/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 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product47.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 15:40:45,647 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 15:40:45,649 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 15:40:45,662 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 15:40:45,662 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 15:40:45,663 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 15:40:45,664 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 15:40:45,666 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 15:40:45,668 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 15:40:45,669 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 15:40:45,670 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 15:40:45,671 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 15:40:45,671 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 15:40:45,672 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 15:40:45,673 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 15:40:45,674 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 15:40:45,675 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 15:40:45,675 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 15:40:45,677 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 15:40:45,679 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 15:40:45,680 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 15:40:45,681 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 15:40:45,682 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 15:40:45,683 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 15:40:45,685 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-21 15:40:45,686 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-21 15:40:45,686 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-21 15:40:45,687 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-21 15:40:45,687 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-21 15:40:45,688 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-21 15:40:45,688 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-21 15:40:45,689 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-21 15:40:45,690 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-21 15:40:45,690 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-21 15:40:45,691 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-21 15:40:45,691 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-21 15:40:45,692 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-21 15:40:45,692 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-21 15:40:45,693 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 15:40:45,693 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 15:40:45,694 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 15:40:45,695 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 15:40:45,709 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 15:40:45,709 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 15:40:45,711 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 15:40:45,711 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 15:40:45,711 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 15:40:45,711 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 15:40:45,711 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 15:40:45,712 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 15:40:45,712 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 15:40:45,712 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 15:40:45,712 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 15:40:45,712 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 15:40:45,713 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 15:40:45,713 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 15:40:45,713 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 15:40:45,713 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 15:40:45,713 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 15:40:45,714 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 15:40:45,714 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 15:40:45,714 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 15:40:45,714 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 15:40:45,714 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 15:40:45,715 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 15:40:45,715 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 15:40:45,715 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 15:40:45,715 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 15:40:45,715 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:45,716 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 15:40:45,716 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 15:40:45,716 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 -> 2 [2020-07-21 15:40:46,001 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 15:40:46,017 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 15:40:46,021 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 15:40:46,023 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 15:40:46,025 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 15:40:46,026 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product47.cil.c [2020-07-21 15:40:46,107 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5073b3fef/014e3b447dcc4acab4feb00d1e08dc2d/FLAGddcaa3c12 [2020-07-21 15:40:46,715 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 15:40:46,715 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product47.cil.c [2020-07-21 15:40:46,730 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5073b3fef/014e3b447dcc4acab4feb00d1e08dc2d/FLAGddcaa3c12 [2020-07-21 15:40:46,951 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5073b3fef/014e3b447dcc4acab4feb00d1e08dc2d [2020-07-21 15:40:46,963 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 15:40:46,967 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 15:40:46,972 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 15:40:46,972 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 15:40:46,976 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 15:40:46,978 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 03:40:46" (1/1) ... [2020-07-21 15:40:46,981 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34c8121f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:40:46, skipping insertion in model container [2020-07-21 15:40:46,981 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 03:40:46" (1/1) ... [2020-07-21 15:40:46,990 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 15:40:47,059 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 15:40:47,443 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 15:40:47,559 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 15:40:47,670 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 15:40:47,705 INFO L208 MainTranslator]: Completed translation [2020-07-21 15:40:47,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:40:47 WrapperNode [2020-07-21 15:40:47,705 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 15:40:47,706 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 15:40:47,706 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 15:40:47,706 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 15:40:47,720 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:40:47" (1/1) ... [2020-07-21 15:40:47,721 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:40:47" (1/1) ... [2020-07-21 15:40:47,740 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:40:47" (1/1) ... [2020-07-21 15:40:47,740 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:40:47" (1/1) ... [2020-07-21 15:40:47,769 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:40:47" (1/1) ... [2020-07-21 15:40:47,781 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:40:47" (1/1) ... [2020-07-21 15:40:47,786 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:40:47" (1/1) ... [2020-07-21 15:40:47,798 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 15:40:47,798 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 15:40:47,798 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 15:40:47,799 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 15:40:47,800 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:40:47" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 15:40:47,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 15:40:47,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 15:40:47,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-21 15:40:47,893 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-21 15:40:47,894 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-21 15:40:47,894 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-21 15:40:47,894 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-21 15:40:47,895 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-21 15:40:47,895 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-21 15:40:47,895 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-21 15:40:47,896 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-21 15:40:47,896 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-21 15:40:47,896 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-21 15:40:47,896 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-21 15:40:47,896 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-07-21 15:40:47,897 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-07-21 15:40:47,897 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-21 15:40:47,897 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-21 15:40:47,898 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-21 15:40:47,898 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-21 15:40:47,898 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 15:40:47,898 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-21 15:40:47,898 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-21 15:40:47,898 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-21 15:40:47,899 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-21 15:40:47,899 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-21 15:40:47,899 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-21 15:40:47,900 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-21 15:40:47,900 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-21 15:40:47,900 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-21 15:40:47,900 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-07-21 15:40:47,900 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-21 15:40:47,901 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-07-21 15:40:47,901 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-21 15:40:47,901 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-21 15:40:47,901 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-21 15:40:47,901 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-21 15:40:47,901 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-21 15:40:47,902 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-21 15:40:47,902 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-21 15:40:47,902 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-21 15:40:47,902 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 15:40:47,903 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 15:40:47,903 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-21 15:40:47,903 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-21 15:40:47,903 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-21 15:40:47,903 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-21 15:40:47,905 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-21 15:40:47,905 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-21 15:40:47,905 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-21 15:40:47,905 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-21 15:40:47,905 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-21 15:40:47,905 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-21 15:40:47,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-21 15:40:47,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-21 15:40:47,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-21 15:40:47,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-21 15:40:47,906 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-21 15:40:47,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-21 15:40:47,907 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-21 15:40:47,907 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-21 15:40:47,907 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-21 15:40:47,907 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-21 15:40:47,908 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-21 15:40:47,908 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-21 15:40:47,908 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-21 15:40:47,908 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-21 15:40:47,908 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-21 15:40:47,908 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-07-21 15:40:47,908 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-07-21 15:40:47,909 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-21 15:40:47,909 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-21 15:40:47,909 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-21 15:40:47,910 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-21 15:40:47,910 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-21 15:40:47,910 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-21 15:40:47,910 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-21 15:40:47,911 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-21 15:40:47,911 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-21 15:40:47,912 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 15:40:47,912 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-21 15:40:47,912 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-21 15:40:47,912 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-21 15:40:47,912 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-21 15:40:47,912 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-21 15:40:47,912 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-21 15:40:47,912 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-21 15:40:47,913 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-21 15:40:47,913 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-21 15:40:47,913 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-21 15:40:47,913 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-07-21 15:40:47,913 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-21 15:40:47,913 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-07-21 15:40:47,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 15:40:47,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-21 15:40:47,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 15:40:48,937 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 15:40:48,937 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-21 15:40:48,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 03:40:48 BoogieIcfgContainer [2020-07-21 15:40:48,942 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 15:40:48,944 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 15:40:48,944 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 15:40:48,947 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 15:40:48,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 03:40:46" (1/3) ... [2020-07-21 15:40:48,948 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3831e8b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 03:40:48, skipping insertion in model container [2020-07-21 15:40:48,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:40:47" (2/3) ... [2020-07-21 15:40:48,948 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3831e8b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 03:40:48, skipping insertion in model container [2020-07-21 15:40:48,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 03:40:48" (3/3) ... [2020-07-21 15:40:48,950 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product47.cil.c [2020-07-21 15:40:48,960 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 15:40:48,968 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 15:40:48,982 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 15:40:49,006 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 15:40:49,006 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 15:40:49,007 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 15:40:49,007 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 15:40:49,007 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 15:40:49,007 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 15:40:49,007 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 15:40:49,008 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 15:40:49,031 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states. [2020-07-21 15:40:49,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-21 15:40:49,041 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:40:49,042 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 15:40:49,043 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:40:49,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:40:49,049 INFO L82 PathProgramCache]: Analyzing trace with hash 1859141612, now seen corresponding path program 1 times [2020-07-21 15:40:49,058 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:40:49,059 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1217844161] [2020-07-21 15:40:49,059 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:49,463 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:40:49,463 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:40:49,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 686 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-21 15:40:49,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:40:49,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 15:40:49,515 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:40:49,516 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1217844161] [2020-07-21 15:40:49,517 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:40:49,518 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-21 15:40:49,519 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388717945] [2020-07-21 15:40:49,524 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-21 15:40:49,524 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:40:49,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-21 15:40:49,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 15:40:49,546 INFO L87 Difference]: Start difference. First operand 184 states. Second operand 2 states. [2020-07-21 15:40:49,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:40:49,596 INFO L93 Difference]: Finished difference Result 278 states and 349 transitions. [2020-07-21 15:40:49,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-21 15:40:49,598 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2020-07-21 15:40:49,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:40:49,614 INFO L225 Difference]: With dead ends: 278 [2020-07-21 15:40:49,615 INFO L226 Difference]: Without dead ends: 141 [2020-07-21 15:40:49,621 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 15:40:49,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2020-07-21 15:40:49,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2020-07-21 15:40:49,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2020-07-21 15:40:49,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 168 transitions. [2020-07-21 15:40:49,690 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 168 transitions. Word has length 51 [2020-07-21 15:40:49,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:40:49,690 INFO L479 AbstractCegarLoop]: Abstraction has 141 states and 168 transitions. [2020-07-21 15:40:49,690 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-21 15:40:49,691 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 168 transitions. [2020-07-21 15:40:49,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-21 15:40:49,695 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:40:49,695 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 15:40:49,910 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:49,910 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:40:49,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:40:49,911 INFO L82 PathProgramCache]: Analyzing trace with hash 2121847036, now seen corresponding path program 1 times [2020-07-21 15:40:49,911 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:40:49,912 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [284825323] [2020-07-21 15:40:49,912 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:50,237 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:40:50,237 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:40:50,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 687 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-21 15:40:50,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:40:50,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 15:40:50,288 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:40:50,288 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [284825323] [2020-07-21 15:40:50,288 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:40:50,288 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 15:40:50,289 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597606460] [2020-07-21 15:40:50,291 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 15:40:50,291 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:40:50,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 15:40:50,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 15:40:50,292 INFO L87 Difference]: Start difference. First operand 141 states and 168 transitions. Second operand 3 states. [2020-07-21 15:40:50,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:40:50,317 INFO L93 Difference]: Finished difference Result 221 states and 263 transitions. [2020-07-21 15:40:50,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 15:40:50,317 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-07-21 15:40:50,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:40:50,320 INFO L225 Difference]: With dead ends: 221 [2020-07-21 15:40:50,320 INFO L226 Difference]: Without dead ends: 132 [2020-07-21 15:40:50,322 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 15:40:50,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-07-21 15:40:50,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2020-07-21 15:40:50,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-07-21 15:40:50,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 156 transitions. [2020-07-21 15:40:50,338 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 156 transitions. Word has length 52 [2020-07-21 15:40:50,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:40:50,338 INFO L479 AbstractCegarLoop]: Abstraction has 132 states and 156 transitions. [2020-07-21 15:40:50,339 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 15:40:50,339 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 156 transitions. [2020-07-21 15:40:50,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-07-21 15:40:50,341 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:40:50,341 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 15:40:50,555 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:50,556 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:40:50,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:40:50,556 INFO L82 PathProgramCache]: Analyzing trace with hash 51071948, now seen corresponding path program 1 times [2020-07-21 15:40:50,557 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:40:50,557 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [569583520] [2020-07-21 15:40:50,558 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:50,900 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:40:50,901 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:40:50,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 690 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 15:40:50,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:40:50,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 15:40:50,942 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:40:50,943 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [569583520] [2020-07-21 15:40:50,943 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:40:50,943 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 15:40:50,944 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761248802] [2020-07-21 15:40:50,944 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 15:40:50,945 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:40:50,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 15:40:50,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 15:40:50,946 INFO L87 Difference]: Start difference. First operand 132 states and 156 transitions. Second operand 3 states. [2020-07-21 15:40:50,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:40:50,988 INFO L93 Difference]: Finished difference Result 338 states and 412 transitions. [2020-07-21 15:40:50,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 15:40:50,989 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 56 [2020-07-21 15:40:50,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:40:50,993 INFO L225 Difference]: With dead ends: 338 [2020-07-21 15:40:50,993 INFO L226 Difference]: Without dead ends: 234 [2020-07-21 15:40:50,994 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 15:40:50,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2020-07-21 15:40:51,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 230. [2020-07-21 15:40:51,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-07-21 15:40:51,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 279 transitions. [2020-07-21 15:40:51,023 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 279 transitions. Word has length 56 [2020-07-21 15:40:51,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:40:51,023 INFO L479 AbstractCegarLoop]: Abstraction has 230 states and 279 transitions. [2020-07-21 15:40:51,024 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 15:40:51,024 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 279 transitions. [2020-07-21 15:40:51,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-07-21 15:40:51,027 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:40:51,027 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 15:40:51,241 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:51,242 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:40:51,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:40:51,243 INFO L82 PathProgramCache]: Analyzing trace with hash -1476511447, now seen corresponding path program 1 times [2020-07-21 15:40:51,243 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:40:51,243 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2143870678] [2020-07-21 15:40:51,244 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:51,558 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:40:51,558 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:40:51,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 711 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-21 15:40:51,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:40:51,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 15:40:51,587 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:40:51,587 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2143870678] [2020-07-21 15:40:51,587 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:40:51,587 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 15:40:51,588 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784469980] [2020-07-21 15:40:51,588 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 15:40:51,588 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:40:51,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 15:40:51,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 15:40:51,589 INFO L87 Difference]: Start difference. First operand 230 states and 279 transitions. Second operand 3 states. [2020-07-21 15:40:51,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:40:51,641 INFO L93 Difference]: Finished difference Result 432 states and 538 transitions. [2020-07-21 15:40:51,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 15:40:51,641 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 62 [2020-07-21 15:40:51,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:40:51,646 INFO L225 Difference]: With dead ends: 432 [2020-07-21 15:40:51,647 INFO L226 Difference]: Without dead ends: 429 [2020-07-21 15:40:51,647 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 15:40:51,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2020-07-21 15:40:51,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 429. [2020-07-21 15:40:51,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 429 states. [2020-07-21 15:40:51,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 534 transitions. [2020-07-21 15:40:51,695 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 534 transitions. Word has length 62 [2020-07-21 15:40:51,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:40:51,696 INFO L479 AbstractCegarLoop]: Abstraction has 429 states and 534 transitions. [2020-07-21 15:40:51,696 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 15:40:51,696 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 534 transitions. [2020-07-21 15:40:51,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-07-21 15:40:51,707 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:40:51,707 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 15:40:51,908 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:51,909 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:40:51,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:40:51,910 INFO L82 PathProgramCache]: Analyzing trace with hash 2066565558, now seen corresponding path program 1 times [2020-07-21 15:40:51,910 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:40:51,911 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [549969596] [2020-07-21 15:40:51,911 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:52,213 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:40:52,214 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:40:52,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 791 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 15:40:52,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:40:52,263 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 15:40:52,263 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:40:52,264 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [549969596] [2020-07-21 15:40:52,264 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:40:52,264 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 15:40:52,264 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721807168] [2020-07-21 15:40:52,265 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 15:40:52,265 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:40:52,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 15:40:52,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-21 15:40:52,266 INFO L87 Difference]: Start difference. First operand 429 states and 534 transitions. Second operand 6 states. [2020-07-21 15:40:52,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:40:52,525 INFO L93 Difference]: Finished difference Result 1022 states and 1326 transitions. [2020-07-21 15:40:52,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 15:40:52,525 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 92 [2020-07-21 15:40:52,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:40:52,530 INFO L225 Difference]: With dead ends: 1022 [2020-07-21 15:40:52,531 INFO L226 Difference]: Without dead ends: 621 [2020-07-21 15:40:52,534 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-21 15:40:52,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2020-07-21 15:40:52,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 595. [2020-07-21 15:40:52,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 595 states. [2020-07-21 15:40:52,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 738 transitions. [2020-07-21 15:40:52,573 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 738 transitions. Word has length 92 [2020-07-21 15:40:52,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:40:52,574 INFO L479 AbstractCegarLoop]: Abstraction has 595 states and 738 transitions. [2020-07-21 15:40:52,574 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 15:40:52,574 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 738 transitions. [2020-07-21 15:40:52,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-07-21 15:40:52,578 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:40:52,578 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 15:40:52,792 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:52,793 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:40:52,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:40:52,794 INFO L82 PathProgramCache]: Analyzing trace with hash -1266144176, now seen corresponding path program 1 times [2020-07-21 15:40:52,795 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:40:52,795 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1959956241] [2020-07-21 15:40:52,795 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:52,990 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 15:40:52,991 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:40:52,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 753 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-21 15:40:52,997 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:40:53,033 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-07-21 15:40:53,033 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:40:53,034 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1959956241] [2020-07-21 15:40:53,034 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:40:53,034 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 15:40:53,035 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825645941] [2020-07-21 15:40:53,035 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 15:40:53,036 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:40:53,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 15:40:53,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 15:40:53,036 INFO L87 Difference]: Start difference. First operand 595 states and 738 transitions. Second operand 5 states. [2020-07-21 15:40:53,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:40:53,084 INFO L93 Difference]: Finished difference Result 1190 states and 1537 transitions. [2020-07-21 15:40:53,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 15:40:53,085 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 139 [2020-07-21 15:40:53,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:40:53,090 INFO L225 Difference]: With dead ends: 1190 [2020-07-21 15:40:53,090 INFO L226 Difference]: Without dead ends: 623 [2020-07-21 15:40:53,093 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 15:40:53,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623 states. [2020-07-21 15:40:53,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623 to 611. [2020-07-21 15:40:53,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 611 states. [2020-07-21 15:40:53,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 754 transitions. [2020-07-21 15:40:53,129 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 754 transitions. Word has length 139 [2020-07-21 15:40:53,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:40:53,129 INFO L479 AbstractCegarLoop]: Abstraction has 611 states and 754 transitions. [2020-07-21 15:40:53,129 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 15:40:53,129 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 754 transitions. [2020-07-21 15:40:53,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-07-21 15:40:53,133 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:40:53,134 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 15:40:53,346 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:53,347 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:40:53,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:40:53,348 INFO L82 PathProgramCache]: Analyzing trace with hash 1886320654, now seen corresponding path program 1 times [2020-07-21 15:40:53,348 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:40:53,348 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1864187065] [2020-07-21 15:40:53,349 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:53,682 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:40:53,682 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:40:53,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 901 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-21 15:40:53,690 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:40:53,722 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-07-21 15:40:53,722 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:40:53,722 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1864187065] [2020-07-21 15:40:53,722 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:40:53,723 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 15:40:53,723 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284966701] [2020-07-21 15:40:53,724 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 15:40:53,724 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:40:53,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 15:40:53,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 15:40:53,726 INFO L87 Difference]: Start difference. First operand 611 states and 754 transitions. Second operand 3 states. [2020-07-21 15:40:53,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:40:53,802 INFO L93 Difference]: Finished difference Result 672 states and 831 transitions. [2020-07-21 15:40:53,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 15:40:53,805 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 139 [2020-07-21 15:40:53,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:40:53,807 INFO L225 Difference]: With dead ends: 672 [2020-07-21 15:40:53,807 INFO L226 Difference]: Without dead ends: 310 [2020-07-21 15:40:53,809 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 15:40:53,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2020-07-21 15:40:53,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 310. [2020-07-21 15:40:53,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 310 states. [2020-07-21 15:40:53,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 369 transitions. [2020-07-21 15:40:53,825 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 369 transitions. Word has length 139 [2020-07-21 15:40:53,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:40:53,827 INFO L479 AbstractCegarLoop]: Abstraction has 310 states and 369 transitions. [2020-07-21 15:40:53,827 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 15:40:53,827 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 369 transitions. [2020-07-21 15:40:53,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-07-21 15:40:53,832 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:40:53,832 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 15:40:54,041 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:54,042 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:40:54,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:40:54,043 INFO L82 PathProgramCache]: Analyzing trace with hash 1773514262, now seen corresponding path program 1 times [2020-07-21 15:40:54,043 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:40:54,044 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2009748885] [2020-07-21 15:40:54,044 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:54,230 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 15:40:54,230 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:40:54,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 784 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-21 15:40:54,237 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:40:54,299 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-07-21 15:40:54,300 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:40:54,300 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2009748885] [2020-07-21 15:40:54,300 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:40:54,300 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 15:40:54,301 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938564389] [2020-07-21 15:40:54,301 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 15:40:54,301 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:40:54,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 15:40:54,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-21 15:40:54,302 INFO L87 Difference]: Start difference. First operand 310 states and 369 transitions. Second operand 6 states. [2020-07-21 15:40:55,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:40:55,177 INFO L93 Difference]: Finished difference Result 1050 states and 1429 transitions. [2020-07-21 15:40:55,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 15:40:55,179 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 157 [2020-07-21 15:40:55,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:40:55,188 INFO L225 Difference]: With dead ends: 1050 [2020-07-21 15:40:55,188 INFO L226 Difference]: Without dead ends: 768 [2020-07-21 15:40:55,190 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-21 15:40:55,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 768 states. [2020-07-21 15:40:55,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 768 to 720. [2020-07-21 15:40:55,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 720 states. [2020-07-21 15:40:55,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 929 transitions. [2020-07-21 15:40:55,237 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 929 transitions. Word has length 157 [2020-07-21 15:40:55,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:40:55,238 INFO L479 AbstractCegarLoop]: Abstraction has 720 states and 929 transitions. [2020-07-21 15:40:55,238 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 15:40:55,238 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 929 transitions. [2020-07-21 15:40:55,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-07-21 15:40:55,243 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:40:55,243 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 15:40:55,456 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:55,457 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:40:55,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:40:55,457 INFO L82 PathProgramCache]: Analyzing trace with hash 631632443, now seen corresponding path program 1 times [2020-07-21 15:40:55,457 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:40:55,458 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1048930882] [2020-07-21 15:40:55,458 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:55,661 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 15:40:55,661 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:40:55,664 INFO L263 TraceCheckSpWp]: Trace formula consists of 792 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-21 15:40:55,668 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:40:55,752 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-07-21 15:40:55,752 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:40:55,753 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1048930882] [2020-07-21 15:40:55,753 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:40:55,753 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-21 15:40:55,754 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926117539] [2020-07-21 15:40:55,754 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 15:40:55,754 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:40:55,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 15:40:55,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-07-21 15:40:55,755 INFO L87 Difference]: Start difference. First operand 720 states and 929 transitions. Second operand 8 states. [2020-07-21 15:40:57,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:40:57,169 INFO L93 Difference]: Finished difference Result 2034 states and 2866 transitions. [2020-07-21 15:40:57,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-21 15:40:57,173 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 165 [2020-07-21 15:40:57,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:40:57,185 INFO L225 Difference]: With dead ends: 2034 [2020-07-21 15:40:57,185 INFO L226 Difference]: Without dead ends: 1342 [2020-07-21 15:40:57,192 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-07-21 15:40:57,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1342 states. [2020-07-21 15:40:57,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1342 to 1176. [2020-07-21 15:40:57,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1176 states. [2020-07-21 15:40:57,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1176 states to 1176 states and 1581 transitions. [2020-07-21 15:40:57,305 INFO L78 Accepts]: Start accepts. Automaton has 1176 states and 1581 transitions. Word has length 165 [2020-07-21 15:40:57,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:40:57,305 INFO L479 AbstractCegarLoop]: Abstraction has 1176 states and 1581 transitions. [2020-07-21 15:40:57,305 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 15:40:57,305 INFO L276 IsEmpty]: Start isEmpty. Operand 1176 states and 1581 transitions. [2020-07-21 15:40:57,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-07-21 15:40:57,314 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:40:57,315 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 15:40:57,528 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:57,529 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:40:57,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:40:57,529 INFO L82 PathProgramCache]: Analyzing trace with hash 1370802937, now seen corresponding path program 1 times [2020-07-21 15:40:57,529 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:40:57,530 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [186315945] [2020-07-21 15:40:57,530 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:57,815 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:40:57,815 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:40:57,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 930 conjuncts, 25 conjunts are in the unsatisfiable core [2020-07-21 15:40:57,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:40:57,919 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 34 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-21 15:40:57,919 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 15:40:58,671 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 24 proven. 13 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-07-21 15:40:58,671 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [186315945] [2020-07-21 15:40:58,671 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 15:40:58,672 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 17 [2020-07-21 15:40:58,672 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814534358] [2020-07-21 15:40:58,673 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-07-21 15:40:58,673 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:40:58,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-07-21 15:40:58,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2020-07-21 15:40:58,674 INFO L87 Difference]: Start difference. First operand 1176 states and 1581 transitions. Second operand 17 states. [2020-07-21 15:40:59,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:40:59,615 INFO L93 Difference]: Finished difference Result 3075 states and 4480 transitions. [2020-07-21 15:40:59,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-07-21 15:40:59,616 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 157 [2020-07-21 15:40:59,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:40:59,632 INFO L225 Difference]: With dead ends: 3075 [2020-07-21 15:40:59,632 INFO L226 Difference]: Without dead ends: 1927 [2020-07-21 15:40:59,641 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 299 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=109, Invalid=443, Unknown=0, NotChecked=0, Total=552 [2020-07-21 15:40:59,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1927 states. [2020-07-21 15:40:59,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1927 to 1887. [2020-07-21 15:40:59,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1887 states. [2020-07-21 15:40:59,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1887 states to 1887 states and 2535 transitions. [2020-07-21 15:40:59,810 INFO L78 Accepts]: Start accepts. Automaton has 1887 states and 2535 transitions. Word has length 157 [2020-07-21 15:40:59,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:40:59,810 INFO L479 AbstractCegarLoop]: Abstraction has 1887 states and 2535 transitions. [2020-07-21 15:40:59,811 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-07-21 15:40:59,811 INFO L276 IsEmpty]: Start isEmpty. Operand 1887 states and 2535 transitions. [2020-07-21 15:40:59,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-07-21 15:40:59,827 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:40:59,828 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 15:41:00,043 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:41:00,044 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:41:00,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:41:00,044 INFO L82 PathProgramCache]: Analyzing trace with hash -1579953643, now seen corresponding path program 1 times [2020-07-21 15:41:00,045 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:41:00,045 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [162778540] [2020-07-21 15:41:00,045 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:41:00,250 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 15:41:00,250 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:41:00,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 859 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 15:41:00,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:41:00,334 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2020-07-21 15:41:00,334 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:41:00,334 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [162778540] [2020-07-21 15:41:00,334 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:41:00,335 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 15:41:00,335 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103092016] [2020-07-21 15:41:00,335 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 15:41:00,336 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:41:00,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 15:41:00,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-21 15:41:00,336 INFO L87 Difference]: Start difference. First operand 1887 states and 2535 transitions. Second operand 6 states. [2020-07-21 15:41:00,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:41:00,431 INFO L93 Difference]: Finished difference Result 3798 states and 5269 transitions. [2020-07-21 15:41:00,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 15:41:00,432 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 212 [2020-07-21 15:41:00,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:41:00,446 INFO L225 Difference]: With dead ends: 3798 [2020-07-21 15:41:00,447 INFO L226 Difference]: Without dead ends: 1939 [2020-07-21 15:41:00,455 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-21 15:41:00,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1939 states. [2020-07-21 15:41:00,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1939 to 1927. [2020-07-21 15:41:00,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1927 states. [2020-07-21 15:41:00,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1927 states to 1927 states and 2581 transitions. [2020-07-21 15:41:00,573 INFO L78 Accepts]: Start accepts. Automaton has 1927 states and 2581 transitions. Word has length 212 [2020-07-21 15:41:00,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:41:00,574 INFO L479 AbstractCegarLoop]: Abstraction has 1927 states and 2581 transitions. [2020-07-21 15:41:00,574 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 15:41:00,574 INFO L276 IsEmpty]: Start isEmpty. Operand 1927 states and 2581 transitions. [2020-07-21 15:41:00,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2020-07-21 15:41:00,592 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:41:00,592 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 15:41:00,805 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:41:00,806 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:41:00,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:41:00,807 INFO L82 PathProgramCache]: Analyzing trace with hash -1892406253, now seen corresponding path program 1 times [2020-07-21 15:41:00,807 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:41:00,807 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [181850330] [2020-07-21 15:41:00,808 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:41:01,050 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 15:41:01,050 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:41:01,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 863 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-21 15:41:01,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:41:01,105 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2020-07-21 15:41:01,105 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:41:01,106 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [181850330] [2020-07-21 15:41:01,106 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:41:01,106 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 15:41:01,106 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433271879] [2020-07-21 15:41:01,107 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 15:41:01,107 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:41:01,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 15:41:01,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 15:41:01,108 INFO L87 Difference]: Start difference. First operand 1927 states and 2581 transitions. Second operand 5 states. [2020-07-21 15:41:01,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:41:01,242 INFO L93 Difference]: Finished difference Result 3625 states and 5007 transitions. [2020-07-21 15:41:01,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 15:41:01,243 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 216 [2020-07-21 15:41:01,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:41:01,255 INFO L225 Difference]: With dead ends: 3625 [2020-07-21 15:41:01,255 INFO L226 Difference]: Without dead ends: 1726 [2020-07-21 15:41:01,262 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 15:41:01,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1726 states. [2020-07-21 15:41:01,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1726 to 1698. [2020-07-21 15:41:01,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1698 states. [2020-07-21 15:41:01,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1698 states to 1698 states and 2212 transitions. [2020-07-21 15:41:01,358 INFO L78 Accepts]: Start accepts. Automaton has 1698 states and 2212 transitions. Word has length 216 [2020-07-21 15:41:01,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:41:01,359 INFO L479 AbstractCegarLoop]: Abstraction has 1698 states and 2212 transitions. [2020-07-21 15:41:01,359 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 15:41:01,359 INFO L276 IsEmpty]: Start isEmpty. Operand 1698 states and 2212 transitions. [2020-07-21 15:41:01,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2020-07-21 15:41:01,366 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:41:01,367 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 15:41:01,580 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:41:01,581 INFO L427 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:41:01,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:41:01,581 INFO L82 PathProgramCache]: Analyzing trace with hash 1963612626, now seen corresponding path program 1 times [2020-07-21 15:41:01,582 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:41:01,582 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1262641304] [2020-07-21 15:41:01,582 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:41:01,924 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:41:01,924 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:41:01,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 1074 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-21 15:41:01,933 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:41:02,022 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-07-21 15:41:02,023 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:41:02,023 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1262641304] [2020-07-21 15:41:02,024 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:41:02,024 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-21 15:41:02,024 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432167402] [2020-07-21 15:41:02,026 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 15:41:02,026 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:41:02,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 15:41:02,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-21 15:41:02,027 INFO L87 Difference]: Start difference. First operand 1698 states and 2212 transitions. Second operand 8 states. [2020-07-21 15:41:02,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:41:02,509 INFO L93 Difference]: Finished difference Result 2861 states and 3710 transitions. [2020-07-21 15:41:02,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 15:41:02,510 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 216 [2020-07-21 15:41:02,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:41:02,511 INFO L225 Difference]: With dead ends: 2861 [2020-07-21 15:41:02,511 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 15:41:02,519 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 208 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-21 15:41:02,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 15:41:02,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 15:41:02,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 15:41:02,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 15:41:02,521 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 216 [2020-07-21 15:41:02,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:41:02,521 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 15:41:02,521 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 15:41:02,521 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 15:41:02,522 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 15:41:02,735 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:41:02,738 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 15:41:04,998 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 21 [2020-07-21 15:41:05,260 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 35 [2020-07-21 15:41:05,380 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 35 [2020-07-21 15:41:05,574 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 29 [2020-07-21 15:41:06,286 WARN L193 SmtUtils]: Spent 705.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 46 [2020-07-21 15:41:06,621 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 18 [2020-07-21 15:41:07,123 WARN L193 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 34 [2020-07-21 15:41:07,279 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 35 [2020-07-21 15:41:07,431 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 22 [2020-07-21 15:41:07,679 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 24 [2020-07-21 15:41:07,933 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 24 [2020-07-21 15:41:08,206 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 21 [2020-07-21 15:41:08,438 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 31 [2020-07-21 15:41:08,564 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 35 [2020-07-21 15:41:08,722 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 21 [2020-07-21 15:41:08,914 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 25 [2020-07-21 15:41:09,066 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 22 [2020-07-21 15:41:09,572 WARN L193 SmtUtils]: Spent 454.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 40 [2020-07-21 15:41:09,733 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 21 [2020-07-21 15:41:09,912 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 28 [2020-07-21 15:41:10,758 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 28 [2020-07-21 15:41:10,762 INFO L268 CegarLoopResult]: For program point L186(lines 163 187) no Hoare annotation was computed. [2020-07-21 15:41:10,762 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeFINAL(lines 139 194) no Hoare annotation was computed. [2020-07-21 15:41:10,763 INFO L268 CegarLoopResult]: For program point L170(lines 170 174) no Hoare annotation was computed. [2020-07-21 15:41:10,763 INFO L268 CegarLoopResult]: For program point L170-1(lines 170 174) no Hoare annotation was computed. [2020-07-21 15:41:10,763 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeEXIT(lines 139 194) no Hoare annotation was computed. [2020-07-21 15:41:10,763 INFO L268 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-07-21 15:41:10,763 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeENTRY(lines 139 194) no Hoare annotation was computed. [2020-07-21 15:41:10,763 INFO L268 CegarLoopResult]: For program point L164-2(lines 164 185) no Hoare annotation was computed. [2020-07-21 15:41:10,763 INFO L268 CegarLoopResult]: For program point L222(line 222) no Hoare annotation was computed. [2020-07-21 15:41:10,763 INFO L268 CegarLoopResult]: For program point L221-2(lines 221 246) no Hoare annotation was computed. [2020-07-21 15:41:10,764 INFO L268 CegarLoopResult]: For program point L247(lines 220 248) no Hoare annotation was computed. [2020-07-21 15:41:10,764 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetFINAL(lines 195 254) no Hoare annotation was computed. [2020-07-21 15:41:10,764 INFO L268 CegarLoopResult]: For program point L240(line 240) no Hoare annotation was computed. [2020-07-21 15:41:10,764 INFO L268 CegarLoopResult]: For program point L240-1(line 240) no Hoare annotation was computed. [2020-07-21 15:41:10,764 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetENTRY(lines 195 254) no Hoare annotation was computed. [2020-07-21 15:41:10,764 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetEXIT(lines 195 254) no Hoare annotation was computed. [2020-07-21 15:41:10,764 INFO L268 CegarLoopResult]: For program point L227(lines 227 231) no Hoare annotation was computed. [2020-07-21 15:41:10,764 INFO L268 CegarLoopResult]: For program point L227-1(lines 227 231) no Hoare annotation was computed. [2020-07-21 15:41:10,765 INFO L271 CegarLoopResult]: At program point select_helpersFINAL(lines 70 76) the Hoare annotation is: true [2020-07-21 15:41:10,765 INFO L268 CegarLoopResult]: For program point select_helpersEXIT(lines 70 76) no Hoare annotation was computed. [2020-07-21 15:41:10,765 INFO L268 CegarLoopResult]: For program point valid_productEXIT(lines 77 85) no Hoare annotation was computed. [2020-07-21 15:41:10,765 INFO L271 CegarLoopResult]: At program point valid_productENTRY(lines 77 85) the Hoare annotation is: true [2020-07-21 15:41:10,765 INFO L268 CegarLoopResult]: For program point valid_productFINAL(lines 77 85) no Hoare annotation was computed. [2020-07-21 15:41:10,765 INFO L264 CegarLoopResult]: At program point L578-1(line 578) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 15:41:10,766 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 572 594) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 15:41:10,766 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 572 594) no Hoare annotation was computed. [2020-07-21 15:41:10,766 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 572 594) no Hoare annotation was computed. [2020-07-21 15:41:10,766 INFO L264 CegarLoopResult]: At program point L584(line 584) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 15:41:10,766 INFO L264 CegarLoopResult]: At program point L584-1(line 584) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 15:41:10,766 INFO L268 CegarLoopResult]: For program point L582(lines 582 589) no Hoare annotation was computed. [2020-07-21 15:41:10,767 INFO L268 CegarLoopResult]: For program point L582-1(lines 582 589) no Hoare annotation was computed. [2020-07-21 15:41:10,767 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-21 15:41:10,767 INFO L264 CegarLoopResult]: At program point L579(line 579) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 15:41:10,767 INFO L264 CegarLoopResult]: At program point L578(line 578) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 15:41:10,767 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-07-21 15:41:10,767 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-21 15:41:10,768 INFO L268 CegarLoopResult]: For program point Specification2EXIT(lines 529 552) no Hoare annotation was computed. [2020-07-21 15:41:10,768 INFO L268 CegarLoopResult]: For program point L543(line 543) no Hoare annotation was computed. [2020-07-21 15:41:10,768 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-07-21 15:41:10,768 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-21 15:41:10,768 INFO L268 CegarLoopResult]: For program point Specification2ENTRY(lines 529 552) no Hoare annotation was computed. [2020-07-21 15:41:10,768 INFO L268 CegarLoopResult]: For program point L540(line 540) no Hoare annotation was computed. [2020-07-21 15:41:10,768 INFO L268 CegarLoopResult]: For program point Specification2FINAL(lines 529 552) no Hoare annotation was computed. [2020-07-21 15:41:10,768 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-07-21 15:41:10,768 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-21 15:41:10,769 INFO L268 CegarLoopResult]: For program point L537(line 537) no Hoare annotation was computed. [2020-07-21 15:41:10,769 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-07-21 15:41:10,769 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-21 15:41:10,769 INFO L268 CegarLoopResult]: For program point L534(line 534) no Hoare annotation was computed. [2020-07-21 15:41:10,769 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-21 15:41:10,769 INFO L268 CegarLoopResult]: For program point L546(line 546) no Hoare annotation was computed. [2020-07-21 15:41:10,769 INFO L268 CegarLoopResult]: For program point L738-1(line 738) no Hoare annotation was computed. [2020-07-21 15:41:10,769 INFO L268 CegarLoopResult]: For program point L736(lines 736 753) no Hoare annotation was computed. [2020-07-21 15:41:10,770 INFO L264 CegarLoopResult]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 732 756) the Hoare annotation is: (let ((.cse0 (not (= 0 ~methAndRunningLastTime~0))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (= 0 ~pumpRunning~0))) (and (or .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0)) .cse2 .cse3) (or .cse0 .cse1 .cse2 (not (= 0 ~methaneLevelCritical~0)) .cse3))) [2020-07-21 15:41:10,770 INFO L264 CegarLoopResult]: At program point L751(line 751) the Hoare annotation is: (let ((.cse0 (not (= 0 ~methAndRunningLastTime~0))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse2 (not (= 0 |old(~pumpRunning~0)|)))) (and (or .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0)) .cse2) (or .cse0 .cse1 .cse2 (not (= 0 ~methaneLevelCritical~0))))) [2020-07-21 15:41:10,770 INFO L268 CegarLoopResult]: For program point L751-1(lines 732 756) no Hoare annotation was computed. [2020-07-21 15:41:10,770 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 732 756) no Hoare annotation was computed. [2020-07-21 15:41:10,770 INFO L264 CegarLoopResult]: At program point L746(line 746) the Hoare annotation is: (let ((.cse0 (not (= 0 ~methAndRunningLastTime~0))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse2 (and (= 0 ~pumpRunning~0) (= 0 processEnvironment__wrappee__methaneQuery_~tmp~5)))) (and (or .cse0 .cse1 (not (= 0 ~methaneLevelCritical~0)) .cse2) (or .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0)) (not (= 0 |old(~pumpRunning~0)|)) .cse2))) [2020-07-21 15:41:10,770 INFO L264 CegarLoopResult]: At program point L742(line 742) the Hoare annotation is: (let ((.cse0 (not (= 0 ~methAndRunningLastTime~0))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse2 (and (<= 2 ~waterLevel~0) (= 0 ~pumpRunning~0)))) (and (or .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0)) .cse2 (not (= 0 |old(~pumpRunning~0)|))) (or .cse0 .cse1 .cse2 (not (= 0 ~methaneLevelCritical~0))))) [2020-07-21 15:41:10,771 INFO L268 CegarLoopResult]: For program point L740(lines 740 748) no Hoare annotation was computed. [2020-07-21 15:41:10,771 INFO L264 CegarLoopResult]: At program point L738(line 738) the Hoare annotation is: (let ((.cse0 (not (= 0 ~methAndRunningLastTime~0))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse2 (= 0 ~pumpRunning~0))) (and (or .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0)) (not (= 0 |old(~pumpRunning~0)|)) .cse2) (or .cse0 .cse1 (not (= 0 ~methaneLevelCritical~0)) .cse2))) [2020-07-21 15:41:10,771 INFO L264 CegarLoopResult]: At program point L897(line 897) the Hoare annotation is: (and (or (not (= 0 ~methAndRunningLastTime~0)) (not (= 0 |old(~pumpRunning~0)|))) (or (not (<= 1 |old(~systemActive~0)|)) (<= 1 ~systemActive~0))) [2020-07-21 15:41:10,771 INFO L268 CegarLoopResult]: For program point stopSystemEXIT(lines 891 905) no Hoare annotation was computed. [2020-07-21 15:41:10,771 INFO L268 CegarLoopResult]: For program point L895(lines 895 901) no Hoare annotation was computed. [2020-07-21 15:41:10,771 INFO L264 CegarLoopResult]: At program point stopSystemENTRY(lines 891 905) the Hoare annotation is: (let ((.cse0 (not (= 0 ~methAndRunningLastTime~0))) (.cse1 (not (= 0 |old(~pumpRunning~0)|)))) (and (or .cse0 (= 0 ~systemActive~0) .cse1 (not (= 0 |old(~systemActive~0)|))) (or .cse0 .cse1 (= 0 ~pumpRunning~0)) (or (not (<= 1 |old(~systemActive~0)|)) (<= 1 ~systemActive~0)))) [2020-07-21 15:41:10,771 INFO L268 CegarLoopResult]: For program point stopSystemFINAL(lines 891 905) no Hoare annotation was computed. [2020-07-21 15:41:10,771 INFO L268 CegarLoopResult]: For program point isPumpRunningEXIT(lines 827 835) no Hoare annotation was computed. [2020-07-21 15:41:10,772 INFO L271 CegarLoopResult]: At program point isPumpRunningENTRY(lines 827 835) the Hoare annotation is: true [2020-07-21 15:41:10,772 INFO L268 CegarLoopResult]: For program point isPumpRunningFINAL(lines 827 835) no Hoare annotation was computed. [2020-07-21 15:41:10,772 INFO L268 CegarLoopResult]: For program point L866-1(line 866) no Hoare annotation was computed. [2020-07-21 15:41:10,772 INFO L268 CegarLoopResult]: For program point L855(lines 855 863) no Hoare annotation was computed. [2020-07-21 15:41:10,772 INFO L268 CegarLoopResult]: For program point L855-2(lines 855 863) no Hoare annotation was computed. [2020-07-21 15:41:10,772 INFO L268 CegarLoopResult]: For program point printPumpFINAL(lines 836 871) no Hoare annotation was computed. [2020-07-21 15:41:10,772 INFO L268 CegarLoopResult]: For program point L843(lines 843 851) no Hoare annotation was computed. [2020-07-21 15:41:10,772 INFO L268 CegarLoopResult]: For program point L843-2(lines 843 851) no Hoare annotation was computed. [2020-07-21 15:41:10,772 INFO L268 CegarLoopResult]: For program point printPumpENTRY(lines 836 871) no Hoare annotation was computed. [2020-07-21 15:41:10,773 INFO L268 CegarLoopResult]: For program point printPumpEXIT(lines 836 871) no Hoare annotation was computed. [2020-07-21 15:41:10,773 INFO L268 CegarLoopResult]: For program point L866(line 866) no Hoare annotation was computed. [2020-07-21 15:41:10,773 INFO L268 CegarLoopResult]: For program point select_featuresEXIT(lines 63 69) no Hoare annotation was computed. [2020-07-21 15:41:10,773 INFO L271 CegarLoopResult]: At program point select_featuresFINAL(lines 63 69) the Hoare annotation is: true [2020-07-21 15:41:10,773 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setENTRY(lines 93 138) no Hoare annotation was computed. [2020-07-21 15:41:10,773 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setEXIT(lines 93 138) no Hoare annotation was computed. [2020-07-21 15:41:10,773 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setFINAL(lines 93 138) no Hoare annotation was computed. [2020-07-21 15:41:10,773 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeFINAL(lines 406 451) no Hoare annotation was computed. [2020-07-21 15:41:10,773 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeENTRY(lines 406 451) no Hoare annotation was computed. [2020-07-21 15:41:10,774 INFO L268 CegarLoopResult]: For program point L426(lines 426 433) no Hoare annotation was computed. [2020-07-21 15:41:10,774 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeEXIT(lines 406 451) no Hoare annotation was computed. [2020-07-21 15:41:10,774 INFO L268 CegarLoopResult]: For program point L420(lines 420 440) no Hoare annotation was computed. [2020-07-21 15:41:10,774 INFO L268 CegarLoopResult]: For program point L420-1(lines 420 440) no Hoare annotation was computed. [2020-07-21 15:41:10,774 INFO L264 CegarLoopResult]: At program point runTestENTRY(lines 561 571) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 15:41:10,774 INFO L268 CegarLoopResult]: For program point runTestEXIT(lines 561 571) no Hoare annotation was computed. [2020-07-21 15:41:10,774 INFO L268 CegarLoopResult]: For program point runTestFINAL(lines 561 571) no Hoare annotation was computed. [2020-07-21 15:41:10,775 INFO L264 CegarLoopResult]: At program point L566(line 566) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 15:41:10,775 INFO L271 CegarLoopResult]: At program point isMethaneAlarmENTRY(lines 816 826) the Hoare annotation is: true [2020-07-21 15:41:10,775 INFO L268 CegarLoopResult]: For program point isMethaneAlarmEXIT(lines 816 826) no Hoare annotation was computed. [2020-07-21 15:41:10,775 INFO L268 CegarLoopResult]: For program point isMethaneAlarmFINAL(lines 816 826) no Hoare annotation was computed. [2020-07-21 15:41:10,775 INFO L271 CegarLoopResult]: At program point L821(line 821) the Hoare annotation is: true [2020-07-21 15:41:10,775 INFO L268 CegarLoopResult]: For program point L821-1(line 821) no Hoare annotation was computed. [2020-07-21 15:41:10,775 INFO L271 CegarLoopResult]: At program point deactivatePumpENTRY(lines 808 815) the Hoare annotation is: true [2020-07-21 15:41:10,775 INFO L268 CegarLoopResult]: For program point deactivatePumpEXIT(lines 808 815) no Hoare annotation was computed. [2020-07-21 15:41:10,775 INFO L268 CegarLoopResult]: For program point deactivatePumpFINAL(lines 808 815) no Hoare annotation was computed. [2020-07-21 15:41:10,776 INFO L268 CegarLoopResult]: For program point L683(lines 683 689) no Hoare annotation was computed. [2020-07-21 15:41:10,776 INFO L268 CegarLoopResult]: For program point isHighWaterSensorDryEXIT(lines 679 692) no Hoare annotation was computed. [2020-07-21 15:41:10,776 INFO L271 CegarLoopResult]: At program point isHighWaterSensorDryENTRY(lines 679 692) the Hoare annotation is: true [2020-07-21 15:41:10,776 INFO L268 CegarLoopResult]: For program point isHighWaterSensorDryFINAL(lines 679 692) no Hoare annotation was computed. [2020-07-21 15:41:10,776 INFO L264 CegarLoopResult]: At program point L768(line 768) the Hoare annotation is: (let ((.cse3 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (not (= 0 ~methAndRunningLastTime~0))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse2 (not (<= 1 ~methaneLevelCritical~0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse3 (not (= 0 ~methaneLevelCritical~0))) (or (<= ~methaneLevelCritical~0 processEnvironment_~tmp~6) .cse0 .cse1 .cse2))) [2020-07-21 15:41:10,776 INFO L268 CegarLoopResult]: For program point L766(lines 766 774) no Hoare annotation was computed. [2020-07-21 15:41:10,776 INFO L264 CegarLoopResult]: At program point L764(line 764) the Hoare annotation is: (let ((.cse0 (not (= 0 ~methAndRunningLastTime~0))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse2 (not (= 0 |old(~pumpRunning~0)|)))) (and (or .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0)) .cse2) (or .cse0 .cse1 .cse2 (not (= 0 ~methaneLevelCritical~0))))) [2020-07-21 15:41:10,776 INFO L268 CegarLoopResult]: For program point L764-1(line 764) no Hoare annotation was computed. [2020-07-21 15:41:10,777 INFO L268 CegarLoopResult]: For program point L762(lines 762 779) no Hoare annotation was computed. [2020-07-21 15:41:10,777 INFO L268 CegarLoopResult]: For program point processEnvironmentEXIT(lines 758 782) no Hoare annotation was computed. [2020-07-21 15:41:10,777 INFO L264 CegarLoopResult]: At program point processEnvironmentENTRY(lines 758 782) the Hoare annotation is: (let ((.cse0 (not (= 0 ~methAndRunningLastTime~0))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (= 0 ~pumpRunning~0))) (and (or .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0)) .cse2 .cse3) (or .cse0 .cse1 .cse2 (not (= 0 ~methaneLevelCritical~0)) .cse3))) [2020-07-21 15:41:10,777 INFO L264 CegarLoopResult]: At program point L777(line 777) the Hoare annotation is: (let ((.cse0 (not (= 0 ~methAndRunningLastTime~0))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse2 (= 0 ~pumpRunning~0))) (and (or .cse0 .cse1 (not (= 0 ~methaneLevelCritical~0)) .cse2) (or .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0)) .cse2))) [2020-07-21 15:41:10,777 INFO L268 CegarLoopResult]: For program point L777-1(lines 758 782) no Hoare annotation was computed. [2020-07-21 15:41:10,777 INFO L264 CegarLoopResult]: At program point L772(line 772) the Hoare annotation is: (let ((.cse0 (not (= 0 ~methAndRunningLastTime~0))) (.cse1 (not (<= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (= 0 |old(~pumpRunning~0)|)) (not (= 0 ~methaneLevelCritical~0))) (or .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0))))) [2020-07-21 15:41:10,777 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__baseEXIT(lines 724 730) no Hoare annotation was computed. [2020-07-21 15:41:10,778 INFO L271 CegarLoopResult]: At program point processEnvironment__wrappee__baseFINAL(lines 724 730) the Hoare annotation is: true [2020-07-21 15:41:10,778 INFO L264 CegarLoopResult]: At program point L929(line 929) the Hoare annotation is: (let ((.cse1 (= 0 ~pumpRunning~0)) (.cse0 (= 0 ~methAndRunningLastTime~0)) (.cse2 (<= test_~splverifierCounter~0 0)) (.cse3 (<= 1 ~systemActive~0))) (or (not (<= |old(~waterLevel~0)| 1)) (and .cse0 (= 0 ~systemActive~0) .cse1 .cse2) (and .cse0 (<= 1 ~methaneLevelCritical~0) .cse1 .cse2 .cse3) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) .cse0 .cse2 .cse3) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|)))) [2020-07-21 15:41:10,778 INFO L264 CegarLoopResult]: At program point testENTRY(lines 907 972) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 15:41:10,778 INFO L268 CegarLoopResult]: For program point L927(lines 927 933) no Hoare annotation was computed. [2020-07-21 15:41:10,778 INFO L268 CegarLoopResult]: For program point L927-1(lines 927 933) no Hoare annotation was computed. [2020-07-21 15:41:10,778 INFO L268 CegarLoopResult]: For program point L919(lines 919 923) no Hoare annotation was computed. [2020-07-21 15:41:10,778 INFO L268 CegarLoopResult]: For program point testFINAL(lines 907 972) no Hoare annotation was computed. [2020-07-21 15:41:10,778 INFO L264 CegarLoopResult]: At program point L965(lines 916 966) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 15:41:10,779 INFO L264 CegarLoopResult]: At program point L955(line 955) the Hoare annotation is: (let ((.cse0 (<= test_~splverifierCounter~0 0))) (or (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~methAndRunningLastTime~0) (= 0 ~pumpRunning~0) .cse0) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|)) (and .cse0 (<= 1 ~systemActive~0)))) [2020-07-21 15:41:10,779 INFO L268 CegarLoopResult]: For program point L953(lines 953 959) no Hoare annotation was computed. [2020-07-21 15:41:10,779 INFO L264 CegarLoopResult]: At program point L953-1(lines 947 960) the Hoare annotation is: (let ((.cse0 (= 0 ~methAndRunningLastTime~0)) (.cse2 (<= 1 ~systemActive~0)) (.cse1 (<= test_~splverifierCounter~0 0))) (or (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) .cse0 .cse1 .cse2) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|)) (and .cse0 (<= 1 ~methaneLevelCritical~0) .cse1 .cse2) (and (= 0 ~systemActive~0) (= 0 ~pumpRunning~0) .cse1))) [2020-07-21 15:41:10,779 INFO L268 CegarLoopResult]: For program point L918(lines 917 964) no Hoare annotation was computed. [2020-07-21 15:41:10,779 INFO L268 CegarLoopResult]: For program point L947(lines 947 960) no Hoare annotation was computed. [2020-07-21 15:41:10,779 INFO L264 CegarLoopResult]: At program point L939(line 939) the Hoare annotation is: (let ((.cse1 (= 0 ~pumpRunning~0)) (.cse0 (= 0 ~methAndRunningLastTime~0)) (.cse2 (<= test_~splverifierCounter~0 0)) (.cse3 (<= 1 ~systemActive~0))) (or (not (<= |old(~waterLevel~0)| 1)) (and .cse0 (= 0 ~systemActive~0) .cse1 .cse2) (and .cse0 (<= 1 ~methaneLevelCritical~0) .cse1 .cse2 .cse3) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) .cse0 .cse2 .cse3) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|)))) [2020-07-21 15:41:10,779 INFO L268 CegarLoopResult]: For program point L937(lines 937 943) no Hoare annotation was computed. [2020-07-21 15:41:10,779 INFO L268 CegarLoopResult]: For program point L937-1(lines 937 943) no Hoare annotation was computed. [2020-07-21 15:41:10,779 INFO L268 CegarLoopResult]: For program point testEXIT(lines 907 972) no Hoare annotation was computed. [2020-07-21 15:41:10,779 INFO L264 CegarLoopResult]: At program point L962(lines 917 964) the Hoare annotation is: (let ((.cse1 (= 0 ~pumpRunning~0)) (.cse0 (= 0 ~methAndRunningLastTime~0)) (.cse2 (<= test_~splverifierCounter~0 0)) (.cse3 (<= 1 ~systemActive~0))) (or (not (<= |old(~waterLevel~0)| 1)) (and .cse0 (= 0 ~systemActive~0) .cse1 .cse2) (and .cse0 (<= 1 ~methaneLevelCritical~0) .cse1 .cse2 .cse3) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) .cse0 .cse2 .cse3) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|)))) [2020-07-21 15:41:10,780 INFO L268 CegarLoopResult]: For program point L380(lines 380 387) no Hoare annotation was computed. [2020-07-21 15:41:10,780 INFO L268 CegarLoopResult]: For program point __utac__get_this_argENTRY(lines 360 405) no Hoare annotation was computed. [2020-07-21 15:41:10,780 INFO L268 CegarLoopResult]: For program point L374(lines 374 394) no Hoare annotation was computed. [2020-07-21 15:41:10,780 INFO L268 CegarLoopResult]: For program point L374-1(lines 374 394) no Hoare annotation was computed. [2020-07-21 15:41:10,780 INFO L268 CegarLoopResult]: For program point __utac__get_this_argEXIT(lines 360 405) no Hoare annotation was computed. [2020-07-21 15:41:10,780 INFO L268 CegarLoopResult]: For program point __utac__get_this_argFINAL(lines 360 405) no Hoare annotation was computed. [2020-07-21 15:41:10,780 INFO L264 CegarLoopResult]: At program point activatePump__wrappee__highWaterSensorENTRY(lines 783 790) the Hoare annotation is: (or (not (= 0 ~methAndRunningLastTime~0)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= 0 ~methaneLevelCritical~0)) (= 0 ~pumpRunning~0) (not (<= 2 ~waterLevel~0))) [2020-07-21 15:41:10,780 INFO L268 CegarLoopResult]: For program point activatePump__wrappee__highWaterSensorEXIT(lines 783 790) no Hoare annotation was computed. [2020-07-21 15:41:10,780 INFO L268 CegarLoopResult]: For program point activatePump__wrappee__highWaterSensorFINAL(lines 783 790) no Hoare annotation was computed. [2020-07-21 15:41:10,780 INFO L264 CegarLoopResult]: At program point L479(line 479) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse2 (not (= 0 ~methaneLevelCritical~0))) (.cse1 (not (= 0 ~pumpRunning~0)))) (and (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1) (or .cse0 (not (= 0 |old(~methAndRunningLastTime~0)|)) .cse2) (or .cse0 .cse2 .cse1) (or .cse0 .cse2 (not (<= 2 ~waterLevel~0))) (or (not (= 0 ~systemActive~0)) .cse1))) [2020-07-21 15:41:10,780 INFO L268 CegarLoopResult]: For program point L477(lines 477 483) no Hoare annotation was computed. [2020-07-21 15:41:10,780 INFO L268 CegarLoopResult]: For program point L476(lines 476 486) no Hoare annotation was computed. [2020-07-21 15:41:10,780 INFO L264 CegarLoopResult]: At program point L474(line 474) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (= 0 ~methaneLevelCritical~0)))) (and (or .cse0 (not (= 0 |old(~methAndRunningLastTime~0)|)) .cse1) (or .cse0 .cse1 (not (= 0 ~pumpRunning~0))) (or .cse0 .cse1 (not (<= 2 ~waterLevel~0))))) [2020-07-21 15:41:10,781 INFO L268 CegarLoopResult]: For program point L474-1(line 474) no Hoare annotation was computed. [2020-07-21 15:41:10,781 INFO L268 CegarLoopResult]: For program point L472(lines 472 489) no Hoare annotation was computed. [2020-07-21 15:41:10,781 INFO L268 CegarLoopResult]: For program point L472-1(lines 464 492) no Hoare annotation was computed. [2020-07-21 15:41:10,781 INFO L264 CegarLoopResult]: At program point L470(line 470) the Hoare annotation is: (let ((.cse3 (not (<= 1 ~systemActive~0))) (.cse0 (= 0 ~methAndRunningLastTime~0)) (.cse1 (not (= 0 |old(~methAndRunningLastTime~0)|))) (.cse2 (not (= 0 ~pumpRunning~0)))) (and (or .cse0 (not (= 0 ~systemActive~0)) .cse1 .cse2) (or .cse3 .cse0 .cse1 (not (= 0 ~methaneLevelCritical~0))) (or .cse3 (not (<= 1 ~methaneLevelCritical~0)) .cse0 .cse1 (not (<= 2 ~waterLevel~0)) .cse2))) [2020-07-21 15:41:10,781 INFO L268 CegarLoopResult]: For program point L470-1(line 470) no Hoare annotation was computed. [2020-07-21 15:41:10,781 INFO L264 CegarLoopResult]: At program point __utac_acc__Specification2_spec__2ENTRY(lines 464 492) the Hoare annotation is: (let ((.cse3 (not (<= 1 ~systemActive~0))) (.cse0 (= 0 ~methAndRunningLastTime~0)) (.cse1 (not (= 0 |old(~methAndRunningLastTime~0)|))) (.cse2 (not (= 0 ~pumpRunning~0)))) (and (or .cse0 (not (= 0 ~systemActive~0)) .cse1 .cse2) (or .cse3 .cse0 .cse1 (not (= 0 ~methaneLevelCritical~0))) (or .cse3 (not (<= 1 ~methaneLevelCritical~0)) .cse0 .cse1 (not (<= 2 ~waterLevel~0)) .cse2))) [2020-07-21 15:41:10,781 INFO L268 CegarLoopResult]: For program point __utac_acc__Specification2_spec__2EXIT(lines 464 492) no Hoare annotation was computed. [2020-07-21 15:41:10,781 INFO L264 CegarLoopResult]: At program point __utac_acc__Specification2_spec__1ENTRY(lines 456 463) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0)) (= 0 ~methAndRunningLastTime~0) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 ~methaneLevelCritical~0)) (not (<= ~waterLevel~0 1)) (not (= 0 ~pumpRunning~0))) [2020-07-21 15:41:10,781 INFO L268 CegarLoopResult]: For program point __utac_acc__Specification2_spec__1FINAL(lines 456 463) no Hoare annotation was computed. [2020-07-21 15:41:10,781 INFO L268 CegarLoopResult]: For program point __utac_acc__Specification2_spec__1EXIT(lines 456 463) no Hoare annotation was computed. [2020-07-21 15:41:10,781 INFO L268 CegarLoopResult]: For program point L655(lines 655 663) no Hoare annotation was computed. [2020-07-21 15:41:10,781 INFO L268 CegarLoopResult]: For program point L655-2(lines 655 663) no Hoare annotation was computed. [2020-07-21 15:41:10,781 INFO L268 CegarLoopResult]: For program point printEnvironmentEXIT(lines 647 669) no Hoare annotation was computed. [2020-07-21 15:41:10,782 INFO L268 CegarLoopResult]: For program point printEnvironmentENTRY(lines 647 669) no Hoare annotation was computed. [2020-07-21 15:41:10,782 INFO L268 CegarLoopResult]: For program point printEnvironmentFINAL(lines 647 669) no Hoare annotation was computed. [2020-07-21 15:41:10,782 INFO L268 CegarLoopResult]: For program point select_oneENTRY(lines 53 62) no Hoare annotation was computed. [2020-07-21 15:41:10,782 INFO L268 CegarLoopResult]: For program point select_oneFINAL(lines 53 62) no Hoare annotation was computed. [2020-07-21 15:41:10,782 INFO L268 CegarLoopResult]: For program point select_oneEXIT(lines 53 62) no Hoare annotation was computed. [2020-07-21 15:41:10,782 INFO L268 CegarLoopResult]: For program point L322-1(line 322) no Hoare annotation was computed. [2020-07-21 15:41:10,782 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtENTRY(lines 257 359) no Hoare annotation was computed. [2020-07-21 15:41:10,782 INFO L268 CegarLoopResult]: For program point L281(lines 281 285) no Hoare annotation was computed. [2020-07-21 15:41:10,782 INFO L268 CegarLoopResult]: For program point L345(lines 345 356) no Hoare annotation was computed. [2020-07-21 15:41:10,782 INFO L268 CegarLoopResult]: For program point L308(lines 308 312) no Hoare annotation was computed. [2020-07-21 15:41:10,782 INFO L268 CegarLoopResult]: For program point L306-2(lines 306 326) no Hoare annotation was computed. [2020-07-21 15:41:10,782 INFO L268 CegarLoopResult]: For program point L327(lines 305 328) no Hoare annotation was computed. [2020-07-21 15:41:10,783 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtFINAL(lines 257 359) no Hoare annotation was computed. [2020-07-21 15:41:10,783 INFO L268 CegarLoopResult]: For program point L286(lines 286 302) no Hoare annotation was computed. [2020-07-21 15:41:10,783 INFO L268 CegarLoopResult]: For program point L346(lines 346 353) no Hoare annotation was computed. [2020-07-21 15:41:10,783 INFO L268 CegarLoopResult]: For program point L307(lines 306 326) no Hoare annotation was computed. [2020-07-21 15:41:10,783 INFO L268 CegarLoopResult]: For program point L338(line 338) no Hoare annotation was computed. [2020-07-21 15:41:10,783 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtEXIT(lines 257 359) no Hoare annotation was computed. [2020-07-21 15:41:10,783 INFO L268 CegarLoopResult]: For program point L338-1(line 338) no Hoare annotation was computed. [2020-07-21 15:41:10,783 INFO L268 CegarLoopResult]: For program point L303(lines 303 344) no Hoare annotation was computed. [2020-07-21 15:41:10,783 INFO L268 CegarLoopResult]: For program point L322(line 322) no Hoare annotation was computed. [2020-07-21 15:41:10,784 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 15:41:10,784 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (<= |old(~waterLevel~0)| ~waterLevel~0)) [2020-07-21 15:41:10,784 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 15:41:10,784 INFO L268 CegarLoopResult]: For program point L802-1(lines 791 807) no Hoare annotation was computed. [2020-07-21 15:41:10,784 INFO L268 CegarLoopResult]: For program point L798(lines 798 804) no Hoare annotation was computed. [2020-07-21 15:41:10,784 INFO L264 CegarLoopResult]: At program point L796(line 796) the Hoare annotation is: (let ((.cse0 (not (= 0 ~methAndRunningLastTime~0))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (= 0 ~pumpRunning~0)) (.cse4 (not (<= 2 ~waterLevel~0)))) (and (or .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0)) .cse2 .cse3 .cse4) (or .cse0 .cse1 .cse2 (not (= 0 ~methaneLevelCritical~0)) .cse3 .cse4))) [2020-07-21 15:41:10,784 INFO L268 CegarLoopResult]: For program point activatePumpEXIT(lines 791 807) no Hoare annotation was computed. [2020-07-21 15:41:10,784 INFO L268 CegarLoopResult]: For program point L796-1(line 796) no Hoare annotation was computed. [2020-07-21 15:41:10,785 INFO L264 CegarLoopResult]: At program point activatePumpENTRY(lines 791 807) the Hoare annotation is: (let ((.cse0 (not (= 0 ~methAndRunningLastTime~0))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (= 0 ~pumpRunning~0)) (.cse4 (not (<= 2 ~waterLevel~0)))) (and (or .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0)) .cse2 .cse3 .cse4) (or .cse0 .cse1 .cse2 (not (= 0 ~methaneLevelCritical~0)) .cse3 .cse4))) [2020-07-21 15:41:10,785 INFO L264 CegarLoopResult]: At program point L802(line 802) the Hoare annotation is: (let ((.cse0 (not (= 0 ~methAndRunningLastTime~0))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (not (<= 2 ~waterLevel~0)))) (and (or .cse0 .cse1 (and (= ~methaneLevelCritical~0 activatePump_~tmp~7) (= 0 ~pumpRunning~0)) .cse2 (not (= 0 ~methaneLevelCritical~0)) .cse3) (or .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0)) .cse2 .cse3))) [2020-07-21 15:41:10,785 INFO L268 CegarLoopResult]: For program point getWaterLevelENTRY(lines 670 678) no Hoare annotation was computed. [2020-07-21 15:41:10,785 INFO L268 CegarLoopResult]: For program point getWaterLevelFINAL(lines 670 678) no Hoare annotation was computed. [2020-07-21 15:41:10,785 INFO L268 CegarLoopResult]: For program point getWaterLevelEXIT(lines 670 678) no Hoare annotation was computed. [2020-07-21 15:41:10,785 INFO L268 CegarLoopResult]: For program point L881(lines 881 885) no Hoare annotation was computed. [2020-07-21 15:41:10,785 INFO L268 CegarLoopResult]: For program point isHighWaterLevelEXIT(lines 872 890) no Hoare annotation was computed. [2020-07-21 15:41:10,786 INFO L271 CegarLoopResult]: At program point L879(line 879) the Hoare annotation is: true [2020-07-21 15:41:10,786 INFO L268 CegarLoopResult]: For program point L881-2(lines 881 885) no Hoare annotation was computed. [2020-07-21 15:41:10,786 INFO L268 CegarLoopResult]: For program point L879-1(line 879) no Hoare annotation was computed. [2020-07-21 15:41:10,786 INFO L271 CegarLoopResult]: At program point isHighWaterLevelENTRY(lines 872 890) the Hoare annotation is: true [2020-07-21 15:41:10,786 INFO L268 CegarLoopResult]: For program point isHighWaterLevelFINAL(lines 872 890) no Hoare annotation was computed. [2020-07-21 15:41:10,786 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2020-07-21 15:41:10,786 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intENTRY(line -1) no Hoare annotation was computed. [2020-07-21 15:41:10,786 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intFINAL(line -1) no Hoare annotation was computed. [2020-07-21 15:41:10,787 INFO L264 CegarLoopResult]: At program point changeMethaneLevelENTRY(lines 626 637) the Hoare annotation is: (let ((.cse0 (not (= 0 ~methAndRunningLastTime~0))) (.cse1 (not (<= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (= 0 ~methaneLevelCritical~0) (not (= |old(~methaneLevelCritical~0)| 0))) (or .cse0 .cse1 (<= 1 ~methaneLevelCritical~0) (not (= 0 ~pumpRunning~0)) (not (<= 1 |old(~methaneLevelCritical~0)|))))) [2020-07-21 15:41:10,787 INFO L268 CegarLoopResult]: For program point changeMethaneLevelEXIT(lines 626 637) no Hoare annotation was computed. [2020-07-21 15:41:10,787 INFO L268 CegarLoopResult]: For program point L630-1(lines 626 637) no Hoare annotation was computed. [2020-07-21 15:41:10,787 INFO L271 CegarLoopResult]: At program point isMethaneLevelCriticalENTRY(lines 638 646) the Hoare annotation is: true [2020-07-21 15:41:10,787 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalFINAL(lines 638 646) no Hoare annotation was computed. [2020-07-21 15:41:10,787 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalEXIT(lines 638 646) no Hoare annotation was computed. [2020-07-21 15:41:10,787 INFO L268 CegarLoopResult]: For program point L704(lines 703 722) no Hoare annotation was computed. [2020-07-21 15:41:10,788 INFO L264 CegarLoopResult]: At program point timeShiftENTRY(lines 700 723) the Hoare annotation is: (let ((.cse8 (= 0 ~methAndRunningLastTime~0))) (let ((.cse5 (not (= 0 ~methaneLevelCritical~0))) (.cse3 (and .cse8 (<= ~waterLevel~0 |old(~waterLevel~0)|) (<= |old(~waterLevel~0)| ~waterLevel~0))) (.cse7 (not (= 0 ~systemActive~0))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (<= 1 ~methaneLevelCritical~0))) (.cse2 (not (= 0 |old(~methAndRunningLastTime~0)|))) (.cse4 (not (= 0 |old(~pumpRunning~0)|))) (.cse6 (= 0 ~pumpRunning~0))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse2 .cse4 .cse5 .cse6) (or .cse0 .cse2 .cse5 .cse3) (or .cse7 .cse4 .cse6) (or .cse8 .cse7 .cse2 .cse4) (or .cse0 .cse1 .cse2 .cse4 .cse6)))) [2020-07-21 15:41:10,788 INFO L268 CegarLoopResult]: For program point timeShiftEXIT(lines 700 723) no Hoare annotation was computed. [2020-07-21 15:41:10,788 INFO L264 CegarLoopResult]: At program point L713(line 713) the Hoare annotation is: (let ((.cse3 (<= 1 ~waterLevel~0)) (.cse4 (not (<= 2 |old(~waterLevel~0)|))) (.cse5 (and (= 0 ~methAndRunningLastTime~0) (<= ~waterLevel~0 |old(~waterLevel~0)|))) (.cse2 (not (= 0 ~methaneLevelCritical~0))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse6 (not (<= 1 ~methaneLevelCritical~0))) (.cse8 (and (= 0 ~pumpRunning~0) (<= |old(~waterLevel~0)| ~waterLevel~0))) (.cse1 (not (= 0 |old(~methAndRunningLastTime~0)|))) (.cse7 (not (= 0 |old(~pumpRunning~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse1 .cse2 .cse5) (or .cse0 .cse6 .cse1 .cse3 .cse4) (or .cse0 .cse6 .cse1 .cse5) (or (not (= 0 ~systemActive~0)) .cse7) (or .cse0 .cse8 .cse1 .cse7 .cse2) (or .cse0 .cse6 .cse8 .cse1 .cse7))) [2020-07-21 15:41:10,788 INFO L264 CegarLoopResult]: At program point L711(lines 711 717) the Hoare annotation is: (let ((.cse11 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse10 (= 0 ~pumpRunning~0))) (let ((.cse3 (<= 1 ~waterLevel~0)) (.cse4 (not (<= 2 |old(~waterLevel~0)|))) (.cse8 (<= 2 ~waterLevel~0)) (.cse2 (not (= 0 ~methaneLevelCritical~0))) (.cse9 (<= |old(~waterLevel~0)| ~waterLevel~0)) (.cse6 (= 0 ~methAndRunningLastTime~0)) (.cse13 (not (= 0 ~systemActive~0))) (.cse7 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse5 (not (<= 1 ~methaneLevelCritical~0))) (.cse1 (not (= 0 |old(~methAndRunningLastTime~0)|))) (.cse12 (and .cse11 .cse10))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse5 .cse6 .cse1 .cse7 .cse4) (or .cse0 .cse5 .cse1 .cse3 .cse4) (or .cse0 (and .cse8 .cse9) (and .cse10 .cse9) .cse1 .cse7 .cse2) (or .cse0 (and .cse8 .cse11) .cse1 .cse2 (and .cse6 .cse11) .cse12) (or .cse0 .cse5 .cse1 .cse7 .cse9) (or .cse13 .cse7 .cse10) (or .cse6 .cse13 .cse1 .cse7) (or .cse0 .cse5 .cse1 .cse12)))) [2020-07-21 15:41:10,788 INFO L268 CegarLoopResult]: For program point timeShiftFINAL(lines 700 723) no Hoare annotation was computed. [2020-07-21 15:41:10,789 INFO L264 CegarLoopResult]: At program point L706(line 706) the Hoare annotation is: (let ((.cse3 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (<= 1 ~methaneLevelCritical~0))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse2 (not (= 0 |old(~methAndRunningLastTime~0)|))) (.cse4 (not (= 0 ~methaneLevelCritical~0))) (.cse5 (and (= 0 ~methAndRunningLastTime~0) (<= ~waterLevel~0 |old(~waterLevel~0)|) (<= |old(~waterLevel~0)| ~waterLevel~0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or (not (= 0 ~systemActive~0)) .cse3) (or .cse0 .cse2 .cse3 .cse4) (or .cse0 .cse1 .cse2 .cse5) (or .cse0 .cse2 .cse4 .cse5))) [2020-07-21 15:41:10,789 INFO L268 CegarLoopResult]: For program point cleanupEXIT(lines 496 525) no Hoare annotation was computed. [2020-07-21 15:41:10,789 INFO L268 CegarLoopResult]: For program point L510(lines 510 514) no Hoare annotation was computed. [2020-07-21 15:41:10,789 INFO L271 CegarLoopResult]: At program point L510-1(lines 510 514) the Hoare annotation is: true [2020-07-21 15:41:10,789 INFO L271 CegarLoopResult]: At program point cleanupENTRY(lines 496 525) the Hoare annotation is: true [2020-07-21 15:41:10,789 INFO L268 CegarLoopResult]: For program point L507(line 507) no Hoare annotation was computed. [2020-07-21 15:41:10,789 INFO L271 CegarLoopResult]: At program point L506-2(lines 506 520) the Hoare annotation is: true [2020-07-21 15:41:10,789 INFO L271 CegarLoopResult]: At program point L502(line 502) the Hoare annotation is: true [2020-07-21 15:41:10,790 INFO L268 CegarLoopResult]: For program point L502-1(line 502) no Hoare annotation was computed. [2020-07-21 15:41:10,790 INFO L271 CegarLoopResult]: At program point L521(lines 496 525) the Hoare annotation is: true [2020-07-21 15:41:10,790 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-21 15:41:10,790 INFO L264 CegarLoopResult]: At program point lowerWaterLevelENTRY(lines 602 613) the Hoare annotation is: (let ((.cse0 (not (= 0 ~methAndRunningLastTime~0))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse2 (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (<= |old(~waterLevel~0)| ~waterLevel~0)))) (and (or .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0)) .cse2) (or .cse0 .cse1 (not (= 0 ~methaneLevelCritical~0)) .cse2))) [2020-07-21 15:41:10,790 INFO L268 CegarLoopResult]: For program point L606-1(lines 602 613) no Hoare annotation was computed. [2020-07-21 15:41:10,790 INFO L268 CegarLoopResult]: For program point lowerWaterLevelEXIT(lines 602 613) no Hoare annotation was computed. [2020-07-21 15:41:10,790 INFO L268 CegarLoopResult]: For program point setupEXIT(lines 553 559) no Hoare annotation was computed. [2020-07-21 15:41:10,790 INFO L271 CegarLoopResult]: At program point setupFINAL(lines 553 559) the Hoare annotation is: true [2020-07-21 15:41:10,791 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 15:41:10,791 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (<= 1 ~waterLevel~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0)) [2020-07-21 15:41:10,791 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 15:41:10,791 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 15:41:10,791 INFO L268 CegarLoopResult]: For program point waterRiseEXIT(lines 614 625) no Hoare annotation was computed. [2020-07-21 15:41:10,791 INFO L268 CegarLoopResult]: For program point L618-1(lines 614 625) no Hoare annotation was computed. [2020-07-21 15:41:10,791 INFO L264 CegarLoopResult]: At program point waterRiseENTRY(lines 614 625) the Hoare annotation is: (let ((.cse0 (not (= 0 ~methAndRunningLastTime~0))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse2 (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (<= |old(~waterLevel~0)| ~waterLevel~0)))) (and (or .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0)) (not (= 0 ~pumpRunning~0)) .cse2) (or .cse0 .cse1 (not (= 0 ~methaneLevelCritical~0)) .cse2))) [2020-07-21 15:41:10,791 INFO L268 CegarLoopResult]: For program point __automaton_failFINAL(lines 40 47) no Hoare annotation was computed. [2020-07-21 15:41:10,792 INFO L268 CegarLoopResult]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 44) no Hoare annotation was computed. [2020-07-21 15:41:10,792 INFO L271 CegarLoopResult]: At program point __automaton_failENTRY(lines 40 47) the Hoare annotation is: true [2020-07-21 15:41:10,792 INFO L268 CegarLoopResult]: For program point __automaton_failEXIT(lines 40 47) no Hoare annotation was computed. [2020-07-21 15:41:10,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 03:41:10 BoogieIcfgContainer [2020-07-21 15:41:10,810 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 15:41:10,812 INFO L168 Benchmark]: Toolchain (without parser) took 23847.08 ms. Allocated memory was 136.8 MB in the beginning and 535.3 MB in the end (delta: 398.5 MB). Free memory was 100.5 MB in the beginning and 221.3 MB in the end (delta: -120.7 MB). Peak memory consumption was 418.0 MB. Max. memory is 7.1 GB. [2020-07-21 15:41:10,812 INFO L168 Benchmark]: CDTParser took 0.61 ms. Allocated memory is still 136.8 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 15:41:10,813 INFO L168 Benchmark]: CACSL2BoogieTranslator took 734.32 ms. Allocated memory was 136.8 MB in the beginning and 201.3 MB in the end (delta: 64.5 MB). Free memory was 100.3 MB in the beginning and 170.4 MB in the end (delta: -70.0 MB). Peak memory consumption was 29.7 MB. Max. memory is 7.1 GB. [2020-07-21 15:41:10,814 INFO L168 Benchmark]: Boogie Preprocessor took 91.72 ms. Allocated memory is still 201.3 MB. Free memory was 170.4 MB in the beginning and 166.1 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. [2020-07-21 15:41:10,815 INFO L168 Benchmark]: RCFGBuilder took 1144.25 ms. Allocated memory was 201.3 MB in the beginning and 231.7 MB in the end (delta: 30.4 MB). Free memory was 166.1 MB in the beginning and 193.7 MB in the end (delta: -27.6 MB). Peak memory consumption was 87.4 MB. Max. memory is 7.1 GB. [2020-07-21 15:41:10,815 INFO L168 Benchmark]: TraceAbstraction took 21866.61 ms. Allocated memory was 231.7 MB in the beginning and 535.3 MB in the end (delta: 303.6 MB). Free memory was 193.7 MB in the beginning and 221.3 MB in the end (delta: -27.6 MB). Peak memory consumption was 416.3 MB. Max. memory is 7.1 GB. [2020-07-21 15:41:10,818 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.61 ms. Allocated memory is still 136.8 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 734.32 ms. Allocated memory was 136.8 MB in the beginning and 201.3 MB in the end (delta: 64.5 MB). Free memory was 100.3 MB in the beginning and 170.4 MB in the end (delta: -70.0 MB). Peak memory consumption was 29.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 91.72 ms. Allocated memory is still 201.3 MB. Free memory was 170.4 MB in the beginning and 166.1 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1144.25 ms. Allocated memory was 201.3 MB in the beginning and 231.7 MB in the end (delta: 30.4 MB). Free memory was 166.1 MB in the beginning and 193.7 MB in the end (delta: -27.6 MB). Peak memory consumption was 87.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 21866.61 ms. Allocated memory was 231.7 MB in the beginning and 535.3 MB in the end (delta: 303.6 MB). Free memory was 193.7 MB in the beginning and 221.3 MB in the end (delta: -27.6 MB). Peak memory consumption was 416.3 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: 917]: Loop Invariant Derived loop invariant: (((((((!(\old(waterLevel) <= 1) || (((0 == methAndRunningLastTime && 0 == systemActive) && 0 == pumpRunning) && splverifierCounter <= 0)) || ((((0 == methAndRunningLastTime && 1 <= methaneLevelCritical) && 0 == pumpRunning) && splverifierCounter <= 0) && 1 <= systemActive)) || !(0 == \old(methAndRunningLastTime))) || !(0 == \old(pumpRunning))) || !(\old(methaneLevelCritical) == 0)) || (((0 == methaneLevelCritical && 0 == methAndRunningLastTime) && splverifierCounter <= 0) && 1 <= systemActive)) || !(1 <= \old(waterLevel))) || !(1 <= \old(systemActive)) - InvariantResult [Line: 506]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 496]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 916]: Loop Invariant Derived loop invariant: ((((!(\old(waterLevel) <= 1) || !(0 == \old(methAndRunningLastTime))) || !(0 == \old(pumpRunning))) || !(\old(methaneLevelCritical) == 0)) || !(1 <= \old(waterLevel))) || !(1 <= \old(systemActive)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 243 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 13.7s, OverallIterations: 13, TraceHistogramMax: 6, AutomataDifference: 4.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 8.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2332 SDtfs, 1832 SDslu, 5109 SDs, 0 SdLazy, 2048 SolverSat, 855 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1880 GetRequests, 1814 SyntacticMatches, 1 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1927occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 13 MinimizatonAttempts, 336 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 65 LocationsWithAnnotation, 4965 PreInvPairs, 5199 NumberOfFragments, 2300 HoareAnnotationTreeSize, 4965 FomulaSimplifications, 5602 FormulaSimplificationTreeSizeReduction, 1.9s HoareSimplificationTime, 65 FomulaSimplificationsInter, 21672 FormulaSimplificationTreeSizeReductionInter, 5.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 2.4s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 1714 NumberOfCodeBlocks, 1271 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 1857 ConstructedInterpolants, 0 QuantifiedInterpolants, 438775 SizeOfPredicates, 35 NumberOfNonLiveVariables, 10521 ConjunctsInSsa, 122 ConjunctsInUnsatCore, 14 InterpolantComputations, 12 PerfectInterpolantSequences, 763/785 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...