/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=0.2 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product38.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 04:04:01,127 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 04:04:01,131 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 04:04:01,158 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 04:04:01,158 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 04:04:01,160 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 04:04:01,161 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 04:04:01,163 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 04:04:01,165 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 04:04:01,166 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 04:04:01,168 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 04:04:01,169 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 04:04:01,169 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 04:04:01,171 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 04:04:01,172 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 04:04:01,173 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 04:04:01,174 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 04:04:01,175 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 04:04:01,177 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 04:04:01,179 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 04:04:01,181 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 04:04:01,182 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 04:04:01,184 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 04:04:01,185 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 04:04:01,187 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 04:04:01,188 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 04:04:01,188 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 04:04:01,189 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 04:04:01,189 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 04:04:01,190 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 04:04:01,191 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 04:04:01,192 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 04:04:01,193 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 04:04:01,194 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 04:04:01,195 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 04:04:01,195 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 04:04:01,196 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 04:04:01,196 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 04:04:01,197 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 04:04:01,198 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 04:04:01,199 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 04:04:01,200 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 04:04:01,234 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 04:04:01,234 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 04:04:01,235 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 04:04:01,236 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 04:04:01,236 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 04:04:01,236 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 04:04:01,236 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 04:04:01,237 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 04:04:01,237 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 04:04:01,238 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 04:04:01,239 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 04:04:01,239 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 04:04:01,239 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 04:04:01,240 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 04:04:01,240 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 04:04:01,241 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 04:04:01,241 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 04:04:01,241 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 04:04:01,241 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 04:04:01,241 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 04:04:01,242 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 04:04:01,242 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:04:01,242 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 04:04:01,242 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 04:04:01,242 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 04:04:01,243 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 04:04:01,243 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 04:04:01,243 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 04:04:01,243 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 04:04:01,243 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=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; [2020-09-25 04:04:01,745 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 04:04:01,772 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 04:04:01,778 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 04:04:01,780 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 04:04:01,780 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 04:04:01,781 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product38.cil.c [2020-09-25 04:04:01,884 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/26cedb055/08c2e85de7cb43289bb9059053b5317f/FLAG4a0ddd50a [2020-09-25 04:04:02,504 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 04:04:02,505 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product38.cil.c [2020-09-25 04:04:02,520 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/26cedb055/08c2e85de7cb43289bb9059053b5317f/FLAG4a0ddd50a [2020-09-25 04:04:02,795 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/26cedb055/08c2e85de7cb43289bb9059053b5317f [2020-09-25 04:04:02,812 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 04:04:02,820 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 04:04:02,824 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 04:04:02,824 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 04:04:02,830 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 04:04:02,831 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:04:02" (1/1) ... [2020-09-25 04:04:02,838 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53926226 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:04:02, skipping insertion in model container [2020-09-25 04:04:02,838 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:04:02" (1/1) ... [2020-09-25 04:04:02,851 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 04:04:02,937 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 04:04:03,501 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:04:03,517 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 04:04:03,608 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:04:03,656 INFO L208 MainTranslator]: Completed translation [2020-09-25 04:04:03,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:04:03 WrapperNode [2020-09-25 04:04:03,657 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 04:04:03,658 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 04:04:03,658 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 04:04:03,658 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 04:04:03,677 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:04:03" (1/1) ... [2020-09-25 04:04:03,677 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:04:03" (1/1) ... [2020-09-25 04:04:03,699 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:04:03" (1/1) ... [2020-09-25 04:04:03,700 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:04:03" (1/1) ... [2020-09-25 04:04:03,754 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:04:03" (1/1) ... [2020-09-25 04:04:03,776 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:04:03" (1/1) ... [2020-09-25 04:04:03,781 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:04:03" (1/1) ... [2020-09-25 04:04:03,789 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 04:04:03,790 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 04:04:03,790 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 04:04:03,791 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 04:04:03,792 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:04:03" (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 04:04:03,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 04:04:03,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 04:04:03,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 04:04:03,881 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 04:04:03,881 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 04:04:03,881 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 04:04:03,881 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 04:04:03,882 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 04:04:03,883 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 04:04:03,883 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 04:04:03,883 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 04:04:03,884 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 04:04:03,884 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 04:04:03,884 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 04:04:03,884 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 04:04:03,885 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 04:04:03,886 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 04:04:03,886 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 04:04:03,886 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 04:04:03,886 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 04:04:03,887 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 04:04:03,887 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 04:04:03,888 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 04:04:03,888 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 04:04:03,890 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 04:04:03,890 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 04:04:03,891 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 04:04:03,891 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 04:04:03,891 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 04:04:03,891 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 04:04:03,891 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 04:04:03,891 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 04:04:03,892 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 04:04:03,892 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 04:04:03,892 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 04:04:03,892 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 04:04:03,892 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 04:04:03,892 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 04:04:03,893 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 04:04:03,893 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 04:04:03,893 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 04:04:03,893 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 04:04:03,893 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 04:04:03,893 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 04:04:03,894 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 04:04:03,894 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 04:04:03,894 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 04:04:03,894 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 04:04:03,895 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 04:04:03,895 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 04:04:03,896 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 04:04:03,896 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 04:04:03,896 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 04:04:03,896 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 04:04:03,897 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 04:04:03,897 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 04:04:03,897 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 04:04:03,897 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 04:04:03,897 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 04:04:03,897 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 04:04:03,897 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 04:04:03,898 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 04:04:03,898 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 04:04:03,898 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 04:04:03,898 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 