/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_FUNCTIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product55.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 13:02:05,531 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 13:02:05,534 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 13:02:05,546 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 13:02:05,546 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 13:02:05,547 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 13:02:05,549 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 13:02:05,550 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 13:02:05,552 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 13:02:05,553 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 13:02:05,556 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 13:02:05,561 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 13:02:05,562 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 13:02:05,564 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 13:02:05,565 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 13:02:05,566 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 13:02:05,567 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 13:02:05,568 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 13:02:05,570 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 13:02:05,571 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 13:02:05,573 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 13:02:05,574 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 13:02:05,575 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 13:02:05,575 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 13:02:05,578 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-20 13:02:05,578 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-20 13:02:05,578 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-20 13:02:05,579 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-20 13:02:05,580 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-20 13:02:05,581 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-20 13:02:05,581 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-20 13:02:05,582 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-20 13:02:05,582 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-20 13:02:05,583 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-20 13:02:05,584 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-20 13:02:05,584 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-20 13:02:05,585 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-20 13:02:05,585 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-20 13:02:05,585 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 13:02:05,586 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 13:02:05,587 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 13:02:05,588 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-20 13:02:05,602 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 13:02:05,603 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 13:02:05,604 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 13:02:05,604 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 13:02:05,604 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 13:02:05,604 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 13:02:05,605 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 13:02:05,605 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 13:02:05,605 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 13:02:05,605 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 13:02:05,605 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 13:02:05,606 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 13:02:05,606 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 13:02:05,606 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 13:02:05,606 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 13:02:05,606 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 13:02:05,607 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 13:02:05,607 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 13:02:05,607 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 13:02:05,607 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 13:02:05,607 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 13:02:05,608 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 13:02:05,608 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 13:02:05,608 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 13:02:05,608 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 13:02:05,608 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 13:02:05,609 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:05,609 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 13:02:05,609 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 13:02:05,609 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_FUNCTIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-20 13:02:05,895 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 13:02:05,908 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 13:02:05,911 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 13:02:05,913 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 13:02:05,913 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 13:02:05,914 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product55.cil.c [2020-07-20 13:02:05,993 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c397ce80/9845f91cb54142b7b114f169cbf999fb/FLAGa9fb4cdff [2020-07-20 13:02:06,558 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 13:02:06,559 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product55.cil.c [2020-07-20 13:02:06,573 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c397ce80/9845f91cb54142b7b114f169cbf999fb/FLAGa9fb4cdff [2020-07-20 13:02:06,934 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c397ce80/9845f91cb54142b7b114f169cbf999fb [2020-07-20 13:02:06,945 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 13:02:06,948 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 13:02:06,949 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 13:02:06,949 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 13:02:06,952 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 13:02:06,953 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:02:06" (1/1) ... [2020-07-20 13:02:06,956 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16223c35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:02:06, skipping insertion in model container [2020-07-20 13:02:06,957 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:02:06" (1/1) ... [2020-07-20 13:02:06,964 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 13:02:07,006 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 13:02:07,486 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 13:02:07,498 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 13:02:07,571 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 13:02:07,624 INFO L208 MainTranslator]: Completed translation [2020-07-20 13:02:07,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:02:07 WrapperNode [2020-07-20 13:02:07,630 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 13:02:07,632 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 13:02:07,632 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 13:02:07,632 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 13:02:07,646 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:02:07" (1/1) ... [2020-07-20 13:02:07,647 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:02:07" (1/1) ... [2020-07-20 13:02:07,666 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:02:07" (1/1) ... [2020-07-20 13:02:07,667 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:02:07" (1/1) ... [2020-07-20 13:02:07,699 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:02:07" (1/1) ... [2020-07-20 13:02:07,711 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:02:07" (1/1) ... [2020-07-20 13:02:07,717 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:02:07" (1/1) ... [2020-07-20 13:02:07,730 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 13:02:07,732 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 13:02:07,732 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 13:02:07,732 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 13:02:07,733 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:02:07" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 13:02:07,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 13:02:07,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 13:02:07,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-20 13:02:07,808 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-20 13:02:07,808 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-20 13:02:07,809 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-20 13:02:07,809 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-20 13:02:07,809 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-20 13:02:07,809 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-20 13:02:07,809 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-20 13:02:07,809 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-20 13:02:07,810 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-20 13:02:07,810 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-20 13:02:07,810 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-20 13:02:07,810 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-07-20 13:02:07,810 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-20 13:02:07,810 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-20 13:02:07,811 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-20 13:02:07,811 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-07-20 13:02:07,811 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-07-20 13:02:07,811 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-20 13:02:07,811 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-20 13:02:07,811 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-20 13:02:07,812 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-20 13:02:07,812 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-20 13:02:07,812 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-20 13:02:07,812 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-20 13:02:07,812 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-07-20 13:02:07,812 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-20 13:02:07,812 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-20 13:02:07,813 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-20 13:02:07,813 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-20 13:02:07,813 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-20 13:02:07,813 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-20 13:02:07,813 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-20 13:02:07,813 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-07-20 13:02:07,814 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-07-20 13:02:07,814 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-20 13:02:07,814 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-20 13:02:07,814 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-20 13:02:07,814 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-20 13:02:07,814 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 13:02:07,814 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-20 13:02:07,815 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 13:02:07,815 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 13:02:07,815 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-20 13:02:07,815 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-20 13:02:07,815 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-20 13:02:07,815 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-20 13:02:07,815 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-20 13:02:07,816 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-20 13:02:07,816 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-20 13:02:07,816 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-20 13:02:07,816 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-20 13:02:07,816 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-20 13:02:07,816 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-20 13:02:07,817 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-20 13:02:07,817 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-07-20 13:02:07,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-20 13:02:07,817 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-20 13:02:07,817 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-20 13:02:07,817 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-20 13:02:07,818 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-20 13:02:07,818 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-20 13:02:07,818 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-20 13:02:07,818 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-20 13:02:07,818 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-20 13:02:07,818 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-07-20 13:02:07,818 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-20 13:02:07,819 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-20 13:02:07,819 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-20 13:02:07,819 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-07-20 13:02:07,819 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-07-20 13:02:07,819 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-07-20 13:02:07,819 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-20 13:02:07,819 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-20 13:02:07,820 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-20 13:02:07,820 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-20 13:02:07,820 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-20 13:02:07,820 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-20 13:02:07,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-20 13:02:07,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-20 13:02:07,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-20 13:02:07,821 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-20 13:02:07,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-20 13:02:07,821 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-20 13:02:07,821 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-20 13:02:07,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-20 13:02:07,821 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-20 13:02:07,822 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-20 13:02:07,822 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-20 13:02:07,822 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-20 13:02:07,822 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-07-20 13:02:07,822 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-20 13:02:07,822 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-20 13:02:07,822 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-20 13:02:07,822 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 13:02:07,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 13:02:07,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-20 13:02:07,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 13:02:08,973 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 13:02:08,974 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-20 13:02:08,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 01:02:08 BoogieIcfgContainer [2020-07-20 13:02:08,983 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 13:02:08,984 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 13:02:08,984 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 13:02:08,988 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 13:02:08,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 01:02:06" (1/3) ... [2020-07-20 13:02:08,989 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@104c0ac6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 01:02:08, skipping insertion in model container [2020-07-20 13:02:08,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:02:07" (2/3) ... [2020-07-20 13:02:08,990 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@104c0ac6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 01:02:08, skipping insertion in model container [2020-07-20 13:02:08,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 01:02:08" (3/3) ... [2020-07-20 13:02:08,992 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product55.cil.c [2020-07-20 13:02:09,003 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 13:02:09,012 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 13:02:09,028 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 13:02:09,054 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 13:02:09,054 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 13:02:09,054 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 13:02:09,054 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 13:02:09,055 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 13:02:09,055 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 13:02:09,055 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 13:02:09,055 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 13:02:09,079 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states. [2020-07-20 13:02:09,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-20 13:02:09,089 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:02:09,090 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:02:09,091 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:02:09,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:02:09,096 INFO L82 PathProgramCache]: Analyzing trace with hash 1134611440, now seen corresponding path program 1 times [2020-07-20 13:02:09,102 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:02:09,103 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [614840208] [2020-07-20 13:02:09,103 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:09,748 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 13:02:09,748 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:02:09,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 660 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-20 13:02:09,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:02:09,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 13:02:09,797 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:02:09,802 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [614840208] [2020-07-20 13:02:09,803 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:02:09,804 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-20 13:02:09,805 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115588220] [2020-07-20 13:02:09,810 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-20 13:02:09,811 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:02:09,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-20 13:02:09,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-20 13:02:09,828 INFO L87 Difference]: Start difference. First operand 197 states. Second operand 2 states. [2020-07-20 13:02:09,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:02:09,887 INFO L93 Difference]: Finished difference Result 304 states and 381 transitions. [2020-07-20 13:02:09,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-20 13:02:09,889 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2020-07-20 13:02:09,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:02:09,903 INFO L225 Difference]: With dead ends: 304 [2020-07-20 13:02:09,903 INFO L226 Difference]: Without dead ends: 154 [2020-07-20 13:02:09,908 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-20 13:02:09,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-07-20 13:02:09,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2020-07-20 13:02:09,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-07-20 13:02:09,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 184 transitions. [2020-07-20 13:02:09,967 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 184 transitions. Word has length 51 [2020-07-20 13:02:09,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:02:09,968 INFO L479 AbstractCegarLoop]: Abstraction has 154 states and 184 transitions. [2020-07-20 13:02:09,968 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-20 13:02:09,968 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 184 transitions. [2020-07-20 13:02:09,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-20 13:02:09,973 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:02:09,973 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:02:10,181 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:10,181 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:02:10,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:02:10,182 INFO L82 PathProgramCache]: Analyzing trace with hash -179918531, now seen corresponding path program 1 times [2020-07-20 13:02:10,183 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:02:10,184 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1061422041] [2020-07-20 13:02:10,184 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:10,654 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 13:02:10,654 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:02:10,659 INFO L263 TraceCheckSpWp]: Trace formula consists of 648 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-20 13:02:10,668 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:02:10,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 13:02:10,711 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:02:10,712 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1061422041] [2020-07-20 13:02:10,712 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:02:10,712 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 13:02:10,713 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227348434] [2020-07-20 13:02:10,715 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 13:02:10,715 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:02:10,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 13:02:10,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:02:10,717 INFO L87 Difference]: Start difference. First operand 154 states and 184 transitions. Second operand 3 states. [2020-07-20 13:02:10,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:02:10,765 INFO L93 Difference]: Finished difference Result 247 states and 295 transitions. [2020-07-20 13:02:10,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 13:02:10,766 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-07-20 13:02:10,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:02:10,770 INFO L225 Difference]: With dead ends: 247 [2020-07-20 13:02:10,771 INFO L226 Difference]: Without dead ends: 145 [2020-07-20 13:02:10,774 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:02:10,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2020-07-20 13:02:10,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2020-07-20 13:02:10,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2020-07-20 13:02:10,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 172 transitions. [2020-07-20 13:02:10,807 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 172 transitions. Word has length 52 [2020-07-20 13:02:10,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:02:10,807 INFO L479 AbstractCegarLoop]: Abstraction has 145 states and 172 transitions. [2020-07-20 13:02:10,808 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 13:02:10,808 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 172 transitions. [2020-07-20 13:02:10,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-07-20 13:02:10,816 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:02:10,816 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] [2020-07-20 13:02:11,017 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:11,018 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:02:11,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:02:11,019 INFO L82 PathProgramCache]: Analyzing trace with hash 1227863388, now seen corresponding path program 1 times [2020-07-20 13:02:11,019 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:02:11,020 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [134866753] [2020-07-20 13:02:11,020 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:11,503 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 13:02:11,504 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:02:11,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 690 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-20 13:02:11,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:02:11,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 13:02:11,555 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:02:11,555 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [134866753] [2020-07-20 13:02:11,556 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:02:11,556 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 13:02:11,556 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575406959] [2020-07-20 13:02:11,557 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 13:02:11,558 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:02:11,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 13:02:11,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:02:11,560 INFO L87 Difference]: Start difference. First operand 145 states and 172 transitions. Second operand 3 states. [2020-07-20 13:02:11,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:02:11,593 INFO L93 Difference]: Finished difference Result 377 states and 460 transitions. [2020-07-20 13:02:11,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 13:02:11,593 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 56 [2020-07-20 13:02:11,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:02:11,598 INFO L225 Difference]: With dead ends: 377 [2020-07-20 13:02:11,598 INFO L226 Difference]: Without dead ends: 260 [2020-07-20 13:02:11,600 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:02:11,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2020-07-20 13:02:11,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 256. [2020-07-20 13:02:11,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 256 states. [2020-07-20 13:02:11,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 311 transitions. [2020-07-20 13:02:11,629 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 311 transitions. Word has length 56 [2020-07-20 13:02:11,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:02:11,629 INFO L479 AbstractCegarLoop]: Abstraction has 256 states and 311 transitions. [2020-07-20 13:02:11,630 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 13:02:11,630 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 311 transitions. [2020-07-20 13:02:11,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-07-20 13:02:11,632 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:02:11,632 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:02:11,847 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:11,848 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:02:11,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:02:11,849 INFO L82 PathProgramCache]: Analyzing trace with hash 1601957820, now seen corresponding path program 1 times [2020-07-20 13:02:11,849 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:02:11,850 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [49880461] [2020-07-20 13:02:11,851 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:12,252 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 13:02:12,253 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:02:12,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 711 conjuncts, 23 conjunts are in the unsatisfiable core [2020-07-20 13:02:12,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:02:12,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 13:02:12,323 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:02:12,323 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [49880461] [2020-07-20 13:02:12,324 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:02:12,324 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 13:02:12,324 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208632494] [2020-07-20 13:02:12,325 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 13:02:12,325 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:02:12,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 13:02:12,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-20 13:02:12,326 INFO L87 Difference]: Start difference. First operand 256 states and 311 transitions. Second operand 6 states. [2020-07-20 13:02:12,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:02:12,619 INFO L93 Difference]: Finished difference Result 699 states and 869 transitions. [2020-07-20 13:02:12,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 13:02:12,620 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 62 [2020-07-20 13:02:12,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:02:12,625 INFO L225 Difference]: With dead ends: 699 [2020-07-20 13:02:12,626 INFO L226 Difference]: Without dead ends: 471 [2020-07-20 13:02:12,628 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-20 13:02:12,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2020-07-20 13:02:12,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 467. [2020-07-20 13:02:12,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 467 states. [2020-07-20 13:02:12,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 572 transitions. [2020-07-20 13:02:12,673 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 572 transitions. Word has length 62 [2020-07-20 13:02:12,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:02:12,673 INFO L479 AbstractCegarLoop]: Abstraction has 467 states and 572 transitions. [2020-07-20 13:02:12,673 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 13:02:12,674 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 572 transitions. [2020-07-20 13:02:12,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-07-20 13:02:12,676 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:02:12,676 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:02:12,889 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:12,890 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:02:12,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:02:12,890 INFO L82 PathProgramCache]: Analyzing trace with hash -1204720808, now seen corresponding path program 1 times [2020-07-20 13:02:12,891 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:02:12,892 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1456402660] [2020-07-20 13:02:12,892 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:13,333 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 13:02:13,334 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:02:13,342 INFO L263 TraceCheckSpWp]: Trace formula consists of 721 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 13:02:13,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:02:13,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 13:02:13,389 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:02:13,390 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1456402660] [2020-07-20 13:02:13,390 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:02:13,390 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 13:02:13,390 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219789493] [2020-07-20 13:02:13,391 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 13:02:13,391 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:02:13,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 13:02:13,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-20 13:02:13,392 INFO L87 Difference]: Start difference. First operand 467 states and 572 transitions. Second operand 6 states. [2020-07-20 13:02:13,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:02:13,677 INFO L93 Difference]: Finished difference Result 1122 states and 1440 transitions. [2020-07-20 13:02:13,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 13:02:13,678 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 66 [2020-07-20 13:02:13,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:02:13,686 INFO L225 Difference]: With dead ends: 1122 [2020-07-20 13:02:13,687 INFO L226 Difference]: Without dead ends: 683 [2020-07-20 13:02:13,690 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-20 13:02:13,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 683 states. [2020-07-20 13:02:13,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 683 to 671. [2020-07-20 13:02:13,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 671 states. [2020-07-20 13:02:13,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 826 transitions. [2020-07-20 13:02:13,775 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 826 transitions. Word has length 66 [2020-07-20 13:02:13,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:02:13,776 INFO L479 AbstractCegarLoop]: Abstraction has 671 states and 826 transitions. [2020-07-20 13:02:13,776 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 13:02:13,776 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 826 transitions. [2020-07-20 13:02:13,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-07-20 13:02:13,778 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:02:13,779 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:02:13,991 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:13,992 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:02:13,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:02:13,993 INFO L82 PathProgramCache]: Analyzing trace with hash -763723638, now seen corresponding path program 1 times [2020-07-20 13:02:13,994 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:02:13,994 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [417506045] [2020-07-20 13:02:13,995 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:14,360 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 13:02:14,360 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:02:14,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 773 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 13:02:14,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:02:14,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 13:02:14,405 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:02:14,406 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [417506045] [2020-07-20 13:02:14,406 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:02:14,406 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 13:02:14,406 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665407652] [2020-07-20 13:02:14,407 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 13:02:14,408 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:02:14,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 13:02:14,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-20 13:02:14,409 INFO L87 Difference]: Start difference. First operand 671 states and 826 transitions. Second operand 6 states. [2020-07-20 13:02:14,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:02:14,482 INFO L93 Difference]: Finished difference Result 1334 states and 1680 transitions. [2020-07-20 13:02:14,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 13:02:14,483 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 93 [2020-07-20 13:02:14,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:02:14,491 INFO L225 Difference]: With dead ends: 1334 [2020-07-20 13:02:14,491 INFO L226 Difference]: Without dead ends: 691 [2020-07-20 13:02:14,500 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-20 13:02:14,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2020-07-20 13:02:14,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 691. [2020-07-20 13:02:14,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 691 states. [2020-07-20 13:02:14,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 846 transitions. [2020-07-20 13:02:14,558 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 846 transitions. Word has length 93 [2020-07-20 13:02:14,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:02:14,561 INFO L479 AbstractCegarLoop]: Abstraction has 691 states and 846 transitions. [2020-07-20 13:02:14,561 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 13:02:14,562 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 846 transitions. [2020-07-20 13:02:14,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-07-20 13:02:14,570 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:02:14,570 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:02:14,784 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:14,785 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:02:14,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:02:14,785 INFO L82 PathProgramCache]: Analyzing trace with hash -836110196, now seen corresponding path program 1 times [2020-07-20 13:02:14,785 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:02:14,786 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1970475084] [2020-07-20 13:02:14,786 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:15,213 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 13:02:15,214 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:02:15,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 735 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-20 13:02:15,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:02:15,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 13:02:15,265 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:02:15,266 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1970475084] [2020-07-20 13:02:15,266 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:02:15,266 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 13:02:15,266 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691345805] [2020-07-20 13:02:15,267 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 13:02:15,267 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:02:15,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 13:02:15,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 13:02:15,268 INFO L87 Difference]: Start difference. First operand 691 states and 846 transitions. Second operand 5 states. [2020-07-20 13:02:15,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:02:15,304 INFO L93 Difference]: Finished difference Result 1382 states and 1764 transitions. [2020-07-20 13:02:15,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 13:02:15,307 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 93 [2020-07-20 13:02:15,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:02:15,313 INFO L225 Difference]: With dead ends: 1382 [2020-07-20 13:02:15,313 INFO L226 Difference]: Without dead ends: 719 [2020-07-20 13:02:15,316 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 13:02:15,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2020-07-20 13:02:15,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 707. [2020-07-20 13:02:15,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 707 states. [2020-07-20 13:02:15,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707 states to 707 states and 862 transitions. [2020-07-20 13:02:15,357 INFO L78 Accepts]: Start accepts. Automaton has 707 states and 862 transitions. Word has length 93 [2020-07-20 13:02:15,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:02:15,358 INFO L479 AbstractCegarLoop]: Abstraction has 707 states and 862 transitions. [2020-07-20 13:02:15,358 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 13:02:15,358 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states and 862 transitions. [2020-07-20 13:02:15,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-07-20 13:02:15,360 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:02:15,360 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:02:15,573 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:15,574 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:02:15,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:02:15,575 INFO L82 PathProgramCache]: Analyzing trace with hash -506344435, now seen corresponding path program 1 times [2020-07-20 13:02:15,575 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:02:15,576 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [546315868] [2020-07-20 13:02:15,576 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:16,012 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 13:02:16,012 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:02:16,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 735 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-20 13:02:16,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:02:16,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 13:02:16,046 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:02:16,046 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [546315868] [2020-07-20 13:02:16,046 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:02:16,046 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 13:02:16,047 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781804243] [2020-07-20 13:02:16,047 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 13:02:16,047 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:02:16,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 13:02:16,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:02:16,048 INFO L87 Difference]: Start difference. First operand 707 states and 862 transitions. Second operand 3 states. [2020-07-20 13:02:16,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:02:16,145 INFO L93 Difference]: Finished difference Result 1981 states and 2570 transitions. [2020-07-20 13:02:16,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 13:02:16,145 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 93 [2020-07-20 13:02:16,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:02:16,155 INFO L225 Difference]: With dead ends: 1981 [2020-07-20 13:02:16,155 INFO L226 Difference]: Without dead ends: 1302 [2020-07-20 13:02:16,158 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 90 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:02:16,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1302 states. [2020-07-20 13:02:16,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1302 to 1299. [2020-07-20 13:02:16,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1299 states. [2020-07-20 13:02:16,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1299 states to 1299 states and 1630 transitions. [2020-07-20 13:02:16,230 INFO L78 Accepts]: Start accepts. Automaton has 1299 states and 1630 transitions. Word has length 93 [2020-07-20 13:02:16,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:02:16,231 INFO L479 AbstractCegarLoop]: Abstraction has 1299 states and 1630 transitions. [2020-07-20 13:02:16,231 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 13:02:16,231 INFO L276 IsEmpty]: Start isEmpty. Operand 1299 states and 1630 transitions. [2020-07-20 13:02:16,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-07-20 13:02:16,234 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:02:16,235 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:02:16,447 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:16,448 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:02:16,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:02:16,449 INFO L82 PathProgramCache]: Analyzing trace with hash -1600364013, now seen corresponding path program 1 times [2020-07-20 13:02:16,449 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:02:16,450 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1023555094] [2020-07-20 13:02:16,450 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:17,046 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 13:02:17,046 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:02:17,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 783 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-20 13:02:17,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:02:17,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 13:02:17,084 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:02:17,085 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1023555094] [2020-07-20 13:02:17,085 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:02:17,085 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 13:02:17,085 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178513896] [2020-07-20 13:02:17,086 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 13:02:17,086 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:02:17,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 13:02:17,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:02:17,087 INFO L87 Difference]: Start difference. First operand 1299 states and 1630 transitions. Second operand 3 states. [2020-07-20 13:02:17,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:02:17,183 INFO L93 Difference]: Finished difference Result 2334 states and 2967 transitions. [2020-07-20 13:02:17,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 13:02:17,183 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 97 [2020-07-20 13:02:17,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:02:17,200 INFO L225 Difference]: With dead ends: 2334 [2020-07-20 13:02:17,201 INFO L226 Difference]: Without dead ends: 2331 [2020-07-20 13:02:17,202 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:02:17,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2331 states. [2020-07-20 13:02:17,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2331 to 2235. [2020-07-20 13:02:17,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2235 states. [2020-07-20 13:02:17,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2235 states to 2235 states and 2853 transitions. [2020-07-20 13:02:17,332 INFO L78 Accepts]: Start accepts. Automaton has 2235 states and 2853 transitions. Word has length 97 [2020-07-20 13:02:17,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:02:17,334 INFO L479 AbstractCegarLoop]: Abstraction has 2235 states and 2853 transitions. [2020-07-20 13:02:17,334 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 13:02:17,334 INFO L276 IsEmpty]: Start isEmpty. Operand 2235 states and 2853 transitions. [2020-07-20 13:02:17,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-07-20 13:02:17,342 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:02:17,342 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, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:02:17,555 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:17,556 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:02:17,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:02:17,557 INFO L82 PathProgramCache]: Analyzing trace with hash 407899471, now seen corresponding path program 1 times [2020-07-20 13:02:17,557 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:02:17,558 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1605473906] [2020-07-20 13:02:17,558 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:18,031 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 13:02:18,032 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:02:18,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 820 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-20 13:02:18,042 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:02:18,073 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-07-20 13:02:18,074 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:02:18,074 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1605473906] [2020-07-20 13:02:18,074 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:02:18,075 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 13:02:18,075 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545519898] [2020-07-20 13:02:18,076 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 13:02:18,076 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:02:18,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 13:02:18,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:02:18,077 INFO L87 Difference]: Start difference. First operand 2235 states and 2853 transitions. Second operand 3 states. [2020-07-20 13:02:18,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:02:18,211 INFO L93 Difference]: Finished difference Result 2430 states and 3103 transitions. [2020-07-20 13:02:18,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 13:02:18,211 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 137 [2020-07-20 13:02:18,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:02:18,218 INFO L225 Difference]: With dead ends: 2430 [2020-07-20 13:02:18,219 INFO L226 Difference]: Without dead ends: 1089 [2020-07-20 13:02:18,223 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:02:18,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1089 states. [2020-07-20 13:02:18,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1089 to 894. [2020-07-20 13:02:18,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 894 states. [2020-07-20 13:02:18,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1105 transitions. [2020-07-20 13:02:18,276 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1105 transitions. Word has length 137 [2020-07-20 13:02:18,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:02:18,277 INFO L479 AbstractCegarLoop]: Abstraction has 894 states and 1105 transitions. [2020-07-20 13:02:18,277 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 13:02:18,277 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1105 transitions. [2020-07-20 13:02:18,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-07-20 13:02:18,281 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:02:18,281 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-07-20 13:02:18,494 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:18,495 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:02:18,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:02:18,495 INFO L82 PathProgramCache]: Analyzing trace with hash 1898255401, now seen corresponding path program 1 times [2020-07-20 13:02:18,495 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:02:18,496 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1574068744] [2020-07-20 13:02:18,496 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:18,800 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 13:02:18,800 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:02:18,804 INFO L263 TraceCheckSpWp]: Trace formula consists of 891 conjuncts, 18 conjunts are in the unsatisfiable core [2020-07-20 13:02:18,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:02:18,919 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 52 proven. 7 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-20 13:02:18,920 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 13:02:19,220 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 13:02:19,259 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 13:02:19,431 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 28 proven. 4 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-07-20 13:02:19,431 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1574068744] [2020-07-20 13:02:19,431 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 13:02:19,432 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9] total 12 [2020-07-20 13:02:19,432 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316141347] [2020-07-20 13:02:19,432 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-20 13:02:19,433 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:02:19,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-20 13:02:19,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-07-20 13:02:19,433 INFO L87 Difference]: Start difference. First operand 894 states and 1105 transitions. Second operand 12 states. [2020-07-20 13:02:20,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:02:20,771 INFO L93 Difference]: Finished difference Result 2646 states and 3887 transitions. [2020-07-20 13:02:20,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-20 13:02:20,771 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 175 [2020-07-20 13:02:20,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:02:20,785 INFO L225 Difference]: With dead ends: 2646 [2020-07-20 13:02:20,785 INFO L226 Difference]: Without dead ends: 1780 [2020-07-20 13:02:20,789 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 327 SyntacticMatches, 15 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=125, Invalid=255, Unknown=0, NotChecked=0, Total=380 [2020-07-20 13:02:20,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1780 states. [2020-07-20 13:02:20,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1780 to 1196. [2020-07-20 13:02:20,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1196 states. [2020-07-20 13:02:20,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1196 states to 1196 states and 1515 transitions. [2020-07-20 13:02:20,872 INFO L78 Accepts]: Start accepts. Automaton has 1196 states and 1515 transitions. Word has length 175 [2020-07-20 13:02:20,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:02:20,873 INFO L479 AbstractCegarLoop]: Abstraction has 1196 states and 1515 transitions. [2020-07-20 13:02:20,873 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-20 13:02:20,873 INFO L276 IsEmpty]: Start isEmpty. Operand 1196 states and 1515 transitions. [2020-07-20 13:02:20,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-07-20 13:02:20,876 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:02:20,877 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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] [2020-07-20 13:02:21,091 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:21,092 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:02:21,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:02:21,093 INFO L82 PathProgramCache]: Analyzing trace with hash -1055495760, now seen corresponding path program 1 times [2020-07-20 13:02:21,093 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:02:21,094 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2039437629] [2020-07-20 13:02:21,094 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:21,590 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 13:02:21,590 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:02:21,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 937 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 13:02:21,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:02:21,632 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 13:02:21,632 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:02:21,633 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2039437629] [2020-07-20 13:02:21,633 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:02:21,633 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 13:02:21,633 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680886685] [2020-07-20 13:02:21,634 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 13:02:21,634 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:02:21,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 13:02:21,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:02:21,635 INFO L87 Difference]: Start difference. First operand 1196 states and 1515 transitions. Second operand 3 states. [2020-07-20 13:02:21,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:02:21,793 INFO L93 Difference]: Finished difference Result 2257 states and 2892 transitions. [2020-07-20 13:02:21,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 13:02:21,794 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 160 [2020-07-20 13:02:21,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:02:21,801 INFO L225 Difference]: With dead ends: 2257 [2020-07-20 13:02:21,801 INFO L226 Difference]: Without dead ends: 1089 [2020-07-20 13:02:21,805 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:02:21,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1089 states. [2020-07-20 13:02:21,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1089 to 1054. [2020-07-20 13:02:21,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1054 states. [2020-07-20 13:02:21,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1054 states to 1054 states and 1257 transitions. [2020-07-20 13:02:21,873 INFO L78 Accepts]: Start accepts. Automaton has 1054 states and 1257 transitions. Word has length 160 [2020-07-20 13:02:21,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:02:21,873 INFO L479 AbstractCegarLoop]: Abstraction has 1054 states and 1257 transitions. [2020-07-20 13:02:21,873 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 13:02:21,873 INFO L276 IsEmpty]: Start isEmpty. Operand 1054 states and 1257 transitions. [2020-07-20 13:02:21,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-07-20 13:02:21,877 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:02:21,877 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:02:22,090 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:22,091 INFO L427 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:02:22,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:02:22,091 INFO L82 PathProgramCache]: Analyzing trace with hash -1897710765, now seen corresponding path program 1 times [2020-07-20 13:02:22,092 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:02:22,092 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [158495206] [2020-07-20 13:02:22,093 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:22,530 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 13:02:22,531 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:02:22,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 966 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-20 13:02:22,540 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:02:22,617 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-07-20 13:02:22,617 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:02:22,618 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [158495206] [2020-07-20 13:02:22,618 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:02:22,618 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-20 13:02:22,618 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110807145] [2020-07-20 13:02:22,619 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-20 13:02:22,619 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:02:22,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-20 13:02:22,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-20 13:02:22,619 INFO L87 Difference]: Start difference. First operand 1054 states and 1257 transitions. Second operand 8 states. [2020-07-20 13:02:23,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:02:23,116 INFO L93 Difference]: Finished difference Result 1792 states and 2148 transitions. [2020-07-20 13:02:23,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 13:02:23,117 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 173 [2020-07-20 13:02:23,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:02:23,118 INFO L225 Difference]: With dead ends: 1792 [2020-07-20 13:02:23,118 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 13:02:23,131 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 165 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-20 13:02:23,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 13:02:23,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 13:02:23,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 13:02:23,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 13:02:23,132 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 173 [2020-07-20 13:02:23,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:02:23,133 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 13:02:23,133 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-20 13:02:23,133 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 13:02:23,133 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 13:02:23,348 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:23,351 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 13:02:25,924 WARN L193 SmtUtils]: Spent 590.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 59 [2020-07-20 13:02:26,128 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 36 [2020-07-20 13:02:26,358 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 34 [2020-07-20 13:02:26,634 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 33 [2020-07-20 13:02:26,808 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 33 [2020-07-20 13:02:27,012 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 43 [2020-07-20 13:02:27,201 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 32 [2020-07-20 13:02:27,379 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 32 [2020-07-20 13:02:27,589 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 36 [2020-07-20 13:02:28,163 WARN L193 SmtUtils]: Spent 569.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 59 [2020-07-20 13:02:28,387 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 35 [2020-07-20 13:02:28,746 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 35 [2020-07-20 13:02:28,909 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 32 [2020-07-20 13:02:29,038 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 23 [2020-07-20 13:02:29,317 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 33 [2020-07-20 13:02:29,644 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 43 [2020-07-20 13:02:29,795 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 32 [2020-07-20 13:02:29,991 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 33 [2020-07-20 13:02:30,257 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 32 [2020-07-20 13:02:30,475 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 39 [2020-07-20 13:02:31,275 WARN L193 SmtUtils]: Spent 757.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 61 [2020-07-20 13:02:31,469 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 34 [2020-07-20 13:02:31,787 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 40 [2020-07-20 13:02:32,082 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 40 [2020-07-20 13:02:32,537 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 40 [2020-07-20 13:02:32,662 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 22 [2020-07-20 13:02:32,786 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 32 [2020-07-20 13:02:33,063 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 35 [2020-07-20 13:02:33,297 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 33 [2020-07-20 13:02:33,445 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 23 [2020-07-20 13:02:33,731 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 51 [2020-07-20 13:02:33,736 INFO L268 CegarLoopResult]: For program point L579-2(lines 579 600) no Hoare annotation was computed. [2020-07-20 13:02:33,736 INFO L268 CegarLoopResult]: For program point L601(lines 578 602) no Hoare annotation was computed. [2020-07-20 13:02:33,736 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeFINAL(lines 554 609) no Hoare annotation was computed. [2020-07-20 13:02:33,737 INFO L268 CegarLoopResult]: For program point L585(lines 585 589) no Hoare annotation was computed. [2020-07-20 13:02:33,737 INFO L268 CegarLoopResult]: For program point L585-1(lines 585 589) no Hoare annotation was computed. [2020-07-20 13:02:33,737 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeEXIT(lines 554 609) no Hoare annotation was computed. [2020-07-20 13:02:33,737 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-20 13:02:33,737 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeENTRY(lines 554 609) no Hoare annotation was computed. [2020-07-20 13:02:33,738 INFO L268 CegarLoopResult]: For program point L642-1(lines 642 646) no Hoare annotation was computed. [2020-07-20 13:02:33,738 INFO L268 CegarLoopResult]: For program point L637(line 637) no Hoare annotation was computed. [2020-07-20 13:02:33,738 INFO L268 CegarLoopResult]: For program point L636-2(lines 636 661) no Hoare annotation was computed. [2020-07-20 13:02:33,738 INFO L268 CegarLoopResult]: For program point L662(lines 635 663) no Hoare annotation was computed. [2020-07-20 13:02:33,738 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetFINAL(lines 610 669) no Hoare annotation was computed. [2020-07-20 13:02:33,738 INFO L268 CegarLoopResult]: For program point L655(line 655) no Hoare annotation was computed. [2020-07-20 13:02:33,738 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetENTRY(lines 610 669) no Hoare annotation was computed. [2020-07-20 13:02:33,739 INFO L268 CegarLoopResult]: For program point L655-1(line 655) no Hoare annotation was computed. [2020-07-20 13:02:33,739 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetEXIT(lines 610 669) no Hoare annotation was computed. [2020-07-20 13:02:33,739 INFO L268 CegarLoopResult]: For program point L642(lines 642 646) no Hoare annotation was computed. [2020-07-20 13:02:33,739 INFO L271 CegarLoopResult]: At program point select_helpersFINAL(lines 61 67) the Hoare annotation is: true [2020-07-20 13:02:33,739 INFO L268 CegarLoopResult]: For program point select_helpersEXIT(lines 61 67) no Hoare annotation was computed. [2020-07-20 13:02:33,739 INFO L268 CegarLoopResult]: For program point valid_productEXIT(lines 68 76) no Hoare annotation was computed. [2020-07-20 13:02:33,739 INFO L271 CegarLoopResult]: At program point valid_productENTRY(lines 68 76) the Hoare annotation is: true [2020-07-20 13:02:33,740 INFO L268 CegarLoopResult]: For program point valid_productFINAL(lines 68 76) no Hoare annotation was computed. [2020-07-20 13:02:33,740 INFO L264 CegarLoopResult]: At program point L993(line 993) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (<= ~waterLevel~0 |old(~waterLevel~0)|) (= 0 ~pumpRunning~0) (<= 1 ~systemActive~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-20 13:02:33,740 INFO L264 CegarLoopResult]: At program point L993-1(line 993) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (<= ~waterLevel~0 |old(~waterLevel~0)|) (= 0 ~pumpRunning~0) (<= 1 ~systemActive~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-20 13:02:33,740 INFO L268 CegarLoopResult]: For program point L991(lines 991 998) no Hoare annotation was computed. [2020-07-20 13:02:33,740 INFO L268 CegarLoopResult]: For program point L991-1(lines 991 998) no Hoare annotation was computed. [2020-07-20 13:02:33,740 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 981 1003) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (<= ~waterLevel~0 |old(~waterLevel~0)|) (= 0 ~pumpRunning~0) (<= 1 ~systemActive~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-20 13:02:33,741 INFO L268 CegarLoopResult]: For program point L989(line 989) no Hoare annotation was computed. [2020-07-20 13:02:33,741 INFO L264 CegarLoopResult]: At program point L988(line 988) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (<= ~waterLevel~0 |old(~waterLevel~0)|) (= 0 ~pumpRunning~0) (<= 1 ~systemActive~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-20 13:02:33,741 INFO L264 CegarLoopResult]: At program point L987(line 987) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (<= ~waterLevel~0 |old(~waterLevel~0)|) (= 0 ~pumpRunning~0) (<= 1 ~systemActive~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-20 13:02:33,741 INFO L264 CegarLoopResult]: At program point L987-1(line 987) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (<= ~waterLevel~0 |old(~waterLevel~0)|) (= 0 ~pumpRunning~0) (<= 1 ~systemActive~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-20 13:02:33,741 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 981 1003) no Hoare annotation was computed. [2020-07-20 13:02:33,741 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 981 1003) no Hoare annotation was computed. [2020-07-20 13:02:33,741 INFO L268 CegarLoopResult]: For program point Specification2EXIT(lines 939 962) no Hoare annotation was computed. [2020-07-20 13:02:33,741 INFO L268 CegarLoopResult]: For program point L957(line 957) no Hoare annotation was computed. [2020-07-20 13:02:33,741 INFO L268 CegarLoopResult]: For program point Specification2ENTRY(lines 939 962) no Hoare annotation was computed. [2020-07-20 13:02:33,742 INFO L268 CegarLoopResult]: For program point L956(line 956) no Hoare annotation was computed. [2020-07-20 13:02:33,742 INFO L268 CegarLoopResult]: For program point Specification2FINAL(lines 939 962) no Hoare annotation was computed. [2020-07-20 13:02:33,742 INFO L268 CegarLoopResult]: For program point L955(line 955) no Hoare annotation was computed. [2020-07-20 13:02:33,742 INFO L268 CegarLoopResult]: For program point L954(line 954) no Hoare annotation was computed. [2020-07-20 13:02:33,742 INFO L268 CegarLoopResult]: For program point L953(line 953) no Hoare annotation was computed. [2020-07-20 13:02:33,742 INFO L268 CegarLoopResult]: For program point L952(line 952) no Hoare annotation was computed. [2020-07-20 13:02:33,742 INFO L268 CegarLoopResult]: For program point L951(line 951) no Hoare annotation was computed. [2020-07-20 13:02:33,742 INFO L268 CegarLoopResult]: For program point L950(line 950) no Hoare annotation was computed. [2020-07-20 13:02:33,742 INFO L268 CegarLoopResult]: For program point L949(line 949) no Hoare annotation was computed. [2020-07-20 13:02:33,743 INFO L268 CegarLoopResult]: For program point L948(line 948) no Hoare annotation was computed. [2020-07-20 13:02:33,743 INFO L268 CegarLoopResult]: For program point L947(line 947) no Hoare annotation was computed. [2020-07-20 13:02:33,743 INFO L268 CegarLoopResult]: For program point L946(line 946) no Hoare annotation was computed. [2020-07-20 13:02:33,743 INFO L268 CegarLoopResult]: For program point L945(line 945) no Hoare annotation was computed. [2020-07-20 13:02:33,743 INFO L268 CegarLoopResult]: For program point L944(line 944) no Hoare annotation was computed. [2020-07-20 13:02:33,743 INFO L268 CegarLoopResult]: For program point stopSystemEXIT(lines 486 500) no Hoare annotation was computed. [2020-07-20 13:02:33,743 INFO L264 CegarLoopResult]: At program point L492(line 492) the Hoare annotation is: (and (or (not (= 0 ~methAndRunningLastTime~0)) (not (= 0 |old(~pumpRunning~0)|))) (or (not (<= 1 |old(~systemActive~0)|)) (<= 1 ~systemActive~0))) [2020-07-20 13:02:33,743 INFO L268 CegarLoopResult]: For program point L490(lines 490 496) no Hoare annotation was computed. [2020-07-20 13:02:33,743 INFO L264 CegarLoopResult]: At program point stopSystemENTRY(lines 486 500) the Hoare annotation is: (let ((.cse0 (not (= 0 ~methAndRunningLastTime~0))) (.cse1 (not (= 0 |old(~pumpRunning~0)|)))) (and (or .cse0 (= 0 ~systemActive~0) .cse1 (not (= 0 |old(~systemActive~0)|))) (or .cse0 .cse1 (= 0 ~pumpRunning~0)) (or (not (<= 1 |old(~systemActive~0)|)) (<= 1 ~systemActive~0)))) [2020-07-20 13:02:33,743 INFO L268 CegarLoopResult]: For program point stopSystemFINAL(lines 486 500) no Hoare annotation was computed. [2020-07-20 13:02:33,743 INFO L268 CegarLoopResult]: For program point isPumpRunningEXIT(lines 403 411) no Hoare annotation was computed. [2020-07-20 13:02:33,744 INFO L271 CegarLoopResult]: At program point isPumpRunningENTRY(lines 403 411) the Hoare annotation is: true [2020-07-20 13:02:33,744 INFO L268 CegarLoopResult]: For program point isPumpRunningFINAL(lines 403 411) no Hoare annotation was computed. [2020-07-20 13:02:33,744 INFO L268 CegarLoopResult]: For program point L476(lines 476 480) no Hoare annotation was computed. [2020-07-20 13:02:33,744 INFO L271 CegarLoopResult]: At program point L474(line 474) the Hoare annotation is: true [2020-07-20 13:02:33,744 INFO L268 CegarLoopResult]: For program point L476-2(lines 476 480) no Hoare annotation was computed. [2020-07-20 13:02:33,744 INFO L271 CegarLoopResult]: At program point isLowWaterLevelENTRY(lines 467 485) the Hoare annotation is: true [2020-07-20 13:02:33,744 INFO L268 CegarLoopResult]: For program point L474-1(line 474) no Hoare annotation was computed. [2020-07-20 13:02:33,744 INFO L268 CegarLoopResult]: For program point isLowWaterLevelEXIT(lines 467 485) no Hoare annotation was computed. [2020-07-20 13:02:33,744 INFO L268 CegarLoopResult]: For program point isLowWaterLevelFINAL(lines 467 485) no Hoare annotation was computed. [2020-07-20 13:02:33,744 INFO L268 CegarLoopResult]: For program point L419-2(lines 419 427) no Hoare annotation was computed. [2020-07-20 13:02:33,744 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-20 13:02:33,744 INFO L268 CegarLoopResult]: For program point L442-1(line 442) no Hoare annotation was computed. [2020-07-20 13:02:33,745 INFO L268 CegarLoopResult]: For program point L431(lines 431 439) no Hoare annotation was computed. [2020-07-20 13:02:33,745 INFO L268 CegarLoopResult]: For program point printPumpFINAL(lines 412 447) no Hoare annotation was computed. [2020-07-20 13:02:33,745 INFO L268 CegarLoopResult]: For program point L431-2(lines 431 439) no Hoare annotation was computed. [2020-07-20 13:02:33,745 INFO L268 CegarLoopResult]: For program point printPumpENTRY(lines 412 447) no Hoare annotation was computed. [2020-07-20 13:02:33,745 INFO L268 CegarLoopResult]: For program point L419(lines 419 427) no Hoare annotation was computed. [2020-07-20 13:02:33,745 INFO L268 CegarLoopResult]: For program point printPumpEXIT(lines 412 447) no Hoare annotation was computed. [2020-07-20 13:02:33,745 INFO L268 CegarLoopResult]: For program point select_featuresEXIT(lines 54 60) no Hoare annotation was computed. [2020-07-20 13:02:33,745 INFO L271 CegarLoopResult]: At program point select_featuresFINAL(lines 54 60) the Hoare annotation is: true [2020-07-20 13:02:33,745 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setENTRY(lines 508 553) no Hoare annotation was computed. [2020-07-20 13:02:33,745 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setEXIT(lines 508 553) no Hoare annotation was computed. [2020-07-20 13:02:33,745 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setFINAL(lines 508 553) no Hoare annotation was computed. [2020-07-20 13:02:33,745 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeFINAL(lines 821 866) no Hoare annotation was computed. [2020-07-20 13:02:33,746 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeENTRY(lines 821 866) no Hoare annotation was computed. [2020-07-20 13:02:33,746 INFO L268 CegarLoopResult]: For program point L841(lines 841 848) no Hoare annotation was computed. [2020-07-20 13:02:33,746 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeEXIT(lines 821 866) no Hoare annotation was computed. [2020-07-20 13:02:33,746 INFO L268 CegarLoopResult]: For program point L835(lines 835 855) no Hoare annotation was computed. [2020-07-20 13:02:33,746 INFO L268 CegarLoopResult]: For program point L835-1(lines 835 855) no Hoare annotation was computed. [2020-07-20 13:02:33,746 INFO L264 CegarLoopResult]: At program point runTestENTRY(lines 970 980) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (<= ~waterLevel~0 |old(~waterLevel~0)|) (= 0 ~pumpRunning~0) (<= 1 ~systemActive~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-20 13:02:33,746 INFO L264 CegarLoopResult]: At program point L975(line 975) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (<= ~waterLevel~0 |old(~waterLevel~0)|) (= 0 ~pumpRunning~0) (<= 1 ~systemActive~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-20 13:02:33,747 INFO L268 CegarLoopResult]: For program point runTestEXIT(lines 970 980) no Hoare annotation was computed. [2020-07-20 13:02:33,747 INFO L268 CegarLoopResult]: For program point runTestFINAL(lines 970 980) no Hoare annotation was computed. [2020-07-20 13:02:33,747 INFO L271 CegarLoopResult]: At program point isMethaneAlarmENTRY(lines 392 402) the Hoare annotation is: true [2020-07-20 13:02:33,747 INFO L271 CegarLoopResult]: At program point L397(line 397) the Hoare annotation is: true [2020-07-20 13:02:33,747 INFO L268 CegarLoopResult]: For program point L397-1(line 397) no Hoare annotation was computed. [2020-07-20 13:02:33,747 INFO L268 CegarLoopResult]: For program point isMethaneAlarmEXIT(lines 392 402) no Hoare annotation was computed. [2020-07-20 13:02:33,747 INFO L268 CegarLoopResult]: For program point isMethaneAlarmFINAL(lines 392 402) no Hoare annotation was computed. [2020-07-20 13:02:33,748 INFO L264 CegarLoopResult]: At program point deactivatePumpENTRY(lines 384 391) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (<= 1 |old(~pumpRunning~0)|))) (.cse2 (not (<= ~waterLevel~0 1))) (.cse3 (<= 1 ~pumpRunning~0))) (and (or .cse0 .cse1 (not (= 0 ~methaneLevelCritical~0)) .cse2 .cse3) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1 .cse2 .cse3))) [2020-07-20 13:02:33,748 INFO L268 CegarLoopResult]: For program point deactivatePumpEXIT(lines 384 391) no Hoare annotation was computed. [2020-07-20 13:02:33,748 INFO L268 CegarLoopResult]: For program point deactivatePumpFINAL(lines 384 391) no Hoare annotation was computed. [2020-07-20 13:02:33,748 INFO L268 CegarLoopResult]: For program point L169(lines 169 175) no Hoare annotation was computed. [2020-07-20 13:02:33,748 INFO L268 CegarLoopResult]: For program point isHighWaterSensorDryEXIT(lines 165 178) no Hoare annotation was computed. [2020-07-20 13:02:33,748 INFO L271 CegarLoopResult]: At program point isHighWaterSensorDryENTRY(lines 165 178) the Hoare annotation is: true [2020-07-20 13:02:33,748 INFO L268 CegarLoopResult]: For program point isHighWaterSensorDryFINAL(lines 165 178) no Hoare annotation was computed. [2020-07-20 13:02:33,748 INFO L268 CegarLoopResult]: For program point processEnvironmentEXIT(lines 351 375) no Hoare annotation was computed. [2020-07-20 13:02:33,749 INFO L264 CegarLoopResult]: At program point processEnvironmentENTRY(lines 351 375) the Hoare annotation is: (let ((.cse1 (not (<= 1 ~methaneLevelCritical~0))) (.cse5 (not (<= 1 |old(~pumpRunning~0)|))) (.cse7 (not (<= ~waterLevel~0 1))) (.cse8 (<= 1 ~pumpRunning~0)) (.cse0 (not (<= 1 ~systemActive~0))) (.cse2 (not (<= ~waterLevel~0 2))) (.cse3 (not (= 0 |old(~pumpRunning~0)|))) (.cse6 (not (= 0 ~methaneLevelCritical~0))) (.cse4 (= 0 ~pumpRunning~0))) (and (or (not (= 0 ~methAndRunningLastTime~0)) .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse5 .cse6 .cse7 .cse8) (or .cse0 .cse1 .cse5 .cse7 .cse8) (or .cse0 .cse2 .cse3 .cse6 .cse4))) [2020-07-20 13:02:33,749 INFO L264 CegarLoopResult]: At program point L370(line 370) the Hoare annotation is: (let ((.cse2 (not (<= ~waterLevel~0 2))) (.cse3 (not (= 0 |old(~pumpRunning~0)|))) (.cse4 (= 0 ~pumpRunning~0)) (.cse5 (not (= 0 ~methaneLevelCritical~0))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (<= 1 ~methaneLevelCritical~0))) (.cse6 (not (<= 1 |old(~pumpRunning~0)|))) (.cse7 (not (<= ~waterLevel~0 1)))) (and (or (not (= 0 ~methAndRunningLastTime~0)) .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse2 .cse3 .cse5 .cse4) (or .cse0 .cse6 .cse5 .cse7) (or .cse0 .cse1 .cse6 .cse7))) [2020-07-20 13:02:33,749 INFO L268 CegarLoopResult]: For program point L370-1(lines 351 375) no Hoare annotation was computed. [2020-07-20 13:02:33,749 INFO L264 CegarLoopResult]: At program point L365(line 365) the Hoare annotation is: (let ((.cse2 (not (<= ~waterLevel~0 2))) (.cse3 (not (= 0 |old(~pumpRunning~0)|))) (.cse5 (not (= 0 ~methaneLevelCritical~0))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (<= 1 ~methaneLevelCritical~0))) (.cse4 (not (<= 1 |old(~pumpRunning~0)|))) (.cse6 (not (<= ~waterLevel~0 1)))) (and (or (not (= 0 ~methAndRunningLastTime~0)) .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse4 .cse5 .cse6 (<= 1 ~pumpRunning~0)) (or .cse0 .cse2 .cse3 .cse5) (or .cse0 .cse1 .cse4 .cse6))) [2020-07-20 13:02:33,749 INFO L264 CegarLoopResult]: At program point L361(line 361) the Hoare annotation is: (let ((.cse2 (not (<= ~waterLevel~0 2))) (.cse3 (not (= 0 |old(~pumpRunning~0)|))) (.cse5 (not (= 0 ~methaneLevelCritical~0))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (<= 1 ~methaneLevelCritical~0))) (.cse4 (not (<= 1 |old(~pumpRunning~0)|))) (.cse7 (<= 1 ~pumpRunning~0)) (.cse6 (not (<= ~waterLevel~0 1)))) (and (or (not (= 0 ~methAndRunningLastTime~0)) .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse4 .cse5 .cse6 .cse7) (or .cse0 .cse2 .cse3 .cse5) (or .cse0 .cse1 .cse4 (and (<= ~methaneLevelCritical~0 processEnvironment_~tmp~3) .cse7) .cse6))) [2020-07-20 13:02:33,749 INFO L268 CegarLoopResult]: For program point L359(lines 359 367) no Hoare annotation was computed. [2020-07-20 13:02:33,750 INFO L264 CegarLoopResult]: At program point L357(line 357) the Hoare annotation is: (let ((.cse1 (not (<= 1 ~methaneLevelCritical~0))) (.cse4 (not (<= 1 |old(~pumpRunning~0)|))) (.cse6 (not (<= ~waterLevel~0 1))) (.cse7 (<= 1 ~pumpRunning~0)) (.cse0 (not (<= 1 ~systemActive~0))) (.cse2 (not (<= ~waterLevel~0 2))) (.cse3 (not (= 0 |old(~pumpRunning~0)|))) (.cse5 (not (= 0 ~methaneLevelCritical~0)))) (and (or (not (= 0 ~methAndRunningLastTime~0)) .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse4 .cse5 .cse6 .cse7) (or .cse0 .cse1 .cse4 .cse6 .cse7) (or .cse0 .cse2 .cse3 .cse5))) [2020-07-20 13:02:33,750 INFO L268 CegarLoopResult]: For program point L357-1(line 357) no Hoare annotation was computed. [2020-07-20 13:02:33,750 INFO L268 CegarLoopResult]: For program point L355(lines 355 372) no Hoare annotation was computed. [2020-07-20 13:02:33,750 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__baseEXIT(lines 291 297) no Hoare annotation was computed. [2020-07-20 13:02:33,750 INFO L271 CegarLoopResult]: At program point processEnvironment__wrappee__baseFINAL(lines 291 297) the Hoare annotation is: true [2020-07-20 13:02:33,750 INFO L264 CegarLoopResult]: At program point testENTRY(lines 192 257) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (<= ~waterLevel~0 |old(~waterLevel~0)|) (= 0 ~pumpRunning~0) (<= 1 ~systemActive~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-20 13:02:33,750 INFO L264 CegarLoopResult]: At program point L250(lines 201 251) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-20 13:02:33,751 INFO L268 CegarLoopResult]: For program point testFINAL(lines 192 257) no Hoare annotation was computed. [2020-07-20 13:02:33,751 INFO L264 CegarLoopResult]: At program point L240(line 240) the Hoare annotation is: (let ((.cse0 (<= test_~splverifierCounter~0 0))) (or (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methAndRunningLastTime~0) (= 0 ~pumpRunning~0) .cse0) (not (<= 1 |old(~systemActive~0)|)) (and .cse0 (<= 1 ~systemActive~0)))) [2020-07-20 13:02:33,751 INFO L268 CegarLoopResult]: For program point L238(lines 238 244) no Hoare annotation was computed. [2020-07-20 13:02:33,751 INFO L264 CegarLoopResult]: At program point L238-1(lines 232 245) the Hoare annotation is: (let ((.cse1 (<= 1 ~methaneLevelCritical~0)) (.cse6 (<= 1 ~pumpRunning~0)) (.cse7 (= 0 ~methaneLevelCritical~0)) (.cse0 (= 0 ~methAndRunningLastTime~0)) (.cse2 (<= ~waterLevel~0 2)) (.cse5 (<= 1 ~systemActive~0)) (.cse3 (= 0 ~pumpRunning~0)) (.cse4 (<= test_~splverifierCounter~0 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (not (<= |old(~waterLevel~0)| 1)) (and .cse0 .cse1 .cse2 .cse4 .cse5 .cse6) (and .cse7 .cse2 .cse4 .cse5 .cse6) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (< 1 ~waterLevel~0) .cse1 .cse2 .cse4 .cse5 .cse6) (and .cse7 .cse0 .cse2 .cse3 .cse4 .cse5) (not (<= 1 |old(~systemActive~0)|)) (and (= 0 ~systemActive~0) .cse3 .cse4))) [2020-07-20 13:02:33,751 INFO L268 CegarLoopResult]: For program point L203(lines 202 249) no Hoare annotation was computed. [2020-07-20 13:02:33,751 INFO L268 CegarLoopResult]: For program point L232(lines 232 245) no Hoare annotation was computed. [2020-07-20 13:02:33,751 INFO L264 CegarLoopResult]: At program point L224(line 224) the Hoare annotation is: (let ((.cse1 (<= 1 ~methaneLevelCritical~0)) (.cse3 (= 0 ~pumpRunning~0)) (.cse7 (= 0 ~methaneLevelCritical~0)) (.cse0 (= 0 ~methAndRunningLastTime~0)) (.cse2 (<= ~waterLevel~0 2)) (.cse4 (<= test_~splverifierCounter~0 0)) (.cse5 (<= 1 ~systemActive~0)) (.cse6 (<= 1 ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (not (<= |old(~waterLevel~0)| 1)) (and .cse0 (= 0 ~systemActive~0) .cse3 .cse4) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (< 1 ~waterLevel~0) .cse1 .cse2 .cse4 .cse5 .cse6) (and .cse7 .cse0 .cse2 .cse3 .cse4 .cse5) (and .cse7 .cse0 .cse2 .cse4 .cse5 .cse6) (not (<= 1 |old(~systemActive~0)|)))) [2020-07-20 13:02:33,752 INFO L268 CegarLoopResult]: For program point L222(lines 222 228) no Hoare annotation was computed. [2020-07-20 13:02:33,752 INFO L268 CegarLoopResult]: For program point L222-1(lines 222 228) no Hoare annotation was computed. [2020-07-20 13:02:33,752 INFO L264 CegarLoopResult]: At program point L247(lines 202 249) the Hoare annotation is: (let ((.cse1 (<= 1 ~methaneLevelCritical~0)) (.cse3 (= 0 ~pumpRunning~0)) (.cse7 (= 0 ~methaneLevelCritical~0)) (.cse0 (= 0 ~methAndRunningLastTime~0)) (.cse2 (<= ~waterLevel~0 2)) (.cse4 (<= test_~splverifierCounter~0 0)) (.cse5 (<= 1 ~systemActive~0)) (.cse6 (<= 1 ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (not (<= |old(~waterLevel~0)| 1)) (and .cse0 (= 0 ~systemActive~0) .cse3 .cse4) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (< 1 ~waterLevel~0) .cse1 .cse2 .cse4 .cse5 .cse6) (and .cse7 .cse0 .cse2 .cse3 .cse4 .cse5) (and .cse7 .cse0 .cse2 .cse4 .cse5 .cse6) (not (<= 1 |old(~systemActive~0)|)))) [2020-07-20 13:02:33,752 INFO L264 CegarLoopResult]: At program point L214(line 214) the Hoare annotation is: (let ((.cse1 (<= 1 ~methaneLevelCritical~0)) (.cse3 (= 0 ~pumpRunning~0)) (.cse7 (= 0 ~methaneLevelCritical~0)) (.cse0 (= 0 ~methAndRunningLastTime~0)) (.cse2 (<= ~waterLevel~0 2)) (.cse4 (<= test_~splverifierCounter~0 0)) (.cse5 (<= 1 ~systemActive~0)) (.cse6 (<= 1 ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (not (<= |old(~waterLevel~0)| 1)) (and .cse0 (= 0 ~systemActive~0) .cse3 .cse4) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (< 1 ~waterLevel~0) .cse1 .cse2 .cse4 .cse5 .cse6) (and .cse7 .cse0 .cse2 .cse3 .cse4 .cse5) (and .cse7 .cse0 .cse2 .cse4 .cse5 .cse6) (not (<= 1 |old(~systemActive~0)|)))) [2020-07-20 13:02:33,752 INFO L268 CegarLoopResult]: For program point L212(lines 212 218) no Hoare annotation was computed. [2020-07-20 13:02:33,752 INFO L268 CegarLoopResult]: For program point L212-1(lines 212 218) no Hoare annotation was computed. [2020-07-20 13:02:33,752 INFO L268 CegarLoopResult]: For program point L204(lines 204 208) no Hoare annotation was computed. [2020-07-20 13:02:33,753 INFO L268 CegarLoopResult]: For program point testEXIT(lines 192 257) no Hoare annotation was computed. [2020-07-20 13:02:33,753 INFO L268 CegarLoopResult]: For program point L795(lines 795 802) no Hoare annotation was computed. [2020-07-20 13:02:33,753 INFO L268 CegarLoopResult]: For program point __utac__get_this_argENTRY(lines 775 820) no Hoare annotation was computed. [2020-07-20 13:02:33,753 INFO L268 CegarLoopResult]: For program point L789(lines 789 809) no Hoare annotation was computed. [2020-07-20 13:02:33,753 INFO L268 CegarLoopResult]: For program point __utac__get_this_argEXIT(lines 775 820) no Hoare annotation was computed. [2020-07-20 13:02:33,753 INFO L268 CegarLoopResult]: For program point L789-1(lines 789 809) no Hoare annotation was computed. [2020-07-20 13:02:33,753 INFO L268 CegarLoopResult]: For program point __utac__get_this_argFINAL(lines 775 820) no Hoare annotation was computed. [2020-07-20 13:02:33,753 INFO L268 CegarLoopResult]: For program point isLowWaterSensorDryFINAL(lines 179 187) no Hoare annotation was computed. [2020-07-20 13:02:33,753 INFO L271 CegarLoopResult]: At program point isLowWaterSensorDryENTRY(lines 179 187) the Hoare annotation is: true [2020-07-20 13:02:33,753 INFO L268 CegarLoopResult]: For program point isLowWaterSensorDryEXIT(lines 179 187) no Hoare annotation was computed. [2020-07-20 13:02:33,754 INFO L264 CegarLoopResult]: At program point L893(line 893) the Hoare annotation is: (let ((.cse1 (not (<= 1 ~methaneLevelCritical~0))) (.cse4 (not (<= 1 ~pumpRunning~0))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse2 (not (<= ~waterLevel~0 2))) (.cse5 (not (= 0 ~methaneLevelCritical~0))) (.cse3 (not (= 0 ~pumpRunning~0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse2 (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (< 1 ~waterLevel~0)) .cse4) (or .cse0 .cse2 .cse5 .cse4) (or (not (= 0 ~systemActive~0)) .cse3) (or .cse0 .cse2 .cse5 .cse3))) [2020-07-20 13:02:33,754 INFO L268 CegarLoopResult]: For program point L891(lines 891 897) no Hoare annotation was computed. [2020-07-20 13:02:33,754 INFO L268 CegarLoopResult]: For program point L890(lines 890 900) no Hoare annotation was computed. [2020-07-20 13:02:33,754 INFO L264 CegarLoopResult]: At program point L888(line 888) the Hoare annotation is: (let ((.cse4 (not (<= 1 ~pumpRunning~0))) (.cse2 (not (<= 1 ~systemActive~0))) (.cse3 (not (<= ~waterLevel~0 2))) (.cse0 (not (= 0 ~methaneLevelCritical~0))) (.cse1 (not (= 0 ~pumpRunning~0)))) (and (or (not (= 0 ~systemActive~0)) .cse0 .cse1) (or .cse2 .cse3 .cse0 .cse4) (or .cse2 (= 0 ~methAndRunningLastTime~0) (not (<= 1 ~methaneLevelCritical~0)) .cse3 (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (< 1 ~waterLevel~0)) .cse4) (or .cse2 .cse3 .cse0 .cse1))) [2020-07-20 13:02:33,754 INFO L268 CegarLoopResult]: For program point L888-1(line 888) no Hoare annotation was computed. [2020-07-20 13:02:33,754 INFO L268 CegarLoopResult]: For program point L886(lines 886 903) no Hoare annotation was computed. [2020-07-20 13:02:33,754 INFO L268 CegarLoopResult]: For program point L886-1(lines 878 906) no Hoare annotation was computed. [2020-07-20 13:02:33,755 INFO L264 CegarLoopResult]: At program point L884(line 884) the Hoare annotation is: (or (not (<= 1 ~systemActive~0)) (= 0 ~methAndRunningLastTime~0) (not (<= 1 ~methaneLevelCritical~0)) (not (<= ~waterLevel~0 2)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (< 1 ~waterLevel~0)) (not (<= 1 ~pumpRunning~0))) [2020-07-20 13:02:33,755 INFO L268 CegarLoopResult]: For program point L884-1(line 884) no Hoare annotation was computed. [2020-07-20 13:02:33,755 INFO L264 CegarLoopResult]: At program point __utac_acc__Specification2_spec__2ENTRY(lines 878 906) the Hoare annotation is: (or (not (<= 1 ~systemActive~0)) (= 0 ~methAndRunningLastTime~0) (not (<= 1 ~methaneLevelCritical~0)) (not (<= ~waterLevel~0 2)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (< 1 ~waterLevel~0)) (not (<= 1 ~pumpRunning~0))) [2020-07-20 13:02:33,755 INFO L268 CegarLoopResult]: For program point __utac_acc__Specification2_spec__2EXIT(lines 878 906) no Hoare annotation was computed. [2020-07-20 13:02:33,755 INFO L268 CegarLoopResult]: For program point L141(lines 141 149) no Hoare annotation was computed. [2020-07-20 13:02:33,755 INFO L268 CegarLoopResult]: For program point L141-2(lines 141 149) no Hoare annotation was computed. [2020-07-20 13:02:33,755 INFO L268 CegarLoopResult]: For program point printEnvironmentEXIT(lines 133 155) no Hoare annotation was computed. [2020-07-20 13:02:33,755 INFO L268 CegarLoopResult]: For program point printEnvironmentENTRY(lines 133 155) no Hoare annotation was computed. [2020-07-20 13:02:33,755 INFO L268 CegarLoopResult]: For program point printEnvironmentFINAL(lines 133 155) no Hoare annotation was computed. [2020-07-20 13:02:33,756 INFO L264 CegarLoopResult]: At program point __utac_acc__Specification2_spec__1ENTRY(lines 870 877) the Hoare annotation is: (or (not (<= 1 ~systemActive~0)) (= 0 ~methAndRunningLastTime~0) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 ~methaneLevelCritical~0)) (not (<= ~waterLevel~0 1)) (not (= 0 ~pumpRunning~0))) [2020-07-20 13:02:33,756 INFO L268 CegarLoopResult]: For program point __utac_acc__Specification2_spec__1FINAL(lines 870 877) no Hoare annotation was computed. [2020-07-20 13:02:33,756 INFO L268 CegarLoopResult]: For program point __utac_acc__Specification2_spec__1EXIT(lines 870 877) no Hoare annotation was computed. [2020-07-20 13:02:33,756 INFO L268 CegarLoopResult]: For program point select_oneENTRY(lines 44 53) no Hoare annotation was computed. [2020-07-20 13:02:33,756 INFO L268 CegarLoopResult]: For program point select_oneFINAL(lines 44 53) no Hoare annotation was computed. [2020-07-20 13:02:33,756 INFO L268 CegarLoopResult]: For program point select_oneEXIT(lines 44 53) no Hoare annotation was computed. [2020-07-20 13:02:33,756 INFO L268 CegarLoopResult]: For program point L737(line 737) no Hoare annotation was computed. [2020-07-20 13:02:33,756 INFO L268 CegarLoopResult]: For program point L737-1(line 737) no Hoare annotation was computed. [2020-07-20 13:02:33,756 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtENTRY(lines 672 774) no Hoare annotation was computed. [2020-07-20 13:02:33,757 INFO L268 CegarLoopResult]: For program point L696(lines 696 700) no Hoare annotation was computed. [2020-07-20 13:02:33,757 INFO L268 CegarLoopResult]: For program point L760(lines 760 771) no Hoare annotation was computed. [2020-07-20 13:02:33,757 INFO L268 CegarLoopResult]: For program point L723(lines 723 727) no Hoare annotation was computed. [2020-07-20 13:02:33,757 INFO L268 CegarLoopResult]: For program point L721-2(lines 721 741) no Hoare annotation was computed. [2020-07-20 13:02:33,757 INFO L268 CegarLoopResult]: For program point L742(lines 720 743) no Hoare annotation was computed. [2020-07-20 13:02:33,757 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtFINAL(lines 672 774) no Hoare annotation was computed. [2020-07-20 13:02:33,757 INFO L268 CegarLoopResult]: For program point L701(lines 701 717) no Hoare annotation was computed. [2020-07-20 13:02:33,757 INFO L268 CegarLoopResult]: For program point L761(lines 761 768) no Hoare annotation was computed. [2020-07-20 13:02:33,757 INFO L268 CegarLoopResult]: For program point L722(lines 721 741) no Hoare annotation was computed. [2020-07-20 13:02:33,758 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtEXIT(lines 672 774) no Hoare annotation was computed. [2020-07-20 13:02:33,758 INFO L268 CegarLoopResult]: For program point L753(line 753) no Hoare annotation was computed. [2020-07-20 13:02:33,758 INFO L268 CegarLoopResult]: For program point L753-1(line 753) no Hoare annotation was computed. [2020-07-20 13:02:33,758 INFO L268 CegarLoopResult]: For program point L718(lines 718 759) no Hoare annotation was computed. [2020-07-20 13:02:33,758 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 13:02:33,758 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (<= ~waterLevel~0 |old(~waterLevel~0)|) [2020-07-20 13:02:33,758 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 13:02:33,758 INFO L268 CegarLoopResult]: For program point activatePumpFINAL(lines 376 383) no Hoare annotation was computed. [2020-07-20 13:02:33,758 INFO L268 CegarLoopResult]: For program point activatePumpEXIT(lines 376 383) no Hoare annotation was computed. [2020-07-20 13:02:33,759 INFO L264 CegarLoopResult]: At program point activatePumpENTRY(lines 376 383) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (<= ~waterLevel~0 2))) (.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (not (< 1 ~waterLevel~0))) (.cse4 (= 0 ~pumpRunning~0))) (and (or (not (= 0 ~methAndRunningLastTime~0)) .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse1 .cse2 (not (= 0 ~methaneLevelCritical~0)) .cse3 .cse4))) [2020-07-20 13:02:33,759 INFO L268 CegarLoopResult]: For program point getWaterLevelENTRY(lines 156 164) no Hoare annotation was computed. [2020-07-20 13:02:33,759 INFO L268 CegarLoopResult]: For program point getWaterLevelFINAL(lines 156 164) no Hoare annotation was computed. [2020-07-20 13:02:33,759 INFO L268 CegarLoopResult]: For program point getWaterLevelEXIT(lines 156 164) no Hoare annotation was computed. [2020-07-20 13:02:33,759 INFO L268 CegarLoopResult]: For program point isHighWaterLevelEXIT(lines 448 466) no Hoare annotation was computed. [2020-07-20 13:02:33,759 INFO L268 CegarLoopResult]: For program point L457(lines 457 461) no Hoare annotation was computed. [2020-07-20 13:02:33,759 INFO L271 CegarLoopResult]: At program point L455(line 455) the Hoare annotation is: true [2020-07-20 13:02:33,759 INFO L268 CegarLoopResult]: For program point L457-2(lines 457 461) no Hoare annotation was computed. [2020-07-20 13:02:33,760 INFO L268 CegarLoopResult]: For program point L455-1(line 455) no Hoare annotation was computed. [2020-07-20 13:02:33,760 INFO L271 CegarLoopResult]: At program point isHighWaterLevelENTRY(lines 448 466) the Hoare annotation is: true [2020-07-20 13:02:33,760 INFO L268 CegarLoopResult]: For program point isHighWaterLevelFINAL(lines 448 466) no Hoare annotation was computed. [2020-07-20 13:02:33,760 INFO L264 CegarLoopResult]: At program point changeMethaneLevelENTRY(lines 112 123) the Hoare annotation is: (let ((.cse4 (not (= 0 ~pumpRunning~0))) (.cse0 (not (= 0 ~methAndRunningLastTime~0))) (.cse6 (= 0 ~methaneLevelCritical~0)) (.cse7 (not (= |old(~methaneLevelCritical~0)| 0))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse2 (not (<= ~waterLevel~0 2))) (.cse3 (<= 1 ~methaneLevelCritical~0)) (.cse8 (not (<= 1 ~pumpRunning~0))) (.cse5 (not (<= 1 |old(~methaneLevelCritical~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse0 .cse6 (not (= 0 ~systemActive~0)) .cse7 .cse4) (or .cse0 .cse1 .cse6 .cse2 .cse7 .cse4) (or .cse0 .cse1 .cse6 .cse2 .cse7 .cse8) (or .cse1 .cse2 .cse3 (not (< 1 ~waterLevel~0)) .cse8 .cse5))) [2020-07-20 13:02:33,760 INFO L268 CegarLoopResult]: For program point changeMethaneLevelEXIT(lines 112 123) no Hoare annotation was computed. [2020-07-20 13:02:33,760 INFO L268 CegarLoopResult]: For program point L116-1(lines 112 123) no Hoare annotation was computed. [2020-07-20 13:02:33,760 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2020-07-20 13:02:33,761 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intENTRY(line -1) no Hoare annotation was computed. [2020-07-20 13:02:33,761 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intFINAL(line -1) no Hoare annotation was computed. [2020-07-20 13:02:33,761 INFO L271 CegarLoopResult]: At program point isMethaneLevelCriticalENTRY(lines 124 132) the Hoare annotation is: true [2020-07-20 13:02:33,761 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalFINAL(lines 124 132) no Hoare annotation was computed. [2020-07-20 13:02:33,761 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalEXIT(lines 124 132) no Hoare annotation was computed. [2020-07-20 13:02:33,761 INFO L264 CegarLoopResult]: At program point L280(line 280) the Hoare annotation is: (let ((.cse10 (not (<= |old(~waterLevel~0)| 1))) (.cse3 (< 1 ~waterLevel~0)) (.cse4 (<= ~waterLevel~0 2)) (.cse5 (= 0 ~pumpRunning~0)) (.cse7 (not (= 0 |old(~pumpRunning~0)|))) (.cse12 (not (= 0 ~methaneLevelCritical~0))) (.cse9 (not (< 1 |old(~waterLevel~0)|))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse2 (= 0 ~methAndRunningLastTime~0)) (.cse11 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse14 (<= 1 ~pumpRunning~0)) (.cse1 (not (<= 1 ~methaneLevelCritical~0))) (.cse13 (not (<= 1 |old(~pumpRunning~0)|))) (.cse6 (not (= 0 |old(~methAndRunningLastTime~0)|))) (.cse8 (not (<= |old(~waterLevel~0)| 2)))) (and (or .cse0 .cse1 (and .cse2 .cse3 .cse4 .cse5) .cse6 .cse7 .cse8 .cse9) (or .cse10 .cse0 .cse1 .cse6 .cse7 (and .cse2 .cse11 .cse5)) (or .cse10 .cse0 .cse6 .cse7 .cse12 (and .cse11 .cse5)) (or (not (= 0 ~systemActive~0)) .cse7) (or .cse0 .cse13 .cse12 (and .cse11 (<= ~waterLevel~0 1) .cse14) .cse8) (or .cse0 .cse1 .cse13 .cse8 .cse9 (and (<= (+ ~waterLevel~0 1) |old(~waterLevel~0)|) .cse14)) (or .cse0 (and .cse3 .cse4 .cse5) .cse6 .cse7 .cse12 .cse8 .cse9) (or .cse0 (and .cse2 .cse11 .cse14) .cse1 .cse13 .cse6 .cse8))) [2020-07-20 13:02:33,762 INFO L264 CegarLoopResult]: At program point L278(lines 278 284) the Hoare annotation is: (let ((.cse20 (= 0 ~methaneLevelCritical~0)) (.cse21 (<= 1 ~systemActive~0)) (.cse5 (<= ~waterLevel~0 1)) (.cse17 (<= ~waterLevel~0 2)) (.cse18 (= 0 ~pumpRunning~0)) (.cse16 (< 1 ~waterLevel~0)) (.cse4 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse6 (<= 1 ~pumpRunning~0))) (let ((.cse11 (and (= 0 ~methAndRunningLastTime~0) .cse16 .cse4 .cse6)) (.cse15 (and .cse16 .cse4 .cse17 .cse18)) (.cse7 (not (<= |old(~waterLevel~0)| 2))) (.cse19 (not (< 1 |old(~waterLevel~0)|))) (.cse12 (and .cse4 .cse18 .cse5)) (.cse13 (not (<= 1 ~methaneLevelCritical~0))) (.cse1 (not (<= 1 |old(~pumpRunning~0)|))) (.cse8 (not (<= |old(~waterLevel~0)| 1))) (.cse0 (not .cse21)) (.cse14 (not (= 0 |old(~methAndRunningLastTime~0)|))) (.cse2 (and .cse20 .cse4 .cse18 .cse5 .cse21)) (.cse3 (not .cse20)) (.cse9 (not (= 0 ~systemActive~0))) (.cse10 (not (= 0 |old(~pumpRunning~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 (and .cse4 .cse5 .cse6) .cse7) (or .cse8 .cse9 .cse10 .cse5) (or .cse11 .cse0 .cse12 .cse13 .cse14 .cse10 .cse7 .cse15) (or (and .cse16 .cse17 .cse6) .cse0 (and .cse16 .cse17 .cse18) .cse14 .cse10 .cse3 .cse7 .cse19) (or .cse11 .cse0 .cse13 .cse14 .cse10 .cse7 .cse19 .cse15) (or .cse0 .cse13 .cse1 (and .cse18 (<= (+ ~waterLevel~0 1) |old(~waterLevel~0)|)) .cse7 .cse19) (or .cse8 .cse0 .cse12 .cse13 .cse1 .cse14) (or .cse8 .cse0 .cse14 .cse10 .cse2 .cse3) (or .cse9 .cse10 .cse18)))) [2020-07-20 13:02:33,762 INFO L264 CegarLoopResult]: At program point L273(line 273) the Hoare annotation is: (let ((.cse3 (<= 1 ~pumpRunning~0))) (let ((.cse5 (not (= 0 |old(~pumpRunning~0)|))) (.cse4 (not (= 0 ~methaneLevelCritical~0))) (.cse9 (and (< 1 ~waterLevel~0) (<= ~waterLevel~0 2) .cse3)) (.cse10 (not (< 1 |old(~waterLevel~0)|))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse2 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse8 (not (<= 1 ~methaneLevelCritical~0))) (.cse1 (not (<= 1 |old(~pumpRunning~0)|))) (.cse6 (not (= 0 |old(~methAndRunningLastTime~0)|))) (.cse7 (not (<= |old(~waterLevel~0)| 2)))) (and (or (not (<= |old(~waterLevel~0)| 1)) .cse0 .cse1 (and .cse2 .cse3) .cse4) (or (not (= 0 ~systemActive~0)) .cse5) (or .cse0 .cse6 .cse5 .cse4 .cse7) (or .cse0 .cse8 .cse6 .cse5 .cse7) (or .cse9 .cse0 .cse1 .cse4 .cse7 .cse10) (or .cse0 .cse9 .cse8 .cse1 .cse7 .cse10) (or .cse0 (and (= 0 ~methAndRunningLastTime~0) .cse2 .cse3) .cse8 .cse1 .cse6 .cse7)))) [2020-07-20 13:02:33,762 INFO L264 CegarLoopResult]: At program point timeShiftENTRY(lines 267 290) the Hoare annotation is: (let ((.cse16 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse13 (<= 1 ~pumpRunning~0))) (let ((.cse4 (< 1 ~waterLevel~0)) (.cse11 (<= ~waterLevel~0 2)) (.cse8 (not (< 1 |old(~waterLevel~0)|))) (.cse15 (and .cse16 .cse13)) (.cse0 (not (<= |old(~waterLevel~0)| 1))) (.cse6 (not (= 0 ~methaneLevelCritical~0))) (.cse3 (not (<= 1 ~systemActive~0))) (.cse10 (= 0 ~methAndRunningLastTime~0)) (.cse14 (not (<= 1 ~methaneLevelCritical~0))) (.cse5 (not (<= 1 |old(~pumpRunning~0)|))) (.cse9 (not (= 0 |old(~methAndRunningLastTime~0)|))) (.cse7 (not (<= |old(~waterLevel~0)| 2))) (.cse1 (not (= 0 ~systemActive~0))) (.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse12 (= 0 ~pumpRunning~0))) (and (or .cse0 .cse1 .cse2 (<= ~waterLevel~0 1)) (or .cse3 .cse4 .cse5 .cse6 .cse7 .cse8) (or .cse3 .cse9 .cse2 .cse6 .cse7 (and .cse10 .cse11 .cse12)) (or .cse3 (and .cse4 .cse11 .cse13) .cse14 .cse5 .cse7 .cse8) (or .cse3 .cse4 .cse9 .cse2 .cse6 .cse7 .cse8) (or .cse10 .cse1 .cse9 .cse2) (or .cse3 .cse14 (and .cse10 .cse4 .cse11 .cse12) .cse9 .cse2 .cse7 .cse8) (or .cse0 .cse3 .cse14 .cse5 .cse15 .cse9) (or .cse0 .cse3 .cse14 .cse9 .cse2 (and .cse10 .cse16 .cse12)) (or .cse3 .cse5 .cse15 .cse6 .cse7) (or .cse0 .cse3 .cse16 .cse9 .cse2 .cse6) (or .cse3 .cse10 .cse14 .cse5 .cse9 .cse7) (or .cse1 .cse2 .cse12)))) [2020-07-20 13:02:33,762 INFO L268 CegarLoopResult]: For program point L271(lines 270 289) no Hoare annotation was computed. [2020-07-20 13:02:33,763 INFO L268 CegarLoopResult]: For program point timeShiftEXIT(lines 267 290) no Hoare annotation was computed. [2020-07-20 13:02:33,763 INFO L268 CegarLoopResult]: For program point timeShiftFINAL(lines 267 290) no Hoare annotation was computed. [2020-07-20 13:02:33,763 INFO L268 CegarLoopResult]: For program point cleanupEXIT(lines 909 938) no Hoare annotation was computed. [2020-07-20 13:02:33,763 INFO L271 CegarLoopResult]: At program point cleanupENTRY(lines 909 938) the Hoare annotation is: true [2020-07-20 13:02:33,763 INFO L268 CegarLoopResult]: For program point L923(lines 923 927) no Hoare annotation was computed. [2020-07-20 13:02:33,763 INFO L271 CegarLoopResult]: At program point L923-1(lines 923 927) the Hoare annotation is: true [2020-07-20 13:02:33,763 INFO L268 CegarLoopResult]: For program point L920(line 920) no Hoare annotation was computed. [2020-07-20 13:02:33,763 INFO L271 CegarLoopResult]: At program point L919-2(lines 919 933) the Hoare annotation is: true [2020-07-20 13:02:33,763 INFO L271 CegarLoopResult]: At program point L915(line 915) the Hoare annotation is: true [2020-07-20 13:02:33,764 INFO L268 CegarLoopResult]: For program point L915-1(line 915) no Hoare annotation was computed. [2020-07-20 13:02:33,764 INFO L271 CegarLoopResult]: At program point L934(lines 909 938) the Hoare annotation is: true [2020-07-20 13:02:33,764 INFO L268 CegarLoopResult]: For program point L930(line 930) no Hoare annotation was computed. [2020-07-20 13:02:33,764 INFO L264 CegarLoopResult]: At program point lowerWaterLevelENTRY(lines 88 99) the Hoare annotation is: (let ((.cse0 (not (<= |old(~waterLevel~0)| 1))) (.cse3 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse5 (not (= 0 ~methaneLevelCritical~0))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse2 (not (<= 1 ~methaneLevelCritical~0))) (.cse8 (< 1 ~waterLevel~0)) (.cse6 (<= ~waterLevel~0 2)) (.cse7 (not (<= |old(~waterLevel~0)| 2))) (.cse9 (not (< 1 |old(~waterLevel~0)|))) (.cse4 (not (<= 1 ~pumpRunning~0)))) (and (or .cse0 (not (= 0 ~methAndRunningLastTime~0)) .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse1 .cse3 .cse5 .cse4) (or .cse1 .cse6 .cse5 .cse7 .cse4) (or .cse1 .cse8 .cse5 .cse7 .cse9 .cse4) (or .cse1 .cse2 (and .cse8 .cse6) .cse7 .cse9 .cse4))) [2020-07-20 13:02:33,764 INFO L268 CegarLoopResult]: For program point L92-1(lines 88 99) no Hoare annotation was computed. [2020-07-20 13:02:33,764 INFO L268 CegarLoopResult]: For program point lowerWaterLevelEXIT(lines 88 99) no Hoare annotation was computed. [2020-07-20 13:02:33,764 INFO L268 CegarLoopResult]: For program point setupEXIT(lines 963 969) no Hoare annotation was computed. [2020-07-20 13:02:33,765 INFO L271 CegarLoopResult]: At program point setupFINAL(lines 963 969) the Hoare annotation is: true [2020-07-20 13:02:33,765 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 13:02:33,765 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0)) [2020-07-20 13:02:33,765 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 13:02:33,765 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 13:02:33,765 INFO L264 CegarLoopResult]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 299 323) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (<= ~waterLevel~0 2))) (.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse4 (not (= 0 ~methaneLevelCritical~0))) (.cse3 (= 0 ~pumpRunning~0))) (and (or (not (= 0 ~methAndRunningLastTime~0)) .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1 .cse2 .cse3) (or .cse0 (not (<= 1 |old(~pumpRunning~0)|)) .cse4 (not (<= ~waterLevel~0 1)) (<= 1 ~pumpRunning~0)) (or .cse0 .cse1 .cse2 .cse4 .cse3))) [2020-07-20 13:02:33,765 INFO L264 CegarLoopResult]: At program point L318(line 318) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (<= ~waterLevel~0 2))) (.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (not (= 0 ~methaneLevelCritical~0)))) (and (or (not (= 0 ~methAndRunningLastTime~0)) .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1 .cse2) (or .cse0 (not (<= 1 |old(~pumpRunning~0)|)) .cse3 (not (<= ~waterLevel~0 1)) (<= 1 ~pumpRunning~0)) (or .cse0 .cse1 .cse2 .cse3))) [2020-07-20 13:02:33,765 INFO L268 CegarLoopResult]: For program point L318-1(lines 299 323) no Hoare annotation was computed. [2020-07-20 13:02:33,766 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 299 323) no Hoare annotation was computed. [2020-07-20 13:02:33,766 INFO L264 CegarLoopResult]: At program point L313(line 313) the Hoare annotation is: (let ((.cse1 (and (= 0 processEnvironment__wrappee__highWaterSensor_~tmp~1) (= 0 ~pumpRunning~0))) (.cse2 (not (<= ~waterLevel~0 2))) (.cse3 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse4 (not (= 0 ~methaneLevelCritical~0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or (not (= 0 ~methAndRunningLastTime~0)) .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0)) .cse2 .cse3) (or .cse0 (not (<= 1 |old(~pumpRunning~0)|)) .cse4 (not (<= ~waterLevel~0 1))))) [2020-07-20 13:02:33,766 INFO L264 CegarLoopResult]: At program point L309(line 309) the Hoare annotation is: (let ((.cse1 (and (< 1 ~waterLevel~0) (= 0 ~pumpRunning~0))) (.cse2 (not (<= ~waterLevel~0 2))) (.cse3 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse4 (not (= 0 ~methaneLevelCritical~0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or (not (= 0 ~methAndRunningLastTime~0)) .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1 .cse2 .cse3) (or .cse0 (not (<= 1 |old(~pumpRunning~0)|)) .cse4 (not (<= ~waterLevel~0 1))))) [2020-07-20 13:02:33,766 INFO L268 CegarLoopResult]: For program point L307(lines 307 315) no Hoare annotation was computed. [2020-07-20 13:02:33,766 INFO L264 CegarLoopResult]: At program point L305(line 305) the Hoare annotation is: (let ((.cse1 (not (<= ~waterLevel~0 2))) (.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (= 0 ~pumpRunning~0)) (.cse0 (not (<= 1 ~systemActive~0))) (.cse4 (not (= 0 ~methaneLevelCritical~0)))) (and (or (not (= 0 ~methAndRunningLastTime~0)) .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse2 .cse4 .cse3) (or .cse0 (not (<= 1 |old(~pumpRunning~0)|)) .cse4 (not (<= ~waterLevel~0 1))))) [2020-07-20 13:02:33,766 INFO L268 CegarLoopResult]: For program point L305-1(line 305) no Hoare annotation was computed. [2020-07-20 13:02:33,766 INFO L268 CegarLoopResult]: For program point L303(lines 303 320) no Hoare annotation was computed. [2020-07-20 13:02:33,767 INFO L268 CegarLoopResult]: For program point waterRiseEXIT(lines 100 111) no Hoare annotation was computed. [2020-07-20 13:02:33,767 INFO L268 CegarLoopResult]: For program point L104-1(lines 100 111) no Hoare annotation was computed. [2020-07-20 13:02:33,767 INFO L264 CegarLoopResult]: At program point waterRiseENTRY(lines 100 111) the Hoare annotation is: (let ((.cse3 (and (< 1 ~waterLevel~0) (<= ~waterLevel~0 2))) (.cse4 (not (<= |old(~waterLevel~0)| 2))) (.cse5 (not (< 1 |old(~waterLevel~0)|))) (.cse9 (not (<= 1 ~pumpRunning~0))) (.cse2 (not (= 0 ~methaneLevelCritical~0))) (.cse7 (not (<= |old(~waterLevel~0)| 1))) (.cse0 (not (= 0 ~methAndRunningLastTime~0))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse10 (not (<= 1 ~methaneLevelCritical~0))) (.cse8 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse6 (not (= 0 ~pumpRunning~0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (or .cse7 .cse0 .cse1 .cse8 .cse2 .cse9) (or .cse7 .cse0 (not (= 0 ~systemActive~0)) (<= ~waterLevel~0 1) .cse6) (or .cse0 .cse1 .cse10 .cse3 .cse4 .cse5 .cse6) (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse9) (or .cse1 .cse10 .cse3 .cse4 .cse5 .cse9) (or .cse7 .cse0 .cse1 .cse8 .cse2 .cse6) (or .cse7 .cse0 .cse1 .cse10 .cse8 .cse6))) [2020-07-20 13:02:33,767 INFO L268 CegarLoopResult]: For program point __automaton_failFINAL(lines 1005 1012) no Hoare annotation was computed. [2020-07-20 13:02:33,767 INFO L268 CegarLoopResult]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 1009) no Hoare annotation was computed. [2020-07-20 13:02:33,767 INFO L271 CegarLoopResult]: At program point __automaton_failENTRY(lines 1005 1012) the Hoare annotation is: true [2020-07-20 13:02:33,768 INFO L268 CegarLoopResult]: For program point __automaton_failEXIT(lines 1005 1012) no Hoare annotation was computed. [2020-07-20 13:02:33,768 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__lowWaterSensorEXIT(lines 325 349) no Hoare annotation was computed. [2020-07-20 13:02:33,768 INFO L264 CegarLoopResult]: At program point processEnvironment__wrappee__lowWaterSensorENTRY(lines 325 349) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (<= ~waterLevel~0 2))) (.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse4 (not (= 0 ~methaneLevelCritical~0))) (.cse3 (= 0 ~pumpRunning~0))) (and (or (not (= 0 ~methAndRunningLastTime~0)) .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1 .cse2 .cse3) (or .cse0 (not (<= 1 |old(~pumpRunning~0)|)) .cse4 (not (<= ~waterLevel~0 1)) (<= 1 ~pumpRunning~0)) (or .cse0 .cse1 .cse2 .cse4 .cse3))) [2020-07-20 13:02:33,768 INFO L264 CegarLoopResult]: At program point L344(line 344) the Hoare annotation is: (let ((.cse1 (not (<= ~waterLevel~0 2))) (.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (= 0 ~pumpRunning~0)) (.cse0 (not (<= 1 ~systemActive~0))) (.cse4 (not (= 0 ~methaneLevelCritical~0)))) (and (or (not (= 0 ~methAndRunningLastTime~0)) .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse2 .cse4 .cse3) (or .cse0 (not (<= 1 |old(~pumpRunning~0)|)) .cse4 (not (<= ~waterLevel~0 1))))) [2020-07-20 13:02:33,768 INFO L268 CegarLoopResult]: For program point L344-1(lines 325 349) no Hoare annotation was computed. [2020-07-20 13:02:33,768 INFO L264 CegarLoopResult]: At program point L339(line 339) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (<= ~waterLevel~0 2))) (.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (not (= 0 ~methaneLevelCritical~0)))) (and (or (not (= 0 ~methAndRunningLastTime~0)) .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1 .cse2) (or .cse0 (not (<= 1 |old(~pumpRunning~0)|)) .cse3 (not (<= ~waterLevel~0 1)) (<= 1 ~pumpRunning~0)) (or .cse0 .cse1 .cse2 .cse3))) [2020-07-20 13:02:33,769 INFO L264 CegarLoopResult]: At program point L335(line 335) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (<= ~waterLevel~0 2))) (.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (not (= 0 ~methaneLevelCritical~0)))) (and (or (not (= 0 ~methAndRunningLastTime~0)) .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1 .cse2) (or .cse0 (not (<= 1 |old(~pumpRunning~0)|)) .cse3 (not (<= ~waterLevel~0 1)) (<= 1 ~pumpRunning~0)) (or .cse0 .cse1 .cse2 .cse3))) [2020-07-20 13:02:33,769 INFO L268 CegarLoopResult]: For program point L333(lines 333 341) no Hoare annotation was computed. [2020-07-20 13:02:33,769 INFO L264 CegarLoopResult]: At program point L331(line 331) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (<= ~waterLevel~0 2))) (.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (not (= 0 ~methaneLevelCritical~0)))) (and (or (not (= 0 ~methAndRunningLastTime~0)) .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1 .cse2) (or .cse0 (not (<= 1 |old(~pumpRunning~0)|)) .cse3 (not (<= ~waterLevel~0 1)) (<= 1 ~pumpRunning~0)) (or .cse0 .cse1 .cse2 .cse3))) [2020-07-20 13:02:33,769 INFO L268 CegarLoopResult]: For program point L331-1(line 331) no Hoare annotation was computed. [2020-07-20 13:02:33,769 INFO L268 CegarLoopResult]: For program point L329(lines 329 346) no Hoare annotation was computed. [2020-07-20 13:02:33,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 01:02:33 BoogieIcfgContainer [2020-07-20 13:02:33,803 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 13:02:33,805 INFO L168 Benchmark]: Toolchain (without parser) took 26858.44 ms. Allocated memory was 143.1 MB in the beginning and 522.7 MB in the end (delta: 379.6 MB). Free memory was 102.5 MB in the beginning and 315.0 MB in the end (delta: -212.5 MB). Peak memory consumption was 397.9 MB. Max. memory is 7.1 GB. [2020-07-20 13:02:33,807 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 143.1 MB. Free memory is still 121.6 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-20 13:02:33,807 INFO L168 Benchmark]: CACSL2BoogieTranslator took 682.04 ms. Allocated memory was 143.1 MB in the beginning and 202.9 MB in the end (delta: 59.8 MB). Free memory was 102.1 MB in the beginning and 170.2 MB in the end (delta: -68.1 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. [2020-07-20 13:02:33,808 INFO L168 Benchmark]: Boogie Preprocessor took 98.68 ms. Allocated memory is still 202.9 MB. Free memory was 170.2 MB in the beginning and 166.1 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-07-20 13:02:33,812 INFO L168 Benchmark]: RCFGBuilder took 1251.24 ms. Allocated memory was 202.9 MB in the beginning and 235.9 MB in the end (delta: 33.0 MB). Free memory was 166.1 MB in the beginning and 193.6 MB in the end (delta: -27.5 MB). Peak memory consumption was 83.3 MB. Max. memory is 7.1 GB. [2020-07-20 13:02:33,813 INFO L168 Benchmark]: TraceAbstraction took 24819.20 ms. Allocated memory was 235.9 MB in the beginning and 522.7 MB in the end (delta: 286.8 MB). Free memory was 192.1 MB in the beginning and 315.0 MB in the end (delta: -122.9 MB). Peak memory consumption was 394.7 MB. Max. memory is 7.1 GB. [2020-07-20 13:02:33,822 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 143.1 MB. Free memory is still 121.6 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 682.04 ms. Allocated memory was 143.1 MB in the beginning and 202.9 MB in the end (delta: 59.8 MB). Free memory was 102.1 MB in the beginning and 170.2 MB in the end (delta: -68.1 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 98.68 ms. Allocated memory is still 202.9 MB. Free memory was 170.2 MB in the beginning and 166.1 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1251.24 ms. Allocated memory was 202.9 MB in the beginning and 235.9 MB in the end (delta: 33.0 MB). Free memory was 166.1 MB in the beginning and 193.6 MB in the end (delta: -27.5 MB). Peak memory consumption was 83.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 24819.20 ms. Allocated memory was 235.9 MB in the beginning and 522.7 MB in the end (delta: 286.8 MB). Free memory was 192.1 MB in the beginning and 315.0 MB in the end (delta: -122.9 MB). Peak memory consumption was 394.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1009]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 201]: Loop Invariant Derived loop invariant: (((!(\old(waterLevel) <= 1) || !(0 == \old(methAndRunningLastTime))) || !(0 == \old(pumpRunning))) || !(\old(methaneLevelCritical) == 0)) || !(1 <= \old(systemActive)) - InvariantResult [Line: 919]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 202]: Loop Invariant Derived loop invariant: (((((((((((((0 == methAndRunningLastTime && 1 <= methaneLevelCritical) && waterLevel <= 2) && 0 == pumpRunning) && splverifierCounter <= 0) && 1 <= systemActive) || !(\old(waterLevel) <= 1)) || (((0 == methAndRunningLastTime && 0 == systemActive) && 0 == pumpRunning) && splverifierCounter <= 0)) || !(0 == \old(methAndRunningLastTime))) || !(0 == \old(pumpRunning))) || !(\old(methaneLevelCritical) == 0)) || (((((1 < waterLevel && 1 <= methaneLevelCritical) && waterLevel <= 2) && splverifierCounter <= 0) && 1 <= systemActive) && 1 <= pumpRunning)) || (((((0 == methaneLevelCritical && 0 == methAndRunningLastTime) && waterLevel <= 2) && 0 == pumpRunning) && splverifierCounter <= 0) && 1 <= systemActive)) || (((((0 == methaneLevelCritical && 0 == methAndRunningLastTime) && waterLevel <= 2) && splverifierCounter <= 0) && 1 <= systemActive) && 1 <= pumpRunning)) || !(1 <= \old(systemActive)) - InvariantResult [Line: 909]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 43 procedures, 256 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 14.2s, OverallIterations: 13, TraceHistogramMax: 3, AutomataDifference: 3.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 10.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2600 SDtfs, 1770 SDslu, 4552 SDs, 0 SdLazy, 1000 SolverSat, 829 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1486 GetRequests, 1419 SyntacticMatches, 17 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2235occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 13 MinimizatonAttempts, 945 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 70 LocationsWithAnnotation, 3784 PreInvPairs, 3927 NumberOfFragments, 3810 HoareAnnotationTreeSize, 3784 FomulaSimplifications, 6412 FormulaSimplificationTreeSizeReduction, 1.9s HoareSimplificationTime, 70 FomulaSimplificationsInter, 15315 FormulaSimplificationTreeSizeReductionInter, 8.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 4.6s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 1308 NumberOfCodeBlocks, 1166 NumberOfCodeBlocksAsserted, 46 NumberOfCheckSat, 1469 ConstructedInterpolants, 0 QuantifiedInterpolants, 335353 SizeOfPredicates, 32 NumberOfNonLiveVariables, 10070 ConjunctsInSsa, 120 ConjunctsInUnsatCore, 14 InterpolantComputations, 12 PerfectInterpolantSequences, 247/258 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 correct! Received shutdown request...