/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_spec3_product19.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 11:37:29,192 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 11:37:29,195 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 11:37:29,233 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 11:37:29,234 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 11:37:29,241 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 11:37:29,244 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 11:37:29,249 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 11:37:29,252 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 11:37:29,260 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 11:37:29,262 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 11:37:29,263 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 11:37:29,264 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 11:37:29,267 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 11:37:29,272 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 11:37:29,274 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 11:37:29,275 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 11:37:29,280 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 11:37:29,288 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 11:37:29,293 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 11:37:29,298 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 11:37:29,299 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 11:37:29,301 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 11:37:29,304 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 11:37:29,321 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 11:37:29,321 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 11:37:29,321 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 11:37:29,324 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 11:37:29,324 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 11:37:29,326 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 11:37:29,326 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 11:37:29,327 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 11:37:29,329 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 11:37:29,330 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 11:37:29,331 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 11:37:29,331 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 11:37:29,332 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 11:37:29,332 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 11:37:29,333 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 11:37:29,334 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 11:37:29,335 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 11:37:29,342 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 11:37:29,392 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 11:37:29,392 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 11:37:29,394 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 11:37:29,394 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 11:37:29,394 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 11:37:29,395 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 11:37:29,395 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 11:37:29,395 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 11:37:29,395 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 11:37:29,396 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 11:37:29,396 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 11:37:29,396 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 11:37:29,396 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 11:37:29,396 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 11:37:29,397 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 11:37:29,397 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 11:37:29,397 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 11:37:29,397 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 11:37:29,398 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 11:37:29,398 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 11:37:29,398 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 11:37:29,398 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 11:37:29,399 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 11:37:29,399 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 11:37:29,399 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 11:37:29,399 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 11:37:29,400 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 11:37:29,400 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 11:37:29,400 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 11:37:29,400 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 11:37:29,813 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 11:37:29,856 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 11:37:29,860 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 11:37:29,861 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 11:37:29,861 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 11:37:29,862 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product19.cil.c [2020-10-29 11:37:29,955 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c21f33dfb/d6002e5eb3364b5ab7ef0b843dd4a1f8/FLAGd69eb7bf5 [2020-10-29 11:37:30,691 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 11:37:30,692 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product19.cil.c [2020-10-29 11:37:30,711 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c21f33dfb/d6002e5eb3364b5ab7ef0b843dd4a1f8/FLAGd69eb7bf5 [2020-10-29 11:37:30,927 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c21f33dfb/d6002e5eb3364b5ab7ef0b843dd4a1f8 [2020-10-29 11:37:30,931 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 11:37:30,937 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 11:37:30,940 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 11:37:30,940 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 11:37:30,948 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 11:37:30,950 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 11:37:30" (1/1) ... [2020-10-29 11:37:30,954 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ad7ab0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:37:30, skipping insertion in model container [2020-10-29 11:37:30,954 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 11:37:30" (1/1) ... [2020-10-29 11:37:30,964 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 11:37:31,024 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 11:37:31,395 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 11:37:31,422 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 11:37:31,596 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 11:37:31,643 INFO L208 MainTranslator]: Completed translation [2020-10-29 11:37:31,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:37:31 WrapperNode [2020-10-29 11:37:31,643 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 11:37:31,645 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 11:37:31,645 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 11:37:31,645 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 11:37:31,660 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:37:31" (1/1) ... [2020-10-29 11:37:31,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:37:31" (1/1) ... [2020-10-29 11:37:31,679 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:37:31" (1/1) ... [2020-10-29 11:37:31,680 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:37:31" (1/1) ... [2020-10-29 11:37:31,709 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:37:31" (1/1) ... [2020-10-29 11:37:31,719 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:37:31" (1/1) ... [2020-10-29 11:37:31,725 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:37:31" (1/1) ... [2020-10-29 11:37:31,739 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 11:37:31,743 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 11:37:31,743 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 11:37:31,743 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 11:37:31,745 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:37:31" (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 11:37:31,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 11:37:31,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 11:37:31,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-29 11:37:31,848 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 11:37:31,849 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-29 11:37:31,849 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-29 11:37:31,850 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-29 11:37:31,850 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-29 11:37:31,850 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-29 11:37:31,850 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-29 11:37:31,851 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-29 11:37:31,851 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-29 11:37:31,851 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-29 11:37:31,851 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-29 11:37:31,852 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-29 11:37:31,853 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-29 11:37:31,853 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-29 11:37:31,853 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-29 11:37:31,853 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-29 11:37:31,853 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-29 11:37:31,853 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 11:37:31,853 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-29 11:37:31,854 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-29 11:37:31,854 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-29 11:37:31,854 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-29 11:37:31,854 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-29 11:37:31,854 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-29 11:37:31,854 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-29 11:37:31,854 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-29 11:37:31,855 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-29 11:37:31,855 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-29 11:37:31,855 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-29 11:37:31,855 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-29 11:37:31,855 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-29 11:37:31,855 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-29 11:37:31,855 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-29 11:37:31,856 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-29 11:37:31,856 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-29 11:37:31,856 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-29 11:37:31,856 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 11:37:31,856 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 11:37:31,857 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 11:37:31,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 11:37:31,857 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 11:37:31,857 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-29 11:37:31,857 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-29 11:37:31,857 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-29 11:37:31,857 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-29 11:37:31,857 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-29 11:37:31,858 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-29 11:37:31,858 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-29 11:37:31,858 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-29 11:37:31,859 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-29 11:37:31,859 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-29 11:37:31,859 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-29 11:37:31,859 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-29 11:37:31,860 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-29 11:37:31,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-29 11:37:31,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-29 11:37:31,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 11:37:31,861 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-29 11:37:31,861 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-29 11:37:31,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 11:37:31,861 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-29 11:37:31,861 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-29 11:37:31,861 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 11:37:31,862 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-29 11:37:31,862 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-29 11:37:31,862 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-29 11:37:31,862 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-29 11:37:31,862 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-29 11:37:31,863 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-29 11:37:31,864 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-29 11:37:31,865 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-29 11:37:31,865 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-29 11:37:31,865 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-29 11:37:31,865 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-29 11:37:31,865 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-29 11:37:31,866 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 11:37:31,866 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-29 11:37:31,866 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-29 11:37:31,866 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-29 11:37:31,866 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-29 11:37:31,867 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-29 11:37:31,868 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-29 11:37:31,868 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-29 11:37:31,868 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-29 11:37:31,868 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-29 11:37:31,868 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-29 11:37:31,868 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 11:37:31,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 11:37:31,869 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 11:37:33,324 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 11:37:33,325 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-29 11:37:33,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 11:37:33 BoogieIcfgContainer [2020-10-29 11:37:33,328 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 11:37:33,330 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 11:37:33,330 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 11:37:33,334 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 11:37:33,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 11:37:30" (1/3) ... [2020-10-29 11:37:33,336 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24cce9dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 11:37:33, skipping insertion in model container [2020-10-29 11:37:33,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:37:31" (2/3) ... [2020-10-29 11:37:33,336 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24cce9dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 11:37:33, skipping insertion in model container [2020-10-29 11:37:33,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 11:37:33" (3/3) ... [2020-10-29 11:37:33,338 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product19.cil.c [2020-10-29 11:37:33,351 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 11:37:33,357 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-29 11:37:33,372 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-29 11:37:33,409 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 11:37:33,409 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 11:37:33,410 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 11:37:33,410 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 11:37:33,410 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 11:37:33,410 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 11:37:33,410 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 11:37:33,410 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 11:37:33,434 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states. [2020-10-29 11:37:33,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-29 11:37:33,445 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 11:37:33,446 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] [2020-10-29 11:37:33,446 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 11:37:33,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 11:37:33,453 INFO L82 PathProgramCache]: Analyzing trace with hash -1072696823, now seen corresponding path program 1 times [2020-10-29 11:37:33,462 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 11:37:33,463 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1918071897] [2020-10-29 11:37:33,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 11:37:33,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:33,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:34,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:34,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:37,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:37,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-29 11:37:37,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 11:37:37,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3298 [2020-10-29 11:37:37,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:37,090 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:37,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 11:37:37,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:37:37,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-29 11:37:37,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 11:37:37,617 WARN L193 SmtUtils]: Spent 430.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-29 11:37:37,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 11:37:37,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:37,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:37,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:37,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:37:37,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:37,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-10-29 11:37:37,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:37,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:37,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:37:37,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:37:37,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 11:37:37,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:37:37,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 11:37:37,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:37,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:37,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:37,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:37:37,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:37,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:37:37,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:37,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:37,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:37:37,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:37:37,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:37:37,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:37:37,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 11:37:37,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:37,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:37,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:37,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:37:37,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:37,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 11:37:37,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:37,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:37,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:37:37,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:37:37,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:37:37,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:37:37,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 11:37:37,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:37,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:37,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:37,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:37:37,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:37,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 11:37:37,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:37,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:37,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:37:37,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:37:37,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:37:37,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:37:37,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 11:37:37,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:37,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:37,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:37,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:37:37,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:37,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 11:37:37,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:37,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:37,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:37:37,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:37:37,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:37:37,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:37:37,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-29 11:37:37,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:37,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:37,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:37,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:37:37,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:37,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:37:37,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:37,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:37,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:37:37,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:37:37,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:37:37,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:37:37,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-29 11:37:37,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:37,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:37,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:37,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:37:37,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:37,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:37:37,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:37,886 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:37,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:37:37,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:37:37,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:37:37,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:37:37,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-29 11:37:37,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:37,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:37,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:37,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:37:37,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:37,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:37:37,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:37,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:37,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:37:37,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:37:37,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:37:37,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:37:37,913 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 11:37:37,914 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1918071897] [2020-10-29 11:37:37,916 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 11:37:37,917 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 11:37:37,917 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428400017] [2020-10-29 11:37:37,924 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 11:37:37,924 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 11:37:37,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 11:37:37,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 11:37:37,943 INFO L87 Difference]: Start difference. First operand 166 states. Second operand 4 states. [2020-10-29 11:37:38,577 WARN L193 SmtUtils]: Spent 473.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:37:40,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 11:37:40,969 INFO L93 Difference]: Finished difference Result 400 states and 534 transitions. [2020-10-29 11:37:40,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 11:37:40,971 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-10-29 11:37:40,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 11:37:40,988 INFO L225 Difference]: With dead ends: 400 [2020-10-29 11:37:40,989 INFO L226 Difference]: Without dead ends: 258 [2020-10-29 11:37:40,994 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-29 11:37:41,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2020-10-29 11:37:41,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 203. [2020-10-29 11:37:41,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2020-10-29 11:37:41,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 244 transitions. [2020-10-29 11:37:41,144 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 244 transitions. Word has length 53 [2020-10-29 11:37:41,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 11:37:41,145 INFO L481 AbstractCegarLoop]: Abstraction has 203 states and 244 transitions. [2020-10-29 11:37:41,145 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 11:37:41,145 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 244 transitions. [2020-10-29 11:37:41,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-29 11:37:41,149 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 11:37:41,149 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 11:37:41,150 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 11:37:41,150 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 11:37:41,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 11:37:41,151 INFO L82 PathProgramCache]: Analyzing trace with hash 362852608, now seen corresponding path program 1 times [2020-10-29 11:37:41,151 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 11:37:41,151 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [481005356] [2020-10-29 11:37:41,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 11:37:41,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:41,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:42,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:42,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-29 11:37:42,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:42,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1029 [2020-10-29 11:37:42,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:42,220 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:42,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-29 11:37:42,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:37:42,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-29 11:37:42,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:37:42,665 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-29 11:37:42,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 11:37:42,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:42,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:42,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:42,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:37:42,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:42,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-29 11:37:42,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:42,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:42,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:37:42,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:37:42,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 11:37:42,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:37:42,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 11:37:42,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:42,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:42,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:42,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:37:42,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:42,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:37:42,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:42,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:42,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:37:42,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:37:42,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:37:42,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:37:42,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 11:37:42,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:42,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:42,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:42,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:37:42,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:42,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:37:42,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:42,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:42,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:37:42,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:37:42,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:37:42,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:37:42,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 11:37:42,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:42,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:42,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:42,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:37:42,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:42,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:37:42,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:42,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:42,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:37:42,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:37:42,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:37:42,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:37:42,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 11:37:42,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:42,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:42,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:42,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:37:42,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:42,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:37:42,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:42,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:42,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:37:42,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:37:42,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:37:42,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:37:42,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-29 11:37:42,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:42,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:42,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:42,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-29 11:37:42,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:42,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 11:37:42,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:42,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:42,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:37:42,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:37:42,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 11:37:42,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:37:42,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 11:37:42,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:42,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:42,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:42,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:37:42,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:42,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:37:42,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:42,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:42,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:37:42,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:37:42,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:37:42,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:37:42,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-29 11:37:42,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:42,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:42,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:42,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:37:42,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:42,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:37:42,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:42,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:42,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:37:42,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:37:42,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:37:42,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:37:42,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-29 11:37:42,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:42,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:42,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:42,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:37:42,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:42,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 11:37:42,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:42,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:42,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 11:37:42,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:37:42,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:37:42,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:37:42,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-29 11:37:42,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:42,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:42,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:42,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:37:42,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:42,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:37:42,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:42,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:42,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:37:42,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:37:42,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:37:42,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:37:42,899 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 11:37:42,899 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [481005356] [2020-10-29 11:37:42,900 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 11:37:42,900 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-29 11:37:42,900 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187492524] [2020-10-29 11:37:42,902 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 11:37:42,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 11:37:42,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 11:37:42,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-29 11:37:42,903 INFO L87 Difference]: Start difference. First operand 203 states and 244 transitions. Second operand 8 states. [2020-10-29 11:37:43,521 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:37:44,894 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-29 11:37:46,286 WARN L193 SmtUtils]: Spent 766.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 206 [2020-10-29 11:37:46,794 WARN L193 SmtUtils]: Spent 400.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:37:47,233 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:37:48,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 11:37:48,613 INFO L93 Difference]: Finished difference Result 699 states and 967 transitions. [2020-10-29 11:37:48,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-29 11:37:48,616 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 66 [2020-10-29 11:37:48,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 11:37:48,626 INFO L225 Difference]: With dead ends: 699 [2020-10-29 11:37:48,627 INFO L226 Difference]: Without dead ends: 520 [2020-10-29 11:37:48,630 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-10-29 11:37:48,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2020-10-29 11:37:48,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 384. [2020-10-29 11:37:48,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 384 states. [2020-10-29 11:37:48,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 476 transitions. [2020-10-29 11:37:48,765 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 476 transitions. Word has length 66 [2020-10-29 11:37:48,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 11:37:48,766 INFO L481 AbstractCegarLoop]: Abstraction has 384 states and 476 transitions. [2020-10-29 11:37:48,766 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 11:37:48,766 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 476 transitions. [2020-10-29 11:37:48,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-10-29 11:37:48,771 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 11:37:48,771 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 11:37:48,771 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 11:37:48,772 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 11:37:48,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 11:37:48,772 INFO L82 PathProgramCache]: Analyzing trace with hash -562904550, now seen corresponding path program 1 times [2020-10-29 11:37:48,773 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 11:37:48,773 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1713708210] [2020-10-29 11:37:48,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 11:37:48,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:48,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:49,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:49,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:50,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:53,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:53,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-29 11:37:53,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 11:37:53,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-29 11:37:53,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:53,810 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:53,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-29 11:37:53,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:37:53,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-29 11:37:53,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:37:54,282 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-29 11:37:54,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 11:37:54,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:54,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:54,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:54,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:37:54,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:54,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-29 11:37:54,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:54,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:54,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:37:54,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:37:54,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 11:37:54,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:37:54,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 11:37:54,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:54,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:54,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:54,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:37:54,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:54,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:37:54,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:54,396 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:54,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:37:54,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:37:54,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:37:54,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:37:54,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 11:37:54,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:54,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:54,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:54,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:37:54,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:54,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:37:54,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:54,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:54,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:37:54,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:37:54,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:37:54,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:37:54,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 11:37:54,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:54,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:54,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:54,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:37:54,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:54,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:37:54,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:54,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:54,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:37:54,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:37:54,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:37:54,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:37:54,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 11:37:54,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:54,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:54,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:54,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:37:54,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:54,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:37:54,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:54,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:54,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:37:54,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:37:54,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:37:54,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:37:54,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-29 11:37:54,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:54,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:54,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:54,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:37:54,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:54,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 11:37:54,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:54,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:54,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 11:37:54,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 11:37:54,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 11:37:54,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:37:54,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-29 11:37:54,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:54,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:54,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:54,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-29 11:37:54,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:54,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 11:37:54,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:54,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:54,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:37:54,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:37:54,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 11:37:54,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:37:54,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 11:37:54,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:54,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:54,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:54,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:37:54,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:54,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:37:54,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:54,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:54,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:37:54,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:37:54,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:37:54,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:37:54,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-29 11:37:54,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:54,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:54,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:54,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:37:54,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:54,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:37:54,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:54,499 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:54,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:37:54,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:37:54,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:37:54,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:37:54,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-29 11:37:54,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:54,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:54,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:54,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:37:54,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:54,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 11:37:54,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:54,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:54,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 11:37:54,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:37:54,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:37:54,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:37:54,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-29 11:37:54,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:54,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:54,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:54,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:37:54,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:54,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:37:54,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:54,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:54,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:37:54,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:37:54,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:37:54,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:37:54,549 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 11:37:54,550 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1713708210] [2020-10-29 11:37:54,550 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 11:37:54,551 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-29 11:37:54,551 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538126849] [2020-10-29 11:37:54,553 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-29 11:37:54,554 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 11:37:54,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-29 11:37:54,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-10-29 11:37:54,555 INFO L87 Difference]: Start difference. First operand 384 states and 476 transitions. Second operand 11 states. [2020-10-29 11:37:55,212 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:37:56,276 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:37:57,862 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:37:58,528 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:37:59,100 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:37:59,536 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:37:59,969 WARN L193 SmtUtils]: Spent 395.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:38:01,125 WARN L193 SmtUtils]: Spent 745.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 205 [2020-10-29 11:38:03,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 11:38:03,613 INFO L93 Difference]: Finished difference Result 1007 states and 1511 transitions. [2020-10-29 11:38:03,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-29 11:38:03,614 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 70 [2020-10-29 11:38:03,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 11:38:03,623 INFO L225 Difference]: With dead ends: 1007 [2020-10-29 11:38:03,623 INFO L226 Difference]: Without dead ends: 721 [2020-10-29 11:38:03,628 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=158, Invalid=492, Unknown=0, NotChecked=0, Total=650 [2020-10-29 11:38:03,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 721 states. [2020-10-29 11:38:03,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 721 to 495. [2020-10-29 11:38:03,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 495 states. [2020-10-29 11:38:03,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 601 transitions. [2020-10-29 11:38:03,795 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 601 transitions. Word has length 70 [2020-10-29 11:38:03,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 11:38:03,796 INFO L481 AbstractCegarLoop]: Abstraction has 495 states and 601 transitions. [2020-10-29 11:38:03,796 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-29 11:38:03,796 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 601 transitions. [2020-10-29 11:38:03,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-29 11:38:03,800 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 11:38:03,800 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 11:38:03,800 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 11:38:03,800 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 11:38:03,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 11:38:03,801 INFO L82 PathProgramCache]: Analyzing trace with hash 1329471921, now seen corresponding path program 1 times [2020-10-29 11:38:03,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 11:38:03,802 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [603994816] [2020-10-29 11:38:03,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 11:38:03,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-29 11:38:03,844 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-29 11:38:03,844 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-29 11:38:03,849 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 11:38:03,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 11:38:03 BoogieIcfgContainer [2020-10-29 11:38:03,872 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-29 11:38:03,874 INFO L168 Benchmark]: Toolchain (without parser) took 32941.54 ms. Allocated memory was 151.0 MB in the beginning and 488.6 MB in the end (delta: 337.6 MB). Free memory was 125.2 MB in the beginning and 345.0 MB in the end (delta: -219.9 MB). Peak memory consumption was 118.8 MB. Max. memory is 8.0 GB. [2020-10-29 11:38:03,875 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 151.0 MB. Free memory was 123.8 MB in the beginning and 123.7 MB in the end (delta: 102.4 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 11:38:03,876 INFO L168 Benchmark]: CACSL2BoogieTranslator took 704.50 ms. Allocated memory is still 151.0 MB. Free memory was 124.6 MB in the beginning and 103.9 MB in the end (delta: 20.8 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-10-29 11:38:03,877 INFO L168 Benchmark]: Boogie Preprocessor took 96.42 ms. Allocated memory is still 151.0 MB. Free memory was 103.7 MB in the beginning and 99.9 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-29 11:38:03,878 INFO L168 Benchmark]: RCFGBuilder took 1585.01 ms. Allocated memory is still 151.0 MB. Free memory was 99.9 MB in the beginning and 127.9 MB in the end (delta: -28.0 MB). Peak memory consumption was 56.0 MB. Max. memory is 8.0 GB. [2020-10-29 11:38:03,879 INFO L168 Benchmark]: TraceAbstraction took 30542.71 ms. Allocated memory was 151.0 MB in the beginning and 488.6 MB in the end (delta: 337.6 MB). Free memory was 127.3 MB in the beginning and 345.6 MB in the end (delta: -218.2 MB). Peak memory consumption was 118.9 MB. Max. memory is 8.0 GB. [2020-10-29 11:38:03,882 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 151.0 MB. Free memory was 123.8 MB in the beginning and 123.7 MB in the end (delta: 102.4 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 704.50 ms. Allocated memory is still 151.0 MB. Free memory was 124.6 MB in the beginning and 103.9 MB in the end (delta: 20.8 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 96.42 ms. Allocated memory is still 151.0 MB. Free memory was 103.7 MB in the beginning and 99.9 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1585.01 ms. Allocated memory is still 151.0 MB. Free memory was 99.9 MB in the beginning and 127.9 MB in the end (delta: -28.0 MB). Peak memory consumption was 56.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 30542.71 ms. Allocated memory was 151.0 MB in the beginning and 488.6 MB in the end (delta: 337.6 MB). Free memory was 127.3 MB in the beginning and 345.6 MB in the end (delta: -218.2 MB). Peak memory consumption was 118.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L295] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L492] int cleanupTimeShifts = 4; [L596] int waterLevel = 1; [L597] int methaneLevelCritical = 0; [L755] int pumpRunning = 0; [L756] int systemActive = 1; [L570] int retValue_acc ; [L571] int tmp ; [L575] FCALL select_helpers() [L576] FCALL select_features() [L577] CALL, EXPR valid_product() [L80] int retValue_acc ; [L83] retValue_acc = 1 [L84] return (retValue_acc); [L577] RET, EXPR valid_product() [L577] tmp = valid_product() [L579] COND TRUE \read(tmp) [L581] FCALL setup() [L582] CALL runTest() [L564] CALL test() [L687] int splverifierCounter ; [L688] int tmp ; [L689] int tmp___0 ; [L690] int tmp___1 ; [L691] int tmp___2 ; [L694] splverifierCounter = 0 [L696] COND TRUE 1 [L698] COND TRUE splverifierCounter < 4 [L704] tmp = __VERIFIER_nondet_int() [L706] COND TRUE \read(tmp) [L708] CALL waterRise() [L614] COND TRUE waterLevel < 2 [L615] waterLevel = waterLevel + 1 [L708] RET waterRise() [L714] tmp___0 = __VERIFIER_nondet_int() [L716] COND FALSE !(\read(tmp___0)) [L724] tmp___2 = __VERIFIER_nondet_int() [L726] COND FALSE !(\read(tmp___2)) [L730] tmp___1 = __VERIFIER_nondet_int() [L732] COND TRUE \read(tmp___1) [L734] CALL stopSystem() [L910] COND FALSE !(\read(pumpRunning)) [L917] systemActive = 0 [L734] RET stopSystem() [L741] CALL timeShift() [L762] COND FALSE !(\read(pumpRunning)) [L769] COND FALSE !(\read(systemActive)) [L777] CALL __utac_acc__Specification3_spec__1() [L93] int tmp ; [L94] int tmp___0 ; [L95] int tmp___1 ; [L99] CALL, EXPR isMethaneLevelCritical() [L635] int retValue_acc ; [L638] retValue_acc = methaneLevelCritical [L639] return (retValue_acc); [L99] RET, EXPR isMethaneLevelCritical() [L99] tmp = isMethaneLevelCritical() [L101] COND FALSE !(\read(tmp)) [L105] CALL, EXPR getWaterLevel() [L667] int retValue_acc ; [L670] retValue_acc = waterLevel [L671] return (retValue_acc); [L105] RET, EXPR getWaterLevel() [L105] tmp___0 = getWaterLevel() [L107] COND TRUE tmp___0 == 2 [L109] CALL, EXPR isPumpRunning() [L843] int retValue_acc ; [L846] retValue_acc = pumpRunning [L847] return (retValue_acc); [L109] RET, EXPR isPumpRunning() [L109] tmp___1 = isPumpRunning() [L111] COND FALSE !(\read(tmp___1)) [L115] CALL __automaton_fail() [L46] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product19.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 235 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 30.4s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 17.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 420 SDtfs, 936 SDslu, 573 SDs, 0 SdLazy, 2837 SolverSat, 640 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 109 GetRequests, 68 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 7.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=495occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 3 MinimizatonAttempts, 417 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 11.5s InterpolantComputationTime, 257 NumberOfCodeBlocks, 257 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 186 ConstructedInterpolants, 0 QuantifiedInterpolants, 62592 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 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...