/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product26.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 11:56:57,742 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 11:56:57,750 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 11:56:57,795 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 11:56:57,795 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 11:56:57,804 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 11:56:57,806 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 11:56:57,810 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 11:56:57,813 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 11:56:57,817 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 11:56:57,819 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 11:56:57,820 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 11:56:57,821 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 11:56:57,824 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 11:56:57,827 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 11:56:57,830 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 11:56:57,832 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 11:56:57,833 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 11:56:57,835 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 11:56:57,843 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 11:56:57,846 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 11:56:57,847 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 11:56:57,848 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 11:56:57,849 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 11:56:57,866 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 11:56:57,866 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 11:56:57,869 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 11:56:57,870 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 11:56:57,870 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 11:56:57,871 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 11:56:57,872 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 11:56:57,873 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 11:56:57,874 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 11:56:57,874 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 11:56:57,876 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 11:56:57,876 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 11:56:57,877 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 11:56:57,877 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 11:56:57,877 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 11:56:57,878 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 11:56:57,879 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 11:56:57,880 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 11:56:57,906 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 11:56:57,906 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 11:56:57,908 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 11:56:57,908 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 11:56:57,908 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 11:56:57,908 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 11:56:57,909 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 11:56:57,909 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 11:56:57,909 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 11:56:57,909 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 11:56:57,909 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 11:56:57,910 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 11:56:57,910 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 11:56:57,910 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 11:56:57,910 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 11:56:57,910 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 11:56:57,911 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 11:56:57,911 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 11:56:57,911 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 11:56:57,911 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 11:56:57,911 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 11:56:57,912 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 11:56:57,912 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 11:56:57,912 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 11:56:57,912 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 11:56:57,913 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 11:56:57,913 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 11:56:57,913 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 11:56:57,913 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 11:56:57,913 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; [2020-09-25 11:56:58,360 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 11:56:58,378 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 11:56:58,382 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 11:56:58,384 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 11:56:58,384 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 11:56:58,385 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product26.cil.c [2020-09-25 11:56:58,478 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/86dd7ecab/46aeba3322eb4f428d7b17fcb6b91e47/FLAGd0dda7172 [2020-09-25 11:56:59,131 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 11:56:59,132 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product26.cil.c [2020-09-25 11:56:59,148 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/86dd7ecab/46aeba3322eb4f428d7b17fcb6b91e47/FLAGd0dda7172 [2020-09-25 11:56:59,405 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/86dd7ecab/46aeba3322eb4f428d7b17fcb6b91e47 [2020-09-25 11:56:59,420 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 11:56:59,426 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 11:56:59,427 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 11:56:59,427 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 11:56:59,432 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 11:56:59,433 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:56:59" (1/1) ... [2020-09-25 11:56:59,438 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32b5b388 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:56:59, skipping insertion in model container [2020-09-25 11:56:59,438 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:56:59" (1/1) ... [2020-09-25 11:56:59,448 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 11:56:59,502 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 11:57:00,048 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 11:57:00,061 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 11:57:00,133 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 11:57:00,173 INFO L208 MainTranslator]: Completed translation [2020-09-25 11:57:00,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:57:00 WrapperNode [2020-09-25 11:57:00,174 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 11:57:00,175 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 11:57:00,175 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 11:57:00,175 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 11:57:00,191 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:57:00" (1/1) ... [2020-09-25 11:57:00,191 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:57:00" (1/1) ... [2020-09-25 11:57:00,213 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:57:00" (1/1) ... [2020-09-25 11:57:00,214 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:57:00" (1/1) ... [2020-09-25 11:57:00,247 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:57:00" (1/1) ... [2020-09-25 11:57:00,259 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:57:00" (1/1) ... [2020-09-25 11:57:00,264 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:57:00" (1/1) ... [2020-09-25 11:57:00,272 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 11:57:00,272 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 11:57:00,273 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 11:57:00,273 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 11:57:00,274 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:57:00" (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 11:57:00,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 11:57:00,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 11:57:00,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 11:57:00,362 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 11:57:00,363 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 11:57:00,363 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 11:57:00,363 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 11:57:00,363 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 11:57:00,363 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 11:57:00,364 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 11:57:00,364 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 11:57:00,364 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 11:57:00,364 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 11:57:00,364 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 11:57:00,364 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 11:57:00,365 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 11:57:00,365 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 11:57:00,365 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 11:57:00,365 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 11:57:00,366 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 11:57:00,366 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 11:57:00,366 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 11:57:00,366 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 11:57:00,366 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 11:57:00,367 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 11:57:00,367 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 11:57:00,367 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 11:57:00,367 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 11:57:00,367 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 11:57:00,367 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 11:57:00,368 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 11:57:00,368 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 11:57:00,368 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 11:57:00,368 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 11:57:00,368 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 11:57:00,368 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 11:57:00,369 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 11:57:00,369 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 11:57:00,369 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 11:57:00,369 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 11:57:00,369 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 11:57:00,369 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 11:57:00,369 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 11:57:00,370 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 11:57:00,370 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 11:57:00,370 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 11:57:00,370 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 11:57:00,370 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 11:57:00,370 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 11:57:00,371 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 11:57:00,371 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 11:57:00,371 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 11:57:00,371 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 11:57:00,371 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 11:57:00,371 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 11:57:00,372 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 11:57:00,372 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 11:57:00,372 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 11:57:00,372 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 11:57:00,372 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 11:57:00,372 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 11:57:00,372 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 11:57:00,373 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 11:57:00,373 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 11:57:00,373 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 11:57:00,373 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 11:57:00,373 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 11:57:00,373 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 11:57:00,373 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 11:57:00,374 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 11:57:00,374 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 11:57:00,374 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 11:57:00,374 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 11:57:00,374 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 11:57:00,374 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 11:57:00,375 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 11:57:00,375 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 11:57:00,375 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 11:57:00,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 11:57:00,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 11:57:00,375 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 11:57:00,376 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 11:57:00,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 11:57:00,376 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 11:57:00,376 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 11:57:00,376 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 11:57:00,376 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 11:57:00,376 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 11:57:00,377 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 11:57:00,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 11:57:00,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 11:57:00,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 11:57:01,667 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 11:57:01,667 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 11:57:01,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:57:01 BoogieIcfgContainer [2020-09-25 11:57:01,681 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 11:57:01,683 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 11:57:01,683 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 11:57:01,690 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 11:57:01,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 11:56:59" (1/3) ... [2020-09-25 11:57:01,691 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77c77687 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:57:01, skipping insertion in model container [2020-09-25 11:57:01,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:57:00" (2/3) ... [2020-09-25 11:57:01,692 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77c77687 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:57:01, skipping insertion in model container [2020-09-25 11:57:01,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:57:01" (3/3) ... [2020-09-25 11:57:01,695 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product26.cil.c [2020-09-25 11:57:01,709 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 11:57:01,723 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 11:57:01,746 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 11:57:01,788 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 11:57:01,788 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 11:57:01,789 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 11:57:01,789 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 11:57:01,789 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 11:57:01,789 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 11:57:01,789 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 11:57:01,789 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 11:57:01,830 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states. [2020-09-25 11:57:01,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 11:57:01,857 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:57:01,860 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 11:57:01,861 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:57:01,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:57:01,870 INFO L82 PathProgramCache]: Analyzing trace with hash -919214790, now seen corresponding path program 1 times [2020-09-25 11:57:01,884 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:57:01,886 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [220962555] [2020-09-25 11:57:01,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:57:02,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:57:02,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:02,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:04,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:04,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:07,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:57:07,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 11:57:07,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 11:57:07,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5042 [2020-09-25 11:57:07,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:57:07,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:57:07,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 11:57:07,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 11:57:07,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-09-25 11:57:07,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-25 11:57:07,886 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 11:57:07,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:57:07,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:57:07,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:08,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:57:08,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 11:57:08,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:57:08,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 268 [2020-09-25 11:57:08,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:57:08,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:57:08,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:57:08,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:57:08,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 11:57:08,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:57:08,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 11:57:08,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:57:08,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:08,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:57:08,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:57:08,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:57:08,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 11:57:08,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:57:08,316 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:57:08,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:57:08,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:57:08,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:57:08,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:57:08,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 11:57:08,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:57:08,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:08,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:57:08,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:57:08,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:57:08,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-25 11:57:08,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:57:08,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:57:08,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:57:08,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:57:08,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:57:08,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:57:08,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 11:57:08,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:57:08,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:08,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:57:08,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:57:08,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:57:08,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 11:57:08,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:57:08,377 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:57:08,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:57:08,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:57:08,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:57:08,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:57:08,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 11:57:08,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:57:08,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:08,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:57:08,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:57:08,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:57:08,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 11:57:08,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:57:08,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:57:08,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:57:08,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:57:08,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:57:08,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:57:08,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 11:57:08,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:57:08,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:08,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:57:08,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:57:08,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:57:08,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 11:57:08,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:57:08,401 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:57:08,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:57:08,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 11:57:08,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:57:08,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:57:08,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 11:57:08,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:57:08,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:08,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:57:08,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:57:08,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:57:08,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:57:08,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:57:08,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:57:08,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:57:08,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 11:57:08,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:57:08,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:57:08,449 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 11:57:08,450 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [220962555] [2020-09-25 11:57:08,452 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:57:08,452 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 11:57:08,453 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870160028] [2020-09-25 11:57:08,462 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 11:57:08,463 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:57:08,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 11:57:08,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 11:57:08,483 INFO L87 Difference]: Start difference. First operand 295 states. Second operand 4 states. [2020-09-25 11:57:09,067 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:57:10,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:57:10,065 INFO L93 Difference]: Finished difference Result 422 states and 503 transitions. [2020-09-25 11:57:10,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 11:57:10,067 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 142 [2020-09-25 11:57:10,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:57:10,087 INFO L225 Difference]: With dead ends: 422 [2020-09-25 11:57:10,087 INFO L226 Difference]: Without dead ends: 268 [2020-09-25 11:57:10,093 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 11:57:10,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2020-09-25 11:57:10,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 228. [2020-09-25 11:57:10,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2020-09-25 11:57:10,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 244 transitions. [2020-09-25 11:57:10,212 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 244 transitions. Word has length 142 [2020-09-25 11:57:10,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:57:10,213 INFO L479 AbstractCegarLoop]: Abstraction has 228 states and 244 transitions. [2020-09-25 11:57:10,213 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 11:57:10,213 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 244 transitions. [2020-09-25 11:57:10,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-09-25 11:57:10,225 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:57:10,225 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] [2020-09-25 11:57:10,225 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 11:57:10,226 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:57:10,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:57:10,226 INFO L82 PathProgramCache]: Analyzing trace with hash -819813427, now seen corresponding path program 1 times [2020-09-25 11:57:10,226 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:57:10,227 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1746027699] [2020-09-25 11:57:10,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:57:10,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:57:10,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:10,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:11,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:11,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:13,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:15,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:57:15,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 11:57:15,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 11:57:15,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-09-25 11:57:15,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:57:15,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:57:15,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 11:57:15,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 11:57:15,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-09-25 11:57:15,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:57:15,717 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 11:57:15,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:57:15,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:57:15,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:15,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:57:15,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 11:57:15,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:57:15,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 223 [2020-09-25 11:57:15,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:57:15,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:57:15,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:57:15,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:57:15,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 11:57:15,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:57:16,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 11:57:16,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:57:16,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:16,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:57:16,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:57:16,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:57:16,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 11:57:16,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:57:16,034 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:57:16,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:57:16,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:57:16,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:57:16,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 11:57:16,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 11:57:16,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:57:16,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:16,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:57:16,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:57:16,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:57:16,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 11:57:16,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:57:16,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:57:16,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:57:16,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:57:16,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:57:16,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:57:16,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 11:57:16,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:57:16,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:16,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:57:16,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:57:16,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:57:16,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 11:57:16,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:57:16,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:57:16,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:57:16,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:57:16,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:57:16,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 11:57:16,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 11:57:16,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:57:16,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:16,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:57:16,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:57:16,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:57:16,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:57:16,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:57:16,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:57:16,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:57:16,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:57:16,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:57:16,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:57:16,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 11:57:16,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:57:16,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:16,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:57:16,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 11:57:16,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:57:16,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 11:57:16,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:57:16,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:57:16,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:57:16,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:57:16,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 11:57:16,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:57:16,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:57:16,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:57:16,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:16,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:57:16,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:57:16,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:57:16,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:57:16,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:57:16,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:57:16,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:57:16,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:57:16,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:57:16,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:57:16,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 11:57:16,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:57:16,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:16,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:57:16,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:57:16,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:57:16,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 11:57:16,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:57:16,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:57:16,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:57:16,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:57:16,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:57:16,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:57:16,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 11:57:16,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:57:16,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:16,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:57:16,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:57:16,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:57:16,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:57:16,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:57:16,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:57:16,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:57:16,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 11:57:16,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:57:16,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:57:16,236 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 11:57:16,237 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1746027699] [2020-09-25 11:57:16,237 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:57:16,238 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 11:57:16,238 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615370058] [2020-09-25 11:57:16,240 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 11:57:16,241 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:57:16,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 11:57:16,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 11:57:16,241 INFO L87 Difference]: Start difference. First operand 228 states and 244 transitions. Second operand 9 states. [2020-09-25 11:57:16,822 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:57:18,050 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:18,410 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 11:57:18,737 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:19,113 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 11:57:19,446 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:20,152 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 11:57:20,468 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 11:57:20,835 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:22,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:57:22,101 INFO L93 Difference]: Finished difference Result 572 states and 701 transitions. [2020-09-25 11:57:22,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 11:57:22,101 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 151 [2020-09-25 11:57:22,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:57:22,109 INFO L225 Difference]: With dead ends: 572 [2020-09-25 11:57:22,109 INFO L226 Difference]: Without dead ends: 430 [2020-09-25 11:57:22,112 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 11:57:22,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2020-09-25 11:57:22,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 321. [2020-09-25 11:57:22,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 321 states. [2020-09-25 11:57:22,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 349 transitions. [2020-09-25 11:57:22,185 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 349 transitions. Word has length 151 [2020-09-25 11:57:22,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:57:22,185 INFO L479 AbstractCegarLoop]: Abstraction has 321 states and 349 transitions. [2020-09-25 11:57:22,185 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 11:57:22,186 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 349 transitions. [2020-09-25 11:57:22,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-09-25 11:57:22,197 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:57:22,197 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:57:22,197 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 11:57:22,197 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:57:22,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:57:22,198 INFO L82 PathProgramCache]: Analyzing trace with hash -1047311863, now seen corresponding path program 1 times [2020-09-25 11:57:22,198 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:57:22,198 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [394996196] [2020-09-25 11:57:22,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:57:22,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:57:22,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:22,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:22,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:26,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:57:26,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-09-25 11:57:26,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 11:57:26,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4512 [2020-09-25 11:57:26,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:57:26,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:57:26,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 11:57:26,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 11:57:26,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-09-25 11:57:26,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:57:27,203 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 11:57:27,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:57:27,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:57:27,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:27,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:57:27,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 11:57:27,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:57:27,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 262 [2020-09-25 11:57:27,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:57:27,499 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:57:27,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:57:27,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:57:27,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 11:57:27,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:57:27,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 11:57:27,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:57:27,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:27,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:57:27,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:57:27,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:57:27,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 11:57:27,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:57:27,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:57:27,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:57:27,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:57:27,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:57:27,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:57:27,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 11:57:27,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:57:27,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:27,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:57:27,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:57:27,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:57:27,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:57:27,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:57:27,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:57:27,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:57:27,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:57:27,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:57:27,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:57:27,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 11:57:27,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:57:27,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:27,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:57:27,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:57:27,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:57:27,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 11:57:27,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:57:27,581 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:57:27,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:57:27,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:57:27,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:57:27,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:57:27,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 11:57:27,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:57:27,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:27,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:57:27,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:57:27,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:57:27,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:57:27,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:57:27,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:57:27,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:57:27,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:57:27,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:57:27,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 11:57:27,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 11:57:27,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:57:27,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:27,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:57:27,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 11:57:27,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:57:27,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 11:57:27,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:57:27,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:57:27,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:57:27,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:57:27,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 11:57:27,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:57:27,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 11:57:27,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:57:27,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:27,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:57:27,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 11:57:27,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:57:27,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 11:57:27,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:57:27,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:57:27,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:57:27,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:57:27,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 11:57:27,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:57:27,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 11:57:27,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:57:27,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:27,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:27,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:57:27,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 11:57:27,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:57:27,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 11:57:27,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:57:27,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:57:27,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 11:57:27,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 11:57:27,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 11:57:27,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:57:27,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:57:27,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:57:27,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:27,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:57:27,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:57:27,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:57:27,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:57:27,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:57:27,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:57:27,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:57:27,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:57:27,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:57:27,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:57:27,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 11:57:27,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:57:27,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:27,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:57:27,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:57:27,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:57:27,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:57:27,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:57:27,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:57:27,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:57:27,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:57:27,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:57:27,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:57:27,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-25 11:57:27,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:57:27,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:27,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:57:27,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:57:27,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:57:27,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 11:57:27,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:57:27,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:57:27,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:57:27,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:57:27,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:57:27,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:57:27,756 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 11:57:27,757 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [394996196] [2020-09-25 11:57:27,757 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:57:27,757 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 11:57:27,758 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543339413] [2020-09-25 11:57:27,759 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 11:57:27,759 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:57:27,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 11:57:27,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-25 11:57:27,761 INFO L87 Difference]: Start difference. First operand 321 states and 349 transitions. Second operand 11 states. [2020-09-25 11:57:28,281 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:57:29,604 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:29,945 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 11:57:30,250 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:30,603 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 11:57:30,925 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 11:57:31,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:57:31,357 INFO L93 Difference]: Finished difference Result 578 states and 685 transitions. [2020-09-25 11:57:31,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 11:57:31,358 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 169 [2020-09-25 11:57:31,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:57:31,360 INFO L225 Difference]: With dead ends: 578 [2020-09-25 11:57:31,360 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 11:57:31,364 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=167, Invalid=385, Unknown=0, NotChecked=0, Total=552 [2020-09-25 11:57:31,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 11:57:31,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 11:57:31,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 11:57:31,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 11:57:31,365 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 169 [2020-09-25 11:57:31,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:57:31,366 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 11:57:31,366 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 11:57:31,366 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 11:57:31,366 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 11:57:31,366 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 11:57:31,369 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 11:57:31,607 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:31,769 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:31,929 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:32,085 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:32,268 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:32,428 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:32,584 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:32,882 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 11:57:33,148 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 11:57:33,250 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 10 [2020-09-25 11:57:33,581 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 188 [2020-09-25 11:57:33,905 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 188 [2020-09-25 11:57:34,236 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 188 [2020-09-25 11:57:34,560 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 188 [2020-09-25 11:57:34,820 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 11:57:35,077 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 11:57:35,611 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 11:57:35,762 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:35,918 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:36,071 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:36,222 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:36,371 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:36,519 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:36,668 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:36,817 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:36,966 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:37,119 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:37,274 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:37,423 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:37,576 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:37,731 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:37,885 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:38,033 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:38,186 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:38,334 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:38,486 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:38,638 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:38,791 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:38,930 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 11:57:39,085 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:39,238 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:39,386 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:39,533 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:39,681 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:39,829 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:39,978 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:40,132 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:40,286 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:40,434 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:40,583 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:40,731 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:40,884 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:41,037 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:41,184 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:41,335 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:41,482 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:41,636 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:41,789 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:41,941 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:42,093 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:42,246 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:42,394 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:42,547 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:42,760 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 9 [2020-09-25 11:57:42,914 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:43,066 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:43,214 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:43,362 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:43,516 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:43,670 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:43,825 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:43,936 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 9 [2020-09-25 11:57:44,051 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 9 [2020-09-25 11:57:44,216 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:44,372 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:44,524 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:44,789 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 190 [2020-09-25 11:57:45,052 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 190 [2020-09-25 11:57:45,469 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 188 [2020-09-25 11:57:45,797 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 188 [2020-09-25 11:57:46,125 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 188 [2020-09-25 11:57:46,453 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 188 [2020-09-25 11:57:46,716 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 190 [2020-09-25 11:57:46,979 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 190 [2020-09-25 11:57:47,514 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 190 [2020-09-25 11:57:47,632 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 9 [2020-09-25 11:57:47,784 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:47,937 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:48,087 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:48,507 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 188 [2020-09-25 11:57:49,015 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 188 [2020-09-25 11:57:49,167 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:49,319 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:49,473 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:49,621 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:49,770 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:49,919 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:50,067 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:50,215 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:50,367 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:50,786 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 188 [2020-09-25 11:57:51,294 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 188 [2020-09-25 11:57:51,423 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 9 [2020-09-25 11:57:51,849 WARN L193 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 11 [2020-09-25 11:57:52,056 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 22 [2020-09-25 11:57:52,290 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 20 [2020-09-25 11:57:52,649 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 20 [2020-09-25 11:57:52,866 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 1 [2020-09-25 11:57:53,482 WARN L193 SmtUtils]: Spent 597.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 20 [2020-09-25 11:57:53,694 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 1 [2020-09-25 11:57:54,126 WARN L193 SmtUtils]: Spent 430.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 11 [2020-09-25 11:57:54,346 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 22 [2020-09-25 11:57:54,776 WARN L193 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 11