/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_spec4_product42.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 04:10:29,953 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 04:10:29,957 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 04:10:30,003 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 04:10:30,003 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 04:10:30,011 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 04:10:30,013 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 04:10:30,017 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 04:10:30,020 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 04:10:30,023 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 04:10:30,024 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 04:10:30,025 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 04:10:30,025 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 04:10:30,028 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 04:10:30,031 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 04:10:30,034 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 04:10:30,035 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 04:10:30,036 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 04:10:30,038 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 04:10:30,048 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 04:10:30,050 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 04:10:30,051 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 04:10:30,052 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 04:10:30,053 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 04:10:30,068 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 04:10:30,069 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 04:10:30,069 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 04:10:30,073 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 04:10:30,074 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 04:10:30,074 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 04:10:30,075 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 04:10:30,075 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 04:10:30,080 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 04:10:30,080 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 04:10:30,085 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 04:10:30,085 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 04:10:30,086 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 04:10:30,086 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 04:10:30,086 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 04:10:30,088 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 04:10:30,089 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 04:10:30,090 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 04:10:30,138 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 04:10:30,138 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 04:10:30,140 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 04:10:30,140 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 04:10:30,141 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 04:10:30,141 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 04:10:30,141 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 04:10:30,142 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 04:10:30,142 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 04:10:30,142 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 04:10:30,143 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 04:10:30,143 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 04:10:30,144 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 04:10:30,144 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 04:10:30,144 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 04:10:30,145 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 04:10:30,145 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 04:10:30,145 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 04:10:30,145 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 04:10:30,145 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 04:10:30,146 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 04:10:30,146 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:10:30,146 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 04:10:30,146 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 04:10:30,146 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 04:10:30,147 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 04:10:30,147 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 04:10:30,147 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 04:10:30,147 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 04:10:30,147 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 04:10:30,569 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 04:10:30,586 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 04:10:30,590 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 04:10:30,592 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 04:10:30,592 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 04:10:30,593 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product42.cil.c [2020-09-25 04:10:30,670 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/31c1e4600/49702ee178064e029e4b72578809e99f/FLAG832dd60e2 [2020-09-25 04:10:31,315 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 04:10:31,316 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product42.cil.c [2020-09-25 04:10:31,335 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/31c1e4600/49702ee178064e029e4b72578809e99f/FLAG832dd60e2 [2020-09-25 04:10:31,561 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/31c1e4600/49702ee178064e029e4b72578809e99f [2020-09-25 04:10:31,574 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 04:10:31,578 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 04:10:31,579 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 04:10:31,580 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 04:10:31,585 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 04:10:31,586 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:10:31" (1/1) ... [2020-09-25 04:10:31,591 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27030054 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:10:31, skipping insertion in model container [2020-09-25 04:10:31,591 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:10:31" (1/1) ... [2020-09-25 04:10:31,601 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 04:10:31,673 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 04:10:32,050 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:10:32,165 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 04:10:32,260 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:10:32,296 INFO L208 MainTranslator]: Completed translation [2020-09-25 04:10:32,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:10:32 WrapperNode [2020-09-25 04:10:32,297 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 04:10:32,298 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 04:10:32,298 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 04:10:32,298 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 04:10:32,311 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:10:32" (1/1) ... [2020-09-25 04:10:32,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:10:32" (1/1) ... [2020-09-25 04:10:32,332 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:10:32" (1/1) ... [2020-09-25 04:10:32,333 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:10:32" (1/1) ... [2020-09-25 04:10:32,371 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:10:32" (1/1) ... [2020-09-25 04:10:32,381 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:10:32" (1/1) ... [2020-09-25 04:10:32,386 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:10:32" (1/1) ... [2020-09-25 04:10:32,393 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 04:10:32,394 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 04:10:32,394 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 04:10:32,394 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 04:10:32,396 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:10:32" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:10:32,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 04:10:32,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 04:10:32,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 04:10:32,477 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 04:10:32,477 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 04:10:32,477 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 04:10:32,477 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 04:10:32,477 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 04:10:32,478 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 04:10:32,478 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 04:10:32,478 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 04:10:32,478 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 04:10:32,478 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 04:10:32,479 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 04:10:32,479 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 04:10:32,479 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 04:10:32,479 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 04:10:32,479 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 04:10:32,480 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 04:10:32,480 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 04:10:32,480 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 04:10:32,480 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 04:10:32,480 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 04:10:32,481 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 04:10:32,481 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 04:10:32,481 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 04:10:32,481 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 04:10:32,481 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 04:10:32,482 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 04:10:32,482 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 04:10:32,482 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-25 04:10:32,482 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 04:10:32,482 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 04:10:32,482 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 04:10:32,483 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 04:10:32,483 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 04:10:32,483 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 04:10:32,483 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 04:10:32,483 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 04:10:32,483 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 04:10:32,484 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 04:10:32,484 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 04:10:32,484 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 04:10:32,484 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 04:10:32,484 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 04:10:32,484 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 04:10:32,485 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 04:10:32,485 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 04:10:32,485 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 04:10:32,485 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 04:10:32,485 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 04:10:32,485 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 04:10:32,486 