/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=SHALLOWEST --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_product49.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 03:23:09,565 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 03:23:09,568 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 03:23:09,609 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 03:23:09,610 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 03:23:09,612 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 03:23:09,613 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 03:23:09,616 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 03:23:09,618 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 03:23:09,619 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 03:23:09,620 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 03:23:09,622 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 03:23:09,622 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 03:23:09,624 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 03:23:09,625 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 03:23:09,626 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 03:23:09,627 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 03:23:09,628 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 03:23:09,630 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 03:23:09,640 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 03:23:09,642 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 03:23:09,643 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 03:23:09,645 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 03:23:09,646 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 03:23:09,649 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 03:23:09,649 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 03:23:09,650 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 03:23:09,651 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 03:23:09,651 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 03:23:09,652 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 03:23:09,652 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 03:23:09,653 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 03:23:09,654 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 03:23:09,655 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 03:23:09,656 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 03:23:09,657 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 03:23:09,657 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 03:23:09,658 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 03:23:09,658 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 03:23:09,659 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 03:23:09,660 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 03:23:09,661 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 [2020-10-27 03:23:09,689 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 03:23:09,689 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 03:23:09,690 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 03:23:09,691 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 03:23:09,691 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 03:23:09,691 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 03:23:09,691 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 03:23:09,692 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 03:23:09,692 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 03:23:09,692 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 03:23:09,695 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 03:23:09,695 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 03:23:09,696 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 03:23:09,696 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 03:23:09,696 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 03:23:09,696 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 03:23:09,696 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 03:23:09,697 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 03:23:09,697 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 03:23:09,697 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 03:23:09,697 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 03:23:09,697 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 03:23:09,698 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 03:23:09,698 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 03:23:09,698 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 03:23:09,698 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 03:23:09,698 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 03:23:09,699 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 03:23:09,699 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 03:23:09,699 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 03:23:10,118 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 03:23:10,166 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 03:23:10,171 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 03:23:10,172 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 03:23:10,173 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 03:23:10,175 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product49.cil.c [2020-10-27 03:23:10,270 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f933bb5ee/2ad222ce6d9d406c91affdccc31a7d7c/FLAG4ee3854e5 [2020-10-27 03:23:10,986 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 03:23:10,989 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product49.cil.c [2020-10-27 03:23:11,011 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f933bb5ee/2ad222ce6d9d406c91affdccc31a7d7c/FLAG4ee3854e5 [2020-10-27 03:23:11,302 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f933bb5ee/2ad222ce6d9d406c91affdccc31a7d7c [2020-10-27 03:23:11,307 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 03:23:11,317 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 03:23:11,321 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 03:23:11,321 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 03:23:11,326 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 03:23:11,327 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:23:11" (1/1) ... [2020-10-27 03:23:11,333 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@834b16b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:23:11, skipping insertion in model container [2020-10-27 03:23:11,334 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:23:11" (1/1) ... [2020-10-27 03:23:11,344 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 03:23:11,421 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 03:23:11,915 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 03:23:11,927 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 03:23:12,018 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 03:23:12,060 INFO L208 MainTranslator]: Completed translation [2020-10-27 03:23:12,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:23:12 WrapperNode [2020-10-27 03:23:12,061 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 03:23:12,062 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 03:23:12,063 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 03:23:12,063 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 03:23:12,076 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:23:12" (1/1) ... [2020-10-27 03:23:12,077 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:23:12" (1/1) ... [2020-10-27 03:23:12,095 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:23:12" (1/1) ... [2020-10-27 03:23:12,095 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:23:12" (1/1) ... [2020-10-27 03:23:12,126 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:23:12" (1/1) ... [2020-10-27 03:23:12,135 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:23:12" (1/1) ... [2020-10-27 03:23:12,141 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:23:12" (1/1) ... [2020-10-27 03:23:12,149 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 03:23:12,150 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 03:23:12,150 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 03:23:12,150 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 03:23:12,151 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:23:12" (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 [2020-10-27 03:23:12,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 03:23:12,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 03:23:12,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-27 03:23:12,280 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 03:23:12,281 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-10-27 03:23:12,281 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-27 03:23:12,282 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-27 03:23:12,282 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-27 03:23:12,283 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-27 03:23:12,283 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 03:23:12,284 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-27 03:23:12,284 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-27 03:23:12,284 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-27 03:23:12,284 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-27 03:23:12,285 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-27 03:23:12,285 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-27 03:23:12,286 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-27 03:23:12,286 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-27 03:23:12,286 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-10-27 03:23:12,286 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-27 03:23:12,286 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-27 03:23:12,286 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-27 03:23:12,286 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-27 03:23:12,287 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-27 03:23:12,287 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-27 03:23:12,287 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-27 03:23:12,287 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-27 03:23:12,287 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-27 03:23:12,287 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-27 03:23:12,288 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-27 03:23:12,288 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-27 03:23:12,288 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-27 03:23:12,288 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-27 03:23:12,288 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-27 03:23:12,288 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-27 03:23:12,288 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-27 03:23:12,289 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-27 03:23:12,289 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-27 03:23:12,289 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-27 03:23:12,289 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-27 03:23:12,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-27 03:23:12,289 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 03:23:12,289 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 03:23:12,290 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 03:23:12,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 03:23:12,290 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 03:23:12,290 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-27 03:23:12,290 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-27 03:23:12,290 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-27 03:23:12,291 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-27 03:23:12,291 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-10-27 03:23:12,291 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-27 03:23:12,291 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-27 03:23:12,292 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-27 03:23:12,292 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-27 03:23:12,292 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-27 03:23:12,292 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-27 03:23:12,293 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-27 03:23:12,293 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-27 03:23:12,293 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-27 03:23:12,293 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-27 03:23:12,293 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-27 03:23:12,294 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-27 03:23:12,294 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 03:23:12,294 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-27 03:23:12,294 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-27 03:23:12,294 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-27 03:23:12,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-27 03:23:12,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-27 03:23:12,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 03:23:12,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-27 03:23:12,295 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-27 03:23:12,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 03:23:12,297 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-27 03:23:12,297 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-27 03:23:12,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 03:23:12,298 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-27 03:23:12,298 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-27 03:23:12,298 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-27 03:23:12,298 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-27 03:23:12,298 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-27 03:23:12,298 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-27 03:23:12,299 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-27 03:23:12,299 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-27 03:23:12,300 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-27 03:23:12,300 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-27 03:23:12,300 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-27 03:23:12,300 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-27 03:23:12,300 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-10-27 03:23:12,300 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-27 03:23:12,300 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-27 03:23:12,301 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-27 03:23:12,301 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-27 03:23:12,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 03:23:12,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 03:23:12,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 03:23:13,680 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 03:23:13,680 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-27 03:23:13,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:23:13 BoogieIcfgContainer [2020-10-27 03:23:13,685 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 03:23:13,690 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 03:23:13,690 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 03:23:13,693 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 03:23:13,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 03:23:11" (1/3) ... [2020-10-27 03:23:13,695 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4835e0c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:23:13, skipping insertion in model container [2020-10-27 03:23:13,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:23:12" (2/3) ... [2020-10-27 03:23:13,696 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4835e0c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:23:13, skipping insertion in model container [2020-10-27 03:23:13,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:23:13" (3/3) ... [2020-10-27 03:23:13,698 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product49.cil.c [2020-10-27 03:23:13,710 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 03:23:13,715 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-27 03:23:13,730 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-27 03:23:13,775 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 03:23:13,776 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 03:23:13,776 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 03:23:13,776 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 03:23:13,776 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 03:23:13,776 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 03:23:13,776 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 03:23:13,777 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 03:23:13,798 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states. [2020-10-27 03:23:13,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-27 03:23:13,808 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:23:13,809 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] [2020-10-27 03:23:13,809 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]=== [2020-10-27 03:23:13,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:23:13,816 INFO L82 PathProgramCache]: Analyzing trace with hash 1882795293, now seen corresponding path program 1 times [2020-10-27 03:23:13,826 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:23:13,827 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [856099076] [2020-10-27 03:23:13,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:23:14,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:14,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:14,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:14,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:16,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:16,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:19,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:19,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-27 03:23:19,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 03:23:19,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-27 03:23:19,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:19,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 03:23:19,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:23:19,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-27 03:23:19,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 11 [2020-10-27 03:23:19,590 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 03:23:19,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:23:19,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:19,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:19,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:19,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:23:19,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:19,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-10-27 03:23:19,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:19,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:23:19,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:19,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 03:23:19,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:19,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 03:23:19,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:19,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:19,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:19,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:23:19,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:19,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 03:23:19,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:19,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:23:19,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:19,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:23:19,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 03:23:19,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 03:23:19,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:19,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:19,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:19,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:23:19,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:19,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 03:23:19,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:19,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:23:19,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:19,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:23:19,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:19,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 03:23:19,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:19,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:19,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:19,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:23:19,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:19,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 03:23:19,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:19,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:23:19,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:19,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:23:19,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:19,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 03:23:19,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:19,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:19,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:19,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:23:19,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:19,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 03:23:19,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:19,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:23:19,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:19,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:23:19,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:19,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-27 03:23:19,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:19,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:19,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:19,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:23:19,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:19,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 03:23:19,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:19,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:23:19,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:19,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:23:19,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:19,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-27 03:23:19,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:19,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:19,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:19,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:23:19,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:19,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 03:23:19,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:19,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 03:23:19,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:19,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:23:19,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:19,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 03:23:19,947 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [856099076] [2020-10-27 03:23:19,950 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 03:23:19,950 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-27 03:23:19,951 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814802262] [2020-10-27 03:23:19,957 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 03:23:19,959 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:23:19,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 03:23:19,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-27 03:23:19,977 INFO L87 Difference]: Start difference. First operand 178 states. Second operand 7 states. [2020-10-27 03:23:20,614 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:23:21,822 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 03:23:22,283 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-27 03:23:22,736 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-27 03:23:23,656 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:23:24,167 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-27 03:23:25,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:23:25,760 INFO L93 Difference]: Finished difference Result 390 states and 537 transitions. [2020-10-27 03:23:25,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-27 03:23:25,763 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 47 [2020-10-27 03:23:25,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:23:25,778 INFO L225 Difference]: With dead ends: 390 [2020-10-27 03:23:25,778 INFO L226 Difference]: Without dead ends: 236 [2020-10-27 03:23:25,784 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2020-10-27 03:23:25,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2020-10-27 03:23:25,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 203. [2020-10-27 03:23:25,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2020-10-27 03:23:25,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 255 transitions. [2020-10-27 03:23:25,918 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 255 transitions. Word has length 47 [2020-10-27 03:23:25,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:23:25,918 INFO L481 AbstractCegarLoop]: Abstraction has 203 states and 255 transitions. [2020-10-27 03:23:25,918 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 03:23:25,919 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 255 transitions. [2020-10-27 03:23:25,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-27 03:23:25,923 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:23:25,923 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 03:23:25,924 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 03:23:25,924 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]=== [2020-10-27 03:23:25,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:23:25,925 INFO L82 PathProgramCache]: Analyzing trace with hash 219985721, now seen corresponding path program 1 times [2020-10-27 03:23:25,925 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:23:25,925 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1218850467] [2020-10-27 03:23:25,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:23:25,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:25,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:26,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:26,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:30,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:30,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-27 03:23:30,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 03:23:30,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-10-27 03:23:30,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:30,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 03:23:30,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:23:30,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-27 03:23:30,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:31,362 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 03:23:31,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:23:31,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:31,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:31,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:31,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:23:31,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:31,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-27 03:23:31,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:31,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:23:31,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:31,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 03:23:31,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:31,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 03:23:31,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:31,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:31,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:31,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:23:31,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:31,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:23:31,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:31,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:23:31,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:31,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:23:31,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:31,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 03:23:31,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:31,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:31,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:31,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:23:31,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:31,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:23:31,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:31,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:23:31,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:31,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:23:31,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:31,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 03:23:31,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:31,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:31,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:31,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:23:31,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:31,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 03:23:31,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:31,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:23:31,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:31,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:23:31,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:31,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 03:23:31,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:31,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:31,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:31,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:23:31,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:31,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:23:31,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:31,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:23:31,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:31,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:23:31,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:31,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-27 03:23:31,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:31,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:31,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:31,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:31,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-27 03:23:31,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:23:31,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-27 03:23:31,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:31,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:23:31,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:31,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-27 03:23:31,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:31,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 03:23:31,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:31,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:31,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:31,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:31,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 03:23:31,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:23:31,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-27 03:23:31,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:31,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:23:31,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:31,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:23:31,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:31,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 03:23:31,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:31,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:31,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:31,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 03:23:31,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:31,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 03:23:31,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:31,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:23:31,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:31,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:23:31,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:31,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 03:23:31,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:31,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:31,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:31,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 03:23:31,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:31,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:23:31,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:31,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:23:31,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:31,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:23:31,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:31,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 03:23:31,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:31,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:31,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:31,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:23:31,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:31,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:23:31,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:31,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:23:31,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:31,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:23:31,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:31,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-27 03:23:31,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:31,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:31,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:31,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:23:31,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:31,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 03:23:31,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:31,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 03:23:31,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:31,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:23:31,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:31,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-27 03:23:31,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:31,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:31,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:31,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:23:31,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:31,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:23:31,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:31,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:23:31,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:23:31,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:23:31,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:31,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 03:23:31,663 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1218850467] [2020-10-27 03:23:31,664 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 03:23:31,664 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-27 03:23:31,664 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440509381] [2020-10-27 03:23:31,666 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 03:23:31,667 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:23:31,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 03:23:31,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-27 03:23:31,668 INFO L87 Difference]: Start difference. First operand 203 states and 255 transitions. Second operand 8 states. [2020-10-27 03:23:32,330 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:23:33,296 WARN L193 SmtUtils]: Spent 402.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 03:23:33,755 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 03:23:34,162 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 03:23:34,683 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:23:35,228 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 03:23:37,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:23:37,584 INFO L93 Difference]: Finished difference Result 656 states and 937 transitions. [2020-10-27 03:23:37,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-27 03:23:37,585 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 76 [2020-10-27 03:23:37,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:23:37,594 INFO L225 Difference]: With dead ends: 656 [2020-10-27 03:23:37,594 INFO L226 Difference]: Without dead ends: 433 [2020-10-27 03:23:37,599 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-10-27 03:23:37,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2020-10-27 03:23:37,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 348. [2020-10-27 03:23:37,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2020-10-27 03:23:37,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 436 transitions. [2020-10-27 03:23:37,764 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 436 transitions. Word has length 76 [2020-10-27 03:23:37,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:23:37,765 INFO L481 AbstractCegarLoop]: Abstraction has 348 states and 436 transitions. [2020-10-27 03:23:37,765 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 03:23:37,765 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 436 transitions. [2020-10-27 03:23:37,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-27 03:23:37,779 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:23:37,780 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 03:23:37,780 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 03:23:37,780 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]=== [2020-10-27 03:23:37,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:23:37,781 INFO L82 PathProgramCache]: Analyzing trace with hash -2028475475, now seen corresponding path program 1 times [2020-10-27 03:23:37,785 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:23:37,786 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [534222096] [2020-10-27 03:23:37,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:23:37,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:37,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:38,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:38,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-27 03:23:38,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:38,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 334 [2020-10-27 03:23:38,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:38,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 03:23:38,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-10-27 03:23:38,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 03:23:38,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:38,520 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 03:23:38,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:23:38,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:38,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:38,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:38,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:23:38,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:38,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-27 03:23:38,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:38,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:23:38,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:38,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:23:38,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:38,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 03:23:38,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:38,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:38,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:38,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:23:38,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:38,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:23:38,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:38,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:23:38,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:38,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:23:38,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:38,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 03:23:38,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:38,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:38,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:38,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:23:38,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:38,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 03:23:38,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:38,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:23:38,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:38,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:23:38,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:38,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 03:23:38,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:38,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:38,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:38,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:23:38,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:38,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:23:38,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:38,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:23:38,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:38,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:23:38,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:38,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 03:23:38,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:38,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:38,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:38,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:23:38,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:38,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 03:23:38,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:38,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:23:38,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:38,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:23:38,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:38,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-27 03:23:38,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:38,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:38,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:38,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:23:38,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:38,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:23:38,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:38,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:23:38,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:38,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:23:38,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:38,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-27 03:23:38,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:38,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:38,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:38,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-27 03:23:38,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:38,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 03:23:38,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:38,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 03:23:38,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-27 03:23:38,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 03:23:38,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:38,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 03:23:38,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:38,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:38,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:38,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 03:23:38,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:38,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 03:23:38,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:38,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 03:23:38,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-27 03:23:38,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 03:23:38,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:38,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 03:23:38,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:38,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:38,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:38,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 03:23:38,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:38,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 03:23:38,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:38,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 03:23:38,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:38,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 03:23:38,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:38,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 03:23:38,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:38,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:38,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:38,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 03:23:38,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:38,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:23:38,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:38,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:23:38,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:38,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:23:38,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:38,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 03:23:38,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:38,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:38,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:38,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:23:38,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:38,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:23:38,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:38,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:23:38,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:23:38,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:23:38,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:38,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-27 03:23:38,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:38,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:38,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:38,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:23:38,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:38,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:23:38,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:38,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:23:38,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:23:38,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:23:38,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:38,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-27 03:23:38,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:38,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:38,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:38,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:23:38,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:38,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 03:23:38,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:38,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:23:38,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:23:38,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:23:38,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:38,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 03:23:38,865 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [534222096] [2020-10-27 03:23:38,865 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 03:23:38,865 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-27 03:23:38,865 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994780659] [2020-10-27 03:23:38,866 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 03:23:38,866 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:23:38,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 03:23:38,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-27 03:23:38,868 INFO L87 Difference]: Start difference. First operand 348 states and 436 transitions. Second operand 9 states. [2020-10-27 03:23:40,329 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 03:23:40,777 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-27 03:23:41,239 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 03:23:41,645 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 03:23:43,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:23:43,069 INFO L93 Difference]: Finished difference Result 799 states and 1089 transitions. [2020-10-27 03:23:43,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-27 03:23:43,070 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 84 [2020-10-27 03:23:43,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:23:43,082 INFO L225 Difference]: With dead ends: 799 [2020-10-27 03:23:43,082 INFO L226 Difference]: Without dead ends: 475 [2020-10-27 03:23:43,084 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-10-27 03:23:43,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2020-10-27 03:23:43,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 358. [2020-10-27 03:23:43,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 358 states. [2020-10-27 03:23:43,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 446 transitions. [2020-10-27 03:23:43,223 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 446 transitions. Word has length 84 [2020-10-27 03:23:43,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:23:43,224 INFO L481 AbstractCegarLoop]: Abstraction has 358 states and 446 transitions. [2020-10-27 03:23:43,224 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-27 03:23:43,224 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 446 transitions. [2020-10-27 03:23:43,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-27 03:23:43,226 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:23:43,227 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-27 03:23:43,227 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 03:23:43,227 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]=== [2020-10-27 03:23:43,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:23:43,228 INFO L82 PathProgramCache]: Analyzing trace with hash 1893575736, now seen corresponding path program 1 times [2020-10-27 03:23:43,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:23:43,229 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [239892832] [2020-10-27 03:23:43,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:23:43,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:43,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:43,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:43,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:43,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:43,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:43,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:44,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:48,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:48,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-27 03:23:48,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-27 03:23:48,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-27 03:23:48,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:48,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:23:48,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:23:48,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-27 03:23:48,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:48,645 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 03:23:48,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:23:48,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:48,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:48,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:48,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:23:48,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:48,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-27 03:23:48,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:48,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:23:48,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:48,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 03:23:48,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:48,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 03:23:48,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:48,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:48,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:48,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:23:48,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:48,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:23:48,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:48,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:23:48,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:48,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:23:48,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:48,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 03:23:48,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:48,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:48,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:48,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:23:48,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:48,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:23:48,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:48,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:23:48,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:48,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:23:48,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:48,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 03:23:48,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:48,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:48,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:48,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:23:48,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:48,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:23:48,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:48,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:23:48,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:48,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:23:48,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:48,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 03:23:48,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:48,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:48,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:48,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:23:48,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:48,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:23:48,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:48,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:23:48,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:48,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:23:48,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:48,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-27 03:23:48,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:48,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:48,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:48,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:23:48,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:48,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:23:48,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:48,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:23:48,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:48,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:23:48,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:48,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-27 03:23:48,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:48,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:48,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:48,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 03:23:48,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:48,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 03:23:48,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:48,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:23:48,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 03:23:48,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-27 03:23:48,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:48,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 03:23:48,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:48,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:48,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:48,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 03:23:48,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:48,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 03:23:48,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:48,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:23:48,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:48,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 03:23:48,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:48,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 03:23:48,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:48,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:48,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:48,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:23:48,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:48,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:23:48,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:48,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:23:48,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:48,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:23:48,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:48,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-27 03:23:48,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:48,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:48,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:48,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:48,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-27 03:23:48,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:23:48,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-27 03:23:48,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:48,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 03:23:48,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-27 03:23:48,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:23:48,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:48,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 03:23:48,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:48,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:48,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:48,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 03:23:48,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:48,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 03:23:48,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:48,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 03:23:48,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 03:23:48,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:23:48,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:48,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 03:23:48,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:48,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:48,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:48,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 03:23:48,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:48,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 03:23:48,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:48,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 03:23:48,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 03:23:48,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:23:48,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:48,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 03:23:48,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:48,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:48,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:48,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 03:23:48,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:48,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 03:23:48,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:48,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 03:23:48,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:48,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:23:48,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:48,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 03:23:48,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:48,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:48,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:48,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:23:48,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:48,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:23:48,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:48,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:23:48,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:23:48,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:23:48,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:48,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-27 03:23:48,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:48,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:48,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:48,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:23:48,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:48,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:23:48,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:48,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:23:48,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:23:48,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:23:48,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:48,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 03:23:48,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:48,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:48,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:48,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:23:48,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:48,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:23:48,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:48,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:23:48,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:23:48,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:23:48,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:48,998 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-27 03:23:48,999 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [239892832] [2020-10-27 03:23:48,999 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 03:23:48,999 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 03:23:48,999 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366456] [2020-10-27 03:23:49,000 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 03:23:49,000 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:23:49,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 03:23:49,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-10-27 03:23:49,001 INFO L87 Difference]: Start difference. First operand 358 states and 446 transitions. Second operand 11 states. [2020-10-27 03:23:49,664 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:23:50,635 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 03:23:51,034 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 03:23:51,447 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 03:23:53,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:23:53,459 INFO L93 Difference]: Finished difference Result 848 states and 1206 transitions. [2020-10-27 03:23:53,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-27 03:23:53,460 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 103 [2020-10-27 03:23:53,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:23:53,466 INFO L225 Difference]: With dead ends: 848 [2020-10-27 03:23:53,466 INFO L226 Difference]: Without dead ends: 514 [2020-10-27 03:23:53,468 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=94, Invalid=248, Unknown=0, NotChecked=0, Total=342 [2020-10-27 03:23:53,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2020-10-27 03:23:53,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 366. [2020-10-27 03:23:53,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 366 states. [2020-10-27 03:23:53,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 448 transitions. [2020-10-27 03:23:53,562 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 448 transitions. Word has length 103 [2020-10-27 03:23:53,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:23:53,562 INFO L481 AbstractCegarLoop]: Abstraction has 366 states and 448 transitions. [2020-10-27 03:23:53,562 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 03:23:53,562 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 448 transitions. [2020-10-27 03:23:53,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-27 03:23:53,564 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:23:53,564 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 03:23:53,565 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 03:23:53,565 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]=== [2020-10-27 03:23:53,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:23:53,565 INFO L82 PathProgramCache]: Analyzing trace with hash 398605296, now seen corresponding path program 1 times [2020-10-27 03:23:53,566 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:23:53,566 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1840760166] [2020-10-27 03:23:53,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:23:53,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:53,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:54,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:54,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-27 03:23:54,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:54,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 775 [2020-10-27 03:23:54,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:54,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 03:23:54,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:23:54,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-27 03:23:54,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:54,750 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 03:23:54,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:23:54,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:54,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:54,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:54,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:23:54,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:54,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-27 03:23:54,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:54,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:23:54,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:54,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 03:23:54,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:54,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 03:23:54,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:54,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:54,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:54,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:23:54,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:54,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:23:54,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:54,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:23:54,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:54,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:23:54,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:54,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 03:23:54,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:54,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:54,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:54,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:23:54,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:54,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:23:54,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:54,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:23:54,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:54,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:23:54,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:54,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 03:23:54,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:54,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:54,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:54,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:23:54,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:54,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:23:54,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:54,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:23:54,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:54,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:23:54,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:54,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 03:23:54,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:54,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:54,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:54,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:23:54,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:54,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:23:54,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:54,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:23:54,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:54,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:23:54,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:54,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-27 03:23:54,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:54,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:54,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:54,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:23:54,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:54,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:23:54,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:54,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:23:54,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:54,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:23:54,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:54,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-27 03:23:54,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:54,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:54,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:54,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-27 03:23:54,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:54,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 03:23:54,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:54,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:23:54,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-27 03:23:54,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-27 03:23:54,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:54,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 03:23:54,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:54,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:54,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:54,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 03:23:54,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:54,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 03:23:54,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:54,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:23:54,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:54,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-27 03:23:54,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:54,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 03:23:54,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:54,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:54,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:54,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 03:23:54,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:54,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 03:23:54,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:54,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:23:54,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:54,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 03:23:54,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:54,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 03:23:54,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:54,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:54,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:54,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 03:23:54,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:54,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:23:54,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:54,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:23:54,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:54,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-27 03:23:54,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:54,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 03:23:54,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:54,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:54,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:54,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:23:54,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:54,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:23:54,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:54,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:23:54,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:54,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:23:54,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:54,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-27 03:23:54,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:54,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:54,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:54,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:23:54,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:54,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:23:54,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:54,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:23:54,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:23:54,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:23:54,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:54,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-27 03:23:54,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:54,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:54,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:54,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:23:54,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:54,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 03:23:54,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:54,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:23:54,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:23:54,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:23:54,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:54,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 03:23:54,980 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1840760166] [2020-10-27 03:23:54,980 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 03:23:54,980 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-27 03:23:54,980 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886179847] [2020-10-27 03:23:54,981 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 03:23:54,981 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:23:54,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 03:23:54,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-27 03:23:54,982 INFO L87 Difference]: Start difference. First operand 366 states and 448 transitions. Second operand 8 states. [2020-10-27 03:23:55,524 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:23:56,237 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:23:58,183 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:24:01,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:24:01,335 INFO L93 Difference]: Finished difference Result 1471 states and 2118 transitions. [2020-10-27 03:24:01,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-27 03:24:01,336 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 84 [2020-10-27 03:24:01,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:24:01,344 INFO L225 Difference]: With dead ends: 1471 [2020-10-27 03:24:01,345 INFO L226 Difference]: Without dead ends: 1099 [2020-10-27 03:24:01,348 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2020-10-27 03:24:01,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1099 states. [2020-10-27 03:24:01,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1099 to 943. [2020-10-27 03:24:01,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 943 states. [2020-10-27 03:24:01,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 943 states to 943 states and 1193 transitions. [2020-10-27 03:24:01,573 INFO L78 Accepts]: Start accepts. Automaton has 943 states and 1193 transitions. Word has length 84 [2020-10-27 03:24:01,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:24:01,575 INFO L481 AbstractCegarLoop]: Abstraction has 943 states and 1193 transitions. [2020-10-27 03:24:01,576 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 03:24:01,576 INFO L276 IsEmpty]: Start isEmpty. Operand 943 states and 1193 transitions. [2020-10-27 03:24:01,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-27 03:24:01,581 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:24:01,581 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 03:24:01,581 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 03:24:01,582 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]=== [2020-10-27 03:24:01,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:24:01,582 INFO L82 PathProgramCache]: Analyzing trace with hash 1210802314, now seen corresponding path program 1 times [2020-10-27 03:24:01,582 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:24:01,583 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1420566264] [2020-10-27 03:24:01,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:24:01,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 03:24:01,645 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 03:24:01,645 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 03:24:01,650 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 03:24:01,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 03:24:01 BoogieIcfgContainer [2020-10-27 03:24:01,688 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 03:24:01,691 INFO L168 Benchmark]: Toolchain (without parser) took 50379.07 ms. Allocated memory was 155.2 MB in the beginning and 622.9 MB in the end (delta: 467.7 MB). Free memory was 128.9 MB in the beginning and 581.5 MB in the end (delta: -452.6 MB). Peak memory consumption was 376.4 MB. Max. memory is 8.0 GB. [2020-10-27 03:24:01,697 INFO L168 Benchmark]: CDTParser took 0.61 ms. Allocated memory is still 155.2 MB. Free memory is still 127.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 03:24:01,698 INFO L168 Benchmark]: CACSL2BoogieTranslator took 740.48 ms. Allocated memory is still 155.2 MB. Free memory was 128.3 MB in the beginning and 107.1 MB in the end (delta: 21.2 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-10-27 03:24:01,699 INFO L168 Benchmark]: Boogie Preprocessor took 86.50 ms. Allocated memory is still 155.2 MB. Free memory was 107.1 MB in the beginning and 103.2 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-27 03:24:01,700 INFO L168 Benchmark]: RCFGBuilder took 1535.41 ms. Allocated memory was 155.2 MB in the beginning and 195.0 MB in the end (delta: 39.8 MB). Free memory was 103.2 MB in the beginning and 172.0 MB in the end (delta: -68.8 MB). Peak memory consumption was 56.1 MB. Max. memory is 8.0 GB. [2020-10-27 03:24:01,701 INFO L168 Benchmark]: TraceAbstraction took 47998.24 ms. Allocated memory was 195.0 MB in the beginning and 622.9 MB in the end (delta: 427.8 MB). Free memory was 171.5 MB in the beginning and 581.5 MB in the end (delta: -410.0 MB). Peak memory consumption was 377.9 MB. Max. memory is 8.0 GB. [2020-10-27 03:24:01,710 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.61 ms. Allocated memory is still 155.2 MB. Free memory is still 127.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 740.48 ms. Allocated memory is still 155.2 MB. Free memory was 128.3 MB in the beginning and 107.1 MB in the end (delta: 21.2 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 86.50 ms. Allocated memory is still 155.2 MB. Free memory was 107.1 MB in the beginning and 103.2 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1535.41 ms. Allocated memory was 155.2 MB in the beginning and 195.0 MB in the end (delta: 39.8 MB). Free memory was 103.2 MB in the beginning and 172.0 MB in the end (delta: -68.8 MB). Peak memory consumption was 56.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 47998.24 ms. Allocated memory was 195.0 MB in the beginning and 622.9 MB in the end (delta: 427.8 MB). Free memory was 171.5 MB in the beginning and 581.5 MB in the end (delta: -410.0 MB). Peak memory consumption was 377.9 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: [L71] int cleanupTimeShifts = 4; [L344] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L547] int pumpRunning = 0; [L548] int systemActive = 1; [L845] int waterLevel = 1; [L846] int methaneLevelCritical = 0; [L152] int retValue_acc ; [L153] int tmp ; [L157] FCALL select_helpers() [L158] FCALL select_features() [L159] CALL, EXPR valid_product() [L835] int retValue_acc ; [L838] retValue_acc = 1 [L839] return (retValue_acc); [L159] RET, EXPR valid_product() [L159] tmp = valid_product() [L161] COND TRUE \read(tmp) [L163] FCALL setup() [L164] CALL runTest() [L143] CALL test() [L745] int splverifierCounter ; [L746] int tmp ; [L747] int tmp___0 ; [L748] int tmp___1 ; [L749] int tmp___2 ; [L752] splverifierCounter = 0 [L754] COND TRUE 1 [L756] COND TRUE splverifierCounter < 4 [L762] tmp = __VERIFIER_nondet_int() [L764] COND TRUE \read(tmp) [L766] CALL waterRise() [L863] COND TRUE waterLevel < 2 [L864] waterLevel = waterLevel + 1 [L766] RET waterRise() [L772] tmp___0 = __VERIFIER_nondet_int() [L774] COND TRUE \read(tmp___0) [L776] CALL changeMethaneLevel() [L875] COND FALSE !(\read(methaneLevelCritical)) [L878] methaneLevelCritical = 1 [L776] RET changeMethaneLevel() [L782] tmp___2 = __VERIFIER_nondet_int() [L784] COND TRUE \read(tmp___2) [L797] CALL timeShift() [L554] COND FALSE !(\read(pumpRunning)) [L561] COND TRUE \read(systemActive) [L563] CALL processEnvironment() [L609] int tmp ; [L612] COND FALSE !(\read(pumpRunning)) [L627] CALL processEnvironment__wrappee__highWaterSensor() [L583] int tmp ; [L586] COND TRUE ! pumpRunning [L588] CALL, EXPR isHighWaterLevel() [L706] int retValue_acc ; [L707] int tmp ; [L708] int tmp___0 ; [L712] CALL, EXPR isHighWaterSensorDry() [L925] int retValue_acc ; [L928] COND FALSE !(waterLevel < 2) [L932] retValue_acc = 0 [L933] return (retValue_acc); [L712] RET, EXPR isHighWaterSensorDry() [L712] tmp = isHighWaterSensorDry() [L714] COND FALSE !(\read(tmp)) [L717] tmp___0 = 1 [L719] retValue_acc = tmp___0 [L720] return (retValue_acc); [L588] RET, EXPR isHighWaterLevel() [L588] tmp = isHighWaterLevel() [L590] COND TRUE \read(tmp) [L592] CALL activatePump() [L637] pumpRunning = 1 [L592] RET activatePump() [L627] RET processEnvironment__wrappee__highWaterSensor() [L563] RET processEnvironment() [L569] CALL __utac_acc__Specification1_spec__1() [L46] int tmp ; [L47] int tmp___0 ; [L51] CALL, EXPR isMethaneLevelCritical() [L884] int retValue_acc ; [L887] retValue_acc = methaneLevelCritical [L888] return (retValue_acc); [L51] RET, EXPR isMethaneLevelCritical() [L51] tmp = isMethaneLevelCritical() [L53] COND TRUE \read(tmp) [L55] CALL, EXPR isPumpRunning() [L661] int retValue_acc ; [L664] retValue_acc = pumpRunning [L665] return (retValue_acc); [L55] RET, EXPR isPumpRunning() [L55] tmp___0 = isPumpRunning() [L57] COND TRUE \read(tmp___0) [L59] CALL __automaton_fail() [L952] CALL reach_error() [L3] __assert_fail("0", "minepump_spec1_product49.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 247 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 47.8s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 26.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 698 SDtfs, 1578 SDslu, 845 SDs, 0 SdLazy, 4249 SolverSat, 1059 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 215 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 10.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=943occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 5 MinimizatonAttempts, 539 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 19.6s InterpolantComputationTime, 482 NumberOfCodeBlocks, 482 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 389 ConstructedInterpolants, 0 QuantifiedInterpolants, 135896 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 12/12 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...