/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=0.4 --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_spec1_product55.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 05:09:39,026 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 05:09:39,029 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 05:09:39,054 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 05:09:39,055 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 05:09:39,056 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 05:09:39,058 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 05:09:39,060 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 05:09:39,061 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 05:09:39,062 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 05:09:39,063 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 05:09:39,065 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 05:09:39,065 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 05:09:39,066 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 05:09:39,067 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 05:09:39,068 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 05:09:39,069 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 05:09:39,070 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 05:09:39,072 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 05:09:39,074 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 05:09:39,078 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 05:09:39,079 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 05:09:39,086 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 05:09:39,087 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 05:09:39,089 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 05:09:39,090 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 05:09:39,090 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 05:09:39,091 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 05:09:39,091 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 05:09:39,092 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 05:09:39,092 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 05:09:39,093 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 05:09:39,094 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 05:09:39,095 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 05:09:39,096 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 05:09:39,096 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 05:09:39,097 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 05:09:39,097 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 05:09:39,097 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 05:09:39,098 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 05:09:39,099 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 05:09:39,100 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 05:09:39,126 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 05:09:39,126 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 05:09:39,128 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 05:09:39,128 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 05:09:39,128 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 05:09:39,129 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 05:09:39,129 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 05:09:39,129 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 05:09:39,129 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 05:09:39,129 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 05:09:39,130 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 05:09:39,130 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 05:09:39,130 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 05:09:39,130 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 05:09:39,130 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 05:09:39,131 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 05:09:39,131 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 05:09:39,131 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 05:09:39,131 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 05:09:39,131 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 05:09:39,132 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 05:09:39,132 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 05:09:39,132 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 05:09:39,132 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 05:09:39,132 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 05:09:39,133 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 05:09:39,133 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 05:09:39,133 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 05:09:39,133 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 05:09:39,133 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=0.4;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=0.4;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=0.4;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=0.4;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=0.4;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=0.4;log-additional-information=true; [2020-09-25 05:09:39,579 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 05:09:39,597 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 05:09:39,601 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 05:09:39,603 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 05:09:39,604 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 05:09:39,605 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product55.cil.c [2020-09-25 05:09:39,686 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/801585835/80422e9416ac4ee7a952acc0bbfeab33/FLAG17122a721 [2020-09-25 05:09:40,287 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 05:09:40,288 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product55.cil.c [2020-09-25 05:09:40,304 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/801585835/80422e9416ac4ee7a952acc0bbfeab33/FLAG17122a721 [2020-09-25 05:09:40,569 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/801585835/80422e9416ac4ee7a952acc0bbfeab33 [2020-09-25 05:09:40,580 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 05:09:40,586 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 05:09:40,587 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 05:09:40,587 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 05:09:40,591 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 05:09:40,593 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:09:40" (1/1) ... [2020-09-25 05:09:40,596 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a4700e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:09:40, skipping insertion in model container [2020-09-25 05:09:40,597 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:09:40" (1/1) ... [2020-09-25 05:09:40,606 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 05:09:40,661 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 05:09:41,190 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:09:41,205 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 05:09:41,289 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:09:41,341 INFO L208 MainTranslator]: Completed translation [2020-09-25 05:09:41,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:09:41 WrapperNode [2020-09-25 05:09:41,343 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 05:09:41,344 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 05:09:41,344 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 05:09:41,344 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 05:09:41,361 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:09:41" (1/1) ... [2020-09-25 05:09:41,362 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:09:41" (1/1) ... [2020-09-25 05:09:41,382 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:09:41" (1/1) ... [2020-09-25 05:09:41,383 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:09:41" (1/1) ... [2020-09-25 05:09:41,417 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:09:41" (1/1) ... [2020-09-25 05:09:41,435 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:09:41" (1/1) ... [2020-09-25 05:09:41,441 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:09:41" (1/1) ... [2020-09-25 05:09:41,449 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 05:09:41,449 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 05:09:41,450 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 05:09:41,450 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 05:09:41,451 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:09:41" (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 05:09:41,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 05:09:41,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 05:09:41,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 05:09:41,543 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 05:09:41,543 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 05:09:41,544 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 05:09:41,545 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 05:09:41,546 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 05:09:41,546 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 05:09:41,546 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 05:09:41,546 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 05:09:41,546 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 05:09:41,547 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 05:09:41,547 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 05:09:41,547 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 05:09:41,548 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 05:09:41,548 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 05:09:41,548 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 05:09:41,549 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 05:09:41,549 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 05:09:41,549 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 05:09:41,549 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 05:09:41,550 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 05:09:41,550 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 05:09:41,550 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 05:09:41,551 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 05:09:41,551 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 05:09:41,551 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 05:09:41,551 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 05:09:41,552 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 05:09:41,552 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 05:09:41,552 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 05:09:41,552 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 05:09:41,552 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 05:09:41,553 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 05:09:41,553 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 05:09:41,553 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 05:09:41,553 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 05:09:41,553 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 05:09:41,553 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 05:09:41,554 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 05:09:41,554 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 05:09:41,554 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 05:09:41,554 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 05:09:41,554 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 05:09:41,555 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 05:09:41,555 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 05:09:41,555 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 05:09:41,555 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 05:09:41,556 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 05:09:41,556 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 05:09:41,556 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 05:09:41,556 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 05:09:41,556 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 05:09:41,557 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 05:09:41,557 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 05:09:41,557 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 05:09:41,557 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 05:09:41,557 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 05:09:41,557 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 05:09:41,558 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 05:09:41,558 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 05:09:41,558 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 05:09:41,558 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 05:09:41,558 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 05:09:41,558 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 05:09:41,559 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 05:09:41,559 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 05:09:41,559 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 05:09:41,560 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 05:09:41,560 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 05:09:41,561 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 05:09:41,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 05:09:41,561 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 05:09:41,562 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 05:09:41,562 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 05:09:41,562 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 05:09:41,562 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 05:09:41,562 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 05:09:41,562 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 05:09:41,562 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 05:09:41,563 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 05:09:41,563 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 05:09:41,563 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 05:09:41,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 05:09:41,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 05:09:41,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 05:09:41,564 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 05:09:41,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 05:09:41,564 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 05:09:41,565 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 05:09:41,565 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 05:09:41,565 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 05:09:41,565 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 05:09:41,565 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 05:09:41,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 05:09:41,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 05:09:41,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 05:09:42,823 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 05:09:42,823 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 05:09:42,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:09:42 BoogieIcfgContainer [2020-09-25 05:09:42,831 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 05:09:42,832 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 05:09:42,832 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 05:09:42,836 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 05:09:42,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 05:09:40" (1/3) ... [2020-09-25 05:09:42,837 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b7a9731 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:09:42, skipping insertion in model container [2020-09-25 05:09:42,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:09:41" (2/3) ... [2020-09-25 05:09:42,840 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b7a9731 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:09:42, skipping insertion in model container [2020-09-25 05:09:42,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:09:42" (3/3) ... [2020-09-25 05:09:42,842 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product55.cil.c [2020-09-25 05:09:42,856 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 05:09:42,869 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 05:09:42,889 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 05:09:42,919 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 05:09:42,919 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 05:09:42,919 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 05:09:42,920 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 05:09:42,920 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 05:09:42,920 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 05:09:42,920 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 05:09:42,920 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 05:09:42,950 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states. [2020-09-25 05:09:42,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 05:09:42,970 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:09:42,971 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 05:09:42,972 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:09:42,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:09:42,981 INFO L82 PathProgramCache]: Analyzing trace with hash 2046718669, now seen corresponding path program 1 times [2020-09-25 05:09:42,990 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:09:42,991 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [550294881] [2020-09-25 05:09:42,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:09:43,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:43,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:43,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:45,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:46,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:47,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:48,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:48,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 05:09:48,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 05:09:48,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 05:09:48,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:48,339 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:48,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:48,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 05:09:48,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:48,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 05:09:48,695 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 05:09:48,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:09:48,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:48,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:48,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:48,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:09:48,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:48,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-09-25 05:09:48,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:48,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:48,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:48,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:48,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:48,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:48,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:09:48,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:48,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:48,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:48,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:09:48,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:48,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:09:48,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:48,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:48,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:48,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:48,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:48,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:48,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 05:09:48,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:48,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:48,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:48,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:09:48,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:48,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:09:48,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:48,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:48,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:48,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:48,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:48,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:48,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 05:09:48,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:48,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:48,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:48,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:09:48,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:48,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:09:48,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:48,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:48,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:48,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:48,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:48,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:48,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 05:09:48,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:48,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:48,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:48,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:09:48,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:48,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:09:48,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:48,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:48,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:48,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:48,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:48,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:48,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 05:09:48,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:48,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:48,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:48,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:09:48,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:48,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:09:48,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:48,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:48,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:48,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:09:48,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:48,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:48,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 05:09:48,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:48,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:48,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:48,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:09:48,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:48,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:09:48,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:48,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:48,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:48,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:09:48,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:48,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:48,973 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 05:09:48,974 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [550294881] [2020-09-25 05:09:48,976 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:09:48,977 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 05:09:48,978 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838315782] [2020-09-25 05:09:48,984 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 05:09:48,985 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:09:49,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 05:09:49,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:09:49,006 INFO L87 Difference]: Start difference. First operand 338 states. Second operand 3 states. [2020-09-25 05:09:50,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:09:50,453 INFO L93 Difference]: Finished difference Result 545 states and 652 transitions. [2020-09-25 05:09:50,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 05:09:50,456 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-25 05:09:50,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:09:50,476 INFO L225 Difference]: With dead ends: 545 [2020-09-25 05:09:50,476 INFO L226 Difference]: Without dead ends: 332 [2020-09-25 05:09:50,483 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 05:09:50,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2020-09-25 05:09:50,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 287. [2020-09-25 05:09:50,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 287 states. [2020-09-25 05:09:50,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 316 transitions. [2020-09-25 05:09:50,597 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 316 transitions. Word has length 142 [2020-09-25 05:09:50,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:09:50,597 INFO L479 AbstractCegarLoop]: Abstraction has 287 states and 316 transitions. [2020-09-25 05:09:50,598 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 05:09:50,598 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 316 transitions. [2020-09-25 05:09:50,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-25 05:09:50,603 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:09:50,603 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 05:09:50,603 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 05:09:50,604 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:09:50,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:09:50,604 INFO L82 PathProgramCache]: Analyzing trace with hash 69871948, now seen corresponding path program 1 times [2020-09-25 05:09:50,604 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:09:50,605 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1464615220] [2020-09-25 05:09:50,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:09:50,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:50,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:50,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:52,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:52,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:54,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:55,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:55,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 05:09:55,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 05:09:55,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 05:09:55,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:55,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:55,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:09:55,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 05:09:55,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 05:09:55,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:55,944 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 05:09:55,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:09:55,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:55,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:56,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:56,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:09:56,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:56,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-25 05:09:56,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:56,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:56,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:56,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:56,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:56,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:56,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:09:56,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:56,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:56,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:56,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:09:56,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:56,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:09:56,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:56,082 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:56,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:56,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:56,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:56,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:56,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 05:09:56,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:56,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:56,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:56,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:09:56,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:56,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:09:56,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:56,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:56,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:56,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:56,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:56,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:56,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 05:09:56,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:56,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:56,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:56,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:09:56,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:56,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:09:56,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:56,096 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:56,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:56,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:56,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:56,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:56,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 05:09:56,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:56,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:56,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:56,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:09:56,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:56,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:09:56,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:56,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:56,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:56,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:56,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:56,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:56,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 05:09:56,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:56,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:56,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:56,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:09:56,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:56,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:09:56,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:56,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:56,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:56,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:09:56,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:56,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:56,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 05:09:56,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:56,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:56,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:56,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:09:56,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:56,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:09:56,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:56,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:56,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:56,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:09:56,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:56,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:56,137 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 05:09:56,137 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1464615220] [2020-09-25 05:09:56,138 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:09:56,138 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 05:09:56,138 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282851863] [2020-09-25 05:09:56,140 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 05:09:56,141 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:09:56,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 05:09:56,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 05:09:56,141 INFO L87 Difference]: Start difference. First operand 287 states and 316 transitions. Second operand 4 states. [2020-09-25 05:09:56,759 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:09:57,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:09:57,972 INFO L93 Difference]: Finished difference Result 456 states and 519 transitions. [2020-09-25 05:09:57,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 05:09:57,973 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-25 05:09:57,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:09:57,978 INFO L225 Difference]: With dead ends: 456 [2020-09-25 05:09:57,978 INFO L226 Difference]: Without dead ends: 315 [2020-09-25 05:09:57,980 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 05:09:57,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2020-09-25 05:09:58,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 277. [2020-09-25 05:09:58,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2020-09-25 05:09:58,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 303 transitions. [2020-09-25 05:09:58,024 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 303 transitions. Word has length 143 [2020-09-25 05:09:58,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:09:58,025 INFO L479 AbstractCegarLoop]: Abstraction has 277 states and 303 transitions. [2020-09-25 05:09:58,025 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 05:09:58,025 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 303 transitions. [2020-09-25 05:09:58,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-09-25 05:09:58,028 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:09:58,028 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] [2020-09-25 05:09:58,028 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 05:09:58,029 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:09:58,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:09:58,029 INFO L82 PathProgramCache]: Analyzing trace with hash -1405476844, now seen corresponding path program 1 times [2020-09-25 05:09:58,029 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:09:58,030 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [479483784] [2020-09-25 05:09:58,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:09:58,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:58,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:58,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:59,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:59,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:03,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:03,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 05:10:03,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 05:10:03,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 05:10:03,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:03,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:03,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 05:10:03,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 05:10:03,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-25 05:10:03,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:10:03,427 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 05:10:03,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:10:03,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:03,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:03,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:03,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:10:03,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:03,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 228 [2020-09-25 05:10:03,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:03,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:03,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:10:03,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:10:03,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 05:10:03,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:10:03,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:10:03,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:03,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:03,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:03,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:10:03,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:03,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:10:03,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:03,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:03,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:10:03,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:10:03,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:10:03,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:10:03,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 05:10:03,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:03,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:03,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:03,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:10:03,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:03,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:10:03,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:03,741 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:03,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:10:03,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:10:03,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:10:03,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:10:03,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 05:10:03,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:03,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:03,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:03,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:10:03,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:03,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 05:10:03,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:03,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:03,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:10:03,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:10:03,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:10:03,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:10:03,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 05:10:03,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:03,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:03,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:03,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:10:03,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:03,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:10:03,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:03,761 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:03,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:10:03,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:10:03,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:10:03,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:10:03,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 05:10:03,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:03,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:03,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:03,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:10:03,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:03,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:10:03,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:03,769 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:03,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:10:03,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:10:03,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:10:03,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:10:03,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 05:10:03,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:03,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:03,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:03,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:10:03,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:03,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:10:03,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:03,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:03,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:10:03,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:10:03,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:10:03,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 05:10:03,808 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 05:10:03,808 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [479483784] [2020-09-25 05:10:03,809 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:10:03,809 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 05:10:03,809 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87668042] [2020-09-25 05:10:03,810 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 05:10:03,810 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:10:03,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 05:10:03,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 05:10:03,811 INFO L87 Difference]: Start difference. First operand 277 states and 303 transitions. Second operand 4 states. [2020-09-25 05:10:04,333 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 05:10:06,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:10:06,377 INFO L93 Difference]: Finished difference Result 663 states and 766 transitions. [2020-09-25 05:10:06,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 05:10:06,378 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 152 [2020-09-25 05:10:06,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:10:06,385 INFO L225 Difference]: With dead ends: 663 [2020-09-25 05:10:06,385 INFO L226 Difference]: Without dead ends: 496 [2020-09-25 05:10:06,386 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 SyntacticMatches, 1 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 05:10:06,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2020-09-25 05:10:06,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 438. [2020-09-25 05:10:06,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 438 states. [2020-09-25 05:10:06,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 491 transitions. [2020-09-25 05:10:06,473 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 491 transitions. Word has length 152 [2020-09-25 05:10:06,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:10:06,474 INFO L479 AbstractCegarLoop]: Abstraction has 438 states and 491 transitions. [2020-09-25 05:10:06,474 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 05:10:06,474 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 491 transitions. [2020-09-25 05:10:06,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 05:10:06,477 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:10:06,478 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:10:06,478 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 05:10:06,478 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:10:06,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:10:06,479 INFO L82 PathProgramCache]: Analyzing trace with hash 1864711332, now seen corresponding path program 1 times [2020-09-25 05:10:06,479 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:10:06,479 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [690780443] [2020-09-25 05:10:06,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:10:06,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:06,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:07,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:07,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:10,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:11,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:11,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-25 05:10:11,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 05:10:11,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-25 05:10:11,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:11,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:11,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 05:10:11,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 150 [2020-09-25 05:10:11,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 05:10:11,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:10:11,975 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 05:10:11,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:10:11,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:12,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:12,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:12,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:10:12,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:12,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-09-25 05:10:12,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:12,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:12,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:10:12,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:10:12,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:10:12,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:10:12,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:10:12,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:12,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:12,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:12,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:10:12,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:12,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:10:12,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:12,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:12,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:10:12,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:10:12,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:10:12,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:10:12,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 05:10:12,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:12,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:12,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:12,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:10:12,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:12,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:10:12,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:12,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:12,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:10:12,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:10:12,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:10:12,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:10:12,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 05:10:12,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:12,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:12,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:12,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:10:12,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:12,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:10:12,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:12,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:12,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:10:12,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:10:12,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:10:12,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:10:12,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 05:10:12,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:12,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:12,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:12,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:10:12,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:12,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:10:12,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:12,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:12,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:10:12,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:10:12,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:10:12,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:10:12,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 05:10:12,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:12,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:12,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:12,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 05:10:12,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:12,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 05:10:12,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:12,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:12,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:10:12,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:10:12,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 05:10:12,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:10:12,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 05:10:12,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:12,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:12,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:12,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:10:12,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:12,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:10:12,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:12,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:12,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:10:12,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:10:12,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:10:12,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:10:12,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 05:10:12,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:12,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:12,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:12,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:10:12,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:12,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 05:10:12,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:12,279 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:12,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:10:12,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:10:12,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:10:12,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:10:12,391 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 05:10:12,393 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [690780443] [2020-09-25 05:10:12,393 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:10:12,393 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 05:10:12,394 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327454620] [2020-09-25 05:10:12,395 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 05:10:12,396 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:10:12,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 05:10:12,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 05:10:12,397 INFO L87 Difference]: Start difference. First operand 438 states and 491 transitions. Second operand 9 states. [2020-09-25 05:10:13,004 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:10:14,184 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 05:10:14,507 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:10:14,840 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 05:10:15,196 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 05:10:15,506 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 05:10:16,165 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 05:10:16,489 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 05:10:16,816 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 05:10:18,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:10:18,058 INFO L93 Difference]: Finished difference Result 1031 states and 1243 transitions. [2020-09-25 05:10:18,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 05:10:18,059 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 161 [2020-09-25 05:10:18,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:10:18,066 INFO L225 Difference]: With dead ends: 1031 [2020-09-25 05:10:18,066 INFO L226 Difference]: Without dead ends: 703 [2020-09-25 05:10:18,068 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 05:10:18,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 703 states. [2020-09-25 05:10:18,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 703 to 628. [2020-09-25 05:10:18,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 628 states. [2020-09-25 05:10:18,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 720 transitions. [2020-09-25 05:10:18,159 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 720 transitions. Word has length 161 [2020-09-25 05:10:18,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:10:18,159 INFO L479 AbstractCegarLoop]: Abstraction has 628 states and 720 transitions. [2020-09-25 05:10:18,160 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 05:10:18,160 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 720 transitions. [2020-09-25 05:10:18,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-09-25 05:10:18,162 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:10:18,163 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] [2020-09-25 05:10:18,163 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 05:10:18,163 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:10:18,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:10:18,164 INFO L82 PathProgramCache]: Analyzing trace with hash 1051506646, now seen corresponding path program 1 times [2020-09-25 05:10:18,164 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:10:18,164 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1718340196] [2020-09-25 05:10:18,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:10:18,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:18,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:18,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:22,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:22,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 236 [2020-09-25 05:10:22,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:10:22,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4391 [2020-09-25 05:10:22,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:22,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:22,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:10:22,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 174 [2020-09-25 05:10:22,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 05:10:22,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:10:22,886 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 05:10:22,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:10:22,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:22,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:23,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:23,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:10:23,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:23,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-25 05:10:23,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:23,002 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:23,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:10:23,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:10:23,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:10:23,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:10:23,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:10:23,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:23,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:23,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:23,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:10:23,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:23,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:10:23,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:23,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:23,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:10:23,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:10:23,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:10:23,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:10:23,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 05:10:23,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:23,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:23,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:23,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:10:23,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:23,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:10:23,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:23,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:23,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:10:23,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:10:23,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:10:23,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:10:23,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 05:10:23,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:23,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:23,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:23,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:10:23,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:23,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:10:23,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:23,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:23,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:10:23,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:10:23,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:10:23,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:10:23,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 05:10:23,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:23,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:23,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:23,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:10:23,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:23,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:10:23,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:23,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:23,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:10:23,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:10:23,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:10:23,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:10:23,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 05:10:23,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:23,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:23,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:23,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-25 05:10:23,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:23,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-09-25 05:10:23,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:23,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:23,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:10:23,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-25 05:10:23,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 05:10:23,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:10:23,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:10:23,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:23,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:23,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:23,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 05:10:23,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:23,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-25 05:10:23,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:23,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:23,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:10:23,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 05:10:23,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 05:10:23,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:10:23,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:10:23,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:23,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:23,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:23,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 05:10:23,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:23,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-25 05:10:23,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:23,273 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:23,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:10:23,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 05:10:23,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 05:10:23,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:10:23,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:10:23,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:23,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:23,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:23,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 05:10:23,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:23,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 05:10:23,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:23,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:23,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:10:23,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 05:10:23,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 05:10:23,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:10:23,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 05:10:23,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:23,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:23,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:23,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 05:10:23,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:23,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 05:10:23,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:23,345 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:23,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:10:23,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:10:23,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:10:23,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:10:23,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 05:10:23,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:23,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:23,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:23,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:10:23,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:23,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:10:23,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:23,374 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:23,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:10:23,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 05:10:23,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:10:23,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:10:23,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-09-25 05:10:23,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:23,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:23,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:23,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:10:23,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:23,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:10:23,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:23,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:23,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:10:23,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:10:23,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:10:23,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:10:23,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-09-25 05:10:23,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:23,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:23,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:23,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:10:23,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:23,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:10:23,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:23,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:23,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:10:23,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:10:23,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:10:23,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:10:23,420 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 05:10:23,421 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1718340196] [2020-09-25 05:10:23,421 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:10:23,421 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 05:10:23,421 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964392594] [2020-09-25 05:10:23,423 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 05:10:23,424 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:10:23,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 05:10:23,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 05:10:23,424 INFO L87 Difference]: Start difference. First operand 628 states and 720 transitions. Second operand 8 states. [2020-09-25 05:10:24,617 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:10:24,911 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 05:10:25,229 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:10:25,543 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 05:10:25,839 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:10:26,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:10:26,972 INFO L93 Difference]: Finished difference Result 1256 states and 1522 transitions. [2020-09-25 05:10:26,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 05:10:26,973 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 195 [2020-09-25 05:10:26,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:10:26,979 INFO L225 Difference]: With dead ends: 1256 [2020-09-25 05:10:26,979 INFO L226 Difference]: Without dead ends: 738 [2020-09-25 05:10:26,982 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2020-09-25 05:10:26,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 738 states. [2020-09-25 05:10:27,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 738 to 643. [2020-09-25 05:10:27,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 643 states. [2020-09-25 05:10:27,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 736 transitions. [2020-09-25 05:10:27,181 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 736 transitions. Word has length 195 [2020-09-25 05:10:27,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:10:27,182 INFO L479 AbstractCegarLoop]: Abstraction has 643 states and 736 transitions. [2020-09-25 05:10:27,182 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 05:10:27,182 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 736 transitions. [2020-09-25 05:10:27,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-09-25 05:10:27,185 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:10:27,186 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] [2020-09-25 05:10:27,186 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 05:10:27,186 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:10:27,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:10:27,188 INFO L82 PathProgramCache]: Analyzing trace with hash 637875254, now seen corresponding path program 1 times [2020-09-25 05:10:27,188 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:10:27,188 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [395368863] [2020-09-25 05:10:27,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:10:27,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:27,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:27,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking...