/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_VARIABLES --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 --traceabstraction.trace.refinement.strategy CAMEL_SMT_AM -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product39.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-20 01:01:47,430 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 01:01:47,432 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 01:01:47,445 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 01:01:47,445 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 01:01:47,446 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 01:01:47,448 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 01:01:47,450 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 01:01:47,451 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 01:01:47,452 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 01:01:47,453 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 01:01:47,455 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 01:01:47,455 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 01:01:47,456 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 01:01:47,457 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 01:01:47,458 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 01:01:47,459 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 01:01:47,460 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 01:01:47,462 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 01:01:47,465 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 01:01:47,466 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 01:01:47,467 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 01:01:47,469 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 01:01:47,469 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 01:01:47,472 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-20 01:01:47,472 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-20 01:01:47,473 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-20 01:01:47,474 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-20 01:01:47,474 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-20 01:01:47,476 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-20 01:01:47,476 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-20 01:01:47,477 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-20 01:01:47,483 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-20 01:01:47,484 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-20 01:01:47,485 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-20 01:01:47,485 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-20 01:01:47,489 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-20 01:01:47,489 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-20 01:01:47,489 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 01:01:47,490 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 01:01:47,491 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 01:01:47,492 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 01:01:47,506 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 01:01:47,506 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 01:01:47,508 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 01:01:47,508 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 01:01:47,508 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 01:01:47,508 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 01:01:47,508 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 01:01:47,509 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 01:01:47,509 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 01:01:47,509 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 01:01:47,509 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 01:01:47,509 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 01:01:47,510 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 01:01:47,510 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 01:01:47,510 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 01:01:47,510 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 01:01:47,510 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 01:01:47,511 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 01:01:47,511 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 01:01:47,511 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 01:01:47,511 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 01:01:47,511 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 01:01:47,512 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 01:01:47,512 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 01:01:47,512 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 01:01:47,512 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 01:01:47,512 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 01:01:47,513 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 01:01:47,513 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 01:01:47,513 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_VARIABLES 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 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> CAMEL_SMT_AM [2020-07-20 01:01:47,807 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 01:01:47,829 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 01:01:47,833 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 01:01:47,835 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 01:01:47,835 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 01:01:47,836 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product39.cil.c [2020-07-20 01:01:47,916 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab1191983/05f1678131e543389a3c3694682c4964/FLAGd41db1634 [2020-07-20 01:01:48,513 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 01:01:48,513 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product39.cil.c [2020-07-20 01:01:48,526 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab1191983/05f1678131e543389a3c3694682c4964/FLAGd41db1634 [2020-07-20 01:01:48,799 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab1191983/05f1678131e543389a3c3694682c4964 [2020-07-20 01:01:48,808 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 01:01:48,811 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 01:01:48,812 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 01:01:48,812 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 01:01:48,815 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 01:01:48,816 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:01:48" (1/1) ... [2020-07-20 01:01:48,820 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3795a4b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:01:48, skipping insertion in model container [2020-07-20 01:01:48,820 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:01:48" (1/1) ... [2020-07-20 01:01:48,827 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 01:01:48,874 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 01:01:49,216 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 01:01:49,342 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 01:01:49,435 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 01:01:49,469 INFO L208 MainTranslator]: Completed translation [2020-07-20 01:01:49,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:01:49 WrapperNode [2020-07-20 01:01:49,469 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 01:01:49,470 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 01:01:49,470 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 01:01:49,470 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 01:01:49,484 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:01:49" (1/1) ... [2020-07-20 01:01:49,485 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:01:49" (1/1) ... [2020-07-20 01:01:49,504 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:01:49" (1/1) ... [2020-07-20 01:01:49,504 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:01:49" (1/1) ... [2020-07-20 01:01:49,534 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:01:49" (1/1) ... [2020-07-20 01:01:49,544 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:01:49" (1/1) ... [2020-07-20 01:01:49,550 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:01:49" (1/1) ... [2020-07-20 01:01:49,565 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 01:01:49,566 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 01:01:49,566 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 01:01:49,566 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 01:01:49,567 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:01:49" (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 01:01:49,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 01:01:49,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 01:01:49,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-20 01:01:49,635 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-20 01:01:49,635 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-20 01:01:49,635 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-20 01:01:49,635 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-20 01:01:49,636 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-20 01:01:49,636 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-20 01:01:49,636 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-20 01:01:49,636 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-20 01:01:49,637 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-20 01:01:49,637 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-20 01:01:49,638 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-20 01:01:49,638 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-20 01:01:49,639 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-20 01:01:49,639 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-07-20 01:01:49,639 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-20 01:01:49,639 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-20 01:01:49,639 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-20 01:01:49,639 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-20 01:01:49,640 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-20 01:01:49,640 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-20 01:01:49,640 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-20 01:01:49,640 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-20 01:01:49,641 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-20 01:01:49,641 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-20 01:01:49,641 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-20 01:01:49,641 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-20 01:01:49,641 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-20 01:01:49,642 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-20 01:01:49,642 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-20 01:01:49,642 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-20 01:01:49,643 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-20 01:01:49,643 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-20 01:01:49,643 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-20 01:01:49,643 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-20 01:01:49,644 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 01:01:49,644 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-07-20 01:01:49,644 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 01:01:49,644 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 01:01:49,644 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-20 01:01:49,645 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-20 01:01:49,645 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-20 01:01:49,645 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-20 01:01:49,645 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-20 01:01:49,645 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-20 01:01:49,645 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-20 01:01:49,646 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-20 01:01:49,646 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-20 01:01:49,646 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-20 01:01:49,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-20 01:01:49,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-20 01:01:49,646 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-20 01:01:49,646 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-20 01:01:49,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-20 01:01:49,647 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-20 01:01:49,647 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-20 01:01:49,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-20 01:01:49,647 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-20 01:01:49,648 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-20 01:01:49,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-20 01:01:49,648 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-20 01:01:49,648 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-20 01:01:49,649 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-20 01:01:49,649 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-20 01:01:49,649 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-20 01:01:49,649 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-20 01:01:49,649 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-20 01:01:49,649 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-20 01:01:49,649 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-20 01:01:49,650 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-20 01:01:49,650 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-20 01:01:49,651 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-20 01:01:49,651 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-20 01:01:49,651 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-20 01:01:49,651 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-20 01:01:49,652 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-07-20 01:01:49,652 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-20 01:01:49,652 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-20 01:01:49,652 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-20 01:01:49,652 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-07-20 01:01:49,653 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-20 01:01:49,654 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-20 01:01:49,654 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-20 01:01:49,654 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-20 01:01:49,654 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-20 01:01:49,655 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-20 01:01:49,655 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 01:01:49,655 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 01:01:49,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-20 01:01:49,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 01:01:50,787 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 01:01:50,788 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-20 01:01:50,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 01:01:50 BoogieIcfgContainer [2020-07-20 01:01:50,793 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 01:01:50,794 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 01:01:50,795 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 01:01:50,798 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 01:01:50,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 01:01:48" (1/3) ... [2020-07-20 01:01:50,799 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d797092 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 01:01:50, skipping insertion in model container [2020-07-20 01:01:50,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:01:49" (2/3) ... [2020-07-20 01:01:50,800 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d797092 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 01:01:50, skipping insertion in model container [2020-07-20 01:01:50,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 01:01:50" (3/3) ... [2020-07-20 01:01:50,801 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product39.cil.c [2020-07-20 01:01:50,812 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-20 01:01:50,821 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 01:01:50,835 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 01:01:50,858 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 01:01:50,858 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 01:01:50,859 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-20 01:01:50,859 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 01:01:50,859 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 01:01:50,859 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 01:01:50,859 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 01:01:50,860 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 01:01:50,883 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states. [2020-07-20 01:01:50,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-20 01:01:50,893 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:01:50,895 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 01:01:50,895 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:01:50,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:01:50,902 INFO L82 PathProgramCache]: Analyzing trace with hash -1123456625, now seen corresponding path program 1 times [2020-07-20 01:01:50,910 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:01:50,911 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893814428] [2020-07-20 01:01:50,911 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@70e5d254 [2020-07-20 01:01:51,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:01:51,573 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-20 01:01:51,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:01:51,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:01:51,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:01:51,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:01:51,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:01:51,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:01:51,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:01:51,739 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 01:01:51,740 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893814428] [2020-07-20 01:01:51,741 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 01:01:51,742 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 01:01:51,743 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878603319] [2020-07-20 01:01:51,748 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 01:01:51,748 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:01:51,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 01:01:51,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 01:01:51,766 INFO L87 Difference]: Start difference. First operand 175 states. Second operand 3 states. [2020-07-20 01:01:52,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:01:52,956 INFO L93 Difference]: Finished difference Result 307 states and 401 transitions. [2020-07-20 01:01:52,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 01:01:52,958 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-07-20 01:01:52,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:01:52,973 INFO L225 Difference]: With dead ends: 307 [2020-07-20 01:01:52,974 INFO L226 Difference]: Without dead ends: 166 [2020-07-20 01:01:52,979 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 01:01:53,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2020-07-20 01:01:53,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 132. [2020-07-20 01:01:53,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-07-20 01:01:53,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 155 transitions. [2020-07-20 01:01:53,086 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 155 transitions. Word has length 46 [2020-07-20 01:01:53,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:01:53,086 INFO L479 AbstractCegarLoop]: Abstraction has 132 states and 155 transitions. [2020-07-20 01:01:53,087 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 01:01:53,087 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 155 transitions. [2020-07-20 01:01:53,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-07-20 01:01:53,090 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:01:53,091 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 01:01:53,091 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-20 01:01:53,091 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:01:53,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:01:53,092 INFO L82 PathProgramCache]: Analyzing trace with hash -790150173, now seen corresponding path program 1 times [2020-07-20 01:01:53,092 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:01:53,092 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812216721] [2020-07-20 01:01:53,093 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@70e5d254 [2020-07-20 01:01:53,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:01:53,429 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-20 01:01:53,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:01:53,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:01:53,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:01:53,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:01:53,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:01:53,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:01:53,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:01:53,473 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 01:01:53,473 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812216721] [2020-07-20 01:01:53,474 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 01:01:53,474 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 01:01:53,474 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951659365] [2020-07-20 01:01:53,476 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 01:01:53,476 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:01:53,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 01:01:53,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 01:01:53,477 INFO L87 Difference]: Start difference. First operand 132 states and 155 transitions. Second operand 4 states. [2020-07-20 01:01:53,908 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-20 01:01:54,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:01:54,682 INFO L93 Difference]: Finished difference Result 234 states and 284 transitions. [2020-07-20 01:01:54,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 01:01:54,683 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-07-20 01:01:54,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:01:54,686 INFO L225 Difference]: With dead ends: 234 [2020-07-20 01:01:54,687 INFO L226 Difference]: Without dead ends: 150 [2020-07-20 01:01:54,688 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-20 01:01:54,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2020-07-20 01:01:54,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 123. [2020-07-20 01:01:54,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-07-20 01:01:54,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 143 transitions. [2020-07-20 01:01:54,726 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 143 transitions. Word has length 47 [2020-07-20 01:01:54,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:01:54,727 INFO L479 AbstractCegarLoop]: Abstraction has 123 states and 143 transitions. [2020-07-20 01:01:54,727 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 01:01:54,727 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 143 transitions. [2020-07-20 01:01:54,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-20 01:01:54,729 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:01:54,730 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 01:01:54,730 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-20 01:01:54,730 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:01:54,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:01:54,730 INFO L82 PathProgramCache]: Analyzing trace with hash 271076632, now seen corresponding path program 1 times [2020-07-20 01:01:54,731 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:01:54,731 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563834017] [2020-07-20 01:01:54,731 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@70e5d254 [2020-07-20 01:01:54,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:01:55,046 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-20 01:01:55,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:01:55,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:01:55,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:01:55,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:01:55,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:01:55,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:01:55,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:01:55,166 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 01:01:55,167 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563834017] [2020-07-20 01:01:55,167 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 01:01:55,167 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-20 01:01:55,168 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581510162] [2020-07-20 01:01:55,171 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-20 01:01:55,171 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:01:55,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-20 01:01:55,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-20 01:01:55,172 INFO L87 Difference]: Start difference. First operand 123 states and 143 transitions. Second operand 8 states. [2020-07-20 01:01:55,539 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-20 01:01:55,855 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-20 01:01:56,118 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-20 01:01:56,341 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-20 01:01:57,060 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-20 01:01:58,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:01:58,772 INFO L93 Difference]: Finished difference Result 421 states and 521 transitions. [2020-07-20 01:01:58,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-20 01:01:58,773 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 51 [2020-07-20 01:01:58,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:01:58,779 INFO L225 Difference]: With dead ends: 421 [2020-07-20 01:01:58,779 INFO L226 Difference]: Without dead ends: 322 [2020-07-20 01:01:58,781 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-07-20 01:01:58,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2020-07-20 01:01:58,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 264. [2020-07-20 01:01:58,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2020-07-20 01:01:58,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 318 transitions. [2020-07-20 01:01:58,883 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 318 transitions. Word has length 51 [2020-07-20 01:01:58,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:01:58,885 INFO L479 AbstractCegarLoop]: Abstraction has 264 states and 318 transitions. [2020-07-20 01:01:58,885 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-20 01:01:58,885 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 318 transitions. [2020-07-20 01:01:58,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-07-20 01:01:58,898 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:01:58,898 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 01:01:58,898 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-20 01:01:58,898 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:01:58,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:01:58,899 INFO L82 PathProgramCache]: Analyzing trace with hash -1813365187, now seen corresponding path program 1 times [2020-07-20 01:01:58,905 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:01:58,906 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958639668] [2020-07-20 01:01:58,906 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@70e5d254 [2020-07-20 01:01:58,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:01:59,316 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-20 01:01:59,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:01:59,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:01:59,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:01:59,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:01:59,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:01:59,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:01:59,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:01:59,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:01:59,456 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 01:01:59,456 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958639668] [2020-07-20 01:01:59,457 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 01:01:59,457 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-07-20 01:01:59,457 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447483463] [2020-07-20 01:01:59,458 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-20 01:01:59,458 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:01:59,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-20 01:01:59,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-07-20 01:01:59,459 INFO L87 Difference]: Start difference. First operand 264 states and 318 transitions. Second operand 12 states. [2020-07-20 01:01:59,956 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-20 01:02:00,249 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-20 01:02:00,491 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-20 01:02:00,726 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-20 01:02:01,298 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-20 01:02:02,073 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-20 01:02:02,466 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-20 01:02:02,780 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-20 01:02:03,071 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-20 01:02:03,318 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-20 01:02:03,754 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-20 01:02:04,132 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-20 01:02:04,380 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-20 01:02:05,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:02:05,994 INFO L93 Difference]: Finished difference Result 1065 states and 1468 transitions. [2020-07-20 01:02:05,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-07-20 01:02:05,995 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 57 [2020-07-20 01:02:05,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:02:06,002 INFO L225 Difference]: With dead ends: 1065 [2020-07-20 01:02:06,002 INFO L226 Difference]: Without dead ends: 825 [2020-07-20 01:02:06,005 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2020-07-20 01:02:06,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 825 states. [2020-07-20 01:02:06,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 825 to 732. [2020-07-20 01:02:06,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 732 states. [2020-07-20 01:02:06,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 932 transitions. [2020-07-20 01:02:06,161 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 932 transitions. Word has length 57 [2020-07-20 01:02:06,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:02:06,161 INFO L479 AbstractCegarLoop]: Abstraction has 732 states and 932 transitions. [2020-07-20 01:02:06,161 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-20 01:02:06,162 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 932 transitions. [2020-07-20 01:02:06,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-07-20 01:02:06,164 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:02:06,165 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:02:06,165 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-20 01:02:06,165 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:02:06,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:02:06,166 INFO L82 PathProgramCache]: Analyzing trace with hash 2128676035, now seen corresponding path program 1 times [2020-07-20 01:02:06,166 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:02:06,166 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673548465] [2020-07-20 01:02:06,166 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@70e5d254 [2020-07-20 01:02:06,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:06,415 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-20 01:02:06,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:06,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:06,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:06,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:06,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:06,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:06,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:06,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:06,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:06,478 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 01:02:06,478 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673548465] [2020-07-20 01:02:06,479 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 01:02:06,479 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 01:02:06,479 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719055519] [2020-07-20 01:02:06,479 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 01:02:06,480 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:02:06,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 01:02:06,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-20 01:02:06,480 INFO L87 Difference]: Start difference. First operand 732 states and 932 transitions. Second operand 6 states. [2020-07-20 01:02:06,851 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-20 01:02:08,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:02:08,727 INFO L93 Difference]: Finished difference Result 1759 states and 2407 transitions. [2020-07-20 01:02:08,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-20 01:02:08,728 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 61 [2020-07-20 01:02:08,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:02:08,740 INFO L225 Difference]: With dead ends: 1759 [2020-07-20 01:02:08,740 INFO L226 Difference]: Without dead ends: 1051 [2020-07-20 01:02:08,746 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-07-20 01:02:08,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1051 states. [2020-07-20 01:02:08,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1051 to 964. [2020-07-20 01:02:08,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 964 states. [2020-07-20 01:02:08,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 964 states to 964 states and 1220 transitions. [2020-07-20 01:02:08,976 INFO L78 Accepts]: Start accepts. Automaton has 964 states and 1220 transitions. Word has length 61 [2020-07-20 01:02:08,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:02:08,977 INFO L479 AbstractCegarLoop]: Abstraction has 964 states and 1220 transitions. [2020-07-20 01:02:08,977 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 01:02:08,977 INFO L276 IsEmpty]: Start isEmpty. Operand 964 states and 1220 transitions. [2020-07-20 01:02:08,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-07-20 01:02:08,980 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:02:08,981 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:02:08,982 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-20 01:02:08,982 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:02:08,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:02:08,982 INFO L82 PathProgramCache]: Analyzing trace with hash -1754610703, now seen corresponding path program 1 times [2020-07-20 01:02:08,982 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:02:08,983 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009972886] [2020-07-20 01:02:08,983 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@70e5d254 [2020-07-20 01:02:09,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:09,332 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-20 01:02:09,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:09,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:09,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:09,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:09,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:09,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:09,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:09,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:09,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:09,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:09,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:09,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:09,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:09,575 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 12 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-20 01:02:09,576 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009972886] [2020-07-20 01:02:09,577 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1972639279] [2020-07-20 01:02:09,577 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@20da34c0 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:02:10,071 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@20da34c0 issued 4 check-sat command(s) [2020-07-20 01:02:10,071 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:02:10,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 751 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-20 01:02:10,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:02:10,206 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-20 01:02:10,206 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:02:10,206 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7] total 12 [2020-07-20 01:02:10,207 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996322106] [2020-07-20 01:02:10,208 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-20 01:02:10,208 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:02:10,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-20 01:02:10,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2020-07-20 01:02:10,208 INFO L87 Difference]: Start difference. First operand 964 states and 1220 transitions. Second operand 12 states. [2020-07-20 01:02:10,873 WARN L193 SmtUtils]: Spent 499.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 186 [2020-07-20 01:02:11,463 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-20 01:02:13,295 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-20 01:02:13,699 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-20 01:02:16,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:02:16,851 INFO L93 Difference]: Finished difference Result 2578 states and 3535 transitions. [2020-07-20 01:02:16,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-07-20 01:02:16,856 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 88 [2020-07-20 01:02:16,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:02:16,867 INFO L225 Difference]: With dead ends: 2578 [2020-07-20 01:02:16,868 INFO L226 Difference]: Without dead ends: 1881 [2020-07-20 01:02:16,872 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 117 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 292 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=274, Invalid=986, Unknown=0, NotChecked=0, Total=1260 [2020-07-20 01:02:16,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1881 states. [2020-07-20 01:02:17,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1881 to 1723. [2020-07-20 01:02:17,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1723 states. [2020-07-20 01:02:17,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1723 states to 1723 states and 2205 transitions. [2020-07-20 01:02:17,303 INFO L78 Accepts]: Start accepts. Automaton has 1723 states and 2205 transitions. Word has length 88 [2020-07-20 01:02:17,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:02:17,306 INFO L479 AbstractCegarLoop]: Abstraction has 1723 states and 2205 transitions. [2020-07-20 01:02:17,306 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-20 01:02:17,306 INFO L276 IsEmpty]: Start isEmpty. Operand 1723 states and 2205 transitions. [2020-07-20 01:02:17,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-07-20 01:02:17,312 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:02:17,312 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:02:17,526 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-07-20 01:02:17,527 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:02:17,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:02:17,527 INFO L82 PathProgramCache]: Analyzing trace with hash 974998865, now seen corresponding path program 1 times [2020-07-20 01:02:17,528 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:02:17,528 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709413637] [2020-07-20 01:02:17,528 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@70e5d254 [2020-07-20 01:02:17,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:17,845 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-20 01:02:17,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:17,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:17,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:17,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:17,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:17,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:17,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:17,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:17,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:17,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:17,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:17,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:17,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:17,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:17,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:17,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:18,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:18,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:18,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:18,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:18,028 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-07-20 01:02:18,030 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709413637] [2020-07-20 01:02:18,031 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [72806182] [2020-07-20 01:02:18,031 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1529fd76 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:02:18,463 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1529fd76 issued 3 check-sat command(s) [2020-07-20 01:02:18,463 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:02:18,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 761 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 01:02:18,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:02:18,526 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-20 01:02:18,527 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-20 01:02:18,527 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 10 [2020-07-20 01:02:18,528 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69312747] [2020-07-20 01:02:18,530 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 01:02:18,530 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:02:18,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 01:02:18,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-07-20 01:02:18,534 INFO L87 Difference]: Start difference. First operand 1723 states and 2205 transitions. Second operand 6 states. [2020-07-20 01:02:18,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:02:18,879 INFO L93 Difference]: Finished difference Result 3462 states and 4552 transitions. [2020-07-20 01:02:18,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 01:02:18,879 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 126 [2020-07-20 01:02:18,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:02:18,891 INFO L225 Difference]: With dead ends: 3462 [2020-07-20 01:02:18,891 INFO L226 Difference]: Without dead ends: 1763 [2020-07-20 01:02:18,898 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 164 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-07-20 01:02:18,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1763 states. [2020-07-20 01:02:19,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1763 to 1763. [2020-07-20 01:02:19,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1763 states. [2020-07-20 01:02:19,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1763 states to 1763 states and 2253 transitions. [2020-07-20 01:02:19,239 INFO L78 Accepts]: Start accepts. Automaton has 1763 states and 2253 transitions. Word has length 126 [2020-07-20 01:02:19,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:02:19,239 INFO L479 AbstractCegarLoop]: Abstraction has 1763 states and 2253 transitions. [2020-07-20 01:02:19,239 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 01:02:19,239 INFO L276 IsEmpty]: Start isEmpty. Operand 1763 states and 2253 transitions. [2020-07-20 01:02:19,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-07-20 01:02:19,244 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:02:19,244 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:02:19,460 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:02:19,460 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:02:19,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:02:19,461 INFO L82 PathProgramCache]: Analyzing trace with hash 1002064467, now seen corresponding path program 1 times [2020-07-20 01:02:19,461 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:02:19,462 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991317026] [2020-07-20 01:02:19,462 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@70e5d254 [2020-07-20 01:02:19,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:19,719 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-20 01:02:19,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:19,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:19,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:19,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:19,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:19,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:19,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:19,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:19,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:19,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:19,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:19,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:19,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:19,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:19,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:19,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:19,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:19,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:19,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:19,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:19,960 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-07-20 01:02:19,961 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991317026] [2020-07-20 01:02:19,961 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [88103981] [2020-07-20 01:02:19,961 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@18a25e77 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:02:20,560 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@18a25e77 issued 3 check-sat command(s) [2020-07-20 01:02:20,560 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:02:20,567 INFO L263 TraceCheckSpWp]: Trace formula consists of 762 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-20 01:02:20,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:02:20,606 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-20 01:02:20,606 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-20 01:02:20,607 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 12 [2020-07-20 01:02:20,607 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717156604] [2020-07-20 01:02:20,608 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 01:02:20,608 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:02:20,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 01:02:20,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-07-20 01:02:20,609 INFO L87 Difference]: Start difference. First operand 1763 states and 2253 transitions. Second operand 5 states. [2020-07-20 01:02:21,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:02:21,148 INFO L93 Difference]: Finished difference Result 3226 states and 4208 transitions. [2020-07-20 01:02:21,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 01:02:21,149 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 126 [2020-07-20 01:02:21,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:02:21,161 INFO L225 Difference]: With dead ends: 3226 [2020-07-20 01:02:21,161 INFO L226 Difference]: Without dead ends: 1487 [2020-07-20 01:02:21,171 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-07-20 01:02:21,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1487 states. [2020-07-20 01:02:21,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1487 to 1487. [2020-07-20 01:02:21,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1487 states. [2020-07-20 01:02:21,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1487 states to 1487 states and 1859 transitions. [2020-07-20 01:02:21,642 INFO L78 Accepts]: Start accepts. Automaton has 1487 states and 1859 transitions. Word has length 126 [2020-07-20 01:02:21,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:02:21,643 INFO L479 AbstractCegarLoop]: Abstraction has 1487 states and 1859 transitions. [2020-07-20 01:02:21,643 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 01:02:21,643 INFO L276 IsEmpty]: Start isEmpty. Operand 1487 states and 1859 transitions. [2020-07-20 01:02:21,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-07-20 01:02:21,647 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:02:21,649 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:02:21,864 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:02:21,865 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:02:21,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:02:21,865 INFO L82 PathProgramCache]: Analyzing trace with hash 1767310158, now seen corresponding path program 1 times [2020-07-20 01:02:21,865 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:02:21,866 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127991476] [2020-07-20 01:02:21,866 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@70e5d254 [2020-07-20 01:02:21,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:22,206 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-20 01:02:22,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:22,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:22,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:22,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:22,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:22,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:22,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:22,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:22,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:22,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:22,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:22,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:22,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:22,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:22,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:22,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:22,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:22,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:22,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:22,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:22,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:22,423 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-07-20 01:02:22,423 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127991476] [2020-07-20 01:02:22,424 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1090550159] [2020-07-20 01:02:22,424 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@10290f8 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:02:22,868 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@10290f8 issued 4 check-sat command(s) [2020-07-20 01:02:22,868 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:02:22,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 839 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 01:02:22,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:02:23,048 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 01:02:23,048 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:02:23,048 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 9] total 20 [2020-07-20 01:02:23,048 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656905362] [2020-07-20 01:02:23,049 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-07-20 01:02:23,049 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:02:23,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-07-20 01:02:23,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2020-07-20 01:02:23,050 INFO L87 Difference]: Start difference. First operand 1487 states and 1859 transitions. Second operand 20 states. [2020-07-20 01:02:23,708 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-20 01:02:24,474 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-20 01:02:24,803 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-20 01:02:25,397 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-20 01:02:25,876 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-20 01:02:26,264 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-20 01:02:26,567 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-20 01:02:26,846 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-20 01:02:27,349 WARN L193 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-07-20 01:02:27,725 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-20 01:02:28,029 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-20 01:02:28,291 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-20 01:02:28,586 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-20 01:02:29,116 WARN L193 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-07-20 01:02:29,509 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-20 01:02:29,846 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-20 01:02:32,020 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-20 01:02:32,333 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-20 01:02:32,613 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-20 01:02:32,882 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-20 01:02:33,177 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-20 01:02:33,479 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-20 01:02:33,743 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-20 01:02:34,000 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-20 01:02:34,291 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-20 01:02:34,549 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-20 01:02:35,688 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-20 01:02:36,078 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-20 01:02:36,368 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-20 01:02:36,667 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-20 01:02:36,930 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-20 01:02:37,189 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-20 01:02:37,482 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-20 01:02:37,750 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-20 01:02:38,013 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-20 01:02:38,289 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-20 01:02:38,599 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-20 01:02:38,881 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-20 01:02:41,606 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-20 01:02:42,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:02:42,389 INFO L93 Difference]: Finished difference Result 4596 states and 6363 transitions. [2020-07-20 01:02:42,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2020-07-20 01:02:42,389 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 130 [2020-07-20 01:02:42,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:02:42,408 INFO L225 Difference]: With dead ends: 4596 [2020-07-20 01:02:42,408 INFO L226 Difference]: Without dead ends: 3133 [2020-07-20 01:02:42,416 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3070 ImplicationChecksByTransitivity, 11.3s TimeCoverageRelationStatistics Valid=1335, Invalid=7595, Unknown=0, NotChecked=0, Total=8930 [2020-07-20 01:02:42,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3133 states. [2020-07-20 01:02:42,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3133 to 2389. [2020-07-20 01:02:42,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2389 states. [2020-07-20 01:02:42,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2389 states to 2389 states and 2930 transitions. [2020-07-20 01:02:42,951 INFO L78 Accepts]: Start accepts. Automaton has 2389 states and 2930 transitions. Word has length 130 [2020-07-20 01:02:42,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:02:42,952 INFO L479 AbstractCegarLoop]: Abstraction has 2389 states and 2930 transitions. [2020-07-20 01:02:42,952 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-07-20 01:02:42,953 INFO L276 IsEmpty]: Start isEmpty. Operand 2389 states and 2930 transitions. [2020-07-20 01:02:42,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-07-20 01:02:42,961 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:02:42,962 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:02:43,176 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:02:43,177 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:02:43,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:02:43,177 INFO L82 PathProgramCache]: Analyzing trace with hash -1245105721, now seen corresponding path program 1 times [2020-07-20 01:02:43,177 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:02:43,178 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217270731] [2020-07-20 01:02:43,178 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@70e5d254 [2020-07-20 01:02:43,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:43,511 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-20 01:02:43,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:43,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:43,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:43,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:43,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:43,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:43,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:43,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:43,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:43,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:43,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:43,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:43,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:43,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:43,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:43,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:43,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:43,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:43,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:43,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:43,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:43,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:43,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:43,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:43,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:43,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:43,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:43,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:43,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:43,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:43,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:02:43,676 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2020-07-20 01:02:43,676 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217270731] [2020-07-20 01:02:43,676 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1813279037] [2020-07-20 01:02:43,677 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@13fe6cf0 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:02:44,241 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@13fe6cf0 issued 4 check-sat command(s) [2020-07-20 01:02:44,241 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:02:44,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 964 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 01:02:44,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:02:44,307 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2020-07-20 01:02:44,308 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-20 01:02:44,308 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 12 [2020-07-20 01:02:44,308 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625207635] [2020-07-20 01:02:44,309 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 01:02:44,309 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:02:44,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 01:02:44,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-07-20 01:02:44,310 INFO L87 Difference]: Start difference. First operand 2389 states and 2930 transitions. Second operand 6 states. [2020-07-20 01:02:44,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:02:44,869 INFO L93 Difference]: Finished difference Result 2420 states and 2962 transitions. [2020-07-20 01:02:44,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 01:02:44,870 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 185 [2020-07-20 01:02:44,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:02:44,883 INFO L225 Difference]: With dead ends: 2420 [2020-07-20 01:02:44,884 INFO L226 Difference]: Without dead ends: 2417 [2020-07-20 01:02:44,886 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2020-07-20 01:02:44,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2417 states. [2020-07-20 01:02:45,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2417 to 2389. [2020-07-20 01:02:45,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2389 states. [2020-07-20 01:02:45,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2389 states to 2389 states and 2920 transitions. [2020-07-20 01:02:45,364 INFO L78 Accepts]: Start accepts. Automaton has 2389 states and 2920 transitions. Word has length 185 [2020-07-20 01:02:45,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:02:45,364 INFO L479 AbstractCegarLoop]: Abstraction has 2389 states and 2920 transitions. [2020-07-20 01:02:45,365 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 01:02:45,365 INFO L276 IsEmpty]: Start isEmpty. Operand 2389 states and 2920 transitions. [2020-07-20 01:02:45,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-07-20 01:02:45,373 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:02:45,373 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-20 01:02:45,587 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-07-20 01:02:45,588 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:02:45,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:02:45,589 INFO L82 PathProgramCache]: Analyzing trace with hash -116138867, now seen corresponding path program 1 times [2020-07-20 01:02:45,589 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:02:45,589 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291739435] [2020-07-20 01:02:45,590 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@70e5d254 [2020-07-20 01:02:45,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 01:02:45,677 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 01:02:45,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 01:02:45,740 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 01:02:45,949 INFO L174 FreeRefinementEngine]: Strategy CAMEL_SMT_AM found a feasible trace [2020-07-20 01:02:45,952 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-20 01:02:45,952 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-07-20 01:02:46,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 01:02:46 BoogieIcfgContainer [2020-07-20 01:02:46,219 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 01:02:46,223 INFO L168 Benchmark]: Toolchain (without parser) took 57410.88 ms. Allocated memory was 137.9 MB in the beginning and 915.9 MB in the end (delta: 778.0 MB). Free memory was 101.3 MB in the beginning and 186.7 MB in the end (delta: -85.5 MB). Peak memory consumption was 692.6 MB. Max. memory is 7.1 GB. [2020-07-20 01:02:46,225 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-20 01:02:46,226 INFO L168 Benchmark]: CACSL2BoogieTranslator took 658.13 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 101.0 MB in the beginning and 171.8 MB in the end (delta: -70.7 MB). Peak memory consumption was 29.4 MB. Max. memory is 7.1 GB. [2020-07-20 01:02:46,230 INFO L168 Benchmark]: Boogie Preprocessor took 95.58 ms. Allocated memory is still 202.4 MB. Free memory was 171.8 MB in the beginning and 167.6 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-07-20 01:02:46,235 INFO L168 Benchmark]: RCFGBuilder took 1227.38 ms. Allocated memory was 202.4 MB in the beginning and 234.9 MB in the end (delta: 32.5 MB). Free memory was 167.6 MB in the beginning and 196.9 MB in the end (delta: -29.3 MB). Peak memory consumption was 85.7 MB. Max. memory is 7.1 GB. [2020-07-20 01:02:46,235 INFO L168 Benchmark]: TraceAbstraction took 55424.31 ms. Allocated memory was 234.9 MB in the beginning and 915.9 MB in the end (delta: 681.1 MB). Free memory was 196.9 MB in the beginning and 186.7 MB in the end (delta: 10.2 MB). Peak memory consumption was 691.3 MB. Max. memory is 7.1 GB. [2020-07-20 01:02:46,239 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 658.13 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 101.0 MB in the beginning and 171.8 MB in the end (delta: -70.7 MB). Peak memory consumption was 29.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 95.58 ms. Allocated memory is still 202.4 MB. Free memory was 171.8 MB in the beginning and 167.6 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1227.38 ms. Allocated memory was 202.4 MB in the beginning and 234.9 MB in the end (delta: 32.5 MB). Free memory was 167.6 MB in the beginning and 196.9 MB in the end (delta: -29.3 MB). Peak memory consumption was 85.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 55424.31 ms. Allocated memory was 234.9 MB in the beginning and 915.9 MB in the end (delta: 681.1 MB). Free memory was 196.9 MB in the beginning and 186.7 MB in the end (delta: 10.2 MB). Peak memory consumption was 691.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 722]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L247] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L524] int pumpRunning = 0; [L525] int systemActive = 1; [L728] int waterLevel = 1; [L729] int methaneLevelCritical = 0; [L822] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=170, \old(head)=163, \old(head)=176, \old(methaneLevelCritical)=146, \old(pumpRunning)=138, \old(systemActive)=137, \old(waterLevel)=140, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L895] int retValue_acc ; [L896] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L900] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L901] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L902] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] 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] [L902] 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] [L902] tmp = valid_product() [L904] 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] [L906] 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] [L907] 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] [L889] 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] [L450] int splverifierCounter ; [L451] int tmp ; [L452] int tmp___0 ; [L453] int tmp___1 ; [L454] int tmp___2 ; [L457] 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] [L459] 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] [L461] 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] [L467] tmp = __VERIFIER_nondet_int() [L469] 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] [L471] 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] [L746] COND TRUE waterLevel < 2 [L747] 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] [L471] 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] [L477] tmp___0 = __VERIFIER_nondet_int() [L479] 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] [L487] tmp___2 = __VERIFIER_nondet_int() [L489] 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] [L504] 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] [L532] 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] [L539] 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] [L541] 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] [L587] 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] [L590] 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] [L605] CALL processEnvironment__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] [L561] 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] [L564] 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] [L566] 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] [L684] int retValue_acc ; [L685] int tmp ; [L686] 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] [L690] 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] [L808] 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] [L811] COND FALSE !(waterLevel < 2) [L815] retValue_acc = 0 [L816] 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] [L690] 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] [L690] tmp = isHighWaterSensorDry() [L692] COND FALSE !(\read(tmp)) [L695] 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] [L697] retValue_acc = tmp___0 [L698] 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] [L566] 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] [L566] tmp = isHighWaterLevel() [L568] 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] [L570] 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] [L615] 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] [L570] 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] [L605] RET processEnvironment__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, waterLevel=2] [L541] 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] [L547] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L919] int tmp ; [L920] 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] [L924] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L799] int retValue_acc ; [L802] retValue_acc = waterLevel [L803] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=2, systemActive=1, waterLevel=2] [L924] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L924] tmp = getWaterLevel() [L926] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=2, waterLevel=2] [L547] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L504] 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] [L459] 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] [L461] 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] [L467] tmp = __VERIFIER_nondet_int() [L469] 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] [L477] tmp___0 = __VERIFIER_nondet_int() [L479] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L487] tmp___2 = __VERIFIER_nondet_int() [L489] 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=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L504] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L532] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L534] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L734] COND TRUE waterLevel > 0 [L735] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L534] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L539] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L541] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L587] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L590] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L592] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L628] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L632] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L767] int retValue_acc ; [L770] retValue_acc = methaneLevelCritical [L771] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=1] [L632] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L632] retValue_acc = isMethaneLevelCritical() [L634] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=1] [L592] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L592] tmp = isMethaneAlarm() [L594] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=1] [L600] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L561] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L564] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L579] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L600] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=1] [L541] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L547] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L919] int tmp ; [L920] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L924] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L799] int retValue_acc ; [L802] retValue_acc = waterLevel [L803] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L924] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=1, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L924] tmp = getWaterLevel() [L926] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L547] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L504] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L459] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L461] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L467] tmp = __VERIFIER_nondet_int() [L469] 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=1] [L477] tmp___0 = __VERIFIER_nondet_int() [L479] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L487] tmp___2 = __VERIFIER_nondet_int() [L489] 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=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L504] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L532] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L534] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L734] COND TRUE waterLevel > 0 [L735] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L534] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L539] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L541] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L587] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L590] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L592] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L628] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L632] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L767] int retValue_acc ; [L770] retValue_acc = methaneLevelCritical [L771] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L632] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L632] retValue_acc = isMethaneLevelCritical() [L634] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L592] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L592] tmp = isMethaneAlarm() [L594] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L600] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L561] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L564] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L579] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L600] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L541] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L547] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L919] int tmp ; [L920] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L924] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L799] int retValue_acc ; [L802] retValue_acc = waterLevel [L803] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L924] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, getWaterLevel()=0, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L924] tmp = getWaterLevel() [L926] COND TRUE tmp == 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L928] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L639] int retValue_acc ; [L642] retValue_acc = pumpRunning [L643] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L928] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L928] tmp___0 = isPumpRunning() [L930] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=0] [L932] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L722] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 231 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 55.0s, OverallIterations: 11, TraceHistogramMax: 3, AutomataDifference: 42.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1521 SDtfs, 3421 SDslu, 2903 SDs, 0 SdLazy, 10707 SolverSat, 2688 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 18.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1189 GetRequests, 979 SyntacticMatches, 3 SemanticMatches, 207 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3528 ImplicationChecksByTransitivity, 20.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2389occurred 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: 2.8s AutomataMinimizationTime, 10 MinimizatonAttempts, 1229 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 2.5s SatisfiabilityAnalysisTime, 4.8s InterpolantComputationTime, 1757 NumberOfCodeBlocks, 1697 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 1557 ConstructedInterpolants, 0 QuantifiedInterpolants, 458259 SizeOfPredicates, 13 NumberOfNonLiveVariables, 4077 ConjunctsInSsa, 53 ConjunctsInUnsatCore, 15 InterpolantComputations, 8 PerfectInterpolantSequences, 354/380 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...