/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_product01.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 11:36:09,074 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 11:36:09,077 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 11:36:09,113 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 11:36:09,113 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 11:36:09,115 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 11:36:09,116 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 11:36:09,119 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 11:36:09,121 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 11:36:09,122 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 11:36:09,123 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 11:36:09,125 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 11:36:09,125 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 11:36:09,126 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 11:36:09,127 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 11:36:09,129 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 11:36:09,130 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 11:36:09,131 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 11:36:09,133 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 11:36:09,135 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 11:36:09,137 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 11:36:09,138 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 11:36:09,140 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 11:36:09,141 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 11:36:09,144 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 11:36:09,144 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 11:36:09,145 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 11:36:09,146 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 11:36:09,146 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 11:36:09,148 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 11:36:09,148 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 11:36:09,149 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 11:36:09,150 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 11:36:09,151 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 11:36:09,165 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 11:36:09,165 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 11:36:09,166 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 11:36:09,167 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 11:36:09,167 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 11:36:09,168 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 11:36:09,169 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 11:36:09,170 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 11:36:09,198 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 11:36:09,198 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 11:36:09,199 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 11:36:09,200 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 11:36:09,200 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 11:36:09,200 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 11:36:09,200 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 11:36:09,201 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 11:36:09,201 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 11:36:09,201 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 11:36:09,201 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 11:36:09,202 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 11:36:09,202 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 11:36:09,202 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 11:36:09,202 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 11:36:09,203 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 11:36:09,203 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 11:36:09,203 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 11:36:09,203 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 11:36:09,204 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 11:36:09,204 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 11:36:09,204 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 11:36:09,205 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 11:36:09,205 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 11:36:09,205 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 11:36:09,205 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 11:36:09,206 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 11:36:09,206 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 11:36:09,206 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 11:36:09,206 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 11:36:09,559 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 11:36:09,583 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 11:36:09,586 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 11:36:09,587 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 11:36:09,588 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 11:36:09,591 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product01.cil.c [2020-10-29 11:36:09,673 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/49b609878/bcbca424ae50405ba1ecb7cb18e12d28/FLAG8ae0e4e80 [2020-10-29 11:36:10,352 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 11:36:10,353 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product01.cil.c [2020-10-29 11:36:10,368 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/49b609878/bcbca424ae50405ba1ecb7cb18e12d28/FLAG8ae0e4e80 [2020-10-29 11:36:10,615 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/49b609878/bcbca424ae50405ba1ecb7cb18e12d28 [2020-10-29 11:36:10,618 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 11:36:10,629 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 11:36:10,631 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 11:36:10,631 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 11:36:10,635 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 11:36:10,636 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 11:36:10" (1/1) ... [2020-10-29 11:36:10,641 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62d95165 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:36:10, skipping insertion in model container [2020-10-29 11:36:10,642 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 11:36:10" (1/1) ... [2020-10-29 11:36:10,650 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 11:36:10,726 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 11:36:10,986 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 11:36:10,998 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 11:36:11,110 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 11:36:11,149 INFO L208 MainTranslator]: Completed translation [2020-10-29 11:36:11,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:36:11 WrapperNode [2020-10-29 11:36:11,150 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 11:36:11,151 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 11:36:11,151 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 11:36:11,152 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 11:36:11,169 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:36:11" (1/1) ... [2020-10-29 11:36:11,169 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:36:11" (1/1) ... [2020-10-29 11:36:11,207 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:36:11" (1/1) ... [2020-10-29 11:36:11,207 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:36:11" (1/1) ... [2020-10-29 11:36:11,291 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:36:11" (1/1) ... [2020-10-29 11:36:11,305 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:36:11" (1/1) ... [2020-10-29 11:36:11,329 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:36:11" (1/1) ... [2020-10-29 11:36:11,340 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 11:36:11,347 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 11:36:11,348 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 11:36:11,348 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 11:36:11,349 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:36:11" (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 11:36:11,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 11:36:11,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 11:36:11,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-29 11:36:11,421 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 11:36:11,422 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-29 11:36:11,422 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-29 11:36:11,422 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-29 11:36:11,422 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-29 11:36:11,422 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-29 11:36:11,423 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-29 11:36:11,423 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-29 11:36:11,423 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-29 11:36:11,423 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-29 11:36:11,423 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-29 11:36:11,423 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-29 11:36:11,424 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-29 11:36:11,424 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-29 11:36:11,424 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-29 11:36:11,424 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-29 11:36:11,424 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-29 11:36:11,424 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-29 11:36:11,425 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-29 11:36:11,425 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 11:36:11,425 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-29 11:36:11,425 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-29 11:36:11,425 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-29 11:36:11,425 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-29 11:36:11,425 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-29 11:36:11,426 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-29 11:36:11,426 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-29 11:36:11,426 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-29 11:36:11,426 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-29 11:36:11,426 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-29 11:36:11,426 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-29 11:36:11,426 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-29 11:36:11,427 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 11:36:11,427 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 11:36:11,427 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 11:36:11,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 11:36:11,427 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 11:36:11,427 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-29 11:36:11,427 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-29 11:36:11,428 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-29 11:36:11,428 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-29 11:36:11,428 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-29 11:36:11,428 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-29 11:36:11,428 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-29 11:36:11,428 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-29 11:36:11,428 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-29 11:36:11,429 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-29 11:36:11,429 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-29 11:36:11,429 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-29 11:36:11,429 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-29 11:36:11,429 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-29 11:36:11,429 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-29 11:36:11,429 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-29 11:36:11,430 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-29 11:36:11,430 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-29 11:36:11,430 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-29 11:36:11,430 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-29 11:36:11,430 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-29 11:36:11,430 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-29 11:36:11,430 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-29 11:36:11,431 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-29 11:36:11,431 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-29 11:36:11,431 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 11:36:11,431 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-29 11:36:11,431 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-29 11:36:11,431 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-29 11:36:11,431 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-29 11:36:11,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-29 11:36:11,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 11:36:11,432 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-29 11:36:11,432 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-29 11:36:11,432 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 11:36:11,432 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-29 11:36:11,433 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-29 11:36:11,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 11:36:11,433 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-29 11:36:11,433 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-29 11:36:11,433 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-29 11:36:11,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 11:36:11,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 11:36:11,434 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 11:36:12,706 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 11:36:12,707 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-29 11:36:12,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 11:36:12 BoogieIcfgContainer [2020-10-29 11:36:12,709 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 11:36:12,711 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 11:36:12,711 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 11:36:12,714 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 11:36:12,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 11:36:10" (1/3) ... [2020-10-29 11:36:12,715 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37b17f8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 11:36:12, skipping insertion in model container [2020-10-29 11:36:12,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:36:11" (2/3) ... [2020-10-29 11:36:12,716 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37b17f8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 11:36:12, skipping insertion in model container [2020-10-29 11:36:12,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 11:36:12" (3/3) ... [2020-10-29 11:36:12,718 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product01.cil.c [2020-10-29 11:36:12,729 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 11:36:12,734 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-29 11:36:12,747 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-29 11:36:12,774 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 11:36:12,775 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 11:36:12,775 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 11:36:12,775 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 11:36:12,775 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 11:36:12,775 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 11:36:12,775 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 11:36:12,775 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 11:36:12,796 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states. [2020-10-29 11:36:12,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-29 11:36:12,805 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 11:36:12,806 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 11:36:12,807 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 11:36:12,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 11:36:12,819 INFO L82 PathProgramCache]: Analyzing trace with hash -1411659746, now seen corresponding path program 1 times [2020-10-29 11:36:12,830 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 11:36:12,830 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [140373023] [2020-10-29 11:36:12,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 11:36:13,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:13,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:13,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:13,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:16,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:16,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-29 11:36:16,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 11:36:16,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2900 [2020-10-29 11:36:16,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:16,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:16,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:36:16,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:36:16,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-29 11:36:16,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-29 11:36:16,503 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-29 11:36:16,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 11:36:16,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:16,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:16,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:16,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:36:16,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:36:16,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-10-29 11:36:16,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:16,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:16,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:36:16,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:36:16,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 11:36:16,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-10-29 11:36:16,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 11:36:16,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:16,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:16,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:16,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:36:16,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:36:16,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:36:16,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:16,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:16,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:36:16,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:36:16,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:36:16,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:36:16,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 11:36:16,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:16,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:16,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:16,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:36:16,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:36:16,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:36:16,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:16,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:16,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:36:16,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:36:16,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:36:16,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:36:16,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 11:36:16,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:16,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:16,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:16,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:36:16,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:36:16,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 11:36:16,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:16,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:16,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:36:16,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:36:16,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:36:16,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:36:16,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 11:36:16,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:16,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:16,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:16,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:36:16,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:36:16,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 11:36:16,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:16,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:16,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:36:16,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:36:16,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:36:16,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:36:16,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-29 11:36:16,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:16,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:16,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:16,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:36:16,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:36:16,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 11:36:16,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:16,759 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:16,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:36:16,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:36:16,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:36:16,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:36:16,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-29 11:36:16,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:16,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:16,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:16,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:36:16,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:36:16,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 11:36:16,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:16,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:16,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:36:16,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:36:16,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:36:16,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:36:16,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-29 11:36:16,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:16,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:16,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:16,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:36:16,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:36:16,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:36:16,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:16,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:16,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:36:16,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:36:16,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:36:16,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:36:16,796 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 11:36:16,797 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [140373023] [2020-10-29 11:36:16,799 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 11:36:16,799 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 11:36:16,800 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070866651] [2020-10-29 11:36:16,805 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 11:36:16,805 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 11:36:16,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 11:36:16,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 11:36:16,821 INFO L87 Difference]: Start difference. First operand 137 states. Second operand 4 states. [2020-10-29 11:36:17,275 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:36:18,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 11:36:18,172 INFO L93 Difference]: Finished difference Result 216 states and 290 transitions. [2020-10-29 11:36:18,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 11:36:18,175 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-10-29 11:36:18,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 11:36:18,187 INFO L225 Difference]: With dead ends: 216 [2020-10-29 11:36:18,187 INFO L226 Difference]: Without dead ends: 116 [2020-10-29 11:36:18,191 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-29 11:36:18,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-10-29 11:36:18,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 88. [2020-10-29 11:36:18,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2020-10-29 11:36:18,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 101 transitions. [2020-10-29 11:36:18,275 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 101 transitions. Word has length 53 [2020-10-29 11:36:18,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 11:36:18,275 INFO L481 AbstractCegarLoop]: Abstraction has 88 states and 101 transitions. [2020-10-29 11:36:18,275 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 11:36:18,275 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 101 transitions. [2020-10-29 11:36:18,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-29 11:36:18,278 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 11:36:18,279 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] [2020-10-29 11:36:18,279 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 11:36:18,279 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 11:36:18,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 11:36:18,280 INFO L82 PathProgramCache]: Analyzing trace with hash 550954580, now seen corresponding path program 1 times [2020-10-29 11:36:18,280 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 11:36:18,280 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [623067472] [2020-10-29 11:36:18,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 11:36:18,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:18,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:18,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:20,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:20,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-29 11:36:20,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 11:36:20,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2408 [2020-10-29 11:36:20,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:20,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:20,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-29 11:36:20,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:36:20,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-29 11:36:20,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:36:21,057 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-29 11:36:21,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 11:36:21,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:21,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:21,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:21,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:36:21,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:36:21,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-29 11:36:21,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:21,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:21,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:36:21,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:36:21,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 11:36:21,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:36:21,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 11:36:21,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:21,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:21,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:21,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:36:21,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:36:21,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:36:21,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:21,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:21,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:36:21,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:36:21,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:36:21,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:36:21,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 11:36:21,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:21,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:21,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:21,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:36:21,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:36:21,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:36:21,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:21,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:21,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:36:21,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:36:21,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:36:21,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:36:21,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 11:36:21,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:21,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:21,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:21,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:36:21,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:36:21,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:36:21,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:21,216 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:21,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:36:21,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:36:21,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:36:21,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:36:21,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 11:36:21,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:21,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:21,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:21,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:36:21,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:36:21,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:36:21,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:21,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:21,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:36:21,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:36:21,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:36:21,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:36:21,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-29 11:36:21,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:21,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:21,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:21,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:36:21,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:36:21,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:36:21,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:21,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:21,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:36:21,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:36:21,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:36:21,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:36:21,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-29 11:36:21,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:21,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:21,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:21,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:36:21,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:36:21,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:36:21,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:21,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:21,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:36:21,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:36:21,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:36:21,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:36:21,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-29 11:36:21,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:21,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:21,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:21,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:36:21,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:36:21,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 11:36:21,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:21,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:21,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 11:36:21,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:36:21,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:36:21,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:36:21,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-29 11:36:21,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:21,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:21,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:21,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:36:21,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:36:21,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:36:21,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:21,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:21,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:36:21,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:36:21,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:36:21,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:36:21,298 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 11:36:21,298 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [623067472] [2020-10-29 11:36:21,298 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 11:36:21,298 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-29 11:36:21,300 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596908866] [2020-10-29 11:36:21,302 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 11:36:21,302 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 11:36:21,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 11:36:21,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-29 11:36:21,303 INFO L87 Difference]: Start difference. First operand 88 states and 101 transitions. Second operand 7 states. [2020-10-29 11:36:21,761 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:36:22,703 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:36:23,044 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-29 11:36:23,354 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-29 11:36:23,638 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:36:24,019 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:36:24,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 11:36:24,510 INFO L93 Difference]: Finished difference Result 234 states and 302 transitions. [2020-10-29 11:36:24,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 11:36:24,511 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 57 [2020-10-29 11:36:24,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 11:36:24,515 INFO L225 Difference]: With dead ends: 234 [2020-10-29 11:36:24,515 INFO L226 Difference]: Without dead ends: 170 [2020-10-29 11:36:24,517 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2020-10-29 11:36:24,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2020-10-29 11:36:24,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 147. [2020-10-29 11:36:24,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2020-10-29 11:36:24,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 179 transitions. [2020-10-29 11:36:24,584 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 179 transitions. Word has length 57 [2020-10-29 11:36:24,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 11:36:24,584 INFO L481 AbstractCegarLoop]: Abstraction has 147 states and 179 transitions. [2020-10-29 11:36:24,584 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 11:36:24,584 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 179 transitions. [2020-10-29 11:36:24,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-10-29 11:36:24,588 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 11:36:24,588 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] [2020-10-29 11:36:24,588 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 11:36:24,588 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 11:36:24,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 11:36:24,589 INFO L82 PathProgramCache]: Analyzing trace with hash -1200687814, now seen corresponding path program 1 times [2020-10-29 11:36:24,589 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 11:36:24,589 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1285319162] [2020-10-29 11:36:24,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 11:36:24,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:24,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:24,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:24,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:26,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:28,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:28,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-29 11:36:28,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 11:36:28,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3427 [2020-10-29 11:36:28,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:28,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:28,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-29 11:36:28,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:36:28,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-29 11:36:28,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:36:28,378 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-29 11:36:28,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 11:36:28,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:28,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:28,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:28,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:36:28,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:36:28,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-29 11:36:28,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:28,472 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:28,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:36:28,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:36:28,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 11:36:28,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:36:28,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 11:36:28,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:28,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:28,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:28,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:36:28,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:36:28,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:36:28,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:28,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:28,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:36:28,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:36:28,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:36:28,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:36:28,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 11:36:28,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:28,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:28,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:28,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:36:28,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:36:28,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:36:28,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:28,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:28,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:36:28,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:36:28,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:36:28,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:36:28,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 11:36:28,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:28,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:28,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:28,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:36:28,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:36:28,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:36:28,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:28,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:28,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:36:28,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:36:28,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:36:28,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:36:28,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 11:36:28,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:28,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:28,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:28,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:36:28,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:36:28,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:36:28,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:28,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:28,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:36:28,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:36:28,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:36:28,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:36:28,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-29 11:36:28,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:28,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:28,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:28,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:36:28,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:36:28,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 11:36:28,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:28,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:28,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 11:36:28,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 11:36:28,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 11:36:28,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:36:28,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-29 11:36:28,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:28,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:28,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:28,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:36:28,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:36:28,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:36:28,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:28,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:28,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:36:28,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:36:28,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:36:28,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:36:28,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-29 11:36:28,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:28,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:28,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:28,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:36:28,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:36:28,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:36:28,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:28,571 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:28,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:36:28,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:36:28,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:36:28,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:36:28,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-29 11:36:28,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:28,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:28,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:28,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:36:28,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:36:28,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 11:36:28,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:28,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:28,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 11:36:28,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:36:28,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:36:28,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:36:28,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-29 11:36:28,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:28,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:28,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:28,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:36:28,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:36:28,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:36:28,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:28,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:28,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:36:28,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:36:28,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:36:28,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:36:28,615 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 11:36:28,616 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1285319162] [2020-10-29 11:36:28,616 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 11:36:28,616 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-29 11:36:28,616 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009397031] [2020-10-29 11:36:28,617 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-29 11:36:28,617 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 11:36:28,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-29 11:36:28,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-10-29 11:36:28,618 INFO L87 Difference]: Start difference. First operand 147 states and 179 transitions. Second operand 10 states. [2020-10-29 11:36:29,156 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:36:29,989 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:36:30,592 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:36:31,075 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:36:31,400 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:36:31,703 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:36:32,012 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:36:33,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 11:36:33,053 INFO L93 Difference]: Finished difference Result 317 states and 429 transitions. [2020-10-29 11:36:33,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-29 11:36:33,053 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 61 [2020-10-29 11:36:33,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 11:36:33,057 INFO L225 Difference]: With dead ends: 317 [2020-10-29 11:36:33,057 INFO L226 Difference]: Without dead ends: 218 [2020-10-29 11:36:33,059 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=81, Invalid=299, Unknown=0, NotChecked=0, Total=380 [2020-10-29 11:36:33,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-10-29 11:36:33,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 179. [2020-10-29 11:36:33,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2020-10-29 11:36:33,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 211 transitions. [2020-10-29 11:36:33,118 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 211 transitions. Word has length 61 [2020-10-29 11:36:33,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 11:36:33,119 INFO L481 AbstractCegarLoop]: Abstraction has 179 states and 211 transitions. [2020-10-29 11:36:33,119 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-29 11:36:33,119 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 211 transitions. [2020-10-29 11:36:33,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-29 11:36:33,122 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 11:36:33,122 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] [2020-10-29 11:36:33,122 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 11:36:33,123 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 11:36:33,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 11:36:33,123 INFO L82 PathProgramCache]: Analyzing trace with hash 337881242, now seen corresponding path program 1 times [2020-10-29 11:36:33,123 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 11:36:33,124 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1284393135] [2020-10-29 11:36:33,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 11:36:33,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-29 11:36:33,167 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-29 11:36:33,168 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-29 11:36:33,172 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 11:36:33,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 11:36:33 BoogieIcfgContainer [2020-10-29 11:36:33,193 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-29 11:36:33,195 INFO L168 Benchmark]: Toolchain (without parser) took 22571.48 ms. Allocated memory was 158.3 MB in the beginning and 494.9 MB in the end (delta: 336.6 MB). Free memory was 133.6 MB in the beginning and 262.1 MB in the end (delta: -128.6 MB). Peak memory consumption was 208.8 MB. Max. memory is 8.0 GB. [2020-10-29 11:36:33,196 INFO L168 Benchmark]: CDTParser took 0.52 ms. Allocated memory is still 125.8 MB. Free memory was 100.4 MB in the beginning and 100.4 MB in the end (delta: 65.6 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 11:36:33,197 INFO L168 Benchmark]: CACSL2BoogieTranslator took 519.77 ms. Allocated memory is still 158.3 MB. Free memory was 132.9 MB in the beginning and 113.1 MB in the end (delta: 19.8 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2020-10-29 11:36:33,197 INFO L168 Benchmark]: Boogie Preprocessor took 189.36 ms. Allocated memory is still 158.3 MB. Free memory was 113.1 MB in the beginning and 140.4 MB in the end (delta: -27.2 MB). Peak memory consumption was 5.3 MB. Max. memory is 8.0 GB. [2020-10-29 11:36:33,198 INFO L168 Benchmark]: RCFGBuilder took 1361.82 ms. Allocated memory is still 158.3 MB. Free memory was 140.4 MB in the beginning and 100.6 MB in the end (delta: 39.8 MB). Peak memory consumption was 49.5 MB. Max. memory is 8.0 GB. [2020-10-29 11:36:33,199 INFO L168 Benchmark]: TraceAbstraction took 20482.18 ms. Allocated memory was 158.3 MB in the beginning and 494.9 MB in the end (delta: 336.6 MB). Free memory was 100.0 MB in the beginning and 262.1 MB in the end (delta: -162.1 MB). Peak memory consumption was 175.0 MB. Max. memory is 8.0 GB. [2020-10-29 11:36:33,203 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52 ms. Allocated memory is still 125.8 MB. Free memory was 100.4 MB in the beginning and 100.4 MB in the end (delta: 65.6 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 519.77 ms. Allocated memory is still 158.3 MB. Free memory was 132.9 MB in the beginning and 113.1 MB in the end (delta: 19.8 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 189.36 ms. Allocated memory is still 158.3 MB. Free memory was 113.1 MB in the beginning and 140.4 MB in the end (delta: -27.2 MB). Peak memory consumption was 5.3 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1361.82 ms. Allocated memory is still 158.3 MB. Free memory was 140.4 MB in the beginning and 100.6 MB in the end (delta: 39.8 MB). Peak memory consumption was 49.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 20482.18 ms. Allocated memory was 158.3 MB in the beginning and 494.9 MB in the end (delta: 336.6 MB). Free memory was 100.0 MB in the beginning and 262.1 MB in the end (delta: -162.1 MB). Peak memory consumption was 175.0 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: [L50] int pumpRunning = 0; [L51] int systemActive = 1; [L309] int cleanupTimeShifts = 4; [L405] int waterLevel = 1; [L406] int methaneLevelCritical = 0; [L654] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L382] int retValue_acc ; [L383] int tmp ; [L387] FCALL select_helpers() [L388] FCALL select_features() [L389] CALL, EXPR valid_product() [L255] int retValue_acc ; [L258] retValue_acc = 1 [L259] return (retValue_acc); [L389] RET, EXPR valid_product() [L389] tmp = valid_product() [L391] COND TRUE \read(tmp) [L393] FCALL setup() [L394] CALL runTest() [L376] CALL test() [L162] int splverifierCounter ; [L163] int tmp ; [L164] int tmp___0 ; [L165] int tmp___1 ; [L166] int tmp___2 ; [L169] splverifierCounter = 0 [L171] COND TRUE 1 [L173] COND TRUE splverifierCounter < 4 [L179] tmp = __VERIFIER_nondet_int() [L181] COND TRUE \read(tmp) [L183] CALL waterRise() [L423] COND TRUE waterLevel < 2 [L424] waterLevel = waterLevel + 1 [L183] RET waterRise() [L189] tmp___0 = __VERIFIER_nondet_int() [L191] COND FALSE !(\read(tmp___0)) [L199] tmp___2 = __VERIFIER_nondet_int() [L201] COND TRUE \read(tmp___2) [L214] CALL timeShift() [L58] COND FALSE !(\read(pumpRunning)) [L65] COND TRUE \read(systemActive) [L67] FCALL processEnvironment() [L73] CALL __utac_acc__Specification3_spec__1() [L267] int tmp ; [L268] int tmp___0 ; [L269] int tmp___1 ; [L273] CALL, EXPR isMethaneLevelCritical() [L444] int retValue_acc ; [L447] retValue_acc = methaneLevelCritical [L448] return (retValue_acc); [L273] RET, EXPR isMethaneLevelCritical() [L273] tmp = isMethaneLevelCritical() [L275] COND FALSE !(\read(tmp)) [L279] CALL, EXPR getWaterLevel() [L476] int retValue_acc ; [L479] retValue_acc = waterLevel [L480] return (retValue_acc); [L279] RET, EXPR getWaterLevel() [L279] tmp___0 = getWaterLevel() [L281] COND TRUE tmp___0 == 2 [L283] CALL, EXPR isPumpRunning() [L113] int retValue_acc ; [L116] retValue_acc = pumpRunning [L117] return (retValue_acc); [L283] RET, EXPR isPumpRunning() [L283] tmp___1 = isPumpRunning() [L285] COND FALSE !(\read(tmp___1)) [L289] CALL __automaton_fail() [L304] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product01.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 35 procedures, 209 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 20.4s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 9.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 305 SDtfs, 543 SDslu, 429 SDs, 0 SdLazy, 1590 SolverSat, 303 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 96 GetRequests, 63 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 5.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=179occurred 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: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 90 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 10.6s InterpolantComputationTime, 236 NumberOfCodeBlocks, 236 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 168 ConstructedInterpolants, 0 QuantifiedInterpolants, 53208 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...