/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_VARIABLES --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product54.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 16:23:37,441 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 16:23:37,443 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 16:23:37,457 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 16:23:37,457 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 16:23:37,458 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 16:23:37,460 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 16:23:37,462 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 16:23:37,464 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 16:23:37,465 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 16:23:37,466 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 16:23:37,467 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 16:23:37,467 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 16:23:37,468 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 16:23:37,470 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 16:23:37,471 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 16:23:37,472 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 16:23:37,473 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 16:23:37,475 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 16:23:37,477 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 16:23:37,479 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 16:23:37,480 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 16:23:37,482 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 16:23:37,483 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 16:23:37,486 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-20 16:23:37,486 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-20 16:23:37,487 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-20 16:23:37,488 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-20 16:23:37,488 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-20 16:23:37,489 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-20 16:23:37,490 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-20 16:23:37,491 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-20 16:23:37,492 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-20 16:23:37,493 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-20 16:23:37,494 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-20 16:23:37,494 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-20 16:23:37,495 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-20 16:23:37,495 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-20 16:23:37,496 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 16:23:37,497 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 16:23:37,497 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 16:23:37,498 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-20 16:23:37,514 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 16:23:37,514 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 16:23:37,516 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 16:23:37,516 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 16:23:37,516 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 16:23:37,516 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 16:23:37,517 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 16:23:37,517 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 16:23:37,517 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 16:23:37,517 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 16:23:37,517 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 16:23:37,518 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 16:23:37,518 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 16:23:37,518 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 16:23:37,518 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 16:23:37,518 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 16:23:37,518 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 16:23:37,519 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 16:23:37,519 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 16:23:37,519 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 16:23:37,519 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 16:23:37,519 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 16:23:37,520 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 16:23:37,520 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 16:23:37,522 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 16:23:37,522 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 16:23:37,522 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:23:37,523 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 16:23:37,523 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 16:23:37,523 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_VARIABLES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-20 16:23:37,817 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 16:23:37,835 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 16:23:37,838 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 16:23:37,840 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 16:23:37,842 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 16:23:37,844 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product54.cil.c [2020-07-20 16:23:37,927 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64d90d8c3/f592198e81504cd389c39608a8feb29c/FLAGcd794d8ae [2020-07-20 16:23:38,486 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 16:23:38,487 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product54.cil.c [2020-07-20 16:23:38,502 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64d90d8c3/f592198e81504cd389c39608a8feb29c/FLAGcd794d8ae [2020-07-20 16:23:38,757 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64d90d8c3/f592198e81504cd389c39608a8feb29c [2020-07-20 16:23:38,766 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 16:23:38,768 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 16:23:38,770 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 16:23:38,770 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 16:23:38,774 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 16:23:38,775 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 04:23:38" (1/1) ... [2020-07-20 16:23:38,778 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b3607cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:23:38, skipping insertion in model container [2020-07-20 16:23:38,778 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 04:23:38" (1/1) ... [2020-07-20 16:23:38,786 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 16:23:38,836 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 16:23:39,156 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 16:23:39,272 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 16:23:39,414 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 16:23:39,453 INFO L208 MainTranslator]: Completed translation [2020-07-20 16:23:39,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:23:39 WrapperNode [2020-07-20 16:23:39,454 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 16:23:39,455 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 16:23:39,455 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 16:23:39,455 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 16:23:39,467 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:23:39" (1/1) ... [2020-07-20 16:23:39,467 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:23:39" (1/1) ... [2020-07-20 16:23:39,487 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:23:39" (1/1) ... [2020-07-20 16:23:39,488 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:23:39" (1/1) ... [2020-07-20 16:23:39,517 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:23:39" (1/1) ... [2020-07-20 16:23:39,528 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:23:39" (1/1) ... [2020-07-20 16:23:39,534 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:23:39" (1/1) ... [2020-07-20 16:23:39,542 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 16:23:39,543 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 16:23:39,543 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 16:23:39,543 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 16:23:39,544 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:23:39" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 16:23:39,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 16:23:39,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 16:23:39,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-20 16:23:39,620 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-20 16:23:39,620 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-20 16:23:39,621 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-20 16:23:39,621 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-20 16:23:39,621 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 16:23:39,621 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-07-20 16:23:39,621 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-07-20 16:23:39,621 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-20 16:23:39,622 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-20 16:23:39,622 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-20 16:23:39,622 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-20 16:23:39,622 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-20 16:23:39,622 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-20 16:23:39,622 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-20 16:23:39,623 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-20 16:23:39,623 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-20 16:23:39,623 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-07-20 16:23:39,623 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-07-20 16:23:39,623 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-20 16:23:39,624 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-20 16:23:39,624 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-20 16:23:39,624 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-20 16:23:39,624 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-20 16:23:39,624 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-20 16:23:39,624 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-20 16:23:39,625 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-07-20 16:23:39,625 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-07-20 16:23:39,625 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-20 16:23:39,625 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-20 16:23:39,625 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-20 16:23:39,626 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-20 16:23:39,626 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-20 16:23:39,626 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-20 16:23:39,626 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-20 16:23:39,626 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-07-20 16:23:39,626 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-20 16:23:39,627 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-20 16:23:39,627 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-20 16:23:39,627 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-20 16:23:39,627 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-20 16:23:39,627 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 16:23:39,627 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 16:23:39,628 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-20 16:23:39,628 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-20 16:23:39,628 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-20 16:23:39,628 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-20 16:23:39,628 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-20 16:23:39,628 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-20 16:23:39,628 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-20 16:23:39,629 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-20 16:23:39,629 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-07-20 16:23:39,629 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-20 16:23:39,629 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-20 16:23:39,629 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-20 16:23:39,629 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-20 16:23:39,630 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-20 16:23:39,630 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 16:23:39,630 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-20 16:23:39,630 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-20 16:23:39,630 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-20 16:23:39,631 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-07-20 16:23:39,631 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-20 16:23:39,631 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-20 16:23:39,631 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-20 16:23:39,631 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-20 16:23:39,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-20 16:23:39,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-20 16:23:39,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-20 16:23:39,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-20 16:23:39,632 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-20 16:23:39,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-20 16:23:39,632 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-20 16:23:39,632 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-20 16:23:39,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-20 16:23:39,633 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-20 16:23:39,633 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-20 16:23:39,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-20 16:23:39,633 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-20 16:23:39,633 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-07-20 16:23:39,634 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-20 16:23:39,634 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-20 16:23:39,634 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-20 16:23:39,634 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-07-20 16:23:39,634 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-20 16:23:39,634 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-20 16:23:39,635 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-20 16:23:39,635 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-20 16:23:39,635 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-20 16:23:39,635 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-07-20 16:23:39,635 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-07-20 16:23:39,635 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-07-20 16:23:39,636 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-20 16:23:39,636 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-20 16:23:39,636 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-20 16:23:39,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 16:23:39,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-20 16:23:39,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 16:23:40,882 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 16:23:40,882 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-20 16:23:40,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 04:23:40 BoogieIcfgContainer [2020-07-20 16:23:40,888 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 16:23:40,889 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 16:23:40,889 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 16:23:40,893 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 16:23:40,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 04:23:38" (1/3) ... [2020-07-20 16:23:40,894 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cba8849 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 04:23:40, skipping insertion in model container [2020-07-20 16:23:40,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:23:39" (2/3) ... [2020-07-20 16:23:40,895 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cba8849 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 04:23:40, skipping insertion in model container [2020-07-20 16:23:40,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 04:23:40" (3/3) ... [2020-07-20 16:23:40,897 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product54.cil.c [2020-07-20 16:23:40,908 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 16:23:40,917 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 16:23:40,933 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 16:23:40,960 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 16:23:40,961 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 16:23:40,961 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 16:23:40,961 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 16:23:40,961 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 16:23:40,962 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 16:23:40,962 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 16:23:40,962 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 16:23:40,988 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states. [2020-07-20 16:23:40,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-20 16:23:40,999 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:23:41,000 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:23:41,001 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:23:41,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:23:41,007 INFO L82 PathProgramCache]: Analyzing trace with hash 1445624956, now seen corresponding path program 1 times [2020-07-20 16:23:41,017 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:23:41,017 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [560277561] [2020-07-20 16:23:41,018 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:23:41,555 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 16:23:41,555 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:23:41,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 663 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-20 16:23:41,572 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:23:41,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 16:23:41,602 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:23:41,603 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [560277561] [2020-07-20 16:23:41,604 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:23:41,604 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-20 16:23:41,605 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446643773] [2020-07-20 16:23:41,610 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-20 16:23:41,611 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:23:41,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-20 16:23:41,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-20 16:23:41,628 INFO L87 Difference]: Start difference. First operand 195 states. Second operand 2 states. [2020-07-20 16:23:41,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:23:41,674 INFO L93 Difference]: Finished difference Result 300 states and 373 transitions. [2020-07-20 16:23:41,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-20 16:23:41,679 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2020-07-20 16:23:41,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:23:41,698 INFO L225 Difference]: With dead ends: 300 [2020-07-20 16:23:41,699 INFO L226 Difference]: Without dead ends: 152 [2020-07-20 16:23:41,706 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-20 16:23:41,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2020-07-20 16:23:41,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2020-07-20 16:23:41,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2020-07-20 16:23:41,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 180 transitions. [2020-07-20 16:23:41,819 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 180 transitions. Word has length 51 [2020-07-20 16:23:41,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:23:41,822 INFO L479 AbstractCegarLoop]: Abstraction has 152 states and 180 transitions. [2020-07-20 16:23:41,822 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-20 16:23:41,822 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 180 transitions. [2020-07-20 16:23:41,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-20 16:23:41,826 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:23:41,827 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:23:42,035 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:23:42,036 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:23:42,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:23:42,036 INFO L82 PathProgramCache]: Analyzing trace with hash 313505704, now seen corresponding path program 1 times [2020-07-20 16:23:42,036 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:23:42,037 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1816949219] [2020-07-20 16:23:42,037 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:23:42,576 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 16:23:42,577 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:23:42,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 662 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-20 16:23:42,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:23:42,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 16:23:42,627 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:23:42,627 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1816949219] [2020-07-20 16:23:42,628 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:23:42,628 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 16:23:42,628 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015160268] [2020-07-20 16:23:42,630 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 16:23:42,631 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:23:42,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 16:23:42,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 16:23:42,631 INFO L87 Difference]: Start difference. First operand 152 states and 180 transitions. Second operand 3 states. [2020-07-20 16:23:42,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:23:42,659 INFO L93 Difference]: Finished difference Result 245 states and 291 transitions. [2020-07-20 16:23:42,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 16:23:42,660 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-07-20 16:23:42,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:23:42,663 INFO L225 Difference]: With dead ends: 245 [2020-07-20 16:23:42,663 INFO L226 Difference]: Without dead ends: 143 [2020-07-20 16:23:42,665 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 16:23:42,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2020-07-20 16:23:42,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2020-07-20 16:23:42,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2020-07-20 16:23:42,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 168 transitions. [2020-07-20 16:23:42,681 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 168 transitions. Word has length 52 [2020-07-20 16:23:42,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:23:42,682 INFO L479 AbstractCegarLoop]: Abstraction has 143 states and 168 transitions. [2020-07-20 16:23:42,682 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 16:23:42,682 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 168 transitions. [2020-07-20 16:23:42,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-07-20 16:23:42,686 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:23:42,686 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] [2020-07-20 16:23:42,900 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:23:42,901 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:23:42,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:23:42,902 INFO L82 PathProgramCache]: Analyzing trace with hash -1935207340, now seen corresponding path program 1 times [2020-07-20 16:23:42,903 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:23:42,903 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2028053914] [2020-07-20 16:23:42,904 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:23:43,309 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 16:23:43,309 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:23:43,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 696 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-20 16:23:43,320 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:23:43,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 16:23:43,347 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:23:43,347 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2028053914] [2020-07-20 16:23:43,347 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:23:43,348 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 16:23:43,348 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993382971] [2020-07-20 16:23:43,348 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 16:23:43,349 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:23:43,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 16:23:43,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 16:23:43,349 INFO L87 Difference]: Start difference. First operand 143 states and 168 transitions. Second operand 3 states. [2020-07-20 16:23:43,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:23:43,369 INFO L93 Difference]: Finished difference Result 258 states and 309 transitions. [2020-07-20 16:23:43,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 16:23:43,369 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 57 [2020-07-20 16:23:43,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:23:43,371 INFO L225 Difference]: With dead ends: 258 [2020-07-20 16:23:43,371 INFO L226 Difference]: Without dead ends: 143 [2020-07-20 16:23:43,373 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 16:23:43,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2020-07-20 16:23:43,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2020-07-20 16:23:43,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2020-07-20 16:23:43,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 167 transitions. [2020-07-20 16:23:43,388 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 167 transitions. Word has length 57 [2020-07-20 16:23:43,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:23:43,389 INFO L479 AbstractCegarLoop]: Abstraction has 143 states and 167 transitions. [2020-07-20 16:23:43,389 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 16:23:43,389 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 167 transitions. [2020-07-20 16:23:43,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-07-20 16:23:43,392 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:23:43,392 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:23:43,605 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:23:43,606 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:23:43,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:23:43,607 INFO L82 PathProgramCache]: Analyzing trace with hash 979214064, now seen corresponding path program 1 times [2020-07-20 16:23:43,607 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:23:43,608 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [97909277] [2020-07-20 16:23:43,609 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:23:44,104 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 16:23:44,105 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:23:44,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 701 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 16:23:44,115 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:23:44,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 16:23:44,163 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:23:44,163 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [97909277] [2020-07-20 16:23:44,163 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:23:44,163 