/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_product07.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 11:36:45,682 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 11:36:45,685 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 11:36:45,733 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 11:36:45,733 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 11:36:45,735 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 11:36:45,736 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 11:36:45,739 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 11:36:45,741 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 11:36:45,742 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 11:36:45,743 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 11:36:45,745 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 11:36:45,745 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 11:36:45,747 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 11:36:45,748 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 11:36:45,749 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 11:36:45,750 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 11:36:45,751 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 11:36:45,753 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 11:36:45,770 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 11:36:45,772 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 11:36:45,773 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 11:36:45,775 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 11:36:45,776 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 11:36:45,779 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 11:36:45,779 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 11:36:45,780 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 11:36:45,781 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 11:36:45,781 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 11:36:45,782 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 11:36:45,783 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 11:36:45,784 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 11:36:45,785 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 11:36:45,786 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 11:36:45,787 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 11:36:45,787 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 11:36:45,788 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 11:36:45,788 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 11:36:45,789 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 11:36:45,790 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 11:36:45,791 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 11:36:45,794 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 11:36:45,821 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 11:36:45,822 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 11:36:45,823 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 11:36:45,823 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 11:36:45,824 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 11:36:45,824 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 11:36:45,824 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 11:36:45,824 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 11:36:45,825 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 11:36:45,825 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 11:36:45,825 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 11:36:45,825 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 11:36:45,826 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 11:36:45,826 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 11:36:45,826 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 11:36:45,826 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 11:36:45,827 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 11:36:45,827 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 11:36:45,827 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 11:36:45,827 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 11:36:45,828 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 11:36:45,828 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 11:36:45,828 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 11:36:45,828 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 11:36:45,829 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 11:36:45,829 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 11:36:45,829 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 11:36:45,829 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 11:36:45,829 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 11:36:45,830 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 11:36:46,206 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 11:36:46,236 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 11:36:46,239 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 11:36:46,241 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 11:36:46,242 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 11:36:46,243 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product07.cil.c [2020-10-29 11:36:46,340 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/21771c4e1/2c925eb43b71439aae64bb3ac298725d/FLAG823ff1297 [2020-10-29 11:36:46,999 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 11:36:46,999 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product07.cil.c [2020-10-29 11:36:47,019 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/21771c4e1/2c925eb43b71439aae64bb3ac298725d/FLAG823ff1297 [2020-10-29 11:36:47,322 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/21771c4e1/2c925eb43b71439aae64bb3ac298725d [2020-10-29 11:36:47,325 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 11:36:47,334 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 11:36:47,336 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 11:36:47,337 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 11:36:47,341 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 11:36:47,342 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 11:36:47" (1/1) ... [2020-10-29 11:36:47,352 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@352c6668 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:36:47, skipping insertion in model container [2020-10-29 11:36:47,352 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 11:36:47" (1/1) ... [2020-10-29 11:36:47,362 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 11:36:47,429 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 11:36:47,784 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 11:36:47,796 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 11:36:47,871 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 11:36:47,908 INFO L208 MainTranslator]: Completed translation [2020-10-29 11:36:47,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:36:47 WrapperNode [2020-10-29 11:36:47,909 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 11:36:47,910 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 11:36:47,910 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 11:36:47,910 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 11:36:47,926 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:36:47" (1/1) ... [2020-10-29 11:36:47,927 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:36:47" (1/1) ... [2020-10-29 11:36:47,946 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:36:47" (1/1) ... [2020-10-29 11:36:47,946 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:36:47" (1/1) ... [2020-10-29 11:36:47,982 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:36:47" (1/1) ... [2020-10-29 11:36:47,994 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:36:47" (1/1) ... [2020-10-29 11:36:48,000 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:36:47" (1/1) ... [2020-10-29 11:36:48,008 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 11:36:48,009 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 11:36:48,009 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 11:36:48,010 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 11:36:48,011 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:36:47" (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 11:36:48,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 11:36:48,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 11:36:48,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-29 11:36:48,106 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 11:36:48,106 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-29 11:36:48,107 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-29 11:36:48,107 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-29 11:36:48,107 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-29 11:36:48,107 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-29 11:36:48,107 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-29 11:36:48,107 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-29 11:36:48,108 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-29 11:36:48,108 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-29 11:36:48,108 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 11:36:48,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-29 11:36:48,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-29 11:36:48,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-29 11:36:48,109 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-29 11:36:48,109 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-29 11:36:48,109 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-29 11:36:48,109 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-29 11:36:48,109 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-29 11:36:48,109 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-29 11:36:48,110 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-29 11:36:48,110 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-29 11:36:48,110 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-29 11:36:48,110 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-29 11:36:48,110 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-29 11:36:48,110 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-29 11:36:48,110 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-29 11:36:48,111 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-29 11:36:48,111 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-29 11:36:48,111 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-29 11:36:48,111 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-29 11:36:48,111 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-29 11:36:48,111 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-29 11:36:48,112 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-29 11:36:48,112 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 11:36:48,112 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 11:36:48,112 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 11:36:48,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 11:36:48,112 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 11:36:48,113 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-29 11:36:48,113 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-29 11:36:48,113 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-29 11:36:48,113 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-29 11:36:48,113 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-29 11:36:48,113 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-29 11:36:48,113 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-29 11:36:48,114 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-29 11:36:48,114 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-29 11:36:48,114 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-29 11:36:48,114 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-29 11:36:48,114 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-29 11:36:48,114 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-29 11:36:48,114 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-29 11:36:48,115 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-29 11:36:48,115 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 11:36:48,115 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-29 11:36:48,115 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-29 11:36:48,115 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-29 11:36:48,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-29 11:36:48,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-29 11:36:48,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 11:36:48,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-29 11:36:48,116 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-29 11:36:48,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 11:36:48,116 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-29 11:36:48,117 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-29 11:36:48,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 11:36:48,117 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-29 11:36:48,117 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-29 11:36:48,117 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-29 11:36:48,117 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-29 11:36:48,118 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-29 11:36:48,118 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-29 11:36:48,118 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-29 11:36:48,118 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-29 11:36:48,118 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-29 11:36:48,118 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-29 11:36:48,119 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-29 11:36:48,119 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-29 11:36:48,119 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-29 11:36:48,119 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-29 11:36:48,119 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-29 11:36:48,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 11:36:48,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 11:36:48,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 11:36:49,571 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 11:36:49,572 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-29 11:36:49,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 11:36:49 BoogieIcfgContainer [2020-10-29 11:36:49,574 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 11:36:49,576 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 11:36:49,576 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 11:36:49,580 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 11:36:49,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 11:36:47" (1/3) ... [2020-10-29 11:36:49,581 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3113ddb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 11:36:49, skipping insertion in model container [2020-10-29 11:36:49,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:36:47" (2/3) ... [2020-10-29 11:36:49,582 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3113ddb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 11:36:49, skipping insertion in model container [2020-10-29 11:36:49,582 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 11:36:49" (3/3) ... [2020-10-29 11:36:49,584 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product07.cil.c [2020-10-29 11:36:49,595 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 11:36:49,601 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-29 11:36:49,630 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-29 11:36:49,657 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 11:36:49,657 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 11:36:49,657 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 11:36:49,657 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 11:36:49,658 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 11:36:49,658 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 11:36:49,658 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 11:36:49,658 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 11:36:49,680 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states. [2020-10-29 11:36:49,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-29 11:36:49,690 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 11:36:49,691 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 11:36:49,692 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 11:36:49,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 11:36:49,698 INFO L82 PathProgramCache]: Analyzing trace with hash -317750886, now seen corresponding path program 1 times [2020-10-29 11:36:49,708 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 11:36:49,708 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [980894891] [2020-10-29 11:36:49,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 11:36:49,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:50,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:50,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:50,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:52,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:52,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-29 11:36:52,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 11:36:52,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2892 [2020-10-29 11:36:52,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:52,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:52,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 11:36:52,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:36:52,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-29 11:36:52,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-10-29 11:36:53,604 WARN L193 SmtUtils]: Spent 626.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-29 11:36:53,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 11:36:53,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:53,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:53,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:53,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:36:53,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:36:53,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-10-29 11:36:53,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:53,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:53,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:36:53,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:36:53,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 11:36:53,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:36:53,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 11:36:53,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:53,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:53,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:53,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:36:53,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:36:53,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:36:53,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:53,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:53,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:36:53,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:36:53,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:36:53,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:36:53,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 11:36:53,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:53,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:53,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:53,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:36:53,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:36:53,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:36:53,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:53,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:53,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:36:53,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:36:53,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:36:53,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:36:53,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 11:36:53,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:53,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:53,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:53,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:36:53,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:36:53,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 11:36:53,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:53,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:53,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:36:53,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:36:53,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:36:53,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:36:53,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 11:36:53,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:53,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:53,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:53,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:36:53,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:36:53,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-29 11:36:53,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:53,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:53,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:36:53,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:36:53,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:36:53,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:36:53,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-29 11:36:53,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:53,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:53,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:53,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:36:53,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:36:53,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:36:53,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:53,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:53,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:36:53,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:36:53,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:36:53,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:36:53,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-29 11:36:53,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:53,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:53,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:53,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:36:53,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:36:53,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:36:53,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:53,912 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:53,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:36:53,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:36:53,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:36:53,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:36:53,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-29 11:36:53,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:53,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:53,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:53,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:36:53,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:36:53,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:36:53,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:53,919 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:53,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:36:53,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:36:53,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:36:53,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:36:53,933 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 11:36:53,934 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [980894891] [2020-10-29 11:36:53,936 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 11:36:53,936 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 11:36:53,937 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274358194] [2020-10-29 11:36:53,942 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 11:36:53,942 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 11:36:53,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 11:36:53,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 11:36:53,959 INFO L87 Difference]: Start difference. First operand 158 states. Second operand 4 states. [2020-10-29 11:36:54,749 WARN L193 SmtUtils]: Spent 666.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:36:57,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 11:36:57,042 INFO L93 Difference]: Finished difference Result 385 states and 519 transitions. [2020-10-29 11:36:57,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 11:36:57,044 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-10-29 11:36:57,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 11:36:57,059 INFO L225 Difference]: With dead ends: 385 [2020-10-29 11:36:57,060 INFO L226 Difference]: Without dead ends: 248 [2020-10-29 11:36:57,065 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-29 11:36:57,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2020-10-29 11:36:57,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 193. [2020-10-29 11:36:57,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2020-10-29 11:36:57,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 234 transitions. [2020-10-29 11:36:57,211 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 234 transitions. Word has length 53 [2020-10-29 11:36:57,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 11:36:57,211 INFO L481 AbstractCegarLoop]: Abstraction has 193 states and 234 transitions. [2020-10-29 11:36:57,212 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 11:36:57,212 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 234 transitions. [2020-10-29 11:36:57,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-29 11:36:57,216 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 11:36:57,216 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 11:36:57,217 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 11:36:57,217 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 11:36:57,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 11:36:57,218 INFO L82 PathProgramCache]: Analyzing trace with hash 1011150150, now seen corresponding path program 1 times [2020-10-29 11:36:57,218 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 11:36:57,218 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1935256441] [2020-10-29 11:36:57,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 11:36:57,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:57,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:58,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:58,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-29 11:36:58,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:36:58,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1379 [2020-10-29 11:36:58,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:58,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:58,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-29 11:36:58,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:36:58,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-29 11:36:58,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:36:59,100 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-29 11:36:59,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 11:36:59,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:59,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:59,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:59,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:36:59,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:36:59,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-29 11:36:59,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:59,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:59,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:36:59,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:36:59,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 11:36:59,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:36:59,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 11:36:59,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:59,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:59,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:59,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:36:59,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:36:59,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:36:59,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:59,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:59,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:36:59,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:36:59,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:36:59,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:36:59,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 11:36:59,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:59,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:59,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:59,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:36:59,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:36:59,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:36:59,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:59,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:59,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:36:59,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:36:59,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:36:59,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:36:59,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 11:36:59,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:59,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:59,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:59,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:36:59,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:36:59,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:36:59,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:59,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:59,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:36:59,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:36:59,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:36:59,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:36:59,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 11:36:59,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:59,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:59,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:59,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:36:59,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:36:59,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:36:59,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:59,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:59,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:36:59,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:36:59,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:36:59,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:36:59,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-29 11:36:59,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:59,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:59,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:59,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-29 11:36:59,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:36:59,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 11:36:59,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:59,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:59,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:36:59,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:36:59,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 11:36:59,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:36:59,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 11:36:59,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:59,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:59,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:59,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:36:59,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:36:59,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:36:59,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:59,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:59,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:36:59,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:36:59,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:36:59,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:36:59,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-29 11:36:59,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:59,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:59,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:59,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:36:59,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:36:59,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:36:59,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:59,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:59,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:36:59,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:36:59,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:36:59,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:36:59,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-29 11:36:59,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:59,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:59,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:59,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:36:59,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:36:59,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 11:36:59,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:59,322 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:59,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 11:36:59,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:36:59,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:36:59,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:36:59,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-29 11:36:59,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:36:59,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:36:59,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:36:59,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:36:59,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:36:59,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:36:59,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:36:59,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:36:59,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:36:59,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:36:59,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:36:59,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:36:59,363 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 11:36:59,363 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1935256441] [2020-10-29 11:36:59,364 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 11:36:59,364 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-29 11:36:59,364 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739705416] [2020-10-29 11:36:59,366 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 11:36:59,366 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 11:36:59,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 11:36:59,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-29 11:36:59,367 INFO L87 Difference]: Start difference. First operand 193 states and 234 transitions. Second operand 8 states. [2020-10-29 11:36:59,944 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:37:02,222 WARN L193 SmtUtils]: Spent 738.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 206 [2020-10-29 11:37:02,705 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-29 11:37:03,126 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-29 11:37:03,582 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-29 11:37:04,112 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:37:05,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 11:37:05,346 INFO L93 Difference]: Finished difference Result 669 states and 943 transitions. [2020-10-29 11:37:05,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-29 11:37:05,352 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 66 [2020-10-29 11:37:05,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 11:37:05,365 INFO L225 Difference]: With dead ends: 669 [2020-10-29 11:37:05,365 INFO L226 Difference]: Without dead ends: 500 [2020-10-29 11:37:05,369 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2020-10-29 11:37:05,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2020-10-29 11:37:05,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 360. [2020-10-29 11:37:05,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 360 states. [2020-10-29 11:37:05,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 454 transitions. [2020-10-29 11:37:05,510 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 454 transitions. Word has length 66 [2020-10-29 11:37:05,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 11:37:05,511 INFO L481 AbstractCegarLoop]: Abstraction has 360 states and 454 transitions. [2020-10-29 11:37:05,511 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 11:37:05,511 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 454 transitions. [2020-10-29 11:37:05,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-10-29 11:37:05,516 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 11:37:05,516 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 11:37:05,516 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 11:37:05,517 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 11:37:05,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 11:37:05,517 INFO L82 PathProgramCache]: Analyzing trace with hash 466778592, now seen corresponding path program 1 times [2020-10-29 11:37:05,517 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 11:37:05,518 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [594784694] [2020-10-29 11:37:05,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 11:37:05,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:05,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:05,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:06,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:08,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:10,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:10,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-29 11:37:10,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 11:37:10,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-29 11:37:10,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:10,566 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:10,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-29 11:37:10,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:37:10,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-29 11:37:10,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:37:10,961 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-29 11:37:10,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 11:37:10,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:10,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:11,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:11,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:37:11,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:11,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-29 11:37:11,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:11,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:11,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:37:11,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:37:11,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 11:37:11,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:37:11,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 11:37:11,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:11,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:11,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:11,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:37:11,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:11,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:37:11,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:11,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:11,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:37:11,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:37:11,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:37:11,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:37:11,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 11:37:11,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:11,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:11,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:11,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:37:11,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:11,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:37:11,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:11,091 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:11,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:37:11,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:37:11,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:37:11,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:37:11,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 11:37:11,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:11,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:11,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:11,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:37:11,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:11,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:37:11,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:11,098 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:11,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:37:11,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:37:11,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:37:11,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:37:11,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 11:37:11,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:11,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:11,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:11,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:37:11,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:11,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:37:11,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:11,104 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:11,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:37:11,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:37:11,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:37:11,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:37:11,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-29 11:37:11,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:11,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:11,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:11,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:37:11,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:11,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 11:37:11,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:11,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:11,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 11:37:11,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 11:37:11,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 11:37:11,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:37:11,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-29 11:37:11,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:11,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:11,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:11,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-29 11:37:11,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:11,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 11:37:11,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:11,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:11,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:37:11,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:37:11,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 11:37:11,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 11:37:11,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 11:37:11,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:11,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:11,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:11,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:37:11,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:11,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 11:37:11,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:11,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:11,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:37:11,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:37:11,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:37:11,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:37:11,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-29 11:37:11,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:11,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:11,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:11,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:37:11,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:11,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 11:37:11,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:11,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:11,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:37:11,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:37:11,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:37:11,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:37:11,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-29 11:37:11,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:11,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:11,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:11,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:37:11,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:11,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 11:37:11,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:11,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:11,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 11:37:11,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:37:11,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:37:11,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:37:11,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-29 11:37:11,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:11,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:11,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:11,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:37:11,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:11,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:37:11,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:11,266 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:11,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:37:11,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:37:11,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:37:11,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:37:11,281 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 11:37:11,282 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [594784694] [2020-10-29 11:37:11,282 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 11:37:11,282 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-29 11:37:11,283 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144765210] [2020-10-29 11:37:11,283 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-29 11:37:11,283 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 11:37:11,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-29 11:37:11,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-10-29 11:37:11,284 INFO L87 Difference]: Start difference. First operand 360 states and 454 transitions. Second operand 11 states. [2020-10-29 11:37:11,821 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:37:12,919 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:37:13,978 WARN L193 SmtUtils]: Spent 735.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 205 [2020-10-29 11:37:15,560 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-29 11:37:16,338 WARN L193 SmtUtils]: Spent 739.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 206 [2020-10-29 11:37:16,850 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:37:17,276 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:37:18,134 WARN L193 SmtUtils]: Spent 739.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 211 [2020-10-29 11:37:20,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 11:37:20,832 INFO L93 Difference]: Finished difference Result 1329 states and 1951 transitions. [2020-10-29 11:37:20,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-29 11:37:20,833 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 70 [2020-10-29 11:37:20,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 11:37:20,843 INFO L225 Difference]: With dead ends: 1329 [2020-10-29 11:37:20,843 INFO L226 Difference]: Without dead ends: 1053 [2020-10-29 11:37:20,848 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=211, Invalid=719, Unknown=0, NotChecked=0, Total=930 [2020-10-29 11:37:20,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1053 states. [2020-10-29 11:37:21,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1053 to 754. [2020-10-29 11:37:21,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 754 states. [2020-10-29 11:37:21,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 754 states to 754 states and 936 transitions. [2020-10-29 11:37:21,107 INFO L78 Accepts]: Start accepts. Automaton has 754 states and 936 transitions. Word has length 70 [2020-10-29 11:37:21,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 11:37:21,108 INFO L481 AbstractCegarLoop]: Abstraction has 754 states and 936 transitions. [2020-10-29 11:37:21,108 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-29 11:37:21,108 INFO L276 IsEmpty]: Start isEmpty. Operand 754 states and 936 transitions. [2020-10-29 11:37:21,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-29 11:37:21,111 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 11:37:21,112 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 11:37:21,112 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 11:37:21,112 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 11:37:21,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 11:37:21,113 INFO L82 PathProgramCache]: Analyzing trace with hash -1439210500, now seen corresponding path program 1 times [2020-10-29 11:37:21,113 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 11:37:21,113 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [182721019] [2020-10-29 11:37:21,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 11:37:21,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-29 11:37:21,162 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-29 11:37:21,162 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-29 11:37:21,167 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 11:37:21,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 11:37:21 BoogieIcfgContainer [2020-10-29 11:37:21,194 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-29 11:37:21,196 INFO L168 Benchmark]: Toolchain (without parser) took 33866.47 ms. Allocated memory was 152.0 MB in the beginning and 503.3 MB in the end (delta: 351.3 MB). Free memory was 126.5 MB in the beginning and 378.4 MB in the end (delta: -252.0 MB). Peak memory consumption was 100.0 MB. Max. memory is 8.0 GB. [2020-10-29 11:37:21,197 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 152.0 MB. Free memory is still 124.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 11:37:21,198 INFO L168 Benchmark]: CACSL2BoogieTranslator took 572.78 ms. Allocated memory is still 152.0 MB. Free memory was 125.9 MB in the beginning and 105.8 MB in the end (delta: 20.1 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2020-10-29 11:37:21,199 INFO L168 Benchmark]: Boogie Preprocessor took 98.19 ms. Allocated memory is still 152.0 MB. Free memory was 105.8 MB in the beginning and 102.0 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-29 11:37:21,201 INFO L168 Benchmark]: RCFGBuilder took 1564.90 ms. Allocated memory is still 152.0 MB. Free memory was 101.8 MB in the beginning and 50.7 MB in the end (delta: 51.1 MB). Peak memory consumption was 51.3 MB. Max. memory is 8.0 GB. [2020-10-29 11:37:21,207 INFO L168 Benchmark]: TraceAbstraction took 31617.97 ms. Allocated memory was 152.0 MB in the beginning and 503.3 MB in the end (delta: 351.3 MB). Free memory was 50.2 MB in the beginning and 378.4 MB in the end (delta: -328.2 MB). Peak memory consumption was 22.5 MB. Max. memory is 8.0 GB. [2020-10-29 11:37:21,212 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 152.0 MB. Free memory is still 124.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 572.78 ms. Allocated memory is still 152.0 MB. Free memory was 125.9 MB in the beginning and 105.8 MB in the end (delta: 20.1 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 98.19 ms. Allocated memory is still 152.0 MB. Free memory was 105.8 MB in the beginning and 102.0 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1564.90 ms. Allocated memory is still 152.0 MB. Free memory was 101.8 MB in the beginning and 50.7 MB in the end (delta: 51.1 MB). Peak memory consumption was 51.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 31617.97 ms. Allocated memory was 152.0 MB in the beginning and 503.3 MB in the end (delta: 351.3 MB). Free memory was 50.2 MB in the beginning and 378.4 MB in the end (delta: -328.2 MB). Peak memory consumption was 22.5 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: [L89] int cleanupTimeShifts = 4; [L359] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L598] int pumpRunning = 0; [L599] int systemActive = 1; [L813] int waterLevel = 1; [L814] int methaneLevelCritical = 0; [L167] int retValue_acc ; [L168] int tmp ; [L172] FCALL select_helpers() [L173] FCALL select_features() [L174] CALL, EXPR valid_product() [L80] int retValue_acc ; [L83] retValue_acc = 1 [L84] return (retValue_acc); [L174] RET, EXPR valid_product() [L174] tmp = valid_product() [L176] COND TRUE \read(tmp) [L178] FCALL setup() [L179] CALL runTest() [L161] CALL test() [L747] int splverifierCounter ; [L748] int tmp ; [L749] int tmp___0 ; [L750] int tmp___1 ; [L751] int tmp___2 ; [L754] splverifierCounter = 0 [L756] COND TRUE 1 [L758] COND TRUE splverifierCounter < 4 [L764] tmp = __VERIFIER_nondet_int() [L766] COND TRUE \read(tmp) [L768] CALL waterRise() [L831] COND TRUE waterLevel < 2 [L832] waterLevel = waterLevel + 1 [L768] RET waterRise() [L774] tmp___0 = __VERIFIER_nondet_int() [L776] COND FALSE !(\read(tmp___0)) [L784] tmp___2 = __VERIFIER_nondet_int() [L786] COND FALSE !(\read(tmp___2)) [L790] tmp___1 = __VERIFIER_nondet_int() [L792] COND TRUE \read(tmp___1) [L794] CALL stopSystem() [L734] COND FALSE !(\read(pumpRunning)) [L741] systemActive = 0 [L794] RET stopSystem() [L801] CALL timeShift() [L605] COND FALSE !(\read(pumpRunning)) [L612] COND FALSE !(\read(systemActive)) [L620] CALL __utac_acc__Specification3_spec__1() [L560] int tmp ; [L561] int tmp___0 ; [L562] int tmp___1 ; [L566] CALL, EXPR isMethaneLevelCritical() [L852] int retValue_acc ; [L855] retValue_acc = methaneLevelCritical [L856] return (retValue_acc); [L566] RET, EXPR isMethaneLevelCritical() [L566] tmp = isMethaneLevelCritical() [L568] COND FALSE !(\read(tmp)) [L572] CALL, EXPR getWaterLevel() [L884] int retValue_acc ; [L887] retValue_acc = waterLevel [L888] return (retValue_acc); [L572] RET, EXPR getWaterLevel() [L572] tmp___0 = getWaterLevel() [L574] COND TRUE tmp___0 == 2 [L576] CALL, EXPR isPumpRunning() [L686] int retValue_acc ; [L689] retValue_acc = pumpRunning [L690] return (retValue_acc); [L576] RET, EXPR isPumpRunning() [L576] tmp___1 = isPumpRunning() [L578] COND FALSE !(\read(tmp___1)) [L582] CALL __automaton_fail() [L46] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product07.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 225 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 31.5s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 18.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 461 SDtfs, 1372 SDslu, 616 SDs, 0 SdLazy, 2523 SolverSat, 1115 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 117 GetRequests, 70 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 9.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=754occurred 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: 0.5s AutomataMinimizationTime, 3 MinimizatonAttempts, 494 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 11.7s InterpolantComputationTime, 257 NumberOfCodeBlocks, 257 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 186 ConstructedInterpolants, 0 QuantifiedInterpolants, 63834 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...