/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 SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_FUNCTIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product43.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 13:00:52,596 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 13:00:52,598 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 13:00:52,616 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 13:00:52,617 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 13:00:52,618 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 13:00:52,620 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 13:00:52,623 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 13:00:52,628 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 13:00:52,629 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 13:00:52,630 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 13:00:52,631 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 13:00:52,632 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 13:00:52,632 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 13:00:52,633 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 13:00:52,635 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 13:00:52,635 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 13:00:52,636 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 13:00:52,638 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 13:00:52,640 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 13:00:52,641 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 13:00:52,642 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 13:00:52,643 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 13:00:52,644 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 13:00:52,646 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-20 13:00:52,646 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-20 13:00:52,647 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-20 13:00:52,647 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-20 13:00:52,648 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-20 13:00:52,649 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-20 13:00:52,649 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-20 13:00:52,650 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-20 13:00:52,650 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-20 13:00:52,651 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-20 13:00:52,652 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-20 13:00:52,652 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-20 13:00:52,653 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-20 13:00:52,653 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-20 13:00:52,653 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 13:00:52,654 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 13:00:52,655 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 13:00:52,656 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 [2020-07-20 13:00:52,670 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 13:00:52,670 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 13:00:52,671 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 13:00:52,671 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 13:00:52,671 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 13:00:52,672 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 13:00:52,672 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 13:00:52,672 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 13:00:52,672 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 13:00:52,672 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 13:00:52,673 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 13:00:52,673 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 13:00:52,673 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 13:00:52,673 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 13:00:52,673 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 13:00:52,674 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 13:00:52,674 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 13:00:52,674 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 13:00:52,674 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 13:00:52,674 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 13:00:52,675 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 13:00:52,675 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 13:00:52,675 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 13:00:52,675 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 13:00:52,675 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 13:00:52,676 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 13:00:52,676 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:00:52,676 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 13:00:52,676 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 13:00:52,676 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 -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_FUNCTIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-20 13:00:53,044 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 13:00:53,058 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 13:00:53,062 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 13:00:53,063 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 13:00:53,064 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 13:00:53,064 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product43.cil.c [2020-07-20 13:00:53,127 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44855741e/9fd6c569b045470299c04594341ceb74/FLAG249000159 [2020-07-20 13:00:53,611 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 13:00:53,612 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product43.cil.c [2020-07-20 13:00:53,625 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44855741e/9fd6c569b045470299c04594341ceb74/FLAG249000159 [2020-07-20 13:00:53,961 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44855741e/9fd6c569b045470299c04594341ceb74 [2020-07-20 13:00:53,969 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 13:00:53,972 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 13:00:53,973 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 13:00:53,973 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 13:00:53,977 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 13:00:53,978 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:00:53" (1/1) ... [2020-07-20 13:00:53,981 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c07bb8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:00:53, skipping insertion in model container [2020-07-20 13:00:53,981 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:00:53" (1/1) ... [2020-07-20 13:00:53,989 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 13:00:54,033 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 13:00:54,495 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 13:00:54,507 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 13:00:54,616 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 13:00:54,662 INFO L208 MainTranslator]: Completed translation [2020-07-20 13:00:54,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:00:54 WrapperNode [2020-07-20 13:00:54,663 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 13:00:54,664 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 13:00:54,664 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 13:00:54,664 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 13:00:54,676 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:00:54" (1/1) ... [2020-07-20 13:00:54,676 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:00:54" (1/1) ... [2020-07-20 13:00:54,695 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:00:54" (1/1) ... [2020-07-20 13:00:54,695 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:00:54" (1/1) ... [2020-07-20 13:00:54,728 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:00:54" (1/1) ... [2020-07-20 13:00:54,739 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:00:54" (1/1) ... [2020-07-20 13:00:54,744 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:00:54" (1/1) ... [2020-07-20 13:00:54,752 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 