/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_spec2_product49.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 12:51:38,697 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 12:51:38,699 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 12:51:38,718 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 12:51:38,718 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 12:51:38,720 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 12:51:38,722 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 12:51:38,735 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 12:51:38,738 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 12:51:38,738 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 12:51:38,740 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 12:51:38,742 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 12:51:38,742 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 12:51:38,745 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 12:51:38,748 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 12:51:38,750 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 12:51:38,752 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 12:51:38,754 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 12:51:38,755 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 12:51:38,761 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 12:51:38,765 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 12:51:38,766 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 12:51:38,767 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 12:51:38,768 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 12:51:38,770 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-21 12:51:38,770 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-21 12:51:38,770 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-21 12:51:38,771 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-21 12:51:38,772 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-21 12:51:38,773 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-21 12:51:38,773 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-21 12:51:38,774 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-21 12:51:38,774 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-21 12:51:38,775 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-21 12:51:38,776 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-21 12:51:38,776 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-21 12:51:38,777 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-21 12:51:38,777 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-21 12:51:38,777 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 12:51:38,778 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 12:51:38,779 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 12:51:38,779 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 12:51:38,793 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 12:51:38,794 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 12:51:38,795 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 12:51:38,795 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 12:51:38,795 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 12:51:38,796 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 12:51:38,796 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 12:51:38,796 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 12:51:38,796 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 12:51:38,796 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 12:51:38,797 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 12:51:38,797 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 12:51:38,797 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 12:51:38,797 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 12:51:38,797 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 12:51:38,798 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 12:51:38,798 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 12:51:38,798 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 12:51:38,798 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 12:51:38,798 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 12:51:38,799 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 12:51:38,799 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 12:51:38,799 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 12:51:38,799 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 12:51:38,799 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 12:51:38,800 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 12:51:38,800 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:51:38,800 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 12:51:38,800 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 12:51:38,800 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 12:51:39,086 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 12:51:39,108 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 12:51:39,111 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 12:51:39,113 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 12:51:39,114 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 12:51:39,115 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product49.cil.c [2020-07-21 12:51:39,190 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a0bc258f/fe2cc39334bc43d6ad3b007cd7e739d6/FLAGb4f24fd0e [2020-07-21 12:51:39,732 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 12:51:39,733 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product49.cil.c [2020-07-21 12:51:39,746 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a0bc258f/fe2cc39334bc43d6ad3b007cd7e739d6/FLAGb4f24fd0e [2020-07-21 12:51:40,041 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a0bc258f/fe2cc39334bc43d6ad3b007cd7e739d6 [2020-07-21 12:51:40,053 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 12:51:40,056 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 12:51:40,059 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 12:51:40,059 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 12:51:40,064 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 12:51:40,065 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:51:40" (1/1) ... [2020-07-21 12:51:40,069 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56940ce8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:51:40, skipping insertion in model container [2020-07-21 12:51:40,069 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:51:40" (1/1) ... [2020-07-21 12:51:40,079 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 12:51:40,149 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 12:51:40,560 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 12:51:40,584 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 12:51:40,730 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 12:51:40,780 INFO L208 MainTranslator]: Completed translation [2020-07-21 12:51:40,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:51:40 WrapperNode [2020-07-21 12:51:40,781 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 12:51:40,782 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 12:51:40,782 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 12:51:40,782 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 12:51:40,794 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:51:40" (1/1) ... [2020-07-21 12:51:40,795 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:51:40" (1/1) ... [2020-07-21 12:51:40,815 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:51:40" (1/1) ... [2020-07-21 12:51:40,816 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:51:40" (1/1) ... [2020-07-21 12:51:40,849 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:51:40" (1/1) ... [2020-07-21 12:51:40,862 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:51:40" (1/1) ... [2020-07-21 12:51:40,875 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:51:40" (1/1) ... [2020-07-21 12:51:40,888 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 12:51:40,889 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 12:51:40,889 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 12:51:40,889 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 12:51:40,892 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:51:40" (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 12:51:40,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 12:51:40,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 12:51:40,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-21 12:51:40,958 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-21 12:51:40,958 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-21 12:51:40,959 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-21 12:51:40,959 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-21 12:51:40,959 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 12:51:40,959 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-21 12:51:40,959 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-21 12:51:40,959 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-21 12:51:40,959 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-21 12:51:40,960 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-21 12:51:40,960 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-21 12:51:40,960 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-21 12:51:40,960 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-07-21 12:51:40,960 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-07-21 12:51:40,961 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-07-21 12:51:40,961 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-21 12:51:40,961 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-21 12:51:40,961 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-21 12:51:40,961 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-07-21 12:51:40,961 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-21 12:51:40,961 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-21 12:51:40,962 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-21 12:51:40,962 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-21 12:51:40,962 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-21 12:51:40,962 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-21 12:51:40,962 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-21 12:51:40,963 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-07-21 12:51:40,963 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-21 12:51:40,963 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-21 12:51:40,963 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-21 12:51:40,963 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-21 12:51:40,963 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-21 12:51:40,964 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-21 12:51:40,964 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-21 12:51:40,964 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-21 12:51:40,964 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-21 12:51:40,964 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-21 12:51:40,964 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-21 12:51:40,964 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 12:51:40,965 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 12:51:40,965 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-21 12:51:40,965 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-21 12:51:40,965 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-21 12:51:40,965 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-21 12:51:40,965 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-21 12:51:40,966 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-21 12:51:40,966 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-21 12:51:40,966 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-21 12:51:40,966 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-07-21 12:51:40,966 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-21 12:51:40,966 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-21 12:51:40,966 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-21 12:51:40,967 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-21 12:51:40,967 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-21 12:51:40,967 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 12:51:40,967 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-21 12:51:40,967 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-21 12:51:40,967 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-21 12:51:40,968 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-21 12:51:40,968 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-21 12:51:40,968 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-07-21 12:51:40,968 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-21 12:51:40,968 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-21 12:51:40,968 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-21 12:51:40,968 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-07-21 12:51:40,969 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-21 12:51:40,969 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-21 12:51:40,969 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-21 12:51:40,969 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-21 12:51:40,969 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-21 12:51:40,969 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-07-21 12:51:40,970 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-07-21 12:51:40,970 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-21 12:51:40,970 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-21 12:51:40,970 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-21 12:51:40,970 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-21 12:51:40,970 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-21 12:51:40,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-21 12:51:40,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-21 12:51:40,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-21 12:51:40,971 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-21 12:51:40,971 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-21 12:51:40,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-21 12:51:40,971 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-21 12:51:40,972 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-21 12:51:40,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-21 12:51:40,972 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-21 12:51:40,972 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-21 12:51:40,972 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-21 12:51:40,972 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-21 12:51:40,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 12:51:40,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-21 12:51:40,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 12:51:42,034 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 12:51:42,034 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-21 12:51:42,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:51:42 BoogieIcfgContainer [2020-07-21 12:51:42,040 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 12:51:42,041 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 12:51:42,041 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 12:51:42,044 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 12:51:42,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 12:51:40" (1/3) ... [2020-07-21 12:51:42,046 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@135c0648 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:51:42, skipping insertion in model container [2020-07-21 12:51:42,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:51:40" (2/3) ... [2020-07-21 12:51:42,046 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@135c0648 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:51:42, skipping insertion in model container [2020-07-21 12:51:42,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:51:42" (3/3) ... [2020-07-21 12:51:42,048 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product49.cil.c [2020-07-21 12:51:42,059 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 12:51:42,068 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 12:51:42,082 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 12:51:42,109 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 12:51:42,110 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 12:51:42,110 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 12:51:42,110 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 12:51:42,110 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 12:51:42,111 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 12:51:42,111 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 12:51:42,111 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 12:51:42,136 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states. [2020-07-21 12:51:42,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-21 12:51:42,147 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:51:42,148 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:51:42,149 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:51:42,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:51:42,156 INFO L82 PathProgramCache]: Analyzing trace with hash -154299971, now seen corresponding path program 1 times [2020-07-21 12:51:42,165 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:51:42,166 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [259041761] [2020-07-21 12:51:42,166 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 12:51:42,569 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:51:42,569 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:51:42,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 674 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-21 12:51:42,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:51:42,618 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 12:51:42,618 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:51:42,620 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [259041761] [2020-07-21 12:51:42,620 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:51:42,621 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-21 12:51:42,622 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63627508] [2020-07-21 12:51:42,627 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-21 12:51:42,628 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:51:42,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-21 12:51:42,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 12:51:42,646 INFO L87 Difference]: Start difference. First operand 179 states. Second operand 2 states. [2020-07-21 12:51:42,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:51:42,690 INFO L93 Difference]: Finished difference Result 262 states and 325 transitions. [2020-07-21 12:51:42,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-21 12:51:42,692 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2020-07-21 12:51:42,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:51:42,707 INFO L225 Difference]: With dead ends: 262 [2020-07-21 12:51:42,707 INFO L226 Difference]: Without dead ends: 133 [2020-07-21 12:51:42,712 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 12:51:42,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2020-07-21 12:51:42,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2020-07-21 12:51:42,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-07-21 12:51:42,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 156 transitions. [2020-07-21 12:51:42,771 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 156 transitions. Word has length 51 [2020-07-21 12:51:42,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:51:42,772 INFO L479 AbstractCegarLoop]: Abstraction has 133 states and 156 transitions. [2020-07-21 12:51:42,772 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-21 12:51:42,772 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 156 transitions. [2020-07-21 12:51:42,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-21 12:51:42,776 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:51:42,776 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:51:42,990 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:51:42,991 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:51:42,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:51:42,992 INFO L82 PathProgramCache]: Analyzing trace with hash 401693438, now seen corresponding path program 1 times [2020-07-21 12:51:42,992 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:51:42,993 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [921655500] [2020-07-21 12:51:42,994 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 12:51:43,431 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:51:43,432 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:51:43,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 675 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-21 12:51:43,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:51:43,484 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 12:51:43,484 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:51:43,485 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [921655500] [2020-07-21 12:51:43,485 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:51:43,485 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 12:51:43,485 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482597497] [2020-07-21 12:51:43,487 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 12:51:43,487 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:51:43,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 12:51:43,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:51:43,488 INFO L87 Difference]: Start difference. First operand 133 states and 156 transitions. Second operand 3 states. [2020-07-21 12:51:43,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:51:43,512 INFO L93 Difference]: Finished difference Result 238 states and 287 transitions. [2020-07-21 12:51:43,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 12:51:43,513 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-07-21 12:51:43,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:51:43,515 INFO L225 Difference]: With dead ends: 238 [2020-07-21 12:51:43,516 INFO L226 Difference]: Without dead ends: 133 [2020-07-21 12:51:43,518 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:51:43,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2020-07-21 12:51:43,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2020-07-21 12:51:43,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-07-21 12:51:43,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 155 transitions. [2020-07-21 12:51:43,550 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 155 transitions. Word has length 52 [2020-07-21 12:51:43,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:51:43,550 INFO L479 AbstractCegarLoop]: Abstraction has 133 states and 155 transitions. [2020-07-21 12:51:43,550 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 12:51:43,550 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 155 transitions. [2020-07-21 12:51:43,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-07-21 12:51:43,557 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:51:43,557 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] [2020-07-21 12:51:43,770 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:51:43,771 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:51:43,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:51:43,772 INFO L82 PathProgramCache]: Analyzing trace with hash 1680558686, now seen corresponding path program 1 times [2020-07-21 12:51:43,772 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:51:43,773 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1717281947] [2020-07-21 12:51:43,773 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 12:51:44,096 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:51:44,096 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:51:44,101 INFO L263 TraceCheckSpWp]: Trace formula consists of 698 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-21 12:51:44,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:51:44,133 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 12:51:44,134 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:51:44,134 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1717281947] [2020-07-21 12:51:44,134 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:51:44,134 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 12:51:44,135 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700135745] [2020-07-21 12:51:44,135 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 12:51:44,136 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:51:44,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 12:51:44,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:51:44,136 INFO L87 Difference]: Start difference. First operand 133 states and 155 transitions. Second operand 3 states. [2020-07-21 12:51:44,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:51:44,151 INFO L93 Difference]: Finished difference Result 211 states and 245 transitions. [2020-07-21 12:51:44,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 12:51:44,152 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 65 [2020-07-21 12:51:44,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:51:44,154 INFO L225 Difference]: With dead ends: 211 [2020-07-21 12:51:44,154 INFO L226 Difference]: Without dead ends: 124 [2020-07-21 12:51:44,156 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 63 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 12:51:44,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-07-21 12:51:44,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2020-07-21 12:51:44,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2020-07-21 12:51:44,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 143 transitions. [2020-07-21 12:51:44,168 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 143 transitions. Word has length 65 [2020-07-21 12:51:44,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:51:44,169 INFO L479 AbstractCegarLoop]: Abstraction has 124 states and 143 transitions. [2020-07-21 12:51:44,169 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 12:51:44,169 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 143 transitions. [2020-07-21 12:51:44,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-07-21 12:51:44,170 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:51:44,170 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] [2020-07-21 12:51:44,383 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:51:44,384 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:51:44,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:51:44,385 INFO L82 PathProgramCache]: Analyzing trace with hash -877153324, now seen corresponding path program 1 times [2020-07-21 12:51:44,386 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:51:44,387 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [827072921] [2020-07-21 12:51:44,387 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 12:51:44,696 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:51:44,696 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:51:44,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 701 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 12:51:44,704 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:51:44,745 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 12:51:44,745 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:51:44,746 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [827072921] [2020-07-21 12:51:44,746 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:51:44,746 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 12:51:44,746 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076282361] [2020-07-21 12:51:44,747 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 12:51:44,747 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:51:44,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 12:51:44,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-21 12:51:44,748 INFO L87 Difference]: Start difference. First operand 124 states and 143 transitions. Second operand 6 states. [2020-07-21 12:51:45,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:51:45,322 INFO L93 Difference]: Finished difference Result 297 states and 361 transitions. [2020-07-21 12:51:45,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 12:51:45,323 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 69 [2020-07-21 12:51:45,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:51:45,329 INFO L225 Difference]: With dead ends: 297 [2020-07-21 12:51:45,329 INFO L226 Difference]: Without dead ends: 201 [2020-07-21 12:51:45,333 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 65 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 12:51:45,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2020-07-21 12:51:45,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 186. [2020-07-21 12:51:45,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2020-07-21 12:51:45,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 211 transitions. [2020-07-21 12:51:45,369 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 211 transitions. Word has length 69 [2020-07-21 12:51:45,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:51:45,369 INFO L479 AbstractCegarLoop]: Abstraction has 186 states and 211 transitions. [2020-07-21 12:51:45,369 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 12:51:45,370 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 211 transitions. [2020-07-21 12:51:45,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-07-21 12:51:45,372 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:51:45,373 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:51:45,586 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:51:45,587 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:51:45,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:51:45,588 INFO L82 PathProgramCache]: Analyzing trace with hash -1061705923, now seen corresponding path program 1 times [2020-07-21 12:51:45,588 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:51:45,589 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1034626582] [2020-07-21 12:51:45,589 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 12:51:45,971 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:51:45,971 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:51:45,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 738 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 12:51:45,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:51:46,033 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 12:51:46,033 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:51:46,034 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1034626582] [2020-07-21 12:51:46,034 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:51:46,034 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 12:51:46,035 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461150095] [2020-07-21 12:51:46,037 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 12:51:46,037 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:51:46,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 12:51:46,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-21 12:51:46,039 INFO L87 Difference]: Start difference. First operand 186 states and 211 transitions. Second operand 6 states. [2020-07-21 12:51:46,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:51:46,270 INFO L93 Difference]: Finished difference Result 347 states and 402 transitions. [2020-07-21 12:51:46,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 12:51:46,272 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 83 [2020-07-21 12:51:46,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:51:46,275 INFO L225 Difference]: With dead ends: 347 [2020-07-21 12:51:46,275 INFO L226 Difference]: Without dead ends: 189 [2020-07-21 12:51:46,278 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 78 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 12:51:46,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2020-07-21 12:51:46,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 185. [2020-07-21 12:51:46,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2020-07-21 12:51:46,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 208 transitions. [2020-07-21 12:51:46,298 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 208 transitions. Word has length 83 [2020-07-21 12:51:46,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:51:46,299 INFO L479 AbstractCegarLoop]: Abstraction has 185 states and 208 transitions. [2020-07-21 12:51:46,299 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 12:51:46,299 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 208 transitions. [2020-07-21 12:51:46,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-07-21 12:51:46,300 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:51:46,300 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:51:46,515 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:51:46,516 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:51:46,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:51:46,517 INFO L82 PathProgramCache]: Analyzing trace with hash 1949658748, now seen corresponding path program 1 times [2020-07-21 12:51:46,518 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:51:46,519 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1354225199] [2020-07-21 12:51:46,519 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 12:51:46,896 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:51:46,897 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:51:46,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 741 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 12:51:46,903 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:51:46,940 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 12:51:46,940 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:51:46,941 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1354225199] [2020-07-21 12:51:46,941 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:51:46,941 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 12:51:46,941 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705225789] [2020-07-21 12:51:46,942 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 12:51:46,942 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:51:46,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 12:51:46,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-21 12:51:46,943 INFO L87 Difference]: Start difference. First operand 185 states and 208 transitions. Second operand 6 states. [2020-07-21 12:51:46,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:51:46,983 INFO L93 Difference]: Finished difference Result 347 states and 397 transitions. [2020-07-21 12:51:46,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 12:51:46,984 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 84 [2020-07-21 12:51:46,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:51:46,986 INFO L225 Difference]: With dead ends: 347 [2020-07-21 12:51:46,986 INFO L226 Difference]: Without dead ends: 190 [2020-07-21 12:51:46,987 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 79 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 12:51:46,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2020-07-21 12:51:46,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 190. [2020-07-21 12:51:47,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2020-07-21 12:51:47,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 213 transitions. [2020-07-21 12:51:47,001 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 213 transitions. Word has length 84 [2020-07-21 12:51:47,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:51:47,002 INFO L479 AbstractCegarLoop]: Abstraction has 190 states and 213 transitions. [2020-07-21 12:51:47,002 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 12:51:47,002 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 213 transitions. [2020-07-21 12:51:47,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-07-21 12:51:47,003 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:51:47,004 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:51:47,217 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:51:47,218 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:51:47,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:51:47,219 INFO L82 PathProgramCache]: Analyzing trace with hash -1643708674, now seen corresponding path program 1 times [2020-07-21 12:51:47,219 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:51:47,220 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1652943083] [2020-07-21 12:51:47,220 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 12:51:47,521 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:51:47,522 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:51:47,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 742 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-21 12:51:47,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:51:47,564 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 12:51:47,564 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:51:47,565 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1652943083] [2020-07-21 12:51:47,565 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:51:47,565 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 12:51:47,565 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610032846] [2020-07-21 12:51:47,566 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 12:51:47,566 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:51:47,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 12:51:47,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 12:51:47,567 INFO L87 Difference]: Start difference. First operand 190 states and 213 transitions. Second operand 5 states. [2020-07-21 12:51:47,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:51:47,627 INFO L93 Difference]: Finished difference Result 359 states and 413 transitions. [2020-07-21 12:51:47,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 12:51:47,628 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 84 [2020-07-21 12:51:47,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:51:47,630 INFO L225 Difference]: With dead ends: 359 [2020-07-21 12:51:47,630 INFO L226 Difference]: Without dead ends: 197 [2020-07-21 12:51:47,631 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 80 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 12:51:47,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2020-07-21 12:51:47,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 194. [2020-07-21 12:51:47,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2020-07-21 12:51:47,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 217 transitions. [2020-07-21 12:51:47,643 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 217 transitions. Word has length 84 [2020-07-21 12:51:47,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:51:47,644 INFO L479 AbstractCegarLoop]: Abstraction has 194 states and 217 transitions. [2020-07-21 12:51:47,644 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 12:51:47,644 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 217 transitions. [2020-07-21 12:51:47,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-07-21 12:51:47,645 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:51:47,645 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:51:47,858 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:51:47,859 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:51:47,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:51:47,860 INFO L82 PathProgramCache]: Analyzing trace with hash 81772223, now seen corresponding path program 1 times [2020-07-21 12:51:47,860 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:51:47,861 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1584716510] [2020-07-21 12:51:47,861 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 12:51:48,104 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:51:48,104 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:51:48,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 742 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-21 12:51:48,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:51:48,150 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 12:51:48,151 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:51:48,151 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1584716510] [2020-07-21 12:51:48,151 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:51:48,152 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 12:51:48,152 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278348950] [2020-07-21 12:51:48,152 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 12:51:48,153 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:51:48,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 12:51:48,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:51:48,153 INFO L87 Difference]: Start difference. First operand 194 states and 217 transitions. Second operand 3 states. [2020-07-21 12:51:48,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:51:48,189 INFO L93 Difference]: Finished difference Result 498 states and 585 transitions. [2020-07-21 12:51:48,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 12:51:48,191 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 84 [2020-07-21 12:51:48,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:51:48,195 INFO L225 Difference]: With dead ends: 498 [2020-07-21 12:51:48,195 INFO L226 Difference]: Without dead ends: 332 [2020-07-21 12:51:48,196 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 81 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 12:51:48,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2020-07-21 12:51:48,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 329. [2020-07-21 12:51:48,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 329 states. [2020-07-21 12:51:48,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 380 transitions. [2020-07-21 12:51:48,239 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 380 transitions. Word has length 84 [2020-07-21 12:51:48,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:51:48,240 INFO L479 AbstractCegarLoop]: Abstraction has 329 states and 380 transitions. [2020-07-21 12:51:48,240 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 12:51:48,240 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 380 transitions. [2020-07-21 12:51:48,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-07-21 12:51:48,245 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:51:48,245 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:51:48,459 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:51:48,460 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:51:48,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:51:48,460 INFO L82 PathProgramCache]: Analyzing trace with hash -547882727, now seen corresponding path program 1 times [2020-07-21 12:51:48,460 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:51:48,461 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1300544021] [2020-07-21 12:51:48,461 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 12:51:48,710 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:51:48,711 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:51:48,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 751 conjuncts, 23 conjunts are in the unsatisfiable core [2020-07-21 12:51:48,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:51:48,764 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 12:51:48,764 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:51:48,765 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1300544021] [2020-07-21 12:51:48,765 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:51:48,765 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 12:51:48,765 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36833650] [2020-07-21 12:51:48,766 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 12:51:48,766 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:51:48,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 12:51:48,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-21 12:51:48,767 INFO L87 Difference]: Start difference. First operand 329 states and 380 transitions. Second operand 6 states. [2020-07-21 12:51:48,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:51:49,000 INFO L93 Difference]: Finished difference Result 910 states and 1088 transitions. [2020-07-21 12:51:49,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 12:51:49,000 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 88 [2020-07-21 12:51:49,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:51:49,005 INFO L225 Difference]: With dead ends: 910 [2020-07-21 12:51:49,005 INFO L226 Difference]: Without dead ends: 609 [2020-07-21 12:51:49,007 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 83 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 12:51:49,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609 states. [2020-07-21 12:51:49,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609 to 601. [2020-07-21 12:51:49,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2020-07-21 12:51:49,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 696 transitions. [2020-07-21 12:51:49,071 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 696 transitions. Word has length 88 [2020-07-21 12:51:49,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:51:49,072 INFO L479 AbstractCegarLoop]: Abstraction has 601 states and 696 transitions. [2020-07-21 12:51:49,072 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 12:51:49,072 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 696 transitions. [2020-07-21 12:51:49,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-07-21 12:51:49,074 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:51:49,074 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:51:49,286 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:51:49,286 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:51:49,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:51:49,287 INFO L82 PathProgramCache]: Analyzing trace with hash -470187979, now seen corresponding path program 1 times [2020-07-21 12:51:49,287 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:51:49,288 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1031351167] [2020-07-21 12:51:49,288 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 12:51:49,570 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:51:49,571 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:51:49,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 761 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-21 12:51:49,579 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:51:49,604 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 12:51:49,604 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:51:49,605 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1031351167] [2020-07-21 12:51:49,605 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:51:49,605 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 12:51:49,605 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996582704] [2020-07-21 12:51:49,606 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 12:51:49,606 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:51:49,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 12:51:49,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:51:49,607 INFO L87 Difference]: Start difference. First operand 601 states and 696 transitions. Second operand 3 states. [2020-07-21 12:51:49,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:51:49,665 INFO L93 Difference]: Finished difference Result 902 states and 1061 transitions. [2020-07-21 12:51:49,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 12:51:49,667 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 92 [2020-07-21 12:51:49,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:51:49,674 INFO L225 Difference]: With dead ends: 902 [2020-07-21 12:51:49,675 INFO L226 Difference]: Without dead ends: 899 [2020-07-21 12:51:49,676 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 90 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 12:51:49,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 899 states. [2020-07-21 12:51:49,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 899 to 755. [2020-07-21 12:51:49,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 755 states. [2020-07-21 12:51:49,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 755 states to 755 states and 888 transitions. [2020-07-21 12:51:49,733 INFO L78 Accepts]: Start accepts. Automaton has 755 states and 888 transitions. Word has length 92 [2020-07-21 12:51:49,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:51:49,734 INFO L479 AbstractCegarLoop]: Abstraction has 755 states and 888 transitions. [2020-07-21 12:51:49,734 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 12:51:49,734 INFO L276 IsEmpty]: Start isEmpty. Operand 755 states and 888 transitions. [2020-07-21 12:51:49,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-07-21 12:51:49,742 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:51:49,742 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:51:49,955 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:51:49,956 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:51:49,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:51:49,957 INFO L82 PathProgramCache]: Analyzing trace with hash 956550023, now seen corresponding path program 1 times [2020-07-21 12:51:49,957 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:51:49,958 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1634658983] [2020-07-21 12:51:49,958 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 12:51:50,234 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:51:50,235 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:51:50,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 904 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 12:51:50,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:51:50,289 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:51:50,289 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:51:50,289 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1634658983] [2020-07-21 12:51:50,289 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:51:50,290 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 12:51:50,290 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733405390] [2020-07-21 12:51:50,291 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 12:51:50,291 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:51:50,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 12:51:50,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-21 12:51:50,291 INFO L87 Difference]: Start difference. First operand 755 states and 888 transitions. Second operand 5 states. [2020-07-21 12:51:51,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:51:51,019 INFO L93 Difference]: Finished difference Result 1946 states and 2414 transitions. [2020-07-21 12:51:51,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 12:51:51,020 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 152 [2020-07-21 12:51:51,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:51:51,027 INFO L225 Difference]: With dead ends: 1946 [2020-07-21 12:51:51,027 INFO L226 Difference]: Without dead ends: 1219 [2020-07-21 12:51:51,030 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 149 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 12:51:51,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1219 states. [2020-07-21 12:51:51,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1219 to 1118. [2020-07-21 12:51:51,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1118 states. [2020-07-21 12:51:51,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1118 states to 1118 states and 1326 transitions. [2020-07-21 12:51:51,095 INFO L78 Accepts]: Start accepts. Automaton has 1118 states and 1326 transitions. Word has length 152 [2020-07-21 12:51:51,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:51:51,095 INFO L479 AbstractCegarLoop]: Abstraction has 1118 states and 1326 transitions. [2020-07-21 12:51:51,095 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 12:51:51,096 INFO L276 IsEmpty]: Start isEmpty. Operand 1118 states and 1326 transitions. [2020-07-21 12:51:51,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-07-21 12:51:51,099 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:51:51,100 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:51:51,312 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:51:51,313 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:51:51,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:51:51,314 INFO L82 PathProgramCache]: Analyzing trace with hash 1309638405, now seen corresponding path program 1 times [2020-07-21 12:51:51,314 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:51:51,314 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [714146521] [2020-07-21 12:51:51,315 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 12:51:51,597 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:51:51,597 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:51:51,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 906 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-21 12:51:51,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:51:51,705 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:51:51,706 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:51:51,706 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [714146521] [2020-07-21 12:51:51,706 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:51:51,706 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-21 12:51:51,707 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560377080] [2020-07-21 12:51:51,707 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-21 12:51:51,707 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:51:51,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-21 12:51:51,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-07-21 12:51:51,708 INFO L87 Difference]: Start difference. First operand 1118 states and 1326 transitions. Second operand 9 states. [2020-07-21 12:51:53,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:51:53,195 INFO L93 Difference]: Finished difference Result 3007 states and 3902 transitions. [2020-07-21 12:51:53,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-21 12:51:53,196 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 152 [2020-07-21 12:51:53,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:51:53,210 INFO L225 Difference]: With dead ends: 3007 [2020-07-21 12:51:53,210 INFO L226 Difference]: Without dead ends: 1917 [2020-07-21 12:51:53,214 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 148 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 12:51:53,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1917 states. [2020-07-21 12:51:53,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1917 to 1550. [2020-07-21 12:51:53,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1550 states. [2020-07-21 12:51:53,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1550 states to 1550 states and 1851 transitions. [2020-07-21 12:51:53,311 INFO L78 Accepts]: Start accepts. Automaton has 1550 states and 1851 transitions. Word has length 152 [2020-07-21 12:51:53,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:51:53,312 INFO L479 AbstractCegarLoop]: Abstraction has 1550 states and 1851 transitions. [2020-07-21 12:51:53,312 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-21 12:51:53,312 INFO L276 IsEmpty]: Start isEmpty. Operand 1550 states and 1851 transitions. [2020-07-21 12:51:53,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-07-21 12:51:53,315 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:51:53,316 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:51:53,530 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:51:53,531 INFO L427 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:51:53,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:51:53,531 INFO L82 PathProgramCache]: Analyzing trace with hash 1237251847, now seen corresponding path program 1 times [2020-07-21 12:51:53,531 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:51:53,531 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2102138611] [2020-07-21 12:51:53,532 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 12:51:53,835 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:51:53,836 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:51:53,839 INFO L263 TraceCheckSpWp]: Trace formula consists of 907 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 12:51:53,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:51:53,921 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-07-21 12:51:53,921 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:51:53,921 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2102138611] [2020-07-21 12:51:53,921 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:51:53,922 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 12:51:53,922 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231951269] [2020-07-21 12:51:53,922 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 12:51:53,923 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:51:53,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 12:51:53,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-21 12:51:53,923 INFO L87 Difference]: Start difference. First operand 1550 states and 1851 transitions. Second operand 6 states. [2020-07-21 12:51:53,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:51:53,998 INFO L93 Difference]: Finished difference Result 2087 states and 2491 transitions. [2020-07-21 12:51:53,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 12:51:53,998 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 152 [2020-07-21 12:51:53,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:51:54,000 INFO L225 Difference]: With dead ends: 2087 [2020-07-21 12:51:54,000 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 12:51:54,005 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 147 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 12:51:54,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 12:51:54,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 12:51:54,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 12:51:54,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 12:51:54,006 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 152 [2020-07-21 12:51:54,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:51:54,007 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 12:51:54,007 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 12:51:54,007 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 12:51:54,007 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 12:51:54,217 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:51:54,221 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 12:51:55,495 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 20 [2020-07-21 12:51:55,930 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 20 [2020-07-21 12:51:56,156 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 34 [2020-07-21 12:51:56,290 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 33 [2020-07-21 12:51:56,517 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 25 [2020-07-21 12:51:56,751 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 26 [2020-07-21 12:51:57,230 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 35 [2020-07-21 12:51:57,886 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 33 [2020-07-21 12:51:58,397 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 18 [2020-07-21 12:51:58,675 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 36 [2020-07-21 12:51:58,680 INFO L268 CegarLoopResult]: For program point L638(line 638) no Hoare annotation was computed. [2020-07-21 12:51:58,680 INFO L268 CegarLoopResult]: For program point L637-2(lines 637 658) no Hoare annotation was computed. [2020-07-21 12:51:58,680 INFO L268 CegarLoopResult]: For program point L659(lines 636 660) no Hoare annotation was computed. [2020-07-21 12:51:58,681 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeFINAL(lines 612 667) no Hoare annotation was computed. [2020-07-21 12:51:58,681 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeEXIT(lines 612 667) no Hoare annotation was computed. [2020-07-21 12:51:58,681 INFO L268 CegarLoopResult]: For program point L643(lines 643 647) no Hoare annotation was computed. [2020-07-21 12:51:58,681 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeENTRY(lines 612 667) no Hoare annotation was computed. [2020-07-21 12:51:58,681 INFO L268 CegarLoopResult]: For program point L643-1(lines 643 647) no Hoare annotation was computed. [2020-07-21 12:51:58,681 INFO L268 CegarLoopResult]: For program point L700(lines 700 704) no Hoare annotation was computed. [2020-07-21 12:51:58,682 INFO L268 CegarLoopResult]: For program point L700-1(lines 700 704) no Hoare annotation was computed. [2020-07-21 12:51:58,682 INFO L268 CegarLoopResult]: For program point L695(line 695) no Hoare annotation was computed. [2020-07-21 12:51:58,682 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetFINAL(lines 668 727) no Hoare annotation was computed. [2020-07-21 12:51:58,682 INFO L268 CegarLoopResult]: For program point L694-2(lines 694 719) no Hoare annotation was computed. [2020-07-21 12:51:58,682 INFO L268 CegarLoopResult]: For program point L720(lines 693 721) no Hoare annotation was computed. [2020-07-21 12:51:58,683 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetENTRY(lines 668 727) no Hoare annotation was computed. [2020-07-21 12:51:58,683 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetEXIT(lines 668 727) no Hoare annotation was computed. [2020-07-21 12:51:58,683 INFO L268 CegarLoopResult]: For program point L713(line 713) no Hoare annotation was computed. [2020-07-21 12:51:58,683 INFO L268 CegarLoopResult]: For program point L713-1(line 713) no Hoare annotation was computed. [2020-07-21 12:51:58,683 INFO L271 CegarLoopResult]: At program point select_helpersFINAL(lines 953 959) the Hoare annotation is: true [2020-07-21 12:51:58,683 INFO L268 CegarLoopResult]: For program point select_helpersEXIT(lines 953 959) no Hoare annotation was computed. [2020-07-21 12:51:58,684 INFO L268 CegarLoopResult]: For program point valid_productEXIT(lines 960 968) no Hoare annotation was computed. [2020-07-21 12:51:58,684 INFO L271 CegarLoopResult]: At program point valid_productENTRY(lines 960 968) the Hoare annotation is: true [2020-07-21 12:51:58,684 INFO L268 CegarLoopResult]: For program point valid_productFINAL(lines 960 968) no Hoare annotation was computed. [2020-07-21 12:51:58,684 INFO L264 CegarLoopResult]: At program point L129(line 129) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 1 |old(~waterLevel~0)|))) [2020-07-21 12:51:58,684 INFO L264 CegarLoopResult]: At program point L128(line 128) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 1 |old(~waterLevel~0)|))) [2020-07-21 12:51:58,684 INFO L264 CegarLoopResult]: At program point L128-1(line 128) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 1 |old(~waterLevel~0)|))) [2020-07-21 12:51:58,685 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 122 144) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 1 |old(~waterLevel~0)|))) [2020-07-21 12:51:58,685 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 122 144) no Hoare annotation was computed. [2020-07-21 12:51:58,685 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 122 144) no Hoare annotation was computed. [2020-07-21 12:51:58,685 INFO L264 CegarLoopResult]: At program point L134(line 134) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 1 |old(~waterLevel~0)|))) [2020-07-21 12:51:58,685 INFO L264 CegarLoopResult]: At program point L134-1(line 134) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 1 |old(~waterLevel~0)|))) [2020-07-21 12:51:58,685 INFO L268 CegarLoopResult]: For program point L132(lines 132 139) no Hoare annotation was computed. [2020-07-21 12:51:58,685 INFO L268 CegarLoopResult]: For program point L132-1(lines 132 139) no Hoare annotation was computed. [2020-07-21 12:51:58,686 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-21 12:51:58,686 INFO L268 CegarLoopResult]: For program point Specification2EXIT(lines 75 98) no Hoare annotation was computed. [2020-07-21 12:51:58,686 INFO L268 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-07-21 12:51:58,686 INFO L268 CegarLoopResult]: For program point Specification2ENTRY(lines 75 98) no Hoare annotation was computed. [2020-07-21 12:51:58,686 INFO L268 CegarLoopResult]: For program point L92(line 92) no Hoare annotation was computed. [2020-07-21 12:51:58,686 INFO L268 CegarLoopResult]: For program point Specification2FINAL(lines 75 98) no Hoare annotation was computed. [2020-07-21 12:51:58,686 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-21 12:51:58,686 INFO L268 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-07-21 12:51:58,686 INFO L268 CegarLoopResult]: For program point L89(line 89) no Hoare annotation was computed. [2020-07-21 12:51:58,687 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-21 12:51:58,687 INFO L268 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-07-21 12:51:58,687 INFO L268 CegarLoopResult]: For program point L86(line 86) no Hoare annotation was computed. [2020-07-21 12:51:58,687 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-21 12:51:58,687 INFO L268 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-07-21 12:51:58,687 INFO L268 CegarLoopResult]: For program point L83(line 83) no Hoare annotation was computed. [2020-07-21 12:51:58,687 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-21 12:51:58,687 INFO L268 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-07-21 12:51:58,688 INFO L268 CegarLoopResult]: For program point L80(line 80) no Hoare annotation was computed. [2020-07-21 12:51:58,688 INFO L268 CegarLoopResult]: For program point isPumpRunningEXIT(lines 476 484) no Hoare annotation was computed. [2020-07-21 12:51:58,688 INFO L271 CegarLoopResult]: At program point isPumpRunningENTRY(lines 476 484) the Hoare annotation is: true [2020-07-21 12:51:58,688 INFO L268 CegarLoopResult]: For program point isPumpRunningFINAL(lines 476 484) no Hoare annotation was computed. [2020-07-21 12:51:58,688 INFO L271 CegarLoopResult]: At program point isLowWaterLevelENTRY(lines 540 558) the Hoare annotation is: true [2020-07-21 12:51:58,688 INFO L268 CegarLoopResult]: For program point isLowWaterLevelEXIT(lines 540 558) no Hoare annotation was computed. [2020-07-21 12:51:58,688 INFO L268 CegarLoopResult]: For program point L549(lines 549 553) no Hoare annotation was computed. [2020-07-21 12:51:58,688 INFO L271 CegarLoopResult]: At program point L547(line 547) the Hoare annotation is: true [2020-07-21 12:51:58,689 INFO L268 CegarLoopResult]: For program point L549-2(lines 549 553) no Hoare annotation was computed. [2020-07-21 12:51:58,689 INFO L268 CegarLoopResult]: For program point L547-1(line 547) no Hoare annotation was computed. [2020-07-21 12:51:58,689 INFO L268 CegarLoopResult]: For program point isLowWaterLevelFINAL(lines 540 558) no Hoare annotation was computed. [2020-07-21 12:51:58,689 INFO L268 CegarLoopResult]: For program point L504(lines 504 512) no Hoare annotation was computed. [2020-07-21 12:51:58,689 INFO L268 CegarLoopResult]: For program point L504-2(lines 504 512) no Hoare annotation was computed. [2020-07-21 12:51:58,689 INFO L268 CegarLoopResult]: For program point printPumpFINAL(lines 485 520) no Hoare annotation was computed. [2020-07-21 12:51:58,689 INFO L268 CegarLoopResult]: For program point L492(lines 492 500) no Hoare annotation was computed. [2020-07-21 12:51:58,689 INFO L268 CegarLoopResult]: For program point L492-2(lines 492 500) no Hoare annotation was computed. [2020-07-21 12:51:58,689 INFO L268 CegarLoopResult]: For program point printPumpENTRY(lines 485 520) no Hoare annotation was computed. [2020-07-21 12:51:58,689 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-07-21 12:51:58,690 INFO L268 CegarLoopResult]: For program point printPumpEXIT(lines 485 520) no Hoare annotation was computed. [2020-07-21 12:51:58,690 INFO L268 CegarLoopResult]: For program point L515-1(line 515) no Hoare annotation was computed. [2020-07-21 12:51:58,690 INFO L268 CegarLoopResult]: For program point select_featuresEXIT(lines 946 952) no Hoare annotation was computed. [2020-07-21 12:51:58,690 INFO L271 CegarLoopResult]: At program point select_featuresFINAL(lines 946 952) the Hoare annotation is: true [2020-07-21 12:51:58,690 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setENTRY(lines 566 611) no Hoare annotation was computed. [2020-07-21 12:51:58,690 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setEXIT(lines 566 611) no Hoare annotation was computed. [2020-07-21 12:51:58,690 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setFINAL(lines 566 611) no Hoare annotation was computed. [2020-07-21 12:51:58,690 INFO L268 CegarLoopResult]: For program point L893(lines 893 913) no Hoare annotation was computed. [2020-07-21 12:51:58,690 INFO L268 CegarLoopResult]: For program point L893-1(lines 893 913) no Hoare annotation was computed. [2020-07-21 12:51:58,690 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeFINAL(lines 879 924) no Hoare annotation was computed. [2020-07-21 12:51:58,690 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeENTRY(lines 879 924) no Hoare annotation was computed. [2020-07-21 12:51:58,691 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeEXIT(lines 879 924) no Hoare annotation was computed. [2020-07-21 12:51:58,691 INFO L268 CegarLoopResult]: For program point L899(lines 899 906) no Hoare annotation was computed. [2020-07-21 12:51:58,691 INFO L264 CegarLoopResult]: At program point L113(line 113) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 1 |old(~waterLevel~0)|))) [2020-07-21 12:51:58,691 INFO L264 CegarLoopResult]: At program point runTestENTRY(lines 108 118) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 1 |old(~waterLevel~0)|))) [2020-07-21 12:51:58,691 INFO L268 CegarLoopResult]: For program point runTestEXIT(lines 108 118) no Hoare annotation was computed. [2020-07-21 12:51:58,691 INFO L268 CegarLoopResult]: For program point runTestFINAL(lines 108 118) no Hoare annotation was computed. [2020-07-21 12:51:58,691 INFO L268 CegarLoopResult]: For program point isMethaneAlarmENTRY(lines 465 475) no Hoare annotation was computed. [2020-07-21 12:51:58,691 INFO L268 CegarLoopResult]: For program point isMethaneAlarmEXIT(lines 465 475) no Hoare annotation was computed. [2020-07-21 12:51:58,691 INFO L268 CegarLoopResult]: For program point isMethaneAlarmFINAL(lines 465 475) no Hoare annotation was computed. [2020-07-21 12:51:58,691 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-07-21 12:51:58,692 INFO L268 CegarLoopResult]: For program point L470-1(line 470) no Hoare annotation was computed. [2020-07-21 12:51:58,692 INFO L264 CegarLoopResult]: At program point deactivatePumpENTRY(lines 457 464) the Hoare annotation is: (or (= 0 |old(~pumpRunning~0)|) (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0)) (= ~pumpRunning~0 |old(~pumpRunning~0)|)) [2020-07-21 12:51:58,692 INFO L268 CegarLoopResult]: For program point deactivatePumpEXIT(lines 457 464) no Hoare annotation was computed. [2020-07-21 12:51:58,692 INFO L268 CegarLoopResult]: For program point deactivatePumpFINAL(lines 457 464) no Hoare annotation was computed. [2020-07-21 12:51:58,692 INFO L268 CegarLoopResult]: For program point L235(lines 235 241) no Hoare annotation was computed. [2020-07-21 12:51:58,692 INFO L268 CegarLoopResult]: For program point isHighWaterSensorDryEXIT(lines 231 244) no Hoare annotation was computed. [2020-07-21 12:51:58,692 INFO L271 CegarLoopResult]: At program point isHighWaterSensorDryENTRY(lines 231 244) the Hoare annotation is: true [2020-07-21 12:51:58,692 INFO L268 CegarLoopResult]: For program point isHighWaterSensorDryFINAL(lines 231 244) no Hoare annotation was computed. [2020-07-21 12:51:58,692 INFO L264 CegarLoopResult]: At program point L443(line 443) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0)))) (and (or (not (= 0 ~methAndRunningLastTime~0)) .cse0 .cse1 (= 0 ~pumpRunning~0)) (or (= 0 |old(~pumpRunning~0)|) .cse0 .cse1))) [2020-07-21 12:51:58,692 INFO L268 CegarLoopResult]: For program point L443-1(lines 424 448) no Hoare annotation was computed. [2020-07-21 12:51:58,693 INFO L268 CegarLoopResult]: For program point processEnvironmentEXIT(lines 424 448) no Hoare annotation was computed. [2020-07-21 12:51:58,693 INFO L264 CegarLoopResult]: At program point L438(line 438) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0)))) (and (or (not (= 0 ~methAndRunningLastTime~0)) .cse0 .cse1) (or (= 0 |old(~pumpRunning~0)|) .cse0 .cse1))) [2020-07-21 12:51:58,693 INFO L264 CegarLoopResult]: At program point processEnvironmentENTRY(lines 424 448) the Hoare annotation is: (let ((.cse1 (not (<= 1 ~waterLevel~0))) (.cse2 (not (<= 1 ~systemActive~0))) (.cse0 (= 0 |old(~pumpRunning~0)|))) (and (or .cse0 .cse1 .cse2 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (or (not (= 0 ~methAndRunningLastTime~0)) .cse1 .cse2 (not .cse0) (= 0 ~pumpRunning~0)))) [2020-07-21 12:51:58,693 INFO L264 CegarLoopResult]: At program point L434(line 434) the Hoare annotation is: (let ((.cse1 (not (<= 1 ~waterLevel~0))) (.cse2 (not (<= 1 ~systemActive~0))) (.cse0 (= 0 |old(~pumpRunning~0)|))) (and (or .cse0 .cse1 .cse2 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 processEnvironment_~tmp~4))) (or (not (= 0 ~methAndRunningLastTime~0)) .cse1 .cse2 (not .cse0)))) [2020-07-21 12:51:58,693 INFO L268 CegarLoopResult]: For program point L432(lines 432 440) no Hoare annotation was computed. [2020-07-21 12:51:58,693 INFO L264 CegarLoopResult]: At program point L430(line 430) the Hoare annotation is: (let ((.cse2 (= 0 |old(~pumpRunning~0)|)) (.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0)))) (and (or (not (= 0 ~methAndRunningLastTime~0)) .cse0 .cse1 (not .cse2)) (or .cse2 .cse0 .cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|)))) [2020-07-21 12:51:58,694 INFO L268 CegarLoopResult]: For program point L430-1(line 430) no Hoare annotation was computed. [2020-07-21 12:51:58,694 INFO L268 CegarLoopResult]: For program point L428(lines 428 445) no Hoare annotation was computed. [2020-07-21 12:51:58,694 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__baseEXIT(lines 390 396) no Hoare annotation was computed. [2020-07-21 12:51:58,694 INFO L271 CegarLoopResult]: At program point processEnvironment__wrappee__baseFINAL(lines 390 396) the Hoare annotation is: true [2020-07-21 12:51:58,694 INFO L264 CegarLoopResult]: At program point testENTRY(lines 296 359) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 1 |old(~waterLevel~0)|))) [2020-07-21 12:51:58,694 INFO L264 CegarLoopResult]: At program point L318(line 318) the Hoare annotation is: (let ((.cse0 (= 0 ~pumpRunning~0)) (.cse1 (<= test_~splverifierCounter~0 0))) (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) (not .cse0) .cse1) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~waterLevel~0)|)) (and (= 0 ~methAndRunningLastTime~0) (<= 1 ~waterLevel~0) .cse0 .cse1))) [2020-07-21 12:51:58,694 INFO L264 CegarLoopResult]: At program point L349(lines 306 351) the Hoare annotation is: (let ((.cse0 (= 0 ~pumpRunning~0)) (.cse1 (<= test_~splverifierCounter~0 0))) (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) (not .cse0) .cse1) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~waterLevel~0)|)) (and (= 0 ~methAndRunningLastTime~0) (<= 1 ~waterLevel~0) .cse0 .cse1))) [2020-07-21 12:51:58,695 INFO L268 CegarLoopResult]: For program point L316(lines 316 322) no Hoare annotation was computed. [2020-07-21 12:51:58,695 INFO L268 CegarLoopResult]: For program point L316-1(lines 316 322) no Hoare annotation was computed. [2020-07-21 12:51:58,695 INFO L268 CegarLoopResult]: For program point testFINAL(lines 296 359) no Hoare annotation was computed. [2020-07-21 12:51:58,695 INFO L268 CegarLoopResult]: For program point L308(lines 308 312) no Hoare annotation was computed. [2020-07-21 12:51:58,695 INFO L264 CegarLoopResult]: At program point L352(lines 305 353) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 ~systemActive~0))) [2020-07-21 12:51:58,695 INFO L268 CegarLoopResult]: For program point L342(lines 342 346) no Hoare annotation was computed. [2020-07-21 12:51:58,695 INFO L264 CegarLoopResult]: At program point L342-2(lines 336 347) the Hoare annotation is: (let ((.cse0 (= 0 ~pumpRunning~0)) (.cse1 (<= test_~splverifierCounter~0 0))) (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) (not .cse0) .cse1) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~waterLevel~0)|)) (and (= 0 ~methAndRunningLastTime~0) (<= 1 ~waterLevel~0) .cse0 .cse1))) [2020-07-21 12:51:58,695 INFO L268 CegarLoopResult]: For program point L307(lines 306 351) no Hoare annotation was computed. [2020-07-21 12:51:58,696 INFO L268 CegarLoopResult]: For program point L336(lines 336 347) no Hoare annotation was computed. [2020-07-21 12:51:58,696 INFO L264 CegarLoopResult]: At program point L328(line 328) the Hoare annotation is: (let ((.cse0 (= 0 ~pumpRunning~0)) (.cse1 (<= test_~splverifierCounter~0 0))) (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) (not .cse0) .cse1) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~waterLevel~0)|)) (and (= 0 ~methAndRunningLastTime~0) (<= 1 ~waterLevel~0) .cse0 .cse1))) [2020-07-21 12:51:58,696 INFO L268 CegarLoopResult]: For program point L326(lines 326 332) no Hoare annotation was computed. [2020-07-21 12:51:58,696 INFO L268 CegarLoopResult]: For program point L326-1(lines 326 332) no Hoare annotation was computed. [2020-07-21 12:51:58,696 INFO L268 CegarLoopResult]: For program point testEXIT(lines 296 359) no Hoare annotation was computed. [2020-07-21 12:51:58,696 INFO L268 CegarLoopResult]: For program point __utac__get_this_argENTRY(lines 833 878) no Hoare annotation was computed. [2020-07-21 12:51:58,696 INFO L268 CegarLoopResult]: For program point L853(lines 853 860) no Hoare annotation was computed. [2020-07-21 12:51:58,696 INFO L268 CegarLoopResult]: For program point __utac__get_this_argEXIT(lines 833 878) no Hoare annotation was computed. [2020-07-21 12:51:58,696 INFO L268 CegarLoopResult]: For program point __utac__get_this_argFINAL(lines 833 878) no Hoare annotation was computed. [2020-07-21 12:51:58,697 INFO L268 CegarLoopResult]: For program point L847(lines 847 867) no Hoare annotation was computed. [2020-07-21 12:51:58,697 INFO L268 CegarLoopResult]: For program point L847-1(lines 847 867) no Hoare annotation was computed. [2020-07-21 12:51:58,697 INFO L268 CegarLoopResult]: For program point isLowWaterSensorDryFINAL(lines 245 253) no Hoare annotation was computed. [2020-07-21 12:51:58,697 INFO L271 CegarLoopResult]: At program point isLowWaterSensorDryENTRY(lines 245 253) the Hoare annotation is: true [2020-07-21 12:51:58,697 INFO L268 CegarLoopResult]: For program point isLowWaterSensorDryEXIT(lines 245 253) no Hoare annotation was computed. [2020-07-21 12:51:58,697 INFO L264 CegarLoopResult]: At program point L281(line 281) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (<= 2 ~waterLevel~0)))) (and (or .cse0 (not (<= 1 ~waterLevel~0)) (not (= 0 ~pumpRunning~0))) (or .cse0 (not (= 0 ~methaneLevelCritical~0)) .cse1) (or .cse0 (not (= 0 |old(~methAndRunningLastTime~0)|)) .cse1))) [2020-07-21 12:51:58,697 INFO L268 CegarLoopResult]: For program point L279(lines 279 285) no Hoare annotation was computed. [2020-07-21 12:51:58,697 INFO L268 CegarLoopResult]: For program point L278(lines 278 288) no Hoare annotation was computed. [2020-07-21 12:51:58,698 INFO L264 CegarLoopResult]: At program point L276(line 276) the Hoare annotation is: (let ((.cse2 (= 0 ~pumpRunning~0)) (.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (= 0 ~methaneLevelCritical~0))) (.cse3 (not (<= 2 ~waterLevel~0)))) (and (or .cse0 (not (<= 1 ~waterLevel~0)) .cse1 (not .cse2)) (or .cse0 (= 0 ~methAndRunningLastTime~0) (not (= 0 |old(~methAndRunningLastTime~0)|)) .cse2 .cse3) (or .cse0 .cse1 .cse3))) [2020-07-21 12:51:58,698 INFO L268 CegarLoopResult]: For program point L276-1(line 276) no Hoare annotation was computed. [2020-07-21 12:51:58,698 INFO L268 CegarLoopResult]: For program point L274(lines 274 291) no Hoare annotation was computed. [2020-07-21 12:51:58,698 INFO L268 CegarLoopResult]: For program point L274-1(lines 266 294) no Hoare annotation was computed. [2020-07-21 12:51:58,698 INFO L264 CegarLoopResult]: At program point __utac_acc__Specification2_spec__2ENTRY(lines 266 294) the Hoare annotation is: (or (not (<= 1 ~systemActive~0)) (= 0 ~methAndRunningLastTime~0) (not (= 0 |old(~methAndRunningLastTime~0)|)) (= 0 ~pumpRunning~0) (not (<= 2 ~waterLevel~0))) [2020-07-21 12:51:58,698 INFO L264 CegarLoopResult]: At program point L272(line 272) the Hoare annotation is: (or (not (<= 1 ~systemActive~0)) (= 0 ~methAndRunningLastTime~0) (not (= 0 |old(~methAndRunningLastTime~0)|)) (= 0 ~pumpRunning~0) (not (<= 2 ~waterLevel~0))) [2020-07-21 12:51:58,698 INFO L268 CegarLoopResult]: For program point L272-1(line 272) no Hoare annotation was computed. [2020-07-21 12:51:58,698 INFO L268 CegarLoopResult]: For program point __utac_acc__Specification2_spec__2EXIT(lines 266 294) no Hoare annotation was computed. [2020-07-21 12:51:58,699 INFO L264 CegarLoopResult]: At program point __utac_acc__Specification2_spec__1ENTRY(lines 258 265) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0)) (= 0 ~methAndRunningLastTime~0) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 ~methaneLevelCritical~0)) (not (<= ~waterLevel~0 1)) (not (= 0 ~pumpRunning~0))) [2020-07-21 12:51:58,699 INFO L268 CegarLoopResult]: For program point __utac_acc__Specification2_spec__1FINAL(lines 258 265) no Hoare annotation was computed. [2020-07-21 12:51:58,699 INFO L268 CegarLoopResult]: For program point __utac_acc__Specification2_spec__1EXIT(lines 258 265) no Hoare annotation was computed. [2020-07-21 12:51:58,699 INFO L268 CegarLoopResult]: For program point L207(lines 207 215) no Hoare annotation was computed. [2020-07-21 12:51:58,699 INFO L268 CegarLoopResult]: For program point L207-2(lines 207 215) no Hoare annotation was computed. [2020-07-21 12:51:58,699 INFO L268 CegarLoopResult]: For program point printEnvironmentEXIT(lines 199 221) no Hoare annotation was computed. [2020-07-21 12:51:58,699 INFO L268 CegarLoopResult]: For program point printEnvironmentENTRY(lines 199 221) no Hoare annotation was computed. [2020-07-21 12:51:58,699 INFO L268 CegarLoopResult]: For program point printEnvironmentFINAL(lines 199 221) no Hoare annotation was computed. [2020-07-21 12:51:58,699 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtENTRY(lines 730 832) no Hoare annotation was computed. [2020-07-21 12:51:58,699 INFO L268 CegarLoopResult]: For program point L795(line 795) no Hoare annotation was computed. [2020-07-21 12:51:58,700 INFO L268 CegarLoopResult]: For program point L795-1(line 795) no Hoare annotation was computed. [2020-07-21 12:51:58,700 INFO L268 CegarLoopResult]: For program point L754(lines 754 758) no Hoare annotation was computed. [2020-07-21 12:51:58,700 INFO L268 CegarLoopResult]: For program point L818(lines 818 829) no Hoare annotation was computed. [2020-07-21 12:51:58,700 INFO L268 CegarLoopResult]: For program point L781(lines 781 785) no Hoare annotation was computed. [2020-07-21 12:51:58,700 INFO L268 CegarLoopResult]: For program point L779-2(lines 779 799) no Hoare annotation was computed. [2020-07-21 12:51:58,700 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtFINAL(lines 730 832) no Hoare annotation was computed. [2020-07-21 12:51:58,700 INFO L268 CegarLoopResult]: For program point L800(lines 778 801) no Hoare annotation was computed. [2020-07-21 12:51:58,700 INFO L268 CegarLoopResult]: For program point L759(lines 759 775) no Hoare annotation was computed. [2020-07-21 12:51:58,700 INFO L268 CegarLoopResult]: For program point L819(lines 819 826) no Hoare annotation was computed. [2020-07-21 12:51:58,701 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtEXIT(lines 730 832) no Hoare annotation was computed. [2020-07-21 12:51:58,701 INFO L268 CegarLoopResult]: For program point L780(lines 779 799) no Hoare annotation was computed. [2020-07-21 12:51:58,701 INFO L268 CegarLoopResult]: For program point L811(line 811) no Hoare annotation was computed. [2020-07-21 12:51:58,701 INFO L268 CegarLoopResult]: For program point L811-1(line 811) no Hoare annotation was computed. [2020-07-21 12:51:58,701 INFO L268 CegarLoopResult]: For program point L776(lines 776 817) no Hoare annotation was computed. [2020-07-21 12:51:58,701 INFO L268 CegarLoopResult]: For program point select_oneENTRY(lines 936 945) no Hoare annotation was computed. [2020-07-21 12:51:58,701 INFO L268 CegarLoopResult]: For program point select_oneFINAL(lines 936 945) no Hoare annotation was computed. [2020-07-21 12:51:58,701 INFO L268 CegarLoopResult]: For program point select_oneEXIT(lines 936 945) no Hoare annotation was computed. [2020-07-21 12:51:58,701 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 12:51:58,702 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 12:51:58,702 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 12:51:58,702 INFO L268 CegarLoopResult]: For program point activatePumpFINAL(lines 449 456) no Hoare annotation was computed. [2020-07-21 12:51:58,702 INFO L268 CegarLoopResult]: For program point activatePumpEXIT(lines 449 456) no Hoare annotation was computed. [2020-07-21 12:51:58,702 INFO L264 CegarLoopResult]: At program point activatePumpENTRY(lines 449 456) the Hoare annotation is: (or (not (= 0 ~methAndRunningLastTime~0)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0) (not (<= 2 ~waterLevel~0))) [2020-07-21 12:51:58,702 INFO L268 CegarLoopResult]: For program point getWaterLevelENTRY(lines 222 230) no Hoare annotation was computed. [2020-07-21 12:51:58,702 INFO L268 CegarLoopResult]: For program point getWaterLevelFINAL(lines 222 230) no Hoare annotation was computed. [2020-07-21 12:51:58,702 INFO L268 CegarLoopResult]: For program point getWaterLevelEXIT(lines 222 230) no Hoare annotation was computed. [2020-07-21 12:51:58,702 INFO L268 CegarLoopResult]: For program point isHighWaterLevelEXIT(lines 521 539) no Hoare annotation was computed. [2020-07-21 12:51:58,702 INFO L271 CegarLoopResult]: At program point L528(line 528) the Hoare annotation is: true [2020-07-21 12:51:58,702 INFO L268 CegarLoopResult]: For program point L530-2(lines 530 534) no Hoare annotation was computed. [2020-07-21 12:51:58,702 INFO L268 CegarLoopResult]: For program point L528-1(line 528) no Hoare annotation was computed. [2020-07-21 12:51:58,702 INFO L271 CegarLoopResult]: At program point isHighWaterLevelENTRY(lines 521 539) the Hoare annotation is: true [2020-07-21 12:51:58,703 INFO L268 CegarLoopResult]: For program point isHighWaterLevelFINAL(lines 521 539) no Hoare annotation was computed. [2020-07-21 12:51:58,703 INFO L268 CegarLoopResult]: For program point L530(lines 530 534) no Hoare annotation was computed. [2020-07-21 12:51:58,703 INFO L264 CegarLoopResult]: At program point changeMethaneLevelENTRY(lines 178 189) the Hoare annotation is: (let ((.cse0 (not (= 0 ~methAndRunningLastTime~0))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse2 (= 0 ~methaneLevelCritical~0)) (.cse3 (not (= |old(~methaneLevelCritical~0)| 0)))) (and (or .cse0 .cse1 .cse2 .cse3 (not (<= 2 ~waterLevel~0))) (or .cse0 (not (<= 1 ~waterLevel~0)) .cse1 .cse2 .cse3 (not (= 0 ~pumpRunning~0))))) [2020-07-21 12:51:58,703 INFO L268 CegarLoopResult]: For program point changeMethaneLevelEXIT(lines 178 189) no Hoare annotation was computed. [2020-07-21 12:51:58,703 INFO L268 CegarLoopResult]: For program point L182-1(lines 178 189) no Hoare annotation was computed. [2020-07-21 12:51:58,703 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2020-07-21 12:51:58,703 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intENTRY(line -1) no Hoare annotation was computed. [2020-07-21 12:51:58,703 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intFINAL(line -1) no Hoare annotation was computed. [2020-07-21 12:51:58,704 INFO L264 CegarLoopResult]: At program point L379(line 379) the Hoare annotation is: (let ((.cse6 (= 0 |old(~pumpRunning~0)|))) (let ((.cse1 (= 0 ~methAndRunningLastTime~0)) (.cse2 (not (= 0 |old(~methAndRunningLastTime~0)|))) (.cse4 (not .cse6)) (.cse5 (not (<= 1 |old(~waterLevel~0)|))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse3 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse2 .cse4 (and .cse1 (= 0 ~pumpRunning~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) .cse5) (or (not (<= |old(~waterLevel~0)| 1)) .cse0 .cse2 .cse4 (<= ~waterLevel~0 1) .cse5) (or .cse6 .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1))) .cse3)))) [2020-07-21 12:51:58,704 INFO L264 CegarLoopResult]: At program point L377(lines 377 383) the Hoare annotation is: (let ((.cse0 (= 0 |old(~pumpRunning~0)|))) (let ((.cse1 (not (<= 1 ~systemActive~0))) (.cse3 (not (= 0 |old(~methAndRunningLastTime~0)|))) (.cse4 (not .cse0)) (.cse2 (= 0 ~pumpRunning~0)) (.cse5 (not (<= 1 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 (and (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse2) (not (<= 2 |old(~waterLevel~0)|))) (or .cse1 .cse3 .cse4 (and (= 0 ~methAndRunningLastTime~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) .cse5) (or (not (<= |old(~waterLevel~0)| 1)) .cse1 .cse3 .cse4 (and .cse2 (<= ~waterLevel~0 1)) .cse5)))) [2020-07-21 12:51:58,704 INFO L264 CegarLoopResult]: At program point L372(line 372) the Hoare annotation is: (let ((.cse2 (not (<= 2 |old(~waterLevel~0)|))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (= 0 |old(~methAndRunningLastTime~0)|))) (.cse3 (= 0 |old(~pumpRunning~0)|))) (and (or .cse0 (= 0 ~methAndRunningLastTime~0) .cse1 .cse2) (or .cse3 .cse0 .cse2 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse0 .cse1 (not .cse3) (not (<= 1 |old(~waterLevel~0)|))))) [2020-07-21 12:51:58,704 INFO L268 CegarLoopResult]: For program point L370(lines 369 388) no Hoare annotation was computed. [2020-07-21 12:51:58,704 INFO L264 CegarLoopResult]: At program point timeShiftENTRY(lines 366 389) the Hoare annotation is: (let ((.cse7 (= 0 |old(~pumpRunning~0)|))) (let ((.cse1 (= 0 ~methAndRunningLastTime~0)) (.cse2 (not (= 0 |old(~methAndRunningLastTime~0)|))) (.cse4 (not .cse7)) (.cse6 (not (<= 1 |old(~waterLevel~0)|))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse3 (not (<= 2 |old(~waterLevel~0)|))) (.cse5 (<= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse2 .cse4 (and .cse1 (= 0 ~pumpRunning~0) .cse5) .cse6) (or (not (<= |old(~waterLevel~0)| 1)) .cse0 .cse2 .cse4 (<= ~waterLevel~0 1) .cse6) (or .cse7 .cse0 .cse3 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse5))))) [2020-07-21 12:51:58,704 INFO L268 CegarLoopResult]: For program point timeShiftEXIT(lines 366 389) no Hoare annotation was computed. [2020-07-21 12:51:58,705 INFO L268 CegarLoopResult]: For program point timeShiftFINAL(lines 366 389) no Hoare annotation was computed. [2020-07-21 12:51:58,705 INFO L268 CegarLoopResult]: For program point cleanupEXIT(lines 42 71) no Hoare annotation was computed. [2020-07-21 12:51:58,705 INFO L268 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-07-21 12:51:58,705 INFO L271 CegarLoopResult]: At program point cleanupENTRY(lines 42 71) the Hoare annotation is: true [2020-07-21 12:51:58,705 INFO L268 CegarLoopResult]: For program point L56(lines 56 60) no Hoare annotation was computed. [2020-07-21 12:51:58,705 INFO L271 CegarLoopResult]: At program point L56-1(lines 56 60) the Hoare annotation is: true [2020-07-21 12:51:58,705 INFO L268 CegarLoopResult]: For program point L53(line 53) no Hoare annotation was computed. [2020-07-21 12:51:58,705 INFO L271 CegarLoopResult]: At program point L52-2(lines 52 66) the Hoare annotation is: true [2020-07-21 12:51:58,706 INFO L271 CegarLoopResult]: At program point L48(line 48) the Hoare annotation is: true [2020-07-21 12:51:58,706 INFO L268 CegarLoopResult]: For program point L48-1(line 48) no Hoare annotation was computed. [2020-07-21 12:51:58,706 INFO L271 CegarLoopResult]: At program point L67(lines 42 71) the Hoare annotation is: true [2020-07-21 12:51:58,706 INFO L271 CegarLoopResult]: At program point isMethaneLevelCriticalENTRY(lines 190 198) the Hoare annotation is: true [2020-07-21 12:51:58,706 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalFINAL(lines 190 198) no Hoare annotation was computed. [2020-07-21 12:51:58,706 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalEXIT(lines 190 198) no Hoare annotation was computed. [2020-07-21 12:51:58,706 INFO L264 CegarLoopResult]: At program point lowerWaterLevelENTRY(lines 154 165) the Hoare annotation is: (or (not (<= 1 ~systemActive~0)) (= 0 ~pumpRunning~0) (not (<= 2 |old(~waterLevel~0)|)) (<= |old(~waterLevel~0)| ~waterLevel~0)) [2020-07-21 12:51:58,706 INFO L268 CegarLoopResult]: For program point L158-1(lines 154 165) no Hoare annotation was computed. [2020-07-21 12:51:58,707 INFO L268 CegarLoopResult]: For program point lowerWaterLevelEXIT(lines 154 165) no Hoare annotation was computed. [2020-07-21 12:51:58,707 INFO L268 CegarLoopResult]: For program point setupEXIT(lines 99 105) no Hoare annotation was computed. [2020-07-21 12:51:58,707 INFO L271 CegarLoopResult]: At program point setupFINAL(lines 99 105) the Hoare annotation is: true [2020-07-21 12:51:58,707 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 12:51:58,707 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (<= 1 ~waterLevel~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0)) [2020-07-21 12:51:58,707 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 12:51:58,707 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 12:51:58,707 INFO L264 CegarLoopResult]: At program point L417(line 417) the Hoare annotation is: (or (not (= 0 ~methAndRunningLastTime~0)) (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|))) [2020-07-21 12:51:58,708 INFO L264 CegarLoopResult]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 398 422) the Hoare annotation is: (or (not (= 0 ~methAndRunningLastTime~0)) (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0)) [2020-07-21 12:51:58,708 INFO L268 CegarLoopResult]: For program point L417-1(lines 398 422) no Hoare annotation was computed. [2020-07-21 12:51:58,708 INFO L264 CegarLoopResult]: At program point L412(line 412) the Hoare annotation is: (or (not (= 0 ~methAndRunningLastTime~0)) (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 processEnvironment__wrappee__highWaterSensor_~tmp~3) (= 0 ~pumpRunning~0))) [2020-07-21 12:51:58,708 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 398 422) no Hoare annotation was computed. [2020-07-21 12:51:58,708 INFO L264 CegarLoopResult]: At program point L408(line 408) the Hoare annotation is: (or (not (= 0 ~methAndRunningLastTime~0)) (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0)) (and (<= 2 ~waterLevel~0) (= 0 ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|))) [2020-07-21 12:51:58,708 INFO L268 CegarLoopResult]: For program point L406(lines 406 414) no Hoare annotation was computed. [2020-07-21 12:51:58,708 INFO L264 CegarLoopResult]: At program point L404(line 404) the Hoare annotation is: (or (not (= 0 ~methAndRunningLastTime~0)) (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0)) [2020-07-21 12:51:58,709 INFO L268 CegarLoopResult]: For program point L404-1(line 404) no Hoare annotation was computed. [2020-07-21 12:51:58,709 INFO L268 CegarLoopResult]: For program point L402(lines 402 419) no Hoare annotation was computed. [2020-07-21 12:51:58,709 INFO L268 CegarLoopResult]: For program point waterRiseEXIT(lines 166 177) no Hoare annotation was computed. [2020-07-21 12:51:58,709 INFO L268 CegarLoopResult]: For program point L170-1(lines 166 177) no Hoare annotation was computed. [2020-07-21 12:51:58,709 INFO L264 CegarLoopResult]: At program point waterRiseENTRY(lines 166 177) the Hoare annotation is: (let ((.cse5 (= 0 ~pumpRunning~0))) (let ((.cse0 (not (= 0 ~methAndRunningLastTime~0))) (.cse2 (not .cse5)) (.cse3 (not (<= 1 |old(~waterLevel~0)|))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse4 (<= |old(~waterLevel~0)| ~waterLevel~0))) (and (or (not (<= |old(~waterLevel~0)| 1)) .cse0 .cse1 (<= ~waterLevel~0 1) .cse2 .cse3) (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse1 .cse5 (not (<= 2 |old(~waterLevel~0)|)) .cse4)))) [2020-07-21 12:51:58,709 INFO L268 CegarLoopResult]: For program point __automaton_failFINAL(lines 926 933) no Hoare annotation was computed. [2020-07-21 12:51:58,709 INFO L268 CegarLoopResult]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 930) no Hoare annotation was computed. [2020-07-21 12:51:58,709 INFO L271 CegarLoopResult]: At program point __automaton_failENTRY(lines 926 933) the Hoare annotation is: true [2020-07-21 12:51:58,710 INFO L268 CegarLoopResult]: For program point __automaton_failEXIT(lines 926 933) no Hoare annotation was computed. [2020-07-21 12:51:58,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 12:51:58 BoogieIcfgContainer [2020-07-21 12:51:58,728 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 12:51:58,730 INFO L168 Benchmark]: Toolchain (without parser) took 18674.85 ms. Allocated memory was 135.3 MB in the beginning and 448.8 MB in the end (delta: 313.5 MB). Free memory was 98.7 MB in the beginning and 253.8 MB in the end (delta: -155.0 MB). Peak memory consumption was 336.9 MB. Max. memory is 7.1 GB. [2020-07-21 12:51:58,730 INFO L168 Benchmark]: CDTParser took 0.48 ms. Allocated memory is still 135.3 MB. Free memory was 118.3 MB in the beginning and 118.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 12:51:58,731 INFO L168 Benchmark]: CACSL2BoogieTranslator took 722.12 ms. Allocated memory was 135.3 MB in the beginning and 199.8 MB in the end (delta: 64.5 MB). Free memory was 98.3 MB in the beginning and 167.5 MB in the end (delta: -69.2 MB). Peak memory consumption was 27.7 MB. Max. memory is 7.1 GB. [2020-07-21 12:51:58,732 INFO L168 Benchmark]: Boogie Preprocessor took 106.76 ms. Allocated memory is still 199.8 MB. Free memory was 167.5 MB in the beginning and 163.2 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. [2020-07-21 12:51:58,733 INFO L168 Benchmark]: RCFGBuilder took 1151.00 ms. Allocated memory was 199.8 MB in the beginning and 227.0 MB in the end (delta: 27.3 MB). Free memory was 163.2 MB in the beginning and 191.9 MB in the end (delta: -28.7 MB). Peak memory consumption was 89.3 MB. Max. memory is 7.1 GB. [2020-07-21 12:51:58,733 INFO L168 Benchmark]: TraceAbstraction took 16686.73 ms. Allocated memory was 227.0 MB in the beginning and 448.8 MB in the end (delta: 221.8 MB). Free memory was 191.9 MB in the beginning and 253.8 MB in the end (delta: -61.9 MB). Peak memory consumption was 338.3 MB. Max. memory is 7.1 GB. [2020-07-21 12:51:58,736 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48 ms. Allocated memory is still 135.3 MB. Free memory was 118.3 MB in the beginning and 118.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 722.12 ms. Allocated memory was 135.3 MB in the beginning and 199.8 MB in the end (delta: 64.5 MB). Free memory was 98.3 MB in the beginning and 167.5 MB in the end (delta: -69.2 MB). Peak memory consumption was 27.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 106.76 ms. Allocated memory is still 199.8 MB. Free memory was 167.5 MB in the beginning and 163.2 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1151.00 ms. Allocated memory was 199.8 MB in the beginning and 227.0 MB in the end (delta: 27.3 MB). Free memory was 163.2 MB in the beginning and 191.9 MB in the end (delta: -28.7 MB). Peak memory consumption was 89.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 16686.73 ms. Allocated memory was 227.0 MB in the beginning and 448.8 MB in the end (delta: 221.8 MB). Free memory was 191.9 MB in the beginning and 253.8 MB in the end (delta: -61.9 MB). Peak memory consumption was 338.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 930]: 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: 305]: Loop Invariant Derived loop invariant: ((((!(\old(waterLevel) <= 1) || !(0 == \old(methAndRunningLastTime))) || !(0 == \old(pumpRunning))) || !(\old(methaneLevelCritical) == 0)) || !(1 <= \old(waterLevel))) || !(1 <= systemActive) - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 306]: Loop Invariant Derived loop invariant: ((((((!(\old(waterLevel) <= 1) || !(1 <= systemActive)) || !(0 == \old(methAndRunningLastTime))) || !(0 == \old(pumpRunning))) || ((2 <= waterLevel && !(0 == pumpRunning)) && splverifierCounter <= 0)) || !(\old(methaneLevelCritical) == 0)) || !(1 <= \old(waterLevel))) || (((0 == methAndRunningLastTime && 1 <= waterLevel) && 0 == pumpRunning) && splverifierCounter <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 240 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 12.1s, OverallIterations: 13, TraceHistogramMax: 2, AutomataDifference: 3.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2079 SDtfs, 1178 SDslu, 3280 SDs, 0 SdLazy, 1913 SolverSat, 435 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1216 GetRequests, 1163 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1550occurred 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: 0.4s AutomataMinimizationTime, 13 MinimizatonAttempts, 645 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 60 LocationsWithAnnotation, 2146 PreInvPairs, 2223 NumberOfFragments, 1516 HoareAnnotationTreeSize, 2146 FomulaSimplifications, 7437 FormulaSimplificationTreeSizeReduction, 1.1s HoareSimplificationTime, 60 FomulaSimplificationsInter, 8646 FormulaSimplificationTreeSizeReductionInter, 3.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 3.0s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 1208 NumberOfCodeBlocks, 1208 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 1195 ConstructedInterpolants, 0 QuantifiedInterpolants, 212857 SizeOfPredicates, 27 NumberOfNonLiveVariables, 9940 ConjunctsInSsa, 114 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 105/105 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...