/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product34.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 07:29:42,245 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:29:42,250 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:29:42,299 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:29:42,299 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:29:42,310 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:29:42,313 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:29:42,317 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:29:42,320 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:29:42,324 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:29:42,325 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:29:42,326 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:29:42,326 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:29:42,329 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:29:42,332 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:29:42,335 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:29:42,337 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:29:42,338 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:29:42,339 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:29:42,349 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:29:42,351 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:29:42,353 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:29:42,354 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:29:42,354 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:29:42,357 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:29:42,358 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:29:42,358 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:29:42,361 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:29:42,363 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:29:42,366 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:29:42,366 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:29:42,367 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:29:42,368 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:29:42,368 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:29:42,370 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:29:42,370 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:29:42,371 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:29:42,371 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:29:42,371 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:29:42,372 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:29:42,374 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:29:42,375 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 07:29:42,421 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:29:42,422 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:29:42,424 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:29:42,424 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:29:42,424 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:29:42,425 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:29:42,425 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:29:42,425 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:29:42,426 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:29:42,426 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:29:42,427 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:29:42,427 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:29:42,427 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:29:42,428 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:29:42,428 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:29:42,428 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:29:42,429 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:29:42,429 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:29:42,429 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:29:42,429 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:29:42,429 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:29:42,430 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:29:42,430 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:29:42,430 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:29:42,430 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:29:42,431 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:29:42,431 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:29:42,431 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:29:42,431 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:29:42,431 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; [2020-09-25 07:29:42,896 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:29:42,923 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:29:42,929 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:29:42,931 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:29:42,931 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:29:42,932 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product34.cil.c [2020-09-25 07:29:43,031 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/46d90e9d8/ed3c6a67a33d41939cc393cc346d5d66/FLAGa4da18d53 [2020-09-25 07:29:43,646 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:29:43,647 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product34.cil.c [2020-09-25 07:29:43,663 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/46d90e9d8/ed3c6a67a33d41939cc393cc346d5d66/FLAGa4da18d53 [2020-09-25 07:29:43,946 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/46d90e9d8/ed3c6a67a33d41939cc393cc346d5d66 [2020-09-25 07:29:43,958 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:29:43,965 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:29:43,968 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:29:43,968 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:29:43,973 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:29:43,974 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:29:43" (1/1) ... [2020-09-25 07:29:43,978 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e7dc6d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:29:43, skipping insertion in model container [2020-09-25 07:29:43,978 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:29:43" (1/1) ... [2020-09-25 07:29:43,987 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:29:44,046 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:29:44,549 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:29:44,564 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:29:44,646 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:29:44,681 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:29:44,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:29:44 WrapperNode [2020-09-25 07:29:44,682 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:29:44,683 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:29:44,683 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:29:44,684 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:29:44,701 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:29:44" (1/1) ... [2020-09-25 07:29:44,701 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:29:44" (1/1) ... [2020-09-25 07:29:44,722 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:29:44" (1/1) ... [2020-09-25 07:29:44,723 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:29:44" (1/1) ... [2020-09-25 07:29:44,770 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:29:44" (1/1) ... [2020-09-25 07:29:44,786 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:29:44" (1/1) ... [2020-09-25 07:29:44,794 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:29:44" (1/1) ... [2020-09-25 07:29:44,814 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:29:44,817 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:29:44,817 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:29:44,818 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:29:44,821 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:29:44" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:29:44,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:29:44,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:29:44,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 07:29:44,918 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 07:29:44,918 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 07:29:44,918 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 07:29:44,918 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 07:29:44,918 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:29:44,919 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 07:29:44,919 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 07:29:44,919 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 07:29:44,919 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 07:29:44,919 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 07:29:44,920 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 07:29:44,920 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 07:29:44,920 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 07:29:44,920 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 07:29:44,920 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 07:29:44,921 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 07:29:44,921 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 07:29:44,921 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 07:29:44,921 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 07:29:44,921 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 07:29:44,922 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 07:29:44,922 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 07:29:44,922 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 07:29:44,922 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 07:29:44,922 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 07:29:44,923 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 07:29:44,923 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 07:29:44,923 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 07:29:44,923 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 07:29:44,923 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 07:29:44,923 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 07:29:44,924 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 07:29:44,924 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 07:29:44,924 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 07:29:44,924 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 07:29:44,924 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 07:29:44,924 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:29:44,925 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:29:44,925 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 07:29:44,925 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 07:29:44,925 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 07:29:44,925 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 07:29:44,925 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 07:29:44,926 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 07:29:44,926 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 07:29:44,926 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 07:29:44,926 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 07:29:44,926 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 07:29:44,926 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 07:29:44,927 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 07:29:44,927 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 07:29:44,927 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 07:29:44,927 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:29:44,927 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 07:29:44,927 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 07:29:44,928 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 07:29:44,928 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 07:29:44,928 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 07:29:44,928 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 07:29:44,928 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 07:29:44,928 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 07:29:44,928 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 07:29:44,929 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 07:29:44,929 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 07:29:44,929 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 07:29:44,929 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 07:29:44,929 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 07:29:44,930 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 07:29:44,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 07:29:44,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 07:29:44,930 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 07:29:44,930 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 07:29:44,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 07:29:44,931 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 07:29:44,931 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 07:29:44,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 07:29:44,931 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 07:29:44,931 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 07:29:44,931 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 07:29:44,932 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 07:29:44,932 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 07:29:44,932 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 07:29:44,932 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 07:29:44,932 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 07:29:44,932 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 07:29:44,933 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 07:29:44,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:29:44,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 07:29:44,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:29:46,099 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:29:46,099 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 07:29:46,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:29:46 BoogieIcfgContainer [2020-09-25 07:29:46,112 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:29:46,113 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:29:46,114 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:29:46,118 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:29:46,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:29:43" (1/3) ... [2020-09-25 07:29:46,120 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fccd68d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:29:46, skipping insertion in model container [2020-09-25 07:29:46,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:29:44" (2/3) ... [2020-09-25 07:29:46,121 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fccd68d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:29:46, skipping insertion in model container [2020-09-25 07:29:46,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:29:46" (3/3) ... [2020-09-25 07:29:46,124 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product34.cil.c [2020-09-25 07:29:46,133 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:29:46,144 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 07:29:46,163 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 07:29:46,194 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:29:46,195 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:29:46,195 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:29:46,195 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:29:46,195 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:29:46,195 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:29:46,195 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:29:46,195 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:29:46,221 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states. [2020-09-25 07:29:46,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 07:29:46,238 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:29:46,240 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 07:29:46,240 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:29:46,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:29:46,249 INFO L82 PathProgramCache]: Analyzing trace with hash 2110285638, now seen corresponding path program 1 times [2020-09-25 07:29:46,260 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:29:46,261 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1522666406] [2020-09-25 07:29:46,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:29:46,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:46,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:47,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:48,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:49,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:50,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:51,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:51,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 07:29:51,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:29:51,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-09-25 07:29:51,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:51,637 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:51,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:51,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 07:29:51,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:51,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-25 07:29:52,291 WARN L193 SmtUtils]: Spent 462.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:29:52,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:29:52,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:52,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:52,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:52,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:29:52,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:52,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-09-25 07:29:52,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:52,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:52,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:52,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:52,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:52,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:52,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:29:52,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:52,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:52,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:52,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:29:52,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:52,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:29:52,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:52,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:52,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:52,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:52,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:52,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:52,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:29:52,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:52,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:52,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:52,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:29:52,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:52,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:29:52,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:52,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:52,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:52,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:52,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:52,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:52,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:29:52,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:52,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:52,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:52,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:29:52,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:52,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 07:29:52,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:52,594 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:52,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:52,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:52,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:52,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:29:52,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:29:52,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:52,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:52,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:52,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:29:52,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:52,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:29:52,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:52,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:52,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:52,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:52,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:52,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:29:52,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:29:52,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:52,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:52,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:52,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:29:52,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:52,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:29:52,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:52,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:52,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:52,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:52,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:52,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:29:52,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 07:29:52,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:52,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:52,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:52,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:29:52,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:52,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:29:52,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:52,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:52,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:52,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:29:52,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:52,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:29:52,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 07:29:52,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:52,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:52,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:52,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:29:52,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:52,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:29:52,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:52,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:52,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:52,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:29:52,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:52,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:29:52,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:29:52,710 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1522666406] [2020-09-25 07:29:52,714 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:29:52,714 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 07:29:52,716 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483641587] [2020-09-25 07:29:52,730 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 07:29:52,731 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:29:52,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 07:29:52,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:29:52,772 INFO L87 Difference]: Start difference. First operand 297 states. Second operand 4 states. [2020-09-25 07:29:54,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:29:54,308 INFO L93 Difference]: Finished difference Result 442 states and 524 transitions. [2020-09-25 07:29:54,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 07:29:54,310 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2020-09-25 07:29:54,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:29:54,332 INFO L225 Difference]: With dead ends: 442 [2020-09-25 07:29:54,332 INFO L226 Difference]: Without dead ends: 287 [2020-09-25 07:29:54,341 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:29:54,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-09-25 07:29:54,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 240. [2020-09-25 07:29:54,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2020-09-25 07:29:54,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 259 transitions. [2020-09-25 07:29:54,544 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 259 transitions. Word has length 148 [2020-09-25 07:29:54,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:29:54,557 INFO L479 AbstractCegarLoop]: Abstraction has 240 states and 259 transitions. [2020-09-25 07:29:54,558 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 07:29:54,558 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 259 transitions. [2020-09-25 07:29:54,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-09-25 07:29:54,566 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:29:54,568 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] [2020-09-25 07:29:54,569 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:29:54,569 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:29:54,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:29:54,570 INFO L82 PathProgramCache]: Analyzing trace with hash 16536712, now seen corresponding path program 1 times [2020-09-25 07:29:54,570 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:29:54,570 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1427429655] [2020-09-25 07:29:54,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:29:54,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:54,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:54,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:56,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:57,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:57,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:59,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:59,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-25 07:29:59,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:29:59,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-09-25 07:29:59,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:59,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:59,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:29:59,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 07:29:59,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 07:29:59,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:00,043 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:30:00,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:30:00,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:00,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:00,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:00,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:30:00,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:00,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-09-25 07:30:00,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:00,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:00,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:00,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:00,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:00,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:00,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:30:00,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:00,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:00,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:00,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:30:00,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:00,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:30:00,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:00,203 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:00,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:00,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:00,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:00,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:00,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:30:00,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:00,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:00,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:00,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:30:00,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:00,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:30:00,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:00,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:00,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:00,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:00,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:00,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:00,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:30:00,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:00,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:00,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:00,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:30:00,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:00,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:30:00,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:00,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:00,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:00,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:00,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:00,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:00,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:30:00,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:00,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:00,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:00,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:30:00,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:00,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:30:00,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:00,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:00,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:00,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:00,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:00,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:00,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:30:00,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:00,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:00,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:00,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:30:00,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:00,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:30:00,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:00,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:00,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:00,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:00,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:00,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:00,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 07:30:00,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:00,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:00,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:00,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:30:00,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:00,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:30:00,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:00,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:00,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:00,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:30:00,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:00,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:00,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 07:30:00,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:00,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:00,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:00,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:30:00,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:00,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:30:00,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:00,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:00,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:00,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:30:00,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:00,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:00,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:30:00,285 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1427429655] [2020-09-25 07:30:00,285 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:30:00,285 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 07:30:00,286 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221806300] [2020-09-25 07:30:00,288 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:30:00,288 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:30:00,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:30:00,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:30:00,289 INFO L87 Difference]: Start difference. First operand 240 states and 259 transitions. Second operand 5 states. [2020-09-25 07:30:00,947 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:30:01,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:30:01,752 INFO L93 Difference]: Finished difference Result 367 states and 415 transitions. [2020-09-25 07:30:01,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 07:30:01,753 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-09-25 07:30:01,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:30:01,757 INFO L225 Difference]: With dead ends: 367 [2020-09-25 07:30:01,757 INFO L226 Difference]: Without dead ends: 276 [2020-09-25 07:30:01,759 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:30:01,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2020-09-25 07:30:01,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 230. [2020-09-25 07:30:01,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-09-25 07:30:01,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 246 transitions. [2020-09-25 07:30:01,802 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 246 transitions. Word has length 149 [2020-09-25 07:30:01,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:30:01,802 INFO L479 AbstractCegarLoop]: Abstraction has 230 states and 246 transitions. [2020-09-25 07:30:01,803 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:30:01,803 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 246 transitions. [2020-09-25 07:30:01,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-25 07:30:01,806 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:30:01,806 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] [2020-09-25 07:30:01,806 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:30:01,806 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:30:01,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:30:01,807 INFO L82 PathProgramCache]: Analyzing trace with hash -1541802730, now seen corresponding path program 1 times [2020-09-25 07:30:01,807 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:30:01,807 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1545664842] [2020-09-25 07:30:01,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:30:01,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:01,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:02,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:02,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:03,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:04,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:06,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:06,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-09-25 07:30:06,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:30:06,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 07:30:06,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:06,867 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:06,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:30:06,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-25 07:30:06,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:30:06,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:07,188 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:30:07,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:30:07,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:07,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:07,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:07,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:30:07,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:07,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-25 07:30:07,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:07,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:07,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:07,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:07,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:07,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:07,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:30:07,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:07,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:07,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:07,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:30:07,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:07,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:30:07,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:07,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:07,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:07,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:07,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:07,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:07,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:30:07,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:07,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:07,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:07,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:30:07,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:07,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:30:07,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:07,337 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:07,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:07,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:07,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:07,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:07,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:30:07,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:07,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:07,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:07,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:30:07,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:07,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:30:07,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:07,345 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:07,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:07,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:07,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:07,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:07,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:30:07,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:07,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:07,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:07,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:30:07,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:07,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:30:07,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:07,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:07,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:07,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:07,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:07,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:07,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:30:07,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:07,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:07,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:07,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:30:07,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:07,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:30:07,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:07,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:07,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:07,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:07,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:07,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:07,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 07:30:07,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:07,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:07,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:07,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:30:07,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:07,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:30:07,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:07,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:07,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:30:07,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:07,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 07:30:07,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:07,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 07:30:07,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:07,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:07,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:07,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:30:07,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:07,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:30:07,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:07,394 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:07,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:07,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:30:07,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:07,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:07,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 07:30:07,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:07,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:07,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:07,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:30:07,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:07,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:30:07,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:07,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:07,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:07,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:30:07,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:07,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:07,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:30:07,436 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1545664842] [2020-09-25 07:30:07,436 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:30:07,436 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 07:30:07,437 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804426917] [2020-09-25 07:30:07,437 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 07:30:07,437 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:30:07,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 07:30:07,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 07:30:07,438 INFO L87 Difference]: Start difference. First operand 230 states and 246 transitions. Second operand 6 states. [2020-09-25 07:30:07,975 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:30:08,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:30:08,929 INFO L93 Difference]: Finished difference Result 414 states and 480 transitions. [2020-09-25 07:30:08,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 07:30:08,929 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 162 [2020-09-25 07:30:08,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:30:08,933 INFO L225 Difference]: With dead ends: 414 [2020-09-25 07:30:08,933 INFO L226 Difference]: Without dead ends: 299 [2020-09-25 07:30:08,935 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 07:30:08,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2020-09-25 07:30:08,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 230. [2020-09-25 07:30:08,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-09-25 07:30:08,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 245 transitions. [2020-09-25 07:30:08,981 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 245 transitions. Word has length 162 [2020-09-25 07:30:08,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:30:08,982 INFO L479 AbstractCegarLoop]: Abstraction has 230 states and 245 transitions. [2020-09-25 07:30:08,982 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 07:30:08,982 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 245 transitions. [2020-09-25 07:30:08,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-09-25 07:30:08,985 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:30:08,985 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] [2020-09-25 07:30:08,985 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 07:30:08,986 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:30:08,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:30:08,986 INFO L82 PathProgramCache]: Analyzing trace with hash -1425032231, now seen corresponding path program 1 times [2020-09-25 07:30:08,986 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:30:08,987 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [908419109] [2020-09-25 07:30:08,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:30:09,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:09,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:09,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:10,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:11,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:11,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:11,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:14,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:14,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-09-25 07:30:14,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 07:30:14,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5037 [2020-09-25 07:30:14,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:14,078 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:14,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:30:14,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 159 [2020-09-25 07:30:14,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:30:14,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:14,420 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:30:14,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:30:14,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:14,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:14,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:14,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:30:14,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:14,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-09-25 07:30:14,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:14,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:14,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:14,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:14,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:14,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:14,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:30:14,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:14,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:14,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:14,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:30:14,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:14,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:30:14,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:14,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:14,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:14,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:14,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:14,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:14,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:30:14,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:14,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:14,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:14,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:30:14,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:14,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:30:14,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:14,585 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:14,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:14,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:14,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:14,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:14,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:30:14,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:14,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:14,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:14,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:30:14,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:14,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:30:14,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:14,594 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:14,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:14,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:14,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:14,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:14,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:30:14,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:14,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:14,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:14,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:30:14,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:14,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:30:14,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:14,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:14,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:14,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:14,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:14,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:14,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:30:14,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:14,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:14,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:14,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:30:14,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:14,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:30:14,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:14,617 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:14,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:14,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:14,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:14,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:14,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 07:30:14,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:14,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:14,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:14,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:30:14,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:14,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:30:14,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:14,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:14,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:14,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:14,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:14,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:14,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 07:30:14,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:14,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:14,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:14,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 07:30:14,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:14,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:30:14,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:14,657 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:14,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:30:14,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 07:30:14,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 07:30:14,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:14,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:30:14,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:14,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:14,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:14,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:30:14,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:14,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:30:14,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:14,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:14,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:30:14,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:14,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:30:14,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:14,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 07:30:14,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:14,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:14,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:14,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:30:14,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:14,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:30:14,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:14,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:14,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:14,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:30:14,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:14,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:14,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-25 07:30:14,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:14,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:14,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:14,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:30:14,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:14,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:30:14,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:14,708 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:14,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:14,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:30:14,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:14,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:14,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:30:14,740 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [908419109] [2020-09-25 07:30:14,740 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:30:14,740 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 07:30:14,740 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152820578] [2020-09-25 07:30:14,741 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 07:30:14,741 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:30:14,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 07:30:14,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-09-25 07:30:14,742 INFO L87 Difference]: Start difference. First operand 230 states and 245 transitions. Second operand 9 states. [2020-09-25 07:30:15,238 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:30:16,940 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:30:17,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:30:17,807 INFO L93 Difference]: Finished difference Result 593 states and 710 transitions. [2020-09-25 07:30:17,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 07:30:17,807 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 170 [2020-09-25 07:30:17,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:30:17,813 INFO L225 Difference]: With dead ends: 593 [2020-09-25 07:30:17,813 INFO L226 Difference]: Without dead ends: 478 [2020-09-25 07:30:17,815 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=140, Invalid=322, Unknown=0, NotChecked=0, Total=462 [2020-09-25 07:30:17,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2020-09-25 07:30:17,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 337. [2020-09-25 07:30:17,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 337 states. [2020-09-25 07:30:17,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 364 transitions. [2020-09-25 07:30:17,861 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 364 transitions. Word has length 170 [2020-09-25 07:30:17,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:30:17,862 INFO L479 AbstractCegarLoop]: Abstraction has 337 states and 364 transitions. [2020-09-25 07:30:17,862 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 07:30:17,862 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 364 transitions. [2020-09-25 07:30:17,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-25 07:30:17,865 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:30:17,865 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:30:17,865 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 07:30:17,865 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:30:17,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:30:17,866 INFO L82 PathProgramCache]: Analyzing trace with hash 1572233247, now seen corresponding path program 1 times [2020-09-25 07:30:17,866 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:30:17,866 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1244338388] [2020-09-25 07:30:17,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:30:17,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:17,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:18,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:18,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:19,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:21,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:22,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:22,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-09-25 07:30:22,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:30:22,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-25 07:30:22,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:22,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:22,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:30:22,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-25 07:30:22,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-09-25 07:30:22,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:30:23,260 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:30:23,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:30:23,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:23,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:23,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:23,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:30:23,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:23,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-25 07:30:23,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:23,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:23,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:23,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:23,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:23,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:23,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:30:23,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:23,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:23,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:23,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:30:23,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:23,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:30:23,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:23,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:23,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:23,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:23,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:23,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:23,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:30:23,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:23,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:23,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:23,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:30:23,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:23,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:30:23,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:23,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:23,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:23,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:23,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:23,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:23,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:30:23,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:23,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:23,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:23,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:30:23,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:23,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:30:23,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:23,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:23,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:23,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:23,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:23,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:23,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:30:23,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:23,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:23,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:23,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:30:23,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:23,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:30:23,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:23,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:23,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:23,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:23,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:23,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:23,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:30:23,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:23,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:23,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:23,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:30:23,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:23,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:30:23,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:23,475 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:23,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:30:23,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:23,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 07:30:23,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:23,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 07:30:23,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:23,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:23,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:23,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:30:23,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:23,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 07:30:23,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:23,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:23,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:30:23,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:23,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 07:30:23,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:23,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 07:30:23,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:23,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:23,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:23,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 07:30:23,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:23,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-25 07:30:23,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:23,581 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:23,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:30:23,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:23,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-25 07:30:23,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:30:23,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:30:23,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:23,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:23,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:23,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 07:30:23,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:23,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 07:30:23,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:23,604 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:23,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:23,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:23,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:23,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:23,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:30:23,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:23,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:23,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:23,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:30:23,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:23,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:30:23,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:23,617 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:23,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:23,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:23,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:23,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:23,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 07:30:23,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:23,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:23,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:23,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:30:23,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:23,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:30:23,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:23,626 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:23,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:23,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:23,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:23,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:23,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-25 07:30:23,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:23,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:23,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:23,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:30:23,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:23,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:30:23,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:23,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:23,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:30:23,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:23,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:30:23,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:23,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-25 07:30:23,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:23,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:23,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:23,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:30:23,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:23,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:30:23,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:23,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:23,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:30:23,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:23,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:30:23,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:23,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:30:23,742 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1244338388] [2020-09-25 07:30:23,742 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:30:23,742 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 07:30:23,743 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114746675] [2020-09-25 07:30:23,744 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 07:30:23,745 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:30:23,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 07:30:23,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:30:23,746 INFO L87 Difference]: Start difference. First operand 337 states and 364 transitions. Second operand 7 states. [2020-09-25 07:30:24,351 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:30:26,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:30:26,658 INFO L93 Difference]: Finished difference Result 918 states and 1179 transitions. [2020-09-25 07:30:26,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 07:30:26,659 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 194 [2020-09-25 07:30:26,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:30:26,671 INFO L225 Difference]: With dead ends: 918 [2020-09-25 07:30:26,671 INFO L226 Difference]: Without dead ends: 915 [2020-09-25 07:30:26,674 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 31 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2020-09-25 07:30:26,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 915 states. [2020-09-25 07:30:26,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 915 to 565. [2020-09-25 07:30:26,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 565 states. [2020-09-25 07:30:26,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 627 transitions. [2020-09-25 07:30:26,781 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 627 transitions. Word has length 194 [2020-09-25 07:30:26,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:30:26,782 INFO L479 AbstractCegarLoop]: Abstraction has 565 states and 627 transitions. [2020-09-25 07:30:26,782 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 07:30:26,782 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 627 transitions. [2020-09-25 07:30:26,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2020-09-25 07:30:26,787 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:30:26,787 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:30:26,788 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 07:30:26,788 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:30:26,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:30:26,788 INFO L82 PathProgramCache]: Analyzing trace with hash -690696280, now seen corresponding path program 1 times [2020-09-25 07:30:26,788 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:30:26,789 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1630323081] [2020-09-25 07:30:26,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:30:26,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:26,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:27,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:27,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking...