/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product41.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 11:34:48,958 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 11:34:48,961 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 11:34:48,979 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 11:34:48,979 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 11:34:48,981 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 11:34:48,983 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 11:34:48,994 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 11:34:48,998 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 11:34:48,999 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 11:34:49,000 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 11:34:49,001 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 11:34:49,001 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 11:34:49,002 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 11:34:49,005 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 11:34:49,011 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 11:34:49,012 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 11:34:49,013 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 11:34:49,016 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 11:34:49,018 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 11:34:49,019 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 11:34:49,020 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 11:34:49,021 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 11:34:49,021 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 11:34:49,024 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-17 11:34:49,024 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-17 11:34:49,024 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-17 11:34:49,025 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-17 11:34:49,025 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-17 11:34:49,026 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-17 11:34:49,026 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-17 11:34:49,027 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-17 11:34:49,028 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-17 11:34:49,028 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-17 11:34:49,029 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-17 11:34:49,029 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-17 11:34:49,030 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-17 11:34:49,030 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-17 11:34:49,031 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 11:34:49,031 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 11:34:49,032 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 11:34:49,033 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 [2020-07-17 11:34:49,047 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 11:34:49,047 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 11:34:49,049 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-17 11:34:49,049 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-17 11:34:49,049 INFO L138 SettingsManager]: * Use SBE=true [2020-07-17 11:34:49,049 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 11:34:49,049 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 11:34:49,050 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 11:34:49,050 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 11:34:49,050 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 11:34:49,050 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 11:34:49,050 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 11:34:49,051 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 11:34:49,051 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 11:34:49,051 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 11:34:49,051 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 11:34:49,051 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 11:34:49,052 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 11:34:49,052 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-17 11:34:49,052 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 11:34:49,052 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 11:34:49,052 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 11:34:49,053 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 11:34:49,053 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-17 11:34:49,053 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-17 11:34:49,053 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-17 11:34:49,053 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-17 11:34:49,054 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 11:34:49,054 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-17 11:34:49,054 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-17 11:34:49,346 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 11:34:49,357 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 11:34:49,360 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 11:34:49,363 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 11:34:49,363 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 11:34:49,364 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product41.cil.c [2020-07-17 11:34:49,437 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cfa17d0df/d050e136cb8841c1b1a75cc2dbf3d265/FLAG7f96cc0b7 [2020-07-17 11:34:49,950 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 11:34:49,950 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product41.cil.c [2020-07-17 11:34:49,960 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cfa17d0df/d050e136cb8841c1b1a75cc2dbf3d265/FLAG7f96cc0b7 [2020-07-17 11:34:50,263 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cfa17d0df/d050e136cb8841c1b1a75cc2dbf3d265 [2020-07-17 11:34:50,273 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 11:34:50,276 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 11:34:50,277 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 11:34:50,277 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 11:34:50,281 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 11:34:50,282 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 11:34:50" (1/1) ... [2020-07-17 11:34:50,284 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@527465e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:34:50, skipping insertion in model container [2020-07-17 11:34:50,285 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 11:34:50" (1/1) ... [2020-07-17 11:34:50,292 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 11:34:50,351 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 11:34:50,650 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 11:34:50,664 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 11:34:50,856 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 11:34:50,892 INFO L208 MainTranslator]: Completed translation [2020-07-17 11:34:50,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:34:50 WrapperNode [2020-07-17 11:34:50,893 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 11:34:50,894 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 11:34:50,894 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 11:34:50,894 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 11:34:50,909 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:34:50" (1/1) ... [2020-07-17 11:34:50,910 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:34:50" (1/1) ... [2020-07-17 11:34:50,929 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:34:50" (1/1) ... [2020-07-17 11:34:50,930 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:34:50" (1/1) ... [2020-07-17 11:34:50,981 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:34:50" (1/1) ... [2020-07-17 11:34:50,999 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:34:50" (1/1) ... [2020-07-17 11:34:51,007 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:34:50" (1/1) ... [2020-07-17 11:34:51,019 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 11:34:51,019 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 11:34:51,019 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 11:34:51,019 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 11:34:51,020 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:34:50" (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 [2020-07-17 11:34:51,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 11:34:51,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 11:34:51,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-17 11:34:51,080 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-17 11:34:51,080 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-17 11:34:51,080 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-17 11:34:51,080 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-17 11:34:51,081 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-17 11:34:51,081 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-17 11:34:51,081 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-17 11:34:51,081 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-07-17 11:34:51,081 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-17 11:34:51,081 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-17 11:34:51,082 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-17 11:34:51,082 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-17 11:34:51,082 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-17 11:34:51,082 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-17 11:34:51,082 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-17 11:34:51,083 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-17 11:34:51,083 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-17 11:34:51,083 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-17 11:34:51,083 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-17 11:34:51,083 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-17 11:34:51,083 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-17 11:34:51,084 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-17 11:34:51,084 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-17 11:34:51,084 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-07-17 11:34:51,084 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-17 11:34:51,084 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-17 11:34:51,084 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-17 11:34:51,084 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-17 11:34:51,085 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-17 11:34:51,085 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-17 11:34:51,085 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-17 11:34:51,085 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-17 11:34:51,085 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-17 11:34:51,085 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-17 11:34:51,085 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 11:34:51,086 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 11:34:51,086 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-17 11:34:51,086 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-17 11:34:51,086 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-17 11:34:51,086 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-17 11:34:51,086 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-17 11:34:51,087 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-17 11:34:51,087 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-17 11:34:51,087 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-17 11:34:51,087 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-17 11:34:51,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-17 11:34:51,087 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-17 11:34:51,087 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-17 11:34:51,088 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-07-17 11:34:51,088 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-17 11:34:51,088 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-17 11:34:51,088 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-17 11:34:51,088 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-17 11:34:51,088 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-17 11:34:51,089 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-17 11:34:51,089 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-17 11:34:51,089 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-17 11:34:51,089 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-17 11:34:51,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-17 11:34:51,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-17 11:34:51,089 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-17 11:34:51,090 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-17 11:34:51,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-17 11:34:51,090 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-17 11:34:51,090 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-17 11:34:51,090 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-17 11:34:51,090 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-17 11:34:51,090 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-17 11:34:51,091 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-17 11:34:51,091 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-17 11:34:51,091 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-17 11:34:51,091 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-17 11:34:51,091 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-17 11:34:51,091 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-17 11:34:51,092 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-17 11:34:51,092 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-17 11:34:51,092 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-17 11:34:51,092 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-17 11:34:51,092 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-07-17 11:34:51,092 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-17 11:34:51,093 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-17 11:34:51,093 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-17 11:34:51,093 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-17 11:34:51,093 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 11:34:51,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 11:34:51,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-17 11:34:51,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 11:34:52,182 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 11:34:52,185 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-17 11:34:52,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 11:34:52 BoogieIcfgContainer [2020-07-17 11:34:52,192 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 11:34:52,195 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 11:34:52,195 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 11:34:52,198 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 11:34:52,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 11:34:50" (1/3) ... [2020-07-17 11:34:52,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@136a27a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 11:34:52, skipping insertion in model container [2020-07-17 11:34:52,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:34:50" (2/3) ... [2020-07-17 11:34:52,201 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@136a27a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 11:34:52, skipping insertion in model container [2020-07-17 11:34:52,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 11:34:52" (3/3) ... [2020-07-17 11:34:52,203 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product41.cil.c [2020-07-17 11:34:52,215 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-17 11:34:52,226 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 11:34:52,241 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 11:34:52,273 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 11:34:52,273 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 11:34:52,273 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-17 11:34:52,273 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 11:34:52,274 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 11:34:52,274 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 11:34:52,274 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 11:34:52,274 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 11:34:52,294 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states. [2020-07-17 11:34:52,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-17 11:34:52,302 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:34:52,303 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] [2020-07-17 11:34:52,304 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:34:52,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:34:52,310 INFO L82 PathProgramCache]: Analyzing trace with hash -219528545, now seen corresponding path program 1 times [2020-07-17 11:34:52,317 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:34:52,317 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583674154] [2020-07-17 11:34:52,318 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:34:52,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:52,998 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 11:34:53,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:53,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:53,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:53,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:53,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:53,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:53,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:53,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 11:34:53,096 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583674154] [2020-07-17 11:34:53,097 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 11:34:53,098 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-17 11:34:53,099 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925037037] [2020-07-17 11:34:53,107 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-17 11:34:53,111 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:34:53,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-17 11:34:53,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 11:34:53,130 INFO L87 Difference]: Start difference. First operand 163 states. Second operand 3 states. [2020-07-17 11:34:54,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:34:54,272 INFO L93 Difference]: Finished difference Result 281 states and 365 transitions. [2020-07-17 11:34:54,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-17 11:34:54,275 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-07-17 11:34:54,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:34:54,290 INFO L225 Difference]: With dead ends: 281 [2020-07-17 11:34:54,290 INFO L226 Difference]: Without dead ends: 152 [2020-07-17 11:34:54,295 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 11:34:54,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2020-07-17 11:34:54,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 120. [2020-07-17 11:34:54,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-07-17 11:34:54,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 139 transitions. [2020-07-17 11:34:54,420 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 139 transitions. Word has length 46 [2020-07-17 11:34:54,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:34:54,422 INFO L479 AbstractCegarLoop]: Abstraction has 120 states and 139 transitions. [2020-07-17 11:34:54,422 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-17 11:34:54,422 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 139 transitions. [2020-07-17 11:34:54,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-07-17 11:34:54,427 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:34:54,427 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 11:34:54,427 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 11:34:54,428 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:34:54,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:34:54,428 INFO L82 PathProgramCache]: Analyzing trace with hash 207659306, now seen corresponding path program 1 times [2020-07-17 11:34:54,428 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:34:54,429 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274690917] [2020-07-17 11:34:54,429 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:34:54,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:54,765 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 11:34:54,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:54,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:54,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:54,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:54,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:54,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:54,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:54,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 11:34:54,804 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274690917] [2020-07-17 11:34:54,804 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 11:34:54,804 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-17 11:34:54,805 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756905164] [2020-07-17 11:34:54,806 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-17 11:34:54,807 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:34:54,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-17 11:34:54,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-17 11:34:54,807 INFO L87 Difference]: Start difference. First operand 120 states and 139 transitions. Second operand 4 states. [2020-07-17 11:34:55,301 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 11:34:56,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:34:56,053 INFO L93 Difference]: Finished difference Result 214 states and 256 transitions. [2020-07-17 11:34:56,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-17 11:34:56,054 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-07-17 11:34:56,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:34:56,058 INFO L225 Difference]: With dead ends: 214 [2020-07-17 11:34:56,059 INFO L226 Difference]: Without dead ends: 136 [2020-07-17 11:34:56,060 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-17 11:34:56,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-07-17 11:34:56,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 111. [2020-07-17 11:34:56,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-07-17 11:34:56,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 127 transitions. [2020-07-17 11:34:56,095 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 127 transitions. Word has length 47 [2020-07-17 11:34:56,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:34:56,096 INFO L479 AbstractCegarLoop]: Abstraction has 111 states and 127 transitions. [2020-07-17 11:34:56,096 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-17 11:34:56,096 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 127 transitions. [2020-07-17 11:34:56,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-17 11:34:56,098 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:34:56,098 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] [2020-07-17 11:34:56,098 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 11:34:56,098 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:34:56,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:34:56,099 INFO L82 PathProgramCache]: Analyzing trace with hash 1269439858, now seen corresponding path program 1 times [2020-07-17 11:34:56,099 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:34:56,099 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901301646] [2020-07-17 11:34:56,100 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:34:56,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:56,395 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 11:34:56,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:56,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:56,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:56,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:56,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:56,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:56,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:56,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 11:34:56,551 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901301646] [2020-07-17 11:34:56,551 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 11:34:56,552 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-17 11:34:56,552 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227910944] [2020-07-17 11:34:56,553 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-17 11:34:56,554 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:34:56,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-17 11:34:56,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-17 11:34:56,554 INFO L87 Difference]: Start difference. First operand 111 states and 127 transitions. Second operand 8 states. [2020-07-17 11:34:57,004 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 11:34:57,337 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 11:34:57,591 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 11:34:57,861 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 11:34:58,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:34:58,911 INFO L93 Difference]: Finished difference Result 223 states and 270 transitions. [2020-07-17 11:34:58,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-17 11:34:58,912 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 51 [2020-07-17 11:34:58,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:34:58,915 INFO L225 Difference]: With dead ends: 223 [2020-07-17 11:34:58,916 INFO L226 Difference]: Without dead ends: 136 [2020-07-17 11:34:58,917 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-07-17 11:34:58,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-07-17 11:34:58,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 111. [2020-07-17 11:34:58,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-07-17 11:34:58,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 126 transitions. [2020-07-17 11:34:58,972 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 126 transitions. Word has length 51 [2020-07-17 11:34:58,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:34:58,972 INFO L479 AbstractCegarLoop]: Abstraction has 111 states and 126 transitions. [2020-07-17 11:34:58,973 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-17 11:34:58,973 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 126 transitions. [2020-07-17 11:34:58,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-07-17 11:34:58,976 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:34:58,976 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] [2020-07-17 11:34:58,978 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-17 11:34:58,978 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:34:58,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:34:58,979 INFO L82 PathProgramCache]: Analyzing trace with hash 6417079, now seen corresponding path program 1 times [2020-07-17 11:34:58,979 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:34:58,980 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963124601] [2020-07-17 11:34:58,981 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:34:59,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:59,310 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 11:34:59,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:59,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:59,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:59,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:59,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:59,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:59,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:59,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:59,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:59,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 11:34:59,380 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963124601] [2020-07-17 11:34:59,381 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 11:34:59,381 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-17 11:34:59,381 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331272034] [2020-07-17 11:34:59,382 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-17 11:34:59,382 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:34:59,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-17 11:34:59,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-17 11:34:59,382 INFO L87 Difference]: Start difference. First operand 111 states and 126 transitions. Second operand 6 states. [2020-07-17 11:34:59,739 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 11:35:00,896 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 11:35:01,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:35:01,317 INFO L93 Difference]: Finished difference Result 306 states and 374 transitions. [2020-07-17 11:35:01,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-17 11:35:01,318 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 59 [2020-07-17 11:35:01,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:35:01,322 INFO L225 Difference]: With dead ends: 306 [2020-07-17 11:35:01,322 INFO L226 Difference]: Without dead ends: 219 [2020-07-17 11:35:01,323 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-07-17 11:35:01,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2020-07-17 11:35:01,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 178. [2020-07-17 11:35:01,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2020-07-17 11:35:01,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 203 transitions. [2020-07-17 11:35:01,368 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 203 transitions. Word has length 59 [2020-07-17 11:35:01,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:35:01,369 INFO L479 AbstractCegarLoop]: Abstraction has 178 states and 203 transitions. [2020-07-17 11:35:01,369 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-17 11:35:01,369 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 203 transitions. [2020-07-17 11:35:01,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-07-17 11:35:01,371 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:35:01,372 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 11:35:01,372 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-17 11:35:01,372 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:35:01,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:35:01,372 INFO L82 PathProgramCache]: Analyzing trace with hash 1711068188, now seen corresponding path program 1 times [2020-07-17 11:35:01,373 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:35:01,373 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145045386] [2020-07-17 11:35:01,373 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:35:01,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:01,686 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 11:35:01,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:01,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:01,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:01,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:01,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:01,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:01,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:01,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:01,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:01,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:01,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:01,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 11:35:01,837 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145045386] [2020-07-17 11:35:01,838 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 11:35:01,838 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-17 11:35:01,839 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114236850] [2020-07-17 11:35:01,840 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-17 11:35:01,841 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:35:01,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-17 11:35:01,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2020-07-17 11:35:01,843 INFO L87 Difference]: Start difference. First operand 178 states and 203 transitions. Second operand 11 states. [2020-07-17 11:35:02,423 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 11:35:02,674 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 11:35:02,908 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 11:35:03,566 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 11:35:03,809 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 11:35:04,074 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 11:35:04,312 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 11:35:05,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:35:05,122 INFO L93 Difference]: Finished difference Result 374 states and 450 transitions. [2020-07-17 11:35:05,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-17 11:35:05,123 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 73 [2020-07-17 11:35:05,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:35:05,126 INFO L225 Difference]: With dead ends: 374 [2020-07-17 11:35:05,126 INFO L226 Difference]: Without dead ends: 220 [2020-07-17 11:35:05,127 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2020-07-17 11:35:05,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2020-07-17 11:35:05,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 183. [2020-07-17 11:35:05,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2020-07-17 11:35:05,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 208 transitions. [2020-07-17 11:35:05,169 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 208 transitions. Word has length 73 [2020-07-17 11:35:05,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:35:05,169 INFO L479 AbstractCegarLoop]: Abstraction has 183 states and 208 transitions. [2020-07-17 11:35:05,169 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-17 11:35:05,170 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 208 transitions. [2020-07-17 11:35:05,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-07-17 11:35:05,171 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:35:05,171 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 11:35:05,171 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-17 11:35:05,172 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:35:05,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:35:05,172 INFO L82 PathProgramCache]: Analyzing trace with hash -212159846, now seen corresponding path program 1 times [2020-07-17 11:35:05,172 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:35:05,172 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888207888] [2020-07-17 11:35:05,173 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:35:05,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:05,496 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 11:35:05,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:05,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:05,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:05,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:05,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:05,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:05,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:05,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:05,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:05,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:05,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:05,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 11:35:05,656 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888207888] [2020-07-17 11:35:05,657 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 11:35:05,657 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-07-17 11:35:05,657 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462580720] [2020-07-17 11:35:05,658 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-17 11:35:05,658 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:35:05,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-17 11:35:05,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-07-17 11:35:05,658 INFO L87 Difference]: Start difference. First operand 183 states and 208 transitions. Second operand 12 states. [2020-07-17 11:35:06,135 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 11:35:06,472 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 11:35:06,722 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 11:35:06,948 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 11:35:07,449 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 11:35:08,223 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 11:35:08,498 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 11:35:08,751 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 11:35:08,980 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 11:35:09,317 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 11:35:09,591 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 11:35:10,701 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 11:35:11,021 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 11:35:11,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:35:11,548 INFO L93 Difference]: Finished difference Result 656 states and 844 transitions. [2020-07-17 11:35:11,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-07-17 11:35:11,549 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 73 [2020-07-17 11:35:11,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:35:11,554 INFO L225 Difference]: With dead ends: 656 [2020-07-17 11:35:11,554 INFO L226 Difference]: Without dead ends: 497 [2020-07-17 11:35:11,556 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2020-07-17 11:35:11,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2020-07-17 11:35:11,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 439. [2020-07-17 11:35:11,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 439 states. [2020-07-17 11:35:11,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 513 transitions. [2020-07-17 11:35:11,659 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 513 transitions. Word has length 73 [2020-07-17 11:35:11,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:35:11,659 INFO L479 AbstractCegarLoop]: Abstraction has 439 states and 513 transitions. [2020-07-17 11:35:11,659 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-17 11:35:11,660 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 513 transitions. [2020-07-17 11:35:11,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-07-17 11:35:11,664 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:35:11,665 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 11:35:11,665 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-17 11:35:11,666 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:35:11,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:35:11,666 INFO L82 PathProgramCache]: Analyzing trace with hash -376475361, now seen corresponding path program 1 times [2020-07-17 11:35:11,666 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:35:11,667 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171775430] [2020-07-17 11:35:11,667 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:35:11,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:11,960 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 11:35:11,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:11,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:11,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:12,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:12,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:12,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:12,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:12,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:12,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:12,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:12,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:12,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:12,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:12,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:12,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:12,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:12,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:12,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:12,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:12,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:12,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:12,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:12,174 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-07-17 11:35:12,175 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171775430] [2020-07-17 11:35:12,175 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1464202988] [2020-07-17 11:35:12,175 INFO L94 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 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 11:35:12,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:12,411 INFO L264 TraceCheckSpWp]: Trace formula consists of 829 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-17 11:35:12,425 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-17 11:35:12,621 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 11:35:12,622 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-17 11:35:12,623 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 14 [2020-07-17 11:35:12,623 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777022177] [2020-07-17 11:35:12,624 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-17 11:35:12,624 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:35:12,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-17 11:35:12,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2020-07-17 11:35:12,625 INFO L87 Difference]: Start difference. First operand 439 states and 513 transitions. Second operand 8 states. [2020-07-17 11:35:14,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:35:14,117 INFO L93 Difference]: Finished difference Result 1038 states and 1344 transitions. [2020-07-17 11:35:14,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-17 11:35:14,118 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 132 [2020-07-17 11:35:14,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:35:14,126 INFO L225 Difference]: With dead ends: 1038 [2020-07-17 11:35:14,127 INFO L226 Difference]: Without dead ends: 738 [2020-07-17 11:35:14,131 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 174 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2020-07-17 11:35:14,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 738 states. [2020-07-17 11:35:14,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 738 to 666. [2020-07-17 11:35:14,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 666 states. [2020-07-17 11:35:14,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 666 states to 666 states and 810 transitions. [2020-07-17 11:35:14,349 INFO L78 Accepts]: Start accepts. Automaton has 666 states and 810 transitions. Word has length 132 [2020-07-17 11:35:14,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:35:14,349 INFO L479 AbstractCegarLoop]: Abstraction has 666 states and 810 transitions. [2020-07-17 11:35:14,349 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-17 11:35:14,349 INFO L276 IsEmpty]: Start isEmpty. Operand 666 states and 810 transitions. [2020-07-17 11:35:14,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-07-17 11:35:14,354 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:35:14,355 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 11:35:14,567 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-07-17 11:35:14,568 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:35:14,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:35:14,569 INFO L82 PathProgramCache]: Analyzing trace with hash -1223193695, now seen corresponding path program 1 times [2020-07-17 11:35:14,569 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:35:14,569 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689500967] [2020-07-17 11:35:14,569 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:35:14,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:14,879 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 11:35:14,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:14,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:14,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:14,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:14,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:14,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:14,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:14,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:15,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:15,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:15,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:15,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:15,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:15,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:15,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:15,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:15,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:15,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:15,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:15,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:15,098 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-07-17 11:35:15,098 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689500967] [2020-07-17 11:35:15,098 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1782725801] [2020-07-17 11:35:15,098 INFO L94 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 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 11:35:15,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:15,284 INFO L264 TraceCheckSpWp]: Trace formula consists of 813 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-17 11:35:15,298 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-17 11:35:15,329 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-17 11:35:15,330 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-17 11:35:15,330 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 12 [2020-07-17 11:35:15,330 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142869717] [2020-07-17 11:35:15,331 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-17 11:35:15,331 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:35:15,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-17 11:35:15,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-07-17 11:35:15,332 INFO L87 Difference]: Start difference. First operand 666 states and 810 transitions. Second operand 5 states. [2020-07-17 11:35:15,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:35:15,484 INFO L93 Difference]: Finished difference Result 1293 states and 1612 transitions. [2020-07-17 11:35:15,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-17 11:35:15,485 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 124 [2020-07-17 11:35:15,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:35:15,490 INFO L225 Difference]: With dead ends: 1293 [2020-07-17 11:35:15,490 INFO L226 Difference]: Without dead ends: 651 [2020-07-17 11:35:15,493 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-07-17 11:35:15,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states. [2020-07-17 11:35:15,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 651. [2020-07-17 11:35:15,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 651 states. [2020-07-17 11:35:15,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 651 states to 651 states and 790 transitions. [2020-07-17 11:35:15,645 INFO L78 Accepts]: Start accepts. Automaton has 651 states and 790 transitions. Word has length 124 [2020-07-17 11:35:15,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:35:15,645 INFO L479 AbstractCegarLoop]: Abstraction has 651 states and 790 transitions. [2020-07-17 11:35:15,645 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-17 11:35:15,646 INFO L276 IsEmpty]: Start isEmpty. Operand 651 states and 790 transitions. [2020-07-17 11:35:15,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-07-17 11:35:15,649 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:35:15,649 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 11:35:15,862 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 11:35:15,863 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:35:15,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:35:15,863 INFO L82 PathProgramCache]: Analyzing trace with hash -2062227357, now seen corresponding path program 1 times [2020-07-17 11:35:15,864 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:35:15,864 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121291140] [2020-07-17 11:35:15,864 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:35:15,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:16,195 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 11:35:16,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:16,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:16,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:16,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:16,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:16,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:16,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:16,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:16,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:16,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:16,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:16,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:16,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:16,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:16,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:16,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:16,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:16,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:16,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:16,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:16,448 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-07-17 11:35:16,448 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121291140] [2020-07-17 11:35:16,449 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1753685279] [2020-07-17 11:35:16,449 INFO L94 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 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 11:35:16,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:16,701 INFO L264 TraceCheckSpWp]: Trace formula consists of 812 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-17 11:35:16,709 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-17 11:35:16,777 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-17 11:35:16,779 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-17 11:35:16,779 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 10 [2020-07-17 11:35:16,780 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983977344] [2020-07-17 11:35:16,780 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-17 11:35:16,781 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:35:16,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-17 11:35:16,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-07-17 11:35:16,782 INFO L87 Difference]: Start difference. First operand 651 states and 790 transitions. Second operand 6 states. [2020-07-17 11:35:17,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:35:17,043 INFO L93 Difference]: Finished difference Result 1125 states and 1412 transitions. [2020-07-17 11:35:17,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-17 11:35:17,044 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 124 [2020-07-17 11:35:17,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:35:17,049 INFO L225 Difference]: With dead ends: 1125 [2020-07-17 11:35:17,049 INFO L226 Difference]: Without dead ends: 498 [2020-07-17 11:35:17,051 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 161 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-07-17 11:35:17,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2020-07-17 11:35:17,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 496. [2020-07-17 11:35:17,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 496 states. [2020-07-17 11:35:17,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 598 transitions. [2020-07-17 11:35:17,159 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 598 transitions. Word has length 124 [2020-07-17 11:35:17,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:35:17,160 INFO L479 AbstractCegarLoop]: Abstraction has 496 states and 598 transitions. [2020-07-17 11:35:17,160 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-17 11:35:17,160 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 598 transitions. [2020-07-17 11:35:17,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-07-17 11:35:17,162 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:35:17,162 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 11:35:17,376 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 11:35:17,377 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:35:17,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:35:17,377 INFO L82 PathProgramCache]: Analyzing trace with hash 1980525114, now seen corresponding path program 1 times [2020-07-17 11:35:17,377 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:35:17,378 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877952920] [2020-07-17 11:35:17,378 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:35:17,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:17,819 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 11:35:17,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:17,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:17,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:17,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:17,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:17,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:17,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:17,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:17,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:17,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:17,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:17,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:17,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:17,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:17,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:17,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:17,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:17,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:17,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:17,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:18,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:18,049 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-17 11:35:18,054 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877952920] [2020-07-17 11:35:18,055 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [766028813] [2020-07-17 11:35:18,055 INFO L94 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 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 11:35:18,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:35:18,244 INFO L264 TraceCheckSpWp]: Trace formula consists of 822 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-17 11:35:18,253 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-17 11:35:18,388 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 11:35:18,389 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-17 11:35:18,389 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 17 [2020-07-17 11:35:18,389 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942544139] [2020-07-17 11:35:18,390 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-07-17 11:35:18,390 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:35:18,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-07-17 11:35:18,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2020-07-17 11:35:18,391 INFO L87 Difference]: Start difference. First operand 496 states and 598 transitions. Second operand 17 states. [2020-07-17 11:35:19,013 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 11:35:19,692 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 11:35:20,679 WARN L193 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 188 [2020-07-17 11:35:20,974 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 11:35:21,235 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 11:35:21,743 WARN L193 SmtUtils]: Spent 480.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-07-17 11:35:22,039 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 11:35:22,303 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 11:35:23,184 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 11:35:23,434 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 11:35:24,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:35:24,240 INFO L93 Difference]: Finished difference Result 1009 states and 1284 transitions. [2020-07-17 11:35:24,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-07-17 11:35:24,241 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 128 [2020-07-17 11:35:24,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:35:24,245 INFO L225 Difference]: With dead ends: 1009 [2020-07-17 11:35:24,246 INFO L226 Difference]: Without dead ends: 587 [2020-07-17 11:35:24,249 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 171 SyntacticMatches, 4 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 332 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=345, Invalid=987, Unknown=0, NotChecked=0, Total=1332 [2020-07-17 11:35:24,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2020-07-17 11:35:24,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 484. [2020-07-17 11:35:24,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 484 states. [2020-07-17 11:35:24,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 582 transitions. [2020-07-17 11:35:24,351 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 582 transitions. Word has length 128 [2020-07-17 11:35:24,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:35:24,353 INFO L479 AbstractCegarLoop]: Abstraction has 484 states and 582 transitions. [2020-07-17 11:35:24,353 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-07-17 11:35:24,353 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 582 transitions. [2020-07-17 11:35:24,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-07-17 11:35:24,356 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:35:24,356 INFO L422 BasicCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 11:35:24,570 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 11:35:24,571 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:35:24,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:35:24,572 INFO L82 PathProgramCache]: Analyzing trace with hash 2141115904, now seen corresponding path program 2 times [2020-07-17 11:35:24,572 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:35:24,573 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066302397] [2020-07-17 11:35:24,573 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:35:24,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 11:35:24,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 11:35:24,919 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-17 11:35:24,919 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-17 11:35:24,919 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-07-17 11:35:25,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 11:35:25 BoogieIcfgContainer [2020-07-17 11:35:25,175 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 11:35:25,177 INFO L168 Benchmark]: Toolchain (without parser) took 34902.65 ms. Allocated memory was 137.9 MB in the beginning and 660.1 MB in the end (delta: 522.2 MB). Free memory was 101.0 MB in the beginning and 396.8 MB in the end (delta: -295.9 MB). Peak memory consumption was 226.3 MB. Max. memory is 7.1 GB. [2020-07-17 11:35:25,178 INFO L168 Benchmark]: CDTParser took 1.34 ms. Allocated memory is still 137.9 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-17 11:35:25,179 INFO L168 Benchmark]: CACSL2BoogieTranslator took 616.22 ms. Allocated memory was 137.9 MB in the beginning and 201.9 MB in the end (delta: 64.0 MB). Free memory was 100.6 MB in the beginning and 172.9 MB in the end (delta: -72.3 MB). Peak memory consumption was 29.9 MB. Max. memory is 7.1 GB. [2020-07-17 11:35:25,179 INFO L168 Benchmark]: Boogie Preprocessor took 125.08 ms. Allocated memory is still 201.9 MB. Free memory was 172.9 MB in the beginning and 168.4 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. [2020-07-17 11:35:25,180 INFO L168 Benchmark]: RCFGBuilder took 1173.76 ms. Allocated memory was 201.9 MB in the beginning and 233.8 MB in the end (delta: 32.0 MB). Free memory was 168.4 MB in the beginning and 200.4 MB in the end (delta: -32.0 MB). Peak memory consumption was 87.4 MB. Max. memory is 7.1 GB. [2020-07-17 11:35:25,181 INFO L168 Benchmark]: TraceAbstraction took 32980.68 ms. Allocated memory was 233.8 MB in the beginning and 660.1 MB in the end (delta: 426.2 MB). Free memory was 199.0 MB in the beginning and 396.8 MB in the end (delta: -197.9 MB). Peak memory consumption was 228.4 MB. Max. memory is 7.1 GB. [2020-07-17 11:35:25,184 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.34 ms. Allocated memory is still 137.9 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 616.22 ms. Allocated memory was 137.9 MB in the beginning and 201.9 MB in the end (delta: 64.0 MB). Free memory was 100.6 MB in the beginning and 172.9 MB in the end (delta: -72.3 MB). Peak memory consumption was 29.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 125.08 ms. Allocated memory is still 201.9 MB. Free memory was 172.9 MB in the beginning and 168.4 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1173.76 ms. Allocated memory was 201.9 MB in the beginning and 233.8 MB in the end (delta: 32.0 MB). Free memory was 168.4 MB in the beginning and 200.4 MB in the end (delta: -32.0 MB). Peak memory consumption was 87.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 32980.68 ms. Allocated memory was 233.8 MB in the beginning and 660.1 MB in the end (delta: 426.2 MB). Free memory was 199.0 MB in the beginning and 396.8 MB in the end (delta: -197.9 MB). Peak memory consumption was 228.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 211]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L47] int waterLevel = 1; [L48] int methaneLevelCritical = 0; [L385] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L652] int pumpRunning = 0; [L653] int systemActive = 1; [L822] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=175, \old(head)=176, \old(head)=167, \old(methaneLevelCritical)=141, \old(pumpRunning)=131, \old(systemActive)=130, \old(waterLevel)=138, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L895] int retValue_acc ; [L896] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L900] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L901] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L902] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L198] int retValue_acc ; [L201] retValue_acc = 1 [L202] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L902] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L902] tmp = valid_product() [L904] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L906] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L907] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L889] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L585] int splverifierCounter ; [L586] int tmp ; [L587] int tmp___0 ; [L588] int tmp___1 ; [L589] int tmp___2 ; [L592] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L594] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L596] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L602] tmp = __VERIFIER_nondet_int() [L604] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=1] [L606] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L65] COND TRUE waterLevel < 2 [L66] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L606] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=2] [L612] tmp___0 = __VERIFIER_nondet_int() [L614] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, waterLevel=2] [L622] tmp___2 = __VERIFIER_nondet_int() [L624] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___2=1, waterLevel=2] [L637] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L659] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L666] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L668] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L688] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L691] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L693] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L803] int retValue_acc ; [L804] int tmp ; [L805] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L809] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L127] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L130] COND FALSE !(waterLevel < 2) [L134] retValue_acc = 0 [L135] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L809] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L809] tmp = isHighWaterSensorDry() [L811] COND FALSE !(\read(tmp)) [L814] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L816] retValue_acc = tmp___0 [L817] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L693] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L693] tmp = isHighWaterLevel() [L695] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L697] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L722] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L726] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L747] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L751] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L751] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L751] retValue_acc = isMethaneLevelCritical() [L753] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L726] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L726] tmp = isMethaneAlarm() [L728] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L732] CALL activatePump__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L716] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L732] RET activatePump__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L697] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L668] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L674] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L144] int tmp ; [L145] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L149] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=2, systemActive=1, waterLevel=2] [L149] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L149] tmp = getWaterLevel() [L151] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=2, waterLevel=2] [L674] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L637] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___2=1, waterLevel=2] [L594] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___2=1, waterLevel=2] [L596] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___2=1, waterLevel=2] [L602] tmp = __VERIFIER_nondet_int() [L604] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L612] tmp___0 = __VERIFIER_nondet_int() [L614] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L622] tmp___2 = __VERIFIER_nondet_int() [L624] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L637] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L659] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L661] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L53] COND TRUE waterLevel > 0 [L54] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L661] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L666] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L668] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L688] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L691] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L706] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L668] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L674] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L144] int tmp ; [L145] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L149] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L149] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=1, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L149] tmp = getWaterLevel() [L151] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L674] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L637] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L594] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L596] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L602] tmp = __VERIFIER_nondet_int() [L604] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L612] tmp___0 = __VERIFIER_nondet_int() [L614] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L622] tmp___2 = __VERIFIER_nondet_int() [L624] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L637] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L659] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L661] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L53] COND TRUE waterLevel > 0 [L54] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L661] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L666] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L668] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L688] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L691] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L706] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L668] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L674] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L144] int tmp ; [L145] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L149] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L149] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, getWaterLevel()=0, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L149] tmp = getWaterLevel() [L151] COND TRUE tmp == 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L153] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L758] int retValue_acc ; [L761] retValue_acc = pumpRunning [L762] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L153] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L153] tmp___0 = isPumpRunning() [L155] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=0] [L157] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L211] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 222 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 32.6s, OverallIterations: 11, TraceHistogramMax: 3, AutomataDifference: 23.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1211 SDtfs, 2516 SDslu, 1961 SDs, 0 SdLazy, 5307 SolverSat, 1623 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 928 GetRequests, 786 SyntacticMatches, 9 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 539 ImplicationChecksByTransitivity, 12.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=666occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 10 MinimizatonAttempts, 395 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 4.8s InterpolantComputationTime, 1528 NumberOfCodeBlocks, 1528 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 1351 ConstructedInterpolants, 0 QuantifiedInterpolants, 402981 SizeOfPredicates, 12 NumberOfNonLiveVariables, 3276 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 14 InterpolantComputations, 9 PerfectInterpolantSequences, 178/200 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...