/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --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_product43.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 11:25:11,207 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 11:25:11,211 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 11:25:11,267 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 11:25:11,268 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 11:25:11,274 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 11:25:11,276 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 11:25:11,281 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 11:25:11,285 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 11:25:11,292 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 11:25:11,294 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 11:25:11,295 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 11:25:11,295 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 11:25:11,299 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 11:25:11,302 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 11:25:11,305 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 11:25:11,306 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 11:25:11,310 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 11:25:11,318 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 11:25:11,323 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 11:25:11,328 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 11:25:11,329 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 11:25:11,331 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 11:25:11,334 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 11:25:11,343 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 11:25:11,343 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 11:25:11,344 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 11:25:11,345 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 11:25:11,348 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 11:25:11,349 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 11:25:11,349 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 11:25:11,350 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 11:25:11,352 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 11:25:11,353 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 11:25:11,354 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 11:25:11,354 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 11:25:11,355 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 11:25:11,355 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 11:25:11,381 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 11:25:11,384 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 11:25:11,385 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 11:25:11,389 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 [2020-10-29 11:25:11,450 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 11:25:11,450 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 11:25:11,454 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 11:25:11,455 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 11:25:11,455 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 11:25:11,455 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 11:25:11,455 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 11:25:11,456 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 11:25:11,456 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 11:25:11,456 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 11:25:11,457 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 11:25:11,457 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 11:25:11,458 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 11:25:11,458 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 11:25:11,458 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 11:25:11,458 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 11:25:11,459 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 11:25:11,459 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 11:25:11,459 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 11:25:11,459 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 11:25:11,460 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 11:25:11,460 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 11:25:11,460 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 11:25:11,461 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 11:25:11,461 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 11:25:11,461 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 11:25:11,461 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 11:25:11,461 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 11:25:11,462 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 11:25:11,462 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 11:25:11,862 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 11:25:11,909 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 11:25:11,912 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 11:25:11,913 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 11:25:11,914 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 11:25:11,915 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product43.cil.c [2020-10-29 11:25:12,005 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/46497d5d0/cdafe66669e148e7a4c205adb058a3b5/FLAG7057b18f7 [2020-10-29 11:25:12,732 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 11:25:12,733 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product43.cil.c [2020-10-29 11:25:12,747 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/46497d5d0/cdafe66669e148e7a4c205adb058a3b5/FLAG7057b18f7 [2020-10-29 11:25:13,019 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/46497d5d0/cdafe66669e148e7a4c205adb058a3b5 [2020-10-29 11:25:13,022 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 11:25:13,029 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 11:25:13,031 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 11:25:13,032 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 11:25:13,036 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 11:25:13,037 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 11:25:13" (1/1) ... [2020-10-29 11:25:13,040 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52d7cd02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:25:13, skipping insertion in model container [2020-10-29 11:25:13,041 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 11:25:13" (1/1) ... [2020-10-29 11:25:13,049 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 11:25:13,091 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 11:25:13,429 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 11:25:13,453 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 11:25:13,619 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 11:25:13,663 INFO L208 MainTranslator]: Completed translation [2020-10-29 11:25:13,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:25:13 WrapperNode [2020-10-29 11:25:13,664 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 11:25:13,665 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 11:25:13,666 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 11:25:13,666 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 11:25:13,679 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:25:13" (1/1) ... [2020-10-29 11:25:13,679 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:25:13" (1/1) ... [2020-10-29 11:25:13,702 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:25:13" (1/1) ... [2020-10-29 11:25:13,703 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:25:13" (1/1) ... [2020-10-29 11:25:13,736 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:25:13" (1/1) ... [2020-10-29 11:25:13,747 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:25:13" (1/1) ... [2020-10-29 11:25:13,753 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:25:13" (1/1) ... [2020-10-29 11:25:13,768 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 11:25:13,770 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 11:25:13,770 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 11:25:13,770 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 11:25:13,771 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:25:13" (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 [2020-10-29 11:25:13,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 11:25:13,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 11:25:13,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-29 11:25:13,850 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 11:25:13,850 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-29 11:25:13,850 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-29 11:25:13,850 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-29 11:25:13,851 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-29 11:25:13,851 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-29 11:25:13,851 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-29 11:25:13,851 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-29 11:25:13,851 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-29 11:25:13,851 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-29 11:25:13,852 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-29 11:25:13,852 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-10-29 11:25:13,852 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-29 11:25:13,852 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-29 11:25:13,852 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-29 11:25:13,852 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-29 11:25:13,853 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-29 11:25:13,853 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-29 11:25:13,853 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-29 11:25:13,853 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-29 11:25:13,853 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-29 11:25:13,853 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-10-29 11:25:13,853 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-29 11:25:13,854 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-29 11:25:13,854 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-29 11:25:13,854 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-29 11:25:13,854 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 11:25:13,854 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-29 11:25:13,854 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-29 11:25:13,854 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-29 11:25:13,855 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-29 11:25:13,855 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-29 11:25:13,855 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-29 11:25:13,855 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-29 11:25:13,855 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-29 11:25:13,855 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-29 11:25:13,855 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-29 11:25:13,856 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 11:25:13,856 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 11:25:13,856 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 11:25:13,856 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 11:25:13,856 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 11:25:13,856 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-29 11:25:13,856 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-29 11:25:13,857 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-29 11:25:13,857 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-29 11:25:13,857 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-29 11:25:13,857 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-29 11:25:13,857 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-29 11:25:13,857 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-29 11:25:13,857 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-29 11:25:13,858 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-29 11:25:13,858 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-29 11:25:13,858 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-29 11:25:13,858 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-29 11:25:13,858 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-29 11:25:13,858 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-10-29 11:25:13,859 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-29 11:25:13,859 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-29 11:25:13,859 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-29 11:25:13,859 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-10-29 11:25:13,859 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-29 11:25:13,859 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-29 11:25:13,859 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-29 11:25:13,860 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-29 11:25:13,860 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-29 11:25:13,860 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-29 11:25:13,860 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-29 11:25:13,860 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-29 11:25:13,860 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-29 11:25:13,860 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-29 11:25:13,861 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 11:25:13,861 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-29 11:25:13,861 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-29 11:25:13,861 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-29 11:25:13,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-29 11:25:13,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-29 11:25:13,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 11:25:13,862 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-29 11:25:13,862 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-29 11:25:13,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 11:25:13,862 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-29 11:25:13,862 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-29 11:25:13,862 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 11:25:13,863 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-29 11:25:13,863 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-29 11:25:13,863 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-29 11:25:13,863 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-29 11:25:13,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 11:25:13,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 11:25:13,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 11:25:14,967 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 11:25:14,967 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-29 11:25:14,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 11:25:14 BoogieIcfgContainer [2020-10-29 11:25:14,969 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 11:25:14,971 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 11:25:14,971 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 11:25:14,975 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 11:25:14,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 11:25:13" (1/3) ... [2020-10-29 11:25:14,976 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5114cb86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 11:25:14, skipping insertion in model container [2020-10-29 11:25:14,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:25:13" (2/3) ... [2020-10-29 11:25:14,976 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5114cb86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 11:25:14, skipping insertion in model container [2020-10-29 11:25:14,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 11:25:14" (3/3) ... [2020-10-29 11:25:14,978 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product43.cil.c [2020-10-29 11:25:14,988 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 11:25:14,992 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-29 11:25:15,003 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-29 11:25:15,029 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 11:25:15,029 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 11:25:15,030 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 11:25:15,030 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 11:25:15,030 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 11:25:15,030 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 11:25:15,030 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 11:25:15,030 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 11:25:15,061 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states. [2020-10-29 11:25:15,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-29 11:25:15,071 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 11:25:15,071 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] [2020-10-29 11:25:15,072 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]=== [2020-10-29 11:25:15,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 11:25:15,079 INFO L82 PathProgramCache]: Analyzing trace with hash 1483329480, now seen corresponding path program 1 times [2020-10-29 11:25:15,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 11:25:15,089 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1034569248] [2020-10-29 11:25:15,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 11:25:15,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:15,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:15,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:15,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:17,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:18,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:20,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:20,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-29 11:25:20,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 11:25:20,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-29 11:25:20,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:20,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:20,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 11:25:20,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:25:20,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-29 11:25:20,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 15 [2020-10-29 11:25:20,868 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-29 11:25:20,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 11:25:20,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:20,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:21,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:21,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:21,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:21,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 160 [2020-10-29 11:25:21,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:21,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:21,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:21,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:21,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 11:25:21,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:21,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 11:25:21,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:21,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:21,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:21,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:25:21,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:21,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:25:21,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:21,113 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:21,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:21,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:21,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:25:21,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:25:21,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 11:25:21,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:21,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:21,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:21,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:25:21,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:21,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:25:21,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:21,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:21,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:21,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:21,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:25:21,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:21,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 11:25:21,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:21,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:21,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:21,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:21,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:21,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 11:25:21,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:21,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:21,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:21,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:21,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:25:21,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:25:21,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 11:25:21,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:21,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:21,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:21,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:25:21,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:21,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:25:21,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:21,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:21,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:21,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:21,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:25:21,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:21,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-29 11:25:21,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:21,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:21,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:21,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:21,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:21,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:25:21,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:21,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:21,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:21,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:25:21,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:21,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:25:21,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-29 11:25:21,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:21,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:21,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:21,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:21,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:21,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:25:21,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:21,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:21,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:21,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:25:21,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:21,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:21,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 11:25:21,167 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1034569248] [2020-10-29 11:25:21,169 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 11:25:21,170 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 11:25:21,171 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392738725] [2020-10-29 11:25:21,177 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 11:25:21,177 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 11:25:21,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 11:25:21,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 11:25:21,196 INFO L87 Difference]: Start difference. First operand 173 states. Second operand 4 states. [2020-10-29 11:25:21,631 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:25:23,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 11:25:23,858 INFO L93 Difference]: Finished difference Result 434 states and 571 transitions. [2020-10-29 11:25:23,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 11:25:23,861 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-10-29 11:25:23,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 11:25:23,879 INFO L225 Difference]: With dead ends: 434 [2020-10-29 11:25:23,879 INFO L226 Difference]: Without dead ends: 282 [2020-10-29 11:25:23,885 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-29 11:25:23,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-10-29 11:25:24,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 217. [2020-10-29 11:25:24,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-10-29 11:25:24,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 258 transitions. [2020-10-29 11:25:24,138 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 258 transitions. Word has length 47 [2020-10-29 11:25:24,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 11:25:24,143 INFO L481 AbstractCegarLoop]: Abstraction has 217 states and 258 transitions. [2020-10-29 11:25:24,143 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 11:25:24,143 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 258 transitions. [2020-10-29 11:25:24,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-29 11:25:24,156 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 11:25:24,157 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] [2020-10-29 11:25:24,157 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 11:25:24,157 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]=== [2020-10-29 11:25:24,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 11:25:24,159 INFO L82 PathProgramCache]: Analyzing trace with hash -1020470199, now seen corresponding path program 1 times [2020-10-29 11:25:24,160 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 11:25:24,160 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1293261041] [2020-10-29 11:25:24,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 11:25:24,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:24,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:24,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:24,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:25,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:29,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:29,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-29 11:25:29,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 11:25:29,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-29 11:25:29,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:29,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:29,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-29 11:25:29,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:25:29,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-29 11:25:29,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:25:29,616 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-29 11:25:29,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 11:25:29,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:29,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:29,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:29,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:29,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:29,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-29 11:25:29,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:29,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:29,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:29,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:29,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 11:25:29,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:25:29,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 11:25:29,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:29,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:29,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:29,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:25:29,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:29,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:25:29,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:29,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:29,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:29,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:29,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:25:29,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 11:25:29,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 11:25:29,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:29,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:29,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:29,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:25:29,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:29,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:25:29,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:29,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:29,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:29,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:29,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:25:29,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:25:29,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 11:25:29,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:29,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:29,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:29,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:29,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:29,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 11:25:29,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:29,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:29,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:29,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:29,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:25:29,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 11:25:29,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 11:25:29,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:29,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:29,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:29,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:25:29,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:29,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 11:25:29,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:29,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:29,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:29,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:29,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:25:29,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:25:29,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-29 11:25:29,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:29,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:29,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:29,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-29 11:25:29,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:29,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 11:25:29,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:29,838 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:29,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:29,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:29,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 11:25:29,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:25:29,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 11:25:29,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:29,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:29,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:29,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:25:29,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:29,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:25:29,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:29,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:29,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:29,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:29,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:29,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:25:29,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-29 11:25:29,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:29,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:29,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:29,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:29,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:29,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 11:25:29,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:29,858 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:29,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 11:25:29,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:29,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:25:29,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:25:29,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-29 11:25:29,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:29,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:29,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:29,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:29,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:29,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:25:29,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:29,886 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:29,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:29,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:25:29,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:29,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:25:29,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 11:25:29,903 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1293261041] [2020-10-29 11:25:29,904 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 11:25:29,904 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-29 11:25:29,905 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937682474] [2020-10-29 11:25:29,907 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 11:25:29,908 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 11:25:29,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 11:25:29,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-29 11:25:29,909 INFO L87 Difference]: Start difference. First operand 217 states and 258 transitions. Second operand 8 states. [2020-10-29 11:25:30,415 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:25:31,954 WARN L193 SmtUtils]: Spent 588.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 206 [2020-10-29 11:25:32,326 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:25:32,617 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-29 11:25:33,005 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-29 11:25:33,478 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:25:34,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 11:25:34,965 INFO L93 Difference]: Finished difference Result 777 states and 1050 transitions. [2020-10-29 11:25:34,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-29 11:25:34,973 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 56 [2020-10-29 11:25:34,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 11:25:34,983 INFO L225 Difference]: With dead ends: 777 [2020-10-29 11:25:34,983 INFO L226 Difference]: Without dead ends: 539 [2020-10-29 11:25:34,987 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2020-10-29 11:25:34,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2020-10-29 11:25:35,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 376. [2020-10-29 11:25:35,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 376 states. [2020-10-29 11:25:35,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 449 transitions. [2020-10-29 11:25:35,112 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 449 transitions. Word has length 56 [2020-10-29 11:25:35,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 11:25:35,112 INFO L481 AbstractCegarLoop]: Abstraction has 376 states and 449 transitions. [2020-10-29 11:25:35,112 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 11:25:35,112 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 449 transitions. [2020-10-29 11:25:35,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-10-29 11:25:35,115 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 11:25:35,116 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] [2020-10-29 11:25:35,116 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 11:25:35,116 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]=== [2020-10-29 11:25:35,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 11:25:35,117 INFO L82 PathProgramCache]: Analyzing trace with hash 1568183856, now seen corresponding path program 1 times [2020-10-29 11:25:35,117 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 11:25:35,117 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2056938616] [2020-10-29 11:25:35,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 11:25:35,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:35,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:35,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:35,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:37,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:37,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-29 11:25:37,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 11:25:37,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1990 [2020-10-29 11:25:37,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:37,141 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:37,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-29 11:25:37,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:25:37,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-29 11:25:37,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:37,479 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-29 11:25:37,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 11:25:37,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:37,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:37,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:37,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:37,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:37,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-29 11:25:37,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:37,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:37,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:37,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:37,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 11:25:37,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:37,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 11:25:37,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:37,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:37,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:37,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:25:37,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:37,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:25:37,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:37,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:37,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:37,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:37,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:25:37,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:37,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 11:25:37,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:37,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:37,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:37,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:25:37,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:37,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:25:37,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:37,626 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:37,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:37,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:37,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:25:37,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:37,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 11:25:37,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:37,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:37,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:37,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:37,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:37,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:25:37,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:37,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:37,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:37,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:37,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:25:37,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:37,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 11:25:37,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:37,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:37,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:37,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:25:37,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:37,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:25:37,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:37,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:37,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:37,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:37,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:25:37,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:37,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-29 11:25:37,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:37,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:37,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:37,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:37,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:37,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:25:37,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:37,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:37,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:37,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:37,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:25:37,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:37,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-29 11:25:37,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:37,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:37,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:37,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:37,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 11:25:37,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 11:25:37,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 11:25:37,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:37,679 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:37,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 11:25:37,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 11:25:37,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-29 11:25:37,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:37,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-29 11:25:37,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:37,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:37,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:37,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:37,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:37,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:25:37,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:37,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:37,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:37,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:37,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:25:37,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:37,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-29 11:25:37,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:37,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:37,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:37,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:37,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:37,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 11:25:37,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:37,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:37,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 11:25:37,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:37,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:25:37,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:37,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 11:25:37,737 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2056938616] [2020-10-29 11:25:37,737 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 11:25:37,737 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-29 11:25:37,737 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117297168] [2020-10-29 11:25:37,738 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-29 11:25:37,738 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 11:25:37,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-29 11:25:37,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-29 11:25:37,739 INFO L87 Difference]: Start difference. First operand 376 states and 449 transitions. Second operand 10 states. [2020-10-29 11:25:38,248 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:25:39,314 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:25:39,669 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:25:39,988 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-29 11:25:40,728 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:25:41,050 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:25:42,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 11:25:42,734 INFO L93 Difference]: Finished difference Result 1205 states and 1659 transitions. [2020-10-29 11:25:42,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-29 11:25:42,734 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 62 [2020-10-29 11:25:42,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 11:25:42,742 INFO L225 Difference]: With dead ends: 1205 [2020-10-29 11:25:42,742 INFO L226 Difference]: Without dead ends: 853 [2020-10-29 11:25:42,745 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=135, Invalid=327, Unknown=0, NotChecked=0, Total=462 [2020-10-29 11:25:42,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 853 states. [2020-10-29 11:25:42,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 853 to 628. [2020-10-29 11:25:42,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 628 states. [2020-10-29 11:25:42,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 787 transitions. [2020-10-29 11:25:42,945 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 787 transitions. Word has length 62 [2020-10-29 11:25:42,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 11:25:42,950 INFO L481 AbstractCegarLoop]: Abstraction has 628 states and 787 transitions. [2020-10-29 11:25:42,950 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-29 11:25:42,951 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 787 transitions. [2020-10-29 11:25:42,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-29 11:25:42,956 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 11:25:42,956 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 11:25:42,957 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 11:25:42,957 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]=== [2020-10-29 11:25:42,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 11:25:42,958 INFO L82 PathProgramCache]: Analyzing trace with hash 909862430, now seen corresponding path program 1 times [2020-10-29 11:25:42,958 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 11:25:42,958 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1656539792] [2020-10-29 11:25:42,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 11:25:42,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:43,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:43,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:43,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:47,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:47,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 140 [2020-10-29 11:25:47,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 11:25:47,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4990 [2020-10-29 11:25:47,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:47,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:47,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 11:25:47,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-29 11:25:47,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-29 11:25:47,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:48,298 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-29 11:25:48,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 11:25:48,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:48,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:48,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:48,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:48,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:48,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 11:25:48,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:48,337 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:48,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:48,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:48,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:48,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:48,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 11:25:48,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:48,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:48,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:48,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:25:48,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:48,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:25:48,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:48,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:48,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:48,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:48,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:48,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:48,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 11:25:48,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:48,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:48,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:48,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:25:48,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:48,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:25:48,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:48,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:48,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:48,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:48,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:48,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:25:48,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 11:25:48,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:48,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:48,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:48,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:48,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:48,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:25:48,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:48,366 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:48,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:48,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:48,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:48,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:48,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 11:25:48,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:48,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:48,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:48,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:25:48,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:48,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 11:25:48,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:48,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:48,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:48,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:48,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:48,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 11:25:48,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-29 11:25:48,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:48,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:48,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:48,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:48,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:48,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:25:48,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:48,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:48,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:48,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:48,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 11:25:48,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:48,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-29 11:25:48,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:48,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:48,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:48,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:48,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-29 11:25:48,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 11:25:48,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-29 11:25:48,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:48,505 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:48,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 11:25:48,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-29 11:25:48,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-29 11:25:48,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:48,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 11:25:48,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:48,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:48,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:48,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-29 11:25:48,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:48,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:25:48,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:48,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:48,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:48,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:48,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:48,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:48,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 11:25:48,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:48,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:48,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:48,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 11:25:48,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:48,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:25:48,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:48,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:48,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:48,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:48,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:48,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:48,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-29 11:25:48,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:48,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:48,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:48,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-29 11:25:48,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:48,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-29 11:25:48,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:48,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:48,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 11:25:48,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:48,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-29 11:25:48,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:48,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 11:25:48,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:48,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:48,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:48,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 11:25:48,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:48,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-29 11:25:48,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:48,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:48,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 11:25:48,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:48,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 11:25:48,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:25:48,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 11:25:48,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:48,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:48,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:48,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:48,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:48,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 11:25:48,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:48,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:48,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 11:25:48,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:48,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:25:48,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:48,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 11:25:48,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:48,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:48,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:48,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:48,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:48,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:25:48,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:48,723 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:48,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:48,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:48,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:25:48,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:48,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-29 11:25:48,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:48,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:48,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:48,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:48,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:48,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:25:48,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:48,732 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:48,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:48,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:25:48,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:48,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:48,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-29 11:25:48,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:48,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:48,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:48,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:48,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:48,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:25:48,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:48,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:48,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:48,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:25:48,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:48,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:48,757 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-29 11:25:48,758 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1656539792] [2020-10-29 11:25:48,758 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 11:25:48,758 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-29 11:25:48,758 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026973867] [2020-10-29 11:25:48,760 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-29 11:25:48,760 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 11:25:48,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-29 11:25:48,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-10-29 11:25:48,762 INFO L87 Difference]: Start difference. First operand 628 states and 787 transitions. Second operand 12 states. [2020-10-29 11:25:49,326 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:25:50,148 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:25:50,760 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:25:51,201 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:25:52,046 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:25:52,368 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:25:52,750 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:25:53,060 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:25:53,358 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:25:53,642 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:25:54,042 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:25:54,399 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:25:55,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 11:25:55,798 INFO L93 Difference]: Finished difference Result 1402 states and 1862 transitions. [2020-10-29 11:25:55,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-29 11:25:55,798 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 94 [2020-10-29 11:25:55,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 11:25:55,805 INFO L225 Difference]: With dead ends: 1402 [2020-10-29 11:25:55,805 INFO L226 Difference]: Without dead ends: 766 [2020-10-29 11:25:55,808 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=188, Invalid=742, Unknown=0, NotChecked=0, Total=930 [2020-10-29 11:25:55,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states. [2020-10-29 11:25:55,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 588. [2020-10-29 11:25:55,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 588 states. [2020-10-29 11:25:55,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 707 transitions. [2020-10-29 11:25:55,971 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 707 transitions. Word has length 94 [2020-10-29 11:25:55,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 11:25:55,971 INFO L481 AbstractCegarLoop]: Abstraction has 588 states and 707 transitions. [2020-10-29 11:25:55,971 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-29 11:25:55,972 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 707 transitions. [2020-10-29 11:25:55,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-10-29 11:25:55,975 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 11:25:55,976 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 11:25:55,976 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 11:25:55,977 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]=== [2020-10-29 11:25:55,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 11:25:55,977 INFO L82 PathProgramCache]: Analyzing trace with hash -2009259984, now seen corresponding path program 1 times [2020-10-29 11:25:55,977 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 11:25:55,978 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [940566854] [2020-10-29 11:25:55,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 11:25:56,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:56,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:56,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:56,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:57,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:57,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-29 11:25:57,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 11:25:57,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 994 [2020-10-29 11:25:57,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:57,002 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:57,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:57,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-29 11:25:57,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-10-29 11:25:57,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:57,317 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-29 11:25:57,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 11:25:57,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:57,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:57,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:57,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:57,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:57,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-29 11:25:57,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:57,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:57,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:57,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:57,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:57,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:57,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 11:25:57,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:57,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:57,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:57,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:25:57,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:57,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:25:57,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:57,377 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:57,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:57,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:57,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:57,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:57,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 11:25:57,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:57,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:57,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:57,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:25:57,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:57,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:25:57,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:57,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:57,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:57,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:57,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:57,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:57,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 11:25:57,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:57,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:57,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:57,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:57,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:57,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 11:25:57,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:57,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:57,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:57,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:57,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:57,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:57,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 11:25:57,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:57,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:57,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:57,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:25:57,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:57,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 11:25:57,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:57,393 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:57,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:57,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:57,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:57,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:57,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-29 11:25:57,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:57,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:57,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:57,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 11:25:57,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:57,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:25:57,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:57,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:57,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:57,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:57,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:57,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:25:57,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-29 11:25:57,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:57,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:57,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:57,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:57,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-29 11:25:57,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 11:25:57,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-10-29 11:25:57,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:57,560 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:57,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 11:25:57,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 11:25:57,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 11:25:57,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:57,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 11:25:57,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:57,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:57,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:57,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-29 11:25:57,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:57,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 11:25:57,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:57,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:57,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 11:25:57,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-29 11:25:57,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 11:25:57,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:57,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 11:25:57,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:57,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:57,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:57,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-29 11:25:57,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:57,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 11:25:57,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:57,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:57,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 11:25:57,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:57,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-29 11:25:57,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:57,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 11:25:57,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:57,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:57,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:57,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 11:25:57,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:57,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:25:57,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:57,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:57,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:57,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:57,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:57,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:57,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-29 11:25:57,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:57,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:57,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:57,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-29 11:25:57,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:57,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 11:25:57,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:57,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:57,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:57,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-29 11:25:57,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:57,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:57,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 11:25:57,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:57,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:57,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:57,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 11:25:57,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:57,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:25:57,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:57,723 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:57,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:57,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:57,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:57,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:25:57,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 11:25:57,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:57,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:57,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:57,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:57,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:57,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:25:57,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:57,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:57,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:57,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:57,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:57,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:25:57,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 11:25:57,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:57,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:57,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:57,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:57,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:57,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:25:57,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:57,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:57,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:57,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:57,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:57,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:57,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-29 11:25:57,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:57,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:57,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:57,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-29 11:25:57,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:57,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 11:25:57,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:57,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:57,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:57,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-29 11:25:57,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:57,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:57,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 11:25:57,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:57,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:57,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:57,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:57,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:57,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:25:57,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:57,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:57,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:57,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:57,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:57,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:57,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-29 11:25:57,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:57,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:57,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:57,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:57,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:57,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 11:25:57,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:57,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:57,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:57,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:57,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:25:57,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:57,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-29 11:25:57,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:57,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:57,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:57,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:57,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:57,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 11:25:57,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:57,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:57,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:57,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:57,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:25:57,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:57,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-29 11:25:57,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:57,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:57,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:57,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:57,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:57,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:25:57,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:57,803 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:57,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:57,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:25:57,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:57,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:57,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 11:25:57,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:57,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:57,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:57,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:57,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:57,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:25:57,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:57,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:57,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:57,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:25:57,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:57,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:57,843 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-29 11:25:57,843 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [940566854] [2020-10-29 11:25:57,844 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 11:25:57,844 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-29 11:25:57,844 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561880134] [2020-10-29 11:25:57,845 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-29 11:25:57,845 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 11:25:57,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-29 11:25:57,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-10-29 11:25:57,846 INFO L87 Difference]: Start difference. First operand 588 states and 707 transitions. Second operand 13 states. [2020-10-29 11:25:58,437 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-29 11:25:59,390 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-29 11:25:59,731 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-29 11:26:00,075 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-29 11:26:00,406 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-29 11:26:03,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 11:26:03,864 INFO L93 Difference]: Finished difference Result 1794 states and 2602 transitions. [2020-10-29 11:26:03,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-29 11:26:03,865 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 127 [2020-10-29 11:26:03,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 11:26:03,878 INFO L225 Difference]: With dead ends: 1794 [2020-10-29 11:26:03,878 INFO L226 Difference]: Without dead ends: 1230 [2020-10-29 11:26:03,882 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 242 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=276, Invalid=780, Unknown=0, NotChecked=0, Total=1056 [2020-10-29 11:26:03,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1230 states. [2020-10-29 11:26:04,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1230 to 678. [2020-10-29 11:26:04,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 678 states. [2020-10-29 11:26:04,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 807 transitions. [2020-10-29 11:26:04,057 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 807 transitions. Word has length 127 [2020-10-29 11:26:04,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 11:26:04,058 INFO L481 AbstractCegarLoop]: Abstraction has 678 states and 807 transitions. [2020-10-29 11:26:04,058 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-29 11:26:04,058 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 807 transitions. [2020-10-29 11:26:04,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-10-29 11:26:04,063 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 11:26:04,063 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 11:26:04,064 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 11:26:04,064 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]=== [2020-10-29 11:26:04,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 11:26:04,064 INFO L82 PathProgramCache]: Analyzing trace with hash -1679813672, now seen corresponding path program 1 times [2020-10-29 11:26:04,065 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 11:26:04,065 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1006791492] [2020-10-29 11:26:04,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 11:26:04,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:04,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:04,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:07,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:07,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-29 11:26:07,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 11:26:07,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3386 [2020-10-29 11:26:07,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:07,482 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:07,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-29 11:26:07,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:26:07,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 140 [2020-10-29 11:26:07,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:07,841 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-29 11:26:07,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 11:26:07,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:07,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:07,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:07,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:26:07,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:07,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-29 11:26:07,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:07,978 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:07,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:26:07,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:07,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 11:26:07,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:26:07,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 11:26:08,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:08,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:08,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:08,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:26:08,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:08,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:26:08,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:08,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:08,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:26:08,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:08,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:26:08,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:26:08,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 11:26:08,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:08,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:08,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:08,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:26:08,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:08,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:26:08,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:08,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:08,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:26:08,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:08,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:26:08,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:26:08,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 11:26:08,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:08,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:08,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:08,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:26:08,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:08,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:26:08,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:08,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:08,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:26:08,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:08,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:26:08,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:08,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 11:26:08,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:08,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:08,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:08,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:26:08,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:08,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:26:08,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:08,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:08,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:26:08,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:08,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:26:08,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:08,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-29 11:26:08,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:08,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:08,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:08,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:08,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-29 11:26:08,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 11:26:08,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-29 11:26:08,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:08,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:08,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 11:26:08,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 11:26:08,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-29 11:26:08,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:26:08,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 11:26:08,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:08,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:08,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:08,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:08,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-29 11:26:08,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 11:26:08,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-29 11:26:08,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:08,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:08,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:26:08,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:08,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-29 11:26:08,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:08,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 11:26:08,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:08,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:08,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:08,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:08,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-29 11:26:08,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 11:26:08,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 11:26:08,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:08,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:08,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 11:26:08,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 11:26:08,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:26:08,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:08,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 11:26:08,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:08,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:08,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:08,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 11:26:08,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:08,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 11:26:08,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:08,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:08,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 11:26:08,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:08,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:26:08,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:08,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-29 11:26:08,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:08,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:08,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:08,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-29 11:26:08,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:08,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:26:08,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:08,257 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:08,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:26:08,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:08,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:26:08,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:08,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 11:26:08,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:08,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:08,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:08,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 11:26:08,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:08,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:26:08,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:08,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:08,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:26:08,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:08,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:26:08,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:08,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 11:26:08,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:08,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:08,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:08,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:26:08,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:08,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 11:26:08,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:08,268 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:08,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:26:08,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:08,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:26:08,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:08,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 11:26:08,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:08,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:08,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:08,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:26:08,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:08,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:26:08,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:08,273 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:08,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:26:08,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:08,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:26:08,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:08,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-29 11:26:08,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:08,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:08,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:08,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-29 11:26:08,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:08,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 11:26:08,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:08,285 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:08,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:26:08,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:08,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-29 11:26:08,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:08,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 11:26:08,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:08,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:08,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:08,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:26:08,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:08,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:26:08,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:08,291 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:08,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:26:08,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:08,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:26:08,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:08,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-29 11:26:08,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:08,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:08,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:08,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:26:08,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:08,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:26:08,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:08,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:08,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:26:08,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:08,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:26:08,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:08,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-29 11:26:08,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:08,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:08,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:08,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:26:08,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:08,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 11:26:08,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:08,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:08,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 11:26:08,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 11:26:08,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 11:26:08,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:08,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-29 11:26:08,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:08,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:08,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:08,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-29 11:26:08,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:08,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:26:08,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:08,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:08,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:26:08,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 11:26:08,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:26:08,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:08,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 11:26:08,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:08,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:08,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:08,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:26:08,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:08,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 11:26:08,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:08,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:08,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:26:08,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:08,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:26:08,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:08,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-29 11:26:08,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:08,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:08,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:08,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:26:08,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:08,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 11:26:08,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:08,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:08,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:26:08,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:26:08,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:26:08,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:08,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-29 11:26:08,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:08,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:08,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:08,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:26:08,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:08,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:26:08,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:08,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:08,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:26:08,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:26:08,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:26:08,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:08,399 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-10-29 11:26:08,399 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1006791492] [2020-10-29 11:26:08,400 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 11:26:08,400 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-29 11:26:08,401 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112223721] [2020-10-29 11:26:08,402 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-29 11:26:08,402 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 11:26:08,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-29 11:26:08,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-10-29 11:26:08,404 INFO L87 Difference]: Start difference. First operand 678 states and 807 transitions. Second operand 12 states. [2020-10-29 11:26:08,886 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:26:09,765 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:26:10,074 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:26:10,362 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:26:10,606 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-29 11:26:10,895 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-29 11:26:11,266 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-29 11:26:11,596 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-29 11:26:13,442 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-29 11:26:13,782 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-29 11:26:14,084 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-29 11:26:14,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 11:26:14,951 INFO L93 Difference]: Finished difference Result 2177 states and 2854 transitions. [2020-10-29 11:26:14,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-29 11:26:14,952 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 129 [2020-10-29 11:26:14,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 11:26:14,964 INFO L225 Difference]: With dead ends: 2177 [2020-10-29 11:26:14,964 INFO L226 Difference]: Without dead ends: 1509 [2020-10-29 11:26:14,968 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 46 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=230, Invalid=640, Unknown=0, NotChecked=0, Total=870 [2020-10-29 11:26:14,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1509 states. [2020-10-29 11:26:15,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1509 to 1258. [2020-10-29 11:26:15,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1258 states. [2020-10-29 11:26:15,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1258 states to 1258 states and 1464 transitions. [2020-10-29 11:26:15,207 INFO L78 Accepts]: Start accepts. Automaton has 1258 states and 1464 transitions. Word has length 129 [2020-10-29 11:26:15,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 11:26:15,208 INFO L481 AbstractCegarLoop]: Abstraction has 1258 states and 1464 transitions. [2020-10-29 11:26:15,208 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-29 11:26:15,208 INFO L276 IsEmpty]: Start isEmpty. Operand 1258 states and 1464 transitions. [2020-10-29 11:26:15,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-10-29 11:26:15,213 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 11:26:15,214 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 11:26:15,214 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 11:26:15,214 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 11:26:15,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 11:26:15,215 INFO L82 PathProgramCache]: Analyzing trace with hash -965567811, now seen corresponding path program 1 times [2020-10-29 11:26:15,215 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 11:26:15,215 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [801106572] [2020-10-29 11:26:15,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 11:26:15,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-29 11:26:15,258 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-29 11:26:15,258 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-29 11:26:15,262 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 11:26:15,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 11:26:15 BoogieIcfgContainer [2020-10-29 11:26:15,291 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-29 11:26:15,293 INFO L168 Benchmark]: Toolchain (without parser) took 62268.48 ms. Allocated memory was 151.0 MB in the beginning and 679.5 MB in the end (delta: 528.5 MB). Free memory was 106.1 MB in the beginning and 475.0 MB in the end (delta: -368.9 MB). Peak memory consumption was 160.3 MB. Max. memory is 8.0 GB. [2020-10-29 11:26:15,293 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 151.0 MB. Free memory is still 124.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 11:26:15,294 INFO L168 Benchmark]: CACSL2BoogieTranslator took 633.32 ms. Allocated memory is still 151.0 MB. Free memory was 105.3 MB in the beginning and 125.8 MB in the end (delta: -20.5 MB). Peak memory consumption was 18.9 MB. Max. memory is 8.0 GB. [2020-10-29 11:26:15,295 INFO L168 Benchmark]: Boogie Preprocessor took 103.29 ms. Allocated memory is still 151.0 MB. Free memory was 125.8 MB in the beginning and 122.1 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-29 11:26:15,296 INFO L168 Benchmark]: RCFGBuilder took 1199.94 ms. Allocated memory is still 151.0 MB. Free memory was 122.1 MB in the beginning and 115.4 MB in the end (delta: 6.8 MB). Peak memory consumption was 74.4 MB. Max. memory is 8.0 GB. [2020-10-29 11:26:15,297 INFO L168 Benchmark]: TraceAbstraction took 60319.60 ms. Allocated memory was 151.0 MB in the beginning and 679.5 MB in the end (delta: 528.5 MB). Free memory was 114.8 MB in the beginning and 475.0 MB in the end (delta: -360.2 MB). Peak memory consumption was 167.8 MB. Max. memory is 8.0 GB. [2020-10-29 11:26:15,300 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 151.0 MB. Free memory is still 124.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 633.32 ms. Allocated memory is still 151.0 MB. Free memory was 105.3 MB in the beginning and 125.8 MB in the end (delta: -20.5 MB). Peak memory consumption was 18.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 103.29 ms. Allocated memory is still 151.0 MB. Free memory was 125.8 MB in the beginning and 122.1 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1199.94 ms. Allocated memory is still 151.0 MB. Free memory was 122.1 MB in the beginning and 115.4 MB in the end (delta: 6.8 MB). Peak memory consumption was 74.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 60319.60 ms. Allocated memory was 151.0 MB in the beginning and 679.5 MB in the end (delta: 528.5 MB). Free memory was 114.8 MB in the beginning and 475.0 MB in the end (delta: -360.2 MB). Peak memory consumption was 167.8 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: [L49] int waterLevel = 1; [L50] int methaneLevelCritical = 0; [L149] int pumpRunning = 0; [L150] int systemActive = 1; [L438] int cleanupTimeShifts = 4; [L706] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L514] int retValue_acc ; [L515] int tmp ; [L519] FCALL select_helpers() [L520] FCALL select_features() [L521] CALL, EXPR valid_product() [L929] int retValue_acc ; [L932] retValue_acc = 1 [L933] return (retValue_acc); [L521] RET, EXPR valid_product() [L521] tmp = valid_product() [L523] COND TRUE \read(tmp) [L525] FCALL setup() [L526] CALL runTest() [L505] CALL test() [L337] int splverifierCounter ; [L338] int tmp ; [L339] int tmp___0 ; [L340] int tmp___1 ; [L341] int tmp___2 ; [L344] splverifierCounter = 0 [L346] COND TRUE 1 [L348] COND TRUE splverifierCounter < 4 [L354] tmp = __VERIFIER_nondet_int() [L356] COND TRUE \read(tmp) [L358] CALL waterRise() [L67] COND TRUE waterLevel < 2 [L68] waterLevel = waterLevel + 1 [L358] RET waterRise() [L364] tmp___0 = __VERIFIER_nondet_int() [L366] COND FALSE !(\read(tmp___0)) [L374] tmp___2 = __VERIFIER_nondet_int() [L376] COND TRUE \read(tmp___2) [L391] CALL timeShift() [L157] COND FALSE !(\read(pumpRunning)) [L164] COND TRUE \read(systemActive) [L166] CALL processEnvironment() [L186] int tmp ; [L189] COND TRUE ! pumpRunning [L191] CALL, EXPR isHighWaterLevel() [L301] int retValue_acc ; [L302] int tmp ; [L303] int tmp___0 ; [L307] CALL, EXPR isHighWaterSensorDry() [L129] int retValue_acc ; [L132] COND FALSE !(waterLevel < 2) [L136] retValue_acc = 0 [L137] return (retValue_acc); [L307] RET, EXPR isHighWaterSensorDry() [L307] tmp = isHighWaterSensorDry() [L309] COND FALSE !(\read(tmp)) [L312] tmp___0 = 1 [L314] retValue_acc = tmp___0 [L315] return (retValue_acc); [L191] RET, EXPR isHighWaterLevel() [L191] tmp = isHighWaterLevel() [L193] COND TRUE \read(tmp) [L195] CALL activatePump() [L220] int tmp ; [L224] CALL, EXPR isMethaneAlarm() [L245] int retValue_acc ; [L249] CALL, EXPR isMethaneLevelCritical() [L88] int retValue_acc ; [L91] retValue_acc = methaneLevelCritical [L92] return (retValue_acc); [L249] RET, EXPR isMethaneLevelCritical() [L249] retValue_acc = isMethaneLevelCritical() [L251] return (retValue_acc); [L224] RET, EXPR isMethaneAlarm() [L224] tmp = isMethaneAlarm() [L226] COND FALSE !(\read(tmp)) [L230] CALL activatePump__wrappee__highWaterSensor() [L214] pumpRunning = 1 [L230] RET activatePump__wrappee__highWaterSensor() [L195] RET activatePump() [L166] RET processEnvironment() [L172] CALL __utac_acc__Specification1_spec__1() [L413] int tmp ; [L414] int tmp___0 ; [L418] CALL, EXPR isMethaneLevelCritical() [L88] int retValue_acc ; [L91] retValue_acc = methaneLevelCritical [L92] return (retValue_acc); [L418] RET, EXPR isMethaneLevelCritical() [L418] tmp = isMethaneLevelCritical() [L420] COND FALSE !(\read(tmp)) [L172] RET __utac_acc__Specification1_spec__1() [L391] RET timeShift() [L346] COND TRUE 1 [L348] COND TRUE splverifierCounter < 4 [L354] tmp = __VERIFIER_nondet_int() [L356] COND FALSE !(\read(tmp)) [L364] tmp___0 = __VERIFIER_nondet_int() [L366] COND TRUE \read(tmp___0) [L368] CALL changeMethaneLevel() [L79] COND FALSE !(\read(methaneLevelCritical)) [L82] methaneLevelCritical = 1 [L368] RET changeMethaneLevel() [L374] tmp___2 = __VERIFIER_nondet_int() [L376] COND TRUE \read(tmp___2) [L391] CALL timeShift() [L157] COND TRUE \read(pumpRunning) [L159] CALL lowerWaterLevel() [L55] COND TRUE waterLevel > 0 [L56] waterLevel = waterLevel - 1 [L159] RET lowerWaterLevel() [L164] COND TRUE \read(systemActive) [L166] CALL processEnvironment() [L186] int tmp ; [L189] COND FALSE !(! pumpRunning) [L204] FCALL processEnvironment__wrappee__base() [L166] RET processEnvironment() [L172] CALL __utac_acc__Specification1_spec__1() [L413] int tmp ; [L414] int tmp___0 ; [L418] CALL, EXPR isMethaneLevelCritical() [L88] int retValue_acc ; [L91] retValue_acc = methaneLevelCritical [L92] return (retValue_acc); [L418] RET, EXPR isMethaneLevelCritical() [L418] tmp = isMethaneLevelCritical() [L420] COND TRUE \read(tmp) [L422] CALL, EXPR isPumpRunning() [L256] int retValue_acc ; [L259] retValue_acc = pumpRunning [L260] return (retValue_acc); [L422] RET, EXPR isPumpRunning() [L422] tmp___0 = isPumpRunning() [L424] COND TRUE \read(tmp___0) [L426] CALL __automaton_fail() [L407] CALL reach_error() [L3] __assert_fail("0", "minepump_spec1_product43.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 240 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 60.2s, OverallIterations: 7, TraceHistogramMax: 3, AutomataDifference: 32.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 814 SDtfs, 2357 SDslu, 1202 SDs, 0 SdLazy, 7326 SolverSat, 1636 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 319 GetRequests, 192 SyntacticMatches, 2 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 666 ImplicationChecksByTransitivity, 14.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1258occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 1434 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 25.8s InterpolantComputationTime, 648 NumberOfCodeBlocks, 648 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 509 ConstructedInterpolants, 0 QuantifiedInterpolants, 191394 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 54/58 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...