/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_VARIABLES --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product49.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 16:25:21,727 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 16:25:21,730 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 16:25:21,747 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 16:25:21,747 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 16:25:21,748 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 16:25:21,751 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 16:25:21,754 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 16:25:21,757 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 16:25:21,764 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 16:25:21,765 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 16:25:21,767 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 16:25:21,768 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 16:25:21,771 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 16:25:21,772 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 16:25:21,773 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 16:25:21,775 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 16:25:21,779 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 16:25:21,781 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 16:25:21,786 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 16:25:21,788 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 16:25:21,789 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 16:25:21,792 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 16:25:21,793 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 16:25:21,797 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-20 16:25:21,797 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-20 16:25:21,798 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-20 16:25:21,800 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-20 16:25:21,801 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-20 16:25:21,802 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-20 16:25:21,803 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-20 16:25:21,804 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-20 16:25:21,805 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-20 16:25:21,807 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-20 16:25:21,813 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-20 16:25:21,813 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-20 16:25:21,814 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-20 16:25:21,814 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-20 16:25:21,814 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 16:25:21,815 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 16:25:21,816 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 16:25:21,817 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-20 16:25:21,856 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 16:25:21,856 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 16:25:21,861 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 16:25:21,861 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 16:25:21,861 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 16:25:21,862 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 16:25:21,862 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 16:25:21,862 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 16:25:21,862 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 16:25:21,863 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 16:25:21,863 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 16:25:21,865 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 16:25:21,866 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 16:25:21,866 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 16:25:21,866 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 16:25:21,866 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 16:25:21,866 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 16:25:21,866 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 16:25:21,867 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 16:25:21,867 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 16:25:21,867 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 16:25:21,868 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 16:25:21,869 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 16:25:21,869 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 16:25:21,869 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 16:25:21,869 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 16:25:21,869 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:21,870 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 16:25:21,870 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 16:25:21,870 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_VARIABLES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-20 16:25:22,227 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 16:25:22,242 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 16:25:22,245 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 16:25:22,247 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 16:25:22,247 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 16:25:22,248 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product49.cil.c [2020-07-20 16:25:22,314 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af93c537b/59b34c5fedb44112b7fabdae07cf1c0f/FLAG11a721096 [2020-07-20 16:25:22,798 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 16:25:22,799 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product49.cil.c [2020-07-20 16:25:22,815 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af93c537b/59b34c5fedb44112b7fabdae07cf1c0f/FLAG11a721096 [2020-07-20 16:25:23,171 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af93c537b/59b34c5fedb44112b7fabdae07cf1c0f [2020-07-20 16:25:23,179 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 16:25:23,181 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 16:25:23,182 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 16:25:23,182 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 16:25:23,186 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 16:25:23,187 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 04:25:23" (1/1) ... [2020-07-20 16:25:23,190 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f146373 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:25:23, skipping insertion in model container [2020-07-20 16:25:23,190 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 04:25:23" (1/1) ... [2020-07-20 16:25:23,198 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 16:25:23,240 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 16:25:23,698 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 16:25:23,713 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 16:25:23,795 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 16:25:23,833 INFO L208 MainTranslator]: Completed translation [2020-07-20 16:25:23,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:25:23 WrapperNode [2020-07-20 16:25:23,834 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 16:25:23,834 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 16:25:23,835 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 16:25:23,835 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 16:25:23,850 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:25:23" (1/1) ... [2020-07-20 16:25:23,850 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:25:23" (1/1) ... [2020-07-20 16:25:23,871 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:25:23" (1/1) ... [2020-07-20 16:25:23,871 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:25:23" (1/1) ... [2020-07-20 16:25:23,906 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:25:23" (1/1) ... [2020-07-20 16:25:23,917 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:25:23" (1/1) ... [2020-07-20 16:25:23,923 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:25:23" (1/1) ... [2020-07-20 16:25:23,931 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 16:25:23,932 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 16:25:23,932 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 16:25:23,932 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 16:25:23,933 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:25:23" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 16:25:24,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 16:25:24,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 16:25:24,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-20 16:25:24,003 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-20 16:25:24,003 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-20 16:25:24,004 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-20 16:25:24,004 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-20 16:25:24,005 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-20 16:25:24,005 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-20 16:25:24,005 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-20 16:25:24,006 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-20 16:25:24,006 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-07-20 16:25:24,006 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-20 16:25:24,006 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-20 16:25:24,007 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-20 16:25:24,007 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-20 16:25:24,008 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 16:25:24,008 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-20 16:25:24,008 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-20 16:25:24,008 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-07-20 16:25:24,009 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-20 16:25:24,009 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-20 16:25:24,010 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-20 16:25:24,010 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-20 16:25:24,011 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-20 16:25:24,012 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-20 16:25:24,012 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-20 16:25:24,013 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-07-20 16:25:24,013 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-20 16:25:24,013 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-20 16:25:24,013 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-20 16:25:24,013 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-20 16:25:24,014 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-20 16:25:24,014 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-07-20 16:25:24,014 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-20 16:25:24,014 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-20 16:25:24,014 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-20 16:25:24,014 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-20 16:25:24,014 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-20 16:25:24,014 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-20 16:25:24,014 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 16:25:24,014 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 16:25:24,015 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-20 16:25:24,015 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-20 16:25:24,015 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-20 16:25:24,015 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-20 16:25:24,015 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-20 16:25:24,016 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-20 16:25:24,016 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-20 16:25:24,016 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-20 16:25:24,016 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-20 16:25:24,016 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-07-20 16:25:24,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-20 16:25:24,016 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-20 16:25:24,016 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-20 16:25:24,017 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-20 16:25:24,017 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-20 16:25:24,017 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-20 16:25:24,017 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-20 16:25:24,017 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-20 16:25:24,017 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-20 16:25:24,017 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-20 16:25:24,018 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-20 16:25:24,018 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 16:25:24,018 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-20 16:25:24,018 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-20 16:25:24,018 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-20 16:25:24,018 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-07-20 16:25:24,018 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-20 16:25:24,018 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-20 16:25:24,018 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-20 16:25:24,019 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-07-20 16:25:24,019 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-07-20 16:25:24,019 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-20 16:25:24,019 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-20 16:25:24,019 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-20 16:25:24,019 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-20 16:25:24,020 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-20 16:25:24,020 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-20 16:25:24,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-20 16:25:24,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-20 16:25:24,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-20 16:25:24,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-20 16:25:24,021 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-20 16:25:24,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-20 16:25:24,022 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-20 16:25:24,022 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-20 16:25:24,022 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-20 16:25:24,022 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-20 16:25:24,022 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-20 16:25:24,022 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-20 16:25:24,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 16:25:24,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-20 16:25:24,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 16:25:25,122 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 16:25:25,123 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-20 16:25:25,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 04:25:25 BoogieIcfgContainer [2020-07-20 16:25:25,128 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 16:25:25,129 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 16:25:25,130 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 16:25:25,133 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 16:25:25,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 04:25:23" (1/3) ... [2020-07-20 16:25:25,134 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e88f232 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 04:25:25, skipping insertion in model container [2020-07-20 16:25:25,134 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:25:23" (2/3) ... [2020-07-20 16:25:25,135 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e88f232 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 04:25:25, skipping insertion in model container [2020-07-20 16:25:25,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 04:25:25" (3/3) ... [2020-07-20 16:25:25,136 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product49.cil.c [2020-07-20 16:25:25,147 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 16:25:25,155 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 16:25:25,170 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 16:25:25,195 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 16:25:25,195 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 16:25:25,196 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 16:25:25,196 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 16:25:25,196 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 16:25:25,196 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 16:25:25,196 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 16:25:25,197 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 16:25:25,222 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states. [2020-07-20 16:25:25,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-20 16:25:25,232 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:25:25,233 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:25:25,234 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:25:25,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:25:25,240 INFO L82 PathProgramCache]: Analyzing trace with hash 916136138, now seen corresponding path program 1 times [2020-07-20 16:25:25,247 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:25:25,247 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1567187052] [2020-07-20 16:25:25,248 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:25,704 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 16:25:25,704 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:25:25,713 INFO L263 TraceCheckSpWp]: Trace formula consists of 618 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-20 16:25:25,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:25:25,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 16:25:25,753 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:25:25,754 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1567187052] [2020-07-20 16:25:25,755 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:25:25,755 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-20 16:25:25,756 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659904387] [2020-07-20 16:25:25,762 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-20 16:25:25,763 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:25:25,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-20 16:25:25,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-20 16:25:25,785 INFO L87 Difference]: Start difference. First operand 171 states. Second operand 2 states. [2020-07-20 16:25:25,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:25:25,833 INFO L93 Difference]: Finished difference Result 256 states and 317 transitions. [2020-07-20 16:25:25,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-20 16:25:25,834 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2020-07-20 16:25:25,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:25:25,850 INFO L225 Difference]: With dead ends: 256 [2020-07-20 16:25:25,850 INFO L226 Difference]: Without dead ends: 128 [2020-07-20 16:25:25,855 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-20 16:25:25,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-07-20 16:25:25,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2020-07-20 16:25:25,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-07-20 16:25:25,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 150 transitions. [2020-07-20 16:25:25,918 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 150 transitions. Word has length 46 [2020-07-20 16:25:25,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:25:25,919 INFO L479 AbstractCegarLoop]: Abstraction has 128 states and 150 transitions. [2020-07-20 16:25:25,919 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-20 16:25:25,920 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 150 transitions. [2020-07-20 16:25:25,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-07-20 16:25:25,923 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:25:25,923 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:25:26,137 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:26,137 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:25:26,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:25:26,138 INFO L82 PathProgramCache]: Analyzing trace with hash -1104947330, now seen corresponding path program 1 times [2020-07-20 16:25:26,138 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:25:26,139 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1893696161] [2020-07-20 16:25:26,139 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:26,634 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 16:25:26,634 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:25:26,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 617 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-20 16:25:26,644 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:25:26,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 16:25:26,682 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:25:26,683 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1893696161] [2020-07-20 16:25:26,683 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:25:26,683 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 16:25:26,683 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480755280] [2020-07-20 16:25:26,685 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 16:25:26,685 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:25:26,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 16:25:26,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 16:25:26,686 INFO L87 Difference]: Start difference. First operand 128 states and 150 transitions. Second operand 3 states. [2020-07-20 16:25:26,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:25:26,710 INFO L93 Difference]: Finished difference Result 205 states and 239 transitions. [2020-07-20 16:25:26,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 16:25:26,710 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2020-07-20 16:25:26,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:25:26,713 INFO L225 Difference]: With dead ends: 205 [2020-07-20 16:25:26,713 INFO L226 Difference]: Without dead ends: 119 [2020-07-20 16:25:26,717 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 16:25:26,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-07-20 16:25:26,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2020-07-20 16:25:26,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2020-07-20 16:25:26,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 138 transitions. [2020-07-20 16:25:26,736 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 138 transitions. Word has length 47 [2020-07-20 16:25:26,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:25:26,736 INFO L479 AbstractCegarLoop]: Abstraction has 119 states and 138 transitions. [2020-07-20 16:25:26,737 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 16:25:26,737 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 138 transitions. [2020-07-20 16:25:26,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-20 16:25:26,744 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:25:26,744 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:25:26,958 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:26,959 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:25:26,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:25:26,960 INFO L82 PathProgramCache]: Analyzing trace with hash -1852359913, now seen corresponding path program 1 times [2020-07-20 16:25:26,961 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:25:26,962 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2009225946] [2020-07-20 16:25:26,962 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:27,401 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 16:25:27,402 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:25:27,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 645 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-20 16:25:27,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:25:27,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 16:25:27,438 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:25:27,438 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2009225946] [2020-07-20 16:25:27,439 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:25:27,439 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 16:25:27,439 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539613635] [2020-07-20 16:25:27,440 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 16:25:27,440 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:25:27,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 16:25:27,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 16:25:27,441 INFO L87 Difference]: Start difference. First operand 119 states and 138 transitions. Second operand 3 states. [2020-07-20 16:25:27,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:25:27,464 INFO L93 Difference]: Finished difference Result 214 states and 253 transitions. [2020-07-20 16:25:27,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 16:25:27,464 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2020-07-20 16:25:27,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:25:27,467 INFO L225 Difference]: With dead ends: 214 [2020-07-20 16:25:27,467 INFO L226 Difference]: Without dead ends: 119 [2020-07-20 16:25:27,468 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 16:25:27,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-07-20 16:25:27,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2020-07-20 16:25:27,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2020-07-20 16:25:27,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 137 transitions. [2020-07-20 16:25:27,480 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 137 transitions. Word has length 51 [2020-07-20 16:25:27,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:25:27,481 INFO L479 AbstractCegarLoop]: Abstraction has 119 states and 137 transitions. [2020-07-20 16:25:27,481 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 16:25:27,481 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 137 transitions. [2020-07-20 16:25:27,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-07-20 16:25:27,483 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:25:27,483 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:25:27,698 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:27,698 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:25:27,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:25:27,699 INFO L82 PathProgramCache]: Analyzing trace with hash 458129541, now seen corresponding path program 1 times [2020-07-20 16:25:27,699 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:25:27,700 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [500205548] [2020-07-20 16:25:27,701 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:28,111 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 16:25:28,111 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:25:28,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 643 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 16:25:28,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:25:28,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 16:25:28,175 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:25:28,175 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [500205548] [2020-07-20 16:25:28,176 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:25:28,176 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 16:25:28,176 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635098333] [2020-07-20 16:25:28,177 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 16:25:28,177 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:25:28,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 16:25:28,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-20 16:25:28,178 INFO L87 Difference]: Start difference. First operand 119 states and 137 transitions. Second operand 6 states. [2020-07-20 16:25:28,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:25:28,772 INFO L93 Difference]: Finished difference Result 290 states and 351 transitions. [2020-07-20 16:25:28,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 16:25:28,780 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 64 [2020-07-20 16:25:28,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:25:28,783 INFO L225 Difference]: With dead ends: 290 [2020-07-20 16:25:28,783 INFO L226 Difference]: Without dead ends: 195 [2020-07-20 16:25:28,784 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-20 16:25:28,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2020-07-20 16:25:28,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 180. [2020-07-20 16:25:28,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2020-07-20 16:25:28,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 203 transitions. [2020-07-20 16:25:28,828 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 203 transitions. Word has length 64 [2020-07-20 16:25:28,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:25:28,829 INFO L479 AbstractCegarLoop]: Abstraction has 180 states and 203 transitions. [2020-07-20 16:25:28,829 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 16:25:28,829 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 203 transitions. [2020-07-20 16:25:28,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-07-20 16:25:28,832 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:25:28,832 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:25:29,047 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:29,048 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:25:29,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:25:29,049 INFO L82 PathProgramCache]: Analyzing trace with hash -1170867649, now seen corresponding path program 1 times [2020-07-20 16:25:29,049 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:25:29,049 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [492315075] [2020-07-20 16:25:29,050 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:29,543 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 16:25:29,544 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:25:29,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 705 conjuncts, 14 conjunts are in the unsatisfiable core [2020-07-20 16:25:29,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:25:29,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 16:25:29,607 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:25:29,607 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [492315075] [2020-07-20 16:25:29,607 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:25:29,608 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 16:25:29,608 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129532458] [2020-07-20 16:25:29,608 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 16:25:29,609 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:25:29,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 16:25:29,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-20 16:25:29,609 INFO L87 Difference]: Start difference. First operand 180 states and 203 transitions. Second operand 6 states. [2020-07-20 16:25:29,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:25:29,848 INFO L93 Difference]: Finished difference Result 436 states and 522 transitions. [2020-07-20 16:25:29,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 16:25:29,848 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 78 [2020-07-20 16:25:29,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:25:29,854 INFO L225 Difference]: With dead ends: 436 [2020-07-20 16:25:29,854 INFO L226 Difference]: Without dead ends: 280 [2020-07-20 16:25:29,856 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-20 16:25:29,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2020-07-20 16:25:29,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 280. [2020-07-20 16:25:29,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2020-07-20 16:25:29,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 331 transitions. [2020-07-20 16:25:29,886 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 331 transitions. Word has length 78 [2020-07-20 16:25:29,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:25:29,887 INFO L479 AbstractCegarLoop]: Abstraction has 280 states and 331 transitions. [2020-07-20 16:25:29,887 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 16:25:29,887 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 331 transitions. [2020-07-20 16:25:29,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-07-20 16:25:29,889 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:25:29,890 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:25:30,102 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:30,103 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:25:30,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:25:30,104 INFO L82 PathProgramCache]: Analyzing trace with hash -772272072, now seen corresponding path program 1 times [2020-07-20 16:25:30,104 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:25:30,105 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [736986188] [2020-07-20 16:25:30,105 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:30,492 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 16:25:30,492 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:25:30,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 756 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 16:25:30,500 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:25:30,549 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-20 16:25:30,549 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:25:30,549 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [736986188] [2020-07-20 16:25:30,549 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:25:30,550 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 16:25:30,550 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58417052] [2020-07-20 16:25:30,551 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 16:25:30,551 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:25:30,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 16:25:30,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-20 16:25:30,552 INFO L87 Difference]: Start difference. First operand 280 states and 331 transitions. Second operand 6 states. [2020-07-20 16:25:30,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:25:30,596 INFO L93 Difference]: Finished difference Result 546 states and 660 transitions. [2020-07-20 16:25:30,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 16:25:30,596 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 128 [2020-07-20 16:25:30,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:25:30,600 INFO L225 Difference]: With dead ends: 546 [2020-07-20 16:25:30,600 INFO L226 Difference]: Without dead ends: 290 [2020-07-20 16:25:30,601 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-20 16:25:30,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2020-07-20 16:25:30,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 290. [2020-07-20 16:25:30,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2020-07-20 16:25:30,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 342 transitions. [2020-07-20 16:25:30,644 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 342 transitions. Word has length 128 [2020-07-20 16:25:30,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:25:30,645 INFO L479 AbstractCegarLoop]: Abstraction has 290 states and 342 transitions. [2020-07-20 16:25:30,645 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 16:25:30,646 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 342 transitions. [2020-07-20 16:25:30,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-07-20 16:25:30,647 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:25:30,649 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-20 16:25:30,856 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:30,857 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:25:30,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:25:30,858 INFO L82 PathProgramCache]: Analyzing trace with hash -532032326, now seen corresponding path program 1 times [2020-07-20 16:25:30,858 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:25:30,859 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [500299318] [2020-07-20 16:25:30,860 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:31,033 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-20 16:25:31,034 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:25:31,035 INFO L263 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-20 16:25:31,039 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:25:31,073 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-20 16:25:31,073 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:25:31,074 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [500299318] [2020-07-20 16:25:31,074 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:25:31,074 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 16:25:31,074 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121048882] [2020-07-20 16:25:31,075 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 16:25:31,075 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:25:31,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 16:25:31,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 16:25:31,076 INFO L87 Difference]: Start difference. First operand 290 states and 342 transitions. Second operand 5 states. [2020-07-20 16:25:31,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:25:31,103 INFO L93 Difference]: Finished difference Result 547 states and 664 transitions. [2020-07-20 16:25:31,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 16:25:31,103 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 128 [2020-07-20 16:25:31,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:25:31,106 INFO L225 Difference]: With dead ends: 547 [2020-07-20 16:25:31,106 INFO L226 Difference]: Without dead ends: 281 [2020-07-20 16:25:31,108 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 16:25:31,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2020-07-20 16:25:31,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 281. [2020-07-20 16:25:31,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 281 states. [2020-07-20 16:25:31,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 330 transitions. [2020-07-20 16:25:31,129 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 330 transitions. Word has length 128 [2020-07-20 16:25:31,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:25:31,129 INFO L479 AbstractCegarLoop]: Abstraction has 281 states and 330 transitions. [2020-07-20 16:25:31,130 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 16:25:31,130 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 330 transitions. [2020-07-20 16:25:31,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-07-20 16:25:31,132 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:25:31,132 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:25:31,344 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:31,345 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:25:31,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:25:31,346 INFO L82 PathProgramCache]: Analyzing trace with hash -2017087877, now seen corresponding path program 1 times [2020-07-20 16:25:31,346 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:25:31,347 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1191292382] [2020-07-20 16:25:31,347 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:31,578 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-20 16:25:31,578 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:25:31,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 704 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-20 16:25:31,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:25:31,639 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 16:25:31,639 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:25:31,639 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1191292382] [2020-07-20 16:25:31,640 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:25:31,640 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 16:25:31,640 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044140989] [2020-07-20 16:25:31,641 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 16:25:31,641 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:25:31,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 16:25:31,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-20 16:25:31,641 INFO L87 Difference]: Start difference. First operand 281 states and 330 transitions. Second operand 6 states. [2020-07-20 16:25:32,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:25:32,350 INFO L93 Difference]: Finished difference Result 747 states and 938 transitions. [2020-07-20 16:25:32,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 16:25:32,351 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 128 [2020-07-20 16:25:32,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:25:32,355 INFO L225 Difference]: With dead ends: 747 [2020-07-20 16:25:32,355 INFO L226 Difference]: Without dead ends: 490 [2020-07-20 16:25:32,356 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-20 16:25:32,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2020-07-20 16:25:32,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 475. [2020-07-20 16:25:32,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 475 states. [2020-07-20 16:25:32,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 572 transitions. [2020-07-20 16:25:32,388 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 572 transitions. Word has length 128 [2020-07-20 16:25:32,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:25:32,388 INFO L479 AbstractCegarLoop]: Abstraction has 475 states and 572 transitions. [2020-07-20 16:25:32,388 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 16:25:32,388 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 572 transitions. [2020-07-20 16:25:32,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-07-20 16:25:32,391 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:25:32,391 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:25:32,600 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:32,601 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:25:32,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:25:32,602 INFO L82 PathProgramCache]: Analyzing trace with hash 759278389, now seen corresponding path program 1 times [2020-07-20 16:25:32,602 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:25:32,603 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1347535719] [2020-07-20 16:25:32,603 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:32,955 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 16:25:32,955 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:25:32,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 832 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 16:25:32,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:25:33,045 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 16:25:33,046 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 16:25:33,411 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 18 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-20 16:25:33,412 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1347535719] [2020-07-20 16:25:33,412 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 16:25:33,412 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2020-07-20 16:25:33,412 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796342879] [2020-07-20 16:25:33,413 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-20 16:25:33,413 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:25:33,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-20 16:25:33,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-07-20 16:25:33,414 INFO L87 Difference]: Start difference. First operand 475 states and 572 transitions. Second operand 12 states. [2020-07-20 16:25:34,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:25:34,865 INFO L93 Difference]: Finished difference Result 1238 states and 1602 transitions. [2020-07-20 16:25:34,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-07-20 16:25:34,866 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 132 [2020-07-20 16:25:34,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:25:34,873 INFO L225 Difference]: With dead ends: 1238 [2020-07-20 16:25:34,873 INFO L226 Difference]: Without dead ends: 787 [2020-07-20 16:25:34,876 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 252 SyntacticMatches, 6 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=148, Invalid=358, Unknown=0, NotChecked=0, Total=506 [2020-07-20 16:25:34,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2020-07-20 16:25:34,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 630. [2020-07-20 16:25:34,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 630 states. [2020-07-20 16:25:34,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 630 states to 630 states and 749 transitions. [2020-07-20 16:25:34,953 INFO L78 Accepts]: Start accepts. Automaton has 630 states and 749 transitions. Word has length 132 [2020-07-20 16:25:34,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:25:34,954 INFO L479 AbstractCegarLoop]: Abstraction has 630 states and 749 transitions. [2020-07-20 16:25:34,954 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-20 16:25:34,954 INFO L276 IsEmpty]: Start isEmpty. Operand 630 states and 749 transitions. [2020-07-20 16:25:34,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-07-20 16:25:34,957 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:25:34,958 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-20 16:25:35,170 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:35,171 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:25:35,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:25:35,171 INFO L82 PathProgramCache]: Analyzing trace with hash 1146941899, now seen corresponding path program 1 times [2020-07-20 16:25:35,171 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:25:35,172 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2053982256] [2020-07-20 16:25:35,172 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:35,554 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 16:25:35,555 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:25:35,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 870 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-20 16:25:35,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:25:35,648 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-20 16:25:35,650 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 16:25:35,714 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 79 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-07-20 16:25:35,714 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 16:25:36,008 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 16:25:36,068 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-07-20 16:25:36,069 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 16:25:36,125 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-07-20 16:25:36,125 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 16:25:36,147 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-07-20 16:25:36,149 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 16:25:36,187 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 16:25:36,387 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 47 proven. 23 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2020-07-20 16:25:36,388 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2053982256] [2020-07-20 16:25:36,388 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 16:25:36,388 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 16 [2020-07-20 16:25:36,389 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124168580] [2020-07-20 16:25:36,390 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-07-20 16:25:36,390 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:25:36,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-07-20 16:25:36,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2020-07-20 16:25:36,391 INFO L87 Difference]: Start difference. First operand 630 states and 749 transitions. Second operand 16 states. [2020-07-20 16:25:38,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:25:38,407 INFO L93 Difference]: Finished difference Result 1775 states and 2293 transitions. [2020-07-20 16:25:38,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-07-20 16:25:38,408 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 185 [2020-07-20 16:25:38,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:25:38,420 INFO L225 Difference]: With dead ends: 1775 [2020-07-20 16:25:38,421 INFO L226 Difference]: Without dead ends: 1215 [2020-07-20 16:25:38,424 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 386 GetRequests, 360 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=174, Invalid=528, Unknown=0, NotChecked=0, Total=702 [2020-07-20 16:25:38,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1215 states. [2020-07-20 16:25:38,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1215 to 943. [2020-07-20 16:25:38,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 943 states. [2020-07-20 16:25:38,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 943 states to 943 states and 1109 transitions. [2020-07-20 16:25:38,519 INFO L78 Accepts]: Start accepts. Automaton has 943 states and 1109 transitions. Word has length 185 [2020-07-20 16:25:38,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:25:38,520 INFO L479 AbstractCegarLoop]: Abstraction has 943 states and 1109 transitions. [2020-07-20 16:25:38,520 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-07-20 16:25:38,520 INFO L276 IsEmpty]: Start isEmpty. Operand 943 states and 1109 transitions. [2020-07-20 16:25:38,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-07-20 16:25:38,523 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:25:38,524 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-20 16:25:38,737 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:38,738 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:25:38,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:25:38,738 INFO L82 PathProgramCache]: Analyzing trace with hash 89103821, now seen corresponding path program 1 times [2020-07-20 16:25:38,738 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:25:38,739 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1504010931] [2020-07-20 16:25:38,739 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:39,107 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 16:25:39,107 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:25:39,112 INFO L263 TraceCheckSpWp]: Trace formula consists of 871 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 16:25:39,117 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:25:39,157 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-07-20 16:25:39,158 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:25:39,158 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1504010931] [2020-07-20 16:25:39,158 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:25:39,158 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 16:25:39,159 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449410184] [2020-07-20 16:25:39,159 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 16:25:39,159 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:25:39,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 16:25:39,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-20 16:25:39,160 INFO L87 Difference]: Start difference. First operand 943 states and 1109 transitions. Second operand 6 states. [2020-07-20 16:25:39,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:25:39,202 INFO L93 Difference]: Finished difference Result 1218 states and 1427 transitions. [2020-07-20 16:25:39,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 16:25:39,202 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 185 [2020-07-20 16:25:39,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:25:39,204 INFO L225 Difference]: With dead ends: 1218 [2020-07-20 16:25:39,204 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 16:25:39,207 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-20 16:25:39,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 16:25:39,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 16:25:39,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 16:25:39,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 16:25:39,208 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 185 [2020-07-20 16:25:39,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:25:39,208 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 16:25:39,208 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 16:25:39,208 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 16:25:39,209 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 16:25:39,421 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:39,424 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 16:25:40,603 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 30 [2020-07-20 16:25:40,807 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 24 [2020-07-20 16:25:41,066 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 24 [2020-07-20 16:25:41,293 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 26 [2020-07-20 16:25:41,628 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 21 [2020-07-20 16:25:41,761 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 28 [2020-07-20 16:25:42,311 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 24 [2020-07-20 16:25:42,452 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 24 [2020-07-20 16:25:42,876 INFO L268 CegarLoopResult]: For program point L672(lines 672 676) no Hoare annotation was computed. [2020-07-20 16:25:42,876 INFO L268 CegarLoopResult]: For program point L672-1(lines 672 676) no Hoare annotation was computed. [2020-07-20 16:25:42,877 INFO L268 CegarLoopResult]: For program point L667(line 667) no Hoare annotation was computed. [2020-07-20 16:25:42,877 INFO L268 CegarLoopResult]: For program point L666-2(lines 666 687) no Hoare annotation was computed. [2020-07-20 16:25:42,877 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeFINAL(lines 641 696) no Hoare annotation was computed. [2020-07-20 16:25:42,877 INFO L268 CegarLoopResult]: For program point L688(lines 665 689) no Hoare annotation was computed. [2020-07-20 16:25:42,877 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeEXIT(lines 641 696) no Hoare annotation was computed. [2020-07-20 16:25:42,877 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeENTRY(lines 641 696) no Hoare annotation was computed. [2020-07-20 16:25:42,878 INFO L268 CegarLoopResult]: For program point L729(lines 729 733) no Hoare annotation was computed. [2020-07-20 16:25:42,878 INFO L268 CegarLoopResult]: For program point L729-1(lines 729 733) no Hoare annotation was computed. [2020-07-20 16:25:42,878 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetFINAL(lines 697 756) no Hoare annotation was computed. [2020-07-20 16:25:42,878 INFO L268 CegarLoopResult]: For program point L724(line 724) no Hoare annotation was computed. [2020-07-20 16:25:42,878 INFO L268 CegarLoopResult]: For program point L723-2(lines 723 748) no Hoare annotation was computed. [2020-07-20 16:25:42,878 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetENTRY(lines 697 756) no Hoare annotation was computed. [2020-07-20 16:25:42,878 INFO L268 CegarLoopResult]: For program point L749(lines 722 750) no Hoare annotation was computed. [2020-07-20 16:25:42,878 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetEXIT(lines 697 756) no Hoare annotation was computed. [2020-07-20 16:25:42,878 INFO L268 CegarLoopResult]: For program point L742(line 742) no Hoare annotation was computed. [2020-07-20 16:25:42,878 INFO L268 CegarLoopResult]: For program point L742-1(line 742) no Hoare annotation was computed. [2020-07-20 16:25:42,878 INFO L271 CegarLoopResult]: At program point select_helpersFINAL(lines 546 552) the Hoare annotation is: true [2020-07-20 16:25:42,879 INFO L268 CegarLoopResult]: For program point select_helpersEXIT(lines 546 552) no Hoare annotation was computed. [2020-07-20 16:25:42,879 INFO L268 CegarLoopResult]: For program point valid_productEXIT(lines 553 561) no Hoare annotation was computed. [2020-07-20 16:25:42,879 INFO L271 CegarLoopResult]: At program point valid_productENTRY(lines 553 561) the Hoare annotation is: true [2020-07-20 16:25:42,879 INFO L268 CegarLoopResult]: For program point valid_productFINAL(lines 553 561) no Hoare annotation was computed. [2020-07-20 16:25:42,879 INFO L264 CegarLoopResult]: At program point L577(line 577) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0)))) (and (or (not (<= 1 ~waterLevel~0)) .cse0 (not (= 0 ~pumpRunning~0))) (or .cse0 (not (<= 2 ~waterLevel~0))))) [2020-07-20 16:25:42,879 INFO L268 CegarLoopResult]: For program point L575(lines 575 581) no Hoare annotation was computed. [2020-07-20 16:25:42,879 INFO L271 CegarLoopResult]: At program point __utac_acc__Specification4_spec__1ENTRY(lines 563 587) the Hoare annotation is: true [2020-07-20 16:25:42,879 INFO L264 CegarLoopResult]: At program point L573(line 573) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0)))) (and (or (not (<= 1 ~waterLevel~0)) .cse0 (not (= 0 ~pumpRunning~0))) (or .cse0 (not (<= 2 ~waterLevel~0))))) [2020-07-20 16:25:42,879 INFO L268 CegarLoopResult]: For program point L573-1(line 573) no Hoare annotation was computed. [2020-07-20 16:25:42,880 INFO L268 CegarLoopResult]: For program point L571(lines 571 584) no Hoare annotation was computed. [2020-07-20 16:25:42,880 INFO L268 CegarLoopResult]: For program point L571-1(lines 563 587) no Hoare annotation was computed. [2020-07-20 16:25:42,880 INFO L271 CegarLoopResult]: At program point L569(line 569) the Hoare annotation is: true [2020-07-20 16:25:42,880 INFO L268 CegarLoopResult]: For program point L569-1(line 569) no Hoare annotation was computed. [2020-07-20 16:25:42,880 INFO L268 CegarLoopResult]: For program point __utac_acc__Specification4_spec__1EXIT(lines 563 587) no Hoare annotation was computed. [2020-07-20 16:25:42,880 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 238 260) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (and (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|))) [2020-07-20 16:25:42,880 INFO L264 CegarLoopResult]: At program point L250(line 250) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (and (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|))) [2020-07-20 16:25:42,881 INFO L264 CegarLoopResult]: At program point L250-1(line 250) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (and (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|))) [2020-07-20 16:25:42,881 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 238 260) no Hoare annotation was computed. [2020-07-20 16:25:42,881 INFO L268 CegarLoopResult]: For program point L248(lines 248 255) no Hoare annotation was computed. [2020-07-20 16:25:42,881 INFO L268 CegarLoopResult]: For program point L248-1(lines 248 255) no Hoare annotation was computed. [2020-07-20 16:25:42,881 INFO L268 CegarLoopResult]: For program point L246(line 246) no Hoare annotation was computed. [2020-07-20 16:25:42,881 INFO L264 CegarLoopResult]: At program point L245(line 245) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (and (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|))) [2020-07-20 16:25:42,881 INFO L264 CegarLoopResult]: At program point L244(line 244) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (and (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|))) [2020-07-20 16:25:42,882 INFO L264 CegarLoopResult]: At program point L244-1(line 244) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (and (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|))) [2020-07-20 16:25:42,882 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 238 260) no Hoare annotation was computed. [2020-07-20 16:25:42,882 INFO L268 CegarLoopResult]: For program point Specification2EXIT(lines 193 216) no Hoare annotation was computed. [2020-07-20 16:25:42,882 INFO L268 CegarLoopResult]: For program point Specification2ENTRY(lines 193 216) no Hoare annotation was computed. [2020-07-20 16:25:42,882 INFO L268 CegarLoopResult]: For program point Specification2FINAL(lines 193 216) no Hoare annotation was computed. [2020-07-20 16:25:42,882 INFO L268 CegarLoopResult]: For program point L211(line 211) no Hoare annotation was computed. [2020-07-20 16:25:42,882 INFO L268 CegarLoopResult]: For program point L210(line 210) no Hoare annotation was computed. [2020-07-20 16:25:42,882 INFO L268 CegarLoopResult]: For program point L209(line 209) no Hoare annotation was computed. [2020-07-20 16:25:42,882 INFO L268 CegarLoopResult]: For program point L208(line 208) no Hoare annotation was computed. [2020-07-20 16:25:42,882 INFO L268 CegarLoopResult]: For program point L207(line 207) no Hoare annotation was computed. [2020-07-20 16:25:42,882 INFO L268 CegarLoopResult]: For program point L206(line 206) no Hoare annotation was computed. [2020-07-20 16:25:42,883 INFO L268 CegarLoopResult]: For program point L205(line 205) no Hoare annotation was computed. [2020-07-20 16:25:42,883 INFO L268 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-07-20 16:25:42,883 INFO L268 CegarLoopResult]: For program point L203(line 203) no Hoare annotation was computed. [2020-07-20 16:25:42,883 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-07-20 16:25:42,883 INFO L268 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-07-20 16:25:42,883 INFO L268 CegarLoopResult]: For program point L200(line 200) no Hoare annotation was computed. [2020-07-20 16:25:42,883 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-07-20 16:25:42,883 INFO L268 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-07-20 16:25:42,883 INFO L268 CegarLoopResult]: For program point isPumpRunningEXIT(lines 379 387) no Hoare annotation was computed. [2020-07-20 16:25:42,883 INFO L271 CegarLoopResult]: At program point isPumpRunningENTRY(lines 379 387) the Hoare annotation is: true [2020-07-20 16:25:42,883 INFO L268 CegarLoopResult]: For program point isPumpRunningFINAL(lines 379 387) no Hoare annotation was computed. [2020-07-20 16:25:42,883 INFO L268 CegarLoopResult]: For program point L450-1(line 450) no Hoare annotation was computed. [2020-07-20 16:25:42,883 INFO L271 CegarLoopResult]: At program point isLowWaterLevelENTRY(lines 443 461) the Hoare annotation is: true [2020-07-20 16:25:42,884 INFO L268 CegarLoopResult]: For program point isLowWaterLevelEXIT(lines 443 461) no Hoare annotation was computed. [2020-07-20 16:25:42,884 INFO L268 CegarLoopResult]: For program point L452(lines 452 456) no Hoare annotation was computed. [2020-07-20 16:25:42,884 INFO L271 CegarLoopResult]: At program point L450(line 450) the Hoare annotation is: true [2020-07-20 16:25:42,884 INFO L268 CegarLoopResult]: For program point L452-2(lines 452 456) no Hoare annotation was computed. [2020-07-20 16:25:42,884 INFO L268 CegarLoopResult]: For program point isLowWaterLevelFINAL(lines 443 461) no Hoare annotation was computed. [2020-07-20 16:25:42,884 INFO L268 CegarLoopResult]: For program point L418-1(line 418) no Hoare annotation was computed. [2020-07-20 16:25:42,884 INFO L268 CegarLoopResult]: For program point L407(lines 407 415) no Hoare annotation was computed. [2020-07-20 16:25:42,884 INFO L268 CegarLoopResult]: For program point L407-2(lines 407 415) no Hoare annotation was computed. [2020-07-20 16:25:42,884 INFO L268 CegarLoopResult]: For program point printPumpFINAL(lines 388 423) no Hoare annotation was computed. [2020-07-20 16:25:42,884 INFO L268 CegarLoopResult]: For program point L395(lines 395 403) no Hoare annotation was computed. [2020-07-20 16:25:42,884 INFO L268 CegarLoopResult]: For program point L395-2(lines 395 403) no Hoare annotation was computed. [2020-07-20 16:25:42,884 INFO L268 CegarLoopResult]: For program point printPumpENTRY(lines 388 423) no Hoare annotation was computed. [2020-07-20 16:25:42,884 INFO L268 CegarLoopResult]: For program point printPumpEXIT(lines 388 423) no Hoare annotation was computed. [2020-07-20 16:25:42,885 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-20 16:25:42,885 INFO L268 CegarLoopResult]: For program point select_featuresEXIT(lines 539 545) no Hoare annotation was computed. [2020-07-20 16:25:42,885 INFO L271 CegarLoopResult]: At program point select_featuresFINAL(lines 539 545) the Hoare annotation is: true [2020-07-20 16:25:42,885 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setENTRY(lines 595 640) no Hoare annotation was computed. [2020-07-20 16:25:42,885 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setEXIT(lines 595 640) no Hoare annotation was computed. [2020-07-20 16:25:42,885 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setFINAL(lines 595 640) no Hoare annotation was computed. [2020-07-20 16:25:42,885 INFO L268 CegarLoopResult]: For program point L928(lines 928 935) no Hoare annotation was computed. [2020-07-20 16:25:42,885 INFO L268 CegarLoopResult]: For program point L922(lines 922 942) no Hoare annotation was computed. [2020-07-20 16:25:42,885 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeFINAL(lines 908 953) no Hoare annotation was computed. [2020-07-20 16:25:42,886 INFO L268 CegarLoopResult]: For program point L922-1(lines 922 942) no Hoare annotation was computed. [2020-07-20 16:25:42,886 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeENTRY(lines 908 953) no Hoare annotation was computed. [2020-07-20 16:25:42,886 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeEXIT(lines 908 953) no Hoare annotation was computed. [2020-07-20 16:25:42,886 INFO L264 CegarLoopResult]: At program point runTestENTRY(lines 225 234) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (and (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|))) [2020-07-20 16:25:42,886 INFO L268 CegarLoopResult]: For program point runTestEXIT(lines 225 234) no Hoare annotation was computed. [2020-07-20 16:25:42,886 INFO L268 CegarLoopResult]: For program point runTestFINAL(lines 225 234) no Hoare annotation was computed. [2020-07-20 16:25:42,886 INFO L268 CegarLoopResult]: For program point isMethaneAlarmENTRY(lines 368 378) no Hoare annotation was computed. [2020-07-20 16:25:42,886 INFO L268 CegarLoopResult]: For program point isMethaneAlarmEXIT(lines 368 378) no Hoare annotation was computed. [2020-07-20 16:25:42,886 INFO L268 CegarLoopResult]: For program point isMethaneAlarmFINAL(lines 368 378) no Hoare annotation was computed. [2020-07-20 16:25:42,887 INFO L268 CegarLoopResult]: For program point L373(line 373) no Hoare annotation was computed. [2020-07-20 16:25:42,887 INFO L268 CegarLoopResult]: For program point L373-1(line 373) no Hoare annotation was computed. [2020-07-20 16:25:42,887 INFO L264 CegarLoopResult]: At program point deactivatePumpENTRY(lines 360 367) the Hoare annotation is: (or (= 0 |old(~pumpRunning~0)|) (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0)) (= ~pumpRunning~0 |old(~pumpRunning~0)|)) [2020-07-20 16:25:42,887 INFO L268 CegarLoopResult]: For program point deactivatePumpEXIT(lines 360 367) no Hoare annotation was computed. [2020-07-20 16:25:42,887 INFO L268 CegarLoopResult]: For program point deactivatePumpFINAL(lines 360 367) no Hoare annotation was computed. [2020-07-20 16:25:42,887 INFO L268 CegarLoopResult]: For program point L140(lines 140 146) no Hoare annotation was computed. [2020-07-20 16:25:42,887 INFO L268 CegarLoopResult]: For program point isHighWaterSensorDryEXIT(lines 136 149) no Hoare annotation was computed. [2020-07-20 16:25:42,887 INFO L271 CegarLoopResult]: At program point isHighWaterSensorDryENTRY(lines 136 149) the Hoare annotation is: true [2020-07-20 16:25:42,887 INFO L268 CegarLoopResult]: For program point isHighWaterSensorDryFINAL(lines 136 149) no Hoare annotation was computed. [2020-07-20 16:25:42,887 INFO L264 CegarLoopResult]: At program point L346(line 346) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (= 0 ~pumpRunning~0)) (or (= 0 |old(~pumpRunning~0)|) .cse0 .cse1))) [2020-07-20 16:25:42,887 INFO L268 CegarLoopResult]: For program point L346-1(lines 327 351) no Hoare annotation was computed. [2020-07-20 16:25:42,888 INFO L268 CegarLoopResult]: For program point processEnvironmentEXIT(lines 327 351) no Hoare annotation was computed. [2020-07-20 16:25:42,888 INFO L264 CegarLoopResult]: At program point L341(line 341) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0))) [2020-07-20 16:25:42,888 INFO L264 CegarLoopResult]: At program point processEnvironmentENTRY(lines 327 351) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0)) (= ~pumpRunning~0 |old(~pumpRunning~0)|)) [2020-07-20 16:25:42,888 INFO L264 CegarLoopResult]: At program point L337(line 337) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (= 0 |old(~pumpRunning~0)|))) (or .cse0 .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 processEnvironment_~tmp~2))))) [2020-07-20 16:25:42,888 INFO L268 CegarLoopResult]: For program point L335(lines 335 343) no Hoare annotation was computed. [2020-07-20 16:25:42,888 INFO L264 CegarLoopResult]: At program point L333(line 333) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (= 0 |old(~pumpRunning~0)|))) (or .cse0 .cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|)))) [2020-07-20 16:25:42,888 INFO L268 CegarLoopResult]: For program point L333-1(line 333) no Hoare annotation was computed. [2020-07-20 16:25:42,888 INFO L268 CegarLoopResult]: For program point L331(lines 331 348) no Hoare annotation was computed. [2020-07-20 16:25:42,888 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__baseEXIT(lines 293 299) no Hoare annotation was computed. [2020-07-20 16:25:42,888 INFO L271 CegarLoopResult]: At program point processEnvironment__wrappee__baseFINAL(lines 293 299) the Hoare annotation is: true [2020-07-20 16:25:42,889 INFO L264 CegarLoopResult]: At program point testENTRY(lines 463 526) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (and (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|))) [2020-07-20 16:25:42,889 INFO L268 CegarLoopResult]: For program point L475(lines 475 479) no Hoare annotation was computed. [2020-07-20 16:25:42,889 INFO L268 CegarLoopResult]: For program point testFINAL(lines 463 526) no Hoare annotation was computed. [2020-07-20 16:25:42,889 INFO L264 CegarLoopResult]: At program point L519(lines 472 520) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 ~systemActive~0))) [2020-07-20 16:25:42,889 INFO L268 CegarLoopResult]: For program point L509(lines 509 513) no Hoare annotation was computed. [2020-07-20 16:25:42,889 INFO L264 CegarLoopResult]: At program point L509-2(lines 503 514) the Hoare annotation is: (let ((.cse0 (<= test_~splverifierCounter~0 0))) (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (and (<= 2 ~waterLevel~0) .cse0) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 1 ~waterLevel~0) (= 0 ~pumpRunning~0) .cse0) (not (<= 1 |old(~waterLevel~0)|)))) [2020-07-20 16:25:42,889 INFO L268 CegarLoopResult]: For program point L474(lines 473 518) no Hoare annotation was computed. [2020-07-20 16:25:42,889 INFO L268 CegarLoopResult]: For program point L503(lines 503 514) no Hoare annotation was computed. [2020-07-20 16:25:42,889 INFO L264 CegarLoopResult]: At program point L495(line 495) the Hoare annotation is: (let ((.cse0 (<= test_~splverifierCounter~0 0))) (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (and (<= 2 ~waterLevel~0) .cse0) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 1 ~waterLevel~0) (= 0 ~pumpRunning~0) .cse0) (not (<= 1 |old(~waterLevel~0)|)))) [2020-07-20 16:25:42,889 INFO L268 CegarLoopResult]: For program point L493(lines 493 499) no Hoare annotation was computed. [2020-07-20 16:25:42,889 INFO L268 CegarLoopResult]: For program point L493-1(lines 493 499) no Hoare annotation was computed. [2020-07-20 16:25:42,890 INFO L264 CegarLoopResult]: At program point L485(line 485) the Hoare annotation is: (let ((.cse0 (<= test_~splverifierCounter~0 0))) (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (and (<= 2 ~waterLevel~0) .cse0) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 1 ~waterLevel~0) (= 0 ~pumpRunning~0) .cse0) (not (<= 1 |old(~waterLevel~0)|)))) [2020-07-20 16:25:42,890 INFO L264 CegarLoopResult]: At program point L516(lines 473 518) the Hoare annotation is: (let ((.cse0 (<= test_~splverifierCounter~0 0))) (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (and (<= 2 ~waterLevel~0) .cse0) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 1 ~waterLevel~0) (= 0 ~pumpRunning~0) .cse0) (not (<= 1 |old(~waterLevel~0)|)))) [2020-07-20 16:25:42,890 INFO L268 CegarLoopResult]: For program point L483(lines 483 489) no Hoare annotation was computed. [2020-07-20 16:25:42,890 INFO L268 CegarLoopResult]: For program point testEXIT(lines 463 526) no Hoare annotation was computed. [2020-07-20 16:25:42,890 INFO L268 CegarLoopResult]: For program point L483-1(lines 483 489) no Hoare annotation was computed. [2020-07-20 16:25:42,890 INFO L268 CegarLoopResult]: For program point __utac__get_this_argENTRY(lines 862 907) no Hoare annotation was computed. [2020-07-20 16:25:42,890 INFO L268 CegarLoopResult]: For program point __utac__get_this_argEXIT(lines 862 907) no Hoare annotation was computed. [2020-07-20 16:25:42,890 INFO L268 CegarLoopResult]: For program point L882(lines 882 889) no Hoare annotation was computed. [2020-07-20 16:25:42,890 INFO L268 CegarLoopResult]: For program point __utac__get_this_argFINAL(lines 862 907) no Hoare annotation was computed. [2020-07-20 16:25:42,890 INFO L268 CegarLoopResult]: For program point L876(lines 876 896) no Hoare annotation was computed. [2020-07-20 16:25:42,890 INFO L268 CegarLoopResult]: For program point L876-1(lines 876 896) no Hoare annotation was computed. [2020-07-20 16:25:42,891 INFO L268 CegarLoopResult]: For program point isLowWaterSensorDryFINAL(lines 150 158) no Hoare annotation was computed. [2020-07-20 16:25:42,891 INFO L271 CegarLoopResult]: At program point isLowWaterSensorDryENTRY(lines 150 158) the Hoare annotation is: true [2020-07-20 16:25:42,891 INFO L268 CegarLoopResult]: For program point isLowWaterSensorDryEXIT(lines 150 158) no Hoare annotation was computed. [2020-07-20 16:25:42,891 INFO L268 CegarLoopResult]: For program point L112(lines 112 120) no Hoare annotation was computed. [2020-07-20 16:25:42,891 INFO L268 CegarLoopResult]: For program point L112-2(lines 112 120) no Hoare annotation was computed. [2020-07-20 16:25:42,891 INFO L268 CegarLoopResult]: For program point printEnvironmentEXIT(lines 104 126) no Hoare annotation was computed. [2020-07-20 16:25:42,891 INFO L268 CegarLoopResult]: For program point printEnvironmentENTRY(lines 104 126) no Hoare annotation was computed. [2020-07-20 16:25:42,891 INFO L268 CegarLoopResult]: For program point printEnvironmentFINAL(lines 104 126) no Hoare annotation was computed. [2020-07-20 16:25:42,891 INFO L268 CegarLoopResult]: For program point select_oneENTRY(lines 529 538) no Hoare annotation was computed. [2020-07-20 16:25:42,891 INFO L268 CegarLoopResult]: For program point select_oneFINAL(lines 529 538) no Hoare annotation was computed. [2020-07-20 16:25:42,891 INFO L268 CegarLoopResult]: For program point select_oneEXIT(lines 529 538) no Hoare annotation was computed. [2020-07-20 16:25:42,891 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtENTRY(lines 759 861) no Hoare annotation was computed. [2020-07-20 16:25:42,891 INFO L268 CegarLoopResult]: For program point L824(line 824) no Hoare annotation was computed. [2020-07-20 16:25:42,892 INFO L268 CegarLoopResult]: For program point L824-1(line 824) no Hoare annotation was computed. [2020-07-20 16:25:42,892 INFO L268 CegarLoopResult]: For program point L783(lines 783 787) no Hoare annotation was computed. [2020-07-20 16:25:42,892 INFO L268 CegarLoopResult]: For program point L847(lines 847 858) no Hoare annotation was computed. [2020-07-20 16:25:42,892 INFO L268 CegarLoopResult]: For program point L810(lines 810 814) no Hoare annotation was computed. [2020-07-20 16:25:42,892 INFO L268 CegarLoopResult]: For program point L808-2(lines 808 828) no Hoare annotation was computed. [2020-07-20 16:25:42,892 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtFINAL(lines 759 861) no Hoare annotation was computed. [2020-07-20 16:25:42,892 INFO L268 CegarLoopResult]: For program point L829(lines 807 830) no Hoare annotation was computed. [2020-07-20 16:25:42,892 INFO L268 CegarLoopResult]: For program point L788(lines 788 804) no Hoare annotation was computed. [2020-07-20 16:25:42,892 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtEXIT(lines 759 861) no Hoare annotation was computed. [2020-07-20 16:25:42,892 INFO L268 CegarLoopResult]: For program point L848(lines 848 855) no Hoare annotation was computed. [2020-07-20 16:25:42,892 INFO L268 CegarLoopResult]: For program point L809(lines 808 828) no Hoare annotation was computed. [2020-07-20 16:25:42,892 INFO L268 CegarLoopResult]: For program point L840(line 840) no Hoare annotation was computed. [2020-07-20 16:25:42,893 INFO L268 CegarLoopResult]: For program point L840-1(line 840) no Hoare annotation was computed. [2020-07-20 16:25:42,893 INFO L268 CegarLoopResult]: For program point L805(lines 805 846) no Hoare annotation was computed. [2020-07-20 16:25:42,893 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 16:25:42,893 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= |old(~waterLevel~0)| ~waterLevel~0)) [2020-07-20 16:25:42,893 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 16:25:42,893 INFO L268 CegarLoopResult]: For program point activatePumpFINAL(lines 352 359) no Hoare annotation was computed. [2020-07-20 16:25:42,893 INFO L268 CegarLoopResult]: For program point activatePumpEXIT(lines 352 359) no Hoare annotation was computed. [2020-07-20 16:25:42,893 INFO L264 CegarLoopResult]: At program point activatePumpENTRY(lines 352 359) the Hoare annotation is: (or (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0) (not (<= 2 ~waterLevel~0))) [2020-07-20 16:25:42,893 INFO L271 CegarLoopResult]: At program point getWaterLevelENTRY(lines 127 135) the Hoare annotation is: true [2020-07-20 16:25:42,893 INFO L268 CegarLoopResult]: For program point getWaterLevelFINAL(lines 127 135) no Hoare annotation was computed. [2020-07-20 16:25:42,893 INFO L268 CegarLoopResult]: For program point getWaterLevelEXIT(lines 127 135) no Hoare annotation was computed. [2020-07-20 16:25:42,894 INFO L268 CegarLoopResult]: For program point L433(lines 433 437) no Hoare annotation was computed. [2020-07-20 16:25:42,894 INFO L268 CegarLoopResult]: For program point isHighWaterLevelEXIT(lines 424 442) no Hoare annotation was computed. [2020-07-20 16:25:42,894 INFO L271 CegarLoopResult]: At program point L431(line 431) the Hoare annotation is: true [2020-07-20 16:25:42,894 INFO L268 CegarLoopResult]: For program point L433-2(lines 433 437) no Hoare annotation was computed. [2020-07-20 16:25:42,894 INFO L268 CegarLoopResult]: For program point L431-1(line 431) no Hoare annotation was computed. [2020-07-20 16:25:42,894 INFO L271 CegarLoopResult]: At program point isHighWaterLevelENTRY(lines 424 442) the Hoare annotation is: true [2020-07-20 16:25:42,894 INFO L268 CegarLoopResult]: For program point isHighWaterLevelFINAL(lines 424 442) no Hoare annotation was computed. [2020-07-20 16:25:42,894 INFO L271 CegarLoopResult]: At program point changeMethaneLevelENTRY(lines 83 94) the Hoare annotation is: true [2020-07-20 16:25:42,894 INFO L268 CegarLoopResult]: For program point L87-1(lines 83 94) no Hoare annotation was computed. [2020-07-20 16:25:42,894 INFO L268 CegarLoopResult]: For program point changeMethaneLevelEXIT(lines 83 94) no Hoare annotation was computed. [2020-07-20 16:25:42,894 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2020-07-20 16:25:42,894 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intENTRY(line -1) no Hoare annotation was computed. [2020-07-20 16:25:42,895 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intFINAL(line -1) no Hoare annotation was computed. [2020-07-20 16:25:42,895 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalENTRY(lines 95 103) no Hoare annotation was computed. [2020-07-20 16:25:42,895 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalFINAL(lines 95 103) no Hoare annotation was computed. [2020-07-20 16:25:42,895 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalEXIT(lines 95 103) no Hoare annotation was computed. [2020-07-20 16:25:42,895 INFO L264 CegarLoopResult]: At program point L282(line 282) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (<= ~waterLevel~0 |old(~waterLevel~0)|))) (and (or .cse0 (and .cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1))) (not (<= 2 |old(~waterLevel~0)|))) (or .cse0 (and .cse1 (= 0 ~pumpRunning~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|))))) [2020-07-20 16:25:42,895 INFO L264 CegarLoopResult]: At program point L280(lines 280 286) the Hoare annotation is: (let ((.cse1 (not (<= 1 ~systemActive~0))) (.cse2 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse3 (= 0 ~pumpRunning~0)) (.cse0 (= 0 |old(~pumpRunning~0)|))) (and (or .cse0 .cse1 (and .cse2 (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse3) (not (<= 2 |old(~waterLevel~0)|))) (let ((.cse4 (<= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse1 (and (<= 2 ~waterLevel~0) .cse2 .cse4) (and .cse3 (<= ~waterLevel~0 1) .cse4) (not .cse0) (not (<= 1 |old(~waterLevel~0)|)))))) [2020-07-20 16:25:42,895 INFO L264 CegarLoopResult]: At program point L275(line 275) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0)))) (and (or .cse0 (not (<= 2 |old(~waterLevel~0)|)) (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse0 (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|))))) [2020-07-20 16:25:42,895 INFO L268 CegarLoopResult]: For program point L273(lines 272 291) no Hoare annotation was computed. [2020-07-20 16:25:42,895 INFO L264 CegarLoopResult]: At program point timeShiftENTRY(lines 269 292) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse2 (<= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 (not (<= 2 |old(~waterLevel~0)|)) (and .cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse2)) (or .cse0 (and .cse1 (= 0 ~pumpRunning~0) .cse2) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|))))) [2020-07-20 16:25:42,895 INFO L268 CegarLoopResult]: For program point timeShiftEXIT(lines 269 292) no Hoare annotation was computed. [2020-07-20 16:25:42,896 INFO L268 CegarLoopResult]: For program point timeShiftFINAL(lines 269 292) no Hoare annotation was computed. [2020-07-20 16:25:42,896 INFO L268 CegarLoopResult]: For program point cleanupEXIT(lines 162 191) no Hoare annotation was computed. [2020-07-20 16:25:42,896 INFO L271 CegarLoopResult]: At program point cleanupENTRY(lines 162 191) the Hoare annotation is: true [2020-07-20 16:25:42,896 INFO L271 CegarLoopResult]: At program point L187(lines 162 191) the Hoare annotation is: true [2020-07-20 16:25:42,896 INFO L268 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-07-20 16:25:42,896 INFO L268 CegarLoopResult]: For program point L176(lines 176 180) no Hoare annotation was computed. [2020-07-20 16:25:42,896 INFO L271 CegarLoopResult]: At program point L176-1(lines 176 180) the Hoare annotation is: true [2020-07-20 16:25:42,896 INFO L268 CegarLoopResult]: For program point L173(line 173) no Hoare annotation was computed. [2020-07-20 16:25:42,896 INFO L271 CegarLoopResult]: At program point L172-2(lines 172 186) the Hoare annotation is: true [2020-07-20 16:25:42,896 INFO L271 CegarLoopResult]: At program point L168(line 168) the Hoare annotation is: true [2020-07-20 16:25:42,897 INFO L268 CegarLoopResult]: For program point L168-1(line 168) no Hoare annotation was computed. [2020-07-20 16:25:42,897 INFO L264 CegarLoopResult]: At program point lowerWaterLevelENTRY(lines 59 70) the Hoare annotation is: (or (not (<= 1 ~systemActive~0)) (= 0 ~pumpRunning~0) (not (<= 2 |old(~waterLevel~0)|)) (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (<= |old(~waterLevel~0)| ~waterLevel~0))) [2020-07-20 16:25:42,897 INFO L268 CegarLoopResult]: For program point L63-1(lines 59 70) no Hoare annotation was computed. [2020-07-20 16:25:42,897 INFO L268 CegarLoopResult]: For program point lowerWaterLevelEXIT(lines 59 70) no Hoare annotation was computed. [2020-07-20 16:25:42,897 INFO L268 CegarLoopResult]: For program point setupEXIT(lines 217 223) no Hoare annotation was computed. [2020-07-20 16:25:42,897 INFO L271 CegarLoopResult]: At program point setupFINAL(lines 217 223) the Hoare annotation is: true [2020-07-20 16:25:42,897 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 16:25:42,897 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= 1 ~waterLevel~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0)) [2020-07-20 16:25:42,897 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 16:25:42,897 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 16:25:42,898 INFO L264 CegarLoopResult]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 301 325) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0)) [2020-07-20 16:25:42,898 INFO L264 CegarLoopResult]: At program point L320(line 320) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|))) [2020-07-20 16:25:42,898 INFO L268 CegarLoopResult]: For program point L320-1(lines 301 325) no Hoare annotation was computed. [2020-07-20 16:25:42,898 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 301 325) no Hoare annotation was computed. [2020-07-20 16:25:42,898 INFO L264 CegarLoopResult]: At program point L315(line 315) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0)) (and (= 0 processEnvironment__wrappee__highWaterSensor_~tmp~1) (= 0 ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|))) [2020-07-20 16:25:42,898 INFO L264 CegarLoopResult]: At program point L311(line 311) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0)) (and (<= 2 ~waterLevel~0) (= 0 ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|))) [2020-07-20 16:25:42,898 INFO L268 CegarLoopResult]: For program point L309(lines 309 317) no Hoare annotation was computed. [2020-07-20 16:25:42,898 INFO L264 CegarLoopResult]: At program point L307(line 307) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0)) [2020-07-20 16:25:42,898 INFO L268 CegarLoopResult]: For program point L307-1(line 307) no Hoare annotation was computed. [2020-07-20 16:25:42,898 INFO L268 CegarLoopResult]: For program point L305(lines 305 322) no Hoare annotation was computed. [2020-07-20 16:25:42,898 INFO L268 CegarLoopResult]: For program point waterRiseEXIT(lines 71 82) no Hoare annotation was computed. [2020-07-20 16:25:42,898 INFO L268 CegarLoopResult]: For program point L75-1(lines 71 82) no Hoare annotation was computed. [2020-07-20 16:25:42,899 INFO L264 CegarLoopResult]: At program point waterRiseENTRY(lines 71 82) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (<= |old(~waterLevel~0)| ~waterLevel~0)))) (and (or .cse0 (not (= 0 ~pumpRunning~0)) (not (<= 1 |old(~waterLevel~0)|)) .cse1) (or .cse0 (not (<= 2 |old(~waterLevel~0)|)) .cse1))) [2020-07-20 16:25:42,899 INFO L268 CegarLoopResult]: For program point __automaton_failFINAL(lines 40 47) no Hoare annotation was computed. [2020-07-20 16:25:42,899 INFO L268 CegarLoopResult]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 44) no Hoare annotation was computed. [2020-07-20 16:25:42,899 INFO L271 CegarLoopResult]: At program point __automaton_failENTRY(lines 40 47) the Hoare annotation is: true [2020-07-20 16:25:42,899 INFO L268 CegarLoopResult]: For program point __automaton_failEXIT(lines 40 47) no Hoare annotation was computed. [2020-07-20 16:25:42,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 04:25:42 BoogieIcfgContainer [2020-07-20 16:25:42,929 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 16:25:42,931 INFO L168 Benchmark]: Toolchain (without parser) took 19750.59 ms. Allocated memory was 137.4 MB in the beginning and 446.2 MB in the end (delta: 308.8 MB). Free memory was 100.6 MB in the beginning and 282.8 MB in the end (delta: -182.2 MB). Peak memory consumption was 282.7 MB. Max. memory is 7.1 GB. [2020-07-20 16:25:42,932 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 137.4 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-20 16:25:42,933 INFO L168 Benchmark]: CACSL2BoogieTranslator took 651.94 ms. Allocated memory was 137.4 MB in the beginning and 201.9 MB in the end (delta: 64.5 MB). Free memory was 100.2 MB in the beginning and 169.8 MB in the end (delta: -69.6 MB). Peak memory consumption was 27.8 MB. Max. memory is 7.1 GB. [2020-07-20 16:25:42,934 INFO L168 Benchmark]: Boogie Preprocessor took 97.32 ms. Allocated memory is still 201.9 MB. Free memory was 169.8 MB in the beginning and 165.6 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-07-20 16:25:42,935 INFO L168 Benchmark]: RCFGBuilder took 1196.38 ms. Allocated memory was 201.9 MB in the beginning and 232.8 MB in the end (delta: 30.9 MB). Free memory was 165.6 MB in the beginning and 196.3 MB in the end (delta: -30.7 MB). Peak memory consumption was 85.8 MB. Max. memory is 7.1 GB. [2020-07-20 16:25:42,936 INFO L168 Benchmark]: TraceAbstraction took 17799.54 ms. Allocated memory was 232.8 MB in the beginning and 446.2 MB in the end (delta: 213.4 MB). Free memory was 194.8 MB in the beginning and 282.8 MB in the end (delta: -88.0 MB). Peak memory consumption was 281.5 MB. Max. memory is 7.1 GB. [2020-07-20 16:25:42,939 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 137.4 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 651.94 ms. Allocated memory was 137.4 MB in the beginning and 201.9 MB in the end (delta: 64.5 MB). Free memory was 100.2 MB in the beginning and 169.8 MB in the end (delta: -69.6 MB). Peak memory consumption was 27.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 97.32 ms. Allocated memory is still 201.9 MB. Free memory was 169.8 MB in the beginning and 165.6 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1196.38 ms. Allocated memory was 201.9 MB in the beginning and 232.8 MB in the end (delta: 30.9 MB). Free memory was 165.6 MB in the beginning and 196.3 MB in the end (delta: -30.7 MB). Peak memory consumption was 85.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 17799.54 ms. Allocated memory was 232.8 MB in the beginning and 446.2 MB in the end (delta: 213.4 MB). Free memory was 194.8 MB in the beginning and 282.8 MB in the end (delta: -88.0 MB). Peak memory consumption was 281.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 44]: 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: 162]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 473]: Loop Invariant Derived loop invariant: ((((!(\old(waterLevel) <= 1) || !(1 <= systemActive)) || (2 <= waterLevel && splverifierCounter <= 0)) || !(0 == \old(pumpRunning))) || ((1 <= waterLevel && 0 == pumpRunning) && splverifierCounter <= 0)) || !(1 <= \old(waterLevel)) - InvariantResult [Line: 472]: Loop Invariant Derived loop invariant: ((!(\old(waterLevel) <= 1) || !(0 == \old(pumpRunning))) || !(1 <= \old(waterLevel))) || !(1 <= systemActive) - InvariantResult [Line: 172]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 235 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 14.2s, OverallIterations: 11, TraceHistogramMax: 3, AutomataDifference: 5.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1741 SDtfs, 1387 SDslu, 3041 SDs, 0 SdLazy, 3235 SolverSat, 771 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1519 GetRequests, 1435 SyntacticMatches, 7 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=943occurred in iteration=10, 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, 11 MinimizatonAttempts, 459 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 58 LocationsWithAnnotation, 1506 PreInvPairs, 1555 NumberOfFragments, 914 HoareAnnotationTreeSize, 1506 FomulaSimplifications, 3853 FormulaSimplificationTreeSizeReduction, 0.9s HoareSimplificationTime, 58 FomulaSimplificationsInter, 6468 FormulaSimplificationTreeSizeReductionInter, 2.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 3.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 1172 NumberOfCodeBlocks, 855 NumberOfCodeBlocksAsserted, 33 NumberOfCheckSat, 1476 ConstructedInterpolants, 0 QuantifiedInterpolants, 341995 SizeOfPredicates, 37 NumberOfNonLiveVariables, 7629 ConjunctsInSsa, 84 ConjunctsInUnsatCore, 13 InterpolantComputations, 9 PerfectInterpolantSequences, 359/411 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...