/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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 SequenceOfStatements --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=0.6 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product41.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 16:40:52,569 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 16:40:52,573 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 16:40:52,625 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 16:40:52,626 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 16:40:52,628 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 16:40:52,629 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 16:40:52,632 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 16:40:52,634 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 16:40:52,635 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 16:40:52,637 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 16:40:52,638 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 16:40:52,639 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 16:40:52,640 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 16:40:52,641 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 16:40:52,643 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 16:40:52,644 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 16:40:52,645 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 16:40:52,647 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 16:40:52,650 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 16:40:52,652 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 16:40:52,655 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 16:40:52,657 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 16:40:52,658 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 16:40:52,675 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 16:40:52,675 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 16:40:52,676 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 16:40:52,677 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 16:40:52,678 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 16:40:52,679 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 16:40:52,679 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 16:40:52,680 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 16:40:52,681 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 16:40:52,682 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 16:40:52,683 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 16:40:52,684 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 16:40:52,685 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 16:40:52,685 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 16:40:52,685 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 16:40:52,686 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 16:40:52,687 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 16:40:52,688 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 [2020-10-28 16:40:52,714 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 16:40:52,714 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 16:40:52,716 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 16:40:52,716 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 16:40:52,716 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 16:40:52,717 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 16:40:52,717 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 16:40:52,717 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 16:40:52,717 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 16:40:52,717 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 16:40:52,718 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 16:40:52,718 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 16:40:52,718 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 16:40:52,718 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 16:40:52,719 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 16:40:52,719 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 16:40:52,719 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 16:40:52,719 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 16:40:52,719 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 16:40:52,720 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 16:40:52,720 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 16:40:52,720 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 16:40:52,720 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 16:40:52,720 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 16:40:52,721 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 16:40:52,721 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 16:40:52,721 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 16:40:52,721 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 16:40:52,721 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 16:40:52,722 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 16:40:53,115 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 16:40:53,140 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 16:40:53,143 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 16:40:53,144 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 16:40:53,146 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 16:40:53,147 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product41.cil.c [2020-10-28 16:40:53,235 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/34ff0442b/634597e25c254973ac13c02558fb0086/FLAG13407a255 [2020-10-28 16:40:53,894 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 16:40:53,895 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product41.cil.c [2020-10-28 16:40:53,913 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/34ff0442b/634597e25c254973ac13c02558fb0086/FLAG13407a255 [2020-10-28 16:40:54,204 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/34ff0442b/634597e25c254973ac13c02558fb0086 [2020-10-28 16:40:54,208 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 16:40:54,215 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 16:40:54,217 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 16:40:54,217 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 16:40:54,221 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 16:40:54,222 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 04:40:54" (1/1) ... [2020-10-28 16:40:54,226 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36bf5314 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:40:54, skipping insertion in model container [2020-10-28 16:40:54,227 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 04:40:54" (1/1) ... [2020-10-28 16:40:54,235 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 16:40:54,308 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 16:40:54,723 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 16:40:54,744 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 16:40:54,905 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 16:40:54,951 INFO L208 MainTranslator]: Completed translation [2020-10-28 16:40:54,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:40:54 WrapperNode [2020-10-28 16:40:54,953 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 16:40:54,956 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 16:40:54,956 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 16:40:54,956 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 16:40:54,971 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:40:54" (1/1) ... [2020-10-28 16:40:54,973 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:40:54" (1/1) ... [2020-10-28 16:40:55,015 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:40:54" (1/1) ... [2020-10-28 16:40:55,015 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:40:54" (1/1) ... [2020-10-28 16:40:55,071 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:40:54" (1/1) ... [2020-10-28 16:40:55,092 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:40:54" (1/1) ... [2020-10-28 16:40:55,097 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:40:54" (1/1) ... [2020-10-28 16:40:55,105 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 16:40:55,106 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 16:40:55,106 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 16:40:55,106 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 16:40:55,107 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:40:54" (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 [2020-10-28 16:40:55,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 16:40:55,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 16:40:55,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-28 16:40:55,191 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 16:40:55,192 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-28 16:40:55,192 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-28 16:40:55,193 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-28 16:40:55,193 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-28 16:40:55,193 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-28 16:40:55,193 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-28 16:40:55,194 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-28 16:40:55,195 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-28 16:40:55,195 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-28 16:40:55,195 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-28 16:40:55,195 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-28 16:40:55,196 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-28 16:40:55,196 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-28 16:40:55,196 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-28 16:40:55,197 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-28 16:40:55,197 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-28 16:40:55,197 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-28 16:40:55,197 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-10-28 16:40:55,197 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-28 16:40:55,197 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-28 16:40:55,197 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-28 16:40:55,198 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-28 16:40:55,198 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-28 16:40:55,198 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-28 16:40:55,198 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-28 16:40:55,198 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-28 16:40:55,198 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-28 16:40:55,199 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-28 16:40:55,199 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 16:40:55,199 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-28 16:40:55,199 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-28 16:40:55,200 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-28 16:40:55,200 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-28 16:40:55,200 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-28 16:40:55,200 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-10-28 16:40:55,200 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 16:40:55,200 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 16:40:55,201 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 16:40:55,201 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 16:40:55,201 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 16:40:55,201 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-28 16:40:55,201 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-28 16:40:55,201 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-28 16:40:55,202 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-28 16:40:55,202 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-28 16:40:55,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-28 16:40:55,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 16:40:55,202 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-28 16:40:55,203 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-28 16:40:55,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 16:40:55,204 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-28 16:40:55,204 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-28 16:40:55,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 16:40:55,204 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-28 16:40:55,204 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-28 16:40:55,204 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-28 16:40:55,205 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-28 16:40:55,205 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-28 16:40:55,205 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-28 16:40:55,205 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-28 16:40:55,206 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-28 16:40:55,206 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-28 16:40:55,206 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-28 16:40:55,206 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-28 16:40:55,206 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-28 16:40:55,206 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-28 16:40:55,207 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-28 16:40:55,207 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-28 16:40:55,209 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-28 16:40:55,209 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-28 16:40:55,210 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-10-28 16:40:55,210 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-28 16:40:55,210 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-28 16:40:55,210 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-28 16:40:55,211 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-10-28 16:40:55,211 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-28 16:40:55,211 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-28 16:40:55,211 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-28 16:40:55,211 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-28 16:40:55,212 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-28 16:40:55,212 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-28 16:40:55,213 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-28 16:40:55,213 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 16:40:55,213 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-28 16:40:55,213 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-28 16:40:55,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 16:40:55,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 16:40:55,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 16:40:56,849 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 16:40:56,850 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-28 16:40:56,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 04:40:56 BoogieIcfgContainer [2020-10-28 16:40:56,855 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 16:40:56,859 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 16:40:56,859 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 16:40:56,863 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 16:40:56,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 04:40:54" (1/3) ... [2020-10-28 16:40:56,865 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b8be60c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 04:40:56, skipping insertion in model container [2020-10-28 16:40:56,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:40:54" (2/3) ... [2020-10-28 16:40:56,866 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b8be60c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 04:40:56, skipping insertion in model container [2020-10-28 16:40:56,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 04:40:56" (3/3) ... [2020-10-28 16:40:56,868 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product41.cil.c [2020-10-28 16:40:56,881 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 16:40:56,887 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-28 16:40:56,901 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-28 16:40:56,947 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 16:40:56,948 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 16:40:56,948 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 16:40:56,948 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 16:40:56,949 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 16:40:56,950 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 16:40:56,950 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 16:40:56,950 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 16:40:56,973 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states. [2020-10-28 16:40:56,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-28 16:40:56,983 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:40:56,984 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] [2020-10-28 16:40:56,985 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 16:40:56,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:40:56,992 INFO L82 PathProgramCache]: Analyzing trace with hash 934160897, now seen corresponding path program 1 times [2020-10-28 16:40:57,002 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:40:57,002 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1605140781] [2020-10-28 16:40:57,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:40:57,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:40:57,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:40:57,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:40:57,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:40:59,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:40:59,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:02,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:02,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-28 16:41:02,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 16:41:02,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-28 16:41:02,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:02,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:02,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:02,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-28 16:41:02,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:02,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-28 16:41:03,063 WARN L193 SmtUtils]: Spent 671.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:41:03,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:41:03,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:03,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:03,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:03,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:03,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:03,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-28 16:41:03,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:03,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:03,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:03,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:03,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:03,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:41:03,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:41:03,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:03,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:03,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:03,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:41:03,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:03,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:03,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:03,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:03,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:03,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:03,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:03,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:41:03,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:41:03,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:03,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:03,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:03,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:41:03,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:03,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:03,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:03,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:03,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:03,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:03,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:03,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:03,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:41:03,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:03,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:03,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:03,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:03,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:03,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:41:03,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:03,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:03,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:03,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:03,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:03,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:41:03,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:41:03,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:03,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:03,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:03,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:41:03,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:03,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:03,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:03,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:03,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:03,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:03,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:03,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:41:03,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-28 16:41:03,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:03,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:03,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:03,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:03,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:03,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:03,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:03,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:03,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:03,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:41:03,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:03,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:03,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-28 16:41:03,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:03,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:03,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:03,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:03,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:03,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:03,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:03,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:03,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:03,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:41:03,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:03,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:41:03,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 16:41:03,267 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1605140781] [2020-10-28 16:41:03,269 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:41:03,269 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-28 16:41:03,270 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458248282] [2020-10-28 16:41:03,276 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-28 16:41:03,276 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:41:03,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-28 16:41:03,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-28 16:41:03,293 INFO L87 Difference]: Start difference. First operand 164 states. Second operand 3 states. [2020-10-28 16:41:05,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:41:05,423 INFO L93 Difference]: Finished difference Result 280 states and 367 transitions. [2020-10-28 16:41:05,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-28 16:41:05,426 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2020-10-28 16:41:05,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:41:05,440 INFO L225 Difference]: With dead ends: 280 [2020-10-28 16:41:05,440 INFO L226 Difference]: Without dead ends: 150 [2020-10-28 16:41:05,445 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-28 16:41:05,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2020-10-28 16:41:05,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 118. [2020-10-28 16:41:05,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2020-10-28 16:41:05,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 138 transitions. [2020-10-28 16:41:05,542 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 138 transitions. Word has length 47 [2020-10-28 16:41:05,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:41:05,542 INFO L481 AbstractCegarLoop]: Abstraction has 118 states and 138 transitions. [2020-10-28 16:41:05,542 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-28 16:41:05,543 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 138 transitions. [2020-10-28 16:41:05,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-28 16:41:05,546 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:41:05,546 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] [2020-10-28 16:41:05,547 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 16:41:05,547 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 16:41:05,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:41:05,548 INFO L82 PathProgramCache]: Analyzing trace with hash -223096908, now seen corresponding path program 1 times [2020-10-28 16:41:05,548 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:41:05,549 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [201571692] [2020-10-28 16:41:05,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:41:05,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:05,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:05,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:05,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:07,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:07,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:10,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:10,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-28 16:41:10,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 16:41:10,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-28 16:41:10,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:10,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:10,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:41:10,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:41:10,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-28 16:41:10,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:11,319 WARN L193 SmtUtils]: Spent 650.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:41:11,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:41:11,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:11,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:11,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:11,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:11,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:11,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-28 16:41:11,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:11,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:11,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:41:11,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:11,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 16:41:11,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:11,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:41:11,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:11,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:11,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:11,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:41:11,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:11,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:11,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:11,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:11,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:41:11,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:11,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:41:11,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 16:41:11,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:41:11,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:11,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:11,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:11,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:41:11,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:11,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 16:41:11,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:11,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:11,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:41:11,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:11,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:41:11,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:11,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:41:11,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:11,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:11,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:11,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:11,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:11,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 16:41:11,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:11,505 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:11,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:41:11,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:11,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:41:11,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:11,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:41:11,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:11,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:11,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:11,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:41:11,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:11,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:41:11,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:11,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:11,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:41:11,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:11,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:41:11,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:11,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-28 16:41:11,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:11,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:11,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:11,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:11,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:11,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 16:41:11,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:11,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:11,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:11,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:41:11,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:11,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:11,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-28 16:41:11,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:11,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:11,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:11,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:11,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:11,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:11,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:11,530 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:11,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:11,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:41:11,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:11,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:11,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 16:41:11,543 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [201571692] [2020-10-28 16:41:11,544 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:41:11,544 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 16:41:11,544 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015483368] [2020-10-28 16:41:11,546 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 16:41:11,548 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:41:11,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 16:41:11,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 16:41:11,554 INFO L87 Difference]: Start difference. First operand 118 states and 138 transitions. Second operand 5 states. [2020-10-28 16:41:12,507 WARN L193 SmtUtils]: Spent 717.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-28 16:41:14,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:41:14,573 INFO L93 Difference]: Finished difference Result 244 states and 307 transitions. [2020-10-28 16:41:14,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 16:41:14,574 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 48 [2020-10-28 16:41:14,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:41:14,578 INFO L225 Difference]: With dead ends: 244 [2020-10-28 16:41:14,578 INFO L226 Difference]: Without dead ends: 150 [2020-10-28 16:41:14,580 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 16:41:14,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2020-10-28 16:41:14,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 118. [2020-10-28 16:41:14,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2020-10-28 16:41:14,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 137 transitions. [2020-10-28 16:41:14,632 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 137 transitions. Word has length 48 [2020-10-28 16:41:14,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:41:14,633 INFO L481 AbstractCegarLoop]: Abstraction has 118 states and 137 transitions. [2020-10-28 16:41:14,633 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 16:41:14,633 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 137 transitions. [2020-10-28 16:41:14,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-10-28 16:41:14,635 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:41:14,635 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] [2020-10-28 16:41:14,636 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 16:41:14,636 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 16:41:14,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:41:14,637 INFO L82 PathProgramCache]: Analyzing trace with hash 1851301048, now seen corresponding path program 1 times [2020-10-28 16:41:14,637 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:41:14,637 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [710095085] [2020-10-28 16:41:14,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:41:14,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:14,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:14,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:15,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:16,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:17,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:19,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:19,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-28 16:41:19,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 16:41:19,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-28 16:41:19,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:19,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:19,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 16:41:19,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-10-28 16:41:19,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 16:41:19,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:20,375 WARN L193 SmtUtils]: Spent 637.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:41:20,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:41:20,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:20,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:20,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:20,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:20,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:20,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-28 16:41:20,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:20,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:20,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:20,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:20,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:20,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:20,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:41:20,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:20,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:20,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:20,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:41:20,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:20,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:20,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:20,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:20,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:20,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:20,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:20,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:20,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:41:20,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:20,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:20,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:20,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:41:20,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:20,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 16:41:20,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:20,472 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:20,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:20,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:20,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:20,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:20,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:41:20,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:20,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:20,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:20,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:20,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:20,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:20,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:20,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:20,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:20,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:20,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:20,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:41:20,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:41:20,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:20,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:20,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:20,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:41:20,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:20,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:20,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:20,486 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:20,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:20,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:20,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:20,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:20,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-28 16:41:20,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:20,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:20,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:20,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-28 16:41:20,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:20,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 16:41:20,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:20,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:20,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 16:41:20,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 16:41:20,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-28 16:41:20,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:20,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 16:41:20,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:20,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:20,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:20,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:41:20,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:20,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 16:41:20,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:20,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:20,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:41:20,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:20,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:41:20,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:41:20,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-28 16:41:20,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:20,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:20,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:20,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:20,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:20,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:20,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:20,549 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:20,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:20,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:41:20,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:20,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:41:20,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-28 16:41:20,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:20,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:20,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:20,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:20,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:20,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:41:20,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:20,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:20,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:20,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:41:20,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:20,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:20,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 16:41:20,573 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [710095085] [2020-10-28 16:41:20,573 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:41:20,574 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 16:41:20,574 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658800657] [2020-10-28 16:41:20,576 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 16:41:20,577 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:41:20,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 16:41:20,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-28 16:41:20,578 INFO L87 Difference]: Start difference. First operand 118 states and 137 transitions. Second operand 6 states. [2020-10-28 16:41:21,407 WARN L193 SmtUtils]: Spent 600.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-28 16:41:23,736 WARN L193 SmtUtils]: Spent 707.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-28 16:41:25,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:41:25,827 INFO L93 Difference]: Finished difference Result 351 states and 454 transitions. [2020-10-28 16:41:25,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 16:41:25,828 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 60 [2020-10-28 16:41:25,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:41:25,831 INFO L225 Difference]: With dead ends: 351 [2020-10-28 16:41:25,832 INFO L226 Difference]: Without dead ends: 257 [2020-10-28 16:41:25,834 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-28 16:41:25,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2020-10-28 16:41:25,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 201. [2020-10-28 16:41:25,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2020-10-28 16:41:25,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 240 transitions. [2020-10-28 16:41:25,908 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 240 transitions. Word has length 60 [2020-10-28 16:41:25,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:41:25,908 INFO L481 AbstractCegarLoop]: Abstraction has 201 states and 240 transitions. [2020-10-28 16:41:25,908 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 16:41:25,908 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 240 transitions. [2020-10-28 16:41:25,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-10-28 16:41:25,911 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:41:25,911 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] [2020-10-28 16:41:25,912 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 16:41:25,912 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 16:41:25,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:41:25,912 INFO L82 PathProgramCache]: Analyzing trace with hash 802472840, now seen corresponding path program 1 times [2020-10-28 16:41:25,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:41:25,913 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1903744543] [2020-10-28 16:41:25,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:41:25,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:25,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:25,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:26,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:27,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:27,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:30,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:30,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 16:41:30,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 16:41:30,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-28 16:41:30,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:30,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:30,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:41:30,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-28 16:41:30,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-28 16:41:30,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:31,594 WARN L193 SmtUtils]: Spent 578.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:41:31,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:41:31,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:31,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:31,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:31,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:31,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:31,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 16:41:31,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:31,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:31,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:31,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:31,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:31,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:31,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:41:31,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:31,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:31,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:31,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:41:31,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:31,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 16:41:31,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:31,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:31,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:31,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:31,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:31,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:31,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:41:31,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:31,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:31,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:31,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:41:31,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:31,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 16:41:31,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:31,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:31,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:31,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:31,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:31,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:31,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:41:31,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:31,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:31,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:31,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:31,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:31,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:31,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:31,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:31,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:31,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:31,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:31,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:31,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:41:31,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:31,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:31,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:31,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:41:31,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:31,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 16:41:31,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:31,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:31,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:31,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:31,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:31,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:31,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-28 16:41:31,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:31,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:31,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:31,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-28 16:41:31,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:31,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 16:41:31,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:31,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:31,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:31,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-28 16:41:31,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:31,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:31,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 16:41:31,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:31,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:31,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:31,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 16:41:31,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:31,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 16:41:31,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:31,685 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:31,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:31,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:31,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:31,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:31,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 16:41:31,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:31,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:31,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:31,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 16:41:31,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:31,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:31,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:31,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:31,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:31,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:31,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:31,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:31,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-28 16:41:31,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:31,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:31,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:31,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:41:31,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:31,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 16:41:31,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:31,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:31,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:31,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:31,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:31,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:31,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-28 16:41:31,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:31,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:31,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:31,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:31,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:31,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:31,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:31,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:31,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:31,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:41:31,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:31,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:31,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-28 16:41:31,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:31,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:31,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:31,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:31,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:31,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:31,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:31,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:31,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:31,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:41:31,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:31,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:31,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 16:41:31,717 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1903744543] [2020-10-28 16:41:31,718 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:41:31,718 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 16:41:31,718 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44132510] [2020-10-28 16:41:31,719 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 16:41:31,719 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:41:31,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 16:41:31,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 16:41:31,720 INFO L87 Difference]: Start difference. First operand 201 states and 240 transitions. Second operand 5 states. [2020-10-28 16:41:32,758 WARN L193 SmtUtils]: Spent 687.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-28 16:41:34,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:41:34,550 INFO L93 Difference]: Finished difference Result 352 states and 422 transitions. [2020-10-28 16:41:34,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 16:41:34,551 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 70 [2020-10-28 16:41:34,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:41:34,554 INFO L225 Difference]: With dead ends: 352 [2020-10-28 16:41:34,554 INFO L226 Difference]: Without dead ends: 211 [2020-10-28 16:41:34,555 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-28 16:41:34,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2020-10-28 16:41:34,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 176. [2020-10-28 16:41:34,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2020-10-28 16:41:34,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 202 transitions. [2020-10-28 16:41:34,616 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 202 transitions. Word has length 70 [2020-10-28 16:41:34,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:41:34,616 INFO L481 AbstractCegarLoop]: Abstraction has 176 states and 202 transitions. [2020-10-28 16:41:34,617 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 16:41:34,617 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 202 transitions. [2020-10-28 16:41:34,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-10-28 16:41:34,618 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:41:34,619 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 16:41:34,619 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 16:41:34,619 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 16:41:34,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:41:34,620 INFO L82 PathProgramCache]: Analyzing trace with hash -1505750285, now seen corresponding path program 1 times [2020-10-28 16:41:34,620 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:41:34,620 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [756575285] [2020-10-28 16:41:34,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:41:34,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:34,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:35,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:35,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:35,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:38,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:38,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-28 16:41:38,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 16:41:38,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4190 [2020-10-28 16:41:38,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:38,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:38,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 16:41:38,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-10-28 16:41:38,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-28 16:41:38,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:39,578 WARN L193 SmtUtils]: Spent 636.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:41:39,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:41:39,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:39,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:39,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:39,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:39,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:39,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-28 16:41:39,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:39,626 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:39,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:39,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:39,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:39,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:39,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:41:39,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:39,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:39,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:39,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:41:39,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:39,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 16:41:39,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:39,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:39,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:39,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:39,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:39,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:39,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:41:39,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:39,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:39,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:39,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:41:39,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:39,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 16:41:39,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:39,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:39,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:39,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:39,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:39,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:39,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:41:39,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:39,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:39,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:39,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:39,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:39,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:39,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:39,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:39,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:39,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:39,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:39,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:39,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:41:39,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:39,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:39,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:39,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:41:39,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:39,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 16:41:39,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:39,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:39,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:39,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:39,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:39,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:39,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-28 16:41:39,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:39,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:39,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:39,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:39,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-28 16:41:39,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 16:41:39,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 16:41:39,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:39,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:39,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:41:39,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:39,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-28 16:41:39,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:39,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 16:41:39,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:39,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:39,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:39,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 16:41:39,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:39,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 16:41:39,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:39,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:39,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:41:39,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:39,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 16:41:39,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:39,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 16:41:39,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:39,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:39,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:39,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 16:41:39,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:39,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:39,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:39,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:39,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:39,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:39,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:39,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:39,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-28 16:41:39,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:39,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:39,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:39,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:41:39,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:39,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:39,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:39,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:39,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:41:39,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:39,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:41:39,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:39,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-28 16:41:39,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:39,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:39,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:39,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:39,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:39,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:39,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:39,761 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:39,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:41:39,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:39,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:41:39,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:39,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-28 16:41:39,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:39,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:39,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:39,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:39,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:39,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 16:41:39,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:39,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:39,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 16:41:39,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:39,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:41:39,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:39,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 16:41:39,814 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [756575285] [2020-10-28 16:41:39,814 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:41:39,814 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-28 16:41:39,814 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641051856] [2020-10-28 16:41:39,815 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 16:41:39,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:41:39,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 16:41:39,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-28 16:41:39,816 INFO L87 Difference]: Start difference. First operand 176 states and 202 transitions. Second operand 8 states. [2020-10-28 16:41:40,659 WARN L193 SmtUtils]: Spent 670.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-28 16:41:43,028 WARN L193 SmtUtils]: Spent 725.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-28 16:41:43,892 WARN L193 SmtUtils]: Spent 721.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-28 16:41:45,632 WARN L193 SmtUtils]: Spent 741.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-28 16:41:46,542 WARN L193 SmtUtils]: Spent 724.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-28 16:41:47,313 WARN L193 SmtUtils]: Spent 721.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-28 16:41:47,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:41:47,607 INFO L93 Difference]: Finished difference Result 221 states and 267 transitions. [2020-10-28 16:41:47,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-28 16:41:47,608 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 74 [2020-10-28 16:41:47,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:41:47,612 INFO L225 Difference]: With dead ends: 221 [2020-10-28 16:41:47,612 INFO L226 Difference]: Without dead ends: 217 [2020-10-28 16:41:47,613 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-10-28 16:41:47,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2020-10-28 16:41:47,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 176. [2020-10-28 16:41:47,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2020-10-28 16:41:47,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 201 transitions. [2020-10-28 16:41:47,666 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 201 transitions. Word has length 74 [2020-10-28 16:41:47,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:41:47,667 INFO L481 AbstractCegarLoop]: Abstraction has 176 states and 201 transitions. [2020-10-28 16:41:47,667 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 16:41:47,667 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 201 transitions. [2020-10-28 16:41:47,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-28 16:41:47,669 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:41:47,669 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-28 16:41:47,670 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 16:41:47,670 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 16:41:47,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:41:47,670 INFO L82 PathProgramCache]: Analyzing trace with hash -161905132, now seen corresponding path program 1 times [2020-10-28 16:41:47,671 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:41:47,671 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1207761587] [2020-10-28 16:41:47,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:41:47,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:47,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:47,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:47,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:52,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:52,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-28 16:41:52,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 16:41:52,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-28 16:41:52,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:52,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:52,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 16:41:52,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-28 16:41:52,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 16:41:52,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:53,510 WARN L193 SmtUtils]: Spent 765.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:41:53,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:41:53,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:53,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:53,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:53,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:53,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:53,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-28 16:41:53,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:53,568 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:53,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:53,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:53,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:53,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:53,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:41:53,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:53,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:53,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:53,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:41:53,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:53,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 16:41:53,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:53,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:53,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:53,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:53,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:53,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:53,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:41:53,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:53,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:53,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:53,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:41:53,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:53,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 16:41:53,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:53,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:53,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:53,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:53,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:53,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:53,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:41:53,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:53,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:53,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:53,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:53,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:53,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 16:41:53,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:53,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:53,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:53,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:53,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:53,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:53,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:41:53,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:53,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:53,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:53,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:41:53,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:53,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 16:41:53,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:53,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:53,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:53,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:53,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:53,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:53,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-28 16:41:53,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:53,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:53,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:53,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-28 16:41:53,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:53,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 16:41:53,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:53,632 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:53,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 16:41:53,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-28 16:41:53,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 16:41:53,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:53,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 16:41:53,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:53,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:53,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:53,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 16:41:53,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:53,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 16:41:53,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:53,700 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:53,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 16:41:53,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:53,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-28 16:41:53,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:41:53,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 16:41:53,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:53,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:53,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:53,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 16:41:53,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:53,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:53,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:53,761 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:53,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:53,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:53,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:53,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:53,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-28 16:41:53,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:53,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:53,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:53,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-28 16:41:53,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:53,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 16:41:53,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:53,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:53,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:53,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-28 16:41:53,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:53,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:53,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 16:41:53,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:53,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:53,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:53,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 16:41:53,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:53,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:53,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:53,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:53,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:53,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:53,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:53,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:53,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 16:41:53,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:53,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:53,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:53,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:53,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:53,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 16:41:53,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:53,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:53,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:53,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:53,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:53,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:53,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:41:53,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:53,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:53,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:53,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:53,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:53,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:53,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:53,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:53,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:53,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:53,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:53,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:53,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-28 16:41:53,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:53,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:53,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:53,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:53,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:53,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:53,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:53,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:53,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:53,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:41:53,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:53,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:41:53,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-28 16:41:53,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:53,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:53,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:53,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:53,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:53,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:53,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:53,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:53,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:53,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:41:53,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:53,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:53,823 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-28 16:41:53,823 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1207761587] [2020-10-28 16:41:53,825 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:41:53,825 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-28 16:41:53,825 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848063296] [2020-10-28 16:41:53,826 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 16:41:53,826 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:41:53,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 16:41:53,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-28 16:41:53,827 INFO L87 Difference]: Start difference. First operand 176 states and 201 transitions. Second operand 8 states. [2020-10-28 16:41:55,561 WARN L193 SmtUtils]: Spent 716.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-28 16:41:56,289 WARN L193 SmtUtils]: Spent 692.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-28 16:41:57,017 WARN L193 SmtUtils]: Spent 661.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-28 16:41:57,799 WARN L193 SmtUtils]: Spent 712.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-28 16:41:59,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:41:59,426 INFO L93 Difference]: Finished difference Result 370 states and 451 transitions. [2020-10-28 16:41:59,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 16:41:59,428 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 90 [2020-10-28 16:41:59,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:41:59,431 INFO L225 Difference]: With dead ends: 370 [2020-10-28 16:41:59,431 INFO L226 Difference]: Without dead ends: 218 [2020-10-28 16:41:59,432 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2020-10-28 16:41:59,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-10-28 16:41:59,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 181. [2020-10-28 16:41:59,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2020-10-28 16:41:59,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 206 transitions. [2020-10-28 16:41:59,482 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 206 transitions. Word has length 90 [2020-10-28 16:41:59,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:41:59,482 INFO L481 AbstractCegarLoop]: Abstraction has 181 states and 206 transitions. [2020-10-28 16:41:59,482 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 16:41:59,482 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 206 transitions. [2020-10-28 16:41:59,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-28 16:41:59,484 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:41:59,484 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-28 16:41:59,486 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 16:41:59,488 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 16:41:59,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:41:59,489 INFO L82 PathProgramCache]: Analyzing trace with hash 2083674322, now seen corresponding path program 1 times [2020-10-28 16:41:59,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:41:59,489 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2010920830] [2020-10-28 16:41:59,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:41:59,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:59,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:59,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:59,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:04,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:04,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-28 16:42:04,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 16:42:04,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-28 16:42:04,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:04,529 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:04,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 16:42:04,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-28 16:42:04,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:42:04,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:05,168 WARN L193 SmtUtils]: Spent 605.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:42:05,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:42:05,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:05,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:05,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:05,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:42:05,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:05,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-28 16:42:05,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:05,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:05,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:05,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:05,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:05,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:42:05,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:42:05,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:05,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:05,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:05,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:42:05,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:05,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 16:42:05,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:05,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:05,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:05,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:05,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:05,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:05,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:42:05,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:05,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:05,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:05,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:42:05,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:05,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 16:42:05,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:05,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:05,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:05,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:05,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:05,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:05,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:42:05,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:05,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:05,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:05,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:42:05,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:05,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:05,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:05,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:05,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:05,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:05,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:05,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:05,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:42:05,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:05,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:05,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:05,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:42:05,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:05,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 16:42:05,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:05,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:05,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:05,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:05,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:05,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:05,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-28 16:42:05,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:05,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:05,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:05,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-28 16:42:05,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:05,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 16:42:05,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:05,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:05,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 16:42:05,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-28 16:42:05,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:42:05,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:05,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 16:42:05,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:05,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:05,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:05,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 16:42:05,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:05,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 16:42:05,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:05,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:05,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 16:42:05,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 16:42:05,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:42:05,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:05,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 16:42:05,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:05,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:05,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:05,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 16:42:05,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:05,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 16:42:05,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:05,347 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:05,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 16:42:05,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:05,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:42:05,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:42:05,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-28 16:42:05,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:05,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:05,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:05,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-28 16:42:05,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:05,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 16:42:05,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:05,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:05,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:05,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-28 16:42:05,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:05,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:05,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 16:42:05,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:05,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:05,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:05,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 16:42:05,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:05,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:05,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:05,405 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:05,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:05,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:05,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:05,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:42:05,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 16:42:05,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:05,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:05,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:05,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:42:05,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:05,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:05,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:05,414 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:05,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:05,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:05,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:05,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:42:05,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:42:05,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:05,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:05,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:05,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:42:05,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:05,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:05,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:05,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:05,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:05,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:05,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:05,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:05,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-28 16:42:05,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:05,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:05,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:05,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:42:05,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:05,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:05,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:05,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:05,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:05,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:42:05,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:05,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:05,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-28 16:42:05,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:05,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:05,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:05,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:42:05,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:05,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:05,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:05,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:05,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:05,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:42:05,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:05,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:05,455 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-28 16:42:05,455 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2010920830] [2020-10-28 16:42:05,455 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:42:05,456 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-28 16:42:05,456 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594472464] [2020-10-28 16:42:05,456 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 16:42:05,456 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:42:05,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 16:42:05,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-28 16:42:05,458 INFO L87 Difference]: Start difference. First operand 181 states and 206 transitions. Second operand 7 states. [2020-10-28 16:42:06,932 WARN L193 SmtUtils]: Spent 673.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-28 16:42:07,695 WARN L193 SmtUtils]: Spent 698.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-28 16:42:08,444 WARN L193 SmtUtils]: Spent 688.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-28 16:42:10,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:42:10,030 INFO L93 Difference]: Finished difference Result 380 states and 462 transitions. [2020-10-28 16:42:10,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 16:42:10,032 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 90 [2020-10-28 16:42:10,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:42:10,035 INFO L225 Difference]: With dead ends: 380 [2020-10-28 16:42:10,036 INFO L226 Difference]: Without dead ends: 223 [2020-10-28 16:42:10,037 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-10-28 16:42:10,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2020-10-28 16:42:10,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 185. [2020-10-28 16:42:10,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2020-10-28 16:42:10,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 210 transitions. [2020-10-28 16:42:10,101 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 210 transitions. Word has length 90 [2020-10-28 16:42:10,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:42:10,102 INFO L481 AbstractCegarLoop]: Abstraction has 185 states and 210 transitions. [2020-10-28 16:42:10,102 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 16:42:10,102 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 210 transitions. [2020-10-28 16:42:10,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-28 16:42:10,103 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:42:10,104 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-28 16:42:10,104 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 16:42:10,104 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 16:42:10,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:42:10,105 INFO L82 PathProgramCache]: Analyzing trace with hash -1241711951, now seen corresponding path program 1 times [2020-10-28 16:42:10,105 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:42:10,105 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1599490733] [2020-10-28 16:42:10,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:42:10,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:10,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:10,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:10,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:15,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:15,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-28 16:42:15,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 16:42:15,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-28 16:42:15,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:15,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:15,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-28 16:42:15,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:42:15,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-28 16:42:15,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:15,920 WARN L193 SmtUtils]: Spent 683.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:42:15,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:42:15,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:15,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:16,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:16,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:42:16,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:16,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-28 16:42:16,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:16,013 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:16,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:42:16,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:16,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 16:42:16,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:16,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:42:16,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:16,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:16,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:16,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:42:16,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:16,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 16:42:16,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:16,037 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:16,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:42:16,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:16,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:42:16,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:16,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:42:16,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:16,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:16,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:16,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:42:16,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:16,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:16,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:16,043 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:16,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:42:16,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:16,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:42:16,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:16,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:42:16,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:16,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:16,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:16,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:42:16,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:16,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:16,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:16,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:16,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:42:16,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:16,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:42:16,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:16,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:42:16,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:16,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:16,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:16,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:42:16,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:16,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:42:16,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:16,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:16,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:42:16,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:16,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:42:16,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:16,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-28 16:42:16,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:16,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:16,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:16,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:16,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-28 16:42:16,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 16:42:16,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-28 16:42:16,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:16,129 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:16,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:42:16,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:16,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-28 16:42:16,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:16,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 16:42:16,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:16,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:16,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:16,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 16:42:16,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:16,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:42:16,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:16,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:16,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:16,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:16,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:16,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:16,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 16:42:16,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:16,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:16,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:16,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 16:42:16,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:16,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:16,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:16,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:16,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:16,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:16,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:16,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:16,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-28 16:42:16,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:16,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:16,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:16,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-28 16:42:16,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:16,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:42:16,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:16,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:16,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:16,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:16,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:16,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:16,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 16:42:16,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:16,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:16,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:16,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 16:42:16,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:16,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:16,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:16,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:16,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:16,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:16,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:16,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:16,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 16:42:16,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:16,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:16,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:16,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:42:16,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:16,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 16:42:16,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:16,164 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:16,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:16,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:16,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:16,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:16,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:42:16,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:16,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:16,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:16,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:42:16,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:16,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 16:42:16,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:16,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:16,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:16,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:16,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:16,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:16,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-28 16:42:16,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:16,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:16,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:16,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:42:16,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:16,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:42:16,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:16,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:16,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 16:42:16,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:16,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:42:16,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:16,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-28 16:42:16,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:16,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:16,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:16,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:42:16,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:16,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:16,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:16,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:16,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:16,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:42:16,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:16,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:16,209 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 16:42:16,210 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1599490733] [2020-10-28 16:42:16,210 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:42:16,210 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-28 16:42:16,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925928810] [2020-10-28 16:42:16,211 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 16:42:16,211 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:42:16,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 16:42:16,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-28 16:42:16,212 INFO L87 Difference]: Start difference. First operand 185 states and 210 transitions. Second operand 8 states. [2020-10-28 16:42:17,070 WARN L193 SmtUtils]: Spent 664.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-28 16:42:19,042 WARN L193 SmtUtils]: Spent 687.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-28 16:42:19,878 WARN L193 SmtUtils]: Spent 640.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-28 16:42:21,114 WARN L193 SmtUtils]: Spent 667.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-28 16:42:21,830 WARN L193 SmtUtils]: Spent 685.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-28 16:42:22,649 WARN L193 SmtUtils]: Spent 695.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-28 16:42:24,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:42:24,264 INFO L93 Difference]: Finished difference Result 549 states and 675 transitions. [2020-10-28 16:42:24,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-28 16:42:24,265 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 90 [2020-10-28 16:42:24,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:42:24,269 INFO L225 Difference]: With dead ends: 549 [2020-10-28 16:42:24,270 INFO L226 Difference]: Without dead ends: 388 [2020-10-28 16:42:24,271 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-10-28 16:42:24,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2020-10-28 16:42:24,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 324. [2020-10-28 16:42:24,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 324 states. [2020-10-28 16:42:24,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 370 transitions. [2020-10-28 16:42:24,350 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 370 transitions. Word has length 90 [2020-10-28 16:42:24,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:42:24,350 INFO L481 AbstractCegarLoop]: Abstraction has 324 states and 370 transitions. [2020-10-28 16:42:24,351 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 16:42:24,351 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 370 transitions. [2020-10-28 16:42:24,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-28 16:42:24,352 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:42:24,353 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-28 16:42:24,353 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 16:42:24,353 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 16:42:24,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:42:24,354 INFO L82 PathProgramCache]: Analyzing trace with hash 551487725, now seen corresponding path program 1 times [2020-10-28 16:42:24,354 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:42:24,354 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1640313025] [2020-10-28 16:42:24,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:42:24,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:24,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:24,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:24,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:28,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:28,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 140 [2020-10-28 16:42:28,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 16:42:28,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4146 [2020-10-28 16:42:28,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:28,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:28,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-28 16:42:28,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:42:28,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-28 16:42:28,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:29,179 WARN L193 SmtUtils]: Spent 604.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:42:29,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:42:29,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:29,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:29,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:29,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:42:29,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:29,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-28 16:42:29,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:29,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:29,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:42:29,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:29,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 16:42:29,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:29,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:42:29,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:29,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:29,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:29,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:42:29,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:29,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:29,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:29,279 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:29,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:42:29,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:29,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:42:29,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:29,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:42:29,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:29,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:29,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:29,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:42:29,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:29,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:29,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:29,285 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:29,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:42:29,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:29,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:42:29,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:29,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:42:29,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:29,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:29,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:29,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:42:29,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:29,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:29,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:29,290 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:29,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:42:29,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:29,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:42:29,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:29,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:42:29,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:29,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:29,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:29,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:42:29,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:29,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:29,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:29,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:29,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:42:29,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:29,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:42:29,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:29,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-28 16:42:29,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:29,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:29,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:29,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:42:29,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:29,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:29,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:29,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:29,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:42:29,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:29,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:42:29,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:29,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-28 16:42:29,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:29,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:29,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:29,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-28 16:42:29,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:29,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 16:42:29,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:29,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:29,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:42:29,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-28 16:42:29,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-28 16:42:29,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:29,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 16:42:29,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:29,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:29,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:29,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 16:42:29,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:29,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 16:42:29,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:29,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:29,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:42:29,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:29,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 16:42:29,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:29,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 16:42:29,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:29,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:29,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:29,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 16:42:29,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:29,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:29,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:29,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:29,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:42:29,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:29,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-28 16:42:29,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:29,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-28 16:42:29,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:29,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:29,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:29,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-28 16:42:29,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:29,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 16:42:29,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:29,401 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:29,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:42:29,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:29,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-28 16:42:29,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:29,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 16:42:29,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:29,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:29,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:29,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 16:42:29,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:29,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 16:42:29,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:29,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:29,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:29,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:29,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:29,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:29,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 16:42:29,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:29,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:29,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:29,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:42:29,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:29,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 16:42:29,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:29,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:29,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:29,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:29,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:29,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:29,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:42:29,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:29,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:29,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:29,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:42:29,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:29,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 16:42:29,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:29,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:29,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:29,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:29,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:29,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:29,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-28 16:42:29,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:29,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:29,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:29,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:42:29,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:29,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:29,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:29,431 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:29,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:29,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:42:29,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:29,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:29,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-28 16:42:29,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:29,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:29,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:29,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:42:29,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:29,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:29,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:29,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:29,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:29,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:42:29,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:29,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:29,463 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-28 16:42:29,463 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1640313025] [2020-10-28 16:42:29,463 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:42:29,464 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-28 16:42:29,464 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282199508] [2020-10-28 16:42:29,464 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 16:42:29,464 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:42:29,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 16:42:29,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-28 16:42:29,470 INFO L87 Difference]: Start difference. First operand 324 states and 370 transitions. Second operand 8 states. [2020-10-28 16:42:30,539 WARN L193 SmtUtils]: Spent 719.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-28 16:42:31,813 WARN L193 SmtUtils]: Spent 704.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-28 16:42:35,443 WARN L193 SmtUtils]: Spent 707.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-28 16:42:37,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:42:37,603 INFO L93 Difference]: Finished difference Result 1153 states and 1523 transitions. [2020-10-28 16:42:37,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-28 16:42:37,604 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 94 [2020-10-28 16:42:37,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:42:37,610 INFO L225 Difference]: With dead ends: 1153 [2020-10-28 16:42:37,610 INFO L226 Difference]: Without dead ends: 853 [2020-10-28 16:42:37,613 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2020-10-28 16:42:37,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 853 states. [2020-10-28 16:42:37,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 853 to 730. [2020-10-28 16:42:37,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 730 states. [2020-10-28 16:42:37,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 730 states to 730 states and 878 transitions. [2020-10-28 16:42:37,809 INFO L78 Accepts]: Start accepts. Automaton has 730 states and 878 transitions. Word has length 94 [2020-10-28 16:42:37,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:42:37,809 INFO L481 AbstractCegarLoop]: Abstraction has 730 states and 878 transitions. [2020-10-28 16:42:37,810 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 16:42:37,810 INFO L276 IsEmpty]: Start isEmpty. Operand 730 states and 878 transitions. [2020-10-28 16:42:37,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-28 16:42:37,812 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:42:37,812 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-28 16:42:37,812 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-28 16:42:37,813 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 16:42:37,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:42:37,813 INFO L82 PathProgramCache]: Analyzing trace with hash 472518599, now seen corresponding path program 1 times [2020-10-28 16:42:37,814 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:42:37,814 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [825214775] [2020-10-28 16:42:37,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:42:37,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:37,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:38,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:38,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:38,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-10-28 16:42:38,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 16:42:38,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1046 [2020-10-28 16:42:38,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:38,889 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:38,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 16:42:38,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 57 [2020-10-28 16:42:38,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-28 16:42:38,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:39,565 WARN L193 SmtUtils]: Spent 639.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:42:39,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:42:39,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:39,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:39,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:39,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:42:39,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:39,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-28 16:42:39,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:39,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:39,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:39,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:39,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:39,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:39,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:42:39,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:39,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:39,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:39,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:42:39,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:39,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 16:42:39,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:39,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:39,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:39,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:39,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:39,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:39,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:42:39,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:39,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:39,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:39,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:42:39,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:39,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 16:42:39,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:39,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:39,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:39,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:39,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:39,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:39,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:42:39,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:39,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:39,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:39,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:42:39,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:39,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 16:42:39,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:39,616 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:39,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:39,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:39,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:39,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:39,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:42:39,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:39,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:39,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:39,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:42:39,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:39,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 16:42:39,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:39,618 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:39,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:39,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:39,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:39,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:39,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-28 16:42:39,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:39,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:39,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:39,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:42:39,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:39,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:39,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:39,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:39,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:39,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:39,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:39,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:39,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-28 16:42:39,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:39,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:39,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:39,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:42:39,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:39,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:39,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:39,657 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:39,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:42:39,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:39,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 16:42:39,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:39,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-28 16:42:39,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:39,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:39,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:39,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-28 16:42:39,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:39,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-28 16:42:39,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:39,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:39,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 16:42:39,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-28 16:42:39,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-28 16:42:39,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:39,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 16:42:39,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:39,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:39,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:39,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 16:42:39,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:39,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:39,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:39,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:39,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:39,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:39,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:39,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:39,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 16:42:39,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:39,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:39,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:39,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 16:42:39,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:39,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 16:42:39,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:39,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:39,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:39,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:39,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:39,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:39,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-28 16:42:39,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:39,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:39,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:39,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-28 16:42:39,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:39,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 16:42:39,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:39,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:39,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 16:42:39,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:39,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-28 16:42:39,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:39,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 16:42:39,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:39,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:39,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:39,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 16:42:39,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:39,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-28 16:42:39,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:39,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:39,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 16:42:39,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:39,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 16:42:39,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:39,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 16:42:39,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:39,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:39,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:39,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:42:39,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:39,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:39,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:39,900 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:39,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 16:42:39,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:39,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:42:39,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:39,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:42:39,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:39,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:39,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:39,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:42:39,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:39,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:39,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:39,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:39,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:42:39,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:39,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:42:39,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:39,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-28 16:42:39,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:39,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:39,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:39,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:42:39,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:39,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:39,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:39,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:39,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:39,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:42:39,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:39,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:39,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-28 16:42:39,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:39,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:39,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:39,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:42:39,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:39,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:39,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:39,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:39,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:39,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:42:39,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:39,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:39,969 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 16:42:39,969 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [825214775] [2020-10-28 16:42:39,969 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 16:42:39,970 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-28 16:42:39,970 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105922635] [2020-10-28 16:42:39,970 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-28 16:42:39,971 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:42:39,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-28 16:42:39,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2020-10-28 16:42:39,971 INFO L87 Difference]: Start difference. First operand 730 states and 878 transitions. Second operand 13 states. [2020-10-28 16:42:40,988 WARN L193 SmtUtils]: Spent 709.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-28 16:42:42,605 WARN L193 SmtUtils]: Spent 693.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-28 16:42:44,491 WARN L193 SmtUtils]: Spent 726.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-28 16:42:45,416 WARN L193 SmtUtils]: Spent 721.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-28 16:42:46,198 WARN L193 SmtUtils]: Spent 697.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-28 16:42:46,915 WARN L193 SmtUtils]: Spent 680.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-28 16:42:47,733 WARN L193 SmtUtils]: Spent 712.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-28 16:42:48,560 WARN L193 SmtUtils]: Spent 666.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-28 16:42:49,303 WARN L193 SmtUtils]: Spent 704.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-28 16:42:50,109 WARN L193 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-28 16:42:51,072 WARN L193 SmtUtils]: Spent 732.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-28 16:42:51,990 WARN L193 SmtUtils]: Spent 723.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-28 16:42:53,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:42:53,893 INFO L93 Difference]: Finished difference Result 1519 states and 1898 transitions. [2020-10-28 16:42:53,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-28 16:42:53,894 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 98 [2020-10-28 16:42:53,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:42:53,902 INFO L225 Difference]: With dead ends: 1519 [2020-10-28 16:42:53,902 INFO L226 Difference]: Without dead ends: 813 [2020-10-28 16:42:53,905 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 9.9s TimeCoverageRelationStatistics Valid=230, Invalid=892, Unknown=0, NotChecked=0, Total=1122 [2020-10-28 16:42:53,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 813 states. [2020-10-28 16:42:54,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 813 to 698. [2020-10-28 16:42:54,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 698 states. [2020-10-28 16:42:54,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 698 states to 698 states and 823 transitions. [2020-10-28 16:42:54,114 INFO L78 Accepts]: Start accepts. Automaton has 698 states and 823 transitions. Word has length 98 [2020-10-28 16:42:54,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:42:54,116 INFO L481 AbstractCegarLoop]: Abstraction has 698 states and 823 transitions. [2020-10-28 16:42:54,116 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-28 16:42:54,116 INFO L276 IsEmpty]: Start isEmpty. Operand 698 states and 823 transitions. [2020-10-28 16:42:54,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-10-28 16:42:54,120 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:42:54,121 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 16:42:54,121 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-28 16:42:54,121 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 16:42:54,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:42:54,122 INFO L82 PathProgramCache]: Analyzing trace with hash 1210510389, now seen corresponding path program 1 times [2020-10-28 16:42:54,122 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:42:54,122 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1891279347] [2020-10-28 16:42:54,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:42:54,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-28 16:42:54,170 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-28 16:42:54,170 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-28 16:42:54,178 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-28 16:42:54,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 04:42:54 BoogieIcfgContainer [2020-10-28 16:42:54,232 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 16:42:54,236 INFO L168 Benchmark]: Toolchain (without parser) took 120023.90 ms. Allocated memory was 154.1 MB in the beginning and 773.8 MB in the end (delta: 619.7 MB). Free memory was 128.6 MB in the beginning and 643.9 MB in the end (delta: -515.3 MB). Peak memory consumption was 105.3 MB. Max. memory is 8.0 GB. [2020-10-28 16:42:54,240 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 154.1 MB. Free memory is still 127.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 16:42:54,242 INFO L168 Benchmark]: CACSL2BoogieTranslator took 737.87 ms. Allocated memory is still 154.1 MB. Free memory was 128.0 MB in the beginning and 132.1 MB in the end (delta: -4.2 MB). Peak memory consumption was 21.5 MB. Max. memory is 8.0 GB. [2020-10-28 16:42:54,243 INFO L168 Benchmark]: Boogie Preprocessor took 148.97 ms. Allocated memory is still 154.1 MB. Free memory was 132.1 MB in the beginning and 128.5 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-28 16:42:54,247 INFO L168 Benchmark]: RCFGBuilder took 1749.53 ms. Allocated memory was 154.1 MB in the beginning and 207.6 MB in the end (delta: 53.5 MB). Free memory was 128.5 MB in the beginning and 179.4 MB in the end (delta: -50.9 MB). Peak memory consumption was 83.3 MB. Max. memory is 8.0 GB. [2020-10-28 16:42:54,249 INFO L168 Benchmark]: TraceAbstraction took 117373.20 ms. Allocated memory was 207.6 MB in the beginning and 773.8 MB in the end (delta: 566.2 MB). Free memory was 178.9 MB in the beginning and 643.9 MB in the end (delta: -465.0 MB). Peak memory consumption was 101.2 MB. Max. memory is 8.0 GB. [2020-10-28 16:42:54,256 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 154.1 MB. Free memory is still 127.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 737.87 ms. Allocated memory is still 154.1 MB. Free memory was 128.0 MB in the beginning and 132.1 MB in the end (delta: -4.2 MB). Peak memory consumption was 21.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 148.97 ms. Allocated memory is still 154.1 MB. Free memory was 132.1 MB in the beginning and 128.5 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1749.53 ms. Allocated memory was 154.1 MB in the beginning and 207.6 MB in the end (delta: 53.5 MB). Free memory was 128.5 MB in the beginning and 179.4 MB in the end (delta: -50.9 MB). Peak memory consumption was 83.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 117373.20 ms. Allocated memory was 207.6 MB in the beginning and 773.8 MB in the end (delta: 566.2 MB). Free memory was 178.9 MB in the beginning and 643.9 MB in the end (delta: -465.0 MB). Peak memory consumption was 101.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L482] int waterLevel = 1; [L483] int methaneLevelCritical = 0; [L580] int pumpRunning = 0; [L581] int systemActive = 1; [L751] int cleanupTimeShifts = 4; [L827] int retValue_acc ; [L828] int tmp ; [L832] FCALL select_helpers() [L833] FCALL select_features() [L834] CALL, EXPR valid_product() [L876] int retValue_acc ; [L879] retValue_acc = 1 [L880] return (retValue_acc); [L834] RET, EXPR valid_product() [L834] tmp = valid_product() [L836] COND TRUE \read(tmp) [L838] FCALL setup() [L839] CALL runTest() [L818] CALL test() [L413] int splverifierCounter ; [L414] int tmp ; [L415] int tmp___0 ; [L416] int tmp___1 ; [L417] int tmp___2 ; [L420] splverifierCounter = 0 [L422] COND TRUE 1 [L424] COND TRUE splverifierCounter < 4 [L430] tmp = __VERIFIER_nondet_int() [L432] COND TRUE \read(tmp) [L434] CALL waterRise() [L500] COND TRUE waterLevel < 2 [L501] waterLevel = waterLevel + 1 [L434] RET waterRise() [L440] tmp___0 = __VERIFIER_nondet_int() [L442] COND FALSE !(\read(tmp___0)) [L450] tmp___2 = __VERIFIER_nondet_int() [L452] COND TRUE \read(tmp___2) [L465] CALL timeShift() [L588] COND FALSE !(\read(pumpRunning)) [L595] COND TRUE \read(systemActive) [L597] CALL processEnvironment() [L617] int tmp ; [L620] COND TRUE ! pumpRunning [L622] CALL, EXPR isHighWaterLevel() [L732] int retValue_acc ; [L733] int tmp ; [L734] int tmp___0 ; [L738] CALL, EXPR isHighWaterSensorDry() [L562] int retValue_acc ; [L565] COND FALSE !(waterLevel < 2) [L569] retValue_acc = 0 [L570] return (retValue_acc); [L738] RET, EXPR isHighWaterSensorDry() [L738] tmp = isHighWaterSensorDry() [L740] COND FALSE !(\read(tmp)) [L743] tmp___0 = 1 [L745] retValue_acc = tmp___0 [L746] return (retValue_acc); [L622] RET, EXPR isHighWaterLevel() [L622] tmp = isHighWaterLevel() [L624] COND TRUE \read(tmp) [L626] CALL activatePump() [L651] int tmp ; [L655] CALL, EXPR isMethaneAlarm() [L676] int retValue_acc ; [L680] CALL, EXPR isMethaneLevelCritical() [L521] int retValue_acc ; [L524] retValue_acc = methaneLevelCritical [L525] return (retValue_acc); [L680] RET, EXPR isMethaneLevelCritical() [L680] retValue_acc = isMethaneLevelCritical() [L682] return (retValue_acc); [L655] RET, EXPR isMethaneAlarm() [L655] tmp = isMethaneAlarm() [L657] COND FALSE !(\read(tmp)) [L661] CALL activatePump__wrappee__highWaterSensor() [L645] pumpRunning = 1 [L661] RET activatePump__wrappee__highWaterSensor() [L626] RET activatePump() [L597] RET processEnvironment() [L603] CALL __utac_acc__Specification1_spec__1() [L895] int tmp ; [L896] int tmp___0 ; [L900] CALL, EXPR isMethaneLevelCritical() [L521] int retValue_acc ; [L524] retValue_acc = methaneLevelCritical [L525] return (retValue_acc); [L900] RET, EXPR isMethaneLevelCritical() [L900] tmp = isMethaneLevelCritical() [L902] COND FALSE !(\read(tmp)) [L603] RET __utac_acc__Specification1_spec__1() [L465] RET timeShift() [L422] COND TRUE 1 [L424] COND TRUE splverifierCounter < 4 [L430] tmp = __VERIFIER_nondet_int() [L432] COND FALSE !(\read(tmp)) [L440] tmp___0 = __VERIFIER_nondet_int() [L442] COND TRUE \read(tmp___0) [L444] CALL changeMethaneLevel() [L512] COND FALSE !(\read(methaneLevelCritical)) [L515] methaneLevelCritical = 1 [L444] RET changeMethaneLevel() [L450] tmp___2 = __VERIFIER_nondet_int() [L452] COND TRUE \read(tmp___2) [L465] CALL timeShift() [L588] COND TRUE \read(pumpRunning) [L590] CALL lowerWaterLevel() [L488] COND TRUE waterLevel > 0 [L489] waterLevel = waterLevel - 1 [L590] RET lowerWaterLevel() [L595] COND TRUE \read(systemActive) [L597] CALL processEnvironment() [L617] int tmp ; [L620] COND FALSE !(! pumpRunning) [L635] FCALL processEnvironment__wrappee__base() [L597] RET processEnvironment() [L603] CALL __utac_acc__Specification1_spec__1() [L895] int tmp ; [L896] int tmp___0 ; [L900] CALL, EXPR isMethaneLevelCritical() [L521] int retValue_acc ; [L524] retValue_acc = methaneLevelCritical [L525] return (retValue_acc); [L900] RET, EXPR isMethaneLevelCritical() [L900] tmp = isMethaneLevelCritical() [L902] COND TRUE \read(tmp) [L904] CALL, EXPR isPumpRunning() [L687] int retValue_acc ; [L690] retValue_acc = pumpRunning [L691] return (retValue_acc); [L904] RET, EXPR isPumpRunning() [L904] tmp___0 = isPumpRunning() [L906] COND TRUE \read(tmp___0) [L908] CALL __automaton_fail() [L889] CALL reach_error() [L3] __assert_fail("0", "minepump_spec1_product41.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 234 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 117.2s, OverallIterations: 11, TraceHistogramMax: 3, AutomataDifference: 61.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1205 SDtfs, 2499 SDslu, 1114 SDs, 0 SdLazy, 5321 SolverSat, 1606 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 28.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 377 GetRequests, 266 SyntacticMatches, 0 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 356 ImplicationChecksByTransitivity, 35.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=730occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 10 MinimizatonAttempts, 573 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 53.9s InterpolantComputationTime, 894 NumberOfCodeBlocks, 894 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 751 ConstructedInterpolants, 0 QuantifiedInterpolants, 241313 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 13/15 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...