04:04:03,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 04:04:03,899 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 04:04:03,899 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 04:04:03,899 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 04:04:03,900 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 04:04:03,900 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 04:04:03,902 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 04:04:03,902 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 04:04:03,902 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 04:04:03,902 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 04:04:03,902 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 04:04:03,903 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 04:04:03,903 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 04:04:03,903 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 04:04:03,903 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 04:04:03,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 04:04:03,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 04:04:03,904 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 04:04:03,905 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 04:04:03,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 04:04:03,905 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 04:04:03,905 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 04:04:03,905 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 04:04:03,905 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 04:04:03,906 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 04:04:03,906 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 04:04:03,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 04:04:03,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 04:04:03,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 04:04:05,073 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 04:04:05,074 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 04:04:05,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:04:05 BoogieIcfgContainer [2020-09-25 04:04:05,081 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 04:04:05,083 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 04:04:05,083 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 04:04:05,086 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 04:04:05,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 04:04:02" (1/3) ... [2020-09-25 04:04:05,087 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20677508 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:04:05, skipping insertion in model container [2020-09-25 04:04:05,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:04:03" (2/3) ... [2020-09-25 04:04:05,088 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20677508 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:04:05, skipping insertion in model container [2020-09-25 04:04:05,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:04:05" (3/3) ... [2020-09-25 04:04:05,090 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product38.cil.c [2020-09-25 04:04:05,102 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 04:04:05,112 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 04:04:05,134 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 04:04:05,166 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 04:04:05,166 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 04:04:05,166 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 04:04:05,166 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 04:04:05,166 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 04:04:05,166 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 04:04:05,166 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 04:04:05,167 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 04:04:05,191 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states. [2020-09-25 04:04:05,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 04:04:05,209 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:04:05,210 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 04:04:05,211 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:04:05,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:04:05,219 INFO L82 PathProgramCache]: Analyzing trace with hash 837157569, now seen corresponding path program 1 times [2020-09-25 04:04:05,230 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:04:05,231 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2124612917] [2020-09-25 04:04:05,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:04:05,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:05,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:05,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:07,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:08,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:09,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:10,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:10,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 04:04:10,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:04:10,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 04:04:10,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:10,618 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:10,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:10,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 04:04:10,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:10,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 04:04:11,052 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:04:11,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:04:11,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:11,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:11,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:11,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 04:04:11,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:11,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132 [2020-09-25 04:04:11,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:11,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:11,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:11,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:11,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:11,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:11,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 04:04:11,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:11,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:11,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:11,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:04:11,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:11,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 04:04:11,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:11,333 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:11,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:11,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:11,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:11,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:11,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 04:04:11,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:11,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:11,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:11,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:04:11,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:11,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:04:11,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:11,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:11,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:11,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:11,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:11,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:11,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 04:04:11,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:11,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:11,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:11,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:04:11,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:11,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 04:04:11,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:11,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:11,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:11,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:11,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:11,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:11,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 04:04:11,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:11,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:11,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:11,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:04:11,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:11,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:04:11,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:11,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:11,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:11,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:11,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:11,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:11,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 04:04:11,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:11,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:11,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:11,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:04:11,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:11,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:04:11,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:11,396 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:11,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:11,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:11,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:11,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:11,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 04:04:11,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:11,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:11,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:11,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:04:11,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:11,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:04:11,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:11,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:11,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:11,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:04:11,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:11,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:11,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 04:04:11,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:11,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:11,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:11,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:04:11,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:11,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:04:11,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:11,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:11,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:11,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:04:11,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:11,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:11,475 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 04:04:11,476 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2124612917] [2020-09-25 04:04:11,478 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:04:11,479 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 04:04:11,480 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23026106] [2020-09-25 04:04:11,486 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 04:04:11,487 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:04:11,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 04:04:11,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 04:04:11,509 INFO L87 Difference]: Start difference. First operand 314 states. Second operand 4 states. [2020-09-25 04:04:12,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:04:12,979 INFO L93 Difference]: Finished difference Result 490 states and 581 transitions. [2020-09-25 04:04:12,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 04:04:12,982 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2020-09-25 04:04:12,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:04:13,008 INFO L225 Difference]: With dead ends: 490 [2020-09-25 04:04:13,008 INFO L226 Difference]: Without dead ends: 312 [2020-09-25 04:04:13,015 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 04:04:13,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2020-09-25 04:04:13,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 263. [2020-09-25 04:04:13,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263 states. [2020-09-25 04:04:13,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 286 transitions. [2020-09-25 04:04:13,136 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 286 transitions. Word has length 148 [2020-09-25 04:04:13,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:04:13,137 INFO L479 AbstractCegarLoop]: Abstraction has 263 states and 286 transitions. [2020-09-25 04:04:13,137 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 04:04:13,137 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 286 transitions. [2020-09-25 04:04:13,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-09-25 04:04:13,149 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:04:13,150 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 04:04:13,151 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 04:04:13,151 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:04:13,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:04:13,151 INFO L82 PathProgramCache]: Analyzing trace with hash 675807139, now seen corresponding path program 1 times [2020-09-25 04:04:13,152 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:04:13,152 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [924994206] [2020-09-25 04:04:13,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:04:13,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:13,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:13,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:15,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:15,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:16,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:17,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:18,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:18,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-25 04:04:18,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 04:04:18,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-09-25 04:04:18,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:18,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:18,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:04:18,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 04:04:18,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 04:04:18,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:18,568 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:04:18,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:04:18,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:18,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:18,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:18,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 04:04:18,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:18,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-09-25 04:04:18,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:18,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:18,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:18,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:18,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:18,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:18,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 04:04:18,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:18,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:18,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:18,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:04:18,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:18,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:04:18,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:18,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:18,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:18,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:18,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:18,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:18,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 04:04:18,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:18,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:18,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:18,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:04:18,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:18,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:04:18,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:18,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:18,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:18,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:18,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:18,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:18,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 04:04:18,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:18,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:18,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:18,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:04:18,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:18,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:04:18,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:18,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:18,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:18,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:18,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:18,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:18,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 04:04:18,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:18,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:18,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:18,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:04:18,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:18,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:04:18,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:18,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:18,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:18,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:18,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:18,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:18,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 04:04:18,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:18,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:18,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:18,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:04:18,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:18,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:04:18,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:18,793 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:18,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:18,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:18,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:18,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:18,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 04:04:18,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:18,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:18,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:18,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:04:18,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:18,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:04:18,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:18,803 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:18,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:18,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:04:18,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:18,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:18,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 04:04:18,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:18,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:18,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:18,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:04:18,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:18,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:04:18,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:18,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:18,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:18,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:04:18,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:18,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:18,845 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 04:04:18,845 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [924994206] [2020-09-25 04:04:18,846 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:04:18,846 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 04:04:18,846 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204299610] [2020-09-25 04:04:18,850 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 04:04:18,850 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:04:18,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 04:04:18,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 04:04:18,851 INFO L87 Difference]: Start difference. First operand 263 states and 286 transitions. Second operand 5 states. [2020-09-25 04:04:19,607 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:04:20,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:04:20,728 INFO L93 Difference]: Finished difference Result 415 states and 472 transitions. [2020-09-25 04:04:20,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 04:04:20,730 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-09-25 04:04:20,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:04:20,734 INFO L225 Difference]: With dead ends: 415 [2020-09-25 04:04:20,735 INFO L226 Difference]: Without dead ends: 301 [2020-09-25 04:04:20,737 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 04:04:20,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2020-09-25 04:04:20,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 253. [2020-09-25 04:04:20,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2020-09-25 04:04:20,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 273 transitions. [2020-09-25 04:04:20,788 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 273 transitions. Word has length 149 [2020-09-25 04:04:20,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:04:20,788 INFO L479 AbstractCegarLoop]: Abstraction has 253 states and 273 transitions. [2020-09-25 04:04:20,788 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 04:04:20,789 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 273 transitions. [2020-09-25 04:04:20,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-25 04:04:20,792 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:04:20,792 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 04:04:20,792 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 04:04:20,792 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:04:20,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:04:20,793 INFO L82 PathProgramCache]: Analyzing trace with hash 1185263590, now seen corresponding path program 1 times [2020-09-25 04:04:20,793 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:04:20,793 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1471057620] [2020-09-25 04:04:20,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:04:20,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:20,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:21,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:21,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:22,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:23,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:25,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:25,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-09-25 04:04:25,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:04:25,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-09-25 04:04:25,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:25,864 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:25,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:04:25,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-25 04:04:25,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 04:04:25,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:26,154 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:04:26,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:04:26,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:26,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:26,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:26,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 04:04:26,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:26,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-25 04:04:26,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:26,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:26,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:26,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:26,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:26,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:26,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 04:04:26,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:26,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:26,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:26,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:04:26,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:26,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:04:26,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:26,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:26,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:26,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:26,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:26,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:26,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 04:04:26,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:26,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:26,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:26,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:04:26,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:26,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:04:26,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:26,297 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:26,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:26,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:26,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:26,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:26,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 04:04:26,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:26,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:26,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:26,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:04:26,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:26,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:04:26,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:26,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:26,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:26,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:26,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:26,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:04:26,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 04:04:26,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:26,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:26,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:26,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:04:26,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:26,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:04:26,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:26,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:26,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:26,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:26,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:26,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:26,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 04:04:26,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:26,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:26,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:26,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:04:26,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:26,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:04:26,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:26,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:26,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:26,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:26,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:26,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:04:26,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 04:04:26,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:26,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:26,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:26,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:04:26,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:26,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:04:26,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:26,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:26,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:04:26,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:26,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 04:04:26,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:26,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 04:04:26,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:26,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:26,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:26,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:04:26,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:26,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:04:26,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:26,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:26,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:26,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:04:26,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:26,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:26,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 04:04:26,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:26,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:26,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:26,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:04:26,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:26,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:04:26,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:26,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:26,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:26,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:04:26,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:26,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:04:26,392 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 04:04:26,393 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1471057620] [2020-09-25 04:04:26,393 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:04:26,393 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 04:04:26,394 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599045819] [2020-09-25 04:04:26,394 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 04:04:26,394 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:04:26,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 04:04:26,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 04:04:26,395 INFO L87 Difference]: Start difference. First operand 253 states and 273 transitions. Second operand 6 states. [2020-09-25 04:04:26,893 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 04:04:28,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:04:28,098 INFO L93 Difference]: Finished difference Result 462 states and 537 transitions. [2020-09-25 04:04:28,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 04:04:28,098 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 162 [2020-09-25 04:04:28,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:04:28,103 INFO L225 Difference]: With dead ends: 462 [2020-09-25 04:04:28,103 INFO L226 Difference]: Without dead ends: 324 [2020-09-25 04:04:28,105 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 04:04:28,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2020-09-25 04:04:28,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 253. [2020-09-25 04:04:28,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2020-09-25 04:04:28,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 272 transitions. [2020-09-25 04:04:28,149 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 272 transitions. Word has length 162 [2020-09-25 04:04:28,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:04:28,149 INFO L479 AbstractCegarLoop]: Abstraction has 253 states and 272 transitions. [2020-09-25 04:04:28,150 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 04:04:28,150 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 272 transitions. [2020-09-25 04:04:28,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-09-25 04:04:28,153 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:04:28,153 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] [2020-09-25 04:04:28,153 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 04:04:28,153 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:04:28,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:04:28,154 INFO L82 PathProgramCache]: Analyzing trace with hash -323701345, now seen corresponding path program 1 times [2020-09-25 04:04:28,154 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:04:28,154 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [87630340] [2020-09-25 04:04:28,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:04:28,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:28,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:28,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:28,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:30,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:31,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:31,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:31,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:31,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:33,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:33,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 214 [2020-09-25 04:04:33,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 04:04:33,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-09-25 04:04:33,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:33,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:33,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:04:33,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 165 [2020-09-25 04:04:33,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:04:33,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:33,503 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:04:33,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:04:33,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:33,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:33,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:33,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 04:04:33,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:33,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-09-25 04:04:33,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:33,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:33,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:33,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:33,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:33,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:33,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 04:04:33,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:33,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:33,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:33,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:04:33,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:33,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:04:33,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:33,627 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:33,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:33,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:33,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:33,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:33,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 04:04:33,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:33,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:33,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:33,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:04:33,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:33,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:04:33,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:33,632 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:33,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:33,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:33,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:33,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:04:33,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 04:04:33,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:33,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:33,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:33,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:04:33,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:33,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:04:33,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:33,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:33,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:33,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:33,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:33,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:04:33,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 04:04:33,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:33,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:33,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:33,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:04:33,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:33,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:04:33,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:33,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:33,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:33,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:33,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:33,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:04:33,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 04:04:33,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:33,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:33,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:33,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:04:33,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:33,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:04:33,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:33,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:33,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:33,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:33,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:33,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:33,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 04:04:33,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:33,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:33,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:33,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:04:33,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:33,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:04:33,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:33,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:33,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:33,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:33,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:33,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:33,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 04:04:33,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:33,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:33,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:33,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 04:04:33,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:33,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 04:04:33,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:33,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:33,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:04:33,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 04:04:33,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:04:33,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:33,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:04:33,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:33,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:33,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:33,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:04:33,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:33,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:04:33,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:33,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:33,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:04:33,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 04:04:33,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 04:04:33,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:33,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:04:33,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:33,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:33,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:33,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:04:33,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:33,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:04:33,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:33,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:33,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:04:33,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:33,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:04:33,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:33,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-09-25 04:04:33,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:33,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:33,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:33,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:04:33,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:33,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:04:33,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:33,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:33,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:33,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:04:33,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:33,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:04:33,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-09-25 04:04:33,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:33,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:33,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:33,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:04:33,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:33,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:04:33,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:33,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:33,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:33,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:04:33,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:33,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:33,860 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 04:04:33,860 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [87630340] [2020-09-25 04:04:33,861 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:04:33,861 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 04:04:33,861 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066861973] [2020-09-25 04:04:33,862 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 04:04:33,862 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:04:33,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 04:04:33,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-09-25 04:04:33,863 INFO L87 Difference]: Start difference. First operand 253 states and 272 transitions. Second operand 9 states. [2020-09-25 04:04:34,420 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:04:36,265 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 04:04:37,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:04:37,365 INFO L93 Difference]: Finished difference Result 650 states and 780 transitions. [2020-09-25 04:04:37,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-25 04:04:37,366 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 175 [2020-09-25 04:04:37,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:04:37,373 INFO L225 Difference]: With dead ends: 650 [2020-09-25 04:04:37,373 INFO L226 Difference]: Without dead ends: 512 [2020-09-25 04:04:37,376 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=157, Invalid=395, Unknown=0, NotChecked=0, Total=552 [2020-09-25 04:04:37,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2020-09-25 04:04:37,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 371. [2020-09-25 04:04:37,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 371 states. [2020-09-25 04:04:37,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 401 transitions. [2020-09-25 04:04:37,470 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 401 transitions. Word has length 175 [2020-09-25 04:04:37,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:04:37,472 INFO L479 AbstractCegarLoop]: Abstraction has 371 states and 401 transitions. [2020-09-25 04:04:37,472 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 04:04:37,472 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 401 transitions. [2020-09-25 04:04:37,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-09-25 04:04:37,475 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:04:37,475 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, 1, 1, 1, 1, 1] [2020-09-25 04:04:37,476 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 04:04:37,476 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:04:37,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:04:37,476 INFO L82 PathProgramCache]: Analyzing trace with hash -492298253, now seen corresponding path program 1 times [2020-09-25 04:04:37,476 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:04:37,477 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1085731799] [2020-09-25 04:04:37,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:04:37,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:37,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:38,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:38,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:38,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:40,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:41,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:42,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:42,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 242 [2020-09-25 04:04:42,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 04:04:42,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-09-25 04:04:42,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:42,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:42,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:04:42,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 170 [2020-09-25 04:04:42,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-25 04:04:42,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:04:42,958 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:04:42,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:04:42,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:42,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:43,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:43,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 04:04:43,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:43,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-25 04:04:43,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:43,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:43,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:43,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:43,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:43,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:43,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 04:04:43,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:43,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:43,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:43,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:04:43,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:43,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:04:43,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:43,135 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:43,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:43,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:43,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:43,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:43,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 04:04:43,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:43,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:43,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:43,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:04:43,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:43,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:04:43,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:43,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:43,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:43,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:43,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:43,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:43,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 04:04:43,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:43,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:43,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:43,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:04:43,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:43,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:04:43,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:43,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:43,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:43,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:43,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:43,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:43,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 04:04:43,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:43,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:43,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:43,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:04:43,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:43,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:04:43,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:43,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:43,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:43,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:43,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:43,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:43,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 04:04:43,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:43,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:43,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:43,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:04:43,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:43,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:04:43,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:43,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:43,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:43,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:43,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:43,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:43,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 04:04:43,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:43,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:43,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:43,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:04:43,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:43,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:04:43,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:43,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:43,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:43,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:43,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:43,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:43,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 04:04:43,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:43,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:43,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:43,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:43,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 04:04:43,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:04:43,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-09-25 04:04:43,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:43,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:43,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:04:43,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:43,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 04:04:43,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:43,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:04:43,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:43,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:43,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:43,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 04:04:43,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:43,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 04:04:43,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:43,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:43,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:04:43,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:43,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 04:04:43,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:43,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:04:43,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:43,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:43,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:43,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 04:04:43,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:43,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 04:04:43,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:43,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:43,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:04:43,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:43,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 04:04:43,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:04:43,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:04:43,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:43,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:43,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:43,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:04:43,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:43,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:04:43,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:43,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:43,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:43,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:43,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:43,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:43,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 04:04:43,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:43,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:43,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:43,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:04:43,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:43,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:04:43,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:43,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:43,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:04:43,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:43,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:04:43,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:43,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-09-25 04:04:43,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:43,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:43,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:43,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:04:43,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:43,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:04:43,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:43,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:43,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:04:43,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:43,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:04:43,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:43,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-09-25 04:04:43,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:43,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:43,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:43,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:04:43,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:43,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 04:04:43,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:43,431 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:43,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:04:43,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:43,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:04:43,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:43,540 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 04:04:43,541 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1085731799] [2020-09-25 04:04:43,541 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:04:43,541 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 04:04:43,541 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557227290] [2020-09-25 04:04:43,542 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 04:04:43,542 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:04:43,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 04:04:43,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-25 04:04:43,543 INFO L87 Difference]: Start difference. First operand 371 states and 401 transitions. Second operand 11 states. [2020-09-25 04:04:44,072 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 04:04:45,722 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 04:04:46,042 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 04:04:46,378 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 04:04:46,699 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 04:04:47,107 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 04:04:47,468 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 04:04:47,785 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 04:04:48,116 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:04:49,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:04:49,506 INFO L93 Difference]: Finished difference Result 766 states and 904 transitions. [2020-09-25 04:04:49,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-25 04:04:49,507 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 199 [2020-09-25 04:04:49,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:04:49,511 INFO L225 Difference]: With dead ends: 766 [2020-09-25 04:04:49,511 INFO L226 Difference]: Without dead ends: 510 [2020-09-25 04:04:49,513 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=270, Invalid=722, Unknown=0, NotChecked=0, Total=992 [2020-09-25 04:04:49,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2020-09-25 04:04:49,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 369. [2020-09-25 04:04:49,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 369 states. [2020-09-25 04:04:49,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 397 transitions. [2020-09-25 04:04:49,571 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 397 transitions. Word has length 199 [2020-09-25 04:04:49,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:04:49,572 INFO L479 AbstractCegarLoop]: Abstraction has 369 states and 397 transitions. [2020-09-25 04:04:49,572 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 04:04:49,572 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 397 transitions. [2020-09-25 04:04:49,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-09-25 04:04:49,575 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:04:49,575 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, 1, 1, 1, 1, 1, 1] [2020-09-25 04:04:49,576 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 04:04:49,576 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:04:49,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:04:49,576 INFO L82 PathProgramCache]: Analyzing trace with hash -2489358, now seen corresponding path program 1 times [2020-09-25 04:04:49,577 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:04:49,577 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [234623852] [2020-09-25 04:04:49,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:04:49,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:49,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:50,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking...