/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product13.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 10:52:40,750 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 10:52:40,759 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 10:52:40,785 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 10:52:40,786 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 10:52:40,787 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 10:52:40,788 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 10:52:40,790 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 10:52:40,792 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 10:52:40,793 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 10:52:40,794 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 10:52:40,795 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 10:52:40,796 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 10:52:40,797 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 10:52:40,798 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 10:52:40,799 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 10:52:40,800 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 10:52:40,801 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 10:52:40,803 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 10:52:40,808 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 10:52:40,810 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 10:52:40,811 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 10:52:40,812 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 10:52:40,813 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 10:52:40,816 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 10:52:40,816 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 10:52:40,816 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 10:52:40,817 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 10:52:40,818 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 10:52:40,819 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 10:52:40,819 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 10:52:40,820 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 10:52:40,821 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 10:52:40,821 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 10:52:40,823 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 10:52:40,823 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 10:52:40,823 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 10:52:40,824 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 10:52:40,824 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 10:52:40,825 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 10:52:40,826 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 10:52:40,827 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 10:52:40,853 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 10:52:40,853 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 10:52:40,854 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 10:52:40,854 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 10:52:40,855 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 10:52:40,855 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 10:52:40,855 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 10:52:40,855 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 10:52:40,856 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 10:52:40,856 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 10:52:40,856 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 10:52:40,856 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 10:52:40,856 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 10:52:40,857 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 10:52:40,857 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 10:52:40,857 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 10:52:40,857 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 10:52:40,858 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 10:52:40,858 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 10:52:40,858 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 10:52:40,858 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 10:52:40,858 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 10:52:40,859 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 10:52:40,859 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 10:52:40,859 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 10:52:40,859 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 10:52:40,860 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 10:52:40,860 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 10:52:40,860 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 10:52:40,860 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; [2020-09-25 10:52:41,319 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 10:52:41,337 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 10:52:41,341 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 10:52:41,343 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 10:52:41,344 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 10:52:41,345 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product13.cil.c [2020-09-25 10:52:41,447 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b88ad3ba1/652648a251194fcf88546795c7054185/FLAGfd1c32607 [2020-09-25 10:52:42,065 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 10:52:42,066 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product13.cil.c [2020-09-25 10:52:42,084 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b88ad3ba1/652648a251194fcf88546795c7054185/FLAGfd1c32607 [2020-09-25 10:52:42,322 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b88ad3ba1/652648a251194fcf88546795c7054185 [2020-09-25 10:52:42,338 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 10:52:42,344 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 10:52:42,349 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 10:52:42,350 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 10:52:42,354 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 10:52:42,355 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:52:42" (1/1) ... [2020-09-25 10:52:42,360 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11a529ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:52:42, skipping insertion in model container [2020-09-25 10:52:42,361 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:52:42" (1/1) ... [2020-09-25 10:52:42,371 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 10:52:42,444 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 10:52:43,018 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:52:43,038 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 10:52:43,109 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:52:43,153 INFO L208 MainTranslator]: Completed translation [2020-09-25 10:52:43,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:52:43 WrapperNode [2020-09-25 10:52:43,154 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 10:52:43,155 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 10:52:43,155 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 10:52:43,155 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 10:52:43,174 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:52:43" (1/1) ... [2020-09-25 10:52:43,174 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:52:43" (1/1) ... [2020-09-25 10:52:43,195 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:52:43" (1/1) ... [2020-09-25 10:52:43,196 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:52:43" (1/1) ... [2020-09-25 10:52:43,230 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:52:43" (1/1) ... [2020-09-25 10:52:43,242 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:52:43" (1/1) ... [2020-09-25 10:52:43,247 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:52:43" (1/1) ... [2020-09-25 10:52:43,255 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 10:52:43,256 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 10:52:43,256 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 10:52:43,256 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 10:52:43,258 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:52:43" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 10:52:43,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 10:52:43,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 10:52:43,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 10:52:43,361 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 10:52:43,361 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 10:52:43,361 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 10:52:43,361 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 10:52:43,362 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 10:52:43,362 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-09-25 10:52:43,362 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 10:52:43,362 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 10:52:43,362 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 10:52:43,363 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 10:52:43,363 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 10:52:43,363 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 10:52:43,363 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 10:52:43,363 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 10:52:43,364 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 10:52:43,364 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 10:52:43,364 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 10:52:43,364 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 10:52:43,365 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 10:52:43,365 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 10:52:43,365 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 10:52:43,365 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 10:52:43,365 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 10:52:43,366 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 10:52:43,366 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 10:52:43,366 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 10:52:43,366 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 10:52:43,366 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 10:52:43,366 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 10:52:43,367 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 10:52:43,367 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 10:52:43,367 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 10:52:43,367 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 10:52:43,367 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 10:52:43,367 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 10:52:43,368 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 10:52:43,368 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 10:52:43,368 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 10:52:43,368 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 10:52:43,368 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 10:52:43,368 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 10:52:43,369 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 10:52:43,369 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 10:52:43,369 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 10:52:43,369 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 10:52:43,369 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 10:52:43,369 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 10:52:43,370 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 10:52:43,370 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 10:52:43,370 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 10:52:43,370 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 10:52:43,370 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 10:52:43,370 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 10:52:43,371 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 10:52:43,371 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-09-25 10:52:43,371 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 10:52:43,371 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 10:52:43,371 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 10:52:43,371 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 10:52:43,371 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 10:52:43,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 10:52:43,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 10:52:43,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 10:52:43,372 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 10:52:43,372 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 10:52:43,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 10:52:43,373 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 10:52:43,373 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 10:52:43,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 10:52:43,373 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 10:52:43,373 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 10:52:43,373 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 10:52:43,374 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 10:52:43,374 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 10:52:43,374 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 10:52:43,374 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 10:52:43,374 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 10:52:43,374 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 10:52:43,375 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 10:52:43,375 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 10:52:43,375 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 10:52:43,375 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 10:52:43,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 10:52:43,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 10:52:43,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 10:52:44,504 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 10:52:44,504 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 10:52:44,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:52:44 BoogieIcfgContainer [2020-09-25 10:52:44,511 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 10:52:44,512 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 10:52:44,513 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 10:52:44,516 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 10:52:44,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 10:52:42" (1/3) ... [2020-09-25 10:52:44,517 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21b61435 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:52:44, skipping insertion in model container [2020-09-25 10:52:44,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:52:43" (2/3) ... [2020-09-25 10:52:44,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21b61435 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:52:44, skipping insertion in model container [2020-09-25 10:52:44,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:52:44" (3/3) ... [2020-09-25 10:52:44,520 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product13.cil.c [2020-09-25 10:52:44,531 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 10:52:44,540 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 10:52:44,561 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 10:52:44,589 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 10:52:44,589 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 10:52:44,589 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 10:52:44,589 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 10:52:44,589 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 10:52:44,590 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 10:52:44,590 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 10:52:44,590 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 10:52:44,618 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states. [2020-09-25 10:52:44,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 10:52:44,635 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:52:44,637 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:52:44,637 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:52:44,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:52:44,645 INFO L82 PathProgramCache]: Analyzing trace with hash 1208913695, now seen corresponding path program 1 times [2020-09-25 10:52:44,655 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:52:44,655 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [130255417] [2020-09-25 10:52:44,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:52:44,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:45,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:45,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:45,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:46,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:47,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:50,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:50,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 10:52:50,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 10:52:50,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5043 [2020-09-25 10:52:50,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:50,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:50,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:52:50,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 10:52:50,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 10:52:50,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-09-25 10:52:50,567 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 10:52:50,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:52:50,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:50,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:50,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:50,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 10:52:50,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:50,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 286 [2020-09-25 10:52:50,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:50,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:50,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:52:50,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:50,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 10:52:50,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:51,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 10:52:51,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:51,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:51,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:51,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:52:51,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:51,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 10:52:51,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:51,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:51,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:52:51,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:51,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:52:51,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:51,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 10:52:51,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:51,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:51,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:51,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:52:51,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:51,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 10:52:51,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:51,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:51,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:52:51,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:51,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:52:51,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:51,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 10:52:51,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:51,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:51,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:51,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:52:51,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:51,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 10:52:51,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:51,079 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:51,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:52:51,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:51,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:52:51,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:51,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 10:52:51,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:51,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:51,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:51,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:52:51,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:51,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 10:52:51,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:51,096 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:51,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:52:51,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:51,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:52:51,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:51,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 10:52:51,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:51,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:51,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:51,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 10:52:51,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:51,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 10:52:51,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:51,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:51,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:52:51,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:51,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 10:52:51,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:51,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 10:52:51,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:51,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:51,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:51,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:52:51,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:51,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:52:51,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:51,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:51,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:52:51,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:52:51,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:52:51,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:51,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 10:52:51,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:51,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:51,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:51,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:52:51,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:51,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 10:52:51,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:51,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:51,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:52:51,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:52:51,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:52:51,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:51,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 10:52:51,230 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [130255417] [2020-09-25 10:52:51,233 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:52:51,234 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 10:52:51,236 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139583382] [2020-09-25 10:52:51,248 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 10:52:51,248 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:52:51,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 10:52:51,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 10:52:51,277 INFO L87 Difference]: Start difference. First operand 283 states. Second operand 5 states. [2020-09-25 10:52:52,050 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:52:53,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:52:53,129 INFO L93 Difference]: Finished difference Result 404 states and 482 transitions. [2020-09-25 10:52:53,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 10:52:53,131 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2020-09-25 10:52:53,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:52:53,153 INFO L225 Difference]: With dead ends: 404 [2020-09-25 10:52:53,153 INFO L226 Difference]: Without dead ends: 267 [2020-09-25 10:52:53,159 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 10:52:53,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2020-09-25 10:52:53,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 222. [2020-09-25 10:52:53,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2020-09-25 10:52:53,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 239 transitions. [2020-09-25 10:52:53,264 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 239 transitions. Word has length 148 [2020-09-25 10:52:53,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:52:53,266 INFO L479 AbstractCegarLoop]: Abstraction has 222 states and 239 transitions. [2020-09-25 10:52:53,266 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 10:52:53,266 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 239 transitions. [2020-09-25 10:52:53,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-09-25 10:52:53,271 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:52:53,271 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] [2020-09-25 10:52:53,272 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 10:52:53,272 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:52:53,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:52:53,273 INFO L82 PathProgramCache]: Analyzing trace with hash 1041215585, now seen corresponding path program 1 times [2020-09-25 10:52:53,273 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:52:53,273 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [844426185] [2020-09-25 10:52:53,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:52:53,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:53,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:53,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:54,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:54,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:55,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:58,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:58,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-25 10:52:58,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 10:52:58,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-09-25 10:52:58,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:58,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:58,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 10:52:58,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 10:52:58,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-25 10:52:58,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:58,779 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 10:52:58,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:52:58,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:58,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:59,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:59,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 10:52:59,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:59,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 237 [2020-09-25 10:52:59,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:59,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:59,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:52:59,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:59,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 10:52:59,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:59,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 10:52:59,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:59,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:59,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:59,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:52:59,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:59,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:52:59,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:59,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:59,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:52:59,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:59,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:52:59,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:59,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 10:52:59,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:59,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:59,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:59,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:52:59,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:59,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:52:59,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:59,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:59,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:52:59,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:59,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:52:59,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:59,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 10:52:59,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:59,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:59,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:59,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:52:59,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:59,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 10:52:59,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:59,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:59,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:52:59,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:59,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:52:59,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:59,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 10:52:59,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:59,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:59,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:59,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:52:59,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:59,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:52:59,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:59,140 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:59,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:52:59,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:59,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:52:59,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:59,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 10:52:59,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:59,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:59,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:59,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 10:52:59,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:59,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:52:59,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:59,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:59,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:52:59,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:59,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 10:52:59,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:59,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-25 10:52:59,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:59,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:59,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:59,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 10:52:59,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:59,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:52:59,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:59,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:59,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:52:59,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:59,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 10:52:59,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:59,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:52:59,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:59,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:59,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:59,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:52:59,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:59,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:52:59,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:59,192 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:59,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:52:59,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:59,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:52:59,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:59,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 10:52:59,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:59,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:59,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:59,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:52:59,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:59,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 10:52:59,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:59,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:59,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:52:59,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:52:59,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:52:59,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:59,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 10:52:59,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:52:59,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:52:59,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:52:59,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:52:59,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:52:59,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:52:59,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:52:59,246 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:52:59,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:52:59,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:52:59,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:52:59,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:52:59,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 10:52:59,285 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [844426185] [2020-09-25 10:52:59,286 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:52:59,286 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 10:52:59,286 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503221451] [2020-09-25 10:52:59,288 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 10:52:59,288 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:52:59,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 10:52:59,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 10:52:59,289 INFO L87 Difference]: Start difference. First operand 222 states and 239 transitions. Second operand 10 states. [2020-09-25 10:52:59,826 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:53:01,063 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 10:53:01,362 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 10:53:01,958 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:53:02,290 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 10:53:02,877 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 10:53:03,209 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-25 10:53:03,532 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 10:53:04,156 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 10:53:04,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:53:04,800 INFO L93 Difference]: Finished difference Result 545 states and 669 transitions. [2020-09-25 10:53:04,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-25 10:53:04,801 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 157 [2020-09-25 10:53:04,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:53:04,807 INFO L225 Difference]: With dead ends: 545 [2020-09-25 10:53:04,807 INFO L226 Difference]: Without dead ends: 420 [2020-09-25 10:53:04,810 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2020-09-25 10:53:04,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2020-09-25 10:53:04,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 301. [2020-09-25 10:53:04,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 301 states. [2020-09-25 10:53:04,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 330 transitions. [2020-09-25 10:53:04,896 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 330 transitions. Word has length 157 [2020-09-25 10:53:04,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:53:04,897 INFO L479 AbstractCegarLoop]: Abstraction has 301 states and 330 transitions. [2020-09-25 10:53:04,897 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 10:53:04,897 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 330 transitions. [2020-09-25 10:53:04,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-25 10:53:04,908 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:53:04,909 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:53:04,909 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 10:53:04,909 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:53:04,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:53:04,913 INFO L82 PathProgramCache]: Analyzing trace with hash -1571453161, now seen corresponding path program 1 times [2020-09-25 10:53:04,914 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:53:04,914 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [876551420] [2020-09-25 10:53:04,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:53:04,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:53:05,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:53:05,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:53:05,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:53:08,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:53:09,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:53:09,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 208 [2020-09-25 10:53:09,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 10:53:09,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 10:53:09,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:53:09,983 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:53:09,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 10:53:09,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 10:53:09,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-09-25 10:53:09,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:53:10,275 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 10:53:10,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:53:10,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:53:10,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:53:10,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:53:10,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 10:53:10,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:53:10,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 181 [2020-09-25 10:53:10,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:53:10,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:53:10,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:53:10,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:53:10,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 10:53:10,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:53:10,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 10:53:10,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:53:10,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:53:10,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:53:10,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:53:10,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:53:10,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:53:10,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:53:10,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:53:10,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:53:10,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:53:10,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:53:10,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:53:10,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 10:53:10,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:53:10,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:53:10,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:53:10,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:53:10,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:53:10,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:53:10,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:53:10,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:53:10,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:53:10,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:53:10,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:53:10,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:53:10,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 10:53:10,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:53:10,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:53:10,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:53:10,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:53:10,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:53:10,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 10:53:10,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:53:10,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:53:10,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:53:10,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:53:10,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:53:10,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:53:10,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 10:53:10,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:53:10,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:53:10,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:53:10,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:53:10,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:53:10,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:53:10,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:53:10,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:53:10,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:53:10,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:53:10,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:53:10,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:53:10,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 10:53:10,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:53:10,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:53:10,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:53:10,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 10:53:10,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:53:10,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:53:10,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:53:10,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:53:10,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:53:10,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:53:10,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 10:53:10,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:53:10,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 10:53:10,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:53:10,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:53:10,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:53:10,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:53:10,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:53:10,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 10:53:10,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:53:10,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:53:10,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:53:10,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:53:10,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 10:53:10,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:53:10,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 10:53:10,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:53:10,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:53:10,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:53:10,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:53:10,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 10:53:10,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:53:10,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 10:53:10,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:53:10,649 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:53:10,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 10:53:10,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 10:53:10,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 10:53:10,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:53:10,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:53:10,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:53:10,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:53:10,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:53:10,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:53:10,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:53:10,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:53:10,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:53:10,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:53:10,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:53:10,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:53:10,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:53:10,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:53:10,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 10:53:10,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:53:10,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:53:10,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:53:10,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:53:10,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:53:10,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:53:10,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:53:10,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:53:10,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:53:10,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:53:10,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:53:10,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:53:10,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-25 10:53:10,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:53:10,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:53:10,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:53:10,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:53:10,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:53:10,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 10:53:10,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:53:10,679 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:53:10,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:53:10,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:53:10,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:53:10,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:53:10,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 10:53:10,802 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [876551420] [2020-09-25 10:53:10,802 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:53:10,802 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 10:53:10,804 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137176175] [2020-09-25 10:53:10,805 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 10:53:10,806 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:53:10,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 10:53:10,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-25 10:53:10,807 INFO L87 Difference]: Start difference. First operand 301 states and 330 transitions. Second operand 11 states. [2020-09-25 10:53:11,586 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:53:12,847 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 10:53:13,189 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 10:53:13,552 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 10:53:13,864 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 10:53:14,176 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 10:53:14,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:53:14,558 INFO L93 Difference]: Finished difference Result 507 states and 592 transitions. [2020-09-25 10:53:14,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 10:53:14,559 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 171 [2020-09-25 10:53:14,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:53:14,560 INFO L225 Difference]: With dead ends: 507 [2020-09-25 10:53:14,560 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 10:53:14,568 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=176, Invalid=424, Unknown=0, NotChecked=0, Total=600 [2020-09-25 10:53:14,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 10:53:14,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 10:53:14,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 10:53:14,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 10:53:14,569 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 171 [2020-09-25 10:53:14,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:53:14,570 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 10:53:14,570 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 10:53:14,570 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 10:53:14,570 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 10:53:14,570 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 10:53:14,573 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 10:53:14,788 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 10:53:14,963 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 10:53:15,145 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 10:53:15,325 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 10:53:15,501 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 10:53:15,795 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 9 [2020-09-25 10:53:15,948 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 10:53:16,112 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 10:53:16,277 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 10:53:16,433 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 10:53:16,594 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 10:53:16,760 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 10:53:16,915 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 10:53:17,073 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 10:53:17,239 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 10:53:17,398 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 10:53:17,555 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 10:53:17,708 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 10:53:17,871 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 10:53:18,147 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 195 [2020-09-25 10:53:18,423 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 195 [2020-09-25 10:53:18,767 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-09-25 10:53:19,139 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 195 [2020-09-25 10:53:19,482 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-09-25 10:53:19,823 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-09-25 10:53:20,094 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 195 [2020-09-25 10:53:20,632 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-09-25 10:53:20,787 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 10:53:20,949 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 10:53:21,111 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 10:53:21,264 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 10:53:21,427 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 10:53:21,590 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 10:53:21,752 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 10:53:21,914 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 10:53:22,076 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 10:53:22,336 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 9 [2020-09-25 10:53:22,499 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 10:53:22,661 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 10:53:22,823 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 10:53:22,977 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 10:53:23,153 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 10:53:23,308 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 10:53:23,498 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 10:53:23,660 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 10:53:23,822 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 10:53:23,980 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 10:53:24,236 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 9 [2020-09-25 10:53:24,506 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 9 [2020-09-25 10:53:24,660 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 10:53:24,823 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 10:53:24,986 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 10:53:25,150 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 10:53:25,313 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 10:53:25,474 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 10:53:25,640 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 10:53:25,804 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 10:53:26,088 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 194 [2020-09-25 10:53:26,369 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 194 [2020-09-25 10:53:26,773 WARN L193 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 191 [2020-09-25 10:53:27,149 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 194 [2020-09-25 10:53:27,554 WARN L193 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 191 [2020-09-25 10:53:27,959 WARN L193 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 191 [2020-09-25 10:53:28,239 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 194 [2020-09-25 10:53:28,837 WARN L193 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 191 [2020-09-25 10:53:28,999 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 10:53:29,156 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 10:53:29,318 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 10:53:29,476 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 10:53:29,632 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 10:53:29,784 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 10:53:29,942 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 10:53:30,099 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 10:53:30,256 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 10:53:30,408 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 10:53:30,565 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 10:53:30,717 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 10:53:30,871 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 10:53:31,034 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 10:53:31,283 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 14 [2020-09-25 10:53:31,724 WARN L193 SmtUtils]: Spent 437.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 11 [2020-09-25 10:53:31,940 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 26 [2020-09-25 10:53:32,214 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 26 [2020-09-25 10:53:32,573 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 10:53:33,108 WARN L193 SmtUtils]: Spent 529.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 25 [2020-09-25 10:53:33,591 WARN L193 SmtUtils]: Spent 466.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 25 [2020-09-25 10:53:34,007 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 12 [2020-09-25 10:53:34,254 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 26 [2020-09-25 10:53:34,501 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 26 [2020-09-25 10:53:34,920 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 12 [2020-09-25 10:53:35,343 WARN L193 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 11