13:00:54,752 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 13:00:54,753 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 13:00:54,753 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 13:00:54,754 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:00:54" (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 [2020-07-20 13:00:54,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 13:00:54,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 13:00:54,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-20 13:00:54,822 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-20 13:00:54,822 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-20 13:00:54,822 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-20 13:00:54,822 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-20 13:00:54,822 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-20 13:00:54,822 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-20 13:00:54,823 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-20 13:00:54,823 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-20 13:00:54,823 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-20 13:00:54,823 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-20 13:00:54,823 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-07-20 13:00:54,823 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-20 13:00:54,824 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-20 13:00:54,824 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-20 13:00:54,824 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-20 13:00:54,824 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-20 13:00:54,824 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-20 13:00:54,824 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-20 13:00:54,824 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-20 13:00:54,825 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-20 13:00:54,825 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-07-20 13:00:54,825 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-20 13:00:54,825 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-20 13:00:54,825 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-20 13:00:54,825 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-20 13:00:54,826 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 13:00:54,826 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-20 13:00:54,826 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-20 13:00:54,826 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-20 13:00:54,826 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-20 13:00:54,826 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-20 13:00:54,827 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-20 13:00:54,827 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-20 13:00:54,827 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-20 13:00:54,827 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-20 13:00:54,827 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-20 13:00:54,827 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 13:00:54,828 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 13:00:54,828 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-20 13:00:54,828 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-20 13:00:54,828 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-20 13:00:54,828 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-20 13:00:54,828 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-20 13:00:54,829 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-20 13:00:54,829 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-20 13:00:54,829 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-20 13:00:54,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-20 13:00:54,829 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-20 13:00:54,829 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-20 13:00:54,829 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-20 13:00:54,830 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-20 13:00:54,830 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-20 13:00:54,830 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-20 13:00:54,830 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-07-20 13:00:54,830 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-20 13:00:54,830 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-20 13:00:54,831 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-20 13:00:54,831 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-07-20 13:00:54,831 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-20 13:00:54,831 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-20 13:00:54,831 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-20 13:00:54,831 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-20 13:00:54,832 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-20 13:00:54,832 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-20 13:00:54,832 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-20 13:00:54,832 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-20 13:00:54,832 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-20 13:00:54,832 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-20 13:00:54,832 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 13:00:54,833 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-20 13:00:54,833 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-20 13:00:54,833 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-20 13:00:54,833 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-20 13:00:54,833 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-20 13:00:54,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-20 13:00:54,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-20 13:00:54,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-20 13:00:54,834 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-20 13:00:54,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-20 13:00:54,834 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-20 13:00:54,834 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-20 13:00:54,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-20 13:00:54,835 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-20 13:00:54,835 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-20 13:00:54,835 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-20 13:00:54,835 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-20 13:00:54,835 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 13:00:54,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-20 13:00:54,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 13:00:55,880 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 13:00:55,880 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-20 13:00:55,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 01:00:55 BoogieIcfgContainer [2020-07-20 13:00:55,886 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 13:00:55,887 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 13:00:55,887 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 13:00:55,890 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 13:00:55,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 01:00:53" (1/3) ... [2020-07-20 13:00:55,891 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@535cb05c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 01:00:55, skipping insertion in model container [2020-07-20 13:00:55,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:00:54" (2/3) ... [2020-07-20 13:00:55,892 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@535cb05c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 01:00:55, skipping insertion in model container [2020-07-20 13:00:55,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 01:00:55" (3/3) ... [2020-07-20 13:00:55,894 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product43.cil.c [2020-07-20 13:00:55,905 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 13:00:55,913 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 13:00:55,928 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 13:00:55,953 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 13:00:55,953 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 13:00:55,954 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 13:00:55,954 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 13:00:55,954 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 13:00:55,954 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 13:00:55,954 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 13:00:55,955 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 13:00:55,981 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states. [2020-07-20 13:00:55,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-20 13:00:55,996 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:00:55,998 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:00:55,998 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:00:56,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:00:56,004 INFO L82 PathProgramCache]: Analyzing trace with hash 2058113087, now seen corresponding path program 1 times [2020-07-20 13:00:56,014 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:00:56,015 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1384852344] [2020-07-20 13:00:56,016 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) 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 [2020-07-20 13:00:56,532 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 13:00:56,532 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:00:56,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 628 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-20 13:00:56,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:00:56,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 13:00:56,591 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:00:56,593 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1384852344] [2020-07-20 13:00:56,593 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:00:56,594 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-20 13:00:56,595 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568656206] [2020-07-20 13:00:56,600 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-20 13:00:56,600 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:00:56,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-20 13:00:56,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-20 13:00:56,618 INFO L87 Difference]: Start difference. First operand 169 states. Second operand 2 states. [2020-07-20 13:00:56,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:00:56,664 INFO L93 Difference]: Finished difference Result 252 states and 311 transitions. [2020-07-20 13:00:56,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-20 13:00:56,667 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2020-07-20 13:00:56,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:00:56,681 INFO L225 Difference]: With dead ends: 252 [2020-07-20 13:00:56,681 INFO L226 Difference]: Without dead ends: 126 [2020-07-20 13:00:56,685 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 [2020-07-20 13:00:56,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-07-20 13:00:56,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2020-07-20 13:00:56,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-07-20 13:00:56,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 147 transitions. [2020-07-20 13:00:56,750 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 147 transitions. Word has length 46 [2020-07-20 13:00:56,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:00:56,751 INFO L479 AbstractCegarLoop]: Abstraction has 126 states and 147 transitions. [2020-07-20 13:00:56,751 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-20 13:00:56,751 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 147 transitions. [2020-07-20 13:00:56,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-07-20 13:00:56,755 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:00:56,755 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] [2020-07-20 13:00:56,970 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:00:56,970 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:00:56,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:00:56,971 INFO L82 PathProgramCache]: Analyzing trace with hash 1232914971, now seen corresponding path program 1 times [2020-07-20 13:00:56,972 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:00:56,972 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1386938724] [2020-07-20 13:00:56,973 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) 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 [2020-07-20 13:00:57,451 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 13:00:57,452 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:00:57,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 627 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-20 13:00:57,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:00:57,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 13:00:57,498 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:00:57,498 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1386938724] [2020-07-20 13:00:57,499 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:00:57,499 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 13:00:57,499 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230689162] [2020-07-20 13:00:57,501 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 13:00:57,501 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:00:57,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 13:00:57,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:00:57,502 INFO L87 Difference]: Start difference. First operand 126 states and 147 transitions. Second operand 3 states. [2020-07-20 13:00:57,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:00:57,522 INFO L93 Difference]: Finished difference Result 192 states and 223 transitions. [2020-07-20 13:00:57,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 13:00:57,522 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2020-07-20 13:00:57,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:00:57,525 INFO L225 Difference]: With dead ends: 192 [2020-07-20 13:00:57,525 INFO L226 Difference]: Without dead ends: 117 [2020-07-20 13:00:57,527 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 [2020-07-20 13:00:57,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2020-07-20 13:00:57,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2020-07-20 13:00:57,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2020-07-20 13:00:57,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 135 transitions. [2020-07-20 13:00:57,542 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 135 transitions. Word has length 47 [2020-07-20 13:00:57,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:00:57,542 INFO L479 AbstractCegarLoop]: Abstraction has 117 states and 135 transitions. [2020-07-20 13:00:57,542 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 13:00:57,543 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 135 transitions. [2020-07-20 13:00:57,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-20 13:00:57,547 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:00:57,547 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:00:57,764 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:00:57,764 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:00:57,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:00:57,765 INFO L82 PathProgramCache]: Analyzing trace with hash 1264843506, now seen corresponding path program 1 times [2020-07-20 13:00:57,766 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:00:57,766 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [896970484] [2020-07-20 13:00:57,767 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) 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 [2020-07-20 13:00:58,126 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 13:00:58,127 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:00:58,132 INFO L263 TraceCheckSpWp]: Trace formula consists of 656 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-20 13:00:58,137 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:00:58,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 13:00:58,166 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:00:58,166 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [896970484] [2020-07-20 13:00:58,166 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:00:58,167 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 13:00:58,167 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935791432] [2020-07-20 13:00:58,167 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 13:00:58,168 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:00:58,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 13:00:58,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:00:58,168 INFO L87 Difference]: Start difference. First operand 117 states and 135 transitions. Second operand 3 states. [2020-07-20 13:00:58,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:00:58,199 INFO L93 Difference]: Finished difference Result 301 states and 357 transitions. [2020-07-20 13:00:58,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 13:00:58,200 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2020-07-20 13:00:58,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:00:58,204 INFO L225 Difference]: With dead ends: 301 [2020-07-20 13:00:58,204 INFO L226 Difference]: Without dead ends: 208 [2020-07-20 13:00:58,205 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:00:58,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2020-07-20 13:00:58,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 198. [2020-07-20 13:00:58,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-07-20 13:00:58,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 233 transitions. [2020-07-20 13:00:58,232 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 233 transitions. Word has length 51 [2020-07-20 13:00:58,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:00:58,232 INFO L479 AbstractCegarLoop]: Abstraction has 198 states and 233 transitions. [2020-07-20 13:00:58,232 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 13:00:58,233 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 233 transitions. [2020-07-20 13:00:58,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-07-20 13:00:58,235 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:00:58,235 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:00:58,449 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:00:58,450 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:00:58,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:00:58,451 INFO L82 PathProgramCache]: Analyzing trace with hash 1557328557, now seen corresponding path program 1 times [2020-07-20 13:00:58,451 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:00:58,452 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [727485048] [2020-07-20 13:00:58,452 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) 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 [2020-07-20 13:00:58,844 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 13:00:58,844 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:00:58,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 677 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 13:00:58,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:00:58,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 13:00:58,901 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:00:58,901 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [727485048] [2020-07-20 13:00:58,902 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:00:58,902 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 13:00:58,902 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284472872] [2020-07-20 13:00:58,903 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 13:00:58,903 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:00:58,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 13:00:58,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-20 13:00:58,904 INFO L87 Difference]: Start difference. First operand 198 states and 233 transitions. Second operand 6 states. [2020-07-20 13:00:59,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:00:59,178 INFO L93 Difference]: Finished difference Result 476 states and 582 transitions. [2020-07-20 13:00:59,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 13:00:59,179 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 57 [2020-07-20 13:00:59,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:00:59,184 INFO L225 Difference]: With dead ends: 476 [2020-07-20 13:00:59,184 INFO L226 Difference]: Without dead ends: 302 [2020-07-20 13:00:59,186 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-20 13:00:59,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2020-07-20 13:00:59,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 294. [2020-07-20 13:00:59,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-07-20 13:00:59,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 351 transitions. [2020-07-20 13:00:59,222 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 351 transitions. Word has length 57 [2020-07-20 13:00:59,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:00:59,222 INFO L479 AbstractCegarLoop]: Abstraction has 294 states and 351 transitions. [2020-07-20 13:00:59,222 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 13:00:59,223 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 351 transitions. [2020-07-20 13:00:59,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-07-20 13:00:59,226 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:00:59,227 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:00:59,439 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:00:59,440 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:00:59,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:00:59,441 INFO L82 PathProgramCache]: Analyzing trace with hash 806006492, now seen corresponding path program 1 times [2020-07-20 13:00:59,441 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:00:59,442 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1577905402] [2020-07-20 13:00:59,442 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) 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 [2020-07-20 13:00:59,889 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 13:00:59,890 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:00:59,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 709 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-20 13:00:59,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:00:59,955 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-20 13:00:59,955 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:00:59,956 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1577905402] [2020-07-20 13:00:59,956 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:00:59,956 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 13:00:59,957 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376544992] [2020-07-20 13:00:59,958 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 13:00:59,959 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:00:59,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 13:00:59,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:00:59,961 INFO L87 Difference]: Start difference. First operand 294 states and 351 transitions. Second operand 3 states. [2020-07-20 13:01:00,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:01:00,014 INFO L93 Difference]: Finished difference Result 826 states and 1051 transitions. [2020-07-20 13:01:00,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 13:01:00,015 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 89 [2020-07-20 13:01:00,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:01:00,029 INFO L225 Difference]: With dead ends: 826 [2020-07-20 13:01:00,030 INFO L226 Difference]: Without dead ends: 556 [2020-07-20 13:01:00,035 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 86 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:01:00,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2020-07-20 13:01:00,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 553. [2020-07-20 13:01:00,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 553 states. [2020-07-20 13:01:00,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 688 transitions. [2020-07-20 13:01:00,098 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 688 transitions. Word has length 89 [2020-07-20 13:01:00,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:01:00,098 INFO L479 AbstractCegarLoop]: Abstraction has 553 states and 688 transitions. [2020-07-20 13:01:00,098 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 13:01:00,098 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 688 transitions. [2020-07-20 13:01:00,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-07-20 13:01:00,104 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:01:00,105 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:01:00,317 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:01:00,318 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:01:00,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:01:00,319 INFO L82 PathProgramCache]: Analyzing trace with hash 733666945, now seen corresponding path program 1 times [2020-07-20 13:01:00,319 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:01:00,320 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [981982589] [2020-07-20 13:01:00,320 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) 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 [2020-07-20 13:01:00,673 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 13:01:00,673 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:01:00,678 INFO L263 TraceCheckSpWp]: Trace formula consists of 717 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-20 13:01:00,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:01:00,730 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-20 13:01:00,731 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:01:00,731 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [981982589] [2020-07-20 13:01:00,731 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:01:00,731 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 13:01:00,731 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370744120] [2020-07-20 13:01:00,732 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 13:01:00,732 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:01:00,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 13:01:00,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-20 13:01:00,733 INFO L87 Difference]: Start difference. First operand 553 states and 688 transitions. Second operand 6 states. [2020-07-20 13:01:01,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:01:01,820 INFO L93 Difference]: Finished difference Result 1802 states and 2423 transitions. [2020-07-20 13:01:01,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-20 13:01:01,823 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 93 [2020-07-20 13:01:01,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:01:01,832 INFO L225 Difference]: With dead ends: 1802 [2020-07-20 13:01:01,832 INFO L226 Difference]: Without dead ends: 1273 [2020-07-20 13:01:01,834 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 87 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-20 13:01:01,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1273 states. [2020-07-20 13:01:01,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1273 to 1167. [2020-07-20 13:01:01,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1167 states. [2020-07-20 13:01:01,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1167 states to 1167 states and 1511 transitions. [2020-07-20 13:01:01,924 INFO L78 Accepts]: Start accepts. Automaton has 1167 states and 1511 transitions. Word has length 93 [2020-07-20 13:01:01,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:01:01,924 INFO L479 AbstractCegarLoop]: Abstraction has 1167 states and 1511 transitions. [2020-07-20 13:01:01,924 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 13:01:01,924 INFO L276 IsEmpty]: Start isEmpty. Operand 1167 states and 1511 transitions. [2020-07-20 13:01:01,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-07-20 13:01:01,928 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:01:01,929 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:01:02,144 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:01:02,145 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:01:02,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:01:02,147 INFO L82 PathProgramCache]: Analyzing trace with hash -1164932965, now seen corresponding path program 1 times [2020-07-20 13:01:02,147 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:01:02,147 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [409510869] [2020-07-20 13:01:02,148 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) 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 [2020-07-20 13:01:02,563 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 13:01:02,563 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:01:02,569 INFO L263 TraceCheckSpWp]: Trace formula consists of 709 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 13:01:02,572 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:01:02,605 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-20 13:01:02,606 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:01:02,606 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [409510869] [2020-07-20 13:01:02,606 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:01:02,606 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 13:01:02,607 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69360047] [2020-07-20 13:01:02,607 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 13:01:02,607 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:01:02,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 13:01:02,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-20 13:01:02,608 INFO L87 Difference]: Start difference. First operand 1167 states and 1511 transitions. Second operand 6 states. [2020-07-20 13:01:02,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:01:02,694 INFO L93 Difference]: Finished difference Result 2352 states and 3210 transitions. [2020-07-20 13:01:02,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 13:01:02,695 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 89 [2020-07-20 13:01:02,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:01:02,704 INFO L225 Difference]: With dead ends: 2352 [2020-07-20 13:01:02,704 INFO L226 Difference]: Without dead ends: 1209 [2020-07-20 13:01:02,709 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-20 13:01:02,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1209 states. [2020-07-20 13:01:02,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1209 to 1197. [2020-07-20 13:01:02,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1197 states. [2020-07-20 13:01:02,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1197 states to 1197 states and 1549 transitions. [2020-07-20 13:01:02,783 INFO L78 Accepts]: Start accepts. Automaton has 1197 states and 1549 transitions. Word has length 89 [2020-07-20 13:01:02,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:01:02,784 INFO L479 AbstractCegarLoop]: Abstraction has 1197 states and 1549 transitions. [2020-07-20 13:01:02,784 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 13:01:02,784 INFO L276 IsEmpty]: Start isEmpty. Operand 1197 states and 1549 transitions. [2020-07-20 13:01:02,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-07-20 13:01:02,787 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:01:02,787 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:01:03,000 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:01:03,001 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:01:03,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:01:03,002 INFO L82 PathProgramCache]: Analyzing trace with hash -2062326243, now seen corresponding path program 1 times [2020-07-20 13:01:03,002 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:01:03,003 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [641767096] [2020-07-20 13:01:03,003 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) 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 [2020-07-20 13:01:03,391 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 13:01:03,391 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:01:03,395 INFO L263 TraceCheckSpWp]: Trace formula consists of 710 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-20 13:01:03,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:01:03,429 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-20 13:01:03,429 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:01:03,430 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [641767096] [2020-07-20 13:01:03,430 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:01:03,430 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 13:01:03,430 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696414354] [2020-07-20 13:01:03,431 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 13:01:03,431 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:01:03,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 13:01:03,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 13:01:03,432 INFO L87 Difference]: Start difference. First operand 1197 states and 1549 transitions. Second operand 5 states. [2020-07-20 13:01:03,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:01:03,504 INFO L93 Difference]: Finished difference Result 2188 states and 2905 transitions. [2020-07-20 13:01:03,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 13:01:03,504 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 89 [2020-07-20 13:01:03,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:01:03,512 INFO L225 Difference]: With dead ends: 2188 [2020-07-20 13:01:03,512 INFO L226 Difference]: Without dead ends: 1015 [2020-07-20 13:01:03,517 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 13:01:03,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1015 states. [2020-07-20 13:01:03,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1015 to 1015. [2020-07-20 13:01:03,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1015 states. [2020-07-20 13:01:03,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1015 states to 1015 states and 1294 transitions. [2020-07-20 13:01:03,579 INFO L78 Accepts]: Start accepts. Automaton has 1015 states and 1294 transitions. Word has length 89 [2020-07-20 13:01:03,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:01:03,579 INFO L479 AbstractCegarLoop]: Abstraction has 1015 states and 1294 transitions. [2020-07-20 13:01:03,579 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 13:01:03,580 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states and 1294 transitions. [2020-07-20 13:01:03,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-07-20 13:01:03,582 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:01:03,582 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:01:03,796 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:01:03,797 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:01:03,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:01:03,798 INFO L82 PathProgramCache]: Analyzing trace with hash 1807213124, now seen corresponding path program 1 times [2020-07-20 13:01:03,798 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:01:03,799 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [921877425] [2020-07-20 13:01:03,799 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) 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 [2020-07-20 13:01:04,160 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 13:01:04,160 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:01:04,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 756 conjuncts, 23 conjunts are in the unsatisfiable core [2020-07-20 13:01:04,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:01:04,211 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-20 13:01:04,211 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:01:04,211 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [921877425] [2020-07-20 13:01:04,211 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:01:04,212 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 13:01:04,212 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854391107] [2020-07-20 13:01:04,212 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 13:01:04,213 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:01:04,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 13:01:04,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-20 13:01:04,215 INFO L87 Difference]: Start difference. First operand 1015 states and 1294 transitions. Second operand 6 states. [2020-07-20 13:01:04,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:01:04,462 INFO L93 Difference]: Finished difference Result 2930 states and 3901 transitions. [2020-07-20 13:01:04,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 13:01:04,462 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 93 [2020-07-20 13:01:04,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:01:04,475 INFO L225 Difference]: With dead ends: 2930 [2020-07-20 13:01:04,475 INFO L226 Difference]: Without dead ends: 1939 [2020-07-20 13:01:04,480 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-20 13:01:04,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1939 states. [2020-07-20 13:01:04,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1939 to 1907. [2020-07-20 13:01:04,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1907 states. [2020-07-20 13:01:04,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1907 states to 1907 states and 2442 transitions. [2020-07-20 13:01:04,591 INFO L78 Accepts]: Start accepts. Automaton has 1907 states and 2442 transitions. Word has length 93 [2020-07-20 13:01:04,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:01:04,592 INFO L479 AbstractCegarLoop]: Abstraction has 1907 states and 2442 transitions. [2020-07-20 13:01:04,592 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 13:01:04,592 INFO L276 IsEmpty]: Start isEmpty. Operand 1907 states and 2442 transitions. [2020-07-20 13:01:04,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-07-20 13:01:04,595 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:01:04,595 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:01:04,808 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:01:04,809 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:01:04,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:01:04,810 INFO L82 PathProgramCache]: Analyzing trace with hash 1451570632, now seen corresponding path program 1 times [2020-07-20 13:01:04,810 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:01:04,811 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [133584122] [2020-07-20 13:01:04,811 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) 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 [2020-07-20 13:01:05,193 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 13:01:05,194 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:01:05,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 766 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-20 13:01:05,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:01:05,273 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 13:01:05,273 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:01:05,273 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [133584122] [2020-07-20 13:01:05,273 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:01:05,273 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-20 13:01:05,274 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627681975] [2020-07-20 13:01:05,274 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-20 13:01:05,274 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:01:05,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-20 13:01:05,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-20 13:01:05,275 INFO L87 Difference]: Start difference. First operand 1907 states and 2442 transitions. Second operand 8 states. [2020-07-20 13:01:05,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:01:05,690 INFO L93 Difference]: Finished difference Result 3720 states and 4788 transitions. [2020-07-20 13:01:05,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 13:01:05,691 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 97 [2020-07-20 13:01:05,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:01:05,706 INFO L225 Difference]: With dead ends: 3720 [2020-07-20 13:01:05,706 INFO L226 Difference]: Without dead ends: 1837 [2020-07-20 13:01:05,714 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 89 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-20 13:01:05,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1837 states. [2020-07-20 13:01:05,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1837 to 1837. [2020-07-20 13:01:05,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1837 states. [2020-07-20 13:01:05,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1837 states to 1837 states and 2305 transitions. [2020-07-20 13:01:05,812 INFO L78 Accepts]: Start accepts. Automaton has 1837 states and 2305 transitions. Word has length 97 [2020-07-20 13:01:05,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:01:05,814 INFO L479 AbstractCegarLoop]: Abstraction has 1837 states and 2305 transitions. [2020-07-20 13:01:05,814 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-20 13:01:05,814 INFO L276 IsEmpty]: Start isEmpty. Operand 1837 states and 2305 transitions. [2020-07-20 13:01:05,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-07-20 13:01:05,818 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:01:05,818 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:01:06,031 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:01:06,032 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:01:06,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:01:06,032 INFO L82 PathProgramCache]: Analyzing trace with hash 1744249391, now seen corresponding path program 1 times [2020-07-20 13:01:06,032 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:01:06,033 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1349989077] [2020-07-20 13:01:06,033 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:01:06,352 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-20 13:01:06,352 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:01:06,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 718 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-20 13:01:06,359 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:01:06,421 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-07-20 13:01:06,422 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:01:06,422 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1349989077] [2020-07-20 13:01:06,422 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:01:06,422 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 13:01:06,423 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491635719] [2020-07-20 13:01:06,423 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 13:01:06,423 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:01:06,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 13:01:06,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:01:06,424 INFO L87 Difference]: Start difference. First operand 1837 states and 2305 transitions. Second operand 3 states. [2020-07-20 13:01:06,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:01:06,544 INFO L93 Difference]: Finished difference Result 2306 states and 2881 transitions. [2020-07-20 13:01:06,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 13:01:06,545 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 130 [2020-07-20 13:01:06,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:01:06,550 INFO L225 Difference]: With dead ends: 2306 [2020-07-20 13:01:06,550 INFO L226 Difference]: Without dead ends: 830 [2020-07-20 13:01:06,555 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:01:06,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 830 states. [2020-07-20 13:01:06,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 830 to 830. [2020-07-20 13:01:06,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 830 states. [2020-07-20 13:01:06,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 830 states to 830 states and 1014 transitions. [2020-07-20 13:01:06,598 INFO L78 Accepts]: Start accepts. Automaton has 830 states and 1014 transitions. Word has length 130 [2020-07-20 13:01:06,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:01:06,598 INFO L479 AbstractCegarLoop]: Abstraction has 830 states and 1014 transitions. [2020-07-20 13:01:06,598 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 13:01:06,599 INFO L276 IsEmpty]: Start isEmpty. Operand 830 states and 1014 transitions. [2020-07-20 13:01:06,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-07-20 13:01:06,601 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:01:06,602 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:01:06,814 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:01:06,815 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:01:06,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:01:06,816 INFO L82 PathProgramCache]: Analyzing trace with hash -405492817, now seen corresponding path program 1 times [2020-07-20 13:01:06,816 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:01:06,816 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1838646981] [2020-07-20 13:01:06,816 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:01:07,239 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 13:01:07,239 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-07-20 13:01:07,239 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 13:01:07,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 13:01:07,376 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 13:01:07,699 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-20 13:01:07,699 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-20 13:01:07,913 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:01:08,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 01:01:08 BoogieIcfgContainer [2020-07-20 13:01:08,163 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 13:01:08,165 INFO L168 Benchmark]: Toolchain (without parser) took 14194.44 ms. Allocated memory was 143.1 MB in the beginning and 384.3 MB in the end (delta: 241.2 MB). Free memory was 99.5 MB in the beginning and 155.2 MB in the end (delta: -55.7 MB). Peak memory consumption was 185.4 MB. Max. memory is 7.1 GB. [2020-07-20 13:01:08,166 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 143.1 MB. Free memory was 119.3 MB in the beginning and 119.1 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-20 13:01:08,167 INFO L168 Benchmark]: CACSL2BoogieTranslator took 690.31 ms. Allocated memory was 143.1 MB in the beginning and 199.8 MB in the end (delta: 56.6 MB). Free memory was 99.0 MB in the beginning and 166.2 MB in the end (delta: -67.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. [2020-07-20 13:01:08,168 INFO L168 Benchmark]: Boogie Preprocessor took 88.37 ms. Allocated memory is still 199.8 MB. Free memory was 166.2 MB in the beginning and 161.9 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. [2020-07-20 13:01:08,169 INFO L168 Benchmark]: RCFGBuilder took 1133.30 ms. Allocated memory was 199.8 MB in the beginning and 229.1 MB in the end (delta: 29.4 MB). Free memory was 161.9 MB in the beginning and 194.1 MB in the end (delta: -32.2 MB). Peak memory consumption was 85.8 MB. Max. memory is 7.1 GB. [2020-07-20 13:01:08,169 INFO L168 Benchmark]: TraceAbstraction took 12276.10 ms. Allocated memory was 229.1 MB in the beginning and 384.3 MB in the end (delta: 155.2 MB). Free memory was 192.7 MB in the beginning and 155.2 MB in the end (delta: 37.4 MB). Peak memory consumption was 192.6 MB. Max. memory is 7.1 GB. [2020-07-20 13:01:08,173 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 143.1 MB. Free memory was 119.3 MB in the beginning and 119.1 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 690.31 ms. Allocated memory was 143.1 MB in the beginning and 199.8 MB in the end (delta: 56.6 MB). Free memory was 99.0 MB in the beginning and 166.2 MB in the end (delta: -67.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 88.37 ms. Allocated memory is still 199.8 MB. Free memory was 166.2 MB in the beginning and 161.9 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1133.30 ms. Allocated memory was 199.8 MB in the beginning and 229.1 MB in the end (delta: 29.4 MB). Free memory was 161.9 MB in the beginning and 194.1 MB in the end (delta: -32.2 MB). Peak memory consumption was 85.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 12276.10 ms. Allocated memory was 229.1 MB in the beginning and 384.3 MB in the end (delta: 155.2 MB). Free memory was 192.7 MB in the beginning and 155.2 MB in the end (delta: 37.4 MB). Peak memory consumption was 192.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 405]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L47] int waterLevel = 1; [L48] int methaneLevelCritical = 0; [L147] int pumpRunning = 0; [L148] int systemActive = 1; [L436] int cleanupTimeShifts = 4; [L704] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=42, \old(head)=60, \old(head)=29, \old(methaneLevelCritical)=93, \old(pumpRunning)=55, \old(systemActive)=92, \old(waterLevel)=61, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L512] int retValue_acc ; [L513] 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] [L517] 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] [L518] 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] [L519] 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] [L927] int retValue_acc ; [L930] retValue_acc = 1 [L931] 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] [L519] 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] [L519] tmp = valid_product() [L521] 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] [L523] 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] [L524] 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] [L503] 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] [L335] int splverifierCounter ; [L336] int tmp ; [L337] int tmp___0 ; [L338] int tmp___1 ; [L339] int tmp___2 ; [L342] 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] [L344] 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] [L346] 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] [L352] tmp = __VERIFIER_nondet_int() [L354] 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] [L356] 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] [L65] COND TRUE waterLevel < 2 [L66] 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] [L356] 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] [L362] tmp___0 = __VERIFIER_nondet_int() [L364] 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] [L372] tmp___2 = __VERIFIER_nondet_int() [L374] COND TRUE \read(tmp___2) 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___2=-1, waterLevel=2] [L389] 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] [L155] 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] [L162] 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] [L164] 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] [L184] 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] [L187] 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] [L189] 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] [L299] int retValue_acc ; [L300] int tmp ; [L301] 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] [L305] 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] [L127] 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] [L130] COND FALSE !(waterLevel < 2) [L134] retValue_acc = 0 [L135] 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] [L305] 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] [L305] tmp = isHighWaterSensorDry() [L307] COND FALSE !(\read(tmp)) [L310] 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] [L312] retValue_acc = tmp___0 [L313] 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] [L189] 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] [L189] tmp = isHighWaterLevel() [L191] 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] [L193] 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] [L218] 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] [L222] CALL, EXPR isMethaneAlarm() 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] [L243] 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] [L247] CALL, EXPR isMethaneLevelCritical() 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] [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] 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] [L247] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L247] retValue_acc = isMethaneLevelCritical() [L249] 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] [L222] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L222] tmp = isMethaneAlarm() [L224] COND FALSE !(\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=0, waterLevel=2] [L228] CALL activatePump__wrappee__highWaterSensor() 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] [L212] 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] [L228] RET activatePump__wrappee__highWaterSensor() 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=0, waterLevel=2] [L193] 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] [L164] 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] [L170] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L411] int tmp ; [L412] 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] [L416] CALL, EXPR isMethaneLevelCritical() 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] [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] 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=1, retValue_acc=0, systemActive=1, waterLevel=2] [L416] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L416] tmp = isMethaneLevelCritical() [L418] COND FALSE !(\read(tmp)) 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=0, waterLevel=2] [L170] RET __utac_acc__Specification1_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] [L389] 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___2=-1, waterLevel=2] [L344] 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___2=-1, waterLevel=2] [L346] 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___2=-1, waterLevel=2] [L352] tmp = __VERIFIER_nondet_int() [L354] 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___2=-1, waterLevel=2] [L362] tmp___0 = __VERIFIER_nondet_int() [L364] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=-1, tmp___2=-1, waterLevel=2] [L366] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L77] COND FALSE !(\read(methaneLevelCritical)) [L80] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L366] RET changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=-1, tmp___2=-1, waterLevel=2] [L372] tmp___2 = __VERIFIER_nondet_int() [L374] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=-1, tmp___2=1, waterLevel=2] [L389] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L155] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L157] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L53] COND TRUE waterLevel > 0 [L54] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L157] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L162] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L164] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L184] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L187] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L202] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L164] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L170] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L411] int tmp ; [L412] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L416] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L416] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L416] tmp = isMethaneLevelCritical() [L418] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L420] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L254] int retValue_acc ; [L257] retValue_acc = pumpRunning [L258] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L420] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L420] tmp___0 = isPumpRunning() [L422] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=1] [L424] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L405] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 228 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 11.9s, OverallIterations: 12, TraceHistogramMax: 3, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1765 SDtfs, 790 SDslu, 3263 SDs, 0 SdLazy, 943 SolverSat, 200 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 878 GetRequests, 838 SyntacticMatches, 3 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1907occurred 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: 0.6s AutomataMinimizationTime, 11 MinimizatonAttempts, 171 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 3.7s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 1013 NumberOfCodeBlocks, 847 NumberOfCodeBlocksAsserted, 40 NumberOfCheckSat, 870 ConstructedInterpolants, 0 QuantifiedInterpolants, 125944 SizeOfPredicates, 27 NumberOfNonLiveVariables, 7673 ConjunctsInSsa, 96 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 43/43 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...