/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 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product57.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 12:50:50,606 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 12:50:50,609 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 12:50:50,621 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 12:50:50,621 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 12:50:50,622 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 12:50:50,623 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 12:50:50,625 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 12:50:50,626 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 12:50:50,627 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 12:50:50,628 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 12:50:50,629 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 12:50:50,629 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 12:50:50,630 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 12:50:50,631 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 12:50:50,632 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 12:50:50,633 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 12:50:50,634 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 12:50:50,636 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 12:50:50,638 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 12:50:50,640 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 12:50:50,641 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 12:50:50,642 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 12:50:50,642 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 12:50:50,645 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-21 12:50:50,645 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-21 12:50:50,646 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-21 12:50:50,647 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-21 12:50:50,647 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-21 12:50:50,648 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-21 12:50:50,648 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-21 12:50:50,649 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-21 12:50:50,650 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-21 12:50:50,651 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-21 12:50:50,652 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-21 12:50:50,652 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-21 12:50:50,653 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-21 12:50:50,653 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-21 12:50:50,653 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 12:50:50,654 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 12:50:50,655 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 12:50:50,656 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 12:50:50,670 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 12:50:50,671 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 12:50:50,672 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 12:50:50,672 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 12:50:50,672 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 12:50:50,672 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 12:50:50,673 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 12:50:50,673 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 12:50:50,673 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 12:50:50,673 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 12:50:50,673 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 12:50:50,674 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 12:50:50,674 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 12:50:50,674 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 12:50:50,674 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 12:50:50,674 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 12:50:50,675 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 12:50:50,675 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 12:50:50,675 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 12:50:50,675 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 12:50:50,675 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 12:50:50,676 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 12:50:50,676 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 12:50:50,676 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 12:50:50,676 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 12:50:50,676 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 12:50:50,677 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:50:50,677 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 12:50:50,677 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 12:50:50,677 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 -> 2 [2020-07-21 12:50:50,956 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 12:50:50,978 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 12:50:50,982 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 12:50:50,986 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 12:50:50,986 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 12:50:50,988 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product57.cil.c [2020-07-21 12:50:51,072 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9987ba4ce/04850b05593c494eb4fb5a68aa73fc5b/FLAG4584ea7a8 [2020-07-21 12:50:51,646 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 12:50:51,647 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product57.cil.c [2020-07-21 12:50:51,666 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9987ba4ce/04850b05593c494eb4fb5a68aa73fc5b/FLAG4584ea7a8 [2020-07-21 12:50:51,944 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9987ba4ce/04850b05593c494eb4fb5a68aa73fc5b [2020-07-21 12:50:51,955 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 12:50:51,958 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 12:50:51,959 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 12:50:51,959 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 12:50:51,963 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 12:50:51,964 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:50:51" (1/1) ... [2020-07-21 12:50:51,967 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ee61c50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:50:51, skipping insertion in model container [2020-07-21 12:50:51,967 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:50:51" (1/1) ... [2020-07-21 12:50:51,975 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 12:50:52,033 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 12:50:52,474 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 12:50:52,490 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 12:50:52,573 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 12:50:52,615 INFO L208 MainTranslator]: Completed translation [2020-07-21 12:50:52,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:50:52 WrapperNode [2020-07-21 12:50:52,616 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 12:50:52,617 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 12:50:52,617 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 12:50:52,617 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 12:50:52,630 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:50:52" (1/1) ... [2020-07-21 12:50:52,630 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:50:52" (1/1) ... [2020-07-21 12:50:52,649 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:50:52" (1/1) ... [2020-07-21 12:50:52,650 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:50:52" (1/1) ... [2020-07-21 12:50:52,683 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:50:52" (1/1) ... [2020-07-21 12:50:52,693 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:50:52" (1/1) ... [2020-07-21 12:50:52,699 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:50:52" (1/1) ... [2020-07-21 12:50:52,712 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 12:50:52,712 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 12:50:52,712 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 12:50:52,713 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 12:50:52,714 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:50:52" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 12:50:52,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 12:50:52,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 12:50:52,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-21 12:50:52,775 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-07-21 12:50:52,775 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-21 12:50:52,775 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-21 12:50:52,775 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-21 12:50:52,776 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-21 12:50:52,776 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-21 12:50:52,780 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-21 12:50:52,781 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-21 12:50:52,782 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-21 12:50:52,782 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-21 12:50:52,782 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-21 12:50:52,782 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-21 12:50:52,783 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-21 12:50:52,783 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-21 12:50:52,783 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-07-21 12:50:52,784 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-21 12:50:52,784 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-07-21 12:50:52,784 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-21 12:50:52,784 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-21 12:50:52,784 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-21 12:50:52,784 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-21 12:50:52,784 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-21 12:50:52,785 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-21 12:50:52,785 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-07-21 12:50:52,786 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-21 12:50:52,786 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-21 12:50:52,786 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-21 12:50:52,786 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-21 12:50:52,787 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 12:50:52,787 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-21 12:50:52,787 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-21 12:50:52,787 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-21 12:50:52,787 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-21 12:50:52,787 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-21 12:50:52,787 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-21 12:50:52,788 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-21 12:50:52,788 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-07-21 12:50:52,788 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-21 12:50:52,788 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 12:50:52,788 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 12:50:52,788 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-21 12:50:52,789 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-21 12:50:52,789 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-21 12:50:52,789 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-21 12:50:52,789 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-07-21 12:50:52,789 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-21 12:50:52,789 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-21 12:50:52,789 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-21 12:50:52,790 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-21 12:50:52,790 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-21 12:50:52,790 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-21 12:50:52,790 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-21 12:50:52,790 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-21 12:50:52,791 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-21 12:50:52,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-21 12:50:52,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-21 12:50:52,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-21 12:50:52,792 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-21 12:50:52,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-21 12:50:52,792 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-21 12:50:52,792 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-21 12:50:52,792 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-21 12:50:52,792 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-21 12:50:52,793 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-21 12:50:52,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-21 12:50:52,793 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-21 12:50:52,793 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-21 12:50:52,793 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-21 12:50:52,793 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-21 12:50:52,794 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-21 12:50:52,794 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-21 12:50:52,795 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-21 12:50:52,795 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-21 12:50:52,795 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-21 12:50:52,796 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-07-21 12:50:52,796 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-21 12:50:52,797 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-21 12:50:52,797 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-21 12:50:52,797 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-21 12:50:52,797 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-21 12:50:52,797 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-21 12:50:52,797 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-07-21 12:50:52,798 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-07-21 12:50:52,798 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-07-21 12:50:52,799 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-21 12:50:52,799 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-21 12:50:52,799 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-21 12:50:52,799 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-21 12:50:52,799 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 12:50:52,799 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-21 12:50:52,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 12:50:52,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-21 12:50:52,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 12:50:53,827 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 12:50:53,827 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-21 12:50:53,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:50:53 BoogieIcfgContainer [2020-07-21 12:50:53,833 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 12:50:53,834 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 12:50:53,834 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 12:50:53,837 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 12:50:53,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 12:50:51" (1/3) ... [2020-07-21 12:50:53,838 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b858574 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:50:53, skipping insertion in model container [2020-07-21 12:50:53,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:50:52" (2/3) ... [2020-07-21 12:50:53,839 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b858574 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:50:53, skipping insertion in model container [2020-07-21 12:50:53,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:50:53" (3/3) ... [2020-07-21 12:50:53,841 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product57.cil.c [2020-07-21 12:50:53,851 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 12:50:53,859 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 12:50:53,873 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 12:50:53,899 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 12:50:53,900 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 12:50:53,900 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 12:50:53,900 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 12:50:53,901 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 12:50:53,901 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 12:50:53,901 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 12:50:53,901 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 12:50:53,925 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states. [2020-07-21 12:50:53,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-21 12:50:53,935 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:50:53,936 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:50:53,937 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:50:53,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:50:53,943 INFO L82 PathProgramCache]: Analyzing trace with hash 135364863, now seen corresponding path program 1 times [2020-07-21 12:50:53,952 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:50:53,952 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [65668637] [2020-07-21 12:50:53,953 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 12:50:54,368 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:50:54,368 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:50:54,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 636 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-21 12:50:54,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:50:54,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:50:54,413 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:50:54,415 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [65668637] [2020-07-21 12:50:54,416 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:50:54,416 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-21 12:50:54,417 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978771264] [2020-07-21 12:50:54,422 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-21 12:50:54,423 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:50:54,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-21 12:50:54,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 12:50:54,441 INFO L87 Difference]: Start difference. First operand 183 states. Second operand 2 states. [2020-07-21 12:50:54,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:50:54,503 INFO L93 Difference]: Finished difference Result 280 states and 345 transitions. [2020-07-21 12:50:54,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-21 12:50:54,505 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2020-07-21 12:50:54,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:50:54,524 INFO L225 Difference]: With dead ends: 280 [2020-07-21 12:50:54,525 INFO L226 Difference]: Without dead ends: 140 [2020-07-21 12:50:54,532 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 12:50:54,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-07-21 12:50:54,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2020-07-21 12:50:54,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-07-21 12:50:54,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 164 transitions. [2020-07-21 12:50:54,632 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 164 transitions. Word has length 46 [2020-07-21 12:50:54,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:50:54,633 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 164 transitions. [2020-07-21 12:50:54,633 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-21 12:50:54,633 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 164 transitions. [2020-07-21 12:50:54,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-07-21 12:50:54,638 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:50:54,638 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:50:54,852 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:50:54,852 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:50:54,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:50:54,853 INFO L82 PathProgramCache]: Analyzing trace with hash 327228860, now seen corresponding path program 1 times [2020-07-21 12:50:54,854 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:50:54,855 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [815238978] [2020-07-21 12:50:54,855 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 12:50:55,224 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:50:55,225 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:50:55,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 637 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-21 12:50:55,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:50:55,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:50:55,266 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:50:55,267 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [815238978] [2020-07-21 12:50:55,267 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:50:55,267 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 12:50:55,267 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237907490] [2020-07-21 12:50:55,269 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 12:50:55,269 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:50:55,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 12:50:55,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:50:55,270 INFO L87 Difference]: Start difference. First operand 140 states and 164 transitions. Second operand 3 states. [2020-07-21 12:50:55,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:50:55,299 INFO L93 Difference]: Finished difference Result 256 states and 307 transitions. [2020-07-21 12:50:55,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 12:50:55,299 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2020-07-21 12:50:55,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:50:55,302 INFO L225 Difference]: With dead ends: 256 [2020-07-21 12:50:55,302 INFO L226 Difference]: Without dead ends: 140 [2020-07-21 12:50:55,304 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:50:55,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-07-21 12:50:55,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2020-07-21 12:50:55,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-07-21 12:50:55,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 163 transitions. [2020-07-21 12:50:55,319 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 163 transitions. Word has length 47 [2020-07-21 12:50:55,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:50:55,319 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 163 transitions. [2020-07-21 12:50:55,319 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 12:50:55,320 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 163 transitions. [2020-07-21 12:50:55,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-07-21 12:50:55,322 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:50:55,323 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:50:55,535 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:50:55,536 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:50:55,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:50:55,537 INFO L82 PathProgramCache]: Analyzing trace with hash -2087429586, now seen corresponding path program 1 times [2020-07-21 12:50:55,537 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:50:55,538 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [955180449] [2020-07-21 12:50:55,538 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 12:50:55,845 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:50:55,845 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:50:55,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 660 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-21 12:50:55,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:50:55,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:50:55,879 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:50:55,879 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [955180449] [2020-07-21 12:50:55,879 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:50:55,880 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 12:50:55,880 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55140916] [2020-07-21 12:50:55,881 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 12:50:55,881 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:50:55,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 12:50:55,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:50:55,882 INFO L87 Difference]: Start difference. First operand 140 states and 163 transitions. Second operand 3 states. [2020-07-21 12:50:55,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:50:55,898 INFO L93 Difference]: Finished difference Result 229 states and 265 transitions. [2020-07-21 12:50:55,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 12:50:55,899 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2020-07-21 12:50:55,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:50:55,901 INFO L225 Difference]: With dead ends: 229 [2020-07-21 12:50:55,901 INFO L226 Difference]: Without dead ends: 131 [2020-07-21 12:50:55,903 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:50:55,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-07-21 12:50:55,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2020-07-21 12:50:55,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2020-07-21 12:50:55,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 151 transitions. [2020-07-21 12:50:55,915 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 151 transitions. Word has length 60 [2020-07-21 12:50:55,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:50:55,916 INFO L479 AbstractCegarLoop]: Abstraction has 131 states and 151 transitions. [2020-07-21 12:50:55,916 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 12:50:55,916 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 151 transitions. [2020-07-21 12:50:55,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-07-21 12:50:55,919 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:50:55,919 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:50:56,132 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:50:56,133 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:50:56,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:50:56,134 INFO L82 PathProgramCache]: Analyzing trace with hash 1468702982, now seen corresponding path program 1 times [2020-07-21 12:50:56,135 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:50:56,135 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [298887782] [2020-07-21 12:50:56,136 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 12:50:56,500 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:50:56,500 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:50:56,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 667 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 12:50:56,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:50:56,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:50:56,553 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:50:56,553 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [298887782] [2020-07-21 12:50:56,553 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:50:56,554 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 12:50:56,554 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64439321] [2020-07-21 12:50:56,554 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 12:50:56,555 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:50:56,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 12:50:56,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-21 12:50:56,556 INFO L87 Difference]: Start difference. First operand 131 states and 151 transitions. Second operand 6 states. [2020-07-21 12:50:57,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:50:57,118 INFO L93 Difference]: Finished difference Result 316 states and 381 transitions. [2020-07-21 12:50:57,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 12:50:57,119 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 64 [2020-07-21 12:50:57,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:50:57,126 INFO L225 Difference]: With dead ends: 316 [2020-07-21 12:50:57,126 INFO L226 Difference]: Without dead ends: 209 [2020-07-21 12:50:57,128 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-21 12:50:57,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2020-07-21 12:50:57,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 194. [2020-07-21 12:50:57,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2020-07-21 12:50:57,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 219 transitions. [2020-07-21 12:50:57,151 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 219 transitions. Word has length 64 [2020-07-21 12:50:57,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:50:57,152 INFO L479 AbstractCegarLoop]: Abstraction has 194 states and 219 transitions. [2020-07-21 12:50:57,152 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 12:50:57,152 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 219 transitions. [2020-07-21 12:50:57,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-07-21 12:50:57,155 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:50:57,155 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] [2020-07-21 12:50:57,370 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:50:57,371 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:50:57,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:50:57,372 INFO L82 PathProgramCache]: Analyzing trace with hash -1930431345, now seen corresponding path program 1 times [2020-07-21 12:50:57,372 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:50:57,373 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1290662621] [2020-07-21 12:50:57,373 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 12:50:57,654 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:50:57,655 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:50:57,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 704 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 12:50:57,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:50:57,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:50:57,733 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:50:57,733 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1290662621] [2020-07-21 12:50:57,733 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:50:57,733 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 12:50:57,734 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500758290] [2020-07-21 12:50:57,735 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 12:50:57,736 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:50:57,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 12:50:57,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-21 12:50:57,737 INFO L87 Difference]: Start difference. First operand 194 states and 219 transitions. Second operand 6 states. [2020-07-21 12:50:57,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:50:57,961 INFO L93 Difference]: Finished difference Result 201 states and 227 transitions. [2020-07-21 12:50:57,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 12:50:57,962 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 78 [2020-07-21 12:50:57,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:50:57,967 INFO L225 Difference]: With dead ends: 201 [2020-07-21 12:50:57,967 INFO L226 Difference]: Without dead ends: 198 [2020-07-21 12:50:57,968 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-21 12:50:57,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2020-07-21 12:50:58,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 194. [2020-07-21 12:50:58,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2020-07-21 12:50:58,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 218 transitions. [2020-07-21 12:50:58,004 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 218 transitions. Word has length 78 [2020-07-21 12:50:58,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:50:58,005 INFO L479 AbstractCegarLoop]: Abstraction has 194 states and 218 transitions. [2020-07-21 12:50:58,005 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 12:50:58,005 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 218 transitions. [2020-07-21 12:50:58,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-07-21 12:50:58,009 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:50:58,009 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:50:58,214 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:50:58,215 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:50:58,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:50:58,216 INFO L82 PathProgramCache]: Analyzing trace with hash 1289424341, now seen corresponding path program 1 times [2020-07-21 12:50:58,216 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:50:58,217 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [967202984] [2020-07-21 12:50:58,217 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 12:50:58,443 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:50:58,443 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:50:58,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 744 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 12:50:58,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:50:58,483 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-21 12:50:58,484 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:50:58,484 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [967202984] [2020-07-21 12:50:58,484 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:50:58,484 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 12:50:58,485 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045833534] [2020-07-21 12:50:58,485 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 12:50:58,486 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:50:58,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 12:50:58,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-21 12:50:58,486 INFO L87 Difference]: Start difference. First operand 194 states and 218 transitions. Second operand 6 states. [2020-07-21 12:50:58,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:50:58,538 INFO L93 Difference]: Finished difference Result 371 states and 426 transitions. [2020-07-21 12:50:58,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 12:50:58,538 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 94 [2020-07-21 12:50:58,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:50:58,542 INFO L225 Difference]: With dead ends: 371 [2020-07-21 12:50:58,543 INFO L226 Difference]: Without dead ends: 201 [2020-07-21 12:50:58,544 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-21 12:50:58,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2020-07-21 12:50:58,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 199. [2020-07-21 12:50:58,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 199 states. [2020-07-21 12:50:58,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 223 transitions. [2020-07-21 12:50:58,571 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 223 transitions. Word has length 94 [2020-07-21 12:50:58,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:50:58,572 INFO L479 AbstractCegarLoop]: Abstraction has 199 states and 223 transitions. [2020-07-21 12:50:58,572 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 12:50:58,574 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 223 transitions. [2020-07-21 12:50:58,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-07-21 12:50:58,582 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:50:58,583 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:50:58,797 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:50:58,798 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:50:58,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:50:58,799 INFO L82 PathProgramCache]: Analyzing trace with hash -2112056617, now seen corresponding path program 1 times [2020-07-21 12:50:58,800 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:50:58,800 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1777807636] [2020-07-21 12:50:58,801 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 12:50:59,042 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:50:59,042 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:50:59,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 745 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-21 12:50:59,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:50:59,098 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-21 12:50:59,098 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:50:59,098 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1777807636] [2020-07-21 12:50:59,098 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:50:59,098 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 12:50:59,099 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65521933] [2020-07-21 12:50:59,099 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 12:50:59,099 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:50:59,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 12:50:59,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 12:50:59,100 INFO L87 Difference]: Start difference. First operand 199 states and 223 transitions. Second operand 5 states. [2020-07-21 12:50:59,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:50:59,145 INFO L93 Difference]: Finished difference Result 381 states and 437 transitions. [2020-07-21 12:50:59,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 12:50:59,148 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 94 [2020-07-21 12:50:59,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:50:59,151 INFO L225 Difference]: With dead ends: 381 [2020-07-21 12:50:59,151 INFO L226 Difference]: Without dead ends: 206 [2020-07-21 12:50:59,152 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 12:50:59,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2020-07-21 12:50:59,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 203. [2020-07-21 12:50:59,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2020-07-21 12:50:59,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 227 transitions. [2020-07-21 12:50:59,178 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 227 transitions. Word has length 94 [2020-07-21 12:50:59,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:50:59,178 INFO L479 AbstractCegarLoop]: Abstraction has 203 states and 227 transitions. [2020-07-21 12:50:59,179 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 12:50:59,179 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 227 transitions. [2020-07-21 12:50:59,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-07-21 12:50:59,182 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:50:59,182 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:50:59,396 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:50:59,397 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:50:59,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:50:59,398 INFO L82 PathProgramCache]: Analyzing trace with hash -2119815976, now seen corresponding path program 1 times [2020-07-21 12:50:59,398 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:50:59,399 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [725329447] [2020-07-21 12:50:59,399 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 12:50:59,639 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:50:59,639 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:50:59,642 INFO L263 TraceCheckSpWp]: Trace formula consists of 745 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-21 12:50:59,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:50:59,671 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-21 12:50:59,671 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:50:59,671 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [725329447] [2020-07-21 12:50:59,672 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:50:59,672 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 12:50:59,672 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69993810] [2020-07-21 12:50:59,672 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 12:50:59,673 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:50:59,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 12:50:59,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:50:59,673 INFO L87 Difference]: Start difference. First operand 203 states and 227 transitions. Second operand 3 states. [2020-07-21 12:50:59,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:50:59,739 INFO L93 Difference]: Finished difference Result 519 states and 607 transitions. [2020-07-21 12:50:59,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 12:50:59,742 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 94 [2020-07-21 12:50:59,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:50:59,745 INFO L225 Difference]: With dead ends: 519 [2020-07-21 12:50:59,745 INFO L226 Difference]: Without dead ends: 340 [2020-07-21 12:50:59,749 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 91 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:50:59,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2020-07-21 12:50:59,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 337. [2020-07-21 12:50:59,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 337 states. [2020-07-21 12:50:59,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 388 transitions. [2020-07-21 12:50:59,779 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 388 transitions. Word has length 94 [2020-07-21 12:50:59,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:50:59,779 INFO L479 AbstractCegarLoop]: Abstraction has 337 states and 388 transitions. [2020-07-21 12:50:59,779 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 12:50:59,780 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 388 transitions. [2020-07-21 12:50:59,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-07-21 12:50:59,781 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:50:59,782 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:50:59,994 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:50:59,995 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:50:59,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:50:59,996 INFO L82 PathProgramCache]: Analyzing trace with hash 407163890, now seen corresponding path program 1 times [2020-07-21 12:50:59,996 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:50:59,997 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1591725247] [2020-07-21 12:50:59,997 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 12:51:00,230 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:51:00,230 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:51:00,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 754 conjuncts, 23 conjunts are in the unsatisfiable core [2020-07-21 12:51:00,237 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:51:00,285 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-21 12:51:00,285 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:51:00,286 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1591725247] [2020-07-21 12:51:00,286 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:51:00,286 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 12:51:00,286 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55302489] [2020-07-21 12:51:00,287 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 12:51:00,287 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:51:00,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 12:51:00,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-21 12:51:00,288 INFO L87 Difference]: Start difference. First operand 337 states and 388 transitions. Second operand 6 states. [2020-07-21 12:51:00,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:51:00,568 INFO L93 Difference]: Finished difference Result 944 states and 1124 transitions. [2020-07-21 12:51:00,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 12:51:00,568 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 98 [2020-07-21 12:51:00,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:51:00,580 INFO L225 Difference]: With dead ends: 944 [2020-07-21 12:51:00,581 INFO L226 Difference]: Without dead ends: 631 [2020-07-21 12:51:00,584 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-21 12:51:00,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2020-07-21 12:51:00,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 623. [2020-07-21 12:51:00,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 623 states. [2020-07-21 12:51:00,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 623 states to 623 states and 720 transitions. [2020-07-21 12:51:00,638 INFO L78 Accepts]: Start accepts. Automaton has 623 states and 720 transitions. Word has length 98 [2020-07-21 12:51:00,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:51:00,640 INFO L479 AbstractCegarLoop]: Abstraction has 623 states and 720 transitions. [2020-07-21 12:51:00,640 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 12:51:00,640 INFO L276 IsEmpty]: Start isEmpty. Operand 623 states and 720 transitions. [2020-07-21 12:51:00,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-07-21 12:51:00,646 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:51:00,646 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:51:00,860 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:51:00,861 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:51:00,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:51:00,862 INFO L82 PathProgramCache]: Analyzing trace with hash 469491758, now seen corresponding path program 1 times [2020-07-21 12:51:00,862 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:51:00,863 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [167119264] [2020-07-21 12:51:00,863 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 12:51:01,143 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:51:01,143 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:51:01,148 INFO L263 TraceCheckSpWp]: Trace formula consists of 764 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-21 12:51:01,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:51:01,225 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:51:01,226 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:51:01,226 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [167119264] [2020-07-21 12:51:01,226 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:51:01,226 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-21 12:51:01,227 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876635464] [2020-07-21 12:51:01,227 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 12:51:01,227 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:51:01,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 12:51:01,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-21 12:51:01,229 INFO L87 Difference]: Start difference. First operand 623 states and 720 transitions. Second operand 8 states. [2020-07-21 12:51:01,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:51:01,793 INFO L93 Difference]: Finished difference Result 1209 states and 1406 transitions. [2020-07-21 12:51:01,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 12:51:01,795 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 102 [2020-07-21 12:51:01,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:51:01,800 INFO L225 Difference]: With dead ends: 1209 [2020-07-21 12:51:01,800 INFO L226 Difference]: Without dead ends: 610 [2020-07-21 12:51:01,802 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 94 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-21 12:51:01,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2020-07-21 12:51:01,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 610. [2020-07-21 12:51:01,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 610 states. [2020-07-21 12:51:01,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 610 states to 610 states and 697 transitions. [2020-07-21 12:51:01,835 INFO L78 Accepts]: Start accepts. Automaton has 610 states and 697 transitions. Word has length 102 [2020-07-21 12:51:01,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:51:01,836 INFO L479 AbstractCegarLoop]: Abstraction has 610 states and 697 transitions. [2020-07-21 12:51:01,836 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 12:51:01,836 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states and 697 transitions. [2020-07-21 12:51:01,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-07-21 12:51:01,839 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:51:01,840 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:51:02,054 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:51:02,055 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:51:02,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:51:02,056 INFO L82 PathProgramCache]: Analyzing trace with hash -668172849, now seen corresponding path program 1 times [2020-07-21 12:51:02,056 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:51:02,057 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2133976413] [2020-07-21 12:51:02,057 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 12:51:02,329 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:51:02,329 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:51:02,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 883 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 12:51:02,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:51:02,389 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-21 12:51:02,389 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:51:02,389 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2133976413] [2020-07-21 12:51:02,390 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:51:02,390 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 12:51:02,390 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089526637] [2020-07-21 12:51:02,391 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 12:51:02,391 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:51:02,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 12:51:02,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-21 12:51:02,392 INFO L87 Difference]: Start difference. First operand 610 states and 697 transitions. Second operand 5 states. [2020-07-21 12:51:03,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:51:03,231 INFO L93 Difference]: Finished difference Result 1538 states and 1844 transitions. [2020-07-21 12:51:03,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 12:51:03,231 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 155 [2020-07-21 12:51:03,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:51:03,238 INFO L225 Difference]: With dead ends: 1538 [2020-07-21 12:51:03,239 INFO L226 Difference]: Without dead ends: 952 [2020-07-21 12:51:03,241 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 12:51:03,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 952 states. [2020-07-21 12:51:03,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 952 to 871. [2020-07-21 12:51:03,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 871 states. [2020-07-21 12:51:03,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 871 states to 871 states and 1002 transitions. [2020-07-21 12:51:03,294 INFO L78 Accepts]: Start accepts. Automaton has 871 states and 1002 transitions. Word has length 155 [2020-07-21 12:51:03,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:51:03,294 INFO L479 AbstractCegarLoop]: Abstraction has 871 states and 1002 transitions. [2020-07-21 12:51:03,294 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 12:51:03,294 INFO L276 IsEmpty]: Start isEmpty. Operand 871 states and 1002 transitions. [2020-07-21 12:51:03,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-07-21 12:51:03,298 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:51:03,298 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:51:03,511 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:51:03,512 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:51:03,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:51:03,513 INFO L82 PathProgramCache]: Analyzing trace with hash 1698521745, now seen corresponding path program 1 times [2020-07-21 12:51:03,513 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:51:03,513 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1396095971] [2020-07-21 12:51:03,514 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 12:51:03,814 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:51:03,814 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:51:03,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 885 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-21 12:51:03,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:51:03,974 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-21 12:51:03,974 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:51:03,975 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1396095971] [2020-07-21 12:51:03,975 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:51:03,975 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-21 12:51:03,975 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531257910] [2020-07-21 12:51:03,975 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-21 12:51:03,976 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:51:03,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-21 12:51:03,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-07-21 12:51:03,976 INFO L87 Difference]: Start difference. First operand 871 states and 1002 transitions. Second operand 9 states. [2020-07-21 12:51:05,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:51:05,444 INFO L93 Difference]: Finished difference Result 2368 states and 2952 transitions. [2020-07-21 12:51:05,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-21 12:51:05,445 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 155 [2020-07-21 12:51:05,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:51:05,462 INFO L225 Difference]: With dead ends: 2368 [2020-07-21 12:51:05,462 INFO L226 Difference]: Without dead ends: 1521 [2020-07-21 12:51:05,471 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2020-07-21 12:51:05,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1521 states. [2020-07-21 12:51:05,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1521 to 1225. [2020-07-21 12:51:05,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1225 states. [2020-07-21 12:51:05,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1225 states to 1225 states and 1423 transitions. [2020-07-21 12:51:05,600 INFO L78 Accepts]: Start accepts. Automaton has 1225 states and 1423 transitions. Word has length 155 [2020-07-21 12:51:05,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:51:05,601 INFO L479 AbstractCegarLoop]: Abstraction has 1225 states and 1423 transitions. [2020-07-21 12:51:05,601 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-21 12:51:05,602 INFO L276 IsEmpty]: Start isEmpty. Operand 1225 states and 1423 transitions. [2020-07-21 12:51:05,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-07-21 12:51:05,607 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:51:05,608 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:51:05,848 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:51:05,849 INFO L427 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:51:05,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:51:05,849 INFO L82 PathProgramCache]: Analyzing trace with hash 1973281359, now seen corresponding path program 1 times [2020-07-21 12:51:05,850 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:51:05,850 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1277792664] [2020-07-21 12:51:05,851 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 12:51:06,224 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:51:06,224 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:51:06,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 886 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 12:51:06,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:51:06,279 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-07-21 12:51:06,280 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:51:06,280 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1277792664] [2020-07-21 12:51:06,280 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:51:06,280 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 12:51:06,281 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636685027] [2020-07-21 12:51:06,281 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 12:51:06,281 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:51:06,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 12:51:06,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-21 12:51:06,282 INFO L87 Difference]: Start difference. First operand 1225 states and 1423 transitions. Second operand 6 states. [2020-07-21 12:51:06,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:51:06,333 INFO L93 Difference]: Finished difference Result 1695 states and 1972 transitions. [2020-07-21 12:51:06,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 12:51:06,334 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 155 [2020-07-21 12:51:06,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:51:06,335 INFO L225 Difference]: With dead ends: 1695 [2020-07-21 12:51:06,335 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 12:51:06,340 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-21 12:51:06,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 12:51:06,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 12:51:06,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 12:51:06,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 12:51:06,341 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 155 [2020-07-21 12:51:06,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:51:06,341 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 12:51:06,341 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 12:51:06,342 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 12:51:06,342 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 12:51:06,548 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:51:06,552 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 12:51:07,825 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 19 [2020-07-21 12:51:08,167 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 29 [2020-07-21 12:51:08,505 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 39 [2020-07-21 12:51:08,676 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 31 [2020-07-21 12:51:08,834 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 23 [2020-07-21 12:51:09,135 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 36 [2020-07-21 12:51:09,321 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 26 [2020-07-21 12:51:09,454 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 26 [2020-07-21 12:51:09,701 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 32 [2020-07-21 12:51:10,017 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 31 [2020-07-21 12:51:10,214 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 21 [2020-07-21 12:51:10,453 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 21 [2020-07-21 12:51:10,767 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 24 [2020-07-21 12:51:11,119 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 37 [2020-07-21 12:51:11,263 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 28 [2020-07-21 12:51:11,530 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 22 [2020-07-21 12:51:11,828 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 31 [2020-07-21 12:51:12,033 INFO L268 CegarLoopResult]: For program point L190(lines 190 194) no Hoare annotation was computed. [2020-07-21 12:51:12,033 INFO L268 CegarLoopResult]: For program point L190-1(lines 190 194) no Hoare annotation was computed. [2020-07-21 12:51:12,034 INFO L268 CegarLoopResult]: For program point L185(line 185) no Hoare annotation was computed. [2020-07-21 12:51:12,034 INFO L268 CegarLoopResult]: For program point L184-2(lines 184 205) no Hoare annotation was computed. [2020-07-21 12:51:12,034 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeFINAL(lines 159 214) no Hoare annotation was computed. [2020-07-21 12:51:12,034 INFO L268 CegarLoopResult]: For program point L206(lines 183 207) no Hoare annotation was computed. [2020-07-21 12:51:12,034 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeEXIT(lines 159 214) no Hoare annotation was computed. [2020-07-21 12:51:12,034 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeENTRY(lines 159 214) no Hoare annotation was computed. [2020-07-21 12:51:12,034 INFO L268 CegarLoopResult]: For program point L247(lines 247 251) no Hoare annotation was computed. [2020-07-21 12:51:12,035 INFO L268 CegarLoopResult]: For program point L247-1(lines 247 251) no Hoare annotation was computed. [2020-07-21 12:51:12,035 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetFINAL(lines 215 274) no Hoare annotation was computed. [2020-07-21 12:51:12,035 INFO L268 CegarLoopResult]: For program point L242(line 242) no Hoare annotation was computed. [2020-07-21 12:51:12,035 INFO L268 CegarLoopResult]: For program point L241-2(lines 241 266) no Hoare annotation was computed. [2020-07-21 12:51:12,035 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetENTRY(lines 215 274) no Hoare annotation was computed. [2020-07-21 12:51:12,035 INFO L268 CegarLoopResult]: For program point L267(lines 240 268) no Hoare annotation was computed. [2020-07-21 12:51:12,035 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetEXIT(lines 215 274) no Hoare annotation was computed. [2020-07-21 12:51:12,036 INFO L268 CegarLoopResult]: For program point L260(line 260) no Hoare annotation was computed. [2020-07-21 12:51:12,036 INFO L268 CegarLoopResult]: For program point L260-1(line 260) no Hoare annotation was computed. [2020-07-21 12:51:12,036 INFO L271 CegarLoopResult]: At program point select_helpersFINAL(lines 90 96) the Hoare annotation is: true [2020-07-21 12:51:12,036 INFO L268 CegarLoopResult]: For program point select_helpersEXIT(lines 90 96) no Hoare annotation was computed. [2020-07-21 12:51:12,036 INFO L268 CegarLoopResult]: For program point valid_productEXIT(lines 97 105) no Hoare annotation was computed. [2020-07-21 12:51:12,037 INFO L271 CegarLoopResult]: At program point valid_productENTRY(lines 97 105) the Hoare annotation is: true [2020-07-21 12:51:12,037 INFO L268 CegarLoopResult]: For program point valid_productFINAL(lines 97 105) no Hoare annotation was computed. [2020-07-21 12:51:12,037 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 836 858) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 1 |old(~waterLevel~0)|))) [2020-07-21 12:51:12,037 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 836 858) no Hoare annotation was computed. [2020-07-21 12:51:12,037 INFO L264 CegarLoopResult]: At program point L848(line 848) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 1 |old(~waterLevel~0)|))) [2020-07-21 12:51:12,037 INFO L264 CegarLoopResult]: At program point L848-1(line 848) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 1 |old(~waterLevel~0)|))) [2020-07-21 12:51:12,038 INFO L268 CegarLoopResult]: For program point L846(lines 846 853) no Hoare annotation was computed. [2020-07-21 12:51:12,038 INFO L268 CegarLoopResult]: For program point L846-1(lines 846 853) no Hoare annotation was computed. [2020-07-21 12:51:12,038 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 836 858) no Hoare annotation was computed. [2020-07-21 12:51:12,038 INFO L268 CegarLoopResult]: For program point L844(line 844) no Hoare annotation was computed. [2020-07-21 12:51:12,038 INFO L264 CegarLoopResult]: At program point L843(line 843) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 1 |old(~waterLevel~0)|))) [2020-07-21 12:51:12,038 INFO L264 CegarLoopResult]: At program point L842(line 842) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 1 |old(~waterLevel~0)|))) [2020-07-21 12:51:12,038 INFO L264 CegarLoopResult]: At program point L842-1(line 842) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 1 |old(~waterLevel~0)|))) [2020-07-21 12:51:12,039 INFO L268 CegarLoopResult]: For program point L801(line 801) no Hoare annotation was computed. [2020-07-21 12:51:12,039 INFO L268 CegarLoopResult]: For program point L800(line 800) no Hoare annotation was computed. [2020-07-21 12:51:12,039 INFO L268 CegarLoopResult]: For program point Specification2EXIT(lines 795 818) no Hoare annotation was computed. [2020-07-21 12:51:12,039 INFO L268 CegarLoopResult]: For program point Specification2ENTRY(lines 795 818) no Hoare annotation was computed. [2020-07-21 12:51:12,039 INFO L268 CegarLoopResult]: For program point Specification2FINAL(lines 795 818) no Hoare annotation was computed. [2020-07-21 12:51:12,039 INFO L268 CegarLoopResult]: For program point L813(line 813) no Hoare annotation was computed. [2020-07-21 12:51:12,039 INFO L268 CegarLoopResult]: For program point L812(line 812) no Hoare annotation was computed. [2020-07-21 12:51:12,040 INFO L268 CegarLoopResult]: For program point L811(line 811) no Hoare annotation was computed. [2020-07-21 12:51:12,040 INFO L268 CegarLoopResult]: For program point L810(line 810) no Hoare annotation was computed. [2020-07-21 12:51:12,040 INFO L268 CegarLoopResult]: For program point L809(line 809) no Hoare annotation was computed. [2020-07-21 12:51:12,040 INFO L268 CegarLoopResult]: For program point L808(line 808) no Hoare annotation was computed. [2020-07-21 12:51:12,040 INFO L268 CegarLoopResult]: For program point L807(line 807) no Hoare annotation was computed. [2020-07-21 12:51:12,040 INFO L268 CegarLoopResult]: For program point L806(line 806) no Hoare annotation was computed. [2020-07-21 12:51:12,040 INFO L268 CegarLoopResult]: For program point L805(line 805) no Hoare annotation was computed. [2020-07-21 12:51:12,040 INFO L268 CegarLoopResult]: For program point L804(line 804) no Hoare annotation was computed. [2020-07-21 12:51:12,041 INFO L268 CegarLoopResult]: For program point L803(line 803) no Hoare annotation was computed. [2020-07-21 12:51:12,041 INFO L268 CegarLoopResult]: For program point L802(line 802) no Hoare annotation was computed. [2020-07-21 12:51:12,041 INFO L268 CegarLoopResult]: For program point isPumpRunningEXIT(lines 680 688) no Hoare annotation was computed. [2020-07-21 12:51:12,041 INFO L271 CegarLoopResult]: At program point isPumpRunningENTRY(lines 680 688) the Hoare annotation is: true [2020-07-21 12:51:12,041 INFO L268 CegarLoopResult]: For program point isPumpRunningFINAL(lines 680 688) no Hoare annotation was computed. [2020-07-21 12:51:12,041 INFO L268 CegarLoopResult]: For program point L753(lines 753 757) no Hoare annotation was computed. [2020-07-21 12:51:12,041 INFO L271 CegarLoopResult]: At program point L751(line 751) the Hoare annotation is: true [2020-07-21 12:51:12,041 INFO L268 CegarLoopResult]: For program point L753-2(lines 753 757) no Hoare annotation was computed. [2020-07-21 12:51:12,042 INFO L268 CegarLoopResult]: For program point L751-1(line 751) no Hoare annotation was computed. [2020-07-21 12:51:12,042 INFO L271 CegarLoopResult]: At program point isLowWaterLevelENTRY(lines 744 762) the Hoare annotation is: true [2020-07-21 12:51:12,042 INFO L268 CegarLoopResult]: For program point isLowWaterLevelEXIT(lines 744 762) no Hoare annotation was computed. [2020-07-21 12:51:12,042 INFO L268 CegarLoopResult]: For program point isLowWaterLevelFINAL(lines 744 762) no Hoare annotation was computed. [2020-07-21 12:51:12,042 INFO L268 CegarLoopResult]: For program point L696(lines 696 704) no Hoare annotation was computed. [2020-07-21 12:51:12,042 INFO L268 CegarLoopResult]: For program point L696-2(lines 696 704) no Hoare annotation was computed. [2020-07-21 12:51:12,042 INFO L268 CegarLoopResult]: For program point L719(line 719) no Hoare annotation was computed. [2020-07-21 12:51:12,042 INFO L268 CegarLoopResult]: For program point printPumpFINAL(lines 689 724) no Hoare annotation was computed. [2020-07-21 12:51:12,042 INFO L268 CegarLoopResult]: For program point L719-1(line 719) no Hoare annotation was computed. [2020-07-21 12:51:12,042 INFO L268 CegarLoopResult]: For program point printPumpENTRY(lines 689 724) no Hoare annotation was computed. [2020-07-21 12:51:12,043 INFO L268 CegarLoopResult]: For program point L708(lines 708 716) no Hoare annotation was computed. [2020-07-21 12:51:12,043 INFO L268 CegarLoopResult]: For program point printPumpEXIT(lines 689 724) no Hoare annotation was computed. [2020-07-21 12:51:12,043 INFO L268 CegarLoopResult]: For program point L708-2(lines 708 716) no Hoare annotation was computed. [2020-07-21 12:51:12,043 INFO L268 CegarLoopResult]: For program point select_featuresEXIT(lines 83 89) no Hoare annotation was computed. [2020-07-21 12:51:12,043 INFO L271 CegarLoopResult]: At program point select_featuresFINAL(lines 83 89) the Hoare annotation is: true [2020-07-21 12:51:12,043 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setENTRY(lines 113 158) no Hoare annotation was computed. [2020-07-21 12:51:12,043 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setEXIT(lines 113 158) no Hoare annotation was computed. [2020-07-21 12:51:12,043 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setFINAL(lines 113 158) no Hoare annotation was computed. [2020-07-21 12:51:12,044 INFO L268 CegarLoopResult]: For program point L446(lines 446 453) no Hoare annotation was computed. [2020-07-21 12:51:12,044 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeFINAL(lines 426 471) no Hoare annotation was computed. [2020-07-21 12:51:12,044 INFO L268 CegarLoopResult]: For program point L440(lines 440 460) no Hoare annotation was computed. [2020-07-21 12:51:12,044 INFO L268 CegarLoopResult]: For program point L440-1(lines 440 460) no Hoare annotation was computed. [2020-07-21 12:51:12,044 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeENTRY(lines 426 471) no Hoare annotation was computed. [2020-07-21 12:51:12,044 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeEXIT(lines 426 471) no Hoare annotation was computed. [2020-07-21 12:51:12,044 INFO L264 CegarLoopResult]: At program point runTestENTRY(lines 826 835) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 1 |old(~waterLevel~0)|))) [2020-07-21 12:51:12,044 INFO L268 CegarLoopResult]: For program point runTestEXIT(lines 826 835) no Hoare annotation was computed. [2020-07-21 12:51:12,045 INFO L268 CegarLoopResult]: For program point runTestFINAL(lines 826 835) no Hoare annotation was computed. [2020-07-21 12:51:12,045 INFO L268 CegarLoopResult]: For program point L674-1(line 674) no Hoare annotation was computed. [2020-07-21 12:51:12,045 INFO L271 CegarLoopResult]: At program point isMethaneAlarmENTRY(lines 669 679) the Hoare annotation is: true [2020-07-21 12:51:12,045 INFO L268 CegarLoopResult]: For program point isMethaneAlarmEXIT(lines 669 679) no Hoare annotation was computed. [2020-07-21 12:51:12,045 INFO L268 CegarLoopResult]: For program point isMethaneAlarmFINAL(lines 669 679) no Hoare annotation was computed. [2020-07-21 12:51:12,045 INFO L271 CegarLoopResult]: At program point L674(line 674) the Hoare annotation is: true [2020-07-21 12:51:12,045 INFO L264 CegarLoopResult]: At program point deactivatePumpENTRY(lines 661 668) the Hoare annotation is: (let ((.cse0 (= 0 |old(~pumpRunning~0)|)) (.cse1 (not (<= 1 ~waterLevel~0))) (.cse2 (not (<= 1 ~systemActive~0))) (.cse3 (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (and (or .cse0 .cse1 .cse2 (not (<= 1 ~methaneLevelCritical~0)) .cse3) (or .cse0 .cse1 .cse2 .cse3 (not (= 0 ~methaneLevelCritical~0))))) [2020-07-21 12:51:12,046 INFO L268 CegarLoopResult]: For program point deactivatePumpEXIT(lines 661 668) no Hoare annotation was computed. [2020-07-21 12:51:12,046 INFO L268 CegarLoopResult]: For program point deactivatePumpFINAL(lines 661 668) no Hoare annotation was computed. [2020-07-21 12:51:12,046 INFO L268 CegarLoopResult]: For program point L944(lines 944 950) no Hoare annotation was computed. [2020-07-21 12:51:12,046 INFO L268 CegarLoopResult]: For program point isHighWaterSensorDryEXIT(lines 940 953) no Hoare annotation was computed. [2020-07-21 12:51:12,046 INFO L271 CegarLoopResult]: At program point isHighWaterSensorDryENTRY(lines 940 953) the Hoare annotation is: true [2020-07-21 12:51:12,046 INFO L268 CegarLoopResult]: For program point isHighWaterSensorDryFINAL(lines 940 953) no Hoare annotation was computed. [2020-07-21 12:51:12,046 INFO L268 CegarLoopResult]: For program point processEnvironmentEXIT(lines 610 634) no Hoare annotation was computed. [2020-07-21 12:51:12,046 INFO L264 CegarLoopResult]: At program point L629(line 629) the Hoare annotation is: (let ((.cse3 (not (<= 1 ~methaneLevelCritical~0))) (.cse4 (= 0 ~pumpRunning~0)) (.cse0 (= 0 |old(~pumpRunning~0)|)) (.cse1 (not (<= 1 ~waterLevel~0))) (.cse2 (not (<= 1 ~systemActive~0))) (.cse5 (not (= 0 ~methaneLevelCritical~0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse2 .cse3 .cse4) (or .cse1 .cse2 .cse5 .cse4) (or .cse0 .cse1 .cse2 .cse5))) [2020-07-21 12:51:12,047 INFO L268 CegarLoopResult]: For program point L629-1(lines 610 634) no Hoare annotation was computed. [2020-07-21 12:51:12,047 INFO L264 CegarLoopResult]: At program point processEnvironmentENTRY(lines 610 634) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse2 (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (and (or .cse0 .cse1 .cse2 (not (= 0 ~methaneLevelCritical~0))) (or .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0)) .cse2))) [2020-07-21 12:51:12,047 INFO L264 CegarLoopResult]: At program point L624(line 624) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (= 0 ~methaneLevelCritical~0))) (or .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0))))) [2020-07-21 12:51:12,047 INFO L264 CegarLoopResult]: At program point L620(line 620) the Hoare annotation is: (let ((.cse2 (not (<= 1 ~methaneLevelCritical~0))) (.cse4 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse5 (not (= 0 ~methaneLevelCritical~0))) (.cse3 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 processEnvironment_~tmp~6)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse4 .cse5) (or .cse0 .cse1 .cse2 .cse4) (or .cse0 .cse1 .cse5 .cse3))) [2020-07-21 12:51:12,047 INFO L268 CegarLoopResult]: For program point L618(lines 618 626) no Hoare annotation was computed. [2020-07-21 12:51:12,047 INFO L264 CegarLoopResult]: At program point L616(line 616) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse3 (not (= 0 ~methaneLevelCritical~0))) (.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse4 (not (<= 1 ~methaneLevelCritical~0))) (.cse5 (not (= 0 |old(~pumpRunning~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse4 .cse2) (or .cse0 .cse1 .cse5 .cse3) (or .cse0 .cse1 .cse4 .cse5))) [2020-07-21 12:51:12,048 INFO L268 CegarLoopResult]: For program point L616-1(line 616) no Hoare annotation was computed. [2020-07-21 12:51:12,048 INFO L268 CegarLoopResult]: For program point L614(lines 614 631) no Hoare annotation was computed. [2020-07-21 12:51:12,048 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__baseEXIT(lines 576 582) no Hoare annotation was computed. [2020-07-21 12:51:12,048 INFO L271 CegarLoopResult]: At program point processEnvironment__wrappee__baseFINAL(lines 576 582) the Hoare annotation is: true [2020-07-21 12:51:12,048 INFO L264 CegarLoopResult]: At program point testENTRY(lines 477 540) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 1 |old(~waterLevel~0)|))) [2020-07-21 12:51:12,048 INFO L268 CegarLoopResult]: For program point testFINAL(lines 477 540) no Hoare annotation was computed. [2020-07-21 12:51:12,048 INFO L264 CegarLoopResult]: At program point L533(lines 486 534) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 ~systemActive~0))) [2020-07-21 12:51:12,049 INFO L268 CegarLoopResult]: For program point L523(lines 523 527) no Hoare annotation was computed. [2020-07-21 12:51:12,049 INFO L264 CegarLoopResult]: At program point L523-2(lines 517 528) the Hoare annotation is: (let ((.cse1 (<= 1 ~methaneLevelCritical~0)) (.cse4 (<= 1 ~waterLevel~0)) (.cse5 (= 0 ~pumpRunning~0)) (.cse3 (= 0 ~methaneLevelCritical~0)) (.cse0 (<= 2 ~waterLevel~0)) (.cse2 (<= test_~splverifierCounter~0 0))) (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (and .cse0 .cse1 .cse2) (and .cse3 .cse4 .cse5 .cse2) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and .cse1 .cse4 .cse5 .cse2) (and .cse3 .cse0 .cse2) (not (<= 1 |old(~waterLevel~0)|)))) [2020-07-21 12:51:12,049 INFO L268 CegarLoopResult]: For program point L488(lines 487 532) no Hoare annotation was computed. [2020-07-21 12:51:12,049 INFO L268 CegarLoopResult]: For program point L517(lines 517 528) no Hoare annotation was computed. [2020-07-21 12:51:12,049 INFO L264 CegarLoopResult]: At program point L509(line 509) the Hoare annotation is: (let ((.cse1 (<= 1 ~waterLevel~0)) (.cse2 (= 0 ~pumpRunning~0)) (.cse0 (= 0 ~methaneLevelCritical~0)) (.cse3 (<= test_~splverifierCounter~0 0))) (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (and .cse0 .cse1 .cse2 .cse3) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (<= 1 ~methaneLevelCritical~0) .cse1 .cse2 .cse3) (and .cse0 (<= 2 ~waterLevel~0) .cse3) (not (<= 1 |old(~waterLevel~0)|)))) [2020-07-21 12:51:12,049 INFO L268 CegarLoopResult]: For program point L507(lines 507 513) no Hoare annotation was computed. [2020-07-21 12:51:12,049 INFO L268 CegarLoopResult]: For program point L507-1(lines 507 513) no Hoare annotation was computed. [2020-07-21 12:51:12,050 INFO L264 CegarLoopResult]: At program point L499(line 499) the Hoare annotation is: (let ((.cse1 (<= 1 ~waterLevel~0)) (.cse2 (= 0 ~pumpRunning~0)) (.cse0 (= 0 ~methaneLevelCritical~0)) (.cse3 (<= test_~splverifierCounter~0 0))) (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (and .cse0 .cse1 .cse2 .cse3) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (<= 1 ~methaneLevelCritical~0) .cse1 .cse2 .cse3) (and .cse0 (<= 2 ~waterLevel~0) .cse3) (not (<= 1 |old(~waterLevel~0)|)))) [2020-07-21 12:51:12,050 INFO L264 CegarLoopResult]: At program point L530(lines 487 532) the Hoare annotation is: (let ((.cse1 (<= 1 ~waterLevel~0)) (.cse2 (= 0 ~pumpRunning~0)) (.cse0 (= 0 ~methaneLevelCritical~0)) (.cse3 (<= test_~splverifierCounter~0 0))) (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (and .cse0 .cse1 .cse2 .cse3) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (<= 1 ~methaneLevelCritical~0) .cse1 .cse2 .cse3) (and .cse0 (<= 2 ~waterLevel~0) .cse3) (not (<= 1 |old(~waterLevel~0)|)))) [2020-07-21 12:51:12,050 INFO L268 CegarLoopResult]: For program point L497(lines 497 503) no Hoare annotation was computed. [2020-07-21 12:51:12,050 INFO L268 CegarLoopResult]: For program point L497-1(lines 497 503) no Hoare annotation was computed. [2020-07-21 12:51:12,050 INFO L268 CegarLoopResult]: For program point L489(lines 489 493) no Hoare annotation was computed. [2020-07-21 12:51:12,050 INFO L268 CegarLoopResult]: For program point testEXIT(lines 477 540) no Hoare annotation was computed. [2020-07-21 12:51:12,050 INFO L268 CegarLoopResult]: For program point __utac__get_this_argENTRY(lines 380 425) no Hoare annotation was computed. [2020-07-21 12:51:12,050 INFO L268 CegarLoopResult]: For program point __utac__get_this_argEXIT(lines 380 425) no Hoare annotation was computed. [2020-07-21 12:51:12,050 INFO L268 CegarLoopResult]: For program point __utac__get_this_argFINAL(lines 380 425) no Hoare annotation was computed. [2020-07-21 12:51:12,051 INFO L268 CegarLoopResult]: For program point L400(lines 400 407) no Hoare annotation was computed. [2020-07-21 12:51:12,051 INFO L268 CegarLoopResult]: For program point L394(lines 394 414) no Hoare annotation was computed. [2020-07-21 12:51:12,051 INFO L268 CegarLoopResult]: For program point L394-1(lines 394 414) no Hoare annotation was computed. [2020-07-21 12:51:12,051 INFO L264 CegarLoopResult]: At program point activatePump__wrappee__lowWaterSensorENTRY(lines 635 642) the Hoare annotation is: (or (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= 0 ~methaneLevelCritical~0)) (= 0 ~pumpRunning~0) (not (<= 2 ~waterLevel~0))) [2020-07-21 12:51:12,051 INFO L268 CegarLoopResult]: For program point activatePump__wrappee__lowWaterSensorFINAL(lines 635 642) no Hoare annotation was computed. [2020-07-21 12:51:12,051 INFO L268 CegarLoopResult]: For program point activatePump__wrappee__lowWaterSensorEXIT(lines 635 642) no Hoare annotation was computed. [2020-07-21 12:51:12,051 INFO L268 CegarLoopResult]: For program point isLowWaterSensorDryFINAL(lines 954 962) no Hoare annotation was computed. [2020-07-21 12:51:12,051 INFO L271 CegarLoopResult]: At program point isLowWaterSensorDryENTRY(lines 954 962) the Hoare annotation is: true [2020-07-21 12:51:12,051 INFO L268 CegarLoopResult]: For program point isLowWaterSensorDryEXIT(lines 954 962) no Hoare annotation was computed. [2020-07-21 12:51:12,052 INFO L268 CegarLoopResult]: For program point printEnvironmentEXIT(lines 908 930) no Hoare annotation was computed. [2020-07-21 12:51:12,052 INFO L268 CegarLoopResult]: For program point printEnvironmentENTRY(lines 908 930) no Hoare annotation was computed. [2020-07-21 12:51:12,052 INFO L268 CegarLoopResult]: For program point printEnvironmentFINAL(lines 908 930) no Hoare annotation was computed. [2020-07-21 12:51:12,052 INFO L268 CegarLoopResult]: For program point L916(lines 916 924) no Hoare annotation was computed. [2020-07-21 12:51:12,052 INFO L268 CegarLoopResult]: For program point L916-2(lines 916 924) no Hoare annotation was computed. [2020-07-21 12:51:12,052 INFO L268 CegarLoopResult]: For program point select_oneENTRY(lines 73 82) no Hoare annotation was computed. [2020-07-21 12:51:12,052 INFO L268 CegarLoopResult]: For program point select_oneFINAL(lines 73 82) no Hoare annotation was computed. [2020-07-21 12:51:12,052 INFO L268 CegarLoopResult]: For program point select_oneEXIT(lines 73 82) no Hoare annotation was computed. [2020-07-21 12:51:12,052 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtENTRY(lines 277 379) no Hoare annotation was computed. [2020-07-21 12:51:12,052 INFO L268 CegarLoopResult]: For program point L347(lines 325 348) no Hoare annotation was computed. [2020-07-21 12:51:12,053 INFO L268 CegarLoopResult]: For program point L306(lines 306 322) no Hoare annotation was computed. [2020-07-21 12:51:12,053 INFO L268 CegarLoopResult]: For program point L366(lines 366 373) no Hoare annotation was computed. [2020-07-21 12:51:12,053 INFO L268 CegarLoopResult]: For program point L327(lines 326 346) no Hoare annotation was computed. [2020-07-21 12:51:12,053 INFO L268 CegarLoopResult]: For program point L358(line 358) no Hoare annotation was computed. [2020-07-21 12:51:12,053 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtFINAL(lines 277 379) no Hoare annotation was computed. [2020-07-21 12:51:12,053 INFO L268 CegarLoopResult]: For program point L358-1(line 358) no Hoare annotation was computed. [2020-07-21 12:51:12,053 INFO L268 CegarLoopResult]: For program point L323(lines 323 364) no Hoare annotation was computed. [2020-07-21 12:51:12,053 INFO L268 CegarLoopResult]: For program point L342(line 342) no Hoare annotation was computed. [2020-07-21 12:51:12,053 INFO L268 CegarLoopResult]: For program point L342-1(line 342) no Hoare annotation was computed. [2020-07-21 12:51:12,054 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtEXIT(lines 277 379) no Hoare annotation was computed. [2020-07-21 12:51:12,054 INFO L268 CegarLoopResult]: For program point L301(lines 301 305) no Hoare annotation was computed. [2020-07-21 12:51:12,054 INFO L268 CegarLoopResult]: For program point L365(lines 365 376) no Hoare annotation was computed. [2020-07-21 12:51:12,054 INFO L268 CegarLoopResult]: For program point L328(lines 328 332) no Hoare annotation was computed. [2020-07-21 12:51:12,054 INFO L268 CegarLoopResult]: For program point L326-2(lines 326 346) no Hoare annotation was computed. [2020-07-21 12:51:12,054 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 12:51:12,054 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= |old(~waterLevel~0)| ~waterLevel~0)) [2020-07-21 12:51:12,054 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 12:51:12,054 INFO L264 CegarLoopResult]: At program point L655(line 655) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (<= 2 ~waterLevel~0)))) (and (or .cse0 .cse1 (not (= 0 ~methaneLevelCritical~0)) (= 0 ~pumpRunning~0) .cse2) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1 .cse2))) [2020-07-21 12:51:12,055 INFO L268 CegarLoopResult]: For program point L655-1(lines 644 660) no Hoare annotation was computed. [2020-07-21 12:51:12,055 INFO L268 CegarLoopResult]: For program point activatePumpEXIT(lines 644 660) no Hoare annotation was computed. [2020-07-21 12:51:12,055 INFO L268 CegarLoopResult]: For program point L651(lines 651 657) no Hoare annotation was computed. [2020-07-21 12:51:12,055 INFO L264 CegarLoopResult]: At program point L649(line 649) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (= 0 ~pumpRunning~0)) (.cse3 (not (<= 2 ~waterLevel~0)))) (and (or .cse0 .cse1 (not (= 0 ~methaneLevelCritical~0)) .cse2 .cse3) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1 .cse2 .cse3))) [2020-07-21 12:51:12,055 INFO L264 CegarLoopResult]: At program point activatePumpENTRY(lines 644 660) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (= 0 ~pumpRunning~0)) (.cse3 (not (<= 2 ~waterLevel~0)))) (and (or .cse0 .cse1 (not (= 0 ~methaneLevelCritical~0)) .cse2 .cse3) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1 .cse2 .cse3))) [2020-07-21 12:51:12,055 INFO L268 CegarLoopResult]: For program point L649-1(line 649) no Hoare annotation was computed. [2020-07-21 12:51:12,055 INFO L268 CegarLoopResult]: For program point isHighWaterLevelEXIT(lines 725 743) no Hoare annotation was computed. [2020-07-21 12:51:12,055 INFO L268 CegarLoopResult]: For program point L734(lines 734 738) no Hoare annotation was computed. [2020-07-21 12:51:12,056 INFO L271 CegarLoopResult]: At program point L732(line 732) the Hoare annotation is: true [2020-07-21 12:51:12,056 INFO L268 CegarLoopResult]: For program point L734-2(lines 734 738) no Hoare annotation was computed. [2020-07-21 12:51:12,056 INFO L268 CegarLoopResult]: For program point L732-1(line 732) no Hoare annotation was computed. [2020-07-21 12:51:12,056 INFO L271 CegarLoopResult]: At program point isHighWaterLevelENTRY(lines 725 743) the Hoare annotation is: true [2020-07-21 12:51:12,056 INFO L268 CegarLoopResult]: For program point isHighWaterLevelFINAL(lines 725 743) no Hoare annotation was computed. [2020-07-21 12:51:12,056 INFO L268 CegarLoopResult]: For program point getWaterLevelENTRY(lines 931 939) no Hoare annotation was computed. [2020-07-21 12:51:12,056 INFO L268 CegarLoopResult]: For program point getWaterLevelFINAL(lines 931 939) no Hoare annotation was computed. [2020-07-21 12:51:12,056 INFO L268 CegarLoopResult]: For program point getWaterLevelEXIT(lines 931 939) no Hoare annotation was computed. [2020-07-21 12:51:12,057 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2020-07-21 12:51:12,057 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intENTRY(line -1) no Hoare annotation was computed. [2020-07-21 12:51:12,057 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intFINAL(line -1) no Hoare annotation was computed. [2020-07-21 12:51:12,057 INFO L264 CegarLoopResult]: At program point changeMethaneLevelENTRY(lines 887 898) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse3 (= 0 ~methaneLevelCritical~0)) (.cse4 (not (= |old(~methaneLevelCritical~0)| 0))) (.cse2 (not (= 0 ~pumpRunning~0)))) (and (or .cse0 .cse1 (<= 1 ~methaneLevelCritical~0) .cse2 (not (<= 1 |old(~methaneLevelCritical~0)|))) (or .cse1 .cse3 .cse4 (not (<= 2 ~waterLevel~0))) (or .cse0 .cse1 .cse3 .cse4 .cse2))) [2020-07-21 12:51:12,057 INFO L268 CegarLoopResult]: For program point L891-1(lines 887 898) no Hoare annotation was computed. [2020-07-21 12:51:12,057 INFO L268 CegarLoopResult]: For program point changeMethaneLevelEXIT(lines 887 898) no Hoare annotation was computed. [2020-07-21 12:51:12,057 INFO L271 CegarLoopResult]: At program point isMethaneLevelCriticalENTRY(lines 899 907) the Hoare annotation is: true [2020-07-21 12:51:12,057 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalFINAL(lines 899 907) no Hoare annotation was computed. [2020-07-21 12:51:12,057 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalEXIT(lines 899 907) no Hoare annotation was computed. [2020-07-21 12:51:12,058 INFO L264 CegarLoopResult]: At program point L565(line 565) the Hoare annotation is: (let ((.cse9 (= 0 ~pumpRunning~0)) (.cse10 (<= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse0 (not (<= |old(~waterLevel~0)| 1))) (.cse4 (<= ~waterLevel~0 1)) (.cse7 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)))) (.cse3 (not (= 0 ~methaneLevelCritical~0))) (.cse5 (not (<= 1 |old(~waterLevel~0)|))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse6 (not (<= 1 ~methaneLevelCritical~0))) (.cse11 (and .cse9 .cse10)) (.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse8 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse1 .cse6 .cse7 .cse8) (or .cse0 .cse1 .cse6 (and .cse9 .cse4 .cse10) .cse2 .cse5) (or .cse1 .cse3 .cse7 .cse8) (or .cse1 .cse11 .cse2 .cse3 .cse5) (or .cse1 .cse6 .cse11 .cse2 .cse8)))) [2020-07-21 12:51:12,058 INFO L264 CegarLoopResult]: At program point L563(lines 563 569) the Hoare annotation is: (let ((.cse6 (= 0 |old(~pumpRunning~0)|)) (.cse9 (<= |old(~waterLevel~0)| ~waterLevel~0)) (.cse11 (= 0 ~pumpRunning~0))) (let ((.cse4 (not (= 0 ~methaneLevelCritical~0))) (.cse7 (and (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse11)) (.cse0 (not (<= |old(~waterLevel~0)| 1))) (.cse2 (and .cse11 (<= ~waterLevel~0 1) .cse9)) (.cse5 (not (<= 1 |old(~waterLevel~0)|))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse10 (not (<= 1 ~methaneLevelCritical~0))) (.cse3 (not .cse6)) (.cse8 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse6 .cse1 .cse4 .cse7 .cse8) (or .cse1 .cse3 .cse4 .cse8 .cse9) (or .cse1 .cse10 .cse7 .cse8) (or .cse0 .cse1 .cse10 .cse2 .cse3 .cse5) (or .cse1 .cse10 .cse3 .cse8 .cse9)))) [2020-07-21 12:51:12,058 INFO L264 CegarLoopResult]: At program point timeShiftENTRY(lines 552 575) the Hoare annotation is: (let ((.cse10 (<= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse2 (not (<= 2 |old(~waterLevel~0)|))) (.cse3 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse10)) (.cse4 (not (<= |old(~waterLevel~0)| 1))) (.cse8 (not (<= 1 ~methaneLevelCritical~0))) (.cse6 (<= ~waterLevel~0 1)) (.cse0 (not (<= 1 ~systemActive~0))) (.cse9 (= 0 ~pumpRunning~0)) (.cse5 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= 0 ~methaneLevelCritical~0))) (.cse7 (not (<= 1 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse0 .cse5 .cse1 .cse6 .cse7) (or .cse0 .cse8 .cse2 .cse3) (or .cse4 .cse0 .cse8 (and .cse9 .cse6 .cse10) .cse5 .cse7) (or .cse0 (and .cse9 .cse10) .cse5 .cse1 .cse7)))) [2020-07-21 12:51:12,058 INFO L264 CegarLoopResult]: At program point L558(line 558) the Hoare annotation is: (let ((.cse2 (not (= 0 ~methaneLevelCritical~0))) (.cse4 (not (<= 2 |old(~waterLevel~0)|))) (.cse5 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= |old(~waterLevel~0)| ~waterLevel~0))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse6 (not (<= 1 ~methaneLevelCritical~0))) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (not (<= 1 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse2 .cse4 .cse5) (or .cse0 .cse6 .cse4 .cse5) (or .cse0 .cse6 .cse1 .cse3))) [2020-07-21 12:51:12,059 INFO L268 CegarLoopResult]: For program point L556(lines 555 574) no Hoare annotation was computed. [2020-07-21 12:51:12,059 INFO L268 CegarLoopResult]: For program point timeShiftEXIT(lines 552 575) no Hoare annotation was computed. [2020-07-21 12:51:12,059 INFO L268 CegarLoopResult]: For program point timeShiftFINAL(lines 552 575) no Hoare annotation was computed. [2020-07-21 12:51:12,059 INFO L268 CegarLoopResult]: For program point cleanupEXIT(lines 765 794) no Hoare annotation was computed. [2020-07-21 12:51:12,059 INFO L271 CegarLoopResult]: At program point cleanupENTRY(lines 765 794) the Hoare annotation is: true [2020-07-21 12:51:12,059 INFO L271 CegarLoopResult]: At program point L790(lines 765 794) the Hoare annotation is: true [2020-07-21 12:51:12,059 INFO L268 CegarLoopResult]: For program point L786(line 786) no Hoare annotation was computed. [2020-07-21 12:51:12,059 INFO L268 CegarLoopResult]: For program point L779(lines 779 783) no Hoare annotation was computed. [2020-07-21 12:51:12,060 INFO L271 CegarLoopResult]: At program point L779-1(lines 779 783) the Hoare annotation is: true [2020-07-21 12:51:12,060 INFO L268 CegarLoopResult]: For program point L776(line 776) no Hoare annotation was computed. [2020-07-21 12:51:12,060 INFO L271 CegarLoopResult]: At program point L775-2(lines 775 789) the Hoare annotation is: true [2020-07-21 12:51:12,060 INFO L271 CegarLoopResult]: At program point L771(line 771) the Hoare annotation is: true [2020-07-21 12:51:12,060 INFO L268 CegarLoopResult]: For program point L771-1(line 771) no Hoare annotation was computed. [2020-07-21 12:51:12,060 INFO L264 CegarLoopResult]: At program point lowerWaterLevelENTRY(lines 863 874) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (= 0 ~pumpRunning~0)) (.cse2 (not (<= 2 |old(~waterLevel~0)|))) (.cse3 (<= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1 .cse2 .cse3) (or .cse0 (not (= 0 ~methaneLevelCritical~0)) .cse1 .cse2 .cse3))) [2020-07-21 12:51:12,060 INFO L268 CegarLoopResult]: For program point lowerWaterLevelEXIT(lines 863 874) no Hoare annotation was computed. [2020-07-21 12:51:12,060 INFO L268 CegarLoopResult]: For program point L867-1(lines 863 874) no Hoare annotation was computed. [2020-07-21 12:51:12,060 INFO L268 CegarLoopResult]: For program point setupEXIT(lines 819 825) no Hoare annotation was computed. [2020-07-21 12:51:12,061 INFO L271 CegarLoopResult]: At program point setupFINAL(lines 819 825) the Hoare annotation is: true [2020-07-21 12:51:12,061 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 12:51:12,061 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 0 ~methaneLevelCritical~0) (<= 1 ~waterLevel~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0)) [2020-07-21 12:51:12,061 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 12:51:12,061 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 12:51:12,061 INFO L264 CegarLoopResult]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 584 608) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (= 0 ~pumpRunning~0))) (and (or .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0)) .cse2 .cse3) (or .cse0 .cse1 .cse2 (not (= 0 ~methaneLevelCritical~0)) .cse3))) [2020-07-21 12:51:12,061 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 584 608) no Hoare annotation was computed. [2020-07-21 12:51:12,062 INFO L264 CegarLoopResult]: At program point L603(line 603) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse2 (not (= 0 |old(~pumpRunning~0)|)))) (and (or .cse0 .cse1 .cse2 (not (= 0 ~methaneLevelCritical~0))) (or .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0)) .cse2))) [2020-07-21 12:51:12,062 INFO L268 CegarLoopResult]: For program point L603-1(lines 584 608) no Hoare annotation was computed. [2020-07-21 12:51:12,062 INFO L264 CegarLoopResult]: At program point L598(line 598) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (and (= 0 processEnvironment__wrappee__highWaterSensor_~tmp~5) (= 0 ~pumpRunning~0)))) (and (or .cse0 .cse1 .cse2 (not (= 0 ~methaneLevelCritical~0)) .cse3) (or .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0)) .cse2 .cse3))) [2020-07-21 12:51:12,062 INFO L264 CegarLoopResult]: At program point L594(line 594) the Hoare annotation is: (let ((.cse2 (not (= 0 ~methaneLevelCritical~0))) (.cse5 (not (<= 1 ~waterLevel~0))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse4 (<= 2 ~waterLevel~0)) (.cse3 (= 0 ~pumpRunning~0)) (.cse1 (not (= 0 |old(~pumpRunning~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 (not .cse4)) (or .cse5 .cse0 .cse1 .cse2 (not (<= ~waterLevel~0 1))) (or .cse5 .cse0 (and .cse4 .cse3) (not (<= 1 ~methaneLevelCritical~0)) .cse1))) [2020-07-21 12:51:12,062 INFO L268 CegarLoopResult]: For program point L592(lines 592 600) no Hoare annotation was computed. [2020-07-21 12:51:12,062 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (= 0 ~pumpRunning~0))) (and (or .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0)) .cse2 .cse3) (or .cse0 .cse1 .cse2 (not (= 0 ~methaneLevelCritical~0)) .cse3))) [2020-07-21 12:51:12,062 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-07-21 12:51:12,063 INFO L268 CegarLoopResult]: For program point L588(lines 588 605) no Hoare annotation was computed. [2020-07-21 12:51:12,063 INFO L268 CegarLoopResult]: For program point waterRiseEXIT(lines 875 886) no Hoare annotation was computed. [2020-07-21 12:51:12,063 INFO L268 CegarLoopResult]: For program point L879-1(lines 875 886) no Hoare annotation was computed. [2020-07-21 12:51:12,063 INFO L264 CegarLoopResult]: At program point waterRiseENTRY(lines 875 886) the Hoare annotation is: (let ((.cse6 (not (<= 2 |old(~waterLevel~0)|))) (.cse5 (not (<= 1 ~methaneLevelCritical~0))) (.cse4 (<= |old(~waterLevel~0)| ~waterLevel~0)) (.cse7 (not (<= |old(~waterLevel~0)| 1))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (= 0 ~methaneLevelCritical~0))) (.cse8 (<= ~waterLevel~0 1)) (.cse2 (not (= 0 ~pumpRunning~0))) (.cse3 (not (<= 1 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse5 .cse2 .cse6 .cse4) (or .cse0 .cse1 .cse6 .cse4) (or .cse7 .cse0 .cse5 (and .cse8 .cse4) .cse2 .cse3) (or .cse7 .cse0 .cse1 .cse8 .cse2 .cse3))) [2020-07-21 12:51:12,063 INFO L268 CegarLoopResult]: For program point __automaton_failFINAL(lines 964 971) no Hoare annotation was computed. [2020-07-21 12:51:12,063 INFO L268 CegarLoopResult]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 968) no Hoare annotation was computed. [2020-07-21 12:51:12,063 INFO L271 CegarLoopResult]: At program point __automaton_failENTRY(lines 964 971) the Hoare annotation is: true [2020-07-21 12:51:12,064 INFO L268 CegarLoopResult]: For program point __automaton_failEXIT(lines 964 971) no Hoare annotation was computed. [2020-07-21 12:51:12,064 INFO L271 CegarLoopResult]: At program point __utac_acc__Specification1_spec__1ENTRY(lines 43 67) the Hoare annotation is: true [2020-07-21 12:51:12,064 INFO L264 CegarLoopResult]: At program point L57(line 57) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse3 (not (= 0 ~methaneLevelCritical~0))) (.cse2 (not (= 0 ~pumpRunning~0)))) (and (or .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0)) .cse2) (or .cse1 .cse3 (not (<= 2 ~waterLevel~0))) (or .cse0 .cse1 .cse3 .cse2))) [2020-07-21 12:51:12,064 INFO L268 CegarLoopResult]: For program point __utac_acc__Specification1_spec__1EXIT(lines 43 67) no Hoare annotation was computed. [2020-07-21 12:51:12,064 INFO L268 CegarLoopResult]: For program point L55(lines 55 61) no Hoare annotation was computed. [2020-07-21 12:51:12,064 INFO L264 CegarLoopResult]: At program point L53(line 53) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (= 0 ~methaneLevelCritical~0)))) (and (or .cse0 .cse1 (not (<= 2 ~waterLevel~0))) (or (not (<= 1 ~waterLevel~0)) .cse0 .cse1 (not (= 0 ~pumpRunning~0))))) [2020-07-21 12:51:12,064 INFO L268 CegarLoopResult]: For program point L53-1(line 53) no Hoare annotation was computed. [2020-07-21 12:51:12,064 INFO L268 CegarLoopResult]: For program point L51(lines 51 64) no Hoare annotation was computed. [2020-07-21 12:51:12,065 INFO L268 CegarLoopResult]: For program point L51-1(lines 43 67) no Hoare annotation was computed. [2020-07-21 12:51:12,065 INFO L271 CegarLoopResult]: At program point L49(line 49) the Hoare annotation is: true [2020-07-21 12:51:12,065 INFO L268 CegarLoopResult]: For program point L49-1(line 49) no Hoare annotation was computed. [2020-07-21 12:51:12,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 12:51:12 BoogieIcfgContainer [2020-07-21 12:51:12,082 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 12:51:12,084 INFO L168 Benchmark]: Toolchain (without parser) took 20127.56 ms. Allocated memory was 142.6 MB in the beginning and 481.8 MB in the end (delta: 339.2 MB). Free memory was 99.5 MB in the beginning and 358.7 MB in the end (delta: -259.2 MB). Peak memory consumption was 309.9 MB. Max. memory is 7.1 GB. [2020-07-21 12:51:12,085 INFO L168 Benchmark]: CDTParser took 0.56 ms. Allocated memory is still 142.6 MB. Free memory was 118.8 MB in the beginning and 118.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 12:51:12,086 INFO L168 Benchmark]: CACSL2BoogieTranslator took 657.41 ms. Allocated memory was 142.6 MB in the beginning and 199.8 MB in the end (delta: 57.1 MB). Free memory was 99.1 MB in the beginning and 166.4 MB in the end (delta: -67.2 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. [2020-07-21 12:51:12,087 INFO L168 Benchmark]: Boogie Preprocessor took 94.96 ms. Allocated memory is still 199.8 MB. Free memory was 166.4 MB in the beginning and 162.1 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. [2020-07-21 12:51:12,087 INFO L168 Benchmark]: RCFGBuilder took 1120.67 ms. Allocated memory was 199.8 MB in the beginning and 227.5 MB in the end (delta: 27.8 MB). Free memory was 162.1 MB in the beginning and 189.5 MB in the end (delta: -27.5 MB). Peak memory consumption was 87.6 MB. Max. memory is 7.1 GB. [2020-07-21 12:51:12,088 INFO L168 Benchmark]: TraceAbstraction took 18248.39 ms. Allocated memory was 227.5 MB in the beginning and 481.8 MB in the end (delta: 254.3 MB). Free memory was 189.5 MB in the beginning and 358.7 MB in the end (delta: -169.2 MB). Peak memory consumption was 314.9 MB. Max. memory is 7.1 GB. [2020-07-21 12:51:12,091 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.56 ms. Allocated memory is still 142.6 MB. Free memory was 118.8 MB in the beginning and 118.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 657.41 ms. Allocated memory was 142.6 MB in the beginning and 199.8 MB in the end (delta: 57.1 MB). Free memory was 99.1 MB in the beginning and 166.4 MB in the end (delta: -67.2 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 94.96 ms. Allocated memory is still 199.8 MB. Free memory was 166.4 MB in the beginning and 162.1 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1120.67 ms. Allocated memory was 199.8 MB in the beginning and 227.5 MB in the end (delta: 27.8 MB). Free memory was 162.1 MB in the beginning and 189.5 MB in the end (delta: -27.5 MB). Peak memory consumption was 87.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 18248.39 ms. Allocated memory was 227.5 MB in the beginning and 481.8 MB in the end (delta: 254.3 MB). Free memory was 189.5 MB in the beginning and 358.7 MB in the end (delta: -169.2 MB). Peak memory consumption was 314.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 968]: 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: 765]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 487]: Loop Invariant Derived loop invariant: ((((((!(\old(waterLevel) <= 1) || !(1 <= systemActive)) || (((0 == methaneLevelCritical && 1 <= waterLevel) && 0 == pumpRunning) && splverifierCounter <= 0)) || !(0 == \old(pumpRunning))) || !(\old(methaneLevelCritical) == 0)) || (((1 <= methaneLevelCritical && 1 <= waterLevel) && 0 == pumpRunning) && splverifierCounter <= 0)) || ((0 == methaneLevelCritical && 2 <= waterLevel) && splverifierCounter <= 0)) || !(1 <= \old(waterLevel)) - InvariantResult [Line: 486]: Loop Invariant Derived loop invariant: (((!(\old(waterLevel) <= 1) || !(0 == \old(pumpRunning))) || !(\old(methaneLevelCritical) == 0)) || !(1 <= \old(waterLevel))) || !(1 <= systemActive) - InvariantResult [Line: 775]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 242 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 12.6s, OverallIterations: 13, TraceHistogramMax: 3, AutomataDifference: 4.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2277 SDtfs, 1420 SDslu, 4413 SDs, 0 SdLazy, 2047 SolverSat, 586 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1250 GetRequests, 1191 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1225occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 13 MinimizatonAttempts, 412 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 63 LocationsWithAnnotation, 2129 PreInvPairs, 2194 NumberOfFragments, 2033 HoareAnnotationTreeSize, 2129 FomulaSimplifications, 5460 FormulaSimplificationTreeSizeReduction, 1.1s HoareSimplificationTime, 63 FomulaSimplificationsInter, 6139 FormulaSimplificationTreeSizeReductionInter, 4.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 2.7s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 1242 NumberOfCodeBlocks, 1242 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 1229 ConstructedInterpolants, 0 QuantifiedInterpolants, 231568 SizeOfPredicates, 27 NumberOfNonLiveVariables, 9710 ConjunctsInSsa, 108 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 117/117 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...