/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_FUNCTIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product49.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 13:02:01,834 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 13:02:01,837 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 13:02:01,858 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 13:02:01,859 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 13:02:01,861 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 13:02:01,863 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 13:02:01,876 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 13:02:01,879 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 13:02:01,879 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 13:02:01,882 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 13:02:01,884 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 13:02:01,884 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 13:02:01,887 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 13:02:01,891 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 13:02:01,893 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 13:02:01,895 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 13:02:01,896 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 13:02:01,898 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 13:02:01,904 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 13:02:01,906 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 13:02:01,911 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 13:02:01,913 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 13:02:01,913 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 13:02:01,916 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-20 13:02:01,917 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-20 13:02:01,917 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-20 13:02:01,920 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-20 13:02:01,920 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-20 13:02:01,922 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-20 13:02:01,922 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-20 13:02:01,924 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-20 13:02:01,925 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-20 13:02:01,928 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-20 13:02:01,929 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-20 13:02:01,929 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-20 13:02:01,930 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-20 13:02:01,930 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-20 13:02:01,930 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 13:02:01,931 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 13:02:01,933 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 13:02:01,934 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-20 13:02:01,959 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 13:02:01,959 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 13:02:01,962 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 13:02:01,962 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 13:02:01,962 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 13:02:01,963 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 13:02:01,963 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 13:02:01,963 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 13:02:01,963 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 13:02:01,963 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 13:02:01,964 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 13:02:01,965 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 13:02:01,965 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 13:02:01,965 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 13:02:01,966 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 13:02:01,966 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 13:02:01,966 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 13:02:01,966 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 13:02:01,966 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 13:02:01,967 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 13:02:01,967 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 13:02:01,967 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 13:02:01,967 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 13:02:01,967 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 13:02:01,968 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 13:02:01,968 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 13:02:01,968 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:01,968 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 13:02:01,968 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 13:02:01,968 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_FUNCTIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-20 13:02:02,247 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 13:02:02,269 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 13:02:02,272 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 13:02:02,274 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 13:02:02,277 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 13:02:02,277 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product49.cil.c [2020-07-20 13:02:02,347 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7096c4ca2/c31bf0907d6c4a5b81caa72df0e71cfb/FLAG329e2fe48 [2020-07-20 13:02:02,897 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 13:02:02,898 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product49.cil.c [2020-07-20 13:02:02,912 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7096c4ca2/c31bf0907d6c4a5b81caa72df0e71cfb/FLAG329e2fe48 [2020-07-20 13:02:03,255 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7096c4ca2/c31bf0907d6c4a5b81caa72df0e71cfb [2020-07-20 13:02:03,263 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 13:02:03,267 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 13:02:03,268 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 13:02:03,268 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 13:02:03,271 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 13:02:03,271 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:02:03" (1/1) ... [2020-07-20 13:02:03,274 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39b899ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:02:03, skipping insertion in model container [2020-07-20 13:02:03,274 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:02:03" (1/1) ... [2020-07-20 13:02:03,281 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 13:02:03,323 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 13:02:03,728 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 13:02:03,741 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 13:02:03,861 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 13:02:03,896 INFO L208 MainTranslator]: Completed translation [2020-07-20 13:02:03,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:02:03 WrapperNode [2020-07-20 13:02:03,897 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 13:02:03,898 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 13:02:03,898 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 13:02:03,898 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 13:02:03,910 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:02:03" (1/1) ... [2020-07-20 13:02:03,910 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:02:03" (1/1) ... [2020-07-20 13:02:03,927 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:02:03" (1/1) ... [2020-07-20 13:02:03,928 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:02:03" (1/1) ... [2020-07-20 13:02:03,961 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:02:03" (1/1) ... [2020-07-20 13:02:03,972 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:02:03" (1/1) ... [2020-07-20 13:02:03,977 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:02:03" (1/1) ... [2020-07-20 13:02:03,985 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 13:02:03,985 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 13:02:03,985 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 13:02:03,986 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 13:02:03,987 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:02:03" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 13:02:04,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 13:02:04,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 13:02:04,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-20 13:02:04,051 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-20 13:02:04,051 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-20 13:02:04,051 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-20 13:02:04,051 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-20 13:02:04,052 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 13:02:04,052 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-20 13:02:04,052 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-20 13:02:04,052 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-20 13:02:04,052 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-20 13:02:04,052 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-20 13:02:04,053 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-20 13:02:04,053 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-20 13:02:04,053 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-07-20 13:02:04,053 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-07-20 13:02:04,053 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-07-20 13:02:04,054 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-20 13:02:04,054 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-20 13:02:04,054 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-20 13:02:04,054 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-07-20 13:02:04,054 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-20 13:02:04,054 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-20 13:02:04,054 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-20 13:02:04,055 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-20 13:02:04,055 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-20 13:02:04,055 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-20 13:02:04,055 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-20 13:02:04,055 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-07-20 13:02:04,055 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-20 13:02:04,056 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-20 13:02:04,056 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-20 13:02:04,056 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-20 13:02:04,056 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-20 13:02:04,056 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-20 13:02:04,057 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-20 13:02:04,057 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-20 13:02:04,057 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-20 13:02:04,057 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-20 13:02:04,057 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-20 13:02:04,057 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 13:02:04,057 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 13:02:04,058 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-20 13:02:04,058 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-20 13:02:04,058 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-20 13:02:04,058 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-20 13:02:04,058 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-20 13:02:04,058 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-20 13:02:04,059 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-20 13:02:04,059 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-20 13:02:04,059 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-07-20 13:02:04,059 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-20 13:02:04,059 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-20 13:02:04,059 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-20 13:02:04,060 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-20 13:02:04,060 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-20 13:02:04,060 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 13:02:04,060 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-20 13:02:04,060 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-20 13:02:04,060 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-20 13:02:04,061 