15,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:15,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:59:15,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:59:15,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 10:59:15,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:15,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:15,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:15,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:59:15,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:15,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 10:59:15,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:15,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:15,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:15,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:15,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:59:15,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:59:15,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 10:59:15,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:15,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:15,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:15,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:59:15,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:15,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 10:59:15,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:15,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:15,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:59:15,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:15,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:59:15,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:59:15,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 10:59:15,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:15,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:15,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:15,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:59:15,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:15,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 10:59:15,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:15,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:15,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:59:15,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:59:15,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:59:15,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:15,355 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 10:59:15,356 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1979466281] [2020-09-25 10:59:15,358 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:59:15,358 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 10:59:15,359 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479323291] [2020-09-25 10:59:15,367 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 10:59:15,368 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:59:15,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 10:59:15,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 10:59:15,390 INFO L87 Difference]: Start difference. First operand 285 states. Second operand 9 states. [2020-09-25 10:59:16,053 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:59:17,056 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:59:17,727 WARN L193 SmtUtils]: Spent 581.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192 [2020-09-25 10:59:18,136 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:59:18,555 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:59:18,915 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 10:59:19,196 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 10:59:19,531 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:59:20,148 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:59:21,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:59:21,606 INFO L93 Difference]: Finished difference Result 572 states and 707 transitions. [2020-09-25 10:59:21,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 10:59:21,609 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 142 [2020-09-25 10:59:21,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:59:21,631 INFO L225 Difference]: With dead ends: 572 [2020-09-25 10:59:21,631 INFO L226 Difference]: Without dead ends: 398 [2020-09-25 10:59:21,638 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2020-09-25 10:59:21,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2020-09-25 10:59:21,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 353. [2020-09-25 10:59:21,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 353 states. [2020-09-25 10:59:21,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 400 transitions. [2020-09-25 10:59:21,782 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 400 transitions. Word has length 142 [2020-09-25 10:59:21,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:59:21,784 INFO L479 AbstractCegarLoop]: Abstraction has 353 states and 400 transitions. [2020-09-25 10:59:21,784 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 10:59:21,784 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 400 transitions. [2020-09-25 10:59:21,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 10:59:21,790 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:59:21,790 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] [2020-09-25 10:59:21,791 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 10:59:21,791 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:59:21,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:59:21,792 INFO L82 PathProgramCache]: Analyzing trace with hash -1644997283, now seen corresponding path program 1 times [2020-09-25 10:59:21,792 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:59:21,793 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2061798160] [2020-09-25 10:59:21,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:59:21,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:21,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:22,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:23,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:26,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:26,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 10:59:26,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 10:59:26,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-09-25 10:59:26,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:26,930 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:26,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 10:59:26,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 10:59:26,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 10:59:26,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:27,300 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 10:59:27,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:59:27,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:27,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:27,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:27,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 10:59:27,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:27,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 242 [2020-09-25 10:59:27,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:27,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:27,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:27,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:27,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 10:59:27,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:27,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 10:59:27,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:27,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:27,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:27,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:59:27,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:27,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:59:27,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:27,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:27,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:27,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:27,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:59:27,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:27,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 10:59:27,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:27,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:27,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:27,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:59:27,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:27,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:59:27,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:27,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:27,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:27,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:27,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:59:27,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:27,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 10:59:27,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:27,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:27,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:27,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:59:27,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:27,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 10:59:27,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:27,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:27,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:27,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:27,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:59:27,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:27,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 10:59:27,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:27,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:27,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:27,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:59:27,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:27,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:59:27,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:27,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:27,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:27,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:27,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:59:27,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:27,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-25 10:59:27,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:27,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:27,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:27,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:59:27,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:27,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:59:27,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:27,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:27,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:27,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:27,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 10:59:27,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:27,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 10:59:27,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:27,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:27,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:27,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:59:27,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:27,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:59:27,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:27,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:27,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:59:27,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:59:27,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:59:27,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:27,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 10:59:27,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:27,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:27,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:27,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:59:27,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:27,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:59:27,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:27,685 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:27,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:59:27,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:59:27,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:59:27,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:27,713 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 10:59:27,713 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2061798160] [2020-09-25 10:59:27,714 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:59:27,714 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 10:59:27,714 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273974410] [2020-09-25 10:59:27,716 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 10:59:27,717 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:59:27,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 10:59:27,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 10:59:27,717 INFO L87 Difference]: Start difference. First operand 353 states and 400 transitions. Second operand 5 states. [2020-09-25 10:59:28,239 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:59:30,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:59:30,448 INFO L93 Difference]: Finished difference Result 963 states and 1197 transitions. [2020-09-25 10:59:30,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 10:59:30,449 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2020-09-25 10:59:30,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:59:30,459 INFO L225 Difference]: With dead ends: 963 [2020-09-25 10:59:30,460 INFO L226 Difference]: Without dead ends: 720 [2020-09-25 10:59:30,464 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 10:59:30,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 720 states. [2020-09-25 10:59:30,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 720 to 575. [2020-09-25 10:59:30,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 575 states. [2020-09-25 10:59:30,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 667 transitions. [2020-09-25 10:59:30,573 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 667 transitions. Word has length 148 [2020-09-25 10:59:30,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:59:30,574 INFO L479 AbstractCegarLoop]: Abstraction has 575 states and 667 transitions. [2020-09-25 10:59:30,574 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 10:59:30,574 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 667 transitions. [2020-09-25 10:59:30,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-25 10:59:30,578 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:59:30,579 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:59:30,579 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 10:59:30,579 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:59:30,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:59:30,580 INFO L82 PathProgramCache]: Analyzing trace with hash -68972720, now seen corresponding path program 1 times [2020-09-25 10:59:30,580 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:59:30,580 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [987475454] [2020-09-25 10:59:30,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:59:30,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:30,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:30,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:30,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:35,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:35,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-09-25 10:59:35,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 10:59:35,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 10:59:35,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:35,636 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:35,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 10:59:35,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 10:59:35,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-25 10:59:35,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:36,040 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 10:59:36,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:59:36,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:36,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:36,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:36,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 10:59:36,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:36,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 274 [2020-09-25 10:59:36,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:36,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:36,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:36,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:36,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 10:59:36,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:59:36,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 10:59:36,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:36,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:36,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:36,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:59:36,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:36,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:59:36,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:36,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:36,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:36,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:36,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:59:36,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:36,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 10:59:36,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:36,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:36,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:36,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:59:36,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:36,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:59:36,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:36,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:36,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:36,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:36,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:59:36,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:36,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 10:59:36,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:36,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:36,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:36,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:59:36,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:36,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 10:59:36,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:36,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:36,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:36,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:36,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:59:36,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:36,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 10:59:36,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:36,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:36,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:36,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:59:36,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:36,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:59:36,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:36,455 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:36,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:36,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:36,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:59:36,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:36,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-25 10:59:36,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:36,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:36,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:36,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:59:36,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:36,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:59:36,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:36,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:36,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:59:36,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 10:59:36,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:59:36,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:36,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-25 10:59:36,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:36,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:36,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:36,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 10:59:36,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:36,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:59:36,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:36,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:36,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:59:36,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 10:59:36,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:59:36,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:36,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:59:36,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:36,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:36,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:36,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:59:36,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:36,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 10:59:36,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:36,497 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:36,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:59:36,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:36,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:59:36,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:36,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 10:59:36,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:36,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:36,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:36,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:59:36,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:36,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:59:36,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:36,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:36,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:59:36,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:59:36,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:59:36,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:36,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 10:59:36,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:36,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:36,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:36,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:59:36,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:36,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:59:36,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:36,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:36,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:59:36,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:59:36,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:59:36,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:36,550 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 10:59:36,550 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [987475454] [2020-09-25 10:59:36,551 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:59:36,551 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 10:59:36,551 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305663936] [2020-09-25 10:59:36,552 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 10:59:36,552 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:59:36,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 10:59:36,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 10:59:36,553 INFO L87 Difference]: Start difference. First operand 575 states and 667 transitions. Second operand 6 states. [2020-09-25 10:59:37,133 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 10:59:37,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:59:37,892 INFO L93 Difference]: Finished difference Result 795 states and 970 transitions. [2020-09-25 10:59:37,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 10:59:37,893 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 156 [2020-09-25 10:59:37,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:59:37,894 INFO L225 Difference]: With dead ends: 795 [2020-09-25 10:59:37,894 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 10:59:37,903 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 10:59:37,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 10:59:37,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 10:59:37,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 10:59:37,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 10:59:37,904 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 156 [2020-09-25 10:59:37,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:59:37,905 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 10:59:37,905 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 10:59:37,905 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 10:59:37,905 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 10:59:37,905 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 10:59:37,908 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 10:59:38,112 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:59:38,306 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:59:38,501 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:59:38,670 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 10 [2020-09-25 10:59:38,857 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:59:39,038 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:59:39,213 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:59:39,340 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 10 [2020-09-25 10:59:39,524 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:59:39,650 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 10 [2020-09-25 10:59:39,813 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:59:39,948 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 10 [2020-09-25 10:59:40,242 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190 [2020-09-25 10:59:40,539 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190 [2020-09-25 10:59:40,835 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190 [2020-09-25 10:59:40,989 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 10:59:41,157 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:59:41,318 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:59:41,480 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:59:41,634 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:59:41,791 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:59:41,949 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:59:42,109 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:59:42,262 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:59:42,415 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:59:42,574 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:59:42,732 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:59:42,891 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:59:43,046 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:59:43,206 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:59:43,360 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:59:43,518 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:59:43,677 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:59:44,034 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 10:59:44,375 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 10:59:44,716 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 10:59:44,974 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 189 [2020-09-25 10:59:45,235 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 189 [2020-09-25 10:59:45,393 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:59:45,513 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 10 [2020-09-25 10:59:45,671 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:59:45,825 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:59:45,983 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:59:46,142 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:59:46,295 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:59:46,450 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:59:46,609 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:59:46,966 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 10:59:47,224 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 189 [2020-09-25 10:59:47,484 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 189 [2020-09-25 10:59:47,821 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 10:59:48,160 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 10:59:48,417 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 189 [2020-09-25 10:59:48,674 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 189 [2020-09-25 10:59:49,012 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 10:59:49,350 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 10:59:49,468 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 10 [2020-09-25 10:59:49,625 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:59:49,783 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:59:50,121 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 10:59:50,458 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 10:59:50,803 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 10:59:51,059 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 189 [2020-09-25 10:59:51,315 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 189 [2020-09-25 10:59:51,473 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:59:51,631 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:59:51,790 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:59:51,949 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:59:52,101 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:59:52,254 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:59:52,411 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:59:52,564 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:59:52,721 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:59:52,887 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:59:53,045 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:59:53,203 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:59:53,314 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 10 [2020-09-25 10:59:53,501 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:59:53,659 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:59:53,817 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:59:53,969 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:59:54,122 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:59:54,279 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:59:54,433 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:59:54,586 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:59:54,743 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:59:54,903 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:59:55,062 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:59:55,235 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:59:55,388 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:59:55,544 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:59:55,701 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:59:55,859 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:59:56,011 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:59:56,164 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:59:56,322 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:59:56,479 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:59:56,892 WARN L193 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 13 [2020-09-25 10:59:57,089 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 24 [2020-09-25 10:59:57,321 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 1 [2020-09-25 10:59:57,592 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 24 [2020-09-25 10:59:57,809 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 24 [2020-09-25 10:59:58,052 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 14 [2020-09-25 10:59:58,329 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 10:59:58,550 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 1 [2020-09-25 10:59:58,981 WARN L193 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 16 [2020-09-25 10:59:59,397 WARN L193 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 14 [2020-09-25 10:59:59,830 WARN L193 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 16 [2020-09-25 11:00:00,306 WARN L193 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 13 [2020-09-25 11:00:00,533 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 1