/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product41.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 07:26:19,880 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:26:19,885 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:26:19,930 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:26:19,930 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:26:19,937 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:26:19,939 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:26:19,946 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:26:19,949 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:26:19,950 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:26:19,951 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:26:19,952 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:26:19,953 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:26:19,954 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:26:19,955 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:26:19,956 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:26:19,957 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:26:19,958 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:26:19,960 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:26:19,962 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:26:19,964 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:26:19,965 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:26:19,966 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:26:19,967 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:26:19,970 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:26:19,970 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:26:19,970 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:26:19,972 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:26:19,972 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:26:19,973 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:26:19,973 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:26:19,974 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:26:19,975 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:26:19,976 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:26:19,977 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:26:19,977 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:26:19,978 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:26:19,979 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:26:19,979 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:26:19,980 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:26:19,981 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:26:19,982 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 07:26:20,008 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:26:20,008 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:26:20,010 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:26:20,010 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:26:20,010 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:26:20,010 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:26:20,010 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:26:20,011 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:26:20,011 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:26:20,011 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:26:20,011 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:26:20,011 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:26:20,012 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:26:20,012 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:26:20,012 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:26:20,012 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:26:20,013 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:26:20,013 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:26:20,013 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:26:20,013 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:26:20,013 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:26:20,014 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:26:20,014 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:26:20,014 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:26:20,014 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:26:20,014 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:26:20,015 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:26:20,015 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:26:20,015 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:26:20,015 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; [2020-09-25 07:26:20,536 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:26:20,561 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:26:20,568 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:26:20,571 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:26:20,571 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:26:20,572 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product41.cil.c [2020-09-25 07:26:20,649 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/65265f44f/999b353ed0324ed79d7f691aa02b9a97/FLAGdd1ae7fc5 [2020-09-25 07:26:21,303 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:26:21,304 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product41.cil.c [2020-09-25 07:26:21,327 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/65265f44f/999b353ed0324ed79d7f691aa02b9a97/FLAGdd1ae7fc5 [2020-09-25 07:26:21,517 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/65265f44f/999b353ed0324ed79d7f691aa02b9a97 [2020-09-25 07:26:21,531 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:26:21,539 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:26:21,541 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:26:21,541 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:26:21,545 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:26:21,547 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:26:21" (1/1) ... [2020-09-25 07:26:21,552 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c1631b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:26:21, skipping insertion in model container [2020-09-25 07:26:21,552 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:26:21" (1/1) ... [2020-09-25 07:26:21,562 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:26:21,640 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:26:22,155 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:26:22,171 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:26:22,258 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:26:22,301 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:26:22,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:26:22 WrapperNode [2020-09-25 07:26:22,302 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:26:22,303 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:26:22,303 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:26:22,303 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:26:22,319 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:26:22" (1/1) ... [2020-09-25 07:26:22,320 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:26:22" (1/1) ... [2020-09-25 07:26:22,341 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:26:22" (1/1) ... [2020-09-25 07:26:22,341 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:26:22" (1/1) ... [2020-09-25 07:26:22,374 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:26:22" (1/1) ... [2020-09-25 07:26:22,386 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:26:22" (1/1) ... [2020-09-25 07:26:22,391 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:26:22" (1/1) ... [2020-09-25 07:26:22,400 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:26:22,400 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:26:22,400 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:26:22,401 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:26:22,402 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:26:22" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:26:22,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:26:22,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:26:22,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 07:26:22,480 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 07:26:22,480 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 07:26:22,480 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 07:26:22,480 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 07:26:22,480 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 07:26:22,481 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 07:26:22,481 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 07:26:22,481 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 07:26:22,481 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 07:26:22,481 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 07:26:22,482 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 07:26:22,482 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 07:26:22,482 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 07:26:22,482 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 07:26:22,482 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 07:26:22,483 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 07:26:22,483 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 07:26:22,483 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-25 07:26:22,483 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 07:26:22,483 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 07:26:22,484 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 07:26:22,484 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 07:26:22,484 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 07:26:22,484 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 07:26:22,484 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 07:26:22,485 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 07:26:22,485 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 07:26:22,485 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 07:26:22,485 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:26:22,485 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 07:26:22,485 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 07:26:22,486 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 07:26:22,486 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 07:26:22,486 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 07:26:22,486 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 07:26:22,486 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:26:22,487 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:26:22,487 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 07:26:22,487 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 07:26:22,487 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 07:26:22,487 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 07:26:22,487 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 07:26:22,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 07:26:22,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 07:26:22,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 07:26:22,488 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 07:26:22,488 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 07:26:22,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 07:26:22,489 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 07:26:22,489 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 07:26:22,489 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 07:26:22,489 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 07:26:22,489 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 07:26:22,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 07:26:22,490 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 07:26:22,490 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 07:26:22,490 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 07:26:22,490 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 07:26:22,490 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 07:26:22,490 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 07:26:22,491 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 07:26:22,491 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 07:26:22,491 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 07:26:22,491 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 07:26:22,491 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 07:26:22,491 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 07:26:22,492 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 07:26:22,492 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 07:26:22,492 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 07:26:22,492 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 07:26:22,492 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 07:26:22,492 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 07:26:22,493 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 07:26:22,493 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-25 07:26:22,493 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 07:26:22,493 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 07:26:22,493 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 07:26:22,493 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 07:26:22,494 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 07:26:22,494 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 07:26:22,494 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 07:26:22,494 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:26:22,494 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 07:26:22,494 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 07:26:22,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:26:22,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 07:26:22,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:26:23,777 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:26:23,777 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 07:26:23,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:26:23 BoogieIcfgContainer [2020-09-25 07:26:23,785 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:26:23,786 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:26:23,786 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:26:23,790 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:26:23,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:26:21" (1/3) ... [2020-09-25 07:26:23,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1be7edfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:26:23, skipping insertion in model container [2020-09-25 07:26:23,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:26:22" (2/3) ... [2020-09-25 07:26:23,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1be7edfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:26:23, skipping insertion in model container [2020-09-25 07:26:23,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:26:23" (3/3) ... [2020-09-25 07:26:23,794 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product41.cil.c [2020-09-25 07:26:23,806 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:26:23,818 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 07:26:23,845 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 07:26:23,880 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:26:23,880 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:26:23,881 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:26:23,881 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:26:23,881 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:26:23,881 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:26:23,881 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:26:23,881 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:26:23,911 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states. [2020-09-25 07:26:23,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 07:26:23,929 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:26:23,931 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 07:26:23,931 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:26:23,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:26:23,940 INFO L82 PathProgramCache]: Analyzing trace with hash -304356178, now seen corresponding path program 1 times [2020-09-25 07:26:23,949 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:26:23,950 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [885938571] [2020-09-25 07:26:23,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:26:24,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:24,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:24,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:25,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:26,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:26,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:29,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:29,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 07:26:29,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:26:29,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5053 [2020-09-25 07:26:29,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:29,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:29,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:29,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 07:26:29,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:29,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 07:26:29,869 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:26:29,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:26:29,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:29,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:30,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:30,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:26:30,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:30,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-09-25 07:26:30,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:30,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:30,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:30,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:30,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:30,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:30,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:26:30,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:30,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:30,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:30,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:26:30,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:30,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:26:30,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:30,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:30,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:30,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:30,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:30,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:30,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:26:30,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:30,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:30,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:30,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:26:30,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:30,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:26:30,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:30,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:30,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:30,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:30,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:30,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:30,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:26:30,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:30,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:30,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:30,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:26:30,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:30,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 07:26:30,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:30,157 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:30,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:30,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:30,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:30,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:30,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:26:30,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:30,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:30,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:30,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:26:30,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:30,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:26:30,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:30,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:30,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:30,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:30,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:30,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:30,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 07:26:30,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:30,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:30,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:30,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:26:30,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:30,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:26:30,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:30,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:30,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:30,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:26:30,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:30,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:26:30,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 07:26:30,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:30,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:30,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:30,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:26:30,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:30,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:26:30,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:30,190 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:30,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:30,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:26:30,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:30,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:30,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:26:30,228 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [885938571] [2020-09-25 07:26:30,231 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:26:30,231 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 07:26:30,232 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463450168] [2020-09-25 07:26:30,242 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 07:26:30,243 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:26:30,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 07:26:30,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:26:30,265 INFO L87 Difference]: Start difference. First operand 295 states. Second operand 3 states. [2020-09-25 07:26:31,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:26:31,608 INFO L93 Difference]: Finished difference Result 455 states and 541 transitions. [2020-09-25 07:26:31,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 07:26:31,610 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-25 07:26:31,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:26:31,632 INFO L225 Difference]: With dead ends: 455 [2020-09-25 07:26:31,632 INFO L226 Difference]: Without dead ends: 285 [2020-09-25 07:26:31,638 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:26:31,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2020-09-25 07:26:31,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 244. [2020-09-25 07:26:31,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2020-09-25 07:26:31,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 264 transitions. [2020-09-25 07:26:31,793 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 264 transitions. Word has length 142 [2020-09-25 07:26:31,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:26:31,796 INFO L479 AbstractCegarLoop]: Abstraction has 244 states and 264 transitions. [2020-09-25 07:26:31,796 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 07:26:31,797 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 264 transitions. [2020-09-25 07:26:31,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-25 07:26:31,808 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:26:31,808 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 07:26:31,808 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:26:31,808 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:26:31,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:26:31,810 INFO L82 PathProgramCache]: Analyzing trace with hash -971808182, now seen corresponding path program 1 times [2020-09-25 07:26:31,810 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:26:31,810 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1715576150] [2020-09-25 07:26:31,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:26:31,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:31,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:32,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:32,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:33,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:33,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:36,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:36,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 07:26:36,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:26:36,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-09-25 07:26:36,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:36,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:36,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:26:36,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 07:26:36,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 07:26:36,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:37,196 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:26:37,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:26:37,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:37,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:37,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:37,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:26:37,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:37,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 245 [2020-09-25 07:26:37,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:37,475 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:37,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:26:37,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:37,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 07:26:37,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:37,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:26:37,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:37,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:37,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:37,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:26:37,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:37,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:26:37,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:37,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:37,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:26:37,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:37,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:26:37,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:37,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:26:37,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:37,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:37,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:37,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:26:37,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:37,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:26:37,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:37,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:37,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:26:37,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:37,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:26:37,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:37,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:26:37,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:37,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:37,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:37,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:26:37,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:37,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 07:26:37,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:37,581 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:37,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:26:37,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:37,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:26:37,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:37,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:26:37,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:37,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:37,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:37,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:26:37,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:37,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:26:37,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:37,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:37,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:26:37,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:37,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:26:37,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:37,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 07:26:37,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:37,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:37,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:37,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:26:37,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:37,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:26:37,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:37,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:37,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:37,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:26:37,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:37,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:37,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 07:26:37,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:37,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:37,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:37,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:26:37,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:37,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:26:37,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:37,621 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:37,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:37,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:26:37,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:37,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:37,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:26:37,649 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1715576150] [2020-09-25 07:26:37,650 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:26:37,650 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 07:26:37,651 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372006256] [2020-09-25 07:26:37,654 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 07:26:37,654 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:26:37,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 07:26:37,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:26:37,655 INFO L87 Difference]: Start difference. First operand 244 states and 264 transitions. Second operand 4 states. [2020-09-25 07:26:38,156 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 07:26:39,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:26:39,129 INFO L93 Difference]: Finished difference Result 419 states and 482 transitions. [2020-09-25 07:26:39,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 07:26:39,130 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-25 07:26:39,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:26:39,136 INFO L225 Difference]: With dead ends: 419 [2020-09-25 07:26:39,136 INFO L226 Difference]: Without dead ends: 285 [2020-09-25 07:26:39,139 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 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 07:26:39,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2020-09-25 07:26:39,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 244. [2020-09-25 07:26:39,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2020-09-25 07:26:39,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 263 transitions. [2020-09-25 07:26:39,186 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 263 transitions. Word has length 143 [2020-09-25 07:26:39,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:26:39,187 INFO L479 AbstractCegarLoop]: Abstraction has 244 states and 263 transitions. [2020-09-25 07:26:39,187 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 07:26:39,187 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 263 transitions. [2020-09-25 07:26:39,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-09-25 07:26:39,191 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:26:39,191 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] [2020-09-25 07:26:39,191 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:26:39,191 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:26:39,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:26:39,192 INFO L82 PathProgramCache]: Analyzing trace with hash 1993028941, now seen corresponding path program 1 times [2020-09-25 07:26:39,192 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:26:39,192 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1949336176] [2020-09-25 07:26:39,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:26:39,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:39,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:39,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:39,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:42,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:44,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:44,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:44,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:44,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 07:26:44,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 07:26:44,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-09-25 07:26:44,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:44,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:44,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:26:44,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 07:26:44,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 07:26:44,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:44,676 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:26:44,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:26:44,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:44,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:44,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:44,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:26:44,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:44,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-09-25 07:26:44,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:44,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:44,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:44,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:44,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:44,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:44,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:26:44,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:44,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:44,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:44,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:26:44,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:44,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:26:44,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:44,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:44,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:44,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:44,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:44,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:44,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:26:44,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:44,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:44,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:44,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:26:44,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:44,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:26:44,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:44,864 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:44,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:44,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:44,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:44,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:44,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:26:44,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:44,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:44,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:44,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:26:44,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:44,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:26:44,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:44,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:44,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:44,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:44,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:44,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:44,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:26:44,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:44,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:44,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:44,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:26:44,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:44,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:26:44,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:44,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:44,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:44,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:44,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:44,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:44,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 07:26:44,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:44,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:44,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:44,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 07:26:44,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:44,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:26:44,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:44,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:44,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:44,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 07:26:44,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:44,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:44,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:26:44,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:44,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:44,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:44,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:26:44,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:44,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:26:44,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:44,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:44,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:44,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:44,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:44,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:44,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 07:26:44,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:44,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:44,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:44,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:26:44,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:44,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:26:44,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:44,910 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:44,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:44,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:26:44,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:44,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:44,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 07:26:44,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:44,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:44,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:44,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:26:44,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:44,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:26:44,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:44,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:44,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:44,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:26:44,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:44,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:44,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:26:44,968 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1949336176] [2020-09-25 07:26:44,968 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:26:44,969 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 07:26:44,969 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109990026] [2020-09-25 07:26:44,971 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:26:44,971 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:26:44,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:26:44,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:26:44,974 INFO L87 Difference]: Start difference. First operand 244 states and 263 transitions. Second operand 5 states. [2020-09-25 07:26:45,795 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:26:46,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:26:46,830 INFO L93 Difference]: Finished difference Result 396 states and 450 transitions. [2020-09-25 07:26:46,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 07:26:46,831 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 151 [2020-09-25 07:26:46,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:26:46,834 INFO L225 Difference]: With dead ends: 396 [2020-09-25 07:26:46,834 INFO L226 Difference]: Without dead ends: 292 [2020-09-25 07:26:46,836 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:26:46,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2020-09-25 07:26:46,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 234. [2020-09-25 07:26:46,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-09-25 07:26:46,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 250 transitions. [2020-09-25 07:26:46,872 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 250 transitions. Word has length 151 [2020-09-25 07:26:46,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:26:46,873 INFO L479 AbstractCegarLoop]: Abstraction has 234 states and 250 transitions. [2020-09-25 07:26:46,873 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:26:46,873 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 250 transitions. [2020-09-25 07:26:46,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-25 07:26:46,875 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:26:46,876 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] [2020-09-25 07:26:46,876 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 07:26:46,876 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:26:46,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:26:46,877 INFO L82 PathProgramCache]: Analyzing trace with hash 959835140, now seen corresponding path program 1 times [2020-09-25 07:26:46,877 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:26:46,877 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1343489190] [2020-09-25 07:26:46,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:26:46,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:46,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:47,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:48,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:49,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:49,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:51,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:51,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-09-25 07:26:51,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:26:51,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-09-25 07:26:51,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:51,949 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:51,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:26:51,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 