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-20 13:02:04,061 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-20 13:02:04,061 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-07-20 13:02:04,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-20 13:02:04,061 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-20 13:02:04,061 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-20 13:02:04,061 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-07-20 13:02:04,062 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-20 13:02:04,062 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-20 13:02:04,062 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-20 13:02:04,062 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-20 13:02:04,062 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-20 13:02:04,062 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-07-20 13:02:04,062 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-07-20 13:02:04,063 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-20 13:02:04,063 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-20 13:02:04,063 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-20 13:02:04,063 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-20 13:02:04,063 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-20 13:02:04,063 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-20 13:02:04,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-20 13:02:04,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-20 13:02:04,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-20 13:02:04,064 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-20 13:02:04,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-20 13:02:04,064 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-20 13:02:04,065 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-20 13:02:04,065 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-20 13:02:04,065 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-20 13:02:04,065 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-20 13:02:04,065 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-20 13:02:04,065 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-20 13:02:04,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 13:02:04,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-20 13:02:04,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 13:02:05,122 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 13:02:05,122 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-20 13:02:05,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 01:02:05 BoogieIcfgContainer [2020-07-20 13:02:05,127 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 13:02:05,129 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 13:02:05,129 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 13:02:05,132 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 13:02:05,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 01:02:03" (1/3) ... [2020-07-20 13:02:05,133 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4088db83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 01:02:05, skipping insertion in model container [2020-07-20 13:02:05,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:02:03" (2/3) ... [2020-07-20 13:02:05,133 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4088db83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 01:02:05, skipping insertion in model container [2020-07-20 13:02:05,134 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 01:02:05" (3/3) ... [2020-07-20 13:02:05,135 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product49.cil.c [2020-07-20 13:02:05,144 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 13:02:05,151 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 13:02:05,163 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 13:02:05,182 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 13:02:05,182 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 13:02:05,182 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 13:02:05,183 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 13:02:05,183 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 13:02:05,183 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 13:02:05,183 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 13:02:05,184 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 13:02:05,206 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states. [2020-07-20 13:02:05,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-20 13:02:05,215 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:02:05,216 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:02:05,216 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:02:05,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:02:05,222 INFO L82 PathProgramCache]: Analyzing trace with hash -154299971, now seen corresponding path program 1 times [2020-07-20 13:02:05,231 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:02:05,231 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [726967749] [2020-07-20 13:02:05,232 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:05,786 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 13:02:05,787 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:02:05,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 648 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-20 13:02:05,803 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:02:05,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 13:02:05,835 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:02:05,836 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [726967749] [2020-07-20 13:02:05,837 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:02:05,837 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-20 13:02:05,838 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008748981] [2020-07-20 13:02:05,844 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-20 13:02:05,844 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:02:05,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-20 13:02:05,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-20 13:02:05,863 INFO L87 Difference]: Start difference. First operand 179 states. Second operand 2 states. [2020-07-20 13:02:05,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:02:05,908 INFO L93 Difference]: Finished difference Result 262 states and 325 transitions. [2020-07-20 13:02:05,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-20 13:02:05,910 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2020-07-20 13:02:05,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:02:05,924 INFO L225 Difference]: With dead ends: 262 [2020-07-20 13:02:05,925 INFO L226 Difference]: Without dead ends: 133 [2020-07-20 13:02:05,929 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-20 13:02:05,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2020-07-20 13:02:05,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2020-07-20 13:02:05,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-07-20 13:02:05,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 156 transitions. [2020-07-20 13:02:05,989 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 156 transitions. Word has length 51 [2020-07-20 13:02:05,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:02:05,989 INFO L479 AbstractCegarLoop]: Abstraction has 133 states and 156 transitions. [2020-07-20 13:02:05,989 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-20 13:02:05,990 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 156 transitions. [2020-07-20 13:02:05,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-20 13:02:05,994 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:02:05,994 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:02:06,209 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:06,210 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:02:06,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:02:06,211 INFO L82 PathProgramCache]: Analyzing trace with hash 401693438, now seen corresponding path program 1 times [2020-07-20 13:02:06,212 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:02:06,212 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [394308546] [2020-07-20 13:02:06,213 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:06,669 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 13:02:06,669 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:02:06,675 INFO L263 TraceCheckSpWp]: Trace formula consists of 636 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-20 13:02:06,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:02:06,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 13:02:06,719 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:02:06,720 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [394308546] [2020-07-20 13:02:06,720 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:02:06,720 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 13:02:06,721 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660776835] [2020-07-20 13:02:06,722 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 13:02:06,723 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:02:06,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 13:02:06,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:02:06,723 INFO L87 Difference]: Start difference. First operand 133 states and 156 transitions. Second operand 3 states. [2020-07-20 13:02:06,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:02:06,745 INFO L93 Difference]: Finished difference Result 211 states and 247 transitions. [2020-07-20 13:02:06,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 13:02:06,746 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-07-20 13:02:06,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:02:06,749 INFO L225 Difference]: With dead ends: 211 [2020-07-20 13:02:06,749 INFO L226 Difference]: Without dead ends: 124 [2020-07-20 13:02:06,751 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:02:06,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-07-20 13:02:06,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2020-07-20 13:02:06,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2020-07-20 13:02:06,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 144 transitions. [2020-07-20 13:02:06,772 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 144 transitions. Word has length 52 [2020-07-20 13:02:06,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:02:06,772 INFO L479 AbstractCegarLoop]: Abstraction has 124 states and 144 transitions. [2020-07-20 13:02:06,773 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 13:02:06,773 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 144 transitions. [2020-07-20 13:02:06,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-07-20 13:02:06,777 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:02:06,777 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:02:06,992 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:06,993 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:02:06,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:02:06,994 INFO L82 PathProgramCache]: Analyzing trace with hash 1332267464, now seen corresponding path program 1 times [2020-07-20 13:02:06,994 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:02:06,995 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1551920297] [2020-07-20 13:02:06,995 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:07,383 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 13:02:07,383 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:02:07,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 678 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-20 13:02:07,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:02:07,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 13:02:07,415 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:02:07,415 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1551920297] [2020-07-20 13:02:07,415 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:02:07,415 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 13:02:07,416 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082780734] [2020-07-20 13:02:07,417 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 13:02:07,418 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:02:07,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 13:02:07,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:02:07,419 INFO L87 Difference]: Start difference. First operand 124 states and 144 transitions. Second operand 3 states. [2020-07-20 13:02:07,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:02:07,451 INFO L93 Difference]: Finished difference Result 220 states and 261 transitions. [2020-07-20 13:02:07,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 13:02:07,453 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 56 [2020-07-20 13:02:07,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:02:07,456 INFO L225 Difference]: With dead ends: 220 [2020-07-20 13:02:07,457 INFO L226 Difference]: Without dead ends: 124 [2020-07-20 13:02:07,458 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:02:07,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-07-20 13:02:07,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2020-07-20 13:02:07,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2020-07-20 13:02:07,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 143 transitions. [2020-07-20 13:02:07,483 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 143 transitions. Word has length 56 [2020-07-20 13:02:07,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:02:07,485 INFO L479 AbstractCegarLoop]: Abstraction has 124 states and 143 transitions. [2020-07-20 13:02:07,485 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 13:02:07,486 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 143 transitions. [2020-07-20 13:02:07,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-07-20 13:02:07,490 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:02:07,491 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:02:07,691 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:07,692 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:02:07,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:02:07,693 INFO L82 PathProgramCache]: Analyzing trace with hash -877153324, now seen corresponding path program 1 times [2020-07-20 13:02:07,693 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:02:07,694 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1432850139] [2020-07-20 13:02:07,695 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:08,097 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 13:02:08,097 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:02:08,101 INFO L263 TraceCheckSpWp]: Trace formula consists of 674 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 13:02:08,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:02:08,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 13:02:08,185 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:02:08,186 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1432850139] [2020-07-20 13:02:08,186 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:02:08,186 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 13:02:08,186 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668923818] [2020-07-20 13:02:08,187 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 13:02:08,187 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:02:08,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 13:02:08,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-20 13:02:08,188 INFO L87 Difference]: Start difference. First operand 124 states and 143 transitions. Second operand 6 states. [2020-07-20 13:02:08,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:02:08,812 INFO L93 Difference]: Finished difference Result 297 states and 361 transitions. [2020-07-20 13:02:08,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 13:02:08,813 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 69 [2020-07-20 13:02:08,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:02:08,816 INFO L225 Difference]: With dead ends: 297 [2020-07-20 13:02:08,816 INFO L226 Difference]: Without dead ends: 201 [2020-07-20 13:02:08,817 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-20 13:02:08,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2020-07-20 13:02:08,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 186. [2020-07-20 13:02:08,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2020-07-20 13:02:08,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 211 transitions. [2020-07-20 13:02:08,846 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 211 transitions. Word has length 69 [2020-07-20 13:02:08,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:02:08,846 INFO L479 AbstractCegarLoop]: Abstraction has 186 states and 211 transitions. [2020-07-20 13:02:08,846 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 13:02:08,846 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 211 transitions. [2020-07-20 13:02:08,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-07-20 13:02:08,848 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:02:08,848 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:02:09,061 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:09,062 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:02:09,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:02:09,063 INFO L82 PathProgramCache]: Analyzing trace with hash -1061705923, now seen corresponding path program 1 times [2020-07-20 13:02:09,064 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:02:09,064 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [746655983] [2020-07-20 13:02:09,066 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:09,429 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 13:02:09,430 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:02:09,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 738 conjuncts, 23 conjunts are in the unsatisfiable core [2020-07-20 13:02:09,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:02:09,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 13:02:09,491 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:02:09,491 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [746655983] [2020-07-20 13:02:09,491 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:02:09,492 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 13:02:09,493 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192901950] [2020-07-20 13:02:09,494 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 13:02:09,495 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:02:09,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 13:02:09,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-20 13:02:09,497 INFO L87 Difference]: Start difference. First operand 186 states and 211 transitions. Second operand 6 states. [2020-07-20 13:02:09,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:02:09,728 INFO L93 Difference]: Finished difference Result 489 states and 575 transitions. [2020-07-20 13:02:09,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 13:02:09,729 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 83 [2020-07-20 13:02:09,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:02:09,734 INFO L225 Difference]: With dead ends: 489 [2020-07-20 13:02:09,734 INFO L226 Difference]: Without dead ends: 331 [2020-07-20 13:02:09,735 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-20 13:02:09,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2020-07-20 13:02:09,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 327. [2020-07-20 13:02:09,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 327 states. [2020-07-20 13:02:09,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 372 transitions. [2020-07-20 13:02:09,775 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 372 transitions. Word has length 83 [2020-07-20 13:02:09,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:02:09,775 INFO L479 AbstractCegarLoop]: Abstraction has 327 states and 372 transitions. [2020-07-20 13:02:09,775 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 13:02:09,775 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 372 transitions. [2020-07-20 13:02:09,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-07-20 13:02:09,777 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:02:09,778 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:02:09,991 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:09,992 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:02:09,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:02:09,993 INFO L82 PathProgramCache]: Analyzing trace with hash -1506381919, now seen corresponding path program 1 times [2020-07-20 13:02:09,993 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:02:09,994 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1216451451] [2020-07-20 13:02:09,995 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:10,331 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 13:02:10,332 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:02:10,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 748 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 13:02:10,338 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:02:10,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 13:02:10,395 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:02:10,396 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1216451451] [2020-07-20 13:02:10,396 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:02:10,396 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 13:02:10,396 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806344376] [2020-07-20 13:02:10,397 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 13:02:10,397 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:02:10,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 13:02:10,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-20 13:02:10,398 INFO L87 Difference]: Start difference. First operand 327 states and 372 transitions. Second operand 6 states. [2020-07-20 13:02:10,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:02:10,617 INFO L93 Difference]: Finished difference Result 629 states and 724 transitions. [2020-07-20 13:02:10,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 13:02:10,618 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 87 [2020-07-20 13:02:10,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:02:10,621 INFO L225 Difference]: With dead ends: 629 [2020-07-20 13:02:10,622 INFO L226 Difference]: Without dead ends: 330 [2020-07-20 13:02:10,625 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-20 13:02:10,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2020-07-20 13:02:10,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 326. [2020-07-20 13:02:10,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 326 states. [2020-07-20 13:02:10,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 369 transitions. [2020-07-20 13:02:10,678 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 369 transitions. Word has length 87 [2020-07-20 13:02:10,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:02:10,679 INFO L479 AbstractCegarLoop]: Abstraction has 326 states and 369 transitions. [2020-07-20 13:02:10,679 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 13:02:10,681 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 369 transitions. [2020-07-20 13:02:10,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-07-20 13:02:10,687 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:02:10,688 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:02:10,888 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:10,889 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:02:10,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:02:10,889 INFO L82 PathProgramCache]: Analyzing trace with hash 1049604760, now seen corresponding path program 1 times [2020-07-20 13:02:10,889 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:02:10,889 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [140607938] [2020-07-20 13:02:10,890 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:11,303 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 13:02:11,304 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:02:11,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 751 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 13:02:11,313 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:02:11,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 13:02:11,347 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:02:11,347 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [140607938] [2020-07-20 13:02:11,347 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:02:11,347 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 13:02:11,348 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410738266] [2020-07-20 13:02:11,348 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 13:02:11,348 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:02:11,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 13:02:11,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-20 13:02:11,349 INFO L87 Difference]: Start difference. First operand 326 states and 369 transitions. Second operand 6 states. [2020-07-20 13:02:11,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:02:11,404 INFO L93 Difference]: Finished difference Result 634 states and 728 transitions. [2020-07-20 13:02:11,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 13:02:11,407 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 88 [2020-07-20 13:02:11,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:02:11,414 INFO L225 Difference]: With dead ends: 634 [2020-07-20 13:02:11,414 INFO L226 Difference]: Without dead ends: 336 [2020-07-20 13:02:11,416 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-20 13:02:11,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2020-07-20 13:02:11,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 336. [2020-07-20 13:02:11,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 336 states. [2020-07-20 13:02:11,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 379 transitions. [2020-07-20 13:02:11,446 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 379 transitions. Word has length 88 [2020-07-20 13:02:11,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:02:11,446 INFO L479 AbstractCegarLoop]: Abstraction has 336 states and 379 transitions. [2020-07-20 13:02:11,446 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 13:02:11,446 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 379 transitions. [2020-07-20 13:02:11,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-07-20 13:02:11,449 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:02:11,450 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:02:11,656 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:11,657 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:02:11,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:02:11,658 INFO L82 PathProgramCache]: Analyzing trace with hash 1751204634, now seen corresponding path program 1 times [2020-07-20 13:02:11,658 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:02:11,659 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1420055082] [2020-07-20 13:02:11,659 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:12,051 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 13:02:12,052 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:02:12,056 INFO L263 TraceCheckSpWp]: Trace formula consists of 752 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-20 13:02:12,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:02:12,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 13:02:12,089 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:02:12,089 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1420055082] [2020-07-20 13:02:12,089 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:02:12,090 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 13:02:12,090 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771735264] [2020-07-20 13:02:12,090 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 13:02:12,090 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:02:12,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 13:02:12,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 13:02:12,091 INFO L87 Difference]: Start difference. First operand 336 states and 379 transitions. Second operand 5 states. [2020-07-20 13:02:12,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:02:12,128 INFO L93 Difference]: Finished difference Result 658 states and 760 transitions. [2020-07-20 13:02:12,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 13:02:12,129 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 88 [2020-07-20 13:02:12,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:02:12,132 INFO L225 Difference]: With dead ends: 658 [2020-07-20 13:02:12,132 INFO L226 Difference]: Without dead ends: 350 [2020-07-20 13:02:12,133 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 13:02:12,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2020-07-20 13:02:12,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 344. [2020-07-20 13:02:12,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 344 states. [2020-07-20 13:02:12,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 387 transitions. [2020-07-20 13:02:12,154 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 387 transitions. Word has length 88 [2020-07-20 13:02:12,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:02:12,154 INFO L479 AbstractCegarLoop]: Abstraction has 344 states and 387 transitions. [2020-07-20 13:02:12,154 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 13:02:12,154 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 387 transitions. [2020-07-20 13:02:12,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-07-20 13:02:12,156 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:02:12,156 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:02:12,368 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:12,369 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:02:12,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:02:12,370 INFO L82 PathProgramCache]: Analyzing trace with hash -818281765, now seen corresponding path program 1 times [2020-07-20 13:02:12,370 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:02:12,371 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [142039459] [2020-07-20 13:02:12,371 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:12,812 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 13:02:12,812 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:02:12,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 711 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-20 13:02:12,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:02:12,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 13:02:12,847 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:02:12,847 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [142039459] [2020-07-20 13:02:12,847 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:02:12,848 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 13:02:12,848 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442202556] [2020-07-20 13:02:12,848 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 13:02:12,849 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:02:12,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 13:02:12,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:02:12,852 INFO L87 Difference]: Start difference. First operand 344 states and 387 transitions. Second operand 3 states. [2020-07-20 13:02:12,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:02:12,917 INFO L93 Difference]: Finished difference Result 920 states and 1085 transitions. [2020-07-20 13:02:12,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 13:02:12,917 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 88 [2020-07-20 13:02:12,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:02:12,922 INFO L225 Difference]: With dead ends: 920 [2020-07-20 13:02:12,922 INFO L226 Difference]: Without dead ends: 604 [2020-07-20 13:02:12,924 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 85 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:02:12,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2020-07-20 13:02:12,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 601. [2020-07-20 13:02:12,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2020-07-20 13:02:12,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 696 transitions. [2020-07-20 13:02:12,972 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 696 transitions. Word has length 88 [2020-07-20 13:02:12,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:02:12,974 INFO L479 AbstractCegarLoop]: Abstraction has 601 states and 696 transitions. [2020-07-20 13:02:12,974 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 13:02:12,974 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 696 transitions. [2020-07-20 13:02:12,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-07-20 13:02:12,978 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:02:12,978 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:02:13,193 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:13,194 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:02:13,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:02:13,195 INFO L82 PathProgramCache]: Analyzing trace with hash -470187979, now seen corresponding path program 1 times [2020-07-20 13:02:13,195 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:02:13,196 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2140986673] [2020-07-20 13:02:13,196 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:13,595 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 13:02:13,595 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:02:13,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 761 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-20 13:02:13,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:02:13,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 13:02:13,628 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:02:13,629 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2140986673] [2020-07-20 13:02:13,629 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:02:13,629 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 13:02:13,629 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388641277] [2020-07-20 13:02:13,630 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 13:02:13,630 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:02:13,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 13:02:13,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:02:13,631 INFO L87 Difference]: Start difference. First operand 601 states and 696 transitions. Second operand 3 states. [2020-07-20 13:02:13,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:02:13,684 INFO L93 Difference]: Finished difference Result 902 states and 1061 transitions. [2020-07-20 13:02:13,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 13:02:13,684 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 92 [2020-07-20 13:02:13,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:02:13,690 INFO L225 Difference]: With dead ends: 902 [2020-07-20 13:02:13,690 INFO L226 Difference]: Without dead ends: 899 [2020-07-20 13:02:13,691 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:02:13,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 899 states. [2020-07-20 13:02:13,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 899 to 755. [2020-07-20 13:02:13,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 755 states. [2020-07-20 13:02:13,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 755 states to 755 states and 888 transitions. [2020-07-20 13:02:13,739 INFO L78 Accepts]: Start accepts. Automaton has 755 states and 888 transitions. Word has length 92 [2020-07-20 13:02:13,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:02:13,740 INFO L479 AbstractCegarLoop]: Abstraction has 755 states and 888 transitions. [2020-07-20 13:02:13,740 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 13:02:13,740 INFO L276 IsEmpty]: Start isEmpty. Operand 755 states and 888 transitions. [2020-07-20 13:02:13,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-07-20 13:02:13,743 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:02:13,744 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:02:13,957 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:13,958 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:02:13,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:02:13,958 INFO L82 PathProgramCache]: Analyzing trace with hash 956550023, now seen corresponding path program 1 times [2020-07-20 13:02:13,958 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:02:13,959 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [332744133] [2020-07-20 13:02:13,959 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:14,299 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 13:02:14,300 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:02:14,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 904 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 13:02:14,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:02:14,358 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 13:02:14,358 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:02:14,359 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [332744133] [2020-07-20 13:02:14,359 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:02:14,359 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 13:02:14,359 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369763577] [2020-07-20 13:02:14,360 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 13:02:14,360 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:02:14,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 13:02:14,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-20 13:02:14,361 INFO L87 Difference]: Start difference. First operand 755 states and 888 transitions. Second operand 5 states. [2020-07-20 13:02:15,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:02:15,112 INFO L93 Difference]: Finished difference Result 1946 states and 2414 transitions. [2020-07-20 13:02:15,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 13:02:15,113 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 152 [2020-07-20 13:02:15,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:02:15,121 INFO L225 Difference]: With dead ends: 1946 [2020-07-20 13:02:15,121 INFO L226 Difference]: Without dead ends: 1219 [2020-07-20 13:02:15,125 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 13:02:15,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1219 states. [2020-07-20 13:02:15,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1219 to 1118. [2020-07-20 13:02:15,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1118 states. [2020-07-20 13:02:15,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1118 states to 1118 states and 1326 transitions. [2020-07-20 13:02:15,214 INFO L78 Accepts]: Start accepts. Automaton has 1118 states and 1326 transitions. Word has length 152 [2020-07-20 13:02:15,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:02:15,214 INFO L479 AbstractCegarLoop]: Abstraction has 1118 states and 1326 transitions. [2020-07-20 13:02:15,215 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 13:02:15,215 INFO L276 IsEmpty]: Start isEmpty. Operand 1118 states and 1326 transitions. [2020-07-20 13:02:15,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-07-20 13:02:15,219 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:02:15,219 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:02:15,435 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:15,436 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:02:15,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:02:15,436 INFO L82 PathProgramCache]: Analyzing trace with hash 1309638405, now seen corresponding path program 1 times [2020-07-20 13:02:15,436 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:02:15,437 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [921201364] [2020-07-20 13:02:15,437 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:15,754 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 13:02:15,755 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:02:15,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 906 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-20 13:02:15,762 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:02:15,859 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 13:02:15,859 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:02:15,859 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [921201364] [2020-07-20 13:02:15,859 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:02:15,860 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-20 13:02:15,860 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341474378] [2020-07-20 13:02:15,860 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-20 13:02:15,860 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:02:15,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-20 13:02:15,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-07-20 13:02:15,861 INFO L87 Difference]: Start difference. First operand 1118 states and 1326 transitions. Second operand 9 states. [2020-07-20 13:02:17,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:02:17,788 INFO L93 Difference]: Finished difference Result 3007 states and 3902 transitions. [2020-07-20 13:02:17,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-20 13:02:17,789 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 152 [2020-07-20 13:02:17,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:02:17,807 INFO L225 Difference]: With dead ends: 3007 [2020-07-20 13:02:17,808 INFO L226 Difference]: Without dead ends: 1917 [2020-07-20 13:02:17,817 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2020-07-20 13:02:17,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1917 states. [2020-07-20 13:02:17,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1917 to 1550. [2020-07-20 13:02:17,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1550 states. [2020-07-20 13:02:17,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1550 states to 1550 states and 1851 transitions. [2020-07-20 13:02:17,947 INFO L78 Accepts]: Start accepts. Automaton has 1550 states and 1851 transitions. Word has length 152 [2020-07-20 13:02:17,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:02:17,947 INFO L479 AbstractCegarLoop]: Abstraction has 1550 states and 1851 transitions. [2020-07-20 13:02:17,947 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-20 13:02:17,948 INFO L276 IsEmpty]: Start isEmpty. Operand 1550 states and 1851 transitions. [2020-07-20 13:02:17,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-07-20 13:02:17,951 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:02:17,952 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:02:18,165 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:18,166 INFO L427 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:02:18,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:02:18,167 INFO L82 PathProgramCache]: Analyzing trace with hash 1237251847, now seen corresponding path program 1 times [2020-07-20 13:02:18,168 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:02:18,168 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2117189635] [2020-07-20 13:02:18,168 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:18,557 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 13:02:18,557 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:02:18,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 907 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 13:02:18,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:02:18,607 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-07-20 13:02:18,607 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:02:18,608 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2117189635] [2020-07-20 13:02:18,608 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:02:18,608 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 13:02:18,608 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188771034] [2020-07-20 13:02:18,608 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 13:02:18,609 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:02:18,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 13:02:18,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-20 13:02:18,609 INFO L87 Difference]: Start difference. First operand 1550 states and 1851 transitions. Second operand 6 states. [2020-07-20 13:02:18,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:02:18,665 INFO L93 Difference]: Finished difference Result 2087 states and 2491 transitions. [2020-07-20 13:02:18,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 13:02:18,666 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 152 [2020-07-20 13:02:18,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:02:18,667 INFO L225 Difference]: With dead ends: 2087 [2020-07-20 13:02:18,667 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 13:02:18,672 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-20 13:02:18,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 13:02:18,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 13:02:18,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 13:02:18,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 13:02:18,673 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 152 [2020-07-20 13:02:18,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:02:18,674 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 13:02:18,674 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 13:02:18,674 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 13:02:18,674 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 13:02:18,889 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:18,893 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 13:02:20,547 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 20 [2020-07-20 13:02:20,773 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 34 [2020-07-20 13:02:20,902 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 33 [2020-07-20 13:02:21,136 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 25 [2020-07-20 13:02:21,406 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 26 [2020-07-20 13:02:21,885 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 35 [2020-07-20 13:02:22,505 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 33 [2020-07-20 13:02:23,303 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 36 [2020-07-20 13:02:23,308 INFO L268 CegarLoopResult]: For program point L638(line 638) no Hoare annotation was computed. [2020-07-20 13:02:23,308 INFO L268 CegarLoopResult]: For program point L637-2(lines 637 658) no Hoare annotation was computed. [2020-07-20 13:02:23,309 INFO L268 CegarLoopResult]: For program point L659(lines 636 660) no Hoare annotation was computed. [2020-07-20 13:02:23,309 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeFINAL(lines 612 667) no Hoare annotation was computed. [2020-07-20 13:02:23,309 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeEXIT(lines 612 667) no Hoare annotation was computed. [2020-07-20 13:02:23,309 INFO L268 CegarLoopResult]: For program point L643(lines 643 647) no Hoare annotation was computed. [2020-07-20 13:02:23,309 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeENTRY(lines 612 667) no Hoare annotation was computed. [2020-07-20 13:02:23,309 INFO L268 CegarLoopResult]: For program point L643-1(lines 643 647) no Hoare annotation was computed. [2020-07-20 13:02:23,309 INFO L268 CegarLoopResult]: For program point L700(lines 700 704) no Hoare annotation was computed. [2020-07-20 13:02:23,309 INFO L268 CegarLoopResult]: For program point L700-1(lines 700 704) no Hoare annotation was computed. [2020-07-20 13:02:23,309 INFO L268 CegarLoopResult]: For program point L695(line 695) no Hoare annotation was computed. [2020-07-20 13:02:23,309 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetFINAL(lines 668 727) no Hoare annotation was computed. [2020-07-20 13:02:23,309 INFO L268 CegarLoopResult]: For program point L694-2(lines 694 719) no Hoare annotation was computed. [2020-07-20 13:02:23,310 INFO L268 CegarLoopResult]: For program point L720(lines 693 721) no Hoare annotation was computed. [2020-07-20 13:02:23,310 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetENTRY(lines 668 727) no Hoare annotation was computed. [2020-07-20 13:02:23,310 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetEXIT(lines 668 727) no Hoare annotation was computed. [2020-07-20 13:02:23,310 INFO L268 CegarLoopResult]: For program point L713(line 713) no Hoare annotation was computed. [2020-07-20 13:02:23,310 INFO L268 CegarLoopResult]: For program point L713-1(line 713) no Hoare annotation was computed. [2020-07-20 13:02:23,310 INFO L271 CegarLoopResult]: At program point select_helpersFINAL(lines 953 959) the Hoare annotation is: true [2020-07-20 13:02:23,310 INFO L268 CegarLoopResult]: For program point select_helpersEXIT(lines 953 959) no Hoare annotation was computed. [2020-07-20 13:02:23,310 INFO L268 CegarLoopResult]: For program point valid_productEXIT(lines 960 968) no Hoare annotation was computed. [2020-07-20 13:02:23,310 INFO L271 CegarLoopResult]: At program point valid_productENTRY(lines 960 968) the Hoare annotation is: true [2020-07-20 13:02:23,310 INFO L268 CegarLoopResult]: For program point valid_productFINAL(lines 960 968) no Hoare annotation was computed. [2020-07-20 13:02:23,311 INFO L264 CegarLoopResult]: At program point L129(line 129) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 1 |old(~waterLevel~0)|))) [2020-07-20 13:02:23,311 INFO L264 CegarLoopResult]: At program point L128(line 128) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 1 |old(~waterLevel~0)|))) [2020-07-20 13:02:23,311 INFO L264 CegarLoopResult]: At program point L128-1(line 128) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 1 |old(~waterLevel~0)|))) [2020-07-20 13:02:23,311 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 122 144) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 1 |old(~waterLevel~0)|))) [2020-07-20 13:02:23,312 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 122 144) no Hoare annotation was computed. [2020-07-20 13:02:23,312 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 122 144) no Hoare annotation was computed. [2020-07-20 13:02:23,312 INFO L264 CegarLoopResult]: At program point L134(line 134) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 1 |old(~waterLevel~0)|))) [2020-07-20 13:02:23,312 INFO L264 CegarLoopResult]: At program point L134-1(line 134) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 1 |old(~waterLevel~0)|))) [2020-07-20 13:02:23,312 INFO L268 CegarLoopResult]: For program point L132(lines 132 139) no Hoare annotation was computed. [2020-07-20 13:02:23,312 INFO L268 CegarLoopResult]: For program point L132-1(lines 132 139) no Hoare annotation was computed. [2020-07-20 13:02:23,312 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-20 13:02:23,312 INFO L268 CegarLoopResult]: For program point Specification2EXIT(lines 75 98) no Hoare annotation was computed. [2020-07-20 13:02:23,313 INFO L268 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-07-20 13:02:23,313 INFO L268 CegarLoopResult]: For program point Specification2ENTRY(lines 75 98) no Hoare annotation was computed. [2020-07-20 13:02:23,313 INFO L268 CegarLoopResult]: For program point L92(line 92) no Hoare annotation was computed. [2020-07-20 13:02:23,313 INFO L268 CegarLoopResult]: For program point Specification2FINAL(lines 75 98) no Hoare annotation was computed. [2020-07-20 13:02:23,313 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-20 13:02:23,313 INFO L268 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-07-20 13:02:23,313 INFO L268 CegarLoopResult]: For program point L89(line 89) no Hoare annotation was computed. [2020-07-20 13:02:23,313 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-20 13:02:23,313 INFO L268 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-07-20 13:02:23,314 INFO L268 CegarLoopResult]: For program point L86(line 86) no Hoare annotation was computed. [2020-07-20 13:02:23,314 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-20 13:02:23,314 INFO L268 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-07-20 13:02:23,314 INFO L268 CegarLoopResult]: For program point L83(line 83) no Hoare annotation was computed. [2020-07-20 13:02:23,314 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-20 13:02:23,314 INFO L268 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-07-20 13:02:23,314 INFO L268 CegarLoopResult]: For program point L80(line 80) no Hoare annotation was computed. [2020-07-20 13:02:23,314 INFO L268 CegarLoopResult]: For program point isPumpRunningEXIT(lines 476 484) no Hoare annotation was computed. [2020-07-20 13:02:23,315 INFO L271 CegarLoopResult]: At program point isPumpRunningENTRY(lines 476 484) the Hoare annotation is: true [2020-07-20 13:02:23,315 INFO L268 CegarLoopResult]: For program point isPumpRunningFINAL(lines 476 484) no Hoare annotation was computed. [2020-07-20 13:02:23,315 INFO L271 CegarLoopResult]: At program point isLowWaterLevelENTRY(lines 540 558) the Hoare annotation is: true [2020-07-20 13:02:23,315 INFO L268 CegarLoopResult]: For program point isLowWaterLevelEXIT(lines 540 558) no Hoare annotation was computed. [2020-07-20 13:02:23,315 INFO L268 CegarLoopResult]: For program point L549(lines 549 553) no Hoare annotation was computed. [2020-07-20 13:02:23,315 INFO L271 CegarLoopResult]: At program point L547(line 547) the Hoare annotation is: true [2020-07-20 13:02:23,315 INFO L268 CegarLoopResult]: For program point L549-2(lines 549 553) no Hoare annotation was computed. [2020-07-20 13:02:23,315 INFO L268 CegarLoopResult]: For program point L547-1(line 547) no Hoare annotation was computed. [2020-07-20 13:02:23,316 INFO L268 CegarLoopResult]: For program point isLowWaterLevelFINAL(lines 540 558) no Hoare annotation was computed. [2020-07-20 13:02:23,316 INFO L268 CegarLoopResult]: For program point L504(lines 504 512) no Hoare annotation was computed. [2020-07-20 13:02:23,316 INFO L268 CegarLoopResult]: For program point L504-2(lines 504 512) no Hoare annotation was computed. [2020-07-20 13:02:23,316 INFO L268 CegarLoopResult]: For program point printPumpFINAL(lines 485 520) no Hoare annotation was computed. [2020-07-20 13:02:23,316 INFO L268 CegarLoopResult]: For program point L492(lines 492 500) no Hoare annotation was computed. [2020-07-20 13:02:23,316 INFO L268 CegarLoopResult]: For program point L492-2(lines 492 500) no Hoare annotation was computed. [2020-07-20 13:02:23,316 INFO L268 CegarLoopResult]: For program point printPumpENTRY(lines 485 520) no Hoare annotation was computed. [2020-07-20 13:02:23,316 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-07-20 13:02:23,317 INFO L268 CegarLoopResult]: For program point printPumpEXIT(lines 485 520) no Hoare annotation was computed. [2020-07-20 13:02:23,317 INFO L268 CegarLoopResult]: For program point L515-1(line 515) no Hoare annotation was computed. [2020-07-20 13:02:23,317 INFO L268 CegarLoopResult]: For program point select_featuresEXIT(lines 946 952) no Hoare annotation was computed. [2020-07-20 13:02:23,317 INFO L271 CegarLoopResult]: At program point select_featuresFINAL(lines 946 952) the Hoare annotation is: true [2020-07-20 13:02:23,317 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setENTRY(lines 566 611) no Hoare annotation was computed. [2020-07-20 13:02:23,317 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setEXIT(lines 566 611) no Hoare annotation was computed. [2020-07-20 13:02:23,317 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setFINAL(lines 566 611) no Hoare annotation was computed. [2020-07-20 13:02:23,317 INFO L268 CegarLoopResult]: For program point L893(lines 893 913) no Hoare annotation was computed. [2020-07-20 13:02:23,317 INFO L268 CegarLoopResult]: For program point L893-1(lines 893 913) no Hoare annotation was computed. [2020-07-20 13:02:23,318 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeFINAL(lines 879 924) no Hoare annotation was computed. [2020-07-20 13:02:23,318 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeENTRY(lines 879 924) no Hoare annotation was computed. [2020-07-20 13:02:23,318 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeEXIT(lines 879 924) no Hoare annotation was computed. [2020-07-20 13:02:23,318 INFO L268 CegarLoopResult]: For program point L899(lines 899 906) no Hoare annotation was computed. [2020-07-20 13:02:23,318 INFO L264 CegarLoopResult]: At program point L113(line 113) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 1 |old(~waterLevel~0)|))) [2020-07-20 13:02:23,318 INFO L264 CegarLoopResult]: At program point runTestENTRY(lines 108 118) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 1 |old(~waterLevel~0)|))) [2020-07-20 13:02:23,318 INFO L268 CegarLoopResult]: For program point runTestEXIT(lines 108 118) no Hoare annotation was computed. [2020-07-20 13:02:23,318 INFO L268 CegarLoopResult]: For program point runTestFINAL(lines 108 118) no Hoare annotation was computed. [2020-07-20 13:02:23,318 INFO L268 CegarLoopResult]: For program point isMethaneAlarmENTRY(lines 465 475) no Hoare annotation was computed. [2020-07-20 13:02:23,318 INFO L268 CegarLoopResult]: For program point isMethaneAlarmEXIT(lines 465 475) no Hoare annotation was computed. [2020-07-20 13:02:23,319 INFO L268 CegarLoopResult]: For program point isMethaneAlarmFINAL(lines 465 475) no Hoare annotation was computed. [2020-07-20 13:02:23,319 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-07-20 13:02:23,319 INFO L268 CegarLoopResult]: For program point L470-1(line 470) no Hoare annotation was computed. [2020-07-20 13:02:23,319 INFO L264 CegarLoopResult]: At program point deactivatePumpENTRY(lines 457 464) the Hoare annotation is: (or (= 0 |old(~pumpRunning~0)|) (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0)) (= ~pumpRunning~0 |old(~pumpRunning~0)|)) [2020-07-20 13:02:23,319 INFO L268 CegarLoopResult]: For program point deactivatePumpEXIT(lines 457 464) no Hoare annotation was computed. [2020-07-20 13:02:23,319 INFO L268 CegarLoopResult]: For program point deactivatePumpFINAL(lines 457 464) no Hoare annotation was computed. [2020-07-20 13:02:23,319 INFO L268 CegarLoopResult]: For program point L235(lines 235 241) no Hoare annotation was computed. [2020-07-20 13:02:23,319 INFO L268 CegarLoopResult]: For program point isHighWaterSensorDryEXIT(lines 231 244) no Hoare annotation was computed. [2020-07-20 13:02:23,319 INFO L271 CegarLoopResult]: At program point isHighWaterSensorDryENTRY(lines 231 244) the Hoare annotation is: true [2020-07-20 13:02:23,319 INFO L268 CegarLoopResult]: For program point isHighWaterSensorDryFINAL(lines 231 244) no Hoare annotation was computed. [2020-07-20 13:02:23,319 INFO L264 CegarLoopResult]: At program point L443(line 443) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0)))) (and (or (not (= 0 ~methAndRunningLastTime~0)) .cse0 .cse1 (= 0 ~pumpRunning~0)) (or (= 0 |old(~pumpRunning~0)|) .cse0 .cse1))) [2020-07-20 13:02:23,320 INFO L268 CegarLoopResult]: For program point L443-1(lines 424 448) no Hoare annotation was computed. [2020-07-20 13:02:23,320 INFO L268 CegarLoopResult]: For program point processEnvironmentEXIT(lines 424 448) no Hoare annotation was computed. [2020-07-20 13:02:23,320 INFO L264 CegarLoopResult]: At program point L438(line 438) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0)))) (and (or (not (= 0 ~methAndRunningLastTime~0)) .cse0 .cse1) (or (= 0 |old(~pumpRunning~0)|) .cse0 .cse1))) [2020-07-20 13:02:23,320 INFO L264 CegarLoopResult]: At program point processEnvironmentENTRY(lines 424 448) the Hoare annotation is: (let ((.cse1 (not (<= 1 ~waterLevel~0))) (.cse2 (not (<= 1 ~systemActive~0))) (.cse0 (= 0 |old(~pumpRunning~0)|))) (and (or .cse0 .cse1 .cse2 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (or (not (= 0 ~methAndRunningLastTime~0)) .cse1 .cse2 (not .cse0) (= 0 ~pumpRunning~0)))) [2020-07-20 13:02:23,320 INFO L264 CegarLoopResult]: At program point L434(line 434) the Hoare annotation is: (let ((.cse1 (not (<= 1 ~waterLevel~0))) (.cse2 (not (<= 1 ~systemActive~0))) (.cse0 (= 0 |old(~pumpRunning~0)|))) (and (or .cse0 .cse1 .cse2 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 processEnvironment_~tmp~4))) (or (not (= 0 ~methAndRunningLastTime~0)) .cse1 .cse2 (not .cse0)))) [2020-07-20 13:02:23,320 INFO L268 CegarLoopResult]: For program point L432(lines 432 440) no Hoare annotation was computed. [2020-07-20 13:02:23,321 INFO L264 CegarLoopResult]: At program point L430(line 430) the Hoare annotation is: (let ((.cse2 (= 0 |old(~pumpRunning~0)|)) (.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0)))) (and (or (not (= 0 ~methAndRunningLastTime~0)) .cse0 .cse1 (not .cse2)) (or .cse2 .cse0 .cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|)))) [2020-07-20 13:02:23,321 INFO L268 CegarLoopResult]: For program point L430-1(line 430) no Hoare annotation was computed. [2020-07-20 13:02:23,321 INFO L268 CegarLoopResult]: For program point L428(lines 428 445) no Hoare annotation was computed. [2020-07-20 13:02:23,321 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__baseEXIT(lines 390 396) no Hoare annotation was computed. [2020-07-20 13:02:23,321 INFO L271 CegarLoopResult]: At program point processEnvironment__wrappee__baseFINAL(lines 390 396) the Hoare annotation is: true [2020-07-20 13:02:23,321 INFO L264 CegarLoopResult]: At program point testENTRY(lines 296 359) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 1 |old(~waterLevel~0)|))) [2020-07-20 13:02:23,321 INFO L264 CegarLoopResult]: At program point L318(line 318) the Hoare annotation is: (let ((.cse0 (= 0 ~pumpRunning~0)) (.cse1 (<= test_~splverifierCounter~0 0))) (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) (not .cse0) .cse1) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~waterLevel~0)|)) (and (= 0 ~methAndRunningLastTime~0) (<= 1 ~waterLevel~0) .cse0 .cse1))) [2020-07-20 13:02:23,322 INFO L264 CegarLoopResult]: At program point L349(lines 306 351) the Hoare annotation is: (let ((.cse0 (= 0 ~pumpRunning~0)) (.cse1 (<= test_~splverifierCounter~0 0))) (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) (not .cse0) .cse1) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~waterLevel~0)|)) (and (= 0 ~methAndRunningLastTime~0) (<= 1 ~waterLevel~0) .cse0 .cse1))) [2020-07-20 13:02:23,322 INFO L268 CegarLoopResult]: For program point L316(lines 316 322) no Hoare annotation was computed. [2020-07-20 13:02:23,322 INFO L268 CegarLoopResult]: For program point L316-1(lines 316 322) no Hoare annotation was computed. [2020-07-20 13:02:23,322 INFO L268 CegarLoopResult]: For program point testFINAL(lines 296 359) no Hoare annotation was computed. [2020-07-20 13:02:23,322 INFO L268 CegarLoopResult]: For program point L308(lines 308 312) no Hoare annotation was computed. [2020-07-20 13:02:23,322 INFO L264 CegarLoopResult]: At program point L352(lines 305 353) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 ~systemActive~0))) [2020-07-20 13:02:23,322 INFO L268 CegarLoopResult]: For program point L342(lines 342 346) no Hoare annotation was computed. [2020-07-20 13:02:23,323 INFO L264 CegarLoopResult]: At program point L342-2(lines 336 347) the Hoare annotation is: (let ((.cse0 (= 0 ~pumpRunning~0)) (.cse1 (<= test_~splverifierCounter~0 0))) (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) (not .cse0) .cse1) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~waterLevel~0)|)) (and (= 0 ~methAndRunningLastTime~0) (<= 1 ~waterLevel~0) .cse0 .cse1))) [2020-07-20 13:02:23,323 INFO L268 CegarLoopResult]: For program point L307(lines 306 351) no Hoare annotation was computed. [2020-07-20 13:02:23,323 INFO L268 CegarLoopResult]: For program point L336(lines 336 347) no Hoare annotation was computed. [2020-07-20 13:02:23,323 INFO L264 CegarLoopResult]: At program point L328(line 328) the Hoare annotation is: (let ((.cse0 (= 0 ~pumpRunning~0)) (.cse1 (<= test_~splverifierCounter~0 0))) (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) (not .cse0) .cse1) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~waterLevel~0)|)) (and (= 0 ~methAndRunningLastTime~0) (<= 1 ~waterLevel~0) .cse0 .cse1))) [2020-07-20 13:02:23,323 INFO L268 CegarLoopResult]: For program point L326(lines 326 332) no Hoare annotation was computed. [2020-07-20 13:02:23,323 INFO L268 CegarLoopResult]: For program point L326-1(lines 326 332) no Hoare annotation was computed. [2020-07-20 13:02:23,323 INFO L268 CegarLoopResult]: For program point testEXIT(lines 296 359) no Hoare annotation was computed. [2020-07-20 13:02:23,323 INFO L268 CegarLoopResult]: For program point __utac__get_this_argENTRY(lines 833 878) no Hoare annotation was computed. [2020-07-20 13:02:23,323 INFO L268 CegarLoopResult]: For program point L853(lines 853 860) no Hoare annotation was computed. [2020-07-20 13:02:23,324 INFO L268 CegarLoopResult]: For program point __utac__get_this_argEXIT(lines 833 878) no Hoare annotation was computed. [2020-07-20 13:02:23,324 INFO L268 CegarLoopResult]: For program point __utac__get_this_argFINAL(lines 833 878) no Hoare annotation was computed. [2020-07-20 13:02:23,324 INFO L268 CegarLoopResult]: For program point L847(lines 847 867) no Hoare annotation was computed. [2020-07-20 13:02:23,324 INFO L268 CegarLoopResult]: For program point L847-1(lines 847 867) no Hoare annotation was computed. [2020-07-20 13:02:23,324 INFO L268 CegarLoopResult]: For program point isLowWaterSensorDryFINAL(lines 245 253) no Hoare annotation was computed. [2020-07-20 13:02:23,324 INFO L271 CegarLoopResult]: At program point isLowWaterSensorDryENTRY(lines 245 253) the Hoare annotation is: true [2020-07-20 13:02:23,324 INFO L268 CegarLoopResult]: For program point isLowWaterSensorDryEXIT(lines 245 253) no Hoare annotation was computed. [2020-07-20 13:02:23,324 INFO L264 CegarLoopResult]: At program point L281(line 281) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (<= 2 ~waterLevel~0)))) (and (or .cse0 (not (<= 1 ~waterLevel~0)) (not (= 0 ~pumpRunning~0))) (or .cse0 (not (= 0 ~methaneLevelCritical~0)) .cse1) (or .cse0 (not (= 0 |old(~methAndRunningLastTime~0)|)) .cse1))) [2020-07-20 13:02:23,324 INFO L268 CegarLoopResult]: For program point L279(lines 279 285) no Hoare annotation was computed. [2020-07-20 13:02:23,325 INFO L268 CegarLoopResult]: For program point L278(lines 278 288) no Hoare annotation was computed. [2020-07-20 13:02:23,325 INFO L264 CegarLoopResult]: At program point L276(line 276) the Hoare annotation is: (let ((.cse2 (= 0 ~pumpRunning~0)) (.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (= 0 ~methaneLevelCritical~0))) (.cse3 (not (<= 2 ~waterLevel~0)))) (and (or .cse0 (not (<= 1 ~waterLevel~0)) .cse1 (not .cse2)) (or .cse0 (= 0 ~methAndRunningLastTime~0) (not (= 0 |old(~methAndRunningLastTime~0)|)) .cse2 .cse3) (or .cse0 .cse1 .cse3))) [2020-07-20 13:02:23,325 INFO L268 CegarLoopResult]: For program point L276-1(line 276) no Hoare annotation was computed. [2020-07-20 13:02:23,325 INFO L268 CegarLoopResult]: For program point L274(lines 274 291) no Hoare annotation was computed. [2020-07-20 13:02:23,325 INFO L268 CegarLoopResult]: For program point L274-1(lines 266 294) no Hoare annotation was computed. [2020-07-20 13:02:23,325 INFO L264 CegarLoopResult]: At program point __utac_acc__Specification2_spec__2ENTRY(lines 266 294) the Hoare annotation is: (or (not (<= 1 ~systemActive~0)) (= 0 ~methAndRunningLastTime~0) (not (= 0 |old(~methAndRunningLastTime~0)|)) (= 0 ~pumpRunning~0) (not (<= 2 ~waterLevel~0))) [2020-07-20 13:02:23,325 INFO L264 CegarLoopResult]: At program point L272(line 272) the Hoare annotation is: (or (not (<= 1 ~systemActive~0)) (= 0 ~methAndRunningLastTime~0) (not (= 0 |old(~methAndRunningLastTime~0)|)) (= 0 ~pumpRunning~0) (not (<= 2 ~waterLevel~0))) [2020-07-20 13:02:23,326 INFO L268 CegarLoopResult]: For program point L272-1(line 272) no Hoare annotation was computed. [2020-07-20 13:02:23,326 INFO L268 CegarLoopResult]: For program point __utac_acc__Specification2_spec__2EXIT(lines 266 294) no Hoare annotation was computed. [2020-07-20 13:02:23,326 INFO L264 CegarLoopResult]: At program point __utac_acc__Specification2_spec__1ENTRY(lines 258 265) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0)) (= 0 ~methAndRunningLastTime~0) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 ~methaneLevelCritical~0)) (not (<= ~waterLevel~0 1)) (not (= 0 ~pumpRunning~0))) [2020-07-20 13:02:23,326 INFO L268 CegarLoopResult]: For program point __utac_acc__Specification2_spec__1FINAL(lines 258 265) no Hoare annotation was computed. [2020-07-20 13:02:23,326 INFO L268 CegarLoopResult]: For program point __utac_acc__Specification2_spec__1EXIT(lines 258 265) no Hoare annotation was computed. [2020-07-20 13:02:23,326 INFO L268 CegarLoopResult]: For program point L207(lines 207 215) no Hoare annotation was computed. [2020-07-20 13:02:23,326 INFO L268 CegarLoopResult]: For program point L207-2(lines 207 215) no Hoare annotation was computed. [2020-07-20 13:02:23,326 INFO L268 CegarLoopResult]: For program point printEnvironmentEXIT(lines 199 221) no Hoare annotation was computed. [2020-07-20 13:02:23,326 INFO L268 CegarLoopResult]: For program point printEnvironmentENTRY(lines 199 221) no Hoare annotation was computed. [2020-07-20 13:02:23,327 INFO L268 CegarLoopResult]: For program point printEnvironmentFINAL(lines 199 221) no Hoare annotation was computed. [2020-07-20 13:02:23,327 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtENTRY(lines 730 832) no Hoare annotation was computed. [2020-07-20 13:02:23,327 INFO L268 CegarLoopResult]: For program point L795(line 795) no Hoare annotation was computed. [2020-07-20 13:02:23,327 INFO L268 CegarLoopResult]: For program point L795-1(line 795) no Hoare annotation was computed. [2020-07-20 13:02:23,327 INFO L268 CegarLoopResult]: For program point L754(lines 754 758) no Hoare annotation was computed. [2020-07-20 13:02:23,327 INFO L268 CegarLoopResult]: For program point L818(lines 818 829) no Hoare annotation was computed. [2020-07-20 13:02:23,327 INFO L268 CegarLoopResult]: For program point L781(lines 781 785) no Hoare annotation was computed. [2020-07-20 13:02:23,327 INFO L268 CegarLoopResult]: For program point L779-2(lines 779 799) no Hoare annotation was computed. [2020-07-20 13:02:23,327 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtFINAL(lines 730 832) no Hoare annotation was computed. [2020-07-20 13:02:23,327 INFO L268 CegarLoopResult]: For program point L800(lines 778 801) no Hoare annotation was computed. [2020-07-20 13:02:23,328 INFO L268 CegarLoopResult]: For program point L759(lines 759 775) no Hoare annotation was computed. [2020-07-20 13:02:23,328 INFO L268 CegarLoopResult]: For program point L819(lines 819 826) no Hoare annotation was computed. [2020-07-20 13:02:23,328 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtEXIT(lines 730 832) no Hoare annotation was computed. [2020-07-20 13:02:23,328 INFO L268 CegarLoopResult]: For program point L780(lines 779 799) no Hoare annotation was computed. [2020-07-20 13:02:23,328 INFO L268 CegarLoopResult]: For program point L811(line 811) no Hoare annotation was computed. [2020-07-20 13:02:23,328 INFO L268 CegarLoopResult]: For program point L811-1(line 811) no Hoare annotation was computed. [2020-07-20 13:02:23,328 INFO L268 CegarLoopResult]: For program point L776(lines 776 817) no Hoare annotation was computed. [2020-07-20 13:02:23,328 INFO L268 CegarLoopResult]: For program point select_oneENTRY(lines 936 945) no Hoare annotation was computed. [2020-07-20 13:02:23,329 INFO L268 CegarLoopResult]: For program point select_oneFINAL(lines 936 945) no Hoare annotation was computed. [2020-07-20 13:02:23,329 INFO L268 CegarLoopResult]: For program point select_oneEXIT(lines 936 945) no Hoare annotation was computed. [2020-07-20 13:02:23,329 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 13:02:23,329 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= |old(~waterLevel~0)| ~waterLevel~0)) [2020-07-20 13:02:23,329 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 13:02:23,329 INFO L268 CegarLoopResult]: For program point activatePumpFINAL(lines 449 456) no Hoare annotation was computed. [2020-07-20 13:02:23,329 INFO L268 CegarLoopResult]: For program point activatePumpEXIT(lines 449 456) no Hoare annotation was computed. [2020-07-20 13:02:23,329 INFO L264 CegarLoopResult]: At program point activatePumpENTRY(lines 449 456) the Hoare annotation is: (or (not (= 0 ~methAndRunningLastTime~0)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0) (not (<= 2 ~waterLevel~0))) [2020-07-20 13:02:23,330 INFO L268 CegarLoopResult]: For program point getWaterLevelENTRY(lines 222 230) no Hoare annotation was computed. [2020-07-20 13:02:23,330 INFO L268 CegarLoopResult]: For program point getWaterLevelFINAL(lines 222 230) no Hoare annotation was computed. [2020-07-20 13:02:23,330 INFO L268 CegarLoopResult]: For program point getWaterLevelEXIT(lines 222 230) no Hoare annotation was computed. [2020-07-20 13:02:23,330 INFO L268 CegarLoopResult]: For program point isHighWaterLevelEXIT(lines 521 539) no Hoare annotation was computed. [2020-07-20 13:02:23,330 INFO L271 CegarLoopResult]: At program point L528(line 528) the Hoare annotation is: true [2020-07-20 13:02:23,330 INFO L268 CegarLoopResult]: For program point L530-2(lines 530 534) no Hoare annotation was computed. [2020-07-20 13:02:23,330 INFO L268 CegarLoopResult]: For program point L528-1(line 528) no Hoare annotation was computed. [2020-07-20 13:02:23,330 INFO L271 CegarLoopResult]: At program point isHighWaterLevelENTRY(lines 521 539) the Hoare annotation is: true [2020-07-20 13:02:23,330 INFO L268 CegarLoopResult]: For program point isHighWaterLevelFINAL(lines 521 539) no Hoare annotation was computed. [2020-07-20 13:02:23,330 INFO L268 CegarLoopResult]: For program point L530(lines 530 534) no Hoare annotation was computed. [2020-07-20 13:02:23,331 INFO L264 CegarLoopResult]: At program point changeMethaneLevelENTRY(lines 178 189) the Hoare annotation is: (let ((.cse0 (not (= 0 ~methAndRunningLastTime~0))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse2 (= 0 ~methaneLevelCritical~0)) (.cse3 (not (= |old(~methaneLevelCritical~0)| 0)))) (and (or .cse0 .cse1 .cse2 .cse3 (not (<= 2 ~waterLevel~0))) (or .cse0 (not (<= 1 ~waterLevel~0)) .cse1 .cse2 .cse3 (not (= 0 ~pumpRunning~0))))) [2020-07-20 13:02:23,331 INFO L268 CegarLoopResult]: For program point changeMethaneLevelEXIT(lines 178 189) no Hoare annotation was computed. [2020-07-20 13:02:23,331 INFO L268 CegarLoopResult]: For program point L182-1(lines 178 189) no Hoare annotation was computed. [2020-07-20 13:02:23,331 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2020-07-20 13:02:23,331 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intENTRY(line -1) no Hoare annotation was computed. [2020-07-20 13:02:23,331 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intFINAL(line -1) no Hoare annotation was computed. [2020-07-20 13:02:23,331 INFO L264 CegarLoopResult]: At program point L379(line 379) the Hoare annotation is: (let ((.cse6 (= 0 |old(~pumpRunning~0)|))) (let ((.cse1 (= 0 ~methAndRunningLastTime~0)) (.cse2 (not (= 0 |old(~methAndRunningLastTime~0)|))) (.cse4 (not .cse6)) (.cse5 (not (<= 1 |old(~waterLevel~0)|))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse3 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse2 .cse4 (and .cse1 (= 0 ~pumpRunning~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) .cse5) (or (not (<= |old(~waterLevel~0)| 1)) .cse0 .cse2 .cse4 (<= ~waterLevel~0 1) .cse5) (or .cse6 .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1))) .cse3)))) [2020-07-20 13:02:23,332 INFO L264 CegarLoopResult]: At program point L377(lines 377 383) the Hoare annotation is: (let ((.cse0 (= 0 |old(~pumpRunning~0)|))) (let ((.cse1 (not (<= 1 ~systemActive~0))) (.cse3 (not (= 0 |old(~methAndRunningLastTime~0)|))) (.cse4 (not .cse0)) (.cse2 (= 0 ~pumpRunning~0)) (.cse5 (not (<= 1 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 (and (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse2) (not (<= 2 |old(~waterLevel~0)|))) (or .cse1 .cse3 .cse4 (and (= 0 ~methAndRunningLastTime~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) .cse5) (or (not (<= |old(~waterLevel~0)| 1)) .cse1 .cse3 .cse4 (and .cse2 (<= ~waterLevel~0 1)) .cse5)))) [2020-07-20 13:02:23,332 INFO L264 CegarLoopResult]: At program point L372(line 372) the Hoare annotation is: (let ((.cse2 (not (<= 2 |old(~waterLevel~0)|))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (= 0 |old(~methAndRunningLastTime~0)|))) (.cse3 (= 0 |old(~pumpRunning~0)|))) (and (or .cse0 (= 0 ~methAndRunningLastTime~0) .cse1 .cse2) (or .cse3 .cse0 .cse2 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse0 .cse1 (not .cse3) (not (<= 1 |old(~waterLevel~0)|))))) [2020-07-20 13:02:23,332 INFO L268 CegarLoopResult]: For program point L370(lines 369 388) no Hoare annotation was computed. [2020-07-20 13:02:23,332 INFO L264 CegarLoopResult]: At program point timeShiftENTRY(lines 366 389) the Hoare annotation is: (let ((.cse7 (= 0 |old(~pumpRunning~0)|))) (let ((.cse1 (= 0 ~methAndRunningLastTime~0)) (.cse2 (not (= 0 |old(~methAndRunningLastTime~0)|))) (.cse4 (not .cse7)) (.cse6 (not (<= 1 |old(~waterLevel~0)|))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse3 (not (<= 2 |old(~waterLevel~0)|))) (.cse5 (<= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse2 .cse4 (and .cse1 (= 0 ~pumpRunning~0) .cse5) .cse6) (or (not (<= |old(~waterLevel~0)| 1)) .cse0 .cse2 .cse4 (<= ~waterLevel~0 1) .cse6) (or .cse7 .cse0 .cse3 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse5))))) [2020-07-20 13:02:23,332 INFO L268 CegarLoopResult]: For program point timeShiftEXIT(lines 366 389) no Hoare annotation was computed. [2020-07-20 13:02:23,333 INFO L268 CegarLoopResult]: For program point timeShiftFINAL(lines 366 389) no Hoare annotation was computed. [2020-07-20 13:02:23,333 INFO L268 CegarLoopResult]: For program point cleanupEXIT(lines 42 71) no Hoare annotation was computed. [2020-07-20 13:02:23,333 INFO L268 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-07-20 13:02:23,333 INFO L271 CegarLoopResult]: At program point cleanupENTRY(lines 42 71) the Hoare annotation is: true [2020-07-20 13:02:23,333 INFO L268 CegarLoopResult]: For program point L56(lines 56 60) no Hoare annotation was computed. [2020-07-20 13:02:23,333 INFO L271 CegarLoopResult]: At program point L56-1(lines 56 60) the Hoare annotation is: true [2020-07-20 13:02:23,333 INFO L268 CegarLoopResult]: For program point L53(line 53) no Hoare annotation was computed. [2020-07-20 13:02:23,333 INFO L271 CegarLoopResult]: At program point L52-2(lines 52 66) the Hoare annotation is: true [2020-07-20 13:02:23,333 INFO L271 CegarLoopResult]: At program point L48(line 48) the Hoare annotation is: true [2020-07-20 13:02:23,333 INFO L268 CegarLoopResult]: For program point L48-1(line 48) no Hoare annotation was computed. [2020-07-20 13:02:23,334 INFO L271 CegarLoopResult]: At program point L67(lines 42 71) the Hoare annotation is: true [2020-07-20 13:02:23,334 INFO L271 CegarLoopResult]: At program point isMethaneLevelCriticalENTRY(lines 190 198) the Hoare annotation is: true [2020-07-20 13:02:23,334 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalFINAL(lines 190 198) no Hoare annotation was computed. [2020-07-20 13:02:23,334 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalEXIT(lines 190 198) no Hoare annotation was computed. [2020-07-20 13:02:23,334 INFO L264 CegarLoopResult]: At program point lowerWaterLevelENTRY(lines 154 165) the Hoare annotation is: (or (not (<= 1 ~systemActive~0)) (= 0 ~pumpRunning~0) (not (<= 2 |old(~waterLevel~0)|)) (<= |old(~waterLevel~0)| ~waterLevel~0)) [2020-07-20 13:02:23,334 INFO L268 CegarLoopResult]: For program point L158-1(lines 154 165) no Hoare annotation was computed. [2020-07-20 13:02:23,334 INFO L268 CegarLoopResult]: For program point lowerWaterLevelEXIT(lines 154 165) no Hoare annotation was computed. [2020-07-20 13:02:23,334 INFO L268 CegarLoopResult]: For program point setupEXIT(lines 99 105) no Hoare annotation was computed. [2020-07-20 13:02:23,335 INFO L271 CegarLoopResult]: At program point setupFINAL(lines 99 105) the Hoare annotation is: true [2020-07-20 13:02:23,335 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 13:02:23,335 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)) [2020-07-20 13:02:23,335 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 13:02:23,335 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 13:02:23,335 INFO L264 CegarLoopResult]: At program point L417(line 417) the Hoare annotation is: (or (not (= 0 ~methAndRunningLastTime~0)) (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|))) [2020-07-20 13:02:23,335 INFO L264 CegarLoopResult]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 398 422) the Hoare annotation is: (or (not (= 0 ~methAndRunningLastTime~0)) (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0)) [2020-07-20 13:02:23,335 INFO L268 CegarLoopResult]: For program point L417-1(lines 398 422) no Hoare annotation was computed. [2020-07-20 13:02:23,336 INFO L264 CegarLoopResult]: At program point L412(line 412) the Hoare annotation is: (or (not (= 0 ~methAndRunningLastTime~0)) (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 processEnvironment__wrappee__highWaterSensor_~tmp~3) (= 0 ~pumpRunning~0))) [2020-07-20 13:02:23,336 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 398 422) no Hoare annotation was computed. [2020-07-20 13:02:23,336 INFO L264 CegarLoopResult]: At program point L408(line 408) the Hoare annotation is: (or (not (= 0 ~methAndRunningLastTime~0)) (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0)) (and (<= 2 ~waterLevel~0) (= 0 ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|))) [2020-07-20 13:02:23,336 INFO L268 CegarLoopResult]: For program point L406(lines 406 414) no Hoare annotation was computed. [2020-07-20 13:02:23,336 INFO L264 CegarLoopResult]: At program point L404(line 404) the Hoare annotation is: (or (not (= 0 ~methAndRunningLastTime~0)) (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0)) [2020-07-20 13:02:23,336 INFO L268 CegarLoopResult]: For program point L404-1(line 404) no Hoare annotation was computed. [2020-07-20 13:02:23,336 INFO L268 CegarLoopResult]: For program point L402(lines 402 419) no Hoare annotation was computed. [2020-07-20 13:02:23,336 INFO L268 CegarLoopResult]: For program point waterRiseEXIT(lines 166 177) no Hoare annotation was computed. [2020-07-20 13:02:23,336 INFO L268 CegarLoopResult]: For program point L170-1(lines 166 177) no Hoare annotation was computed. [2020-07-20 13:02:23,337 INFO L264 CegarLoopResult]: At program point waterRiseENTRY(lines 166 177) the Hoare annotation is: (let ((.cse5 (= 0 ~pumpRunning~0))) (let ((.cse0 (not (= 0 ~methAndRunningLastTime~0))) (.cse2 (not .cse5)) (.cse3 (not (<= 1 |old(~waterLevel~0)|))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse4 (<= |old(~waterLevel~0)| ~waterLevel~0))) (and (or (not (<= |old(~waterLevel~0)| 1)) .cse0 .cse1 (<= ~waterLevel~0 1) .cse2 .cse3) (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse1 .cse5 (not (<= 2 |old(~waterLevel~0)|)) .cse4)))) [2020-07-20 13:02:23,337 INFO L268 CegarLoopResult]: For program point __automaton_failFINAL(lines 926 933) no Hoare annotation was computed. [2020-07-20 13:02:23,337 INFO L268 CegarLoopResult]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 930) no Hoare annotation was computed. [2020-07-20 13:02:23,337 INFO L271 CegarLoopResult]: At program point __automaton_failENTRY(lines 926 933) the Hoare annotation is: true [2020-07-20 13:02:23,337 INFO L268 CegarLoopResult]: For program point __automaton_failEXIT(lines 926 933) no Hoare annotation was computed. [2020-07-20 13:02:23,355 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 01:02:23 BoogieIcfgContainer [2020-07-20 13:02:23,356 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 13:02:23,357 INFO L168 Benchmark]: Toolchain (without parser) took 20092.69 ms. Allocated memory was 138.9 MB in the beginning and 416.8 MB in the end (delta: 277.9 MB). Free memory was 100.7 MB in the beginning and 335.5 MB in the end (delta: -234.8 MB). Peak memory consumption was 291.8 MB. Max. memory is 7.1 GB. [2020-07-20 13:02:23,358 INFO L168 Benchmark]: CDTParser took 0.55 ms. Allocated memory is still 138.9 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-20 13:02:23,359 INFO L168 Benchmark]: CACSL2BoogieTranslator took 629.81 ms. Allocated memory was 138.9 MB in the beginning and 203.9 MB in the end (delta: 65.0 MB). Free memory was 100.2 MB in the beginning and 172.1 MB in the end (delta: -71.9 MB). Peak memory consumption was 27.7 MB. Max. memory is 7.1 GB. [2020-07-20 13:02:23,360 INFO L168 Benchmark]: Boogie Preprocessor took 87.17 ms. Allocated memory is still 203.9 MB. Free memory was 172.1 MB in the beginning and 167.5 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. [2020-07-20 13:02:23,360 INFO L168 Benchmark]: RCFGBuilder took 1142.33 ms. Allocated memory was 203.9 MB in the beginning and 237.0 MB in the end (delta: 33.0 MB). Free memory was 167.5 MB in the beginning and 195.1 MB in the end (delta: -27.5 MB). Peak memory consumption was 82.5 MB. Max. memory is 7.1 GB. [2020-07-20 13:02:23,361 INFO L168 Benchmark]: TraceAbstraction took 18227.03 ms. Allocated memory was 237.0 MB in the beginning and 416.8 MB in the end (delta: 179.8 MB). Free memory was 195.1 MB in the beginning and 335.5 MB in the end (delta: -140.4 MB). Peak memory consumption was 288.1 MB. Max. memory is 7.1 GB. [2020-07-20 13:02:23,364 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.55 ms. Allocated memory is still 138.9 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 629.81 ms. Allocated memory was 138.9 MB in the beginning and 203.9 MB in the end (delta: 65.0 MB). Free memory was 100.2 MB in the beginning and 172.1 MB in the end (delta: -71.9 MB). Peak memory consumption was 27.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 87.17 ms. Allocated memory is still 203.9 MB. Free memory was 172.1 MB in the beginning and 167.5 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1142.33 ms. Allocated memory was 203.9 MB in the beginning and 237.0 MB in the end (delta: 33.0 MB). Free memory was 167.5 MB in the beginning and 195.1 MB in the end (delta: -27.5 MB). Peak memory consumption was 82.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 18227.03 ms. Allocated memory was 237.0 MB in the beginning and 416.8 MB in the end (delta: 179.8 MB). Free memory was 195.1 MB in the beginning and 335.5 MB in the end (delta: -140.4 MB). Peak memory consumption was 288.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 930]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 305]: Loop Invariant Derived loop invariant: ((((!(\old(waterLevel) <= 1) || !(0 == \old(methAndRunningLastTime))) || !(0 == \old(pumpRunning))) || !(\old(methaneLevelCritical) == 0)) || !(1 <= \old(waterLevel))) || !(1 <= systemActive) - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 306]: Loop Invariant Derived loop invariant: ((((((!(\old(waterLevel) <= 1) || !(1 <= systemActive)) || !(0 == \old(methAndRunningLastTime))) || !(0 == \old(pumpRunning))) || ((2 <= waterLevel && !(0 == pumpRunning)) && splverifierCounter <= 0)) || !(\old(methaneLevelCritical) == 0)) || !(1 <= \old(waterLevel))) || (((0 == methAndRunningLastTime && 1 <= waterLevel) && 0 == pumpRunning) && splverifierCounter <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 240 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 13.7s, OverallIterations: 13, TraceHistogramMax: 2, AutomataDifference: 4.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2068 SDtfs, 1131 SDslu, 3293 SDs, 0 SdLazy, 1854 SolverSat, 428 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1218 GetRequests, 1165 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1550occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 13 MinimizatonAttempts, 644 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 60 LocationsWithAnnotation, 2319 PreInvPairs, 2395 NumberOfFragments, 1516 HoareAnnotationTreeSize, 2319 FomulaSimplifications, 7437 FormulaSimplificationTreeSizeReduction, 1.1s HoareSimplificationTime, 60 FomulaSimplificationsInter, 8646 FormulaSimplificationTreeSizeReductionInter, 3.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 4.0s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 1210 NumberOfCodeBlocks, 1148 NumberOfCodeBlocksAsserted, 48 NumberOfCheckSat, 1197 ConstructedInterpolants, 0 QuantifiedInterpolants, 214139 SizeOfPredicates, 27 NumberOfNonLiveVariables, 9814 ConjunctsInSsa, 114 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 105/105 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...