/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks NOT_INCREMENTALLY -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product42.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 10:36:12,864 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 10:36:12,868 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 10:36:12,884 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 10:36:12,885 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 10:36:12,886 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 10:36:12,888 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 10:36:12,897 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 10:36:12,899 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 10:36:12,901 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 10:36:12,902 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 10:36:12,904 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 10:36:12,905 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 10:36:12,908 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 10:36:12,909 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 10:36:12,911 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 10:36:12,913 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 10:36:12,915 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 10:36:12,917 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 10:36:12,921 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 10:36:12,925 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 10:36:12,927 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 10:36:12,928 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 10:36:12,929 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 10:36:12,931 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-21 10:36:12,931 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-21 10:36:12,931 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-21 10:36:12,933 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-21 10:36:12,934 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-21 10:36:12,935 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-21 10:36:12,936 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-21 10:36:12,937 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-21 10:36:12,937 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-21 10:36:12,938 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-21 10:36:12,941 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-21 10:36:12,941 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-21 10:36:12,941 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-21 10:36:12,942 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-21 10:36:12,942 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 10:36:12,943 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 10:36:12,943 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 10:36:12,944 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 10:36:12,957 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 10:36:12,958 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 10:36:12,959 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 10:36:12,959 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 10:36:12,959 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 10:36:12,959 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 10:36:12,960 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 10:36:12,960 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 10:36:12,960 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 10:36:12,960 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 10:36:12,960 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 10:36:12,960 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 10:36:12,961 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 10:36:12,961 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 10:36:12,961 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 10:36:12,961 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 10:36:12,961 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 10:36:12,962 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 10:36:12,962 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 10:36:12,962 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 10:36:12,962 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 10:36:12,962 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 10:36:12,963 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 10:36:12,963 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 10:36:12,963 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 10:36:12,963 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 10:36:12,963 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:36:12,964 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 10:36:12,964 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 10:36:12,964 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> NOT_INCREMENTALLY [2020-07-21 10:36:13,216 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 10:36:13,234 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 10:36:13,238 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 10:36:13,239 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 10:36:13,241 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 10:36:13,243 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product42.cil.c [2020-07-21 10:36:13,304 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7dabeb4cf/c3e7491f0fc241babd0bd508ddce28bb/FLAG32dd7347a [2020-07-21 10:36:13,784 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 10:36:13,785 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product42.cil.c [2020-07-21 10:36:13,803 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7dabeb4cf/c3e7491f0fc241babd0bd508ddce28bb/FLAG32dd7347a [2020-07-21 10:36:14,131 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7dabeb4cf/c3e7491f0fc241babd0bd508ddce28bb [2020-07-21 10:36:14,138 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 10:36:14,141 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 10:36:14,142 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 10:36:14,142 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 10:36:14,145 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 10:36:14,146 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:36:14" (1/1) ... [2020-07-21 10:36:14,149 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29688108 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:36:14, skipping insertion in model container [2020-07-21 10:36:14,149 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:36:14" (1/1) ... [2020-07-21 10:36:14,156 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 10:36:14,199 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 10:36:14,626 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 10:36:14,641 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 10:36:14,713 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 10:36:14,749 INFO L208 MainTranslator]: Completed translation [2020-07-21 10:36:14,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:36:14 WrapperNode [2020-07-21 10:36:14,750 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 10:36:14,750 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 10:36:14,750 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 10:36:14,751 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 10:36:14,761 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:36:14" (1/1) ... [2020-07-21 10:36:14,762 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:36:14" (1/1) ... [2020-07-21 10:36:14,780 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:36:14" (1/1) ... [2020-07-21 10:36:14,780 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:36:14" (1/1) ... [2020-07-21 10:36:14,811 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:36:14" (1/1) ... [2020-07-21 10:36:14,821 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:36:14" (1/1) ... [2020-07-21 10:36:14,826 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:36:14" (1/1) ... [2020-07-21 10:36:14,833 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 10:36:14,833 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 10:36:14,833 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 10:36:14,834 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 10:36:14,834 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:36:14" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2020-07-21 10:36:14,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 10:36:14,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 10:36:14,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-21 10:36:14,888 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-21 10:36:14,888 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-21 10:36:14,889 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-21 10:36:14,889 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-21 10:36:14,889 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-21 10:36:14,889 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-21 10:36:14,889 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-21 10:36:14,889 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-21 10:36:14,890 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-21 10:36:14,890 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-21 10:36:14,890 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-07-21 10:36:14,890 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-21 10:36:14,890 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-21 10:36:14,890 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-21 10:36:14,891 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-21 10:36:14,891 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-21 10:36:14,891 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-21 10:36:14,891 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-07-21 10:36:14,891 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-07-21 10:36:14,891 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-07-21 10:36:14,891 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-21 10:36:14,892 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-21 10:36:14,892 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-21 10:36:14,892 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-21 10:36:14,892 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-21 10:36:14,892 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-21 10:36:14,892 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-21 10:36:14,893 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-21 10:36:14,893 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 10:36:14,893 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-21 10:36:14,893 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-21 10:36:14,893 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-21 10:36:14,893 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-21 10:36:14,893 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-21 10:36:14,894 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-21 10:36:14,894 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-21 10:36:14,894 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-21 10:36:14,894 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 10:36:14,894 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 10:36:14,895 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-21 10:36:14,895 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-21 10:36:14,895 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-21 10:36:14,895 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-21 10:36:14,895 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-21 10:36:14,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-21 10:36:14,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-21 10:36:14,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-21 10:36:14,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-21 10:36:14,896 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-21 10:36:14,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-21 10:36:14,896 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-21 10:36:14,896 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-21 10:36:14,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-21 10:36:14,897 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-21 10:36:14,897 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-21 10:36:14,897 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-21 10:36:14,897 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-21 10:36:14,897 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-21 10:36:14,898 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-21 10:36:14,898 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-07-21 10:36:14,898 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-21 10:36:14,898 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-21 10:36:14,898 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-21 10:36:14,898 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-21 10:36:14,898 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-21 10:36:14,899 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-21 10:36:14,899 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-21 10:36:14,899 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-21 10:36:14,899 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-21 10:36:14,899 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-21 10:36:14,899 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-21 10:36:14,900 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-07-21 10:36:14,900 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-21 10:36:14,900 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-21 10:36:14,900 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-21 10:36:14,900 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-07-21 10:36:14,900 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-21 10:36:14,901 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-21 10:36:14,901 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-07-21 10:36:14,901 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-21 10:36:14,901 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-21 10:36:14,901 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-21 10:36:14,901 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-21 10:36:14,901 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-21 10:36:14,902 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-21 10:36:14,902 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-21 10:36:14,902 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 10:36:14,902 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-21 10:36:14,902 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 10:36:14,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-21 10:36:14,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 10:36:15,942 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 10:36:15,943 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-21 10:36:15,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:36:15 BoogieIcfgContainer [2020-07-21 10:36:15,948 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 10:36:15,949 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 10:36:15,949 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 10:36:15,952 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 10:36:15,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 10:36:14" (1/3) ... [2020-07-21 10:36:15,953 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f5d52f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:36:15, skipping insertion in model container [2020-07-21 10:36:15,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:36:14" (2/3) ... [2020-07-21 10:36:15,953 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f5d52f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:36:15, skipping insertion in model container [2020-07-21 10:36:15,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:36:15" (3/3) ... [2020-07-21 10:36:15,955 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product42.cil.c [2020-07-21 10:36:15,965 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 10:36:15,972 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 10:36:15,985 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 10:36:16,009 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 10:36:16,010 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 10:36:16,010 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 10:36:16,010 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 10:36:16,010 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 10:36:16,010 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 10:36:16,011 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 10:36:16,011 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 10:36:16,032 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states. [2020-07-21 10:36:16,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-21 10:36:16,041 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:36:16,043 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] [2020-07-21 10:36:16,043 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:36:16,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:36:16,049 INFO L82 PathProgramCache]: Analyzing trace with hash 1331255295, now seen corresponding path program 1 times [2020-07-21 10:36:16,058 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:36:16,058 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [764123397] [2020-07-21 10:36:16,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:36:16,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:36:16,335 INFO L263 TraceCheckSpWp]: Trace formula consists of 686 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-21 10:36:16,351 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:36:16,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 10:36:16,394 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:36:16,395 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [764123397] [2020-07-21 10:36:16,396 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:36:16,397 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-21 10:36:16,398 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67783912] [2020-07-21 10:36:16,402 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-21 10:36:16,403 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:36:16,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-21 10:36:16,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 10:36:16,419 INFO L87 Difference]: Start difference. First operand 169 states. Second operand 2 states. [2020-07-21 10:36:16,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:36:16,456 INFO L93 Difference]: Finished difference Result 248 states and 307 transitions. [2020-07-21 10:36:16,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-21 10:36:16,458 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2020-07-21 10:36:16,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:36:16,470 INFO L225 Difference]: With dead ends: 248 [2020-07-21 10:36:16,470 INFO L226 Difference]: Without dead ends: 126 [2020-07-21 10:36:16,474 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 10:36:16,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-07-21 10:36:16,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2020-07-21 10:36:16,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-07-21 10:36:16,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 147 transitions. [2020-07-21 10:36:16,528 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 147 transitions. Word has length 51 [2020-07-21 10:36:16,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:36:16,528 INFO L479 AbstractCegarLoop]: Abstraction has 126 states and 147 transitions. [2020-07-21 10:36:16,528 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-21 10:36:16,529 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 147 transitions. [2020-07-21 10:36:16,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-21 10:36:16,532 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:36:16,532 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] [2020-07-21 10:36:16,744 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:36:16,744 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:36:16,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:36:16,746 INFO L82 PathProgramCache]: Analyzing trace with hash -42152189, now seen corresponding path program 1 times [2020-07-21 10:36:16,746 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:36:16,747 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [670941721] [2020-07-21 10:36:16,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:36:16,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:36:16,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 687 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-21 10:36:16,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:36:17,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 10:36:17,019 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:36:17,020 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [670941721] [2020-07-21 10:36:17,020 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:36:17,020 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 10:36:17,020 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651315052] [2020-07-21 10:36:17,022 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 10:36:17,022 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:36:17,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 10:36:17,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 10:36:17,023 INFO L87 Difference]: Start difference. First operand 126 states and 147 transitions. Second operand 3 states. [2020-07-21 10:36:17,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:36:17,046 INFO L93 Difference]: Finished difference Result 193 states and 225 transitions. [2020-07-21 10:36:17,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 10:36:17,047 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-07-21 10:36:17,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:36:17,049 INFO L225 Difference]: With dead ends: 193 [2020-07-21 10:36:17,049 INFO L226 Difference]: Without dead ends: 117 [2020-07-21 10:36:17,051 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 10:36:17,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2020-07-21 10:36:17,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2020-07-21 10:36:17,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2020-07-21 10:36:17,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 135 transitions. [2020-07-21 10:36:17,064 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 135 transitions. Word has length 52 [2020-07-21 10:36:17,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:36:17,065 INFO L479 AbstractCegarLoop]: Abstraction has 117 states and 135 transitions. [2020-07-21 10:36:17,065 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 10:36:17,065 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 135 transitions. [2020-07-21 10:36:17,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-07-21 10:36:17,067 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:36:17,068 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 10:36:17,280 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:36:17,281 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:36:17,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:36:17,281 INFO L82 PathProgramCache]: Analyzing trace with hash -1757460962, now seen corresponding path program 1 times [2020-07-21 10:36:17,282 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:36:17,282 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [536420656] [2020-07-21 10:36:17,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:36:17,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:36:17,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 696 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 10:36:17,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:36:17,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 10:36:17,486 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:36:17,486 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [536420656] [2020-07-21 10:36:17,486 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:36:17,486 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 10:36:17,487 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140743294] [2020-07-21 10:36:17,487 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 10:36:17,487 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:36:17,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 10:36:17,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 10:36:17,488 INFO L87 Difference]: Start difference. First operand 117 states and 135 transitions. Second operand 3 states. [2020-07-21 10:36:17,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:36:17,507 INFO L93 Difference]: Finished difference Result 206 states and 243 transitions. [2020-07-21 10:36:17,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 10:36:17,507 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 57 [2020-07-21 10:36:17,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:36:17,509 INFO L225 Difference]: With dead ends: 206 [2020-07-21 10:36:17,509 INFO L226 Difference]: Without dead ends: 117 [2020-07-21 10:36:17,511 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 10:36:17,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2020-07-21 10:36:17,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2020-07-21 10:36:17,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2020-07-21 10:36:17,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 134 transitions. [2020-07-21 10:36:17,524 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 134 transitions. Word has length 57 [2020-07-21 10:36:17,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:36:17,524 INFO L479 AbstractCegarLoop]: Abstraction has 117 states and 134 transitions. [2020-07-21 10:36:17,524 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 10:36:17,524 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 134 transitions. [2020-07-21 10:36:17,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-07-21 10:36:17,527 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:36:17,527 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 10:36:17,742 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:36:17,743 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:36:17,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:36:17,743 INFO L82 PathProgramCache]: Analyzing trace with hash 2060596455, now seen corresponding path program 1 times [2020-07-21 10:36:17,743 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:36:17,744 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1685018207] [2020-07-21 10:36:17,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:36:17,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:36:17,926 INFO L263 TraceCheckSpWp]: Trace formula consists of 709 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-21 10:36:17,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:36:17,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 10:36:17,972 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:36:17,973 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1685018207] [2020-07-21 10:36:17,973 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:36:17,973 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 10:36:17,973 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352333050] [2020-07-21 10:36:17,974 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 10:36:17,974 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:36:17,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 10:36:17,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 10:36:17,976 INFO L87 Difference]: Start difference. First operand 117 states and 134 transitions. Second operand 3 states. [2020-07-21 10:36:18,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:36:18,018 INFO L93 Difference]: Finished difference Result 206 states and 244 transitions. [2020-07-21 10:36:18,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 10:36:18,018 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 65 [2020-07-21 10:36:18,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:36:18,023 INFO L225 Difference]: With dead ends: 206 [2020-07-21 10:36:18,023 INFO L226 Difference]: Without dead ends: 203 [2020-07-21 10:36:18,023 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 10:36:18,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2020-07-21 10:36:18,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2020-07-21 10:36:18,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2020-07-21 10:36:18,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 241 transitions. [2020-07-21 10:36:18,049 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 241 transitions. Word has length 65 [2020-07-21 10:36:18,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:36:18,049 INFO L479 AbstractCegarLoop]: Abstraction has 203 states and 241 transitions. [2020-07-21 10:36:18,050 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 10:36:18,050 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 241 transitions. [2020-07-21 10:36:18,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-07-21 10:36:18,052 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:36:18,053 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 10:36:18,267 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:36:18,268 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:36:18,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:36:18,268 INFO L82 PathProgramCache]: Analyzing trace with hash 1941914841, now seen corresponding path program 1 times [2020-07-21 10:36:18,268 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:36:18,269 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1038706311] [2020-07-21 10:36:18,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:36:18,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:36:18,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 808 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-21 10:36:18,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:36:18,517 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-07-21 10:36:18,518 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:36:18,518 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1038706311] [2020-07-21 10:36:18,518 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:36:18,518 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-21 10:36:18,519 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578848271] [2020-07-21 10:36:18,519 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 10:36:18,519 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:36:18,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 10:36:18,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-07-21 10:36:18,520 INFO L87 Difference]: Start difference. First operand 203 states and 241 transitions. Second operand 7 states. [2020-07-21 10:36:19,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:36:19,195 INFO L93 Difference]: Finished difference Result 480 states and 608 transitions. [2020-07-21 10:36:19,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-21 10:36:19,196 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 104 [2020-07-21 10:36:19,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:36:19,200 INFO L225 Difference]: With dead ends: 480 [2020-07-21 10:36:19,200 INFO L226 Difference]: Without dead ends: 305 [2020-07-21 10:36:19,202 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-07-21 10:36:19,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2020-07-21 10:36:19,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 280. [2020-07-21 10:36:19,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2020-07-21 10:36:19,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 338 transitions. [2020-07-21 10:36:19,230 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 338 transitions. Word has length 104 [2020-07-21 10:36:19,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:36:19,231 INFO L479 AbstractCegarLoop]: Abstraction has 280 states and 338 transitions. [2020-07-21 10:36:19,231 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 10:36:19,231 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 338 transitions. [2020-07-21 10:36:19,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-07-21 10:36:19,234 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:36:19,235 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 10:36:19,447 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:36:19,448 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:36:19,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:36:19,449 INFO L82 PathProgramCache]: Analyzing trace with hash -341414586, now seen corresponding path program 1 times [2020-07-21 10:36:19,450 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:36:19,450 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1372257438] [2020-07-21 10:36:19,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:36:19,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:36:19,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 894 conjuncts, 23 conjunts are in the unsatisfiable core [2020-07-21 10:36:19,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:36:19,702 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-07-21 10:36:19,702 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 10:36:19,924 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-07-21 10:36:19,925 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1372257438] [2020-07-21 10:36:19,925 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-21 10:36:19,925 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 7 [2020-07-21 10:36:19,925 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279912260] [2020-07-21 10:36:19,926 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 10:36:19,926 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:36:19,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 10:36:19,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-21 10:36:19,927 INFO L87 Difference]: Start difference. First operand 280 states and 338 transitions. Second operand 6 states. [2020-07-21 10:36:20,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:36:20,181 INFO L93 Difference]: Finished difference Result 747 states and 940 transitions. [2020-07-21 10:36:20,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 10:36:20,181 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 138 [2020-07-21 10:36:20,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:36:20,190 INFO L225 Difference]: With dead ends: 747 [2020-07-21 10:36:20,190 INFO L226 Difference]: Without dead ends: 495 [2020-07-21 10:36:20,194 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 271 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-07-21 10:36:20,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2020-07-21 10:36:20,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 411. [2020-07-21 10:36:20,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 411 states. [2020-07-21 10:36:20,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 494 transitions. [2020-07-21 10:36:20,246 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 494 transitions. Word has length 138 [2020-07-21 10:36:20,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:36:20,247 INFO L479 AbstractCegarLoop]: Abstraction has 411 states and 494 transitions. [2020-07-21 10:36:20,247 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 10:36:20,247 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 494 transitions. [2020-07-21 10:36:20,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-07-21 10:36:20,252 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:36:20,252 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 10:36:20,466 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:36:20,466 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:36:20,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:36:20,467 INFO L82 PathProgramCache]: Analyzing trace with hash -802917662, now seen corresponding path program 1 times [2020-07-21 10:36:20,468 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:36:20,468 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1543543394] [2020-07-21 10:36:20,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:36:20,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:36:20,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 904 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-21 10:36:20,644 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:36:20,737 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-07-21 10:36:20,737 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:36:20,738 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1543543394] [2020-07-21 10:36:20,738 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:36:20,738 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-21 10:36:20,738 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289076764] [2020-07-21 10:36:20,739 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 10:36:20,739 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:36:20,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 10:36:20,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-21 10:36:20,740 INFO L87 Difference]: Start difference. First operand 411 states and 494 transitions. Second operand 8 states. [2020-07-21 10:36:21,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:36:21,164 INFO L93 Difference]: Finished difference Result 770 states and 939 transitions. [2020-07-21 10:36:21,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 10:36:21,165 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-07-21 10:36:21,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:36:21,170 INFO L225 Difference]: With dead ends: 770 [2020-07-21 10:36:21,170 INFO L226 Difference]: Without dead ends: 387 [2020-07-21 10:36:21,171 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 134 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-21 10:36:21,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2020-07-21 10:36:21,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 383. [2020-07-21 10:36:21,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 383 states. [2020-07-21 10:36:21,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 449 transitions. [2020-07-21 10:36:21,197 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 449 transitions. Word has length 142 [2020-07-21 10:36:21,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:36:21,198 INFO L479 AbstractCegarLoop]: Abstraction has 383 states and 449 transitions. [2020-07-21 10:36:21,198 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 10:36:21,198 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 449 transitions. [2020-07-21 10:36:21,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-07-21 10:36:21,200 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:36:21,200 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 10:36:21,415 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:36:21,416 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:36:21,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:36:21,417 INFO L82 PathProgramCache]: Analyzing trace with hash 433001157, now seen corresponding path program 1 times [2020-07-21 10:36:21,417 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:36:21,417 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [693608830] [2020-07-21 10:36:21,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:36:21,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:36:21,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 996 conjuncts, 19 conjunts are in the unsatisfiable core [2020-07-21 10:36:21,610 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:36:21,685 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 66 proven. 5 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-07-21 10:36:21,685 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 10:36:21,863 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 10:36:21,881 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 10:36:21,920 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 10:36:21,993 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 10:36:22,019 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 10:36:22,162 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 46 proven. 3 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2020-07-21 10:36:22,162 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [693608830] [2020-07-21 10:36:22,162 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 10:36:22,163 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 10 [2020-07-21 10:36:22,163 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391029903] [2020-07-21 10:36:22,163 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-21 10:36:22,164 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:36:22,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-21 10:36:22,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-07-21 10:36:22,164 INFO L87 Difference]: Start difference. First operand 383 states and 449 transitions. Second operand 10 states. [2020-07-21 10:36:23,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:36:23,444 INFO L93 Difference]: Finished difference Result 1709 states and 2410 transitions. [2020-07-21 10:36:23,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-21 10:36:23,445 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 178 [2020-07-21 10:36:23,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:36:23,454 INFO L225 Difference]: With dead ends: 1709 [2020-07-21 10:36:23,455 INFO L226 Difference]: Without dead ends: 1354 [2020-07-21 10:36:23,457 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 341 SyntacticMatches, 9 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=173, Unknown=0, NotChecked=0, Total=272 [2020-07-21 10:36:23,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1354 states. [2020-07-21 10:36:23,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1354 to 1044. [2020-07-21 10:36:23,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1044 states. [2020-07-21 10:36:23,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1044 states to 1044 states and 1276 transitions. [2020-07-21 10:36:23,532 INFO L78 Accepts]: Start accepts. Automaton has 1044 states and 1276 transitions. Word has length 178 [2020-07-21 10:36:23,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:36:23,533 INFO L479 AbstractCegarLoop]: Abstraction has 1044 states and 1276 transitions. [2020-07-21 10:36:23,533 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-21 10:36:23,533 INFO L276 IsEmpty]: Start isEmpty. Operand 1044 states and 1276 transitions. [2020-07-21 10:36:23,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-07-21 10:36:23,539 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:36:23,539 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 10:36:23,752 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:36:23,753 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:36:23,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:36:23,754 INFO L82 PathProgramCache]: Analyzing trace with hash 1302267231, now seen corresponding path program 1 times [2020-07-21 10:36:23,754 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:36:23,755 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1716189502] [2020-07-21 10:36:23,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:36:23,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:36:23,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 1001 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-21 10:36:23,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:36:24,031 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2020-07-21 10:36:24,032 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:36:24,032 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1716189502] [2020-07-21 10:36:24,032 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:36:24,032 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-21 10:36:24,033 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113055605] [2020-07-21 10:36:24,033 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 10:36:24,033 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:36:24,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 10:36:24,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-07-21 10:36:24,034 INFO L87 Difference]: Start difference. First operand 1044 states and 1276 transitions. Second operand 8 states. [2020-07-21 10:36:25,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:36:25,228 INFO L93 Difference]: Finished difference Result 2949 states and 3827 transitions. [2020-07-21 10:36:25,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-21 10:36:25,229 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 182 [2020-07-21 10:36:25,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:36:25,242 INFO L225 Difference]: With dead ends: 2949 [2020-07-21 10:36:25,242 INFO L226 Difference]: Without dead ends: 1933 [2020-07-21 10:36:25,246 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-07-21 10:36:25,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1933 states. [2020-07-21 10:36:25,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1933 to 1699. [2020-07-21 10:36:25,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1699 states. [2020-07-21 10:36:25,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1699 states to 1699 states and 2130 transitions. [2020-07-21 10:36:25,368 INFO L78 Accepts]: Start accepts. Automaton has 1699 states and 2130 transitions. Word has length 182 [2020-07-21 10:36:25,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:36:25,369 INFO L479 AbstractCegarLoop]: Abstraction has 1699 states and 2130 transitions. [2020-07-21 10:36:25,369 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 10:36:25,369 INFO L276 IsEmpty]: Start isEmpty. Operand 1699 states and 2130 transitions. [2020-07-21 10:36:25,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-07-21 10:36:25,377 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:36:25,377 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 10:36:25,590 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:36:25,591 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:36:25,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:36:25,592 INFO L82 PathProgramCache]: Analyzing trace with hash 1819204551, now seen corresponding path program 1 times [2020-07-21 10:36:25,592 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:36:25,593 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [408648526] [2020-07-21 10:36:25,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:36:25,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:36:25,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 994 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 10:36:25,890 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:36:25,938 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2020-07-21 10:36:25,938 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:36:25,939 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [408648526] [2020-07-21 10:36:25,940 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:36:25,940 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 10:36:25,940 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935032793] [2020-07-21 10:36:25,941 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 10:36:25,941 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:36:25,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 10:36:25,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-21 10:36:25,941 INFO L87 Difference]: Start difference. First operand 1699 states and 2130 transitions. Second operand 6 states. [2020-07-21 10:36:26,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:36:26,048 INFO L93 Difference]: Finished difference Result 3454 states and 4525 transitions. [2020-07-21 10:36:26,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 10:36:26,048 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 178 [2020-07-21 10:36:26,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:36:26,063 INFO L225 Difference]: With dead ends: 3454 [2020-07-21 10:36:26,063 INFO L226 Difference]: Without dead ends: 1783 [2020-07-21 10:36:26,069 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-21 10:36:26,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1783 states. [2020-07-21 10:36:26,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1783 to 1759. [2020-07-21 10:36:26,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1759 states. [2020-07-21 10:36:26,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1759 states to 1759 states and 2201 transitions. [2020-07-21 10:36:26,192 INFO L78 Accepts]: Start accepts. Automaton has 1759 states and 2201 transitions. Word has length 178 [2020-07-21 10:36:26,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:36:26,193 INFO L479 AbstractCegarLoop]: Abstraction has 1759 states and 2201 transitions. [2020-07-21 10:36:26,193 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 10:36:26,193 INFO L276 IsEmpty]: Start isEmpty. Operand 1759 states and 2201 transitions. [2020-07-21 10:36:26,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-07-21 10:36:26,199 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:36:26,200 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 10:36:26,413 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:36:26,414 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:36:26,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:36:26,415 INFO L82 PathProgramCache]: Analyzing trace with hash 1407098671, now seen corresponding path program 1 times [2020-07-21 10:36:26,416 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:36:26,416 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [225946413] [2020-07-21 10:36:26,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:36:26,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:36:26,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 1004 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-21 10:36:26,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:36:26,624 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2020-07-21 10:36:26,625 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:36:26,625 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [225946413] [2020-07-21 10:36:26,625 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:36:26,626 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 10:36:26,626 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469111723] [2020-07-21 10:36:26,626 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 10:36:26,626 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:36:26,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 10:36:26,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 10:36:26,627 INFO L87 Difference]: Start difference. First operand 1759 states and 2201 transitions. Second operand 5 states. [2020-07-21 10:36:26,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:36:26,717 INFO L93 Difference]: Finished difference Result 3196 states and 4086 transitions. [2020-07-21 10:36:26,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 10:36:26,718 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 182 [2020-07-21 10:36:26,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:36:26,728 INFO L225 Difference]: With dead ends: 3196 [2020-07-21 10:36:26,728 INFO L226 Difference]: Without dead ends: 1465 [2020-07-21 10:36:26,735 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 10:36:26,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1465 states. [2020-07-21 10:36:26,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1465 to 1444. [2020-07-21 10:36:26,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1444 states. [2020-07-21 10:36:26,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1444 states to 1444 states and 1776 transitions. [2020-07-21 10:36:26,860 INFO L78 Accepts]: Start accepts. Automaton has 1444 states and 1776 transitions. Word has length 182 [2020-07-21 10:36:26,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:36:26,860 INFO L479 AbstractCegarLoop]: Abstraction has 1444 states and 1776 transitions. [2020-07-21 10:36:26,861 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 10:36:26,861 INFO L276 IsEmpty]: Start isEmpty. Operand 1444 states and 1776 transitions. [2020-07-21 10:36:26,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-07-21 10:36:26,865 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:36:26,865 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 10:36:27,078 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:36:27,079 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:36:27,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:36:27,079 INFO L82 PathProgramCache]: Analyzing trace with hash -867778846, now seen corresponding path program 1 times [2020-07-21 10:36:27,079 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:36:27,079 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1571497664] [2020-07-21 10:36:27,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:36:27,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-21 10:36:27,325 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 10:36:27,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-21 10:36:27,414 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 10:36:27,848 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-21 10:36:27,849 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-21 10:36:28,063 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:36:28,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 10:36:28 BoogieIcfgContainer [2020-07-21 10:36:28,337 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 10:36:28,342 INFO L168 Benchmark]: Toolchain (without parser) took 14199.24 ms. Allocated memory was 138.4 MB in the beginning and 407.4 MB in the end (delta: 269.0 MB). Free memory was 102.0 MB in the beginning and 187.3 MB in the end (delta: -85.3 MB). Peak memory consumption was 183.7 MB. Max. memory is 7.1 GB. [2020-07-21 10:36:28,343 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 138.4 MB. Free memory was 121.5 MB in the beginning and 121.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 10:36:28,344 INFO L168 Benchmark]: CACSL2BoogieTranslator took 608.36 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 101.6 MB in the beginning and 170.4 MB in the end (delta: -68.8 MB). Peak memory consumption was 27.6 MB. Max. memory is 7.1 GB. [2020-07-21 10:36:28,345 INFO L168 Benchmark]: Boogie Preprocessor took 82.50 ms. Allocated memory is still 202.4 MB. Free memory was 170.4 MB in the beginning and 166.0 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. [2020-07-21 10:36:28,346 INFO L168 Benchmark]: RCFGBuilder took 1114.51 ms. Allocated memory was 202.4 MB in the beginning and 235.9 MB in the end (delta: 33.6 MB). Free memory was 166.0 MB in the beginning and 195.2 MB in the end (delta: -29.2 MB). Peak memory consumption was 83.0 MB. Max. memory is 7.1 GB. [2020-07-21 10:36:28,351 INFO L168 Benchmark]: TraceAbstraction took 12388.60 ms. Allocated memory was 235.9 MB in the beginning and 407.4 MB in the end (delta: 171.4 MB). Free memory was 195.2 MB in the beginning and 187.3 MB in the end (delta: 7.9 MB). Peak memory consumption was 179.4 MB. Max. memory is 7.1 GB. [2020-07-21 10:36:28,357 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 138.4 MB. Free memory was 121.5 MB in the beginning and 121.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 608.36 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 101.6 MB in the beginning and 170.4 MB in the end (delta: -68.8 MB). Peak memory consumption was 27.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 82.50 ms. Allocated memory is still 202.4 MB. Free memory was 170.4 MB in the beginning and 166.0 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1114.51 ms. Allocated memory was 202.4 MB in the beginning and 235.9 MB in the end (delta: 33.6 MB). Free memory was 166.0 MB in the beginning and 195.2 MB in the end (delta: -29.2 MB). Peak memory consumption was 83.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 12388.60 ms. Allocated memory was 235.9 MB in the beginning and 407.4 MB in the end (delta: 171.4 MB). Free memory was 195.2 MB in the beginning and 187.3 MB in the end (delta: 7.9 MB). Peak memory consumption was 179.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 844]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L486] int pumpRunning = 0; [L487] int systemActive = 1; [L666] int methAndRunningLastTime ; [L743] int cleanupTimeShifts = 4; [L850] int waterLevel = 1; [L851] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=78, \old(head)=93, \old(head)=33, \old(methAndRunningLastTime)=55, \old(methaneLevelCritical)=54, \old(pumpRunning)=97, \old(systemActive)=37, \old(waterLevel)=94, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L817] int retValue_acc ; [L818] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L822] FCALL select_helpers() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L823] FCALL select_features() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L824] CALL, EXPR valid_product() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L734] int retValue_acc ; [L737] retValue_acc = 1 [L738] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L824] RET, EXPR valid_product() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L824] tmp = valid_product() [L826] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L828] FCALL setup() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L829] CALL runTest() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L810] CALL __utac_acc__Specification2_spec__1() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L671] methAndRunningLastTime = 0 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L810] RET __utac_acc__Specification2_spec__1() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L811] CALL test() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L412] int splverifierCounter ; [L413] int tmp ; [L414] int tmp___0 ; [L415] int tmp___1 ; [L416] int tmp___2 ; [L419] splverifierCounter = 0 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L421] COND TRUE 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L423] COND TRUE splverifierCounter < 4 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L429] tmp = __VERIFIER_nondet_int() [L431] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L433] CALL waterRise() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L868] COND TRUE waterLevel < 2 [L869] waterLevel = waterLevel + 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L433] RET waterRise() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L439] tmp___0 = __VERIFIER_nondet_int() [L441] COND FALSE !(\read(tmp___0)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L449] tmp___2 = __VERIFIER_nondet_int() [L451] COND FALSE !(\read(tmp___2)) [L457] tmp___1 = __VERIFIER_nondet_int() [L459] COND TRUE \read(tmp___1) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L466] CALL timeShift() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L494] COND FALSE !(\read(pumpRunning)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L501] COND TRUE \read(systemActive) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L503] CALL processEnvironment() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L523] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L526] COND TRUE ! pumpRunning VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L528] CALL, EXPR isHighWaterLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L638] int retValue_acc ; [L639] int tmp ; [L640] int tmp___0 ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L644] CALL, EXPR isHighWaterSensorDry() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L930] int retValue_acc ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L933] COND FALSE !(waterLevel < 2) [L937] retValue_acc = 0 [L938] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L644] RET, EXPR isHighWaterSensorDry() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L644] tmp = isHighWaterSensorDry() [L646] COND FALSE !(\read(tmp)) [L649] tmp___0 = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L651] retValue_acc = tmp___0 [L652] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L528] RET, EXPR isHighWaterLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L528] tmp = isHighWaterLevel() [L530] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L532] CALL activatePump() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L557] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L561] CALL, EXPR isMethaneAlarm() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L582] int retValue_acc ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L586] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L889] int retValue_acc ; [L892] retValue_acc = methaneLevelCritical [L893] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L586] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L586] retValue_acc = isMethaneLevelCritical() [L588] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L561] RET, EXPR isMethaneAlarm() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L561] tmp = isMethaneAlarm() [L563] COND FALSE !(\read(tmp)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L567] CALL activatePump__wrappee__highWaterSensor() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L551] pumpRunning = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L567] RET activatePump__wrappee__highWaterSensor() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L532] RET activatePump() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L503] RET processEnvironment() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L509] CALL __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L676] int tmp ; [L677] int tmp___0 ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L681] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L889] int retValue_acc ; [L892] retValue_acc = methaneLevelCritical [L893] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=2] [L681] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L681] tmp = isMethaneLevelCritical() [L683] COND FALSE !(\read(tmp)) [L699] methAndRunningLastTime = 0 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L509] RET __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L466] RET timeShift() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L421] COND TRUE 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L423] COND TRUE splverifierCounter < 4 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L429] tmp = __VERIFIER_nondet_int() [L431] COND FALSE !(\read(tmp)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L439] tmp___0 = __VERIFIER_nondet_int() [L441] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___1=1, tmp___2=0, waterLevel=2] [L443] CALL changeMethaneLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L880] COND FALSE !(\read(methaneLevelCritical)) [L883] methaneLevelCritical = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L443] RET changeMethaneLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___1=1, tmp___2=0, waterLevel=2] [L449] tmp___2 = __VERIFIER_nondet_int() [L451] COND FALSE !(\read(tmp___2)) [L457] tmp___1 = __VERIFIER_nondet_int() [L459] COND TRUE \read(tmp___1) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___1=1, tmp___2=0, waterLevel=2] [L466] CALL timeShift() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L494] COND TRUE \read(pumpRunning) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L496] CALL lowerWaterLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L856] COND TRUE waterLevel > 0 [L857] waterLevel = waterLevel - 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L496] RET lowerWaterLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L501] COND TRUE \read(systemActive) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L503] CALL processEnvironment() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L523] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L526] COND FALSE !(! pumpRunning) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L541] FCALL processEnvironment__wrappee__base() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L503] RET processEnvironment() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L509] CALL __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L676] int tmp ; [L677] int tmp___0 ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L681] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L889] int retValue_acc ; [L892] retValue_acc = methaneLevelCritical [L893] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L681] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L681] tmp = isMethaneLevelCritical() [L683] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L685] CALL, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L593] int retValue_acc ; [L596] retValue_acc = pumpRunning [L597] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L685] RET, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L685] tmp___0 = isPumpRunning() [L687] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=1] [L688] COND FALSE !(\read(methAndRunningLastTime)) [L693] methAndRunningLastTime = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=1] [L509] RET __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L466] RET timeShift() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___1=1, tmp___2=0, waterLevel=1] [L421] COND TRUE 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___1=1, tmp___2=0, waterLevel=1] [L423] COND TRUE splverifierCounter < 4 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___1=1, tmp___2=0, waterLevel=1] [L429] tmp = __VERIFIER_nondet_int() [L431] COND FALSE !(\read(tmp)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___1=1, tmp___2=0, waterLevel=1] [L439] tmp___0 = __VERIFIER_nondet_int() [L441] COND FALSE !(\read(tmp___0)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=1] [L449] tmp___2 = __VERIFIER_nondet_int() [L451] COND FALSE !(\read(tmp___2)) [L457] tmp___1 = __VERIFIER_nondet_int() [L459] COND TRUE \read(tmp___1) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=1] [L466] CALL timeShift() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L494] COND TRUE \read(pumpRunning) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L496] CALL lowerWaterLevel() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L856] COND TRUE waterLevel > 0 [L857] waterLevel = waterLevel - 1 VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L496] RET lowerWaterLevel() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L501] COND TRUE \read(systemActive) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L503] CALL processEnvironment() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L523] int tmp ; VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L526] COND FALSE !(! pumpRunning) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L541] FCALL processEnvironment__wrappee__base() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L503] RET processEnvironment() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L509] CALL __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L676] int tmp ; [L677] int tmp___0 ; VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L681] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L889] int retValue_acc ; [L892] retValue_acc = methaneLevelCritical [L893] return (retValue_acc); VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L681] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L681] tmp = isMethaneLevelCritical() [L683] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=0] [L685] CALL, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L593] int retValue_acc ; [L596] retValue_acc = pumpRunning [L597] return (retValue_acc); VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L685] RET, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=0] [L685] tmp___0 = isPumpRunning() [L687] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=0] [L688] COND TRUE \read(methAndRunningLastTime) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=0] [L690] CALL __automaton_fail() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L844] __VERIFIER_error() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 231 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 12.0s, OverallIterations: 12, TraceHistogramMax: 4, AutomataDifference: 4.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1779 SDtfs, 1627 SDslu, 3001 SDs, 0 SdLazy, 2328 SolverSat, 819 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1665 GetRequests, 1594 SyntacticMatches, 11 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1759occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 11 MinimizatonAttempts, 702 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 1511 NumberOfCodeBlocks, 1511 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 1632 ConstructedInterpolants, 0 QuantifiedInterpolants, 422166 SizeOfPredicates, 30 NumberOfNonLiveVariables, 9379 ConjunctsInSsa, 121 ConjunctsInUnsatCore, 13 InterpolantComputations, 10 PerfectInterpolantSequences, 649/659 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...