/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_spec4_product34.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 10:37:42,298 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 10:37:42,301 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 10:37:42,319 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 10:37:42,319 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 10:37:42,321 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 10:37:42,323 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 10:37:42,334 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 10:37:42,338 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 10:37:42,341 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 10:37:42,342 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 10:37:42,343 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 10:37:42,344 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 10:37:42,344 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 10:37:42,346 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 10:37:42,347 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 10:37:42,348 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 10:37:42,351 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 10:37:42,353 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 10:37:42,359 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 10:37:42,363 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 10:37:42,366 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 10:37:42,368 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 10:37:42,368 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 10:37:42,371 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-21 10:37:42,372 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-21 10:37:42,372 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-21 10:37:42,375 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-21 10:37:42,377 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-21 10:37:42,378 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-21 10:37:42,378 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-21 10:37:42,380 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-21 10:37:42,381 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-21 10:37:42,382 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-21 10:37:42,385 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-21 10:37:42,385 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-21 10:37:42,386 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-21 10:37:42,386 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-21 10:37:42,386 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 10:37:42,387 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 10:37:42,388 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 10:37:42,389 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 10:37:42,423 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 10:37:42,423 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 10:37:42,425 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 10:37:42,425 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 10:37:42,425 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 10:37:42,425 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 10:37:42,425 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 10:37:42,426 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 10:37:42,426 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 10:37:42,426 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 10:37:42,426 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 10:37:42,431 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 10:37:42,432 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 10:37:42,432 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 10:37:42,432 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 10:37:42,432 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 10:37:42,432 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 10:37:42,432 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 10:37:42,433 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 10:37:42,433 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 10:37:42,433 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 10:37:42,433 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 10:37:42,433 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 10:37:42,433 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 10:37:42,434 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 10:37:42,434 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 10:37:42,434 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:37:42,434 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 10:37:42,434 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 10:37:42,434 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 10:37:42,714 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 10:37:42,735 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 10:37:42,740 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 10:37:42,742 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 10:37:42,743 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 10:37:42,743 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product34.cil.c [2020-07-21 10:37:42,820 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4331691f9/cb0dbf7b77654cd98378d1ccd635e1e7/FLAG6dfe349e4 [2020-07-21 10:37:43,304 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 10:37:43,304 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product34.cil.c [2020-07-21 10:37:43,321 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4331691f9/cb0dbf7b77654cd98378d1ccd635e1e7/FLAG6dfe349e4 [2020-07-21 10:37:43,795 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4331691f9/cb0dbf7b77654cd98378d1ccd635e1e7 [2020-07-21 10:37:43,803 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 10:37:43,806 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 10:37:43,808 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 10:37:43,809 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 10:37:43,812 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 10:37:43,813 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:37:43" (1/1) ... [2020-07-21 10:37:43,816 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51d70279 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:37:43, skipping insertion in model container [2020-07-21 10:37:43,816 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:37:43" (1/1) ... [2020-07-21 10:37:43,823 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 10:37:43,875 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 10:37:44,329 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 10:37:44,341 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 10:37:44,465 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 10:37:44,500 INFO L208 MainTranslator]: Completed translation [2020-07-21 10:37:44,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:37:44 WrapperNode [2020-07-21 10:37:44,501 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 10:37:44,501 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 10:37:44,502 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 10:37:44,502 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 10:37:44,513 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:37:44" (1/1) ... [2020-07-21 10:37:44,513 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:37:44" (1/1) ... [2020-07-21 10:37:44,533 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:37:44" (1/1) ... [2020-07-21 10:37:44,533 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:37:44" (1/1) ... [2020-07-21 10:37:44,565 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:37:44" (1/1) ... [2020-07-21 10:37:44,576 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:37:44" (1/1) ... [2020-07-21 10:37:44,581 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:37:44" (1/1) ... [2020-07-21 10:37:44,588 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 10:37:44,589 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 10:37:44,589 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 10:37:44,589 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 10:37:44,590 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:37:44" (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 10:37:44,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 10:37:44,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 10:37:44,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-21 10:37:44,666 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-07-21 10:37:44,667 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-21 10:37:44,667 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-21 10:37:44,667 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-21 10:37:44,667 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-21 10:37:44,667 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 10:37:44,667 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-21 10:37:44,668 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-21 10:37:44,668 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-21 10:37:44,668 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-21 10:37:44,668 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-21 10:37:44,668 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-21 10:37:44,669 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-21 10:37:44,669 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-21 10:37:44,669 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-21 10:37:44,669 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-21 10:37:44,669 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-21 10:37:44,670 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-21 10:37:44,670 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-21 10:37:44,670 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-21 10:37:44,670 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-07-21 10:37:44,671 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-21 10:37:44,671 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-21 10:37:44,671 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-21 10:37:44,671 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-21 10:37:44,671 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-21 10:37:44,672 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-21 10:37:44,672 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-21 10:37:44,672 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-21 10:37:44,672 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-21 10:37:44,672 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-21 10:37:44,673 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-21 10:37:44,673 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-21 10:37:44,673 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-21 10:37:44,673 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-21 10:37:44,673 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 10:37:44,674 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 10:37:44,674 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-21 10:37:44,674 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-21 10:37:44,674 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-21 10:37:44,674 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-21 10:37:44,675 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-07-21 10:37:44,675 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-21 10:37:44,675 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-21 10:37:44,675 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-21 10:37:44,675 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-21 10:37:44,675 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-21 10:37:44,675 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-21 10:37:44,676 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-21 10:37:44,676 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-21 10:37:44,676 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-21 10:37:44,676 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-21 10:37:44,676 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-21 10:37:44,676 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-21 10:37:44,676 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 10:37:44,677 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-21 10:37:44,677 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-07-21 10:37:44,677 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-21 10:37:44,677 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-21 10:37:44,677 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-21 10:37:44,678 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-21 10:37:44,678 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-21 10:37:44,678 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-21 10:37:44,678 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-21 10:37:44,678 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-21 10:37:44,678 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-21 10:37:44,678 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-21 10:37:44,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-21 10:37:44,679 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-21 10:37:44,679 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-21 10:37:44,679 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-21 10:37:44,679 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-21 10:37:44,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-21 10:37:44,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-21 10:37:44,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-21 10:37:44,680 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-21 10:37:44,680 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-21 10:37:44,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-21 10:37:44,680 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-21 10:37:44,680 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-21 10:37:44,681 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-21 10:37:44,681 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-21 10:37:44,681 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-21 10:37:44,681 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-21 10:37:44,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 10:37:44,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-21 10:37:44,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 10:37:45,762 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 10:37:45,763 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-21 10:37:45,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:37:45 BoogieIcfgContainer [2020-07-21 10:37:45,768 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 10:37:45,769 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 10:37:45,769 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 10:37:45,772 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 10:37:45,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 10:37:43" (1/3) ... [2020-07-21 10:37:45,773 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@182f01c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:37:45, skipping insertion in model container [2020-07-21 10:37:45,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:37:44" (2/3) ... [2020-07-21 10:37:45,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@182f01c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:37:45, skipping insertion in model container [2020-07-21 10:37:45,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:37:45" (3/3) ... [2020-07-21 10:37:45,775 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product34.cil.c [2020-07-21 10:37:45,785 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 10:37:45,793 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 10:37:45,807 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 10:37:45,831 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 10:37:45,832 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 10:37:45,832 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 10:37:45,832 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 10:37:45,832 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 10:37:45,832 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 10:37:45,832 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 10:37:45,833 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 10:37:45,853 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states. [2020-07-21 10:37:45,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-21 10:37:45,861 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:37:45,862 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 10:37:45,863 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:37:45,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:37:45,868 INFO L82 PathProgramCache]: Analyzing trace with hash -368094870, now seen corresponding path program 1 times [2020-07-21 10:37:45,875 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:37:45,876 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [155704043] [2020-07-21 10:37:45,876 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 10:37:46,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:37:46,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 649 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-21 10:37:46,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:37:46,202 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 10:37:46,202 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:37:46,203 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [155704043] [2020-07-21 10:37:46,204 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:37:46,204 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-21 10:37:46,206 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574174062] [2020-07-21 10:37:46,215 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-21 10:37:46,216 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:37:46,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-21 10:37:46,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 10:37:46,233 INFO L87 Difference]: Start difference. First operand 152 states. Second operand 2 states. [2020-07-21 10:37:46,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:37:46,271 INFO L93 Difference]: Finished difference Result 218 states and 271 transitions. [2020-07-21 10:37:46,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-21 10:37:46,273 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2020-07-21 10:37:46,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:37:46,288 INFO L225 Difference]: With dead ends: 218 [2020-07-21 10:37:46,289 INFO L226 Difference]: Without dead ends: 109 [2020-07-21 10:37:46,293 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 10:37:46,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-07-21 10:37:46,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-07-21 10:37:46,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-07-21 10:37:46,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 127 transitions. [2020-07-21 10:37:46,353 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 127 transitions. Word has length 46 [2020-07-21 10:37:46,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:37:46,354 INFO L479 AbstractCegarLoop]: Abstraction has 109 states and 127 transitions. [2020-07-21 10:37:46,354 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-21 10:37:46,354 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 127 transitions. [2020-07-21 10:37:46,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-07-21 10:37:46,357 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:37:46,358 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 10:37:46,562 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:37:46,563 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:37:46,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:37:46,564 INFO L82 PathProgramCache]: Analyzing trace with hash -1630578526, now seen corresponding path program 1 times [2020-07-21 10:37:46,565 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:37:46,565 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [498597651] [2020-07-21 10:37:46,565 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 10:37:46,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:37:46,814 INFO L263 TraceCheckSpWp]: Trace formula consists of 650 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-21 10:37:46,825 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:37:46,875 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 10:37:46,875 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:37:46,875 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [498597651] [2020-07-21 10:37:46,876 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:37:46,876 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 10:37:46,876 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539114870] [2020-07-21 10:37:46,878 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 10:37:46,878 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:37:46,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 10:37:46,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 10:37:46,879 INFO L87 Difference]: Start difference. First operand 109 states and 127 transitions. Second operand 3 states. [2020-07-21 10:37:46,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:37:46,919 INFO L93 Difference]: Finished difference Result 163 states and 189 transitions. [2020-07-21 10:37:46,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 10:37:46,920 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2020-07-21 10:37:46,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:37:46,923 INFO L225 Difference]: With dead ends: 163 [2020-07-21 10:37:46,924 INFO L226 Difference]: Without dead ends: 100 [2020-07-21 10:37:46,925 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 10:37:46,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2020-07-21 10:37:46,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2020-07-21 10:37:46,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-07-21 10:37:46,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 115 transitions. [2020-07-21 10:37:46,952 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 115 transitions. Word has length 47 [2020-07-21 10:37:46,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:37:46,952 INFO L479 AbstractCegarLoop]: Abstraction has 100 states and 115 transitions. [2020-07-21 10:37:46,952 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 10:37:46,952 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 115 transitions. [2020-07-21 10:37:46,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-21 10:37:46,960 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:37:46,960 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 10:37:47,176 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:37:47,177 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:37:47,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:37:47,178 INFO L82 PathProgramCache]: Analyzing trace with hash 1910957979, now seen corresponding path program 1 times [2020-07-21 10:37:47,179 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:37:47,179 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [533443845] [2020-07-21 10:37:47,179 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 10:37:47,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:37:47,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 663 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 10:37:47,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:37:47,389 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 10:37:47,389 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:37:47,390 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [533443845] [2020-07-21 10:37:47,390 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:37:47,390 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 10:37:47,391 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527344062] [2020-07-21 10:37:47,391 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 10:37:47,391 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:37:47,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 10:37:47,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 10:37:47,392 INFO L87 Difference]: Start difference. First operand 100 states and 115 transitions. Second operand 3 states. [2020-07-21 10:37:47,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:37:47,413 INFO L93 Difference]: Finished difference Result 176 states and 207 transitions. [2020-07-21 10:37:47,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 10:37:47,414 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-07-21 10:37:47,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:37:47,416 INFO L225 Difference]: With dead ends: 176 [2020-07-21 10:37:47,416 INFO L226 Difference]: Without dead ends: 100 [2020-07-21 10:37:47,417 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 10:37:47,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2020-07-21 10:37:47,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2020-07-21 10:37:47,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-07-21 10:37:47,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 114 transitions. [2020-07-21 10:37:47,433 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 114 transitions. Word has length 52 [2020-07-21 10:37:47,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:37:47,433 INFO L479 AbstractCegarLoop]: Abstraction has 100 states and 114 transitions. [2020-07-21 10:37:47,433 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 10:37:47,433 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 114 transitions. [2020-07-21 10:37:47,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-07-21 10:37:47,437 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:37:47,437 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] [2020-07-21 10:37:47,652 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:37:47,653 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:37:47,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:37:47,654 INFO L82 PathProgramCache]: Analyzing trace with hash 2015382800, now seen corresponding path program 1 times [2020-07-21 10:37:47,654 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:37:47,655 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1111472842] [2020-07-21 10:37:47,655 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 10:37:47,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:37:47,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 676 conjuncts, 14 conjunts are in the unsatisfiable core [2020-07-21 10:37:47,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:37:47,907 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 10:37:47,908 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:37:47,909 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1111472842] [2020-07-21 10:37:47,909 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:37:47,909 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 10:37:47,909 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493761296] [2020-07-21 10:37:47,910 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 10:37:47,916 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:37:47,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 10:37:47,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-21 10:37:47,917 INFO L87 Difference]: Start difference. First operand 100 states and 114 transitions. Second operand 6 states. [2020-07-21 10:37:48,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:37:48,187 INFO L93 Difference]: Finished difference Result 241 states and 294 transitions. [2020-07-21 10:37:48,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 10:37:48,187 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 60 [2020-07-21 10:37:48,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:37:48,191 INFO L225 Difference]: With dead ends: 241 [2020-07-21 10:37:48,191 INFO L226 Difference]: Without dead ends: 165 [2020-07-21 10:37:48,192 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 55 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 10:37:48,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2020-07-21 10:37:48,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2020-07-21 10:37:48,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2020-07-21 10:37:48,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 198 transitions. [2020-07-21 10:37:48,213 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 198 transitions. Word has length 60 [2020-07-21 10:37:48,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:37:48,214 INFO L479 AbstractCegarLoop]: Abstraction has 165 states and 198 transitions. [2020-07-21 10:37:48,214 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 10:37:48,214 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 198 transitions. [2020-07-21 10:37:48,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-07-21 10:37:48,216 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:37:48,216 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 10:37:48,429 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:37:48,430 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:37:48,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:37:48,430 INFO L82 PathProgramCache]: Analyzing trace with hash -726769290, now seen corresponding path program 1 times [2020-07-21 10:37:48,431 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:37:48,431 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [294915188] [2020-07-21 10:37:48,431 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 10:37:48,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:37:48,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 685 conjuncts, 31 conjunts are in the unsatisfiable core [2020-07-21 10:37:48,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:37:48,695 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 10:37:48,696 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:37:48,696 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [294915188] [2020-07-21 10:37:48,696 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:37:48,697 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-21 10:37:48,697 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396749762] [2020-07-21 10:37:48,698 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 10:37:48,699 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:37:48,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 10:37:48,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-07-21 10:37:48,699 INFO L87 Difference]: Start difference. First operand 165 states and 198 transitions. Second operand 7 states. [2020-07-21 10:37:49,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:37:49,355 INFO L93 Difference]: Finished difference Result 413 states and 530 transitions. [2020-07-21 10:37:49,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-21 10:37:49,357 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 64 [2020-07-21 10:37:49,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:37:49,360 INFO L225 Difference]: With dead ends: 413 [2020-07-21 10:37:49,360 INFO L226 Difference]: Without dead ends: 272 [2020-07-21 10:37:49,361 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-07-21 10:37:49,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2020-07-21 10:37:49,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 255. [2020-07-21 10:37:49,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2020-07-21 10:37:49,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 314 transitions. [2020-07-21 10:37:49,389 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 314 transitions. Word has length 64 [2020-07-21 10:37:49,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:37:49,390 INFO L479 AbstractCegarLoop]: Abstraction has 255 states and 314 transitions. [2020-07-21 10:37:49,390 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 10:37:49,390 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 314 transitions. [2020-07-21 10:37:49,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-07-21 10:37:49,392 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:37:49,392 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:37:49,605 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:37:49,606 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:37:49,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:37:49,607 INFO L82 PathProgramCache]: Analyzing trace with hash 1676762157, now seen corresponding path program 1 times [2020-07-21 10:37:49,607 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:37:49,608 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [20475505] [2020-07-21 10:37:49,608 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 10:37:49,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:37:49,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 799 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 10:37:49,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:37:49,807 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 10:37:49,808 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:37:49,808 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [20475505] [2020-07-21 10:37:49,808 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:37:49,808 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 10:37:49,809 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810750725] [2020-07-21 10:37:49,809 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 10:37:49,809 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:37:49,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 10:37:49,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-21 10:37:49,810 INFO L87 Difference]: Start difference. First operand 255 states and 314 transitions. Second operand 6 states. [2020-07-21 10:37:49,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:37:49,857 INFO L93 Difference]: Finished difference Result 496 states and 629 transitions. [2020-07-21 10:37:49,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 10:37:49,857 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 111 [2020-07-21 10:37:49,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:37:49,860 INFO L225 Difference]: With dead ends: 496 [2020-07-21 10:37:49,860 INFO L226 Difference]: Without dead ends: 265 [2020-07-21 10:37:49,861 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 106 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 10:37:49,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2020-07-21 10:37:49,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 265. [2020-07-21 10:37:49,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states. [2020-07-21 10:37:49,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 325 transitions. [2020-07-21 10:37:49,884 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 325 transitions. Word has length 111 [2020-07-21 10:37:49,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:37:49,885 INFO L479 AbstractCegarLoop]: Abstraction has 265 states and 325 transitions. [2020-07-21 10:37:49,885 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 10:37:49,885 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 325 transitions. [2020-07-21 10:37:49,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-07-21 10:37:49,890 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:37:49,890 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:37:50,090 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:37:50,091 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:37:50,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:37:50,091 INFO L82 PathProgramCache]: Analyzing trace with hash 1622369259, now seen corresponding path program 1 times [2020-07-21 10:37:50,092 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:37:50,092 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [333188397] [2020-07-21 10:37:50,092 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 10:37:50,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:37:50,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 800 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-21 10:37:50,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:37:50,358 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 10:37:50,358 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:37:50,359 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [333188397] [2020-07-21 10:37:50,359 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:37:50,360 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 10:37:50,360 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193490512] [2020-07-21 10:37:50,363 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 10:37:50,364 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:37:50,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 10:37:50,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 10:37:50,365 INFO L87 Difference]: Start difference. First operand 265 states and 325 transitions. Second operand 5 states. [2020-07-21 10:37:50,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:37:50,414 INFO L93 Difference]: Finished difference Result 499 states and 633 transitions. [2020-07-21 10:37:50,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 10:37:50,414 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 111 [2020-07-21 10:37:50,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:37:50,420 INFO L225 Difference]: With dead ends: 499 [2020-07-21 10:37:50,421 INFO L226 Difference]: Without dead ends: 258 [2020-07-21 10:37:50,424 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 107 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 10:37:50,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2020-07-21 10:37:50,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 258. [2020-07-21 10:37:50,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2020-07-21 10:37:50,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 312 transitions. [2020-07-21 10:37:50,465 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 312 transitions. Word has length 111 [2020-07-21 10:37:50,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:37:50,466 INFO L479 AbstractCegarLoop]: Abstraction has 258 states and 312 transitions. [2020-07-21 10:37:50,468 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 10:37:50,468 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 312 transitions. [2020-07-21 10:37:50,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-07-21 10:37:50,471 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:37:50,471 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:37:50,686 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:37:50,687 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:37:50,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:37:50,688 INFO L82 PathProgramCache]: Analyzing trace with hash -48144310, now seen corresponding path program 1 times [2020-07-21 10:37:50,688 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:37:50,689 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [299724363] [2020-07-21 10:37:50,689 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 10:37:50,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:37:50,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 800 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-21 10:37:50,882 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:37:50,949 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 10:37:50,949 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:37:50,950 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [299724363] [2020-07-21 10:37:50,950 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:37:50,950 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 10:37:50,950 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976228524] [2020-07-21 10:37:50,951 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 10:37:50,951 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:37:50,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 10:37:50,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-21 10:37:50,952 INFO L87 Difference]: Start difference. First operand 258 states and 312 transitions. Second operand 6 states. [2020-07-21 10:37:51,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:37:51,671 INFO L93 Difference]: Finished difference Result 659 states and 854 transitions. [2020-07-21 10:37:51,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 10:37:51,671 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 111 [2020-07-21 10:37:51,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:37:51,674 INFO L225 Difference]: With dead ends: 659 [2020-07-21 10:37:51,674 INFO L226 Difference]: Without dead ends: 425 [2020-07-21 10:37:51,675 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-21 10:37:51,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2020-07-21 10:37:51,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 409. [2020-07-21 10:37:51,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 409 states. [2020-07-21 10:37:51,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 502 transitions. [2020-07-21 10:37:51,715 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 502 transitions. Word has length 111 [2020-07-21 10:37:51,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:37:51,715 INFO L479 AbstractCegarLoop]: Abstraction has 409 states and 502 transitions. [2020-07-21 10:37:51,715 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 10:37:51,715 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 502 transitions. [2020-07-21 10:37:51,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-07-21 10:37:51,718 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:37:51,719 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 10:37:51,928 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:37:51,929 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:37:51,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:37:51,930 INFO L82 PathProgramCache]: Analyzing trace with hash 782485200, now seen corresponding path program 1 times [2020-07-21 10:37:51,930 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:37:51,930 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [421989519] [2020-07-21 10:37:51,930 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 10:37:52,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:37:52,100 INFO L263 TraceCheckSpWp]: Trace formula consists of 809 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 10:37:52,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:37:52,180 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 15 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 10:37:52,180 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 10:37:52,425 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 19 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-21 10:37:52,425 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [421989519] [2020-07-21 10:37:52,425 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 10:37:52,426 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2020-07-21 10:37:52,426 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698668668] [2020-07-21 10:37:52,427 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-21 10:37:52,427 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:37:52,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-21 10:37:52,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-07-21 10:37:52,428 INFO L87 Difference]: Start difference. First operand 409 states and 502 transitions. Second operand 12 states. [2020-07-21 10:37:53,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:37:53,788 INFO L93 Difference]: Finished difference Result 1063 states and 1431 transitions. [2020-07-21 10:37:53,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-07-21 10:37:53,788 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 115 [2020-07-21 10:37:53,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:37:53,796 INFO L225 Difference]: With dead ends: 1063 [2020-07-21 10:37:53,796 INFO L226 Difference]: Without dead ends: 678 [2020-07-21 10:37:53,798 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 218 SyntacticMatches, 6 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=148, Invalid=358, Unknown=0, NotChecked=0, Total=506 [2020-07-21 10:37:53,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2020-07-21 10:37:53,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 515. [2020-07-21 10:37:53,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 515 states. [2020-07-21 10:37:53,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 633 transitions. [2020-07-21 10:37:53,853 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 633 transitions. Word has length 115 [2020-07-21 10:37:53,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:37:53,854 INFO L479 AbstractCegarLoop]: Abstraction has 515 states and 633 transitions. [2020-07-21 10:37:53,854 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-21 10:37:53,855 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 633 transitions. [2020-07-21 10:37:53,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-07-21 10:37:53,862 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:37:53,863 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 10:37:54,076 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:37:54,077 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:37:54,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:37:54,078 INFO L82 PathProgramCache]: Analyzing trace with hash 218697075, now seen corresponding path program 2 times [2020-07-21 10:37:54,079 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:37:54,079 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1260626765] [2020-07-21 10:37:54,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:37:54,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-21 10:37:54,316 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 10:37:54,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-21 10:37:54,450 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 10:37:54,728 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-21 10:37:54,729 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-21 10:37:54,929 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:37:55,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 10:37:55 BoogieIcfgContainer [2020-07-21 10:37:55,163 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 10:37:55,166 INFO L168 Benchmark]: Toolchain (without parser) took 11360.50 ms. Allocated memory was 147.3 MB in the beginning and 356.0 MB in the end (delta: 208.7 MB). Free memory was 103.3 MB in the beginning and 223.4 MB in the end (delta: -120.0 MB). Peak memory consumption was 88.6 MB. Max. memory is 7.1 GB. [2020-07-21 10:37:55,167 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 147.3 MB. Free memory was 123.4 MB in the beginning and 123.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 10:37:55,168 INFO L168 Benchmark]: CACSL2BoogieTranslator took 692.67 ms. Allocated memory was 147.3 MB in the beginning and 204.5 MB in the end (delta: 57.1 MB). Free memory was 102.9 MB in the beginning and 173.3 MB in the end (delta: -70.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 7.1 GB. [2020-07-21 10:37:55,168 INFO L168 Benchmark]: Boogie Preprocessor took 87.10 ms. Allocated memory is still 204.5 MB. Free memory was 173.3 MB in the beginning and 168.7 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. [2020-07-21 10:37:55,169 INFO L168 Benchmark]: RCFGBuilder took 1178.89 ms. Allocated memory was 204.5 MB in the beginning and 236.5 MB in the end (delta: 32.0 MB). Free memory was 168.7 MB in the beginning and 197.4 MB in the end (delta: -28.8 MB). Peak memory consumption was 81.5 MB. Max. memory is 7.1 GB. [2020-07-21 10:37:55,170 INFO L168 Benchmark]: TraceAbstraction took 9394.65 ms. Allocated memory was 236.5 MB in the beginning and 356.0 MB in the end (delta: 119.5 MB). Free memory was 197.4 MB in the beginning and 223.4 MB in the end (delta: -25.9 MB). Peak memory consumption was 93.6 MB. Max. memory is 7.1 GB. [2020-07-21 10:37:55,174 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 147.3 MB. Free memory was 123.4 MB in the beginning and 123.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 692.67 ms. Allocated memory was 147.3 MB in the beginning and 204.5 MB in the end (delta: 57.1 MB). Free memory was 102.9 MB in the beginning and 173.3 MB in the end (delta: -70.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 87.10 ms. Allocated memory is still 204.5 MB. Free memory was 173.3 MB in the beginning and 168.7 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1178.89 ms. Allocated memory was 204.5 MB in the beginning and 236.5 MB in the end (delta: 32.0 MB). Free memory was 168.7 MB in the beginning and 197.4 MB in the end (delta: -28.8 MB). Peak memory consumption was 81.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 9394.65 ms. Allocated memory was 236.5 MB in the beginning and 356.0 MB in the end (delta: 119.5 MB). Free memory was 197.4 MB in the beginning and 223.4 MB in the end (delta: -25.9 MB). Peak memory consumption was 93.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 540]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L69] int cleanupTimeShifts = 4; [L282] int pumpRunning = 0; [L283] int systemActive = 1; [L442] int waterLevel = 1; [L443] int methaneLevelCritical = 0; [L714] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=61, \old(head)=42, \old(head)=106, \old(methaneLevelCritical)=71, \old(pumpRunning)=103, \old(systemActive)=46, \old(waterLevel)=78, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L150] int retValue_acc ; [L151] 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] [L155] 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] [L156] 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] [L157] 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] [L199] int retValue_acc ; [L202] retValue_acc = 1 [L203] 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] [L157] 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] [L157] tmp = valid_product() [L159] 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] [L161] 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] [L162] 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] [L141] 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] [L210] int splverifierCounter ; [L211] int tmp ; [L212] int tmp___0 ; [L213] int tmp___1 ; [L214] int tmp___2 ; [L217] 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] [L219] 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] [L221] 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] [L227] tmp = __VERIFIER_nondet_int() [L229] 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] [L231] 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] [L460] COND TRUE waterLevel < 2 [L461] 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] [L231] 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] [L237] tmp___0 = __VERIFIER_nondet_int() [L239] COND FALSE !(\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=0, waterLevel=2] [L247] tmp___2 = __VERIFIER_nondet_int() [L249] COND FALSE !(\read(tmp___2)) [L255] tmp___1 = __VERIFIER_nondet_int() [L257] COND TRUE \read(tmp___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, tmp=-1, tmp___0=0, tmp___1=-1, tmp___2=0, waterLevel=2] [L264] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L289] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L296] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L298] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L318] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L321] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L323] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L415] int retValue_acc ; [L416] int tmp ; [L417] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L421] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L522] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L525] COND FALSE !(waterLevel < 2) [L529] retValue_acc = 0 [L530] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L421] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L421] tmp = isHighWaterSensorDry() [L423] COND FALSE !(\read(tmp)) [L426] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L428] retValue_acc = tmp___0 [L429] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L323] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L323] tmp = isHighWaterLevel() [L325] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L327] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L346] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L327] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L298] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L304] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, 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=0, pumpRunning=1, systemActive=1, waterLevel=2] [L49] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L513] int retValue_acc ; [L516] retValue_acc = waterLevel [L517] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=2, systemActive=1, waterLevel=2] [L49] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L49] tmp = getWaterLevel() [L51] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=2, waterLevel=2] [L304] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L264] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___1=-1, tmp___2=0, waterLevel=2] [L219] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___1=-1, tmp___2=0, waterLevel=2] [L221] 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=1, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___1=-1, tmp___2=0, waterLevel=2] [L227] tmp = __VERIFIER_nondet_int() [L229] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=-1, tmp___2=0, waterLevel=2] [L237] tmp___0 = __VERIFIER_nondet_int() [L239] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=-1, tmp___2=0, waterLevel=2] [L247] tmp___2 = __VERIFIER_nondet_int() [L249] COND FALSE !(\read(tmp___2)) [L255] tmp___1 = __VERIFIER_nondet_int() [L257] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L264] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L289] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L291] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L448] COND TRUE waterLevel > 0 [L449] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L291] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L296] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L298] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L318] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L321] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L336] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L298] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L304] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L44] int tmp ; [L45] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L49] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L513] int retValue_acc ; [L516] retValue_acc = waterLevel [L517] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L49] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=1, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L49] tmp = getWaterLevel() [L51] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L304] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L264] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=1] [L219] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=1] [L221] 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=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=1] [L227] tmp = __VERIFIER_nondet_int() [L229] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=1] [L237] tmp___0 = __VERIFIER_nondet_int() [L239] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=1] [L247] tmp___2 = __VERIFIER_nondet_int() [L249] COND FALSE !(\read(tmp___2)) [L255] tmp___1 = __VERIFIER_nondet_int() [L257] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=-1, tmp___2=0, waterLevel=1] [L264] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L289] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L291] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L448] COND TRUE waterLevel > 0 [L449] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L291] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L296] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L298] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L318] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L321] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L336] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L298] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L304] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L44] int tmp ; [L45] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L49] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L513] int retValue_acc ; [L516] retValue_acc = waterLevel [L517] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L49] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, getWaterLevel()=0, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L49] tmp = getWaterLevel() [L51] COND TRUE tmp == 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L53] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L370] int retValue_acc ; [L373] retValue_acc = pumpRunning [L374] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L53] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L53] tmp___0 = isPumpRunning() [L55] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=0] [L57] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L540] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 219 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 9.1s, OverallIterations: 10, TraceHistogramMax: 3, AutomataDifference: 3.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1119 SDtfs, 744 SDslu, 2013 SDs, 0 SdLazy, 1834 SolverSat, 399 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 850 GetRequests, 792 SyntacticMatches, 6 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=515occurred in iteration=9, 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, 9 MinimizatonAttempts, 196 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 868 NumberOfCodeBlocks, 868 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 822 ConstructedInterpolants, 0 QuantifiedInterpolants, 137252 SizeOfPredicates, 34 NumberOfNonLiveVariables, 6531 ConjunctsInSsa, 93 ConjunctsInUnsatCore, 10 InterpolantComputations, 8 PerfectInterpolantSequences, 112/125 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...