/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks NOT_INCREMENTALLY -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product50.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 10:35:25,964 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 10:35:25,966 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 10:35:25,978 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 10:35:25,979 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 10:35:25,980 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 10:35:25,981 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 10:35:25,983 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 10:35:25,985 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 10:35:25,986 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 10:35:25,987 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 10:35:25,988 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 10:35:25,988 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 10:35:25,989 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 10:35:25,991 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 10:35:25,992 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 10:35:25,993 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 10:35:25,993 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 10:35:25,995 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 10:35:25,997 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 10:35:25,999 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 10:35:26,000 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 10:35:26,001 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 10:35:26,002 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 10:35:26,004 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-21 10:35:26,005 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-21 10:35:26,005 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-21 10:35:26,006 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-21 10:35:26,006 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-21 10:35:26,007 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-21 10:35:26,007 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-21 10:35:26,008 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-21 10:35:26,009 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-21 10:35:26,010 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-21 10:35:26,011 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-21 10:35:26,011 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-21 10:35:26,012 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-21 10:35:26,012 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-21 10:35:26,012 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 10:35:26,013 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 10:35:26,014 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 10:35:26,015 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 10:35:26,028 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 10:35:26,029 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 10:35:26,030 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 10:35:26,030 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 10:35:26,031 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 10:35:26,031 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 10:35:26,031 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 10:35:26,031 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 10:35:26,031 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 10:35:26,032 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 10:35:26,032 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 10:35:26,032 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 10:35:26,032 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 10:35:26,032 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 10:35:26,032 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 10:35:26,033 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 10:35:26,033 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 10:35:26,033 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 10:35:26,033 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 10:35:26,033 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 10:35:26,034 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 10:35:26,034 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 10:35:26,034 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 10:35:26,034 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 10:35:26,034 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 10:35:26,035 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 10:35:26,035 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:35:26,035 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 10:35:26,035 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 10:35:26,035 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> NOT_INCREMENTALLY [2020-07-21 10:35:26,384 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 10:35:26,397 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 10:35:26,403 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 10:35:26,404 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 10:35:26,405 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 10:35:26,405 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product50.cil.c [2020-07-21 10:35:26,471 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d8d1b111/4732aec6ffef4f39b1f13bde624a76d0/FLAG4c36101b3 [2020-07-21 10:35:26,981 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 10:35:26,981 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product50.cil.c [2020-07-21 10:35:26,995 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d8d1b111/4732aec6ffef4f39b1f13bde624a76d0/FLAG4c36101b3 [2020-07-21 10:35:27,322 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d8d1b111/4732aec6ffef4f39b1f13bde624a76d0 [2020-07-21 10:35:27,331 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 10:35:27,333 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 10:35:27,334 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 10:35:27,334 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 10:35:27,337 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 10:35:27,339 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:35:27" (1/1) ... [2020-07-21 10:35:27,341 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d8eba15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:35:27, skipping insertion in model container [2020-07-21 10:35:27,342 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:35:27" (1/1) ... [2020-07-21 10:35:27,350 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 10:35:27,417 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 10:35:27,955 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 10:35:27,968 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 10:35:28,085 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 10:35:28,126 INFO L208 MainTranslator]: Completed translation [2020-07-21 10:35:28,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:35:28 WrapperNode [2020-07-21 10:35:28,127 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 10:35:28,129 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 10:35:28,129 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 10:35:28,129 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 10:35:28,141 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:35:28" (1/1) ... [2020-07-21 10:35:28,142 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:35:28" (1/1) ... [2020-07-21 10:35:28,159 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:35:28" (1/1) ... [2020-07-21 10:35:28,159 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:35:28" (1/1) ... [2020-07-21 10:35:28,193 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:35:28" (1/1) ... [2020-07-21 10:35:28,203 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:35:28" (1/1) ... [2020-07-21 10:35:28,209 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:35:28" (1/1) ... [2020-07-21 10:35:28,216 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 10:35:28,217 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 10:35:28,217 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 10:35:28,217 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 10:35:28,218 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:35:28" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 10:35:28,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 10:35:28,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 10:35:28,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-21 10:35:28,278 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-07-21 10:35:28,278 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-21 10:35:28,278 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-21 10:35:28,278 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-21 10:35:28,279 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-21 10:35:28,279 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-21 10:35:28,279 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-21 10:35:28,279 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-21 10:35:28,279 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-07-21 10:35:28,280 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-21 10:35:28,280 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-21 10:35:28,280 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-21 10:35:28,280 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-21 10:35:28,280 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 10:35:28,280 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-21 10:35:28,281 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-21 10:35:28,281 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-21 10:35:28,281 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-21 10:35:28,281 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-21 10:35:28,281 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-21 10:35:28,281 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-21 10:35:28,282 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-21 10:35:28,282 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-07-21 10:35:28,282 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-21 10:35:28,282 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-21 10:35:28,282 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-21 10:35:28,289 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-21 10:35:28,290 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-21 10:35:28,290 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-21 10:35:28,290 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-21 10:35:28,290 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-07-21 10:35:28,290 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-07-21 10:35:28,290 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-21 10:35:28,290 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-21 10:35:28,291 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-21 10:35:28,291 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-21 10:35:28,291 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-21 10:35:28,291 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-21 10:35:28,291 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 10:35:28,291 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 10:35:28,292 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-21 10:35:28,292 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-21 10:35:28,292 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-21 10:35:28,292 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-21 10:35:28,292 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-07-21 10:35:28,292 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-21 10:35:28,292 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-21 10:35:28,292 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-21 10:35:28,292 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-21 10:35:28,293 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-21 10:35:28,293 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-21 10:35:28,293 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-07-21 10:35:28,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-21 10:35:28,293 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-21 10:35:28,294 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-21 10:35:28,294 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-21 10:35:28,294 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-21 10:35:28,294 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-21 10:35:28,294 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-21 10:35:28,295 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-21 10:35:28,295 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-21 10:35:28,295 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-21 10:35:28,295 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-21 10:35:28,295 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 10:35:28,295 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-21 10:35:28,295 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-07-21 10:35:28,295 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-21 10:35:28,295 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-21 10:35:28,296 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-21 10:35:28,296 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-21 10:35:28,296 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-21 10:35:28,296 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-07-21 10:35:28,296 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-07-21 10:35:28,296 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-21 10:35:28,296 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-21 10:35:28,297 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-21 10:35:28,297 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-21 10:35:28,297 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-21 10:35:28,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-21 10:35:28,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-21 10:35:28,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-21 10:35:28,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-21 10:35:28,298 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-21 10:35:28,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-21 10:35:28,298 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-21 10:35:28,298 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-21 10:35:28,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-21 10:35:28,298 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-21 10:35:28,299 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-21 10:35:28,299 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-21 10:35:28,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 10:35:28,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-21 10:35:28,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 10:35:29,386 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 10:35:29,386 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-21 10:35:29,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:35:29 BoogieIcfgContainer [2020-07-21 10:35:29,392 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 10:35:29,393 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 10:35:29,393 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 10:35:29,396 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 10:35:29,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 10:35:27" (1/3) ... [2020-07-21 10:35:29,398 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56fe4549 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:35:29, skipping insertion in model container [2020-07-21 10:35:29,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:35:28" (2/3) ... [2020-07-21 10:35:29,398 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56fe4549 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:35:29, skipping insertion in model container [2020-07-21 10:35:29,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:35:29" (3/3) ... [2020-07-21 10:35:29,400 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product50.cil.c [2020-07-21 10:35:29,409 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 10:35:29,417 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 10:35:29,430 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 10:35:29,456 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 10:35:29,456 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 10:35:29,456 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 10:35:29,456 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 10:35:29,457 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 10:35:29,457 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 10:35:29,457 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 10:35:29,457 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 10:35:29,481 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states. [2020-07-21 10:35:29,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-21 10:35:29,491 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:35:29,492 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] [2020-07-21 10:35:29,492 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:35:29,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:35:29,497 INFO L82 PathProgramCache]: Analyzing trace with hash 1040081704, now seen corresponding path program 1 times [2020-07-21 10:35:29,506 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:35:29,507 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1223155570] [2020-07-21 10:35:29,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:35:29,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:35:29,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 648 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-21 10:35:29,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:35:29,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 10:35:29,815 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:35:29,816 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1223155570] [2020-07-21 10:35:29,817 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:35:29,818 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-21 10:35:29,819 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885148223] [2020-07-21 10:35:29,824 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-21 10:35:29,825 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:35:29,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-21 10:35:29,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 10:35:29,843 INFO L87 Difference]: Start difference. First operand 178 states. Second operand 2 states. [2020-07-21 10:35:29,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:35:29,892 INFO L93 Difference]: Finished difference Result 264 states and 325 transitions. [2020-07-21 10:35:29,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-21 10:35:29,895 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2020-07-21 10:35:29,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:35:29,911 INFO L225 Difference]: With dead ends: 264 [2020-07-21 10:35:29,911 INFO L226 Difference]: Without dead ends: 132 [2020-07-21 10:35:29,916 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 10:35:29,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-07-21 10:35:29,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2020-07-21 10:35:29,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-07-21 10:35:29,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 154 transitions. [2020-07-21 10:35:29,989 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 154 transitions. Word has length 46 [2020-07-21 10:35:29,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:35:29,990 INFO L479 AbstractCegarLoop]: Abstraction has 132 states and 154 transitions. [2020-07-21 10:35:29,990 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-21 10:35:29,990 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 154 transitions. [2020-07-21 10:35:29,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-07-21 10:35:29,998 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:35:29,998 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] [2020-07-21 10:35:30,212 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:35:30,212 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:35:30,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:35:30,213 INFO L82 PathProgramCache]: Analyzing trace with hash -849158610, now seen corresponding path program 1 times [2020-07-21 10:35:30,213 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:35:30,214 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [316190714] [2020-07-21 10:35:30,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:35:30,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:35:30,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 649 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-21 10:35:30,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:35:30,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 10:35:30,498 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:35:30,498 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [316190714] [2020-07-21 10:35:30,498 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:35:30,498 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 10:35:30,499 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371198426] [2020-07-21 10:35:30,500 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 10:35:30,501 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:35:30,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 10:35:30,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 10:35:30,501 INFO L87 Difference]: Start difference. First operand 132 states and 154 transitions. Second operand 3 states. [2020-07-21 10:35:30,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:35:30,524 INFO L93 Difference]: Finished difference Result 209 states and 243 transitions. [2020-07-21 10:35:30,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 10:35:30,525 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2020-07-21 10:35:30,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:35:30,527 INFO L225 Difference]: With dead ends: 209 [2020-07-21 10:35:30,528 INFO L226 Difference]: Without dead ends: 123 [2020-07-21 10:35:30,529 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 10:35:30,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2020-07-21 10:35:30,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2020-07-21 10:35:30,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-07-21 10:35:30,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 142 transitions. [2020-07-21 10:35:30,545 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 142 transitions. Word has length 47 [2020-07-21 10:35:30,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:35:30,546 INFO L479 AbstractCegarLoop]: Abstraction has 123 states and 142 transitions. [2020-07-21 10:35:30,546 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 10:35:30,546 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 142 transitions. [2020-07-21 10:35:30,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-21 10:35:30,548 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:35:30,548 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 10:35:30,761 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:35:30,762 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:35:30,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:35:30,762 INFO L82 PathProgramCache]: Analyzing trace with hash 846018297, now seen corresponding path program 1 times [2020-07-21 10:35:30,763 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:35:30,763 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1741874207] [2020-07-21 10:35:30,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:35:30,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:35:30,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 662 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 10:35:30,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:35:30,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 10:35:30,964 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:35:30,965 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1741874207] [2020-07-21 10:35:30,965 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:35:30,965 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 10:35:30,965 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331589351] [2020-07-21 10:35:30,966 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 10:35:30,966 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:35:30,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 10:35:30,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 10:35:30,967 INFO L87 Difference]: Start difference. First operand 123 states and 142 transitions. Second operand 3 states. [2020-07-21 10:35:30,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:35:30,986 INFO L93 Difference]: Finished difference Result 222 states and 261 transitions. [2020-07-21 10:35:30,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 10:35:30,986 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-07-21 10:35:30,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:35:30,989 INFO L225 Difference]: With dead ends: 222 [2020-07-21 10:35:30,990 INFO L226 Difference]: Without dead ends: 123 [2020-07-21 10:35:30,991 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 10:35:30,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2020-07-21 10:35:31,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2020-07-21 10:35:31,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-07-21 10:35:31,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 141 transitions. [2020-07-21 10:35:31,014 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 141 transitions. Word has length 52 [2020-07-21 10:35:31,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:35:31,014 INFO L479 AbstractCegarLoop]: Abstraction has 123 states and 141 transitions. [2020-07-21 10:35:31,014 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 10:35:31,015 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 141 transitions. [2020-07-21 10:35:31,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-07-21 10:35:31,022 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:35:31,023 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 10:35:31,223 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:35:31,223 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:35:31,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:35:31,224 INFO L82 PathProgramCache]: Analyzing trace with hash -1478840967, now seen corresponding path program 1 times [2020-07-21 10:35:31,224 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:35:31,224 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [536737563] [2020-07-21 10:35:31,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:35:31,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:35:31,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 685 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-21 10:35:31,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:35:31,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 10:35:31,503 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:35:31,504 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [536737563] [2020-07-21 10:35:31,504 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:35:31,504 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-21 10:35:31,505 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064918821] [2020-07-21 10:35:31,506 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 10:35:31,506 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:35:31,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 10:35:31,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-07-21 10:35:31,507 INFO L87 Difference]: Start difference. First operand 123 states and 141 transitions. Second operand 7 states. [2020-07-21 10:35:32,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:35:32,306 INFO L93 Difference]: Finished difference Result 304 states and 374 transitions. [2020-07-21 10:35:32,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-21 10:35:32,308 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 65 [2020-07-21 10:35:32,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:35:32,314 INFO L225 Difference]: With dead ends: 304 [2020-07-21 10:35:32,314 INFO L226 Difference]: Without dead ends: 205 [2020-07-21 10:35:32,319 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-07-21 10:35:32,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-07-21 10:35:32,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 188. [2020-07-21 10:35:32,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2020-07-21 10:35:32,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 219 transitions. [2020-07-21 10:35:32,369 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 219 transitions. Word has length 65 [2020-07-21 10:35:32,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:35:32,370 INFO L479 AbstractCegarLoop]: Abstraction has 188 states and 219 transitions. [2020-07-21 10:35:32,371 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 10:35:32,371 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 219 transitions. [2020-07-21 10:35:32,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-07-21 10:35:32,372 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:35:32,372 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, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 10:35:32,573 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:35:32,573 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:35:32,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:35:32,574 INFO L82 PathProgramCache]: Analyzing trace with hash -463455669, now seen corresponding path program 1 times [2020-07-21 10:35:32,574 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:35:32,574 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1481047271] [2020-07-21 10:35:32,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:35:32,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:35:32,729 INFO L263 TraceCheckSpWp]: Trace formula consists of 725 conjuncts, 23 conjunts are in the unsatisfiable core [2020-07-21 10:35:32,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:35:32,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 10:35:32,782 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:35:32,782 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1481047271] [2020-07-21 10:35:32,782 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:35:32,783 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 10:35:32,783 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562513010] [2020-07-21 10:35:32,784 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 10:35:32,785 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:35:32,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 10:35:32,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-21 10:35:32,785 INFO L87 Difference]: Start difference. First operand 188 states and 219 transitions. Second operand 6 states. [2020-07-21 10:35:33,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:35:33,068 INFO L93 Difference]: Finished difference Result 505 states and 614 transitions. [2020-07-21 10:35:33,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 10:35:33,072 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 80 [2020-07-21 10:35:33,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:35:33,082 INFO L225 Difference]: With dead ends: 505 [2020-07-21 10:35:33,083 INFO L226 Difference]: Without dead ends: 341 [2020-07-21 10:35:33,084 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-21 10:35:33,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2020-07-21 10:35:33,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 337. [2020-07-21 10:35:33,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 337 states. [2020-07-21 10:35:33,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 397 transitions. [2020-07-21 10:35:33,127 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 397 transitions. Word has length 80 [2020-07-21 10:35:33,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:35:33,128 INFO L479 AbstractCegarLoop]: Abstraction has 337 states and 397 transitions. [2020-07-21 10:35:33,128 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 10:35:33,128 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 397 transitions. [2020-07-21 10:35:33,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-07-21 10:35:33,130 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:35:33,130 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 10:35:33,345 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:35:33,346 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:35:33,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:35:33,347 INFO L82 PathProgramCache]: Analyzing trace with hash 453090503, now seen corresponding path program 1 times [2020-07-21 10:35:33,347 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:35:33,348 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1427642704] [2020-07-21 10:35:33,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:35:33,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:35:33,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 735 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 10:35:33,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:35:33,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 10:35:33,539 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:35:33,540 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1427642704] [2020-07-21 10:35:33,540 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:35:33,540 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 10:35:33,540 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618653718] [2020-07-21 10:35:33,541 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 10:35:33,541 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:35:33,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 10:35:33,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-21 10:35:33,542 INFO L87 Difference]: Start difference. First operand 337 states and 397 transitions. Second operand 6 states. [2020-07-21 10:35:33,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:35:33,589 INFO L93 Difference]: Finished difference Result 660 states and 794 transitions. [2020-07-21 10:35:33,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 10:35:33,590 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 84 [2020-07-21 10:35:33,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:35:33,593 INFO L225 Difference]: With dead ends: 660 [2020-07-21 10:35:33,593 INFO L226 Difference]: Without dead ends: 347 [2020-07-21 10:35:33,595 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-21 10:35:33,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2020-07-21 10:35:33,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 347. [2020-07-21 10:35:33,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 347 states. [2020-07-21 10:35:33,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 407 transitions. [2020-07-21 10:35:33,622 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 407 transitions. Word has length 84 [2020-07-21 10:35:33,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:35:33,623 INFO L479 AbstractCegarLoop]: Abstraction has 347 states and 407 transitions. [2020-07-21 10:35:33,623 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 10:35:33,623 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 407 transitions. [2020-07-21 10:35:33,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-07-21 10:35:33,625 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:35:33,625 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 10:35:33,839 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:35:33,840 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:35:33,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:35:33,841 INFO L82 PathProgramCache]: Analyzing trace with hash 475722757, now seen corresponding path program 1 times [2020-07-21 10:35:33,841 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:35:33,842 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2071404328] [2020-07-21 10:35:33,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:35:33,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:35:34,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 736 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-21 10:35:34,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:35:34,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 10:35:34,040 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:35:34,041 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2071404328] [2020-07-21 10:35:34,041 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:35:34,041 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 10:35:34,041 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631882879] [2020-07-21 10:35:34,042 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 10:35:34,042 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:35:34,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 10:35:34,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 10:35:34,043 INFO L87 Difference]: Start difference. First operand 347 states and 407 transitions. Second operand 5 states. [2020-07-21 10:35:34,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:35:34,072 INFO L93 Difference]: Finished difference Result 684 states and 832 transitions. [2020-07-21 10:35:34,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 10:35:34,073 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 84 [2020-07-21 10:35:34,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:35:34,076 INFO L225 Difference]: With dead ends: 684 [2020-07-21 10:35:34,076 INFO L226 Difference]: Without dead ends: 361 [2020-07-21 10:35:34,077 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 10:35:34,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2020-07-21 10:35:34,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 355. [2020-07-21 10:35:34,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 355 states. [2020-07-21 10:35:34,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 415 transitions. [2020-07-21 10:35:34,104 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 415 transitions. Word has length 84 [2020-07-21 10:35:34,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:35:34,105 INFO L479 AbstractCegarLoop]: Abstraction has 355 states and 415 transitions. [2020-07-21 10:35:34,105 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 10:35:34,105 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 415 transitions. [2020-07-21 10:35:34,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-07-21 10:35:34,106 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:35:34,107 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 10:35:34,319 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:35:34,320 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:35:34,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:35:34,321 INFO L82 PathProgramCache]: Analyzing trace with hash 1501214756, now seen corresponding path program 1 times [2020-07-21 10:35:34,322 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:35:34,322 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1827138339] [2020-07-21 10:35:34,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:35:34,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:35:34,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 736 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-21 10:35:34,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:35:34,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 10:35:34,547 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:35:34,547 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1827138339] [2020-07-21 10:35:34,548 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:35:34,548 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 10:35:34,548 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248572517] [2020-07-21 10:35:34,548 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 10:35:34,549 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:35:34,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 10:35:34,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 10:35:34,549 INFO L87 Difference]: Start difference. First operand 355 states and 415 transitions. Second operand 3 states. [2020-07-21 10:35:34,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:35:34,591 INFO L93 Difference]: Finished difference Result 961 states and 1193 transitions. [2020-07-21 10:35:34,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 10:35:34,593 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 84 [2020-07-21 10:35:34,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:35:34,597 INFO L225 Difference]: With dead ends: 961 [2020-07-21 10:35:34,597 INFO L226 Difference]: Without dead ends: 630 [2020-07-21 10:35:34,599 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 81 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 10:35:34,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2020-07-21 10:35:34,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 627. [2020-07-21 10:35:34,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 627 states. [2020-07-21 10:35:34,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 756 transitions. [2020-07-21 10:35:34,640 INFO L78 Accepts]: Start accepts. Automaton has 627 states and 756 transitions. Word has length 84 [2020-07-21 10:35:34,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:35:34,640 INFO L479 AbstractCegarLoop]: Abstraction has 627 states and 756 transitions. [2020-07-21 10:35:34,640 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 10:35:34,640 INFO L276 IsEmpty]: Start isEmpty. Operand 627 states and 756 transitions. [2020-07-21 10:35:34,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-07-21 10:35:34,642 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:35:34,643 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 10:35:34,856 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:35:34,857 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:35:34,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:35:34,857 INFO L82 PathProgramCache]: Analyzing trace with hash 1300385726, now seen corresponding path program 1 times [2020-07-21 10:35:34,857 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:35:34,858 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [116586757] [2020-07-21 10:35:34,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:35:35,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-21 10:35:35,049 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 10:35:35,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-21 10:35:35,139 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 10:35:35,437 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-21 10:35:35,437 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-21 10:35:35,651 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:35:35,818 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 10:35:35 BoogieIcfgContainer [2020-07-21 10:35:35,818 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 10:35:35,821 INFO L168 Benchmark]: Toolchain (without parser) took 8488.21 ms. Allocated memory was 142.1 MB in the beginning and 300.4 MB in the end (delta: 158.3 MB). Free memory was 98.4 MB in the beginning and 100.1 MB in the end (delta: -1.6 MB). Peak memory consumption was 156.7 MB. Max. memory is 7.1 GB. [2020-07-21 10:35:35,822 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 142.1 MB. Free memory was 118.4 MB in the beginning and 118.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 10:35:35,823 INFO L168 Benchmark]: CACSL2BoogieTranslator took 794.68 ms. Allocated memory was 142.1 MB in the beginning and 200.3 MB in the end (delta: 58.2 MB). Free memory was 98.0 MB in the beginning and 164.5 MB in the end (delta: -66.5 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2020-07-21 10:35:35,824 INFO L168 Benchmark]: Boogie Preprocessor took 87.87 ms. Allocated memory is still 200.3 MB. Free memory was 164.5 MB in the beginning and 160.3 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. [2020-07-21 10:35:35,824 INFO L168 Benchmark]: RCFGBuilder took 1174.91 ms. Allocated memory was 200.3 MB in the beginning and 227.5 MB in the end (delta: 27.3 MB). Free memory was 160.3 MB in the beginning and 189.7 MB in the end (delta: -29.4 MB). Peak memory consumption was 85.8 MB. Max. memory is 7.1 GB. [2020-07-21 10:35:35,825 INFO L168 Benchmark]: TraceAbstraction took 6425.47 ms. Allocated memory was 227.5 MB in the beginning and 300.4 MB in the end (delta: 72.9 MB). Free memory was 188.2 MB in the beginning and 100.1 MB in the end (delta: 88.2 MB). Peak memory consumption was 161.1 MB. Max. memory is 7.1 GB. [2020-07-21 10:35:35,829 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 142.1 MB. Free memory was 118.4 MB in the beginning and 118.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 794.68 ms. Allocated memory was 142.1 MB in the beginning and 200.3 MB in the end (delta: 58.2 MB). Free memory was 98.0 MB in the beginning and 164.5 MB in the end (delta: -66.5 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 87.87 ms. Allocated memory is still 200.3 MB. Free memory was 164.5 MB in the beginning and 160.3 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1174.91 ms. Allocated memory was 200.3 MB in the beginning and 227.5 MB in the end (delta: 27.3 MB). Free memory was 160.3 MB in the beginning and 189.7 MB in the end (delta: -29.4 MB). Peak memory consumption was 85.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 6425.47 ms. Allocated memory was 227.5 MB in the beginning and 300.4 MB in the end (delta: 72.9 MB). Free memory was 188.2 MB in the beginning and 100.1 MB in the end (delta: 88.2 MB). Peak memory consumption was 161.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 388]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L76] int waterLevel = 1; [L77] int methaneLevelCritical = 0; [L179] int cleanupTimeShifts = 4; [L395] int pumpRunning = 0; [L396] int systemActive = 1; [L769] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=71, \old(head)=63, \old(head)=56, \old(methaneLevelCritical)=36, \old(pumpRunning)=24, \old(systemActive)=26, \old(waterLevel)=93, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L258] int retValue_acc ; [L259] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L263] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L264] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L265] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L307] int retValue_acc ; [L310] retValue_acc = 1 [L311] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L265] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L265] tmp = valid_product() [L267] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L269] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L270] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L249] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L318] int splverifierCounter ; [L319] int tmp ; [L320] int tmp___0 ; [L321] int tmp___1 ; [L322] int tmp___2 ; [L325] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L327] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L329] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L335] tmp = __VERIFIER_nondet_int() [L337] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=1] [L339] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L94] COND TRUE waterLevel < 2 [L95] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L339] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=2] [L345] tmp___0 = __VERIFIER_nondet_int() [L347] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=1, waterLevel=2] [L349] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L106] COND FALSE !(\read(methaneLevelCritical)) [L109] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L349] RET changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=1, waterLevel=2] [L355] tmp___2 = __VERIFIER_nondet_int() [L357] COND FALSE !(\read(tmp___2)) [L363] tmp___1 = __VERIFIER_nondet_int() [L365] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=1, tmp___1=1, tmp___2=0, waterLevel=2] [L372] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L402] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L409] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L411] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L457] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L460] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L475] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L431] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L434] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L436] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L554] int retValue_acc ; [L555] int tmp ; [L556] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L560] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L156] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L159] COND FALSE !(waterLevel < 2) [L163] retValue_acc = 0 [L164] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L560] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L560] tmp = isHighWaterSensorDry() [L562] COND FALSE !(\read(tmp)) [L565] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L567] retValue_acc = tmp___0 [L568] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L436] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L436] tmp = isHighWaterLevel() [L438] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L440] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L485] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L440] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L475] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L411] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L417] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L44] int tmp ; [L45] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L49] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L115] int retValue_acc ; [L118] retValue_acc = methaneLevelCritical [L119] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L49] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L49] tmp = isMethaneLevelCritical() [L51] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L53] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L509] int retValue_acc ; [L512] retValue_acc = pumpRunning [L513] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L53] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L53] tmp___0 = isPumpRunning() [L55] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L57] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L388] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 239 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 6.1s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1190 SDtfs, 460 SDslu, 1956 SDs, 0 SdLazy, 546 SolverSat, 105 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 543 GetRequests, 515 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=627occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 30 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 630 NumberOfCodeBlocks, 630 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 534 ConstructedInterpolants, 0 QuantifiedInterpolants, 66046 SizeOfPredicates, 20 NumberOfNonLiveVariables, 5576 ConjunctsInSsa, 75 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...