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 04:10:32,486 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 04:10:32,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 04:10:32,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 04:10:32,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 04:10:32,486 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 04:10:32,487 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 04:10:32,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 04:10:32,487 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 04:10:32,487 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 04:10:32,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 04:10:32,487 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 04:10:32,488 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 04:10:32,488 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 04:10:32,488 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 04:10:32,488 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 04:10:32,488 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 04:10:32,488 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 04:10:32,489 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 04:10:32,489 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 04:10:32,489 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 04:10:32,489 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 04:10:32,489 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 04:10:32,489 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 04:10:32,490 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 04:10:32,490 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 04:10:32,490 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 04:10:32,490 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 04:10:32,490 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 04:10:32,490 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 04:10:32,490 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 04:10:32,491 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 04:10:32,491 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 04:10:32,491 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 04:10:32,491 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 04:10:32,491 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-25 04:10:32,491 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 04:10:32,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 04:10:32,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 04:10:32,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 04:10:33,594 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 04:10:33,594 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 04:10:33,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:10:33 BoogieIcfgContainer [2020-09-25 04:10:33,602 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 04:10:33,603 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 04:10:33,603 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 04:10:33,606 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 04:10:33,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 04:10:31" (1/3) ... [2020-09-25 04:10:33,608 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33ec11b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:10:33, skipping insertion in model container [2020-09-25 04:10:33,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:10:32" (2/3) ... [2020-09-25 04:10:33,608 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33ec11b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:10:33, skipping insertion in model container [2020-09-25 04:10:33,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:10:33" (3/3) ... [2020-09-25 04:10:33,610 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product42.cil.c [2020-09-25 04:10:33,622 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 04:10:33,632 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 04:10:33,651 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 04:10:33,680 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 04:10:33,681 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 04:10:33,681 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 04:10:33,681 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 04:10:33,681 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 04:10:33,681 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 04:10:33,681 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 04:10:33,681 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 04:10:33,706 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states. [2020-09-25 04:10:33,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 04:10:33,724 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:10:33,725 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:10:33,725 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:10:33,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:10:33,733 INFO L82 PathProgramCache]: Analyzing trace with hash -66701350, now seen corresponding path program 1 times [2020-09-25 04:10:33,744 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:10:33,745 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [218307357] [2020-09-25 04:10:33,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:10:34,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:34,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:34,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:35,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:36,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:39,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:39,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 04:10:39,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 04:10:39,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5061 [2020-09-25 04:10:39,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:39,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:39,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:39,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 04:10:39,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:39,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-25 04:10:39,542 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:10:39,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:10:39,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:39,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:39,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:39,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:10:39,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:39,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-09-25 04:10:39,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:39,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:39,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:39,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:39,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:39,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:39,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:10:39,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:39,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:39,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:39,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:10:39,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:39,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:10:39,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:39,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:39,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:39,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:39,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:39,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:39,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:10:39,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:39,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:39,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:39,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:10:39,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:39,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:10:39,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:39,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:39,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:39,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:39,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:39,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:39,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:10:39,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:39,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:39,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:39,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:10:39,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:39,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:10:39,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:39,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:39,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:39,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:39,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:39,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:39,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:10:39,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:39,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:39,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:39,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:10:39,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:39,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:10:39,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:39,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:39,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:39,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:39,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:39,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:39,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 04:10:39,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:39,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:39,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:39,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:10:39,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:39,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:10:39,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:39,844 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:39,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:39,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:10:39,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:39,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:39,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 04:10:39,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:39,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:39,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:39,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:10:39,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:39,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:10:39,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:39,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:39,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:39,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:10:39,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:39,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:39,884 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 04:10:39,885 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [218307357] [2020-09-25 04:10:39,887 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:10:39,887 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:10:39,888 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420654926] [2020-09-25 04:10:39,897 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:10:39,898 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:10:39,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:10:39,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:10:39,918 INFO L87 Difference]: Start difference. First operand 304 states. Second operand 3 states. [2020-09-25 04:10:41,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:10:41,157 INFO L93 Difference]: Finished difference Result 474 states and 559 transitions. [2020-09-25 04:10:41,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:10:41,160 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-25 04:10:41,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:10:41,181 INFO L225 Difference]: With dead ends: 474 [2020-09-25 04:10:41,181 INFO L226 Difference]: Without dead ends: 295 [2020-09-25 04:10:41,187 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:10:41,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2020-09-25 04:10:41,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 253. [2020-09-25 04:10:41,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2020-09-25 04:10:41,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 272 transitions. [2020-09-25 04:10:41,310 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 272 transitions. Word has length 142 [2020-09-25 04:10:41,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:10:41,311 INFO L479 AbstractCegarLoop]: Abstraction has 253 states and 272 transitions. [2020-09-25 04:10:41,311 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:10:41,312 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 272 transitions. [2020-09-25 04:10:41,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-25 04:10:41,342 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:10:41,343 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] [2020-09-25 04:10:41,343 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 04:10:41,343 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:10:41,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:10:41,344 INFO L82 PathProgramCache]: Analyzing trace with hash -2010231336, now seen corresponding path program 1 times [2020-09-25 04:10:41,344 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:10:41,344 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [342460005] [2020-09-25 04:10:41,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:10:41,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:41,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:41,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:43,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:43,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:44,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:46,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:46,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 04:10:46,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:10:46,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-09-25 04:10:46,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:46,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:46,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:10:46,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 04:10:46,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 04:10:46,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:46,694 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:10:46,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:10:46,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:46,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:46,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:46,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:10:46,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:46,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-25 04:10:46,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:46,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:46,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:46,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:46,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:46,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:46,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:10:46,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:46,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:46,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:46,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:10:46,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:46,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:10:46,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:46,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:46,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:46,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:46,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:46,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:46,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:10:46,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:46,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:46,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:46,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:10:46,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:46,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:10:46,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:46,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:46,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:46,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:46,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:46,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:46,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:10:46,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:46,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:46,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:46,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:10:46,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:46,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:10:46,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:46,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:46,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:46,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:46,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:46,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:46,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:10:46,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:46,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:46,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:46,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:10:46,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:46,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:10:46,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:46,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:46,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:46,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:46,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:46,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:46,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 04:10:46,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:46,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:46,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:46,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:10:46,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:46,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:10:46,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:46,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:46,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:46,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:10:46,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:46,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:46,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 04:10:46,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:46,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:46,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:46,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:10:46,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:46,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:10:46,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:46,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:46,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:46,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:10:46,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:46,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:46,955 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 04:10:46,956 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [342460005] [2020-09-25 04:10:46,956 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:10:46,956 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 04:10:46,956 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811160848] [2020-09-25 04:10:46,959 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 04:10:46,959 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:10:46,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 04:10:46,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 04:10:46,960 INFO L87 Difference]: Start difference. First operand 253 states and 272 transitions. Second operand 4 states. [2020-09-25 04:10:47,619 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:10:48,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:10:48,545 INFO L93 Difference]: Finished difference Result 387 states and 430 transitions. [2020-09-25 04:10:48,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 04:10:48,546 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-25 04:10:48,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:10:48,551 INFO L225 Difference]: With dead ends: 387 [2020-09-25 04:10:48,551 INFO L226 Difference]: Without dead ends: 278 [2020-09-25 04:10:48,553 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 04:10:48,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-09-25 04:10:48,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 243. [2020-09-25 04:10:48,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2020-09-25 04:10:48,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 259 transitions. [2020-09-25 04:10:48,609 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 259 transitions. Word has length 143 [2020-09-25 04:10:48,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:10:48,610 INFO L479 AbstractCegarLoop]: Abstraction has 243 states and 259 transitions. [2020-09-25 04:10:48,610 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 04:10:48,611 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 259 transitions. [2020-09-25 04:10:48,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-25 04:10:48,618 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:10:48,619 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] [2020-09-25 04:10:48,621 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 04:10:48,622 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:10:48,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:10:48,622 INFO L82 PathProgramCache]: Analyzing trace with hash 734706202, now seen corresponding path program 1 times [2020-09-25 04:10:48,623 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:10:48,623 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [741278227] [2020-09-25 04:10:48,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:10:48,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:48,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:49,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:49,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:51,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:53,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:53,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 04:10:53,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 04:10:53,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-09-25 04:10:53,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:53,717 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:53,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:10:53,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 04:10:53,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 04:10:53,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:10:54,050 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:10:54,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:10:54,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:54,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:54,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:54,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:10:54,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:54,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-25 04:10:54,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:54,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:54,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:54,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:54,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:54,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:54,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:10:54,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:54,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:54,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:54,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:10:54,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:54,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:10:54,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:54,205 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:54,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:54,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:54,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:54,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:54,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:10:54,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:54,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:54,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:54,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:10:54,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:54,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:10:54,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:54,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:54,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:54,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:54,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:54,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:54,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:10:54,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:54,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:54,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:54,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:10:54,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:54,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:10:54,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:54,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:54,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:54,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:54,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:54,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:54,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:10:54,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:54,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:54,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:54,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:10:54,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:54,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:10:54,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:54,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:54,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:54,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:54,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:54,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:54,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 04:10:54,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:54,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:54,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:54,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:10:54,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:54,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:10:54,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:54,246 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:54,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:10:54,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:54,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 04:10:54,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:54,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 04:10:54,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:54,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:54,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:54,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:10:54,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:54,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:10:54,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:54,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:54,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:54,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:10:54,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:54,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:54,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 04:10:54,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:54,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:54,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:54,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:10:54,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:54,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:10:54,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:54,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:54,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:54,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:10:54,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:54,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:54,334 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 04:10:54,334 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [741278227] [2020-09-25 04:10:54,335 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:10:54,335 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 04:10:54,335 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817256501] [2020-09-25 04:10:54,336 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 04:10:54,336 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:10:54,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 04:10:54,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 04:10:54,337 INFO L87 Difference]: Start difference. First operand 243 states and 259 transitions. Second operand 5 states. [2020-09-25 04:10:54,817 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 04:10:55,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:10:55,716 INFO L93 Difference]: Finished difference Result 433 states and 492 transitions. [2020-09-25 04:10:55,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 04:10:55,717 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-09-25 04:10:55,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:10:55,721 INFO L225 Difference]: With dead ends: 433 [2020-09-25 04:10:55,721 INFO L226 Difference]: Without dead ends: 300 [2020-09-25 04:10:55,723 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 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 04:10:55,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2020-09-25 04:10:55,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 243. [2020-09-25 04:10:55,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2020-09-25 04:10:55,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 258 transitions. [2020-09-25 04:10:55,762 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 258 transitions. Word has length 156 [2020-09-25 04:10:55,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:10:55,763 INFO L479 AbstractCegarLoop]: Abstraction has 243 states and 258 transitions. [2020-09-25 04:10:55,763 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 04:10:55,763 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 258 transitions. [2020-09-25 04:10:55,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-09-25 04:10:55,765 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:10:55,765 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] [2020-09-25 04:10:55,766 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 04:10:55,766 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:10:55,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:10:55,766 INFO L82 PathProgramCache]: Analyzing trace with hash 819157147, now seen corresponding path program 1 times [2020-09-25 04:10:55,766 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:10:55,767 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [527784596] [2020-09-25 04:10:55,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:10:55,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:55,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:56,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:56,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:57,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:59,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:11:00,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:11:00,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-25 04:11:00,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:11:00,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-09-25 04:11:00,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:11:00,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:11:00,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:11:00,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 152 [2020-09-25 04:11:00,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:11:00,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:11:01,150 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:11:01,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:11:01,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:11:01,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:11:01,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:11:01,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:11:01,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:11:01,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-09-25 04:11:01,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:11:01,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:11:01,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:11:01,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:11:01,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:11:01,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:11:01,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:11:01,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:11:01,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:11:01,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:11:01,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:11:01,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:11:01,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:11:01,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:11:01,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:11:01,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:11:01,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:11:01,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:11:01,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:11:01,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:11:01,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:11:01,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:11:01,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:11:01,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:11:01,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:11:01,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:11:01,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:11:01,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:11:01,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:11:01,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:11:01,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:11:01,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:11:01,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:11:01,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:11:01,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:11:01,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:11:01,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:11:01,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:11:01,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:11:01,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:11:01,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:11:01,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:11:01,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:11:01,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:11:01,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:11:01,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:11:01,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:11:01,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:11:01,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:11:01,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:11:01,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:11:01,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:11:01,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:11:01,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:11:01,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:11:01,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:11:01,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:11:01,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:11:01,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 04:11:01,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:11:01,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:11:01,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:11:01,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:11:01,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:11:01,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:11:01,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:11:01,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:11:01,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:11:01,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:11:01,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:11:01,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:11:01,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 04:11:01,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:11:01,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:11:01,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:11:01,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:11:01,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:11:01,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 04:11:01,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:11:01,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:11:01,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:11:01,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 04:11:01,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 04:11:01,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:11:01,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:11:01,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:11:01,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:11:01,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:11:01,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:11:01,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:11:01,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:11:01,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:11:01,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:11:01,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:11:01,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:11:01,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:11:01,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:11:01,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-25 04:11:01,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:11:01,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:11:01,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:11:01,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:11:01,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:11:01,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:11:01,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:11:01,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:11:01,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:11:01,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:11:01,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:11:01,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:11:01,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-09-25 04:11:01,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:11:01,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:11:01,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:11:01,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:11:01,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:11:01,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:11:01,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:11:01,397 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:11:01,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:11:01,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:11:01,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:11:01,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:11:01,434 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 04:11:01,435 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [527784596] [2020-09-25 04:11:01,436 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:11:01,436 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 04:11:01,437 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069073260] [2020-09-25 04:11:01,438 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 04:11:01,438 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:11:01,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 04:11:01,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 04:11:01,439 INFO L87 Difference]: Start difference. First operand 243 states and 258 transitions. Second operand 7 states. [2020-09-25 04:11:01,964 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 04:11:03,743 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:11:04,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:11:04,521 INFO L93 Difference]: Finished difference Result 604 states and 709 transitions. [2020-09-25 04:11:04,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 04:11:04,522 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 164 [2020-09-25 04:11:04,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:11:04,527 INFO L225 Difference]: With dead ends: 604 [2020-09-25 04:11:04,527 INFO L226 Difference]: Without dead ends: 471 [2020-09-25 04:11:04,530 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-09-25 04:11:04,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2020-09-25 04:11:04,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 344. [2020-09-25 04:11:04,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 344 states. [2020-09-25 04:11:04,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 369 transitions. [2020-09-25 04:11:04,579 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 369 transitions. Word has length 164 [2020-09-25 04:11:04,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:11:04,579 INFO L479 AbstractCegarLoop]: Abstraction has 344 states and 369 transitions. [2020-09-25 04:11:04,579 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 04:11:04,579 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 369 transitions. [2020-09-25 04:11:04,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2020-09-25 04:11:04,582 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:11:04,582 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] [2020-09-25 04:11:04,582 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 04:11:04,582 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:11:04,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:11:04,583 INFO L82 PathProgramCache]: Analyzing trace with hash 1786267109, now seen corresponding path program 1 times [2020-09-25 04:11:04,583 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:11:04,583 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1089213628] [2020-09-25 04:11:04,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:11:04,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:11:04,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:11:05,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:11:05,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:11:09,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:11:09,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 227 [2020-09-25 04:11:09,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 04:11:09,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-09-25 04:11:09,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:11:09,649 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:11:09,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:11:09,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-09-25 04:11:09,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-09-25 04:11:09,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:11:10,010 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:11:10,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:11:10,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:11:10,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:11:10,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:11:10,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:11:10,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:11:10,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-09-25 04:11:10,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:11:10,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:11:10,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:11:10,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:11:10,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:11:10,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:11:10,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:11:10,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:11:10,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:11:10,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:11:10,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:11:10,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:11:10,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:11:10,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:11:10,169 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:11:10,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:11:10,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:11:10,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:11:10,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:11:10,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:11:10,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:11:10,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:11:10,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:11:10,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:11:10,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:11:10,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:11:10,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:11:10,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:11:10,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:11:10,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:11:10,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:11:10,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:11:10,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:11:10,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:11:10,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:11:10,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:11:10,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:11:10,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:11:10,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:11:10,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:11:10,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:11:10,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:11:10,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:11:10,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:11:10,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:11:10,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:11:10,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:11:10,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:11:10,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:11:10,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:11:10,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:11:10,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:11:10,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:11:10,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:11:10,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:11:10,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:11:10,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:11:10,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:11:10,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 04:11:10,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:11:10,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:11:10,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:11:10,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:11:10,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:11:10,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:11:10,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:11:10,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:11:10,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:11:10,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:11:10,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:11:10,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:11:10,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 04:11:10,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:11:10,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:11:10,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:11:10,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 04:11:10,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:11:10,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 04:11:10,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:11:10,264 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:11:10,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:11:10,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:11:10,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 04:11:10,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:11:10,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:11:10,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:11:10,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:11:10,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:11:10,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 04:11:10,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:11:10,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 04:11:10,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:11:10,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:11:10,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:11:10,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:11:10,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 04:11:10,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:11:10,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:11:10,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:11:10,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:11:10,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:11:10,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:11:10,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:11:10,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:11:10,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:11:10,316 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:11:10,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:11:10,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:11:10,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:11:10,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:11:10,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 04:11:10,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:11:10,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:11:10,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:11:10,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:11:10,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:11:10,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:11:10,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:11:10,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:11:10,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:11:10,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:11:10,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:11:10,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:11:10,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2020-09-25 04:11:10,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:11:10,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:11:10,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:11:10,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:11:10,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:11:10,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:11:10,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:11:10,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:11:10,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:11:10,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:11:10,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:11:10,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:11:10,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-09-25 04:11:10,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:11:10,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:11:10,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:11:10,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:11:10,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:11:10,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 04:11:10,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:11:10,351 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:11:10,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:11:10,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:11:10,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:11:10,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:11:10,451 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 04:11:10,452 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1089213628] [2020-09-25 04:11:10,452 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:11:10,452 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 04:11:10,453 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092373913] [2020-09-25 04:11:10,454 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 04:11:10,454 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:11:10,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 04:11:10,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 04:11:10,456 INFO L87 Difference]: Start difference. First operand 344 states and 369 transitions. Second operand 10 states. [2020-09-25 04:11:11,001 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 04:11:12,535 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 04:11:12,932 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:11:13,265 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 04:11:13,596 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:11:13,900 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 04:11:14,337 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 04:11:14,638 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 04:11:14,975 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:11:15,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:11:15,829 INFO L93 Difference]: Finished difference Result 474 states and 553 transitions. [2020-09-25 04:11:15,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 04:11:15,836 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 188 [2020-09-25 04:11:15,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:11:15,840 INFO L225 Difference]: With dead ends: 474 [2020-09-25 04:11:15,840 INFO L226 Difference]: Without dead ends: 471 [2020-09-25 04:11:15,841 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-09-25 04:11:15,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2020-09-25 04:11:15,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 344. [2020-09-25 04:11:15,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 344 states. [2020-09-25 04:11:15,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 368 transitions. [2020-09-25 04:11:15,904 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 368 transitions. Word has length 188 [2020-09-25 04:11:15,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:11:15,905 INFO L479 AbstractCegarLoop]: Abstraction has 344 states and 368 transitions. [2020-09-25 04:11:15,905 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 04:11:15,905 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 368 transitions. [2020-09-25 04:11:15,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-09-25 04:11:15,908 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:11:15,908 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:11:15,909 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 04:11:15,909 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:11:15,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:11:15,909 INFO L82 PathProgramCache]: Analyzing trace with hash 342460363, now seen corresponding path program 1 times [2020-09-25 04:11:15,910 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:11:15,910 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [470222778] [2020-09-25 04:11:15,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:11:15,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:11:16,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:11:16,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking...