/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=0.1 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product24.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 09:51:29,707 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 09:51:29,711 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 09:51:29,757 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 09:51:29,757 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 09:51:29,764 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 09:51:29,766 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 09:51:29,770 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 09:51:29,772 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 09:51:29,775 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 09:51:29,776 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 09:51:29,777 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 09:51:29,777 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 09:51:29,780 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 09:51:29,782 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 09:51:29,784 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 09:51:29,785 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 09:51:29,787 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 09:51:29,788 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 09:51:29,796 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 09:51:29,798 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 09:51:29,799 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 09:51:29,800 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 09:51:29,801 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 09:51:29,813 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 09:51:29,813 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 09:51:29,814 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 09:51:29,820 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 09:51:29,820 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 09:51:29,821 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 09:51:29,821 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 09:51:29,826 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 09:51:29,827 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 09:51:29,828 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 09:51:29,830 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 09:51:29,830 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 09:51:29,831 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 09:51:29,831 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 09:51:29,831 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 09:51:29,833 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 09:51:29,833 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 09:51:29,834 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 09:51:29,877 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 09:51:29,877 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 09:51:29,880 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 09:51:29,880 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 09:51:29,880 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 09:51:29,880 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 09:51:29,881 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 09:51:29,881 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 09:51:29,881 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 09:51:29,881 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 09:51:29,882 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 09:51:29,883 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 09:51:29,883 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 09:51:29,883 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 09:51:29,883 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 09:51:29,884 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 09:51:29,884 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 09:51:29,884 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 09:51:29,884 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 09:51:29,884 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 09:51:29,885 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 09:51:29,885 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 09:51:29,885 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 09:51:29,885 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 09:51:29,885 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 09:51:29,885 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 09:51:29,886 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 09:51:29,886 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 09:51:29,886 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 09:51:29,886 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=0.1;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=0.1;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=0.1;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=0.1;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=0.1;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=0.1;log-additional-information=true; [2020-09-25 09:51:30,332 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 09:51:30,353 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 09:51:30,358 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 09:51:30,360 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 09:51:30,361 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 09:51:30,362 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product24.cil.c [2020-09-25 09:51:30,445 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3620e28cd/49a1ec1a4b8340d2aebfebb432964fa9/FLAG30bcb46fb [2020-09-25 09:51:31,095 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 09:51:31,095 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product24.cil.c [2020-09-25 09:51:31,109 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3620e28cd/49a1ec1a4b8340d2aebfebb432964fa9/FLAG30bcb46fb [2020-09-25 09:51:31,330 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3620e28cd/49a1ec1a4b8340d2aebfebb432964fa9 [2020-09-25 09:51:31,343 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 09:51:31,349 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 09:51:31,350 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 09:51:31,350 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 09:51:31,355 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 09:51:31,356 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:51:31" (1/1) ... [2020-09-25 09:51:31,360 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7845d484 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:51:31, skipping insertion in model container [2020-09-25 09:51:31,360 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:51:31" (1/1) ... [2020-09-25 09:51:31,369 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 09:51:31,420 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 09:51:31,778 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:51:31,794 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 09:51:32,028 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:51:32,068 INFO L208 MainTranslator]: Completed translation [2020-09-25 09:51:32,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:51:32 WrapperNode [2020-09-25 09:51:32,069 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 09:51:32,070 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 09:51:32,070 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 09:51:32,070 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 09:51:32,085 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:51:32" (1/1) ... [2020-09-25 09:51:32,085 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:51:32" (1/1) ... [2020-09-25 09:51:32,106 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:51:32" (1/1) ... [2020-09-25 09:51:32,107 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:51:32" (1/1) ... [2020-09-25 09:51:32,136 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:51:32" (1/1) ... [2020-09-25 09:51:32,150 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:51:32" (1/1) ... [2020-09-25 09:51:32,164 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:51:32" (1/1) ... [2020-09-25 09:51:32,176 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 09:51:32,176 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 09:51:32,179 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 09:51:32,179 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 09:51:32,180 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:51:32" (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 09:51:32,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 09:51:32,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 09:51:32,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 09:51:32,275 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 09:51:32,275 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 09:51:32,275 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 09:51:32,275 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 09:51:32,275 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 09:51:32,276 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 09:51:32,276 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 09:51:32,276 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 09:51:32,276 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 09:51:32,276 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 09:51:32,277 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 09:51:32,277 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 09:51:32,277 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 09:51:32,277 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 09:51:32,277 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 09:51:32,278 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 09:51:32,278 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 09:51:32,278 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 09:51:32,278 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 09:51:32,278 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 09:51:32,279 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 09:51:32,279 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 09:51:32,279 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 09:51:32,279 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 09:51:32,279 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 09:51:32,279 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 09:51:32,280 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 09:51:32,280 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 09:51:32,280 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 09:51:32,280 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 09:51:32,280 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 09:51:32,280 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 09:51:32,280 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 09:51:32,281 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 09:51:32,281 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 09:51:32,281 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 09:51:32,281 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 09:51:32,281 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 09:51:32,281 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 09:51:32,281 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 09:51:32,282 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 09:51:32,282 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 09:51:32,282 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 09:51:32,282 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 09:51:32,282 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 09:51:32,282 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 09:51:32,283 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 09:51:32,283 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 09:51:32,283 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 09:51:32,283 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 09:51:32,283 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 09:51:32,283 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 09:51:32,284 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 09:51:32,284 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 09:51:32,284 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 09:51:32,284 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 09:51:32,284 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 09:51:32,284 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 09:51:32,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 09:51:32,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 09:51:32,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 09:51:32,285 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 09:51:32,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 09:51:32,285 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 09:51:32,285 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 09:51:32,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 09:51:32,286 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 09:51:32,286 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 09:51:32,286 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 09:51:32,286 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 09:51:32,286 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 09:51:32,286 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 09:51:32,287 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 09:51:32,287 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 09:51:32,287 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 09:51:32,287 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 09:51:32,287 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 09:51:32,287 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 09:51:32,288 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 09:51:32,288 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 09:51:32,288 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 09:51:32,288 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 09:51:32,288 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 09:51:32,288 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 09:51:32,289 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 09:51:32,289 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 09:51:32,289 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 09:51:32,289 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 09:51:32,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 09:51:32,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 09:51:32,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 09:51:33,480 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 09:51:33,480 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 09:51:33,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:51:33 BoogieIcfgContainer [2020-09-25 09:51:33,488 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 09:51:33,489 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 09:51:33,489 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 09:51:33,493 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 09:51:33,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 09:51:31" (1/3) ... [2020-09-25 09:51:33,494 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@294afba2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:51:33, skipping insertion in model container [2020-09-25 09:51:33,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:51:32" (2/3) ... [2020-09-25 09:51:33,494 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@294afba2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:51:33, skipping insertion in model container [2020-09-25 09:51:33,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:51:33" (3/3) ... [2020-09-25 09:51:33,497 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product24.cil.c [2020-09-25 09:51:33,508 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 09:51:33,519 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 09:51:33,542 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 09:51:33,575 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 09:51:33,575 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 09:51:33,576 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 09:51:33,576 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 09:51:33,576 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 09:51:33,576 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 09:51:33,576 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 09:51:33,576 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 09:51:33,605 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states. [2020-09-25 09:51:33,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 09:51:33,623 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:51:33,625 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 09:51:33,626 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:51:33,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:51:33,634 INFO L82 PathProgramCache]: Analyzing trace with hash -55902763, now seen corresponding path program 1 times [2020-09-25 09:51:33,643 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:51:33,644 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1882541262] [2020-09-25 09:51:33,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:51:33,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:51:34,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:51:34,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:51:35,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:51:36,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:51:39,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:51:39,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 09:51:39,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 09:51:39,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5042 [2020-09-25 09:51:39,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:51:39,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:51:39,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 09:51:39,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 09:51:39,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 09:51:39,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 09:51:39,447 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 09:51:39,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:51:39,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:51:39,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:51:39,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:51:39,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 09:51:39,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:51:39,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 284 [2020-09-25 09:51:39,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:51:39,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:51:39,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:51:39,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:51:39,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 09:51:39,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:51:39,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 09:51:39,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:51:39,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:51:39,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:51:39,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:51:39,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:51:39,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 09:51:39,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:51:39,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:51:39,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:51:39,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:51:39,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:51:39,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:51:39,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 09:51:39,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:51:39,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:51:39,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:51:39,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:51:39,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:51:39,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 09:51:39,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:51:39,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:51:39,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:51:39,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:51:39,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:51:39,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:51:39,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 09:51:39,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:51:39,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:51:39,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:51:39,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:51:39,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:51:39,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 09:51:39,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:51:39,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:51:39,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:51:39,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:51:39,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:51:39,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:51:39,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 09:51:39,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:51:39,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:51:39,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:51:39,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:51:39,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:51:39,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 09:51:39,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:51:39,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:51:39,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:51:39,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:51:39,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:51:39,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:51:39,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 09:51:39,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:51:39,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:51:39,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:51:39,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:51:39,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:51:39,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 09:51:39,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:51:39,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:51:39,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:51:39,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:51:39,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:51:39,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:51:39,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 09:51:39,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:51:40,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:51:40,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:51:40,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:51:40,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:51:40,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 09:51:40,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:51:40,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:51:40,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:51:40,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:51:40,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:51:40,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 09:51:40,104 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 09:51:40,105 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1882541262] [2020-09-25 09:51:40,107 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:51:40,107 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 09:51:40,108 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716692368] [2020-09-25 09:51:40,115 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 09:51:40,115 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:51:40,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 09:51:40,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 09:51:40,137 INFO L87 Difference]: Start difference. First operand 310 states. Second operand 8 states. [2020-09-25 09:51:40,723 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:51:41,681 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:51:42,002 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:51:42,413 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:51:42,824 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:51:43,176 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:51:43,503 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:51:43,837 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:51:45,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:51:45,838 INFO L93 Difference]: Finished difference Result 649 states and 797 transitions. [2020-09-25 09:51:45,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 09:51:45,844 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-25 09:51:45,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:51:45,883 INFO L225 Difference]: With dead ends: 649 [2020-09-25 09:51:45,884 INFO L226 Difference]: Without dead ends: 450 [2020-09-25 09:51:45,893 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-25 09:51:45,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2020-09-25 09:51:46,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 405. [2020-09-25 09:51:46,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 405 states. [2020-09-25 09:51:46,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 461 transitions. [2020-09-25 09:51:46,123 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 461 transitions. Word has length 142 [2020-09-25 09:51:46,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:51:46,124 INFO L479 AbstractCegarLoop]: Abstraction has 405 states and 461 transitions. [2020-09-25 09:51:46,124 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 09:51:46,125 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 461 transitions. [2020-09-25 09:51:46,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 09:51:46,130 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:51:46,131 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:51:46,131 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 09:51:46,131 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:51:46,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:51:46,132 INFO L82 PathProgramCache]: Analyzing trace with hash -1833039273, now seen corresponding path program 1 times [2020-09-25 09:51:46,132 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:51:46,133 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1789224964] [2020-09-25 09:51:46,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:51:46,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:51:46,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:51:46,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:51:47,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:51:51,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:51:51,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 09:51:51,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 09:51:51,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-09-25 09:51:51,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:51:51,222 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:51:51,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 09:51:51,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 09:51:51,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 09:51:51,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:51:51,497 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 09:51:51,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:51:51,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:51:51,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:51:51,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:51:51,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 09:51:51,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:51:51,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 229 [2020-09-25 09:51:51,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:51:51,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:51:51,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:51:51,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:51:51,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 09:51:51,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:51:51,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 09:51:51,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:51:51,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:51:51,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:51:51,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:51:51,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:51:51,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:51:51,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:51:51,820 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:51:51,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:51:51,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:51:51,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:51:51,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:51:51,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 09:51:51,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:51:51,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:51:51,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:51:51,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:51:51,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:51:51,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:51:51,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:51:51,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:51:51,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:51:51,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:51:51,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:51:51,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:51:51,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 09:51:51,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:51:51,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:51:51,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:51:51,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:51:51,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:51:51,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 09:51:51,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:51:51,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:51:51,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:51:51,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:51:51,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:51:51,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:51:51,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 09:51:51,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:51:51,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:51:51,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:51:51,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:51:51,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:51:51,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:51:51,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:51:51,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:51:51,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:51:51,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:51:51,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:51:51,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:51:51,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-25 09:51:51,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:51:51,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:51:51,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:51:51,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:51:51,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:51:51,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 09:51:51,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:51:51,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:51:51,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:51:51,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:51:51,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 09:51:51,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:51:51,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 09:51:51,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:51:51,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:51:51,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:51:51,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:51:51,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:51:51,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:51:51,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:51:51,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:51:51,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:51:51,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:51:51,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:51:51,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:51:51,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 09:51:51,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:51:51,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:51:51,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:51:51,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:51:51,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:51:51,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:51:51,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:51:51,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:51:51,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:51:51,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:51:51,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:51:51,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:51:51,919 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 09:51:51,920 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1789224964] [2020-09-25 09:51:51,920 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:51:51,920 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 09:51:51,920 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011393214] [2020-09-25 09:51:51,923 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 09:51:51,923 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:51:51,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 09:51:51,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 09:51:51,924 INFO L87 Difference]: Start difference. First operand 405 states and 461 transitions. Second operand 5 states. [2020-09-25 09:51:52,520 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:51:55,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:51:55,180 INFO L93 Difference]: Finished difference Result 1123 states and 1386 transitions. [2020-09-25 09:51:55,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 09:51:55,181 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2020-09-25 09:51:55,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:51:55,192 INFO L225 Difference]: With dead ends: 1123 [2020-09-25 09:51:55,193 INFO L226 Difference]: Without dead ends: 828 [2020-09-25 09:51:55,200 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 09:51:55,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 828 states. [2020-09-25 09:51:55,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 828 to 675. [2020-09-25 09:51:55,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 675 states. [2020-09-25 09:51:55,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 783 transitions. [2020-09-25 09:51:55,340 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 783 transitions. Word has length 148 [2020-09-25 09:51:55,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:51:55,341 INFO L479 AbstractCegarLoop]: Abstraction has 675 states and 783 transitions. [2020-09-25 09:51:55,342 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 09:51:55,342 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 783 transitions. [2020-09-25 09:51:55,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 09:51:55,346 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:51:55,346 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] [2020-09-25 09:51:55,347 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 09:51:55,347 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:51:55,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:51:55,347 INFO L82 PathProgramCache]: Analyzing trace with hash 1796257642, now seen corresponding path program 1 times [2020-09-25 09:51:55,347 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:51:55,348 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1241797433] [2020-09-25 09:51:55,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:51:55,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:51:55,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:51:55,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:51:55,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:51:55,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:00,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:00,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 09:52:00,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 09:52:00,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-09-25 09:52:00,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:00,412 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:00,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 09:52:00,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 09:52:00,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-25 09:52:00,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:00,775 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 09:52:00,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:52:00,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:00,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:01,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:01,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 09:52:01,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:01,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 271 [2020-09-25 09:52:01,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:01,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:01,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:01,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:01,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 09:52:01,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:01,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 09:52:01,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:01,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:01,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:01,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:52:01,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:01,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 09:52:01,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:01,154 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:01,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:01,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:01,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:52:01,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:01,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 09:52:01,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:01,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:01,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:01,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:52:01,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:01,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:52:01,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:01,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:01,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:01,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:01,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:52:01,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:01,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 09:52:01,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:01,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:01,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:01,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:52:01,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:01,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 09:52:01,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:01,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:01,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:01,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:01,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:52:01,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:01,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 09:52:01,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:01,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:01,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:01,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:52:01,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:01,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:52:01,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:01,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:01,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:01,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:01,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:52:01,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 09:52:01,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-25 09:52:01,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:01,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:01,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:01,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:52:01,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:01,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 09:52:01,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:01,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:01,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:52:01,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 09:52:01,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:52:01,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 09:52:01,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-25 09:52:01,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:01,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:01,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:01,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 09:52:01,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:01,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:52:01,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:01,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:01,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:52:01,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 09:52:01,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:52:01,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:01,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:52:01,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:01,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:01,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:01,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 09:52:01,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:01,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:52:01,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:01,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:01,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:52:01,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:01,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:52:01,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:01,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:52:01,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:01,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:01,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:01,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:52:01,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:01,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:52:01,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:01,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:01,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:52:01,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:01,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:52:01,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 09:52:01,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 09:52:01,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:01,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:01,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:01,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:52:01,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:01,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:52:01,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:01,268 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:01,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:52:01,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:52:01,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:52:01,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:01,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 09:52:01,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:01,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:01,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:01,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:52:01,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:01,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:52:01,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:01,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:01,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:52:01,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:52:01,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:52:01,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:01,336 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 09:52:01,337 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1241797433] [2020-09-25 09:52:01,338 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:52:01,338 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 09:52:01,338 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168182235] [2020-09-25 09:52:01,341 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 09:52:01,341 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:52:01,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 09:52:01,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 09:52:01,342 INFO L87 Difference]: Start difference. First operand 675 states and 783 transitions. Second operand 6 states. [2020-09-25 09:52:02,023 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:52:02,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:52:02,852 INFO L93 Difference]: Finished difference Result 905 states and 1100 transitions. [2020-09-25 09:52:02,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 09:52:02,853 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 161 [2020-09-25 09:52:02,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:52:02,854 INFO L225 Difference]: With dead ends: 905 [2020-09-25 09:52:02,854 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 09:52:02,860 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 09:52:02,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 09:52:02,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 09:52:02,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 09:52:02,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 09:52:02,862 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 161 [2020-09-25 09:52:02,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:52:02,862 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 09:52:02,862 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 09:52:02,862 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 09:52:02,862 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 09:52:02,862 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 09:52:02,866 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 09:52:03,049 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 10 [2020-09-25 09:52:03,225 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:03,409 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:03,806 WARN L193 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 09:52:04,168 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 09:52:04,443 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 189 [2020-09-25 09:52:04,794 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 09:52:05,062 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 189 [2020-09-25 09:52:05,222 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:05,404 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:05,565 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:05,728 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:05,839 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 10 [2020-09-25 09:52:05,998 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:06,162 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:06,335 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:06,489 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:06,644 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:06,803 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:06,961 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:07,126 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:07,280 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:07,437 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:07,594 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:07,781 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:07,936 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:08,242 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190 [2020-09-25 09:52:08,548 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190 [2020-09-25 09:52:08,855 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190 [2020-09-25 09:52:08,995 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 09:52:09,164 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:09,317 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:09,470 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:09,626 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:09,787 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:09,944 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:10,106 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:10,260 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:10,418 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:10,575 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:10,731 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:10,889 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:11,046 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:11,203 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:11,361 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:11,514 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:11,672 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:11,829 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:11,988 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:12,097 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 10 [2020-09-25 09:52:12,255 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:12,413 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:12,570 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:12,724 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:12,881 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:13,034 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:13,396 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 09:52:13,737 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 09:52:13,997 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 189 [2020-09-25 09:52:14,337 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 09:52:14,617 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 189 [2020-09-25 09:52:14,770 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:14,928 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:15,086 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:15,239 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:15,397 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:15,556 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:15,711 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:15,830 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 10 [2020-09-25 09:52:15,950 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 10 [2020-09-25 09:52:16,107 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:16,264 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:16,422 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:16,580 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:16,688 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 10 [2020-09-25 09:52:16,845 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:17,109 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 189 [2020-09-25 09:52:17,369 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 189 [2020-09-25 09:52:17,630 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 189 [2020-09-25 09:52:17,971 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 09:52:18,311 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 09:52:18,651 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 09:52:18,911 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 189 [2020-09-25 09:52:19,252 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 09:52:19,592 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 09:52:19,754 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:19,913 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:20,069 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:20,230 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:20,408 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:20,565 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:20,719 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:20,876 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:21,029 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:21,138 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 10 [2020-09-25 09:52:21,295 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:21,452 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:21,609 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:21,763 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:21,920 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:22,089 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:22,558 WARN L193 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 13 [2020-09-25 09:52:22,902 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 16 [2020-09-25 09:52:23,163 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 24 [2020-09-25 09:52:23,408 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 1 [2020-09-25 09:52:23,885 WARN L193 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 13 [2020-09-25 09:52:24,364 WARN L193 SmtUtils]: Spent 442.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 16 [2020-09-25 09:52:24,864 WARN L193 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 13 [2020-09-25 09:52:25,082 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 14