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 16:23:44,164 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774431649] [2020-07-20 16:23:44,164 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 16:23:44,165 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:23:44,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 16:23:44,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-20 16:23:44,165 INFO L87 Difference]: Start difference. First operand 143 states and 167 transitions. Second operand 6 states. [2020-07-20 16:23:44,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:23:44,812 INFO L93 Difference]: Finished difference Result 348 states and 425 transitions. [2020-07-20 16:23:44,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 16:23:44,813 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 75 [2020-07-20 16:23:44,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:23:44,824 INFO L225 Difference]: With dead ends: 348 [2020-07-20 16:23:44,824 INFO L226 Difference]: Without dead ends: 233 [2020-07-20 16:23:44,826 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-20 16:23:44,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2020-07-20 16:23:44,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 217. [2020-07-20 16:23:44,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-07-20 16:23:44,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 245 transitions. [2020-07-20 16:23:44,878 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 245 transitions. Word has length 75 [2020-07-20 16:23:44,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:23:44,879 INFO L479 AbstractCegarLoop]: Abstraction has 217 states and 245 transitions. [2020-07-20 16:23:44,879 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 16:23:44,879 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 245 transitions. [2020-07-20 16:23:44,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-07-20 16:23:44,885 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:23:44,885 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:23:45,086 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:23:45,087 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:23:45,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:23:45,088 INFO L82 PathProgramCache]: Analyzing trace with hash -919866488, now seen corresponding path program 1 times [2020-07-20 16:23:45,088 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:23:45,089 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2060907236] [2020-07-20 16:23:45,089 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:23:45,523 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 16:23:45,523 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:23:45,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 766 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 16:23:45,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:23:45,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 16:23:45,566 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:23:45,566 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2060907236] [2020-07-20 16:23:45,566 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:23:45,567 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 16:23:45,567 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400875339] [2020-07-20 16:23:45,568 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 16:23:45,568 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:23:45,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 16:23:45,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-20 16:23:45,568 INFO L87 Difference]: Start difference. First operand 217 states and 245 transitions. Second operand 6 states. [2020-07-20 16:23:45,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:23:45,784 INFO L93 Difference]: Finished difference Result 409 states and 470 transitions. [2020-07-20 16:23:45,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 16:23:45,785 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 89 [2020-07-20 16:23:45,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:23:45,789 INFO L225 Difference]: With dead ends: 409 [2020-07-20 16:23:45,789 INFO L226 Difference]: Without dead ends: 220 [2020-07-20 16:23:45,790 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-20 16:23:45,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2020-07-20 16:23:45,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 216. [2020-07-20 16:23:45,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 216 states. [2020-07-20 16:23:45,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 242 transitions. [2020-07-20 16:23:45,810 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 242 transitions. Word has length 89 [2020-07-20 16:23:45,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:23:45,810 INFO L479 AbstractCegarLoop]: Abstraction has 216 states and 242 transitions. [2020-07-20 16:23:45,811 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 16:23:45,811 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 242 transitions. [2020-07-20 16:23:45,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-07-20 16:23:45,812 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:23:45,812 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:23:46,021 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:23:46,022 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:23:46,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:23:46,023 INFO L82 PathProgramCache]: Analyzing trace with hash -1146327697, now seen corresponding path program 1 times [2020-07-20 16:23:46,024 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:23:46,024 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [899941065] [2020-07-20 16:23:46,025 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:23:46,378 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 16:23:46,378 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:23:46,383 INFO L263 TraceCheckSpWp]: Trace formula consists of 733 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 16:23:46,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:23:46,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 16:23:46,425 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:23:46,425 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [899941065] [2020-07-20 16:23:46,426 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:23:46,426 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 16:23:46,426 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863229677] [2020-07-20 16:23:46,427 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 16:23:46,427 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:23:46,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 16:23:46,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-20 16:23:46,428 INFO L87 Difference]: Start difference. First operand 216 states and 242 transitions. Second operand 6 states. [2020-07-20 16:23:46,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:23:46,473 INFO L93 Difference]: Finished difference Result 409 states and 466 transitions. [2020-07-20 16:23:46,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 16:23:46,474 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 90 [2020-07-20 16:23:46,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:23:46,476 INFO L225 Difference]: With dead ends: 409 [2020-07-20 16:23:46,476 INFO L226 Difference]: Without dead ends: 221 [2020-07-20 16:23:46,478 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-20 16:23:46,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2020-07-20 16:23:46,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 221. [2020-07-20 16:23:46,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221 states. [2020-07-20 16:23:46,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 247 transitions. [2020-07-20 16:23:46,496 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 247 transitions. Word has length 90 [2020-07-20 16:23:46,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:23:46,496 INFO L479 AbstractCegarLoop]: Abstraction has 221 states and 247 transitions. [2020-07-20 16:23:46,497 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 16:23:46,497 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 247 transitions. [2020-07-20 16:23:46,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-07-20 16:23:46,498 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:23:46,498 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:23:46,711 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:23:46,712 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:23:46,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:23:46,713 INFO L82 PathProgramCache]: Analyzing trace with hash -1218714255, now seen corresponding path program 1 times [2020-07-20 16:23:46,714 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:23:46,714 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [212126911] [2020-07-20 16:23:46,715 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:23:46,894 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-20 16:23:46,895 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:23:46,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 580 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-20 16:23:46,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:23:46,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 16:23:46,934 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:23:46,935 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [212126911] [2020-07-20 16:23:46,935 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:23:46,935 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 16:23:46,935 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626072494] [2020-07-20 16:23:46,936 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 16:23:46,936 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:23:46,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 16:23:46,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 16:23:46,937 INFO L87 Difference]: Start difference. First operand 221 states and 247 transitions. Second operand 5 states. [2020-07-20 16:23:46,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:23:46,960 INFO L93 Difference]: Finished difference Result 421 states and 483 transitions. [2020-07-20 16:23:46,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 16:23:46,960 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 90 [2020-07-20 16:23:46,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:23:46,963 INFO L225 Difference]: With dead ends: 421 [2020-07-20 16:23:46,963 INFO L226 Difference]: Without dead ends: 228 [2020-07-20 16:23:46,964 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 16:23:46,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2020-07-20 16:23:46,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 225. [2020-07-20 16:23:46,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2020-07-20 16:23:46,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 251 transitions. [2020-07-20 16:23:46,979 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 251 transitions. Word has length 90 [2020-07-20 16:23:46,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:23:46,979 INFO L479 AbstractCegarLoop]: Abstraction has 225 states and 251 transitions. [2020-07-20 16:23:46,980 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 16:23:46,980 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 251 transitions. [2020-07-20 16:23:46,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-07-20 16:23:46,981 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:23:46,981 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:23:47,194 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:23:47,195 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:23:47,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:23:47,196 INFO L82 PathProgramCache]: Analyzing trace with hash -888948494, now seen corresponding path program 1 times [2020-07-20 16:23:47,196 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:23:47,197 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1401016903] [2020-07-20 16:23:47,197 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:23:47,489 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 16:23:47,489 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:23:47,493 INFO L263 TraceCheckSpWp]: Trace formula consists of 734 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-20 16:23:47,496 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:23:47,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 16:23:47,527 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:23:47,527 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1401016903] [2020-07-20 16:23:47,527 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:23:47,527 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 16:23:47,528 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431157527] [2020-07-20 16:23:47,529 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 16:23:47,529 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:23:47,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 16:23:47,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 16:23:47,530 INFO L87 Difference]: Start difference. First operand 225 states and 251 transitions. Second operand 3 states. [2020-07-20 16:23:47,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:23:47,566 INFO L93 Difference]: Finished difference Result 589 states and 688 transitions. [2020-07-20 16:23:47,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 16:23:47,566 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 90 [2020-07-20 16:23:47,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:23:47,570 INFO L225 Difference]: With dead ends: 589 [2020-07-20 16:23:47,570 INFO L226 Difference]: Without dead ends: 392 [2020-07-20 16:23:47,571 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 87 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 16:23:47,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2020-07-20 16:23:47,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 389. [2020-07-20 16:23:47,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 389 states. [2020-07-20 16:23:47,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 447 transitions. [2020-07-20 16:23:47,599 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 447 transitions. Word has length 90 [2020-07-20 16:23:47,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:23:47,599 INFO L479 AbstractCegarLoop]: Abstraction has 389 states and 447 transitions. [2020-07-20 16:23:47,599 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 16:23:47,599 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 447 transitions. [2020-07-20 16:23:47,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-07-20 16:23:47,601 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:23:47,601 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:23:47,816 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:23:47,817 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:23:47,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:23:47,818 INFO L82 PathProgramCache]: Analyzing trace with hash 487649452, now seen corresponding path program 1 times [2020-07-20 16:23:47,818 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:23:47,819 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1492781790] [2020-07-20 16:23:47,819 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:23:48,161 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 16:23:48,161 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:23:48,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 779 conjuncts, 23 conjunts are in the unsatisfiable core [2020-07-20 16:23:48,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:23:48,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 16:23:48,201 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:23:48,201 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1492781790] [2020-07-20 16:23:48,201 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:23:48,202 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 16:23:48,202 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803917698] [2020-07-20 16:23:48,202 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 16:23:48,203 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:23:48,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 16:23:48,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-20 16:23:48,203 INFO L87 Difference]: Start difference. First operand 389 states and 447 transitions. Second operand 6 states. [2020-07-20 16:23:48,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:23:48,471 INFO L93 Difference]: Finished difference Result 1090 states and 1289 transitions. [2020-07-20 16:23:48,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 16:23:48,471 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 94 [2020-07-20 16:23:48,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:23:48,477 INFO L225 Difference]: With dead ends: 1090 [2020-07-20 16:23:48,477 INFO L226 Difference]: Without dead ends: 729 [2020-07-20 16:23:48,479 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-20 16:23:48,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729 states. [2020-07-20 16:23:48,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 721. [2020-07-20 16:23:48,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 721 states. [2020-07-20 16:23:48,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 830 transitions. [2020-07-20 16:23:48,522 INFO L78 Accepts]: Start accepts. Automaton has 721 states and 830 transitions. Word has length 94 [2020-07-20 16:23:48,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:23:48,522 INFO L479 AbstractCegarLoop]: Abstraction has 721 states and 830 transitions. [2020-07-20 16:23:48,523 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 16:23:48,523 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 830 transitions. [2020-07-20 16:23:48,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-07-20 16:23:48,525 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:23:48,525 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:23:48,739 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:23:48,740 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:23:48,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:23:48,741 INFO L82 PathProgramCache]: Analyzing trace with hash -1149612728, now seen corresponding path program 1 times [2020-07-20 16:23:48,741 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:23:48,742 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2018696112] [2020-07-20 16:23:48,742 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:23:49,139 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 16:23:49,139 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:23:49,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 789 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-20 16:23:49,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:23:49,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 16:23:49,170 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:23:49,170 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2018696112] [2020-07-20 16:23:49,170 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:23:49,170 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 16:23:49,171 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997743225] [2020-07-20 16:23:49,171 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 16:23:49,171 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:23:49,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 16:23:49,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 16:23:49,172 INFO L87 Difference]: Start difference. First operand 721 states and 830 transitions. Second operand 3 states. [2020-07-20 16:23:49,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:23:49,237 INFO L93 Difference]: Finished difference Result 1102 states and 1287 transitions. [2020-07-20 16:23:49,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 16:23:49,238 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 98 [2020-07-20 16:23:49,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:23:49,245 INFO L225 Difference]: With dead ends: 1102 [2020-07-20 16:23:49,245 INFO L226 Difference]: Without dead ends: 1099 [2020-07-20 16:23:49,246 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 16:23:49,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1099 states. [2020-07-20 16:23:49,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1099 to 915. [2020-07-20 16:23:49,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 915 states. [2020-07-20 16:23:49,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 915 states to 915 states and 1068 transitions. [2020-07-20 16:23:49,342 INFO L78 Accepts]: Start accepts. Automaton has 915 states and 1068 transitions. Word has length 98 [2020-07-20 16:23:49,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:23:49,343 INFO L479 AbstractCegarLoop]: Abstraction has 915 states and 1068 transitions. [2020-07-20 16:23:49,343 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 16:23:49,343 INFO L276 IsEmpty]: Start isEmpty. Operand 915 states and 1068 transitions. [2020-07-20 16:23:49,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-07-20 16:23:49,353 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:23:49,354 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, 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] [2020-07-20 16:23:49,568 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:23:49,569 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:23:49,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:23:49,570 INFO L82 PathProgramCache]: Analyzing trace with hash 1330390775, now seen corresponding path program 1 times [2020-07-20 16:23:49,570 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:23:49,571 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1448943341] [2020-07-20 16:23:49,571 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:23:49,858 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 16:23:49,858 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:23:49,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 899 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 16:23:49,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:23:49,914 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-20 16:23:49,914 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:23:49,915 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1448943341] [2020-07-20 16:23:49,915 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:23:49,915 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 16:23:49,915 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975533580] [2020-07-20 16:23:49,916 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 16:23:49,916 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:23:49,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 16:23:49,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-20 16:23:49,917 INFO L87 Difference]: Start difference. First operand 915 states and 1068 transitions. Second operand 5 states. [2020-07-20 16:23:50,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:23:50,748 INFO L93 Difference]: Finished difference Result 2349 states and 2881 transitions. [2020-07-20 16:23:50,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 16:23:50,748 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 175 [2020-07-20 16:23:50,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:23:50,761 INFO L225 Difference]: With dead ends: 2349 [2020-07-20 16:23:50,762 INFO L226 Difference]: Without dead ends: 1462 [2020-07-20 16:23:50,765 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 16:23:50,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1462 states. [2020-07-20 16:23:50,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1462 to 1352. [2020-07-20 16:23:50,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1352 states. [2020-07-20 16:23:50,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1352 states to 1352 states and 1593 transitions. [2020-07-20 16:23:50,853 INFO L78 Accepts]: Start accepts. Automaton has 1352 states and 1593 transitions. Word has length 175 [2020-07-20 16:23:50,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:23:50,855 INFO L479 AbstractCegarLoop]: Abstraction has 1352 states and 1593 transitions. [2020-07-20 16:23:50,855 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 16:23:50,855 INFO L276 IsEmpty]: Start isEmpty. Operand 1352 states and 1593 transitions. [2020-07-20 16:23:50,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-07-20 16:23:50,859 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:23:50,859 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, 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] [2020-07-20 16:23:51,072 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:23:51,073 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:23:51,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:23:51,073 INFO L82 PathProgramCache]: Analyzing trace with hash 1747787381, now seen corresponding path program 1 times [2020-07-20 16:23:51,074 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:23:51,074 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [911328340] [2020-07-20 16:23:51,074 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:23:51,486 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 16:23:51,486 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:23:51,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 901 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-20 16:23:51,497 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:23:51,595 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 43 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 16:23:51,596 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 16:23:51,837 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-07-20 16:23:51,838 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 16:23:51,903 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-07-20 16:23:51,903 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 16:23:51,919 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-07-20 16:23:51,920 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 16:23:52,264 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 22 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-07-20 16:23:52,265 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [911328340] [2020-07-20 16:23:52,265 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 16:23:52,265 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 16 [2020-07-20 16:23:52,266 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068352222] [2020-07-20 16:23:52,266 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-07-20 16:23:52,267 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:23:52,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-07-20 16:23:52,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2020-07-20 16:23:52,267 INFO L87 Difference]: Start difference. First operand 1352 states and 1593 transitions. Second operand 16 states. [2020-07-20 16:23:54,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:23:54,970 INFO L93 Difference]: Finished difference Result 4503 states and 5760 transitions. [2020-07-20 16:23:54,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-07-20 16:23:54,971 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 175 [2020-07-20 16:23:54,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:23:54,993 INFO L225 Difference]: With dead ends: 4503 [2020-07-20 16:23:54,993 INFO L226 Difference]: Without dead ends: 3179 [2020-07-20 16:23:55,002 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 338 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=175, Invalid=581, Unknown=0, NotChecked=0, Total=756 [2020-07-20 16:23:55,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3179 states. [2020-07-20 16:23:55,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3179 to 2614. [2020-07-20 16:23:55,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2614 states. [2020-07-20 16:23:55,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2614 states to 2614 states and 3083 transitions. [2020-07-20 16:23:55,249 INFO L78 Accepts]: Start accepts. Automaton has 2614 states and 3083 transitions. Word has length 175 [2020-07-20 16:23:55,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:23:55,249 INFO L479 AbstractCegarLoop]: Abstraction has 2614 states and 3083 transitions. [2020-07-20 16:23:55,249 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-07-20 16:23:55,250 INFO L276 IsEmpty]: Start isEmpty. Operand 2614 states and 3083 transitions. [2020-07-20 16:23:55,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-07-20 16:23:55,254 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:23:55,254 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, 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] [2020-07-20 16:23:55,468 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:23:55,469 INFO L427 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:23:55,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:23:55,469 INFO L82 PathProgramCache]: Analyzing trace with hash 903781879, now seen corresponding path program 1 times [2020-07-20 16:23:55,469 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:23:55,470 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1791269707] [2020-07-20 16:23:55,470 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:23:55,907 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 16:23:55,908 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:23:55,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 979 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-20 16:23:55,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:23:56,013 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-20 16:23:56,014 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:23:56,014 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1791269707] [2020-07-20 16:23:56,014 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:23:56,014 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-20 16:23:56,015 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319850069] [2020-07-20 16:23:56,015 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-20 16:23:56,015 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:23:56,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-20 16:23:56,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-20 16:23:56,016 INFO L87 Difference]: Start difference. First operand 2614 states and 3083 transitions. Second operand 8 states. [2020-07-20 16:23:56,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:23:56,394 INFO L93 Difference]: Finished difference Result 4276 states and 5068 transitions. [2020-07-20 16:23:56,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 16:23:56,394 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 175 [2020-07-20 16:23:56,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:23:56,397 INFO L225 Difference]: With dead ends: 4276 [2020-07-20 16:23:56,397 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 16:23:56,408 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 167 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-20 16:23:56,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 16:23:56,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 16:23:56,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 16:23:56,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 16:23:56,410 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 175 [2020-07-20 16:23:56,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:23:56,410 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 16:23:56,410 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-20 16:23:56,410 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 16:23:56,410 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 16:23:56,623 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:23:56,627 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 16:23:57,590 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 72 [2020-07-20 16:23:58,955 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 26 [2020-07-20 16:23:59,267 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 28 [2020-07-20 16:24:00,471 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 110 DAG size of output: 56 [2020-07-20 16:24:00,826 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 24 [2020-07-20 16:24:01,073 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 29 [2020-07-20 16:24:01,344 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 24 [2020-07-20 16:24:01,548 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 22 [2020-07-20 16:24:01,917 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 27 [2020-07-20 16:24:02,189 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 39 [2020-07-20 16:24:02,337 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 39 [2020-07-20 16:24:03,245 WARN L193 SmtUtils]: Spent 904.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 52 [2020-07-20 16:24:03,391 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 39 [2020-07-20 16:24:03,724 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 27 [2020-07-20 16:24:03,895 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 20 [2020-07-20 16:24:04,395 WARN L193 SmtUtils]: Spent 488.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 48 [2020-07-20 16:24:04,714 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 22 [2020-07-20 16:24:05,228 WARN L193 SmtUtils]: Spent 510.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 38 [2020-07-20 16:24:05,492 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 24 [2020-07-20 16:24:05,827 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 31 [2020-07-20 16:24:06,870 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 107 DAG size of output: 55 [2020-07-20 16:24:07,121 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 39 [2020-07-20 16:24:07,289 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 38 [2020-07-20 16:24:07,516 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 23 [2020-07-20 16:24:07,777 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 27 [2020-07-20 16:24:08,071 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 23 [2020-07-20 16:24:08,412 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 25 [2020-07-20 16:24:08,711 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 25 [2020-07-20 16:24:08,890 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 23 [2020-07-20 16:24:09,181 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 39 [2020-07-20 16:24:09,488 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 25 [2020-07-20 16:24:09,707 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 23 [2020-07-20 16:24:09,991 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 28 [2020-07-20 16:24:10,148 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 20 [2020-07-20 16:24:10,156 INFO L268 CegarLoopResult]: For program point L287(lines 264 288) no Hoare annotation was computed. [2020-07-20 16:24:10,156 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeFINAL(lines 240 295) no Hoare annotation was computed. [2020-07-20 16:24:10,156 INFO L268 CegarLoopResult]: For program point L271(lines 271 275) no Hoare annotation was computed. [2020-07-20 16:24:10,156 INFO L268 CegarLoopResult]: For program point L271-1(lines 271 275) no Hoare annotation was computed. [2020-07-20 16:24:10,157 INFO L268 CegarLoopResult]: For program point L266(line 266) no Hoare annotation was computed. [2020-07-20 16:24:10,157 INFO L268 CegarLoopResult]: For program point L265-2(lines 265 286) no Hoare annotation was computed. [2020-07-20 16:24:10,157 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeEXIT(lines 240 295) no Hoare annotation was computed. [2020-07-20 16:24:10,157 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeENTRY(lines 240 295) no Hoare annotation was computed. [2020-07-20 16:24:10,157 INFO L268 CegarLoopResult]: For program point L322-2(lines 322 347) no Hoare annotation was computed. [2020-07-20 16:24:10,157 INFO L268 CegarLoopResult]: For program point L348(lines 321 349) no Hoare annotation was computed. [2020-07-20 16:24:10,157 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetFINAL(lines 296 355) no Hoare annotation was computed. [2020-07-20 16:24:10,157 INFO L268 CegarLoopResult]: For program point L341(line 341) no Hoare annotation was computed. [2020-07-20 16:24:10,157 INFO L268 CegarLoopResult]: For program point L341-1(line 341) no Hoare annotation was computed. [2020-07-20 16:24:10,158 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetENTRY(lines 296 355) no Hoare annotation was computed. [2020-07-20 16:24:10,158 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetEXIT(lines 296 355) no Hoare annotation was computed. [2020-07-20 16:24:10,158 INFO L268 CegarLoopResult]: For program point L328(lines 328 332) no Hoare annotation was computed. [2020-07-20 16:24:10,158 INFO L268 CegarLoopResult]: For program point L328-1(lines 328 332) no Hoare annotation was computed. [2020-07-20 16:24:10,158 INFO L268 CegarLoopResult]: For program point L323(line 323) no Hoare annotation was computed. [2020-07-20 16:24:10,158 INFO L271 CegarLoopResult]: At program point select_helpersFINAL(lines 981 987) the Hoare annotation is: true [2020-07-20 16:24:10,159 INFO L268 CegarLoopResult]: For program point select_helpersEXIT(lines 981 987) no Hoare annotation was computed. [2020-07-20 16:24:10,159 INFO L268 CegarLoopResult]: For program point valid_productEXIT(lines 988 996) no Hoare annotation was computed. [2020-07-20 16:24:10,159 INFO L271 CegarLoopResult]: At program point valid_productENTRY(lines 988 996) the Hoare annotation is: true [2020-07-20 16:24:10,159 INFO L268 CegarLoopResult]: For program point valid_productFINAL(lines 988 996) no Hoare annotation was computed. [2020-07-20 16:24:10,159 INFO L264 CegarLoopResult]: At program point L129(line 129) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-20 16:24:10,159 INFO L264 CegarLoopResult]: At program point L128(line 128) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-20 16:24:10,159 INFO L264 CegarLoopResult]: At program point L128-1(line 128) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-20 16:24:10,160 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 122 144) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-20 16:24:10,160 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 122 144) no Hoare annotation was computed. [2020-07-20 16:24:10,160 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 122 144) no Hoare annotation was computed. [2020-07-20 16:24:10,160 INFO L264 CegarLoopResult]: At program point L134(line 134) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-20 16:24:10,160 INFO L264 CegarLoopResult]: At program point L134-1(line 134) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-20 16:24:10,161 INFO L268 CegarLoopResult]: For program point L132(lines 132 139) no Hoare annotation was computed. [2020-07-20 16:24:10,161 INFO L268 CegarLoopResult]: For program point L132-1(lines 132 139) no Hoare annotation was computed. [2020-07-20 16:24:10,161 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-20 16:24:10,161 INFO L268 CegarLoopResult]: For program point Specification2EXIT(lines 75 98) no Hoare annotation was computed. [2020-07-20 16:24:10,161 INFO L268 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-07-20 16:24:10,161 INFO L268 CegarLoopResult]: For program point Specification2ENTRY(lines 75 98) no Hoare annotation was computed. [2020-07-20 16:24:10,161 INFO L268 CegarLoopResult]: For program point L92(line 92) no Hoare annotation was computed. [2020-07-20 16:24:10,161 INFO L268 CegarLoopResult]: For program point Specification2FINAL(lines 75 98) no Hoare annotation was computed. [2020-07-20 16:24:10,162 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-20 16:24:10,162 INFO L268 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-07-20 16:24:10,162 INFO L268 CegarLoopResult]: For program point L89(line 89) no Hoare annotation was computed. [2020-07-20 16:24:10,162 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-20 16:24:10,162 INFO L268 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-07-20 16:24:10,162 INFO L268 CegarLoopResult]: For program point L86(line 86) no Hoare annotation was computed. [2020-07-20 16:24:10,162 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-20 16:24:10,162 INFO L268 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-07-20 16:24:10,162 INFO L268 CegarLoopResult]: For program point L83(line 83) no Hoare annotation was computed. [2020-07-20 16:24:10,162 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-20 16:24:10,163 INFO L268 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-07-20 16:24:10,163 INFO L268 CegarLoopResult]: For program point L80(line 80) no Hoare annotation was computed. [2020-07-20 16:24:10,163 INFO L268 CegarLoopResult]: For program point isPumpRunningEXIT(lines 767 775) no Hoare annotation was computed. [2020-07-20 16:24:10,163 INFO L271 CegarLoopResult]: At program point isPumpRunningENTRY(lines 767 775) the Hoare annotation is: true [2020-07-20 16:24:10,163 INFO L268 CegarLoopResult]: For program point isPumpRunningFINAL(lines 767 775) no Hoare annotation was computed. [2020-07-20 16:24:10,163 INFO L271 CegarLoopResult]: At program point isLowWaterLevelENTRY(lines 831 849) the Hoare annotation is: true [2020-07-20 16:24:10,163 INFO L268 CegarLoopResult]: For program point L840(lines 840 844) no Hoare annotation was computed. [2020-07-20 16:24:10,163 INFO L271 CegarLoopResult]: At program point L838(line 838) the Hoare annotation is: true [2020-07-20 16:24:10,164 INFO L268 CegarLoopResult]: For program point L840-2(lines 840 844) no Hoare annotation was computed. [2020-07-20 16:24:10,164 INFO L268 CegarLoopResult]: For program point isLowWaterLevelEXIT(lines 831 849) no Hoare annotation was computed. [2020-07-20 16:24:10,164 INFO L268 CegarLoopResult]: For program point L838-1(line 838) no Hoare annotation was computed. [2020-07-20 16:24:10,164 INFO L268 CegarLoopResult]: For program point isLowWaterLevelFINAL(lines 831 849) no Hoare annotation was computed. [2020-07-20 16:24:10,164 INFO L268 CegarLoopResult]: For program point L795(lines 795 803) no Hoare annotation was computed. [2020-07-20 16:24:10,164 INFO L268 CegarLoopResult]: For program point L795-2(lines 795 803) no Hoare annotation was computed. [2020-07-20 16:24:10,164 INFO L268 CegarLoopResult]: For program point L783(lines 783 791) no Hoare annotation was computed. [2020-07-20 16:24:10,164 INFO L268 CegarLoopResult]: For program point printPumpFINAL(lines 776 811) no Hoare annotation was computed. [2020-07-20 16:24:10,164 INFO L268 CegarLoopResult]: For program point L783-2(lines 783 791) no Hoare annotation was computed. [2020-07-20 16:24:10,164 INFO L268 CegarLoopResult]: For program point printPumpENTRY(lines 776 811) no Hoare annotation was computed. [2020-07-20 16:24:10,164 INFO L268 CegarLoopResult]: For program point L806(line 806) no Hoare annotation was computed. [2020-07-20 16:24:10,164 INFO L268 CegarLoopResult]: For program point L806-1(line 806) no Hoare annotation was computed. [2020-07-20 16:24:10,165 INFO L268 CegarLoopResult]: For program point printPumpEXIT(lines 776 811) no Hoare annotation was computed. [2020-07-20 16:24:10,165 INFO L268 CegarLoopResult]: For program point select_featuresEXIT(lines 974 980) no Hoare annotation was computed. [2020-07-20 16:24:10,165 INFO L271 CegarLoopResult]: At program point select_featuresFINAL(lines 974 980) the Hoare annotation is: true [2020-07-20 16:24:10,165 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setENTRY(lines 194 239) no Hoare annotation was computed. [2020-07-20 16:24:10,165 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setEXIT(lines 194 239) no Hoare annotation was computed. [2020-07-20 16:24:10,165 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setFINAL(lines 194 239) no Hoare annotation was computed. [2020-07-20 16:24:10,165 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeFINAL(lines 507 552) no Hoare annotation was computed. [2020-07-20 16:24:10,165 INFO L268 CegarLoopResult]: For program point L527(lines 527 534) no Hoare annotation was computed. [2020-07-20 16:24:10,165 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeENTRY(lines 507 552) no Hoare annotation was computed. [2020-07-20 16:24:10,166 INFO L268 CegarLoopResult]: For program point L521(lines 521 541) no Hoare annotation was computed. [2020-07-20 16:24:10,166 INFO L268 CegarLoopResult]: For program point L521-1(lines 521 541) no Hoare annotation was computed. [2020-07-20 16:24:10,166 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeEXIT(lines 507 552) no Hoare annotation was computed. [2020-07-20 16:24:10,166 INFO L264 CegarLoopResult]: At program point L113(line 113) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-20 16:24:10,166 INFO L264 CegarLoopResult]: At program point runTestENTRY(lines 108 118) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-20 16:24:10,166 INFO L268 CegarLoopResult]: For program point runTestEXIT(lines 108 118) no Hoare annotation was computed. [2020-07-20 16:24:10,166 INFO L268 CegarLoopResult]: For program point runTestFINAL(lines 108 118) no Hoare annotation was computed. [2020-07-20 16:24:10,167 INFO L271 CegarLoopResult]: At program point isMethaneAlarmENTRY(lines 756 766) the Hoare annotation is: true [2020-07-20 16:24:10,167 INFO L268 CegarLoopResult]: For program point isMethaneAlarmEXIT(lines 756 766) no Hoare annotation was computed. [2020-07-20 16:24:10,167 INFO L271 CegarLoopResult]: At program point L761(line 761) the Hoare annotation is: true [2020-07-20 16:24:10,167 INFO L268 CegarLoopResult]: For program point L761-1(line 761) no Hoare annotation was computed. [2020-07-20 16:24:10,167 INFO L268 CegarLoopResult]: For program point isMethaneAlarmFINAL(lines 756 766) no Hoare annotation was computed. [2020-07-20 16:24:10,167 INFO L264 CegarLoopResult]: At program point deactivatePumpENTRY(lines 748 755) the Hoare annotation is: (let ((.cse0 (= 0 |old(~pumpRunning~0)|)) (.cse1 (not (<= 1 ~systemActive~0))) (.cse2 (not (<= 1 ~methaneLevelCritical~0))) (.cse3 (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (and (or .cse0 (not (= 0 ~methAndRunningLastTime~0)) .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse3 (not (= 0 ~methaneLevelCritical~0))) (or .cse0 (not (<= 1 ~waterLevel~0)) .cse1 .cse2 .cse3))) [2020-07-20 16:24:10,167 INFO L268 CegarLoopResult]: For program point deactivatePumpEXIT(lines 748 755) no Hoare annotation was computed. [2020-07-20 16:24:10,167 INFO L268 CegarLoopResult]: For program point deactivatePumpFINAL(lines 748 755) no Hoare annotation was computed. [2020-07-20 16:24:10,168 INFO L268 CegarLoopResult]: For program point L943(lines 943 949) no Hoare annotation was computed. [2020-07-20 16:24:10,168 INFO L268 CegarLoopResult]: For program point isHighWaterSensorDryEXIT(lines 939 952) no Hoare annotation was computed. [2020-07-20 16:24:10,168 INFO L271 CegarLoopResult]: At program point isHighWaterSensorDryENTRY(lines 939 952) the Hoare annotation is: true [2020-07-20 16:24:10,168 INFO L268 CegarLoopResult]: For program point isHighWaterSensorDryFINAL(lines 939 952) no Hoare annotation was computed. [2020-07-20 16:24:10,168 INFO L264 CegarLoopResult]: At program point L734(line 734) the Hoare annotation is: (let ((.cse3 (not (= 0 ~methAndRunningLastTime~0))) (.cse2 (not (<= 1 ~methaneLevelCritical~0))) (.cse5 (= 0 ~pumpRunning~0)) (.cse0 (= 0 |old(~pumpRunning~0)|)) (.cse1 (not (<= 1 ~systemActive~0))) (.cse4 (not (= 0 ~methaneLevelCritical~0)))) (and (or .cse0 (not (<= 1 ~waterLevel~0)) .cse1 .cse2) (or .cse0 .cse3 .cse1 .cse2) (or .cse3 .cse1 .cse4 .cse5) (or .cse3 .cse1 .cse2 .cse5) (or .cse0 .cse1 .cse4))) [2020-07-20 16:24:10,168 INFO L268 CegarLoopResult]: For program point L734-1(lines 715 739) no Hoare annotation was computed. [2020-07-20 16:24:10,168 INFO L264 CegarLoopResult]: At program point L729(line 729) the Hoare annotation is: (let ((.cse0 (= 0 |old(~pumpRunning~0)|)) (.cse3 (not (= 0 ~methaneLevelCritical~0))) (.cse4 (not (= 0 ~methAndRunningLastTime~0))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse2 (not (<= 1 ~methaneLevelCritical~0)))) (and (or .cse0 (not (<= 1 ~waterLevel~0)) .cse1 .cse2) (or .cse0 .cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse3) (or .cse4 .cse1 (not .cse0) .cse3) (or .cse4 .cse1 .cse2))) [2020-07-20 16:24:10,169 INFO L268 CegarLoopResult]: For program point processEnvironmentEXIT(lines 715 739) no Hoare annotation was computed. [2020-07-20 16:24:10,169 INFO L264 CegarLoopResult]: At program point L725(line 725) the Hoare annotation is: (let ((.cse6 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse5 (= 0 |old(~pumpRunning~0)|))) (let ((.cse0 (not (= 0 ~methAndRunningLastTime~0))) (.cse3 (not .cse5)) (.cse7 (not (= 0 ~methaneLevelCritical~0))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse2 (not (<= 1 ~methaneLevelCritical~0))) (.cse4 (and .cse6 (<= ~methaneLevelCritical~0 processEnvironment_~tmp~8)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse2 .cse4) (or .cse5 .cse1 .cse6 .cse7) (or .cse0 .cse1 .cse3 .cse7) (or .cse5 (not (<= 1 ~waterLevel~0)) .cse1 .cse2 .cse4)))) [2020-07-20 16:24:10,169 INFO L264 CegarLoopResult]: At program point processEnvironmentENTRY(lines 715 739) the Hoare annotation is: (let ((.cse0 (= 0 |old(~pumpRunning~0)|)) (.cse3 (not (= 0 ~methaneLevelCritical~0))) (.cse5 (not (= 0 ~methAndRunningLastTime~0))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse4 (not (<= 1 ~methaneLevelCritical~0))) (.cse2 (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 (not (<= 1 ~waterLevel~0)) .cse1 .cse4 .cse2) (or .cse5 .cse1 (not .cse0) .cse3 (= 0 ~pumpRunning~0)) (or .cse5 .cse1 .cse4 .cse2))) [2020-07-20 16:24:10,169 INFO L268 CegarLoopResult]: For program point L723(lines 723 731) no Hoare annotation was computed. [2020-07-20 16:24:10,169 INFO L264 CegarLoopResult]: At program point L721(line 721) the Hoare annotation is: (let ((.cse4 (= 0 |old(~pumpRunning~0)|))) (let ((.cse3 (not .cse4)) (.cse6 (not (= 0 ~methaneLevelCritical~0))) (.cse0 (not (= 0 ~methAndRunningLastTime~0))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse2 (not (<= 1 ~methaneLevelCritical~0))) (.cse5 (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse1 .cse5 .cse6) (or .cse0 .cse1 .cse3 .cse6) (or .cse4 (not (<= 1 ~waterLevel~0)) .cse1 .cse2 .cse5) (or .cse0 .cse1 .cse2 .cse5)))) [2020-07-20 16:24:10,169 INFO L268 CegarLoopResult]: For program point L721-1(line 721) no Hoare annotation was computed. [2020-07-20 16:24:10,170 INFO L268 CegarLoopResult]: For program point L719(lines 719 736) no Hoare annotation was computed. [2020-07-20 16:24:10,170 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__baseEXIT(lines 655 661) no Hoare annotation was computed. [2020-07-20 16:24:10,170 INFO L271 CegarLoopResult]: At program point processEnvironment__wrappee__baseFINAL(lines 655 661) the Hoare annotation is: true [2020-07-20 16:24:10,170 INFO L264 CegarLoopResult]: At program point testENTRY(lines 555 620) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-20 16:24:10,170 INFO L268 CegarLoopResult]: For program point L603(lines 603 607) no Hoare annotation was computed. [2020-07-20 16:24:10,170 INFO L264 CegarLoopResult]: At program point L603-2(lines 595 608) the Hoare annotation is: (let ((.cse0 (= 0 ~methaneLevelCritical~0)) (.cse4 (= 0 ~methAndRunningLastTime~0)) (.cse5 (<= 1 ~methaneLevelCritical~0)) (.cse1 (not (= 0 ~pumpRunning~0))) (.cse2 (<= test_~splverifierCounter~0 0)) (.cse3 (<= 1 ~systemActive~0))) (or (not (<= |old(~waterLevel~0)| 1)) (and .cse0 .cse1 .cse2 .cse3) (not (= 0 |old(~pumpRunning~0)|)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and .cse0 .cse4 .cse2 .cse3) (and .cse4 .cse5 .cse2 .cse3) (and (<= 2 ~waterLevel~0) .cse5 .cse1 .cse2 .cse3) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|)))) [2020-07-20 16:24:10,170 INFO L268 CegarLoopResult]: For program point testFINAL(lines 555 620) no Hoare annotation was computed. [2020-07-20 16:24:10,170 INFO L268 CegarLoopResult]: For program point L566(lines 565 612) no Hoare annotation was computed. [2020-07-20 16:24:10,171 INFO L264 CegarLoopResult]: At program point L597(line 597) the Hoare annotation is: (let ((.cse0 (= 0 ~methaneLevelCritical~0)) (.cse4 (= 0 ~methAndRunningLastTime~0)) (.cse5 (<= 1 ~methaneLevelCritical~0)) (.cse1 (not (= 0 ~pumpRunning~0))) (.cse2 (<= test_~splverifierCounter~0 0)) (.cse3 (<= 1 ~systemActive~0))) (or (not (<= |old(~waterLevel~0)| 1)) (and .cse0 .cse1 .cse2 .cse3) (not (= 0 |old(~pumpRunning~0)|)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and .cse0 .cse4 .cse2 .cse3) (and .cse4 .cse5 .cse2 .cse3) (and (<= 2 ~waterLevel~0) .cse5 .cse1 .cse2 .cse3) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|)))) [2020-07-20 16:24:10,171 INFO L268 CegarLoopResult]: For program point L595(lines 595 608) no Hoare annotation was computed. [2020-07-20 16:24:10,171 INFO L264 CegarLoopResult]: At program point L587(line 587) the Hoare annotation is: (let ((.cse0 (= 0 ~methAndRunningLastTime~0)) (.cse1 (<= 1 ~methaneLevelCritical~0)) (.cse2 (= 0 ~pumpRunning~0)) (.cse3 (<= test_~splverifierCounter~0 0)) (.cse4 (<= 1 ~systemActive~0))) (or (not (<= |old(~waterLevel~0)| 1)) (and .cse0 .cse1 .cse2 .cse3 .cse4) (not (= 0 |old(~pumpRunning~0)|)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) .cse0 .cse3 .cse4) (and (<= 2 ~waterLevel~0) .cse1 (not .cse2) .cse3 .cse4) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|)))) [2020-07-20 16:24:10,171 INFO L268 CegarLoopResult]: For program point L585(lines 585 591) no Hoare annotation was computed. [2020-07-20 16:24:10,171 INFO L268 CegarLoopResult]: For program point L585-1(lines 585 591) no Hoare annotation was computed. [2020-07-20 16:24:10,171 INFO L264 CegarLoopResult]: At program point L610(lines 565 612) the Hoare annotation is: (let ((.cse0 (= 0 ~methAndRunningLastTime~0)) (.cse1 (<= 1 ~methaneLevelCritical~0)) (.cse2 (= 0 ~pumpRunning~0)) (.cse3 (<= test_~splverifierCounter~0 0)) (.cse4 (<= 1 ~systemActive~0))) (or (not (<= |old(~waterLevel~0)| 1)) (and .cse0 .cse1 .cse2 .cse3 .cse4) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) .cse0 .cse3 .cse4) (and (<= 2 ~waterLevel~0) .cse1 (not .cse2) .cse3 .cse4) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|)))) [2020-07-20 16:24:10,172 INFO L264 CegarLoopResult]: At program point L577(line 577) the Hoare annotation is: (let ((.cse0 (= 0 ~methAndRunningLastTime~0)) (.cse1 (<= 1 ~methaneLevelCritical~0)) (.cse2 (= 0 ~pumpRunning~0)) (.cse3 (<= test_~splverifierCounter~0 0)) (.cse4 (<= 1 ~systemActive~0))) (or (not (<= |old(~waterLevel~0)| 1)) (and .cse0 .cse1 .cse2 .cse3 .cse4) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) .cse0 .cse3 .cse4) (and (<= 2 ~waterLevel~0) .cse1 (not .cse2) .cse3 .cse4) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|)))) [2020-07-20 16:24:10,172 INFO L268 CegarLoopResult]: For program point L575(lines 575 581) no Hoare annotation was computed. [2020-07-20 16:24:10,172 INFO L268 CegarLoopResult]: For program point L575-1(lines 575 581) no Hoare annotation was computed. [2020-07-20 16:24:10,172 INFO L268 CegarLoopResult]: For program point L567(lines 567 571) no Hoare annotation was computed. [2020-07-20 16:24:10,172 INFO L264 CegarLoopResult]: At program point L613(lines 564 614) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-20 16:24:10,172 INFO L268 CegarLoopResult]: For program point testEXIT(lines 555 620) no Hoare annotation was computed. [2020-07-20 16:24:10,172 INFO L268 CegarLoopResult]: For program point L481(lines 481 488) no Hoare annotation was computed. [2020-07-20 16:24:10,172 INFO L268 CegarLoopResult]: For program point L475(lines 475 495) no Hoare annotation was computed. [2020-07-20 16:24:10,172 INFO L268 CegarLoopResult]: For program point L475-1(lines 475 495) no Hoare annotation was computed. [2020-07-20 16:24:10,173 INFO L268 CegarLoopResult]: For program point __utac__get_this_argENTRY(lines 461 506) no Hoare annotation was computed. [2020-07-20 16:24:10,173 INFO L268 CegarLoopResult]: For program point __utac__get_this_argEXIT(lines 461 506) no Hoare annotation was computed. [2020-07-20 16:24:10,173 INFO L268 CegarLoopResult]: For program point __utac__get_this_argFINAL(lines 461 506) no Hoare annotation was computed. [2020-07-20 16:24:10,173 INFO L268 CegarLoopResult]: For program point isLowWaterSensorDryFINAL(lines 953 961) no Hoare annotation was computed. [2020-07-20 16:24:10,173 INFO L271 CegarLoopResult]: At program point isLowWaterSensorDryENTRY(lines 953 961) the Hoare annotation is: true [2020-07-20 16:24:10,173 INFO L268 CegarLoopResult]: For program point isLowWaterSensorDryEXIT(lines 953 961) no Hoare annotation was computed. [2020-07-20 16:24:10,173 INFO L264 CegarLoopResult]: At program point __utac_acc__Specification2_spec__2ENTRY(lines 158 186) the Hoare annotation is: (or (not (<= 1 ~systemActive~0)) (not (<= 1 ~methaneLevelCritical~0)) (= 0 ~methAndRunningLastTime~0) (not (= 0 |old(~methAndRunningLastTime~0)|)) (= 0 ~pumpRunning~0) (not (<= 2 ~waterLevel~0))) [2020-07-20 16:24:10,173 INFO L264 CegarLoopResult]: At program point L173(line 173) the Hoare annotation is: (let ((.cse1 (not (<= 1 ~methaneLevelCritical~0))) (.cse0 (not (<= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (= 0 ~pumpRunning~0))) (or .cse0 .cse1 (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (<= 2 ~waterLevel~0))) (or .cse0 (not (= 0 ~methaneLevelCritical~0))))) [2020-07-20 16:24:10,174 INFO L268 CegarLoopResult]: For program point L171(lines 171 177) no Hoare annotation was computed. [2020-07-20 16:24:10,174 INFO L268 CegarLoopResult]: For program point L170(lines 170 180) no Hoare annotation was computed. [2020-07-20 16:24:10,174 INFO L264 CegarLoopResult]: At program point L168(line 168) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0)))) (and (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) (= 0 ~methAndRunningLastTime~0) (not (= 0 |old(~methAndRunningLastTime~0)|)) (= 0 ~pumpRunning~0) (not (<= 2 ~waterLevel~0))) (or .cse0 (not (= 0 ~methaneLevelCritical~0))))) [2020-07-20 16:24:10,174 INFO L268 CegarLoopResult]: For program point L168-1(line 168) no Hoare annotation was computed. [2020-07-20 16:24:10,174 INFO L268 CegarLoopResult]: For program point L166(lines 166 183) no Hoare annotation was computed. [2020-07-20 16:24:10,174 INFO L268 CegarLoopResult]: For program point L166-1(lines 158 186) no Hoare annotation was computed. [2020-07-20 16:24:10,174 INFO L264 CegarLoopResult]: At program point L164(line 164) the Hoare annotation is: (or (not (<= 1 ~systemActive~0)) (not (<= 1 ~methaneLevelCritical~0)) (= 0 ~methAndRunningLastTime~0) (not (= 0 |old(~methAndRunningLastTime~0)|)) (= 0 ~pumpRunning~0) (not (<= 2 ~waterLevel~0))) [2020-07-20 16:24:10,174 INFO L268 CegarLoopResult]: For program point __utac_acc__Specification2_spec__2EXIT(lines 158 186) no Hoare annotation was computed. [2020-07-20 16:24:10,174 INFO L268 CegarLoopResult]: For program point L164-1(line 164) no Hoare annotation was computed. [2020-07-20 16:24:10,175 INFO L264 CegarLoopResult]: At program point __utac_acc__Specification2_spec__1ENTRY(lines 150 157) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0)) (= 0 ~methAndRunningLastTime~0) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 ~methaneLevelCritical~0)) (not (<= ~waterLevel~0 1)) (not (= 0 ~pumpRunning~0))) [2020-07-20 16:24:10,175 INFO L268 CegarLoopResult]: For program point __utac_acc__Specification2_spec__1FINAL(lines 150 157) no Hoare annotation was computed. [2020-07-20 16:24:10,175 INFO L268 CegarLoopResult]: For program point __utac_acc__Specification2_spec__1EXIT(lines 150 157) no Hoare annotation was computed. [2020-07-20 16:24:10,175 INFO L268 CegarLoopResult]: For program point L915-2(lines 915 923) no Hoare annotation was computed. [2020-07-20 16:24:10,175 INFO L268 CegarLoopResult]: For program point printEnvironmentEXIT(lines 907 929) no Hoare annotation was computed. [2020-07-20 16:24:10,175 INFO L268 CegarLoopResult]: For program point printEnvironmentENTRY(lines 907 929) no Hoare annotation was computed. [2020-07-20 16:24:10,175 INFO L268 CegarLoopResult]: For program point printEnvironmentFINAL(lines 907 929) no Hoare annotation was computed. [2020-07-20 16:24:10,175 INFO L268 CegarLoopResult]: For program point L915(lines 915 923) no Hoare annotation was computed. [2020-07-20 16:24:10,175 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtENTRY(lines 358 460) no Hoare annotation was computed. [2020-07-20 16:24:10,175 INFO L268 CegarLoopResult]: For program point L382(lines 382 386) no Hoare annotation was computed. [2020-07-20 16:24:10,176 INFO L268 CegarLoopResult]: For program point L446(lines 446 457) no Hoare annotation was computed. [2020-07-20 16:24:10,176 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-20 16:24:10,176 INFO L268 CegarLoopResult]: For program point L407-2(lines 407 427) no Hoare annotation was computed. [2020-07-20 16:24:10,176 INFO L268 CegarLoopResult]: For program point L428(lines 406 429) no Hoare annotation was computed. [2020-07-20 16:24:10,176 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtFINAL(lines 358 460) no Hoare annotation was computed. [2020-07-20 16:24:10,176 INFO L268 CegarLoopResult]: For program point L387(lines 387 403) no Hoare annotation was computed. [2020-07-20 16:24:10,176 INFO L268 CegarLoopResult]: For program point L447(lines 447 454) no Hoare annotation was computed. [2020-07-20 16:24:10,176 INFO L268 CegarLoopResult]: For program point L408(lines 407 427) no Hoare annotation was computed. [2020-07-20 16:24:10,177 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-20 16:24:10,177 INFO L268 CegarLoopResult]: For program point L439-1(line 439) no Hoare annotation was computed. [2020-07-20 16:24:10,177 INFO L268 CegarLoopResult]: For program point L404(lines 404 445) no Hoare annotation was computed. [2020-07-20 16:24:10,177 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtEXIT(lines 358 460) no Hoare annotation was computed. [2020-07-20 16:24:10,177 INFO L268 CegarLoopResult]: For program point L423(line 423) no Hoare annotation was computed. [2020-07-20 16:24:10,177 INFO L268 CegarLoopResult]: For program point L423-1(line 423) no Hoare annotation was computed. [2020-07-20 16:24:10,177 INFO L268 CegarLoopResult]: For program point select_oneENTRY(lines 964 973) no Hoare annotation was computed. [2020-07-20 16:24:10,177 INFO L268 CegarLoopResult]: For program point select_oneFINAL(lines 964 973) no Hoare annotation was computed. [2020-07-20 16:24:10,177 INFO L268 CegarLoopResult]: For program point select_oneEXIT(lines 964 973) no Hoare annotation was computed. [2020-07-20 16:24:10,178 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 16:24:10,178 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= |old(~waterLevel~0)| ~waterLevel~0)) [2020-07-20 16:24:10,178 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 16:24:10,178 INFO L268 CegarLoopResult]: For program point activatePumpFINAL(lines 740 747) no Hoare annotation was computed. [2020-07-20 16:24:10,178 INFO L268 CegarLoopResult]: For program point activatePumpEXIT(lines 740 747) no Hoare annotation was computed. [2020-07-20 16:24:10,178 INFO L264 CegarLoopResult]: At program point activatePumpENTRY(lines 740 747) the Hoare annotation is: (let ((.cse0 (not (= 0 ~methAndRunningLastTime~0))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (= 0 ~pumpRunning~0)) (.cse4 (not (<= 2 ~waterLevel~0)))) (and (or .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0)) .cse2 .cse3 .cse4) (or .cse0 .cse1 .cse2 (not (= 0 ~methaneLevelCritical~0)) .cse3 .cse4))) [2020-07-20 16:24:10,178 INFO L268 CegarLoopResult]: For program point isHighWaterLevelEXIT(lines 812 830) no Hoare annotation was computed. [2020-07-20 16:24:10,178 INFO L271 CegarLoopResult]: At program point isHighWaterLevelENTRY(lines 812 830) the Hoare annotation is: true [2020-07-20 16:24:10,178 INFO L268 CegarLoopResult]: For program point L821(lines 821 825) no Hoare annotation was computed. [2020-07-20 16:24:10,179 INFO L268 CegarLoopResult]: For program point isHighWaterLevelFINAL(lines 812 830) no Hoare annotation was computed. [2020-07-20 16:24:10,179 INFO L271 CegarLoopResult]: At program point L819(line 819) the Hoare annotation is: true [2020-07-20 16:24:10,179 INFO L268 CegarLoopResult]: For program point L821-2(lines 821 825) no Hoare annotation was computed. [2020-07-20 16:24:10,179 INFO L268 CegarLoopResult]: For program point L819-1(line 819) no Hoare annotation was computed. [2020-07-20 16:24:10,179 INFO L268 CegarLoopResult]: For program point getWaterLevelENTRY(lines 930 938) no Hoare annotation was computed. [2020-07-20 16:24:10,179 INFO L268 CegarLoopResult]: For program point getWaterLevelFINAL(lines 930 938) no Hoare annotation was computed. [2020-07-20 16:24:10,179 INFO L268 CegarLoopResult]: For program point getWaterLevelEXIT(lines 930 938) no Hoare annotation was computed. [2020-07-20 16:24:10,179 INFO L264 CegarLoopResult]: At program point changeMethaneLevelENTRY(lines 886 897) the Hoare annotation is: (let ((.cse4 (not (= 0 ~methAndRunningLastTime~0))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (<= 1 ~methaneLevelCritical~0)) (.cse2 (= 0 ~pumpRunning~0)) (.cse3 (not (<= 1 |old(~methaneLevelCritical~0)|)))) (and (or .cse0 .cse1 .cse2 (not (<= 2 ~waterLevel~0)) .cse3) (or .cse4 .cse0 (= 0 ~methaneLevelCritical~0) (not (= |old(~methaneLevelCritical~0)| 0))) (or .cse4 .cse0 .cse1 (not .cse2) .cse3))) [2020-07-20 16:24:10,180 INFO L268 CegarLoopResult]: For program point L890-1(lines 886 897) no Hoare annotation was computed. [2020-07-20 16:24:10,180 INFO L268 CegarLoopResult]: For program point changeMethaneLevelEXIT(lines 886 897) no Hoare annotation was computed. [2020-07-20 16:24:10,180 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2020-07-20 16:24:10,180 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intENTRY(line -1) no Hoare annotation was computed. [2020-07-20 16:24:10,180 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intFINAL(line -1) no Hoare annotation was computed. [2020-07-20 16:24:10,180 INFO L264 CegarLoopResult]: At program point L637(line 637) the Hoare annotation is: (let ((.cse8 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse9 (<= |old(~waterLevel~0)| ~waterLevel~0)) (.cse0 (= 0 |old(~pumpRunning~0)|))) (let ((.cse7 (not .cse0)) (.cse4 (<= ~waterLevel~0 1)) (.cse1 (not (<= |old(~waterLevel~0)| 1))) (.cse6 (not (= 0 |old(~methAndRunningLastTime~0)|))) (.cse10 (not (= 0 |old(~waterLevel~0)|))) (.cse11 (= 0 ~waterLevel~0)) (.cse5 (not (<= 1 ~methaneLevelCritical~0))) (.cse2 (not (<= 1 ~systemActive~0))) (.cse3 (not (= 0 ~methaneLevelCritical~0))) (.cse12 (and .cse8 .cse9))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse2 .cse5 .cse6 .cse7) (or .cse2 .cse5 .cse6 (and (= 0 ~methAndRunningLastTime~0) .cse8 .cse9)) (or .cse2 .cse6 .cse7 .cse3) (or .cse1 .cse2 .cse5 .cse6 .cse4) (or .cse0 .cse1 .cse2 .cse3 .cse10 .cse11) (or .cse2 .cse5 .cse6 .cse10 .cse11) (or .cse0 .cse2 .cse5 (not (<= 2 |old(~waterLevel~0)|)) .cse12) (or .cse0 .cse2 .cse3 .cse12)))) [2020-07-20 16:24:10,180 INFO L268 CegarLoopResult]: For program point L635(lines 634 653) no Hoare annotation was computed. [2020-07-20 16:24:10,181 INFO L264 CegarLoopResult]: At program point timeShiftENTRY(lines 631 654) the Hoare annotation is: (let ((.cse9 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse5 (<= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse4 (= 0 ~methAndRunningLastTime~0)) (.cse7 (<= ~waterLevel~0 1)) (.cse6 (not (<= |old(~waterLevel~0)| 1))) (.cse8 (not (<= 1 ~methaneLevelCritical~0))) (.cse1 (not (= 0 |old(~methAndRunningLastTime~0)|))) (.cse10 (not (= 0 |old(~waterLevel~0)|))) (.cse11 (= 0 ~waterLevel~0)) (.cse2 (= 0 |old(~pumpRunning~0)|)) (.cse0 (not (<= 1 ~systemActive~0))) (.cse3 (not (= 0 ~methaneLevelCritical~0))) (.cse12 (and .cse9 .cse5))) (and (or .cse0 .cse1 (not .cse2) .cse3 (and .cse4 (= 0 ~pumpRunning~0) .cse5)) (or .cse2 .cse6 .cse0 .cse3 .cse7) (or .cse0 .cse8 .cse1 (and .cse4 .cse9 .cse5)) (or .cse6 .cse0 .cse1 .cse3 .cse7) (or .cse6 .cse0 .cse8 .cse1 .cse7) (or .cse2 .cse6 .cse0 .cse3 .cse10 .cse11) (or .cse0 .cse8 .cse1 .cse10 .cse11) (or .cse2 .cse0 .cse8 (not (<= 2 |old(~waterLevel~0)|)) .cse12) (or .cse0 .cse1 .cse3 .cse10 .cse11) (or .cse2 .cse0 .cse3 .cse12)))) [2020-07-20 16:24:10,181 INFO L268 CegarLoopResult]: For program point timeShiftEXIT(lines 631 654) no Hoare annotation was computed. [2020-07-20 16:24:10,181 INFO L268 CegarLoopResult]: For program point timeShiftFINAL(lines 631 654) no Hoare annotation was computed. [2020-07-20 16:24:10,181 INFO L264 CegarLoopResult]: At program point L644(line 644) the Hoare annotation is: (let ((.cse8 (= 0 ~methAndRunningLastTime~0)) (.cse5 (= 0 |old(~pumpRunning~0)|)) (.cse9 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse10 (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)))) (let ((.cse7 (<= ~waterLevel~0 1)) (.cse6 (not (<= |old(~waterLevel~0)| 1))) (.cse12 (and .cse9 .cse10)) (.cse3 (not (= 0 ~methaneLevelCritical~0))) (.cse13 (not (= 0 |old(~waterLevel~0)|))) (.cse14 (= 0 ~waterLevel~0)) (.cse0 (not (<= 1 ~systemActive~0))) (.cse11 (not (<= 1 ~methaneLevelCritical~0))) (.cse1 (not (= 0 |old(~methAndRunningLastTime~0)|))) (.cse2 (not .cse5)) (.cse4 (and .cse8 (= 0 ~pumpRunning~0) (<= |old(~waterLevel~0)| ~waterLevel~0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse6 .cse0 .cse3 .cse7) (or (and .cse8 .cse9 .cse10) .cse0 .cse11 .cse1) (or .cse5 .cse0 .cse11 .cse12 (not (<= 2 |old(~waterLevel~0)|))) (or .cse6 .cse0 .cse1 .cse3 .cse7) (or .cse6 .cse0 .cse11 .cse1 .cse7) (or .cse5 .cse6 .cse0 .cse3 .cse13 .cse14) (or .cse5 .cse0 .cse3 .cse12) (or .cse0 .cse11 .cse1 .cse13 .cse14) (or .cse0 .cse1 .cse3 .cse13 .cse14) (or .cse0 .cse11 .cse1 .cse2 .cse4)))) [2020-07-20 16:24:10,181 INFO L264 CegarLoopResult]: At program point L642(lines 642 648) the Hoare annotation is: (let ((.cse0 (= 0 |old(~pumpRunning~0)|)) (.cse3 (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1))) (.cse13 (= 0 ~pumpRunning~0))) (let ((.cse9 (and (= 0 ~methAndRunningLastTime~0) (<= |old(~waterLevel~0)| ~waterLevel~0))) (.cse4 (and .cse3 .cse13)) (.cse12 (not (<= 1 ~methaneLevelCritical~0))) (.cse10 (not (= 0 |old(~waterLevel~0)|))) (.cse11 (= 0 ~waterLevel~0)) (.cse5 (not (<= |old(~waterLevel~0)| 1))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse7 (not (= 0 |old(~methAndRunningLastTime~0)|))) (.cse8 (not .cse0)) (.cse2 (not (= 0 ~methaneLevelCritical~0))) (.cse6 (<= ~waterLevel~0 1))) (and (or .cse0 .cse1 .cse2 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse3) .cse4) (or .cse0 .cse5 .cse1 .cse2 .cse6) (or .cse1 .cse7 .cse8 .cse2 .cse9) (or .cse0 .cse5 .cse1 .cse2 .cse10 .cse11) (or .cse1 .cse12 .cse7 .cse8 .cse9) (or .cse1 .cse12 .cse7 .cse10 .cse11) (or .cse0 .cse1 .cse12 .cse4 (not (<= 2 |old(~waterLevel~0)|))) (or .cse5 .cse1 .cse12 .cse7 (and .cse3 .cse13 .cse6)) (or .cse1 .cse7 .cse2 .cse10 .cse11) (or .cse5 .cse1 .cse7 .cse8 .cse2 (and .cse13 .cse6))))) [2020-07-20 16:24:10,181 INFO L268 CegarLoopResult]: For program point cleanupEXIT(lines 42 71) no Hoare annotation was computed. [2020-07-20 16:24:10,182 INFO L268 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-07-20 16:24:10,182 INFO L271 CegarLoopResult]: At program point cleanupENTRY(lines 42 71) the Hoare annotation is: true [2020-07-20 16:24:10,182 INFO L268 CegarLoopResult]: For program point L56(lines 56 60) no Hoare annotation was computed. [2020-07-20 16:24:10,182 INFO L271 CegarLoopResult]: At program point L56-1(lines 56 60) the Hoare annotation is: true [2020-07-20 16:24:10,182 INFO L268 CegarLoopResult]: For program point L53(line 53) no Hoare annotation was computed. [2020-07-20 16:24:10,182 INFO L271 CegarLoopResult]: At program point L52-2(lines 52 66) the Hoare annotation is: true [2020-07-20 16:24:10,182 INFO L271 CegarLoopResult]: At program point L48(line 48) the Hoare annotation is: true [2020-07-20 16:24:10,182 INFO L268 CegarLoopResult]: For program point L48-1(line 48) no Hoare annotation was computed. [2020-07-20 16:24:10,182 INFO L271 CegarLoopResult]: At program point L67(lines 42 71) the Hoare annotation is: true [2020-07-20 16:24:10,183 INFO L271 CegarLoopResult]: At program point isMethaneLevelCriticalENTRY(lines 898 906) the Hoare annotation is: true [2020-07-20 16:24:10,183 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalFINAL(lines 898 906) no Hoare annotation was computed. [2020-07-20 16:24:10,183 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalEXIT(lines 898 906) no Hoare annotation was computed. [2020-07-20 16:24:10,183 INFO L268 CegarLoopResult]: For program point L866-1(lines 862 873) no Hoare annotation was computed. [2020-07-20 16:24:10,183 INFO L264 CegarLoopResult]: At program point lowerWaterLevelENTRY(lines 862 873) the Hoare annotation is: (let ((.cse5 (not (= 0 ~methAndRunningLastTime~0))) (.cse4 (not (<= 1 ~methaneLevelCritical~0))) (.cse3 (<= |old(~waterLevel~0)| ~waterLevel~0)) (.cse9 (<= ~waterLevel~0 1)) (.cse8 (not (<= |old(~waterLevel~0)| 1))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (= 0 ~methaneLevelCritical~0))) (.cse2 (= 0 ~pumpRunning~0)) (.cse6 (not (= 0 |old(~waterLevel~0)|))) (.cse7 (= 0 ~waterLevel~0))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse4 .cse2 (not (<= 2 |old(~waterLevel~0)|)) .cse3) (or .cse5 .cse0 .cse4 .cse2 .cse6 .cse7) (or .cse8 .cse5 .cse0 .cse4 (and .cse9 .cse3) .cse2) (or .cse8 .cse0 .cse1 .cse2 .cse9) (or .cse8 .cse0 .cse1 .cse2 .cse6 .cse7))) [2020-07-20 16:24:10,183 INFO L268 CegarLoopResult]: For program point lowerWaterLevelEXIT(lines 862 873) no Hoare annotation was computed. [2020-07-20 16:24:10,183 INFO L268 CegarLoopResult]: For program point setupEXIT(lines 99 105) no Hoare annotation was computed. [2020-07-20 16:24:10,183 INFO L271 CegarLoopResult]: At program point setupFINAL(lines 99 105) the Hoare annotation is: true [2020-07-20 16:24:10,184 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 16:24:10,184 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (<= 1 ~waterLevel~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0)) [2020-07-20 16:24:10,184 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 16:24:10,184 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 16:24:10,184 INFO L268 CegarLoopResult]: For program point startSystemEXIT(lines 850 857) no Hoare annotation was computed. [2020-07-20 16:24:10,184 INFO L264 CegarLoopResult]: At program point startSystemENTRY(lines 850 857) the Hoare annotation is: (let ((.cse5 (not (<= 1 ~methaneLevelCritical~0))) (.cse1 (= 0 ~pumpRunning~0)) (.cse4 (not (= 0 ~methAndRunningLastTime~0))) (.cse0 (not (= 0 ~methaneLevelCritical~0))) (.cse2 (<= 1 ~systemActive~0)) (.cse3 (not (<= 1 |old(~systemActive~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse2 .cse3) (or .cse5 .cse1 (not (<= 2 ~waterLevel~0)) .cse2 .cse3) (or .cse4 .cse0 .cse2 .cse3))) [2020-07-20 16:24:10,184 INFO L268 CegarLoopResult]: For program point startSystemFINAL(lines 850 857) no Hoare annotation was computed. [2020-07-20 16:24:10,184 INFO L264 CegarLoopResult]: At program point L673(line 673) the Hoare annotation is: (let ((.cse6 (= 0 |old(~pumpRunning~0)|))) (let ((.cse2 (not (<= 1 ~methaneLevelCritical~0))) (.cse3 (not .cse6)) (.cse0 (not (= 0 ~methAndRunningLastTime~0))) (.cse4 (= 0 ~pumpRunning~0)) (.cse1 (not (<= 1 ~systemActive~0))) (.cse5 (not (= 0 ~methaneLevelCritical~0)))) (and (or .cse0 .cse1 .cse2 .cse3 (not (<= ~waterLevel~0 1))) (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse1 (and (<= 2 ~waterLevel~0) .cse4) .cse5) (or .cse6 .cse1 .cse5)))) [2020-07-20 16:24:10,185 INFO L264 CegarLoopResult]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 663 687) the Hoare annotation is: (let ((.cse0 (= 0 |old(~pumpRunning~0)|))) (let ((.cse3 (not (= 0 ~methAndRunningLastTime~0))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse4 (not .cse0)) (.cse2 (not (= 0 ~methaneLevelCritical~0))) (.cse5 (= 0 ~pumpRunning~0))) (and (or .cse0 .cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse2) (or .cse3 .cse1 (not (<= 1 ~methaneLevelCritical~0)) .cse4 .cse5) (or .cse3 .cse1 .cse4 .cse2 .cse5)))) [2020-07-20 16:24:10,185 INFO L268 CegarLoopResult]: For program point L671(lines 671 679) no Hoare annotation was computed. [2020-07-20 16:24:10,185 INFO L264 CegarLoopResult]: At program point L669(line 669) the Hoare annotation is: (let ((.cse0 (not (= 0 ~methAndRunningLastTime~0))) (.cse3 (= 0 ~pumpRunning~0)) (.cse2 (= 0 |old(~pumpRunning~0)|)) (.cse1 (not (<= 1 ~systemActive~0))) (.cse4 (not (= 0 ~methaneLevelCritical~0)))) (and (or .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0)) (not .cse2) .cse3) (or .cse0 .cse1 .cse4 .cse3) (or .cse2 .cse1 .cse4))) [2020-07-20 16:24:10,185 INFO L268 CegarLoopResult]: For program point L669-1(line 669) no Hoare annotation was computed. [2020-07-20 16:24:10,185 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 663 687) no Hoare annotation was computed. [2020-07-20 16:24:10,185 INFO L268 CegarLoopResult]: For program point L667(lines 667 684) no Hoare annotation was computed. [2020-07-20 16:24:10,185 INFO L264 CegarLoopResult]: At program point L682(line 682) the Hoare annotation is: (let ((.cse3 (= 0 |old(~pumpRunning~0)|))) (let ((.cse0 (not (= 0 ~methAndRunningLastTime~0))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse2 (not .cse3)) (.cse4 (not (= 0 ~methaneLevelCritical~0)))) (and (or .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0)) .cse2) (or .cse3 .cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse4) (or .cse0 .cse1 .cse2 .cse4)))) [2020-07-20 16:24:10,185 INFO L268 CegarLoopResult]: For program point L682-1(lines 663 687) no Hoare annotation was computed. [2020-07-20 16:24:10,185 INFO L264 CegarLoopResult]: At program point L677(line 677) the Hoare annotation is: (let ((.cse0 (not (= 0 ~methAndRunningLastTime~0))) (.cse2 (and (= 0 ~pumpRunning~0) (= 0 processEnvironment__wrappee__highWaterSensor_~tmp~6))) (.cse4 (= 0 |old(~pumpRunning~0)|)) (.cse1 (not (<= 1 ~systemActive~0))) (.cse3 (not (= 0 ~methaneLevelCritical~0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0)) .cse2 (not .cse4)) (or .cse4 .cse1 .cse3))) [2020-07-20 16:24:10,185 INFO L268 CegarLoopResult]: For program point waterRiseEXIT(lines 874 885) no Hoare annotation was computed. [2020-07-20 16:24:10,185 INFO L268 CegarLoopResult]: For program point L878-1(lines 874 885) no Hoare annotation was computed. [2020-07-20 16:24:10,186 INFO L264 CegarLoopResult]: At program point waterRiseENTRY(lines 874 885) the Hoare annotation is: (let ((.cse2 (= 0 ~pumpRunning~0))) (let ((.cse6 (not (= 0 |old(~waterLevel~0)|))) (.cse7 (= 0 ~waterLevel~0)) (.cse8 (not (= 0 ~methaneLevelCritical~0))) (.cse3 (<= |old(~waterLevel~0)| ~waterLevel~0)) (.cse9 (not (<= |old(~waterLevel~0)| 1))) (.cse4 (not (= 0 ~methAndRunningLastTime~0))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (<= 1 ~methaneLevelCritical~0))) (.cse10 (<= ~waterLevel~0 1)) (.cse5 (not .cse2))) (and (or .cse0 .cse1 .cse2 (not (<= 2 |old(~waterLevel~0)|)) .cse3) (or .cse4 .cse0 .cse1 .cse5 .cse6 .cse7) (or .cse4 .cse0 .cse8 .cse6 .cse7) (or .cse4 .cse0 .cse8 .cse3) (or .cse9 .cse4 .cse0 .cse8 .cse10) (or .cse4 .cse0 .cse1 .cse5 .cse3) (or .cse9 .cse4 .cse0 .cse1 .cse10 .cse5)))) [2020-07-20 16:24:10,186 INFO L268 CegarLoopResult]: For program point __automaton_failFINAL(lines 998 1005) no Hoare annotation was computed. [2020-07-20 16:24:10,186 INFO L268 CegarLoopResult]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 1002) no Hoare annotation was computed. [2020-07-20 16:24:10,186 INFO L271 CegarLoopResult]: At program point __automaton_failENTRY(lines 998 1005) the Hoare annotation is: true [2020-07-20 16:24:10,186 INFO L268 CegarLoopResult]: For program point __automaton_failEXIT(lines 998 1005) no Hoare annotation was computed. [2020-07-20 16:24:10,186 INFO L264 CegarLoopResult]: At program point L703(line 703) the Hoare annotation is: (let ((.cse3 (= 0 |old(~pumpRunning~0)|))) (let ((.cse0 (not (= 0 ~methAndRunningLastTime~0))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse2 (not .cse3)) (.cse4 (not (= 0 ~methaneLevelCritical~0)))) (and (or .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0)) .cse2) (or .cse3 .cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse4) (or .cse0 .cse1 .cse2 .cse4)))) [2020-07-20 16:24:10,186 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__lowWaterSensorEXIT(lines 689 713) no Hoare annotation was computed. [2020-07-20 16:24:10,186 INFO L264 CegarLoopResult]: At program point L699(line 699) the Hoare annotation is: (let ((.cse3 (= 0 |old(~pumpRunning~0)|))) (let ((.cse0 (not (= 0 ~methAndRunningLastTime~0))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse2 (not .cse3)) (.cse4 (not (= 0 ~methaneLevelCritical~0)))) (and (or .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0)) .cse2) (or .cse3 .cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse4) (or .cse0 .cse1 .cse2 .cse4)))) [2020-07-20 16:24:10,186 INFO L264 CegarLoopResult]: At program point processEnvironment__wrappee__lowWaterSensorENTRY(lines 689 713) the Hoare annotation is: (let ((.cse0 (= 0 |old(~pumpRunning~0)|))) (let ((.cse3 (not (= 0 ~methAndRunningLastTime~0))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse4 (not .cse0)) (.cse2 (not (= 0 ~methaneLevelCritical~0))) (.cse5 (= 0 ~pumpRunning~0))) (and (or .cse0 .cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse2) (or .cse3 .cse1 (not (<= 1 ~methaneLevelCritical~0)) .cse4 .cse5) (or .cse3 .cse1 .cse4 .cse2 .cse5)))) [2020-07-20 16:24:10,186 INFO L268 CegarLoopResult]: For program point L697(lines 697 705) no Hoare annotation was computed. [2020-07-20 16:24:10,187 INFO L264 CegarLoopResult]: At program point L695(line 695) the Hoare annotation is: (let ((.cse3 (= 0 |old(~pumpRunning~0)|))) (let ((.cse0 (not (= 0 ~methAndRunningLastTime~0))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse2 (not .cse3)) (.cse4 (not (= 0 ~methaneLevelCritical~0)))) (and (or .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0)) .cse2) (or .cse3 .cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse4) (or .cse0 .cse1 .cse2 .cse4)))) [2020-07-20 16:24:10,187 INFO L268 CegarLoopResult]: For program point L695-1(line 695) no Hoare annotation was computed. [2020-07-20 16:24:10,187 INFO L268 CegarLoopResult]: For program point L693(lines 693 710) no Hoare annotation was computed. [2020-07-20 16:24:10,187 INFO L264 CegarLoopResult]: At program point L708(line 708) the Hoare annotation is: (let ((.cse0 (not (= 0 ~methAndRunningLastTime~0))) (.cse3 (= 0 ~pumpRunning~0)) (.cse2 (= 0 |old(~pumpRunning~0)|)) (.cse1 (not (<= 1 ~systemActive~0))) (.cse4 (not (= 0 ~methaneLevelCritical~0)))) (and (or .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0)) (not .cse2) .cse3) (or .cse0 .cse1 .cse4 .cse3) (or .cse2 .cse1 .cse4))) [2020-07-20 16:24:10,187 INFO L268 CegarLoopResult]: For program point L708-1(lines 689 713) no Hoare annotation was computed. [2020-07-20 16:24:10,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 04:24:10 BoogieIcfgContainer [2020-07-20 16:24:10,207 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 16:24:10,209 INFO L168 Benchmark]: Toolchain (without parser) took 31441.21 ms. Allocated memory was 144.2 MB in the beginning and 548.9 MB in the end (delta: 404.8 MB). Free memory was 99.7 MB in the beginning and 242.9 MB in the end (delta: -143.3 MB). Peak memory consumption was 428.0 MB. Max. memory is 7.1 GB. [2020-07-20 16:24:10,209 INFO L168 Benchmark]: CDTParser took 0.64 ms. Allocated memory is still 144.2 MB. Free memory was 119.1 MB in the beginning and 118.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-20 16:24:10,210 INFO L168 Benchmark]: CACSL2BoogieTranslator took 684.85 ms. Allocated memory was 144.2 MB in the beginning and 201.9 MB in the end (delta: 57.7 MB). Free memory was 99.2 MB in the beginning and 171.0 MB in the end (delta: -71.8 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB. [2020-07-20 16:24:10,213 INFO L168 Benchmark]: Boogie Preprocessor took 87.30 ms. Allocated memory is still 201.9 MB. Free memory was 171.0 MB in the beginning and 166.9 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-07-20 16:24:10,213 INFO L168 Benchmark]: RCFGBuilder took 1345.25 ms. Allocated memory was 201.9 MB in the beginning and 232.8 MB in the end (delta: 30.9 MB). Free memory was 166.9 MB in the beginning and 193.4 MB in the end (delta: -26.5 MB). Peak memory consumption was 87.1 MB. Max. memory is 7.1 GB. [2020-07-20 16:24:10,214 INFO L168 Benchmark]: TraceAbstraction took 29317.38 ms. Allocated memory was 232.8 MB in the beginning and 548.9 MB in the end (