/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_VARIABLES --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product57.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 15:40:00,068 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 15:40:00,070 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 15:40:00,088 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 15:40:00,088 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 15:40:00,090 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 15:40:00,092 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 15:40:00,102 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 15:40:00,107 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 15:40:00,109 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 15:40:00,113 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 15:40:00,114 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 15:40:00,114 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 15:40:00,118 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 15:40:00,119 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 15:40:00,120 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 15:40:00,120 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 15:40:00,121 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 15:40:00,122 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 15:40:00,124 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 15:40:00,125 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 15:40:00,126 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 15:40:00,127 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 15:40:00,128 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 15:40:00,130 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-21 15:40:00,130 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-21 15:40:00,130 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-21 15:40:00,131 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-21 15:40:00,132 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-21 15:40:00,132 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-21 15:40:00,133 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-21 15:40:00,133 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-21 15:40:00,134 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-21 15:40:00,135 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-21 15:40:00,136 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-21 15:40:00,136 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-21 15:40:00,137 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-21 15:40:00,137 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-21 15:40:00,137 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 15:40:00,138 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 15:40:00,139 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 15:40:00,140 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 15:40:00,154 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 15:40:00,154 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 15:40:00,155 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 15:40:00,156 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 15:40:00,156 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 15:40:00,156 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 15:40:00,156 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 15:40:00,157 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 15:40:00,157 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 15:40:00,157 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 15:40:00,157 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 15:40:00,158 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 15:40:00,158 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 15:40:00,158 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 15:40:00,158 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 15:40:00,158 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 15:40:00,159 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 15:40:00,159 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 15:40:00,159 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 15:40:00,159 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 15:40:00,160 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 15:40:00,160 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 15:40:00,160 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 15:40:00,160 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 15:40:00,160 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 15:40:00,161 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 15:40:00,161 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:00,161 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 15:40:00,161 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 15:40:00,161 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_VARIABLES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 2 [2020-07-21 15:40:00,458 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 15:40:00,471 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 15:40:00,475 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 15:40:00,476 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 15:40:00,476 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 15:40:00,477 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product57.cil.c [2020-07-21 15:40:00,537 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e4dd35ee/104680719aa147ca825906758b644450/FLAG971ec3194 [2020-07-21 15:40:01,054 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 15:40:01,054 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product57.cil.c [2020-07-21 15:40:01,074 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e4dd35ee/104680719aa147ca825906758b644450/FLAG971ec3194 [2020-07-21 15:40:01,368 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e4dd35ee/104680719aa147ca825906758b644450 [2020-07-21 15:40:01,378 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 15:40:01,382 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 15:40:01,384 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 15:40:01,384 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 15:40:01,392 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 15:40:01,393 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 03:40:01" (1/1) ... [2020-07-21 15:40:01,396 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77078b52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:40:01, skipping insertion in model container [2020-07-21 15:40:01,397 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 03:40:01" (1/1) ... [2020-07-21 15:40:01,406 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 15:40:01,477 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 15:40:01,952 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 15:40:01,967 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 15:40:02,045 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 15:40:02,079 INFO L208 MainTranslator]: Completed translation [2020-07-21 15:40:02,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:40:02 WrapperNode [2020-07-21 15:40:02,080 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 15:40:02,080 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 15:40:02,081 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 15:40:02,081 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 15:40:02,094 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:40:02" (1/1) ... [2020-07-21 15:40:02,094 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:40:02" (1/1) ... [2020-07-21 15:40:02,113 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:40:02" (1/1) ... [2020-07-21 15:40:02,114 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:40:02" (1/1) ... [2020-07-21 15:40:02,142 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:40:02" (1/1) ... [2020-07-21 15:40:02,153 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:40:02" (1/1) ... [2020-07-21 15:40:02,159 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:40:02" (1/1) ... [2020-07-21 15:40:02,167 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 15:40:02,168 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 15:40:02,168 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 15:40:02,168 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 15:40:02,169 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:40:02" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 15:40:02,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 15:40:02,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 15:40:02,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-21 15:40:02,244 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-07-21 15:40:02,244 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-21 15:40:02,244 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-21 15:40:02,244 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-21 15:40:02,245 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-21 15:40:02,245 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-21 15:40:02,245 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-21 15:40:02,245 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-21 15:40:02,245 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-21 15:40:02,245 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-21 15:40:02,246 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-21 15:40:02,246 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-21 15:40:02,246 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-21 15:40:02,246 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-21 15:40:02,246 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-07-21 15:40:02,247 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-21 15:40:02,247 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-07-21 15:40:02,247 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-21 15:40:02,247 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-21 15:40:02,247 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-21 15:40:02,247 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-21 15:40:02,248 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-21 15:40:02,248 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-21 15:40:02,248 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-07-21 15:40:02,248 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-21 15:40:02,248 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-21 15:40:02,248 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-21 15:40:02,249 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-21 15:40:02,249 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 15:40:02,249 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-21 15:40:02,249 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-21 15:40:02,249 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-21 15:40:02,250 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-21 15:40:02,250 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-21 15:40:02,250 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-21 15:40:02,250 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-21 15:40:02,250 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-07-21 15:40:02,250 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-21 15:40:02,250 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 15:40:02,251 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 15:40:02,251 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-21 15:40:02,251 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-21 15:40:02,251 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-21 15:40:02,251 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-21 15:40:02,251 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-07-21 15:40:02,252 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-21 15:40:02,252 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-21 15:40:02,252 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-21 15:40:02,252 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-21 15:40:02,252 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-21 15:40:02,252 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-21 15:40:02,253 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-21 15:40:02,253 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-21 15:40:02,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-21 15:40:02,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-21 15:40:02,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-21 15:40:02,254 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-21 15:40:02,254 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-21 15:40:02,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-21 15:40:02,254 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-21 15:40:02,255 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-21 15:40:02,255 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-21 15:40:02,255 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-21 15:40:02,255 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-21 15:40:02,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-21 15:40:02,256 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-21 15:40:02,256 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-21 15:40:02,256 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-21 15:40:02,256 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-21 15:40:02,256 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-21 15:40:02,256 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-21 15:40:02,257 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-21 15:40:02,257 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-21 15:40:02,257 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-21 15:40:02,257 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-07-21 15:40:02,257 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-21 15:40:02,257 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-21 15:40:02,258 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-21 15:40:02,258 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-21 15:40:02,258 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-21 15:40:02,258 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-21 15:40:02,258 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-07-21 15:40:02,259 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-07-21 15:40:02,259 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-07-21 15:40:02,259 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-21 15:40:02,259 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-21 15:40:02,259 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-21 15:40:02,259 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-21 15:40:02,260 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 15:40:02,260 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-21 15:40:02,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 15:40:02,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-21 15:40:02,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 15:40:03,459 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 15:40:03,459 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-21 15:40:03,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 03:40:03 BoogieIcfgContainer [2020-07-21 15:40:03,465 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 15:40:03,467 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 15:40:03,467 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 15:40:03,470 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 15:40:03,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 03:40:01" (1/3) ... [2020-07-21 15:40:03,472 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71e6326 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 03:40:03, skipping insertion in model container [2020-07-21 15:40:03,472 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:40:02" (2/3) ... [2020-07-21 15:40:03,473 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71e6326 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 03:40:03, skipping insertion in model container [2020-07-21 15:40:03,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 03:40:03" (3/3) ... [2020-07-21 15:40:03,475 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product57.cil.c [2020-07-21 15:40:03,485 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 15:40:03,494 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 15:40:03,509 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 15:40:03,533 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 15:40:03,534 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 15:40:03,534 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 15:40:03,534 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 15:40:03,534 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 15:40:03,535 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 15:40:03,535 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 15:40:03,535 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 15:40:03,558 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states. [2020-07-21 15:40:03,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-21 15:40:03,568 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:40:03,569 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 15:40:03,569 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:40:03,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:40:03,576 INFO L82 PathProgramCache]: Analyzing trace with hash 135364863, now seen corresponding path program 1 times [2020-07-21 15:40:03,585 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:40:03,586 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1361921213] [2020-07-21 15:40:03,586 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:04,077 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:40:04,078 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:40:04,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 636 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-21 15:40:04,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:40:04,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 15:40:04,125 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:40:04,126 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1361921213] [2020-07-21 15:40:04,127 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:40:04,127 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-21 15:40:04,129 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463552496] [2020-07-21 15:40:04,134 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-21 15:40:04,135 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:40:04,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-21 15:40:04,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 15:40:04,156 INFO L87 Difference]: Start difference. First operand 183 states. Second operand 2 states. [2020-07-21 15:40:04,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:40:04,218 INFO L93 Difference]: Finished difference Result 280 states and 345 transitions. [2020-07-21 15:40:04,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-21 15:40:04,221 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2020-07-21 15:40:04,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:40:04,240 INFO L225 Difference]: With dead ends: 280 [2020-07-21 15:40:04,240 INFO L226 Difference]: Without dead ends: 140 [2020-07-21 15:40:04,248 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 15:40:04,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-07-21 15:40:04,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2020-07-21 15:40:04,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-07-21 15:40:04,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 164 transitions. [2020-07-21 15:40:04,323 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 164 transitions. Word has length 46 [2020-07-21 15:40:04,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:40:04,324 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 164 transitions. [2020-07-21 15:40:04,324 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-21 15:40:04,325 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 164 transitions. [2020-07-21 15:40:04,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-07-21 15:40:04,331 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:40:04,331 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 15:40:04,538 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:04,538 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:40:04,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:40:04,539 INFO L82 PathProgramCache]: Analyzing trace with hash 327228860, now seen corresponding path program 1 times [2020-07-21 15:40:04,540 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:40:04,541 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1177538619] [2020-07-21 15:40:04,542 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:04,879 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:40:04,880 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:40:04,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 637 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-21 15:40:04,888 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:40:04,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 15:40:04,923 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:40:04,923 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1177538619] [2020-07-21 15:40:04,924 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:40:04,924 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 15:40:04,924 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230525301] [2020-07-21 15:40:04,926 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 15:40:04,926 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:40:04,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 15:40:04,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 15:40:04,927 INFO L87 Difference]: Start difference. First operand 140 states and 164 transitions. Second operand 3 states. [2020-07-21 15:40:04,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:40:04,952 INFO L93 Difference]: Finished difference Result 256 states and 307 transitions. [2020-07-21 15:40:04,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 15:40:04,953 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2020-07-21 15:40:04,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:40:04,956 INFO L225 Difference]: With dead ends: 256 [2020-07-21 15:40:04,956 INFO L226 Difference]: Without dead ends: 140 [2020-07-21 15:40:04,958 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 15:40:04,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-07-21 15:40:04,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2020-07-21 15:40:04,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-07-21 15:40:04,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 163 transitions. [2020-07-21 15:40:04,974 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 163 transitions. Word has length 47 [2020-07-21 15:40:04,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:40:04,975 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 163 transitions. [2020-07-21 15:40:04,975 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 15:40:04,975 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 163 transitions. [2020-07-21 15:40:04,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-07-21 15:40:04,978 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:40:04,978 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] [2020-07-21 15:40:05,193 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:05,194 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:40:05,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:40:05,196 INFO L82 PathProgramCache]: Analyzing trace with hash -2087429586, now seen corresponding path program 1 times [2020-07-21 15:40:05,196 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:40:05,197 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1268227485] [2020-07-21 15:40:05,197 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:05,524 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:40:05,524 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:40:05,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 660 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-21 15:40:05,533 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:40:05,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 15:40:05,555 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:40:05,555 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1268227485] [2020-07-21 15:40:05,555 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:40:05,555 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 15:40:05,556 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415377522] [2020-07-21 15:40:05,556 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 15:40:05,557 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:40:05,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 15:40:05,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 15:40:05,558 INFO L87 Difference]: Start difference. First operand 140 states and 163 transitions. Second operand 3 states. [2020-07-21 15:40:05,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:40:05,575 INFO L93 Difference]: Finished difference Result 229 states and 265 transitions. [2020-07-21 15:40:05,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 15:40:05,576 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2020-07-21 15:40:05,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:40:05,579 INFO L225 Difference]: With dead ends: 229 [2020-07-21 15:40:05,579 INFO L226 Difference]: Without dead ends: 131 [2020-07-21 15:40:05,581 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 15:40:05,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-07-21 15:40:05,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2020-07-21 15:40:05,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2020-07-21 15:40:05,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 151 transitions. [2020-07-21 15:40:05,595 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 151 transitions. Word has length 60 [2020-07-21 15:40:05,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:40:05,595 INFO L479 AbstractCegarLoop]: Abstraction has 131 states and 151 transitions. [2020-07-21 15:40:05,595 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 15:40:05,596 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 151 transitions. [2020-07-21 15:40:05,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-07-21 15:40:05,598 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:40:05,599 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 15:40:05,811 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:05,812 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:40:05,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:40:05,813 INFO L82 PathProgramCache]: Analyzing trace with hash 1468702982, now seen corresponding path program 1 times [2020-07-21 15:40:05,813 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:40:05,813 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [5120534] [2020-07-21 15:40:05,813 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:06,117 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:40:06,118 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:40:06,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 667 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-21 15:40:06,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:40:06,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 15:40:06,181 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:40:06,181 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [5120534] [2020-07-21 15:40:06,181 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:40:06,181 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-21 15:40:06,182 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526260003] [2020-07-21 15:40:06,183 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 15:40:06,183 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:40:06,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 15:40:06,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-07-21 15:40:06,184 INFO L87 Difference]: Start difference. First operand 131 states and 151 transitions. Second operand 7 states. [2020-07-21 15:40:07,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:40:07,048 INFO L93 Difference]: Finished difference Result 317 states and 390 transitions. [2020-07-21 15:40:07,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-21 15:40:07,049 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 64 [2020-07-21 15:40:07,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:40:07,053 INFO L225 Difference]: With dead ends: 317 [2020-07-21 15:40:07,053 INFO L226 Difference]: Without dead ends: 210 [2020-07-21 15:40:07,054 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-07-21 15:40:07,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2020-07-21 15:40:07,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 194. [2020-07-21 15:40:07,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2020-07-21 15:40:07,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 227 transitions. [2020-07-21 15:40:07,097 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 227 transitions. Word has length 64 [2020-07-21 15:40:07,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:40:07,098 INFO L479 AbstractCegarLoop]: Abstraction has 194 states and 227 transitions. [2020-07-21 15:40:07,098 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 15:40:07,098 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 227 transitions. [2020-07-21 15:40:07,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-07-21 15:40:07,104 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:40:07,105 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 15:40:07,311 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:07,312 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:40:07,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:40:07,313 INFO L82 PathProgramCache]: Analyzing trace with hash 1289424341, now seen corresponding path program 1 times [2020-07-21 15:40:07,313 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:40:07,314 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1360703234] [2020-07-21 15:40:07,314 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:07,597 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:40:07,598 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:40:07,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 744 conjuncts, 25 conjunts are in the unsatisfiable core [2020-07-21 15:40:07,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:40:07,681 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 15:40:07,682 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:40:07,682 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1360703234] [2020-07-21 15:40:07,682 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:40:07,682 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-21 15:40:07,683 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147469552] [2020-07-21 15:40:07,683 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-21 15:40:07,683 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:40:07,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-21 15:40:07,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-07-21 15:40:07,684 INFO L87 Difference]: Start difference. First operand 194 states and 227 transitions. Second operand 11 states. [2020-07-21 15:40:08,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:40:08,453 INFO L93 Difference]: Finished difference Result 508 states and 632 transitions. [2020-07-21 15:40:08,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-21 15:40:08,454 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 94 [2020-07-21 15:40:08,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:40:08,458 INFO L225 Difference]: With dead ends: 508 [2020-07-21 15:40:08,459 INFO L226 Difference]: Without dead ends: 338 [2020-07-21 15:40:08,461 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2020-07-21 15:40:08,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2020-07-21 15:40:08,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 334. [2020-07-21 15:40:08,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 334 states. [2020-07-21 15:40:08,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 400 transitions. [2020-07-21 15:40:08,523 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 400 transitions. Word has length 94 [2020-07-21 15:40:08,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:40:08,524 INFO L479 AbstractCegarLoop]: Abstraction has 334 states and 400 transitions. [2020-07-21 15:40:08,524 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-21 15:40:08,524 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 400 transitions. [2020-07-21 15:40:08,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-07-21 15:40:08,528 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:40:08,528 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 15:40:08,741 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:08,742 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:40:08,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:40:08,743 INFO L82 PathProgramCache]: Analyzing trace with hash 1891099980, now seen corresponding path program 1 times [2020-07-21 15:40:08,743 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:40:08,744 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1816831591] [2020-07-21 15:40:08,744 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:09,040 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:40:09,041 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:40:09,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 873 conjuncts, 14 conjunts are in the unsatisfiable core [2020-07-21 15:40:09,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:40:09,131 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 21 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-21 15:40:09,132 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 15:40:09,308 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 15:40:09,351 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 15:40:09,501 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-07-21 15:40:09,502 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1816831591] [2020-07-21 15:40:09,502 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-21 15:40:09,503 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2020-07-21 15:40:09,503 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370744120] [2020-07-21 15:40:09,505 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 15:40:09,506 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:40:09,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 15:40:09,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 15:40:09,509 INFO L87 Difference]: Start difference. First operand 334 states and 400 transitions. Second operand 5 states. [2020-07-21 15:40:09,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:40:09,955 INFO L93 Difference]: Finished difference Result 895 states and 1150 transitions. [2020-07-21 15:40:09,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 15:40:09,955 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 151 [2020-07-21 15:40:09,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:40:09,961 INFO L225 Difference]: With dead ends: 895 [2020-07-21 15:40:09,961 INFO L226 Difference]: Without dead ends: 585 [2020-07-21 15:40:09,962 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 289 SyntacticMatches, 7 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-07-21 15:40:09,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2020-07-21 15:40:10,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 573. [2020-07-21 15:40:10,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 573 states. [2020-07-21 15:40:10,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 744 transitions. [2020-07-21 15:40:10,012 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 744 transitions. Word has length 151 [2020-07-21 15:40:10,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:40:10,013 INFO L479 AbstractCegarLoop]: Abstraction has 573 states and 744 transitions. [2020-07-21 15:40:10,013 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 15:40:10,013 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 744 transitions. [2020-07-21 15:40:10,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-07-21 15:40:10,016 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:40:10,017 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 15:40:10,231 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:10,232 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:40:10,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:40:10,233 INFO L82 PathProgramCache]: Analyzing trace with hash -1734726574, now seen corresponding path program 1 times [2020-07-21 15:40:10,234 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:40:10,234 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [662160777] [2020-07-21 15:40:10,235 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:10,482 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:40:10,482 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:40:10,485 INFO L263 TraceCheckSpWp]: Trace formula consists of 885 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-21 15:40:10,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:40:10,609 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-21 15:40:10,609 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:40:10,610 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [662160777] [2020-07-21 15:40:10,610 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:40:10,610 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-21 15:40:10,611 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359143159] [2020-07-21 15:40:10,611 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 15:40:10,612 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:40:10,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 15:40:10,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-21 15:40:10,612 INFO L87 Difference]: Start difference. First operand 573 states and 744 transitions. Second operand 8 states. [2020-07-21 15:40:11,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:40:11,071 INFO L93 Difference]: Finished difference Result 1122 states and 1464 transitions. [2020-07-21 15:40:11,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 15:40:11,072 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 155 [2020-07-21 15:40:11,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:40:11,076 INFO L225 Difference]: With dead ends: 1122 [2020-07-21 15:40:11,076 INFO L226 Difference]: Without dead ends: 573 [2020-07-21 15:40:11,079 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 147 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-21 15:40:11,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2020-07-21 15:40:11,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 567. [2020-07-21 15:40:11,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 567 states. [2020-07-21 15:40:11,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 701 transitions. [2020-07-21 15:40:11,120 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 701 transitions. Word has length 155 [2020-07-21 15:40:11,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:40:11,121 INFO L479 AbstractCegarLoop]: Abstraction has 567 states and 701 transitions. [2020-07-21 15:40:11,121 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 15:40:11,121 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 701 transitions. [2020-07-21 15:40:11,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-07-21 15:40:11,125 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:40:11,125 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 15:40:11,340 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:11,341 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:40:11,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:40:11,342 INFO L82 PathProgramCache]: Analyzing trace with hash -37172722, now seen corresponding path program 1 times [2020-07-21 15:40:11,342 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:40:11,343 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1007597920] [2020-07-21 15:40:11,343 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:11,585 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:40:11,586 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:40:11,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 875 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 15:40:11,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:40:11,631 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-07-21 15:40:11,631 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:40:11,632 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1007597920] [2020-07-21 15:40:11,632 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:40:11,633 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 15:40:11,633 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607381495] [2020-07-21 15:40:11,633 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 15:40:11,634 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:40:11,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 15:40:11,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-21 15:40:11,635 INFO L87 Difference]: Start difference. First operand 567 states and 701 transitions. Second operand 6 states. [2020-07-21 15:40:11,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:40:11,685 INFO L93 Difference]: Finished difference Result 1134 states and 1455 transitions. [2020-07-21 15:40:11,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 15:40:11,686 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 151 [2020-07-21 15:40:11,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:40:11,692 INFO L225 Difference]: With dead ends: 1134 [2020-07-21 15:40:11,692 INFO L226 Difference]: Without dead ends: 591 [2020-07-21 15:40:11,695 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-21 15:40:11,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2020-07-21 15:40:11,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 587. [2020-07-21 15:40:11,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 587 states. [2020-07-21 15:40:11,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 723 transitions. [2020-07-21 15:40:11,737 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 723 transitions. Word has length 151 [2020-07-21 15:40:11,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:40:11,739 INFO L479 AbstractCegarLoop]: Abstraction has 587 states and 723 transitions. [2020-07-21 15:40:11,739 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 15:40:11,739 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 723 transitions. [2020-07-21 15:40:11,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-07-21 15:40:11,742 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:40:11,742 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 15:40:11,956 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:11,957 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:40:11,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:40:11,958 INFO L82 PathProgramCache]: Analyzing trace with hash -1903881396, now seen corresponding path program 1 times [2020-07-21 15:40:11,958 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:40:11,959 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [887723354] [2020-07-21 15:40:11,959 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:12,165 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 15:40:12,166 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:40:12,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 740 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-21 15:40:12,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:40:12,199 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-07-21 15:40:12,199 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:40:12,199 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [887723354] [2020-07-21 15:40:12,199 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:40:12,199 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 15:40:12,200 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168413385] [2020-07-21 15:40:12,200 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 15:40:12,200 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:40:12,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 15:40:12,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 15:40:12,201 INFO L87 Difference]: Start difference. First operand 587 states and 723 transitions. Second operand 5 states. [2020-07-21 15:40:12,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:40:12,244 INFO L93 Difference]: Finished difference Result 1119 states and 1430 transitions. [2020-07-21 15:40:12,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 15:40:12,244 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 151 [2020-07-21 15:40:12,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:40:12,248 INFO L225 Difference]: With dead ends: 1119 [2020-07-21 15:40:12,248 INFO L226 Difference]: Without dead ends: 556 [2020-07-21 15:40:12,251 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 15:40:12,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2020-07-21 15:40:12,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 556. [2020-07-21 15:40:12,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2020-07-21 15:40:12,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 681 transitions. [2020-07-21 15:40:12,281 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 681 transitions. Word has length 151 [2020-07-21 15:40:12,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:40:12,282 INFO L479 AbstractCegarLoop]: Abstraction has 556 states and 681 transitions. [2020-07-21 15:40:12,282 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 15:40:12,282 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 681 transitions. [2020-07-21 15:40:12,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-07-21 15:40:12,284 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:40:12,285 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 15:40:12,500 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:12,500 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:40:12,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:40:12,501 INFO L82 PathProgramCache]: Analyzing trace with hash -68038549, now seen corresponding path program 1 times [2020-07-21 15:40:12,501 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:40:12,502 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1761522548] [2020-07-21 15:40:12,502 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:12,678 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 15:40:12,679 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:40:12,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 740 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-21 15:40:12,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:40:12,735 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-21 15:40:12,736 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:40:12,736 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1761522548] [2020-07-21 15:40:12,736 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:40:12,736 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 15:40:12,736 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580202331] [2020-07-21 15:40:12,737 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 15:40:12,737 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:40:12,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 15:40:12,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-21 15:40:12,738 INFO L87 Difference]: Start difference. First operand 556 states and 681 transitions. Second operand 6 states. [2020-07-21 15:40:13,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:40:13,502 INFO L93 Difference]: Finished difference Result 1488 states and 1932 transitions. [2020-07-21 15:40:13,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 15:40:13,503 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 151 [2020-07-21 15:40:13,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:40:13,510 INFO L225 Difference]: With dead ends: 1488 [2020-07-21 15:40:13,510 INFO L226 Difference]: Without dead ends: 956 [2020-07-21 15:40:13,513 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-21 15:40:13,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 956 states. [2020-07-21 15:40:13,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 956 to 929. [2020-07-21 15:40:13,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 929 states. [2020-07-21 15:40:13,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 929 states to 929 states and 1146 transitions. [2020-07-21 15:40:13,573 INFO L78 Accepts]: Start accepts. Automaton has 929 states and 1146 transitions. Word has length 151 [2020-07-21 15:40:13,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:40:13,573 INFO L479 AbstractCegarLoop]: Abstraction has 929 states and 1146 transitions. [2020-07-21 15:40:13,573 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 15:40:13,573 INFO L276 IsEmpty]: Start isEmpty. Operand 929 states and 1146 transitions. [2020-07-21 15:40:13,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-07-21 15:40:13,577 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:40:13,578 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 15:40:13,791 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:13,792 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:40:13,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:40:13,793 INFO L82 PathProgramCache]: Analyzing trace with hash 1698521745, now seen corresponding path program 1 times [2020-07-21 15:40:13,793 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:40:13,793 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1152175455] [2020-07-21 15:40:13,793 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:14,039 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:40:14,039 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:40:14,043 INFO L263 TraceCheckSpWp]: Trace formula consists of 885 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-21 15:40:14,047 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:40:14,144 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-21 15:40:14,145 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:40:14,145 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1152175455] [2020-07-21 15:40:14,145 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:40:14,145 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-21 15:40:14,145 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359919145] [2020-07-21 15:40:14,146 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-21 15:40:14,146 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:40:14,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-21 15:40:14,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-07-21 15:40:14,147 INFO L87 Difference]: Start difference. First operand 929 states and 1146 transitions. Second operand 9 states. [2020-07-21 15:40:15,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:40:15,765 INFO L93 Difference]: Finished difference Result 2461 states and 3300 transitions. [2020-07-21 15:40:15,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-21 15:40:15,766 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 155 [2020-07-21 15:40:15,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:40:15,778 INFO L225 Difference]: With dead ends: 2461 [2020-07-21 15:40:15,778 INFO L226 Difference]: Without dead ends: 1556 [2020-07-21 15:40:15,782 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2020-07-21 15:40:15,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1556 states. [2020-07-21 15:40:15,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1556 to 1252. [2020-07-21 15:40:15,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1252 states. [2020-07-21 15:40:15,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1252 states to 1252 states and 1535 transitions. [2020-07-21 15:40:15,879 INFO L78 Accepts]: Start accepts. Automaton has 1252 states and 1535 transitions. Word has length 155 [2020-07-21 15:40:15,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:40:15,880 INFO L479 AbstractCegarLoop]: Abstraction has 1252 states and 1535 transitions. [2020-07-21 15:40:15,881 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-21 15:40:15,881 INFO L276 IsEmpty]: Start isEmpty. Operand 1252 states and 1535 transitions. [2020-07-21 15:40:15,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-07-21 15:40:15,884 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:40:15,884 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 15:40:16,098 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:16,099 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:40:16,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:40:16,099 INFO L82 PathProgramCache]: Analyzing trace with hash 1973281359, now seen corresponding path program 1 times [2020-07-21 15:40:16,099 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:40:16,100 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [717541713] [2020-07-21 15:40:16,100 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:16,435 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:40:16,436 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:40:16,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 886 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 15:40:16,443 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:40:16,509 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-07-21 15:40:16,509 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:40:16,510 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [717541713] [2020-07-21 15:40:16,510 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:40:16,510 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 15:40:16,511 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480702384] [2020-07-21 15:40:16,511 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 15:40:16,511 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:40:16,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 15:40:16,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-21 15:40:16,512 INFO L87 Difference]: Start difference. First operand 1252 states and 1535 transitions. Second operand 6 states. [2020-07-21 15:40:16,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:40:16,566 INFO L93 Difference]: Finished difference Result 1735 states and 2123 transitions. [2020-07-21 15:40:16,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 15:40:16,566 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 155 [2020-07-21 15:40:16,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:40:16,568 INFO L225 Difference]: With dead ends: 1735 [2020-07-21 15:40:16,569 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 15:40:16,573 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-21 15:40:16,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 15:40:16,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 15:40:16,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 15:40:16,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 15:40:16,575 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 155 [2020-07-21 15:40:16,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:40:16,575 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 15:40:16,575 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 15:40:16,575 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 15:40:16,575 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 15:40:16,788 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:16,792 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 15:40:18,774 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 32 [2020-07-21 15:40:19,123 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 42 [2020-07-21 15:40:19,366 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 31 [2020-07-21 15:40:19,541 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 23 [2020-07-21 15:40:19,768 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 38 [2020-07-21 15:40:19,971 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 27 [2020-07-21 15:40:20,110 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 26 [2020-07-21 15:40:20,438 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 32 [2020-07-21 15:40:20,620 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 31 [2020-07-21 15:40:20,768 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 31 [2020-07-21 15:40:20,999 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 21 [2020-07-21 15:40:21,320 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 21 [2020-07-21 15:40:21,689 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 24 [2020-07-21 15:40:22,151 WARN L193 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 40 [2020-07-21 15:40:22,361 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 29 [2020-07-21 15:40:22,610 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 21 [2020-07-21 15:40:23,058 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 31 [2020-07-21 15:40:23,232 INFO L268 CegarLoopResult]: For program point L190(lines 190 194) no Hoare annotation was computed. [2020-07-21 15:40:23,232 INFO L268 CegarLoopResult]: For program point L190-1(lines 190 194) no Hoare annotation was computed. [2020-07-21 15:40:23,232 INFO L268 CegarLoopResult]: For program point L185(line 185) no Hoare annotation was computed. [2020-07-21 15:40:23,232 INFO L268 CegarLoopResult]: For program point L184-2(lines 184 205) no Hoare annotation was computed. [2020-07-21 15:40:23,232 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeFINAL(lines 159 214) no Hoare annotation was computed. [2020-07-21 15:40:23,232 INFO L268 CegarLoopResult]: For program point L206(lines 183 207) no Hoare annotation was computed. [2020-07-21 15:40:23,232 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeEXIT(lines 159 214) no Hoare annotation was computed. [2020-07-21 15:40:23,232 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeENTRY(lines 159 214) no Hoare annotation was computed. [2020-07-21 15:40:23,233 INFO L268 CegarLoopResult]: For program point L247(lines 247 251) no Hoare annotation was computed. [2020-07-21 15:40:23,233 INFO L268 CegarLoopResult]: For program point L247-1(lines 247 251) no Hoare annotation was computed. [2020-07-21 15:40:23,233 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetFINAL(lines 215 274) no Hoare annotation was computed. [2020-07-21 15:40:23,233 INFO L268 CegarLoopResult]: For program point L242(line 242) no Hoare annotation was computed. [2020-07-21 15:40:23,233 INFO L268 CegarLoopResult]: For program point L241-2(lines 241 266) no Hoare annotation was computed. [2020-07-21 15:40:23,233 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetENTRY(lines 215 274) no Hoare annotation was computed. [2020-07-21 15:40:23,233 INFO L268 CegarLoopResult]: For program point L267(lines 240 268) no Hoare annotation was computed. [2020-07-21 15:40:23,233 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetEXIT(lines 215 274) no Hoare annotation was computed. [2020-07-21 15:40:23,234 INFO L268 CegarLoopResult]: For program point L260(line 260) no Hoare annotation was computed. [2020-07-21 15:40:23,234 INFO L268 CegarLoopResult]: For program point L260-1(line 260) no Hoare annotation was computed. [2020-07-21 15:40:23,234 INFO L271 CegarLoopResult]: At program point select_helpersFINAL(lines 90 96) the Hoare annotation is: true [2020-07-21 15:40:23,234 INFO L268 CegarLoopResult]: For program point select_helpersEXIT(lines 90 96) no Hoare annotation was computed. [2020-07-21 15:40:23,234 INFO L268 CegarLoopResult]: For program point valid_productEXIT(lines 97 105) no Hoare annotation was computed. [2020-07-21 15:40:23,234 INFO L271 CegarLoopResult]: At program point valid_productENTRY(lines 97 105) the Hoare annotation is: true [2020-07-21 15:40:23,234 INFO L268 CegarLoopResult]: For program point valid_productFINAL(lines 97 105) no Hoare annotation was computed. [2020-07-21 15:40:23,234 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 836 858) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 1 |old(~waterLevel~0)|))) [2020-07-21 15:40:23,234 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 836 858) no Hoare annotation was computed. [2020-07-21 15:40:23,235 INFO L264 CegarLoopResult]: At program point L848(line 848) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 1 |old(~waterLevel~0)|))) [2020-07-21 15:40:23,235 INFO L264 CegarLoopResult]: At program point L848-1(line 848) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 1 |old(~waterLevel~0)|))) [2020-07-21 15:40:23,235 INFO L268 CegarLoopResult]: For program point L846(lines 846 853) no Hoare annotation was computed. [2020-07-21 15:40:23,235 INFO L268 CegarLoopResult]: For program point L846-1(lines 846 853) no Hoare annotation was computed. [2020-07-21 15:40:23,235 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 836 858) no Hoare annotation was computed. [2020-07-21 15:40:23,235 INFO L268 CegarLoopResult]: For program point L844(line 844) no Hoare annotation was computed. [2020-07-21 15:40:23,236 INFO L264 CegarLoopResult]: At program point L843(line 843) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 1 |old(~waterLevel~0)|))) [2020-07-21 15:40:23,236 INFO L264 CegarLoopResult]: At program point L842(line 842) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 1 |old(~waterLevel~0)|))) [2020-07-21 15:40:23,236 INFO L264 CegarLoopResult]: At program point L842-1(line 842) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 1 |old(~waterLevel~0)|))) [2020-07-21 15:40:23,236 INFO L268 CegarLoopResult]: For program point L801(line 801) no Hoare annotation was computed. [2020-07-21 15:40:23,236 INFO L268 CegarLoopResult]: For program point L800(line 800) no Hoare annotation was computed. [2020-07-21 15:40:23,236 INFO L268 CegarLoopResult]: For program point Specification2EXIT(lines 795 818) no Hoare annotation was computed. [2020-07-21 15:40:23,236 INFO L268 CegarLoopResult]: For program point Specification2ENTRY(lines 795 818) no Hoare annotation was computed. [2020-07-21 15:40:23,237 INFO L268 CegarLoopResult]: For program point Specification2FINAL(lines 795 818) no Hoare annotation was computed. [2020-07-21 15:40:23,237 INFO L268 CegarLoopResult]: For program point L813(line 813) no Hoare annotation was computed. [2020-07-21 15:40:23,237 INFO L268 CegarLoopResult]: For program point L812(line 812) no Hoare annotation was computed. [2020-07-21 15:40:23,237 INFO L268 CegarLoopResult]: For program point L811(line 811) no Hoare annotation was computed. [2020-07-21 15:40:23,237 INFO L268 CegarLoopResult]: For program point L810(line 810) no Hoare annotation was computed. [2020-07-21 15:40:23,237 INFO L268 CegarLoopResult]: For program point L809(line 809) no Hoare annotation was computed. [2020-07-21 15:40:23,237 INFO L268 CegarLoopResult]: For program point L808(line 808) no Hoare annotation was computed. [2020-07-21 15:40:23,237 INFO L268 CegarLoopResult]: For program point L807(line 807) no Hoare annotation was computed. [2020-07-21 15:40:23,237 INFO L268 CegarLoopResult]: For program point L806(line 806) no Hoare annotation was computed. [2020-07-21 15:40:23,237 INFO L268 CegarLoopResult]: For program point L805(line 805) no Hoare annotation was computed. [2020-07-21 15:40:23,237 INFO L268 CegarLoopResult]: For program point L804(line 804) no Hoare annotation was computed. [2020-07-21 15:40:23,237 INFO L268 CegarLoopResult]: For program point L803(line 803) no Hoare annotation was computed. [2020-07-21 15:40:23,238 INFO L268 CegarLoopResult]: For program point L802(line 802) no Hoare annotation was computed. [2020-07-21 15:40:23,238 INFO L268 CegarLoopResult]: For program point isPumpRunningEXIT(lines 680 688) no Hoare annotation was computed. [2020-07-21 15:40:23,238 INFO L271 CegarLoopResult]: At program point isPumpRunningENTRY(lines 680 688) the Hoare annotation is: true [2020-07-21 15:40:23,238 INFO L268 CegarLoopResult]: For program point isPumpRunningFINAL(lines 680 688) no Hoare annotation was computed. [2020-07-21 15:40:23,238 INFO L268 CegarLoopResult]: For program point L753(lines 753 757) no Hoare annotation was computed. [2020-07-21 15:40:23,238 INFO L271 CegarLoopResult]: At program point L751(line 751) the Hoare annotation is: true [2020-07-21 15:40:23,238 INFO L268 CegarLoopResult]: For program point L753-2(lines 753 757) no Hoare annotation was computed. [2020-07-21 15:40:23,238 INFO L268 CegarLoopResult]: For program point L751-1(line 751) no Hoare annotation was computed. [2020-07-21 15:40:23,238 INFO L271 CegarLoopResult]: At program point isLowWaterLevelENTRY(lines 744 762) the Hoare annotation is: true [2020-07-21 15:40:23,238 INFO L268 CegarLoopResult]: For program point isLowWaterLevelEXIT(lines 744 762) no Hoare annotation was computed. [2020-07-21 15:40:23,239 INFO L268 CegarLoopResult]: For program point isLowWaterLevelFINAL(lines 744 762) no Hoare annotation was computed. [2020-07-21 15:40:23,239 INFO L268 CegarLoopResult]: For program point L696(lines 696 704) no Hoare annotation was computed. [2020-07-21 15:40:23,239 INFO L268 CegarLoopResult]: For program point L696-2(lines 696 704) no Hoare annotation was computed. [2020-07-21 15:40:23,239 INFO L268 CegarLoopResult]: For program point L719(line 719) no Hoare annotation was computed. [2020-07-21 15:40:23,239 INFO L268 CegarLoopResult]: For program point printPumpFINAL(lines 689 724) no Hoare annotation was computed. [2020-07-21 15:40:23,239 INFO L268 CegarLoopResult]: For program point L719-1(line 719) no Hoare annotation was computed. [2020-07-21 15:40:23,239 INFO L268 CegarLoopResult]: For program point printPumpENTRY(lines 689 724) no Hoare annotation was computed. [2020-07-21 15:40:23,239 INFO L268 CegarLoopResult]: For program point L708(lines 708 716) no Hoare annotation was computed. [2020-07-21 15:40:23,239 INFO L268 CegarLoopResult]: For program point printPumpEXIT(lines 689 724) no Hoare annotation was computed. [2020-07-21 15:40:23,240 INFO L268 CegarLoopResult]: For program point L708-2(lines 708 716) no Hoare annotation was computed. [2020-07-21 15:40:23,240 INFO L268 CegarLoopResult]: For program point select_featuresEXIT(lines 83 89) no Hoare annotation was computed. [2020-07-21 15:40:23,240 INFO L271 CegarLoopResult]: At program point select_featuresFINAL(lines 83 89) the Hoare annotation is: true [2020-07-21 15:40:23,240 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setENTRY(lines 113 158) no Hoare annotation was computed. [2020-07-21 15:40:23,240 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setEXIT(lines 113 158) no Hoare annotation was computed. [2020-07-21 15:40:23,240 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setFINAL(lines 113 158) no Hoare annotation was computed. [2020-07-21 15:40:23,240 INFO L268 CegarLoopResult]: For program point L446(lines 446 453) no Hoare annotation was computed. [2020-07-21 15:40:23,240 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeFINAL(lines 426 471) no Hoare annotation was computed. [2020-07-21 15:40:23,241 INFO L268 CegarLoopResult]: For program point L440(lines 440 460) no Hoare annotation was computed. [2020-07-21 15:40:23,241 INFO L268 CegarLoopResult]: For program point L440-1(lines 440 460) no Hoare annotation was computed. [2020-07-21 15:40:23,241 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeENTRY(lines 426 471) no Hoare annotation was computed. [2020-07-21 15:40:23,241 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeEXIT(lines 426 471) no Hoare annotation was computed. [2020-07-21 15:40:23,241 INFO L264 CegarLoopResult]: At program point runTestENTRY(lines 826 835) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 1 |old(~waterLevel~0)|))) [2020-07-21 15:40:23,241 INFO L268 CegarLoopResult]: For program point runTestEXIT(lines 826 835) no Hoare annotation was computed. [2020-07-21 15:40:23,241 INFO L268 CegarLoopResult]: For program point runTestFINAL(lines 826 835) no Hoare annotation was computed. [2020-07-21 15:40:23,241 INFO L268 CegarLoopResult]: For program point L674-1(line 674) no Hoare annotation was computed. [2020-07-21 15:40:23,241 INFO L271 CegarLoopResult]: At program point isMethaneAlarmENTRY(lines 669 679) the Hoare annotation is: true [2020-07-21 15:40:23,242 INFO L268 CegarLoopResult]: For program point isMethaneAlarmEXIT(lines 669 679) no Hoare annotation was computed. [2020-07-21 15:40:23,242 INFO L268 CegarLoopResult]: For program point isMethaneAlarmFINAL(lines 669 679) no Hoare annotation was computed. [2020-07-21 15:40:23,242 INFO L271 CegarLoopResult]: At program point L674(line 674) the Hoare annotation is: true [2020-07-21 15:40:23,242 INFO L264 CegarLoopResult]: At program point deactivatePumpENTRY(lines 661 668) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse2 (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (and (or .cse0 .cse1 .cse2 (not (= 0 ~methaneLevelCritical~0))) (or .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0)) .cse2))) [2020-07-21 15:40:23,242 INFO L268 CegarLoopResult]: For program point deactivatePumpEXIT(lines 661 668) no Hoare annotation was computed. [2020-07-21 15:40:23,242 INFO L268 CegarLoopResult]: For program point deactivatePumpFINAL(lines 661 668) no Hoare annotation was computed. [2020-07-21 15:40:23,242 INFO L268 CegarLoopResult]: For program point L944(lines 944 950) no Hoare annotation was computed. [2020-07-21 15:40:23,243 INFO L268 CegarLoopResult]: For program point isHighWaterSensorDryEXIT(lines 940 953) no Hoare annotation was computed. [2020-07-21 15:40:23,243 INFO L271 CegarLoopResult]: At program point isHighWaterSensorDryENTRY(lines 940 953) the Hoare annotation is: true [2020-07-21 15:40:23,243 INFO L268 CegarLoopResult]: For program point isHighWaterSensorDryFINAL(lines 940 953) no Hoare annotation was computed. [2020-07-21 15:40:23,243 INFO L268 CegarLoopResult]: For program point processEnvironmentEXIT(lines 610 634) no Hoare annotation was computed. [2020-07-21 15:40:23,243 INFO L264 CegarLoopResult]: At program point L629(line 629) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse2 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= 0 ~pumpRunning~0)))) (and (or .cse0 .cse1 .cse2 (not (= 0 ~methaneLevelCritical~0))) (or .cse0 .cse1 .cse2 (not (<= 1 ~methaneLevelCritical~0))))) [2020-07-21 15:40:23,243 INFO L268 CegarLoopResult]: For program point L629-1(lines 610 634) no Hoare annotation was computed. [2020-07-21 15:40:23,243 INFO L264 CegarLoopResult]: At program point processEnvironmentENTRY(lines 610 634) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse2 (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (and (or .cse0 .cse1 .cse2 (not (= 0 ~methaneLevelCritical~0))) (or .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0)) .cse2))) [2020-07-21 15:40:23,244 INFO L264 CegarLoopResult]: At program point L624(line 624) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (= 0 ~methaneLevelCritical~0))) (or .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0))))) [2020-07-21 15:40:23,244 INFO L264 CegarLoopResult]: At program point L620(line 620) the Hoare annotation is: (let ((.cse5 (not (= 0 ~methaneLevelCritical~0))) (.cse3 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 processEnvironment_~tmp~6))) (.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse2 (not (<= 1 ~methaneLevelCritical~0))) (.cse4 (not (= 0 |old(~pumpRunning~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse4 .cse5) (or .cse0 .cse1 .cse5 .cse3) (or .cse0 .cse1 .cse2 .cse4))) [2020-07-21 15:40:23,244 INFO L268 CegarLoopResult]: For program point L618(lines 618 626) no Hoare annotation was computed. [2020-07-21 15:40:23,244 INFO L264 CegarLoopResult]: At program point L616(line 616) the Hoare annotation is: (let ((.cse3 (not (= 0 ~methaneLevelCritical~0))) (.cse2 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse5 (not (<= 1 ~methaneLevelCritical~0))) (.cse4 (not (= 0 |old(~pumpRunning~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse4 .cse3) (or .cse0 .cse1 .cse5 .cse2) (or .cse0 .cse1 .cse5 .cse4))) [2020-07-21 15:40:23,244 INFO L268 CegarLoopResult]: For program point L616-1(line 616) no Hoare annotation was computed. [2020-07-21 15:40:23,244 INFO L268 CegarLoopResult]: For program point L614(lines 614 631) no Hoare annotation was computed. [2020-07-21 15:40:23,244 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__baseEXIT(lines 576 582) no Hoare annotation was computed. [2020-07-21 15:40:23,244 INFO L271 CegarLoopResult]: At program point processEnvironment__wrappee__baseFINAL(lines 576 582) the Hoare annotation is: true [2020-07-21 15:40:23,244 INFO L264 CegarLoopResult]: At program point testENTRY(lines 477 540) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 1 |old(~waterLevel~0)|))) [2020-07-21 15:40:23,244 INFO L268 CegarLoopResult]: For program point testFINAL(lines 477 540) no Hoare annotation was computed. [2020-07-21 15:40:23,245 INFO L264 CegarLoopResult]: At program point L533(lines 486 534) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 ~systemActive~0))) [2020-07-21 15:40:23,245 INFO L268 CegarLoopResult]: For program point L523(lines 523 527) no Hoare annotation was computed. [2020-07-21 15:40:23,245 INFO L264 CegarLoopResult]: At program point L523-2(lines 517 528) the Hoare annotation is: (let ((.cse1 (<= 1 ~methaneLevelCritical~0)) (.cse4 (<= 1 ~waterLevel~0)) (.cse5 (= 0 ~pumpRunning~0)) (.cse3 (= 0 ~methaneLevelCritical~0)) (.cse0 (<= 2 ~waterLevel~0)) (.cse2 (<= test_~splverifierCounter~0 0))) (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (and .cse0 .cse1 .cse2) (and .cse3 .cse4 .cse5 .cse2) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and .cse1 .cse4 .cse5 .cse2) (and .cse3 .cse0 .cse2) (not (<= 1 |old(~waterLevel~0)|)))) [2020-07-21 15:40:23,245 INFO L268 CegarLoopResult]: For program point L488(lines 487 532) no Hoare annotation was computed. [2020-07-21 15:40:23,245 INFO L268 CegarLoopResult]: For program point L517(lines 517 528) no Hoare annotation was computed. [2020-07-21 15:40:23,245 INFO L264 CegarLoopResult]: At program point L509(line 509) the Hoare annotation is: (let ((.cse1 (<= 1 ~waterLevel~0)) (.cse2 (= 0 ~pumpRunning~0)) (.cse0 (= 0 ~methaneLevelCritical~0)) (.cse3 (<= test_~splverifierCounter~0 0))) (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (and .cse0 .cse1 .cse2 .cse3) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (<= 1 ~methaneLevelCritical~0) .cse1 .cse2 .cse3) (and .cse0 (<= 2 ~waterLevel~0) .cse3) (not (<= 1 |old(~waterLevel~0)|)))) [2020-07-21 15:40:23,245 INFO L268 CegarLoopResult]: For program point L507(lines 507 513) no Hoare annotation was computed. [2020-07-21 15:40:23,245 INFO L268 CegarLoopResult]: For program point L507-1(lines 507 513) no Hoare annotation was computed. [2020-07-21 15:40:23,245 INFO L264 CegarLoopResult]: At program point L499(line 499) the Hoare annotation is: (let ((.cse1 (<= 1 ~waterLevel~0)) (.cse2 (= 0 ~pumpRunning~0)) (.cse0 (= 0 ~methaneLevelCritical~0)) (.cse3 (<= test_~splverifierCounter~0 0))) (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (and .cse0 .cse1 .cse2 .cse3) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (<= 1 ~methaneLevelCritical~0) .cse1 .cse2 .cse3) (and .cse0 (<= 2 ~waterLevel~0) .cse3) (not (<= 1 |old(~waterLevel~0)|)))) [2020-07-21 15:40:23,246 INFO L264 CegarLoopResult]: At program point L530(lines 487 532) the Hoare annotation is: (let ((.cse1 (<= 1 ~waterLevel~0)) (.cse2 (= 0 ~pumpRunning~0)) (.cse0 (= 0 ~methaneLevelCritical~0)) (.cse3 (<= test_~splverifierCounter~0 0))) (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (and .cse0 .cse1 .cse2 .cse3) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (<= 1 ~methaneLevelCritical~0) .cse1 .cse2 .cse3) (and .cse0 (<= 2 ~waterLevel~0) .cse3) (not (<= 1 |old(~waterLevel~0)|)))) [2020-07-21 15:40:23,246 INFO L268 CegarLoopResult]: For program point L497(lines 497 503) no Hoare annotation was computed. [2020-07-21 15:40:23,246 INFO L268 CegarLoopResult]: For program point L497-1(lines 497 503) no Hoare annotation was computed. [2020-07-21 15:40:23,246 INFO L268 CegarLoopResult]: For program point L489(lines 489 493) no Hoare annotation was computed. [2020-07-21 15:40:23,246 INFO L268 CegarLoopResult]: For program point testEXIT(lines 477 540) no Hoare annotation was computed. [2020-07-21 15:40:23,246 INFO L268 CegarLoopResult]: For program point __utac__get_this_argENTRY(lines 380 425) no Hoare annotation was computed. [2020-07-21 15:40:23,246 INFO L268 CegarLoopResult]: For program point __utac__get_this_argEXIT(lines 380 425) no Hoare annotation was computed. [2020-07-21 15:40:23,246 INFO L268 CegarLoopResult]: For program point __utac__get_this_argFINAL(lines 380 425) no Hoare annotation was computed. [2020-07-21 15:40:23,246 INFO L268 CegarLoopResult]: For program point L400(lines 400 407) no Hoare annotation was computed. [2020-07-21 15:40:23,246 INFO L268 CegarLoopResult]: For program point L394(lines 394 414) no Hoare annotation was computed. [2020-07-21 15:40:23,246 INFO L268 CegarLoopResult]: For program point L394-1(lines 394 414) no Hoare annotation was computed. [2020-07-21 15:40:23,246 INFO L264 CegarLoopResult]: At program point activatePump__wrappee__lowWaterSensorENTRY(lines 635 642) the Hoare annotation is: (or (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= 0 ~methaneLevelCritical~0)) (= 0 ~pumpRunning~0) (not (<= 2 ~waterLevel~0))) [2020-07-21 15:40:23,246 INFO L268 CegarLoopResult]: For program point activatePump__wrappee__lowWaterSensorFINAL(lines 635 642) no Hoare annotation was computed. [2020-07-21 15:40:23,247 INFO L268 CegarLoopResult]: For program point activatePump__wrappee__lowWaterSensorEXIT(lines 635 642) no Hoare annotation was computed. [2020-07-21 15:40:23,247 INFO L268 CegarLoopResult]: For program point isLowWaterSensorDryFINAL(lines 954 962) no Hoare annotation was computed. [2020-07-21 15:40:23,247 INFO L271 CegarLoopResult]: At program point isLowWaterSensorDryENTRY(lines 954 962) the Hoare annotation is: true [2020-07-21 15:40:23,247 INFO L268 CegarLoopResult]: For program point isLowWaterSensorDryEXIT(lines 954 962) no Hoare annotation was computed. [2020-07-21 15:40:23,247 INFO L268 CegarLoopResult]: For program point printEnvironmentEXIT(lines 908 930) no Hoare annotation was computed. [2020-07-21 15:40:23,247 INFO L268 CegarLoopResult]: For program point printEnvironmentENTRY(lines 908 930) no Hoare annotation was computed. [2020-07-21 15:40:23,247 INFO L268 CegarLoopResult]: For program point printEnvironmentFINAL(lines 908 930) no Hoare annotation was computed. [2020-07-21 15:40:23,247 INFO L268 CegarLoopResult]: For program point L916(lines 916 924) no Hoare annotation was computed. [2020-07-21 15:40:23,247 INFO L268 CegarLoopResult]: For program point L916-2(lines 916 924) no Hoare annotation was computed. [2020-07-21 15:40:23,247 INFO L268 CegarLoopResult]: For program point select_oneENTRY(lines 73 82) no Hoare annotation was computed. [2020-07-21 15:40:23,247 INFO L268 CegarLoopResult]: For program point select_oneFINAL(lines 73 82) no Hoare annotation was computed. [2020-07-21 15:40:23,247 INFO L268 CegarLoopResult]: For program point select_oneEXIT(lines 73 82) no Hoare annotation was computed. [2020-07-21 15:40:23,247 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtENTRY(lines 277 379) no Hoare annotation was computed. [2020-07-21 15:40:23,247 INFO L268 CegarLoopResult]: For program point L347(lines 325 348) no Hoare annotation was computed. [2020-07-21 15:40:23,248 INFO L268 CegarLoopResult]: For program point L306(lines 306 322) no Hoare annotation was computed. [2020-07-21 15:40:23,248 INFO L268 CegarLoopResult]: For program point L366(lines 366 373) no Hoare annotation was computed. [2020-07-21 15:40:23,248 INFO L268 CegarLoopResult]: For program point L327(lines 326 346) no Hoare annotation was computed. [2020-07-21 15:40:23,248 INFO L268 CegarLoopResult]: For program point L358(line 358) no Hoare annotation was computed. [2020-07-21 15:40:23,248 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtFINAL(lines 277 379) no Hoare annotation was computed. [2020-07-21 15:40:23,248 INFO L268 CegarLoopResult]: For program point L358-1(line 358) no Hoare annotation was computed. [2020-07-21 15:40:23,248 INFO L268 CegarLoopResult]: For program point L323(lines 323 364) no Hoare annotation was computed. [2020-07-21 15:40:23,248 INFO L268 CegarLoopResult]: For program point L342(line 342) no Hoare annotation was computed. [2020-07-21 15:40:23,248 INFO L268 CegarLoopResult]: For program point L342-1(line 342) no Hoare annotation was computed. [2020-07-21 15:40:23,248 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtEXIT(lines 277 379) no Hoare annotation was computed. [2020-07-21 15:40:23,248 INFO L268 CegarLoopResult]: For program point L301(lines 301 305) no Hoare annotation was computed. [2020-07-21 15:40:23,248 INFO L268 CegarLoopResult]: For program point L365(lines 365 376) no Hoare annotation was computed. [2020-07-21 15:40:23,248 INFO L268 CegarLoopResult]: For program point L328(lines 328 332) no Hoare annotation was computed. [2020-07-21 15:40:23,248 INFO L268 CegarLoopResult]: For program point L326-2(lines 326 346) no Hoare annotation was computed. [2020-07-21 15:40:23,249 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 15:40:23,249 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= |old(~waterLevel~0)| ~waterLevel~0)) [2020-07-21 15:40:23,249 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 15:40:23,249 INFO L264 CegarLoopResult]: At program point L655(line 655) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (<= 2 ~waterLevel~0)))) (and (or .cse0 (and (= ~methaneLevelCritical~0 activatePump_~tmp~7) (= 0 ~pumpRunning~0)) .cse1 (not (= 0 ~methaneLevelCritical~0)) .cse2) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1 .cse2))) [2020-07-21 15:40:23,249 INFO L268 CegarLoopResult]: For program point L655-1(lines 644 660) no Hoare annotation was computed. [2020-07-21 15:40:23,249 INFO L268 CegarLoopResult]: For program point activatePumpEXIT(lines 644 660) no Hoare annotation was computed. [2020-07-21 15:40:23,249 INFO L268 CegarLoopResult]: For program point L651(lines 651 657) no Hoare annotation was computed. [2020-07-21 15:40:23,249 INFO L264 CegarLoopResult]: At program point L649(line 649) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (= 0 ~pumpRunning~0)) (.cse3 (not (<= 2 ~waterLevel~0)))) (and (or .cse0 .cse1 (not (= 0 ~methaneLevelCritical~0)) .cse2 .cse3) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1 .cse2 .cse3))) [2020-07-21 15:40:23,249 INFO L264 CegarLoopResult]: At program point activatePumpENTRY(lines 644 660) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (= 0 ~pumpRunning~0)) (.cse3 (not (<= 2 ~waterLevel~0)))) (and (or .cse0 .cse1 (not (= 0 ~methaneLevelCritical~0)) .cse2 .cse3) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1 .cse2 .cse3))) [2020-07-21 15:40:23,249 INFO L268 CegarLoopResult]: For program point L649-1(line 649) no Hoare annotation was computed. [2020-07-21 15:40:23,249 INFO L268 CegarLoopResult]: For program point isHighWaterLevelEXIT(lines 725 743) no Hoare annotation was computed. [2020-07-21 15:40:23,249 INFO L268 CegarLoopResult]: For program point L734(lines 734 738) no Hoare annotation was computed. [2020-07-21 15:40:23,250 INFO L271 CegarLoopResult]: At program point L732(line 732) the Hoare annotation is: true [2020-07-21 15:40:23,250 INFO L268 CegarLoopResult]: For program point L734-2(lines 734 738) no Hoare annotation was computed. [2020-07-21 15:40:23,250 INFO L268 CegarLoopResult]: For program point L732-1(line 732) no Hoare annotation was computed. [2020-07-21 15:40:23,250 INFO L271 CegarLoopResult]: At program point isHighWaterLevelENTRY(lines 725 743) the Hoare annotation is: true [2020-07-21 15:40:23,250 INFO L268 CegarLoopResult]: For program point isHighWaterLevelFINAL(lines 725 743) no Hoare annotation was computed. [2020-07-21 15:40:23,250 INFO L268 CegarLoopResult]: For program point getWaterLevelENTRY(lines 931 939) no Hoare annotation was computed. [2020-07-21 15:40:23,250 INFO L268 CegarLoopResult]: For program point getWaterLevelFINAL(lines 931 939) no Hoare annotation was computed. [2020-07-21 15:40:23,250 INFO L268 CegarLoopResult]: For program point getWaterLevelEXIT(lines 931 939) no Hoare annotation was computed. [2020-07-21 15:40:23,251 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2020-07-21 15:40:23,251 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intENTRY(line -1) no Hoare annotation was computed. [2020-07-21 15:40:23,251 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intFINAL(line -1) no Hoare annotation was computed. [2020-07-21 15:40:23,251 INFO L264 CegarLoopResult]: At program point changeMethaneLevelENTRY(lines 887 898) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse3 (= 0 ~methaneLevelCritical~0)) (.cse4 (not (= |old(~methaneLevelCritical~0)| 0))) (.cse2 (not (= 0 ~pumpRunning~0)))) (and (or .cse0 .cse1 (<= 1 ~methaneLevelCritical~0) .cse2 (not (<= 1 |old(~methaneLevelCritical~0)|))) (or .cse1 .cse3 .cse4 (not (<= 2 ~waterLevel~0))) (or .cse0 .cse1 .cse3 .cse4 .cse2))) [2020-07-21 15:40:23,251 INFO L268 CegarLoopResult]: For program point L891-1(lines 887 898) no Hoare annotation was computed. [2020-07-21 15:40:23,251 INFO L268 CegarLoopResult]: For program point changeMethaneLevelEXIT(lines 887 898) no Hoare annotation was computed. [2020-07-21 15:40:23,251 INFO L271 CegarLoopResult]: At program point isMethaneLevelCriticalENTRY(lines 899 907) the Hoare annotation is: true [2020-07-21 15:40:23,251 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalFINAL(lines 899 907) no Hoare annotation was computed. [2020-07-21 15:40:23,252 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalEXIT(lines 899 907) no Hoare annotation was computed. [2020-07-21 15:40:23,252 INFO L264 CegarLoopResult]: At program point L565(line 565) the Hoare annotation is: (let ((.cse1 (<= ~waterLevel~0 |old(~waterLevel~0)|))) (let ((.cse2 (= 0 ~pumpRunning~0)) (.cse6 (not (<= 1 |old(~waterLevel~0)|))) (.cse4 (not (<= 1 ~methaneLevelCritical~0))) (.cse8 (and .cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse5 (not (= 0 |old(~pumpRunning~0)|))) (.cse7 (not (= 0 ~methaneLevelCritical~0))) (.cse9 (not (<= 2 |old(~waterLevel~0)|))) (.cse3 (<= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 (and .cse1 .cse2 .cse3) .cse4 .cse5 .cse6) (or (not (<= |old(~waterLevel~0)| 1)) .cse0 (and .cse2 (<= ~waterLevel~0 1) .cse3) .cse5 .cse7 .cse6) (or .cse0 .cse4 .cse8 .cse9) (or .cse0 .cse7 .cse8 .cse9) (or .cse0 .cse5 .cse7 .cse9 .cse3)))) [2020-07-21 15:40:23,252 INFO L264 CegarLoopResult]: At program point L563(lines 563 569) the Hoare annotation is: (let ((.cse4 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse11 (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1))) (.cse5 (= 0 ~pumpRunning~0))) (let ((.cse1 (not (<= 1 ~methaneLevelCritical~0))) (.cse6 (<= |old(~waterLevel~0)| ~waterLevel~0)) (.cse7 (not (= 0 |old(~pumpRunning~0)|))) (.cse8 (not (<= 1 |old(~waterLevel~0)|))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse9 (<= 2 ~waterLevel~0)) (.cse10 (not (= 0 ~methaneLevelCritical~0))) (.cse2 (and .cse4 .cse11 .cse5)) (.cse3 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 (and .cse4 .cse5 .cse6) .cse7 .cse8) (or .cse0 (and .cse9 .cse4 .cse6) (and .cse5 (<= ~waterLevel~0 1) .cse6) .cse7 .cse10 .cse8) (or .cse0 (and .cse9 .cse4 .cse11) .cse10 .cse2 .cse3)))) [2020-07-21 15:40:23,252 INFO L264 CegarLoopResult]: At program point timeShiftENTRY(lines 552 575) the Hoare annotation is: (let ((.cse4 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse6 (<= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse5 (= 0 ~pumpRunning~0)) (.cse8 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= 0 ~methaneLevelCritical~0))) (.cse9 (not (<= 1 |old(~waterLevel~0)|))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse7 (not (<= 1 ~methaneLevelCritical~0))) (.cse2 (not (<= 2 |old(~waterLevel~0)|))) (.cse3 (and .cse4 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse6))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 (and .cse4 .cse5 .cse6) .cse7 .cse8 .cse9) (or (not (<= |old(~waterLevel~0)| 1)) .cse0 (and .cse5 (<= ~waterLevel~0 1) .cse6) .cse8 .cse1 .cse9) (or .cse0 .cse7 .cse2 .cse3)))) [2020-07-21 15:40:23,252 INFO L264 CegarLoopResult]: At program point L558(line 558) the Hoare annotation is: (let ((.cse2 (not (= 0 ~methaneLevelCritical~0))) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (not (<= 1 |old(~waterLevel~0)|))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse6 (not (<= 1 ~methaneLevelCritical~0))) (.cse4 (not (<= 2 |old(~waterLevel~0)|))) (.cse5 (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= |old(~waterLevel~0)| ~waterLevel~0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse2 .cse4 .cse5) (or .cse0 .cse6 .cse1 .cse3) (or .cse0 .cse6 .cse4 .cse5))) [2020-07-21 15:40:23,253 INFO L268 CegarLoopResult]: For program point L556(lines 555 574) no Hoare annotation was computed. [2020-07-21 15:40:23,253 INFO L268 CegarLoopResult]: For program point timeShiftEXIT(lines 552 575) no Hoare annotation was computed. [2020-07-21 15:40:23,253 INFO L268 CegarLoopResult]: For program point timeShiftFINAL(lines 552 575) no Hoare annotation was computed. [2020-07-21 15:40:23,253 INFO L268 CegarLoopResult]: For program point cleanupEXIT(lines 765 794) no Hoare annotation was computed. [2020-07-21 15:40:23,253 INFO L271 CegarLoopResult]: At program point cleanupENTRY(lines 765 794) the Hoare annotation is: true [2020-07-21 15:40:23,253 INFO L271 CegarLoopResult]: At program point L790(lines 765 794) the Hoare annotation is: true [2020-07-21 15:40:23,253 INFO L268 CegarLoopResult]: For program point L786(line 786) no Hoare annotation was computed. [2020-07-21 15:40:23,253 INFO L268 CegarLoopResult]: For program point L779(lines 779 783) no Hoare annotation was computed. [2020-07-21 15:40:23,253 INFO L271 CegarLoopResult]: At program point L779-1(lines 779 783) the Hoare annotation is: true [2020-07-21 15:40:23,254 INFO L268 CegarLoopResult]: For program point L776(line 776) no Hoare annotation was computed. [2020-07-21 15:40:23,254 INFO L271 CegarLoopResult]: At program point L775-2(lines 775 789) the Hoare annotation is: true [2020-07-21 15:40:23,254 INFO L271 CegarLoopResult]: At program point L771(line 771) the Hoare annotation is: true [2020-07-21 15:40:23,254 INFO L268 CegarLoopResult]: For program point L771-1(line 771) no Hoare annotation was computed. [2020-07-21 15:40:23,254 INFO L264 CegarLoopResult]: At program point lowerWaterLevelENTRY(lines 863 874) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (<= 2 |old(~waterLevel~0)|))) (.cse2 (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (<= |old(~waterLevel~0)| ~waterLevel~0)))) (and (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1 .cse2) (or .cse0 (not (= 0 ~methaneLevelCritical~0)) .cse1 .cse2))) [2020-07-21 15:40:23,254 INFO L268 CegarLoopResult]: For program point lowerWaterLevelEXIT(lines 863 874) no Hoare annotation was computed. [2020-07-21 15:40:23,254 INFO L268 CegarLoopResult]: For program point L867-1(lines 863 874) no Hoare annotation was computed. [2020-07-21 15:40:23,254 INFO L268 CegarLoopResult]: For program point setupEXIT(lines 819 825) no Hoare annotation was computed. [2020-07-21 15:40:23,255 INFO L271 CegarLoopResult]: At program point setupFINAL(lines 819 825) the Hoare annotation is: true [2020-07-21 15:40:23,255 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 15:40:23,255 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 0 ~methaneLevelCritical~0) (<= 1 ~waterLevel~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0)) [2020-07-21 15:40:23,255 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 15:40:23,255 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 15:40:23,255 INFO L264 CegarLoopResult]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 584 608) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (= 0 ~pumpRunning~0))) (and (or .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0)) .cse2 .cse3) (or .cse0 .cse1 .cse2 (not (= 0 ~methaneLevelCritical~0)) .cse3))) [2020-07-21 15:40:23,255 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 584 608) no Hoare annotation was computed. [2020-07-21 15:40:23,255 INFO L264 CegarLoopResult]: At program point L603(line 603) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse2 (not (= 0 |old(~pumpRunning~0)|)))) (and (or .cse0 .cse1 .cse2 (not (= 0 ~methaneLevelCritical~0))) (or .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0)) .cse2))) [2020-07-21 15:40:23,256 INFO L268 CegarLoopResult]: For program point L603-1(lines 584 608) no Hoare annotation was computed. [2020-07-21 15:40:23,256 INFO L264 CegarLoopResult]: At program point L598(line 598) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (and (= 0 processEnvironment__wrappee__highWaterSensor_~tmp~5) (= 0 ~pumpRunning~0)))) (and (or .cse0 .cse1 .cse2 (not (= 0 ~methaneLevelCritical~0)) .cse3) (or .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0)) .cse2 .cse3))) [2020-07-21 15:40:23,256 INFO L264 CegarLoopResult]: At program point L594(line 594) the Hoare annotation is: (let ((.cse3 (= 0 ~pumpRunning~0)) (.cse2 (<= 2 ~waterLevel~0)) (.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse5 (not (<= 1 ~methaneLevelCritical~0))) (.cse4 (not (= 0 |old(~pumpRunning~0)|)))) (and (or .cse0 .cse1 (and .cse2 .cse3) .cse4 (not (= 0 ~methaneLevelCritical~0))) (or .cse1 .cse5 .cse4 .cse3 (not .cse2)) (or .cse0 .cse1 .cse5 .cse4 (not (<= ~waterLevel~0 1))))) [2020-07-21 15:40:23,256 INFO L268 CegarLoopResult]: For program point L592(lines 592 600) no Hoare annotation was computed. [2020-07-21 15:40:23,256 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (= 0 ~pumpRunning~0))) (and (or .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0)) .cse2 .cse3) (or .cse0 .cse1 .cse2 (not (= 0 ~methaneLevelCritical~0)) .cse3))) [2020-07-21 15:40:23,256 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-07-21 15:40:23,257 INFO L268 CegarLoopResult]: For program point L588(lines 588 605) no Hoare annotation was computed. [2020-07-21 15:40:23,257 INFO L268 CegarLoopResult]: For program point waterRiseEXIT(lines 875 886) no Hoare annotation was computed. [2020-07-21 15:40:23,257 INFO L268 CegarLoopResult]: For program point L879-1(lines 875 886) no Hoare annotation was computed. [2020-07-21 15:40:23,257 INFO L264 CegarLoopResult]: At program point waterRiseENTRY(lines 875 886) the Hoare annotation is: (let ((.cse1 (<= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse2 (not (= 0 ~methaneLevelCritical~0))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse3 (not (= 0 ~pumpRunning~0))) (.cse4 (not (<= 1 |old(~waterLevel~0)|))) (.cse5 (and (<= ~waterLevel~0 |old(~waterLevel~0)|) .cse1))) (and (or (not (<= |old(~waterLevel~0)| 1)) .cse0 (and (<= ~waterLevel~0 1) .cse1) .cse2 .cse3 .cse4) (or .cse0 .cse2 (not (<= 2 |old(~waterLevel~0)|)) .cse5) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse3 .cse4 .cse5)))) [2020-07-21 15:40:23,257 INFO L268 CegarLoopResult]: For program point __automaton_failFINAL(lines 964 971) no Hoare annotation was computed. [2020-07-21 15:40:23,257 INFO L268 CegarLoopResult]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 968) no Hoare annotation was computed. [2020-07-21 15:40:23,257 INFO L271 CegarLoopResult]: At program point __automaton_failENTRY(lines 964 971) the Hoare annotation is: true [2020-07-21 15:40:23,257 INFO L268 CegarLoopResult]: For program point __automaton_failEXIT(lines 964 971) no Hoare annotation was computed. [2020-07-21 15:40:23,258 INFO L271 CegarLoopResult]: At program point __utac_acc__Specification1_spec__1ENTRY(lines 43 67) the Hoare annotation is: true [2020-07-21 15:40:23,258 INFO L264 CegarLoopResult]: At program point L57(line 57) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse3 (not (= 0 ~methaneLevelCritical~0))) (.cse2 (not (= 0 ~pumpRunning~0)))) (and (or .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0)) .cse2) (or .cse1 .cse3 (not (<= 2 ~waterLevel~0))) (or .cse0 .cse1 .cse3 .cse2))) [2020-07-21 15:40:23,258 INFO L268 CegarLoopResult]: For program point __utac_acc__Specification1_spec__1EXIT(lines 43 67) no Hoare annotation was computed. [2020-07-21 15:40:23,258 INFO L268 CegarLoopResult]: For program point L55(lines 55 61) no Hoare annotation was computed. [2020-07-21 15:40:23,258 INFO L264 CegarLoopResult]: At program point L53(line 53) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (= 0 ~methaneLevelCritical~0)))) (and (or .cse0 .cse1 (not (<= 2 ~waterLevel~0))) (or (not (<= 1 ~waterLevel~0)) .cse0 .cse1 (not (= 0 ~pumpRunning~0))))) [2020-07-21 15:40:23,258 INFO L268 CegarLoopResult]: For program point L53-1(line 53) no Hoare annotation was computed. [2020-07-21 15:40:23,258 INFO L268 CegarLoopResult]: For program point L51(lines 51 64) no Hoare annotation was computed. [2020-07-21 15:40:23,258 INFO L268 CegarLoopResult]: For program point L51-1(lines 43 67) no Hoare annotation was computed. [2020-07-21 15:40:23,259 INFO L271 CegarLoopResult]: At program point L49(line 49) the Hoare annotation is: true [2020-07-21 15:40:23,259 INFO L268 CegarLoopResult]: For program point L49-1(line 49) no Hoare annotation was computed. [2020-07-21 15:40:23,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 03:40:23 BoogieIcfgContainer [2020-07-21 15:40:23,276 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 15:40:23,277 INFO L168 Benchmark]: Toolchain (without parser) took 21897.82 ms. Allocated memory was 139.5 MB in the beginning and 479.2 MB in the end (delta: 339.7 MB). Free memory was 103.7 MB in the beginning and 280.9 MB in the end (delta: -177.2 MB). Peak memory consumption was 323.0 MB. Max. memory is 7.1 GB. [2020-07-21 15:40:23,278 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 139.5 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 15:40:23,279 INFO L168 Benchmark]: CACSL2BoogieTranslator took 696.25 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 103.2 MB in the beginning and 171.6 MB in the end (delta: -68.4 MB). Peak memory consumption was 27.7 MB. Max. memory is 7.1 GB. [2020-07-21 15:40:23,279 INFO L168 Benchmark]: Boogie Preprocessor took 86.87 ms. Allocated memory is still 203.9 MB. Free memory was 171.6 MB in the beginning and 167.5 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-07-21 15:40:23,280 INFO L168 Benchmark]: RCFGBuilder took 1297.84 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 193.3 MB in the end (delta: -25.7 MB). Peak memory consumption was 82.0 MB. Max. memory is 7.1 GB. [2020-07-21 15:40:23,281 INFO L168 Benchmark]: TraceAbstraction took 19809.35 ms. Allocated memory was 237.0 MB in the beginning and 479.2 MB in the end (delta: 242.2 MB). Free memory was 193.3 MB in the beginning and 280.9 MB in the end (delta: -87.6 MB). Peak memory consumption was 315.1 MB. Max. memory is 7.1 GB. [2020-07-21 15:40:23,284 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 139.5 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 696.25 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 103.2 MB in the beginning and 171.6 MB in the end (delta: -68.4 MB). Peak memory consumption was 27.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 86.87 ms. Allocated memory is still 203.9 MB. Free memory was 171.6 MB in the beginning and 167.5 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1297.84 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 193.3 MB in the end (delta: -25.7 MB). Peak memory consumption was 82.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 19809.35 ms. Allocated memory was 237.0 MB in the beginning and 479.2 MB in the end (delta: 242.2 MB). Free memory was 193.3 MB in the beginning and 280.9 MB in the end (delta: -87.6 MB). Peak memory consumption was 315.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 968]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 765]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 487]: Loop Invariant Derived loop invariant: ((((((!(\old(waterLevel) <= 1) || !(1 <= systemActive)) || (((0 == methaneLevelCritical && 1 <= waterLevel) && 0 == pumpRunning) && splverifierCounter <= 0)) || !(0 == \old(pumpRunning))) || !(\old(methaneLevelCritical) == 0)) || (((1 <= methaneLevelCritical && 1 <= waterLevel) && 0 == pumpRunning) && splverifierCounter <= 0)) || ((0 == methaneLevelCritical && 2 <= waterLevel) && splverifierCounter <= 0)) || !(1 <= \old(waterLevel)) - InvariantResult [Line: 486]: Loop Invariant Derived loop invariant: (((!(\old(waterLevel) <= 1) || !(0 == \old(pumpRunning))) || !(\old(methaneLevelCritical) == 0)) || !(1 <= \old(waterLevel))) || !(1 <= systemActive) - InvariantResult [Line: 775]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 242 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 13.2s, OverallIterations: 12, TraceHistogramMax: 3, AutomataDifference: 5.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2038 SDtfs, 1353 SDslu, 4418 SDs, 0 SdLazy, 2825 SolverSat, 555 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1547 GetRequests, 1468 SyntacticMatches, 8 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1252occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 12 MinimizatonAttempts, 373 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 63 LocationsWithAnnotation, 2620 PreInvPairs, 2709 NumberOfFragments, 1925 HoareAnnotationTreeSize, 2620 FomulaSimplifications, 1910 FormulaSimplificationTreeSizeReduction, 1.4s HoareSimplificationTime, 63 FomulaSimplificationsInter, 13637 FormulaSimplificationTreeSizeReductionInter, 4.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 2.4s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 1380 NumberOfCodeBlocks, 1230 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 1518 ConstructedInterpolants, 0 QuantifiedInterpolants, 322206 SizeOfPredicates, 30 NumberOfNonLiveVariables, 9228 ConjunctsInSsa, 115 ConjunctsInUnsatCore, 13 InterpolantComputations, 12 PerfectInterpolantSequences, 278/279 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...