07:26:51,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:26:51,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:26:52,292 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:26:52,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:26:52,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:52,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:52,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:52,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:26:52,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:52,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-09-25 07:26:52,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:52,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:52,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:52,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:52,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:52,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:52,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:26:52,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:52,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:52,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:52,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:26:52,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:52,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:26:52,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:52,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:52,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:52,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:52,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:52,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:52,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:26:52,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:52,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:52,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:52,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:26:52,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:52,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:26:52,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:52,475 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:52,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:52,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:52,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:52,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:52,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:26:52,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:52,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:52,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:52,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:26:52,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:52,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:26:52,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:52,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:52,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:52,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:52,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:52,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:52,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:26:52,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:52,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:52,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:52,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:26:52,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:52,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:26:52,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:52,493 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:52,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:52,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:52,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:52,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:52,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 07:26:52,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:52,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:52,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:52,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 07:26:52,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:52,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:26:52,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:52,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:52,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:26:52,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 07:26:52,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 07:26:52,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:52,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:26:52,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:52,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:52,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:52,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:26:52,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:52,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:26:52,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:52,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:52,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:26:52,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:52,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:26:52,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:26:52,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-25 07:26:52,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:52,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:52,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:52,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:26:52,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:52,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:26:52,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:52,549 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:52,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:52,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:26:52,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:52,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:52,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 07:26:52,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:52,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:52,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:52,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:26:52,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:52,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:26:52,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:52,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:52,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:52,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:26:52,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:52,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:52,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:26:52,696 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1343489190] [2020-09-25 07:26:52,696 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:26:52,696 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 07:26:52,697 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749083793] [2020-09-25 07:26:52,698 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 07:26:52,698 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:26:52,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 07:26:52,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 07:26:52,699 INFO L87 Difference]: Start difference. First operand 234 states and 250 transitions. Second operand 6 states. [2020-09-25 07:26:53,362 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 07:26:54,820 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:26:55,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:26:55,476 INFO L93 Difference]: Finished difference Result 514 states and 584 transitions. [2020-09-25 07:26:55,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 07:26:55,477 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 160 [2020-09-25 07:26:55,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:26:55,482 INFO L225 Difference]: With dead ends: 514 [2020-09-25 07:26:55,482 INFO L226 Difference]: Without dead ends: 390 [2020-09-25 07:26:55,483 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-09-25 07:26:55,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2020-09-25 07:26:55,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 331. [2020-09-25 07:26:55,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 331 states. [2020-09-25 07:26:55,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 357 transitions. [2020-09-25 07:26:55,563 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 357 transitions. Word has length 160 [2020-09-25 07:26:55,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:26:55,565 INFO L479 AbstractCegarLoop]: Abstraction has 331 states and 357 transitions. [2020-09-25 07:26:55,565 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 07:26:55,565 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 357 transitions. [2020-09-25 07:26:55,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2020-09-25 07:26:55,567 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:26:55,567 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] [2020-09-25 07:26:55,568 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 07:26:55,568 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:26:55,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:26:55,568 INFO L82 PathProgramCache]: Analyzing trace with hash 1575421587, now seen corresponding path program 1 times [2020-09-25 07:26:55,568 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:26:55,569 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [4347013] [2020-09-25 07:26:55,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:26:55,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:55,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:55,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:57,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:58,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:58,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:58,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:00,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:00,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 221 [2020-09-25 07:27:00,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 07:27:00,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-09-25 07:27:00,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:00,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:00,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:27:00,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 07:27:00,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-25 07:27:00,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:27:00,942 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:27:00,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:27:00,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:00,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:01,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:01,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:27:01,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:01,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-25 07:27:01,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:01,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:01,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:01,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:01,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:01,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:01,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:27:01,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:01,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:01,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:01,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:27:01,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:01,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:27:01,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:01,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:01,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:01,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:01,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:01,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:01,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:27:01,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:01,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:01,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:01,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:27:01,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:01,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:27:01,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:01,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:01,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:01,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:01,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:01,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:01,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:27:01,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:01,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:01,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:01,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:27:01,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:01,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:27:01,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:01,090 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:01,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:01,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:01,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:01,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:27:01,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:27:01,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:01,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:01,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:01,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:27:01,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:01,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:27:01,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:01,096 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:01,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:01,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:01,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:01,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:01,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 07:27:01,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:01,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:01,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:01,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:01,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:01,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:01,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 07:27:01,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:27:01,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 663 [2020-09-25 07:27:01,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:01,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:01,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:27:01,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:01,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 07:27:01,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:27:01,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:27:01,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:01,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:01,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:01,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:01,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 07:27:01,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:27:01,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-25 07:27:01,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:01,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:01,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:27:01,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:01,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 07:27:01,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:01,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:27:01,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:01,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:01,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:01,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:27:01,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:01,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:27:01,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:01,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:01,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:01,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:01,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:01,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:01,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 07:27:01,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:01,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:01,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:01,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:27:01,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:01,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:27:01,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:01,864 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:01,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:27:01,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:01,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:27:01,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:01,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-09-25 07:27:01,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:01,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:01,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:01,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:27:01,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:01,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:27:01,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:01,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:01,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:27:01,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:01,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:27:01,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:27:01,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-09-25 07:27:01,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:01,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:01,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:01,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:27:01,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:01,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:27:01,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:01,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:01,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:27:01,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:01,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:27:01,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:27:01,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:27:01,940 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [4347013] [2020-09-25 07:27:01,940 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:27:01,941 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 07:27:01,941 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091946987] [2020-09-25 07:27:01,941 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 07:27:01,942 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:27:01,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 07:27:01,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 07:27:01,942 INFO L87 Difference]: Start difference. First operand 331 states and 357 transitions. Second operand 9 states. [2020-09-25 07:27:02,496 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 07:27:04,003 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 07:27:04,295 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 07:27:04,639 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:27:05,418 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 07:27:05,785 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:27:06,116 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 07:27:06,422 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:27:06,704 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 07:27:06,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:27:06,821 INFO L93 Difference]: Finished difference Result 393 states and 439 transitions. [2020-09-25 07:27:06,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 07:27:06,822 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 184 [2020-09-25 07:27:06,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:27:06,826 INFO L225 Difference]: With dead ends: 393 [2020-09-25 07:27:06,826 INFO L226 Difference]: Without dead ends: 390 [2020-09-25 07:27:06,827 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 07:27:06,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2020-09-25 07:27:06,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 331. [2020-09-25 07:27:06,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 331 states. [2020-09-25 07:27:06,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 356 transitions. [2020-09-25 07:27:06,869 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 356 transitions. Word has length 184 [2020-09-25 07:27:06,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:27:06,870 INFO L479 AbstractCegarLoop]: Abstraction has 331 states and 356 transitions. [2020-09-25 07:27:06,870 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 07:27:06,870 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 356 transitions. [2020-09-25 07:27:06,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2020-09-25 07:27:06,873 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:27:06,873 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:27:06,874 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 07:27:06,874 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:27:06,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:27:06,874 INFO L82 PathProgramCache]: Analyzing trace with hash 714160235, now seen corresponding path program 1 times [2020-09-25 07:27:06,874 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:27:06,875 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2112615935] [2020-09-25 07:27:06,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:27:06,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:06,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:07,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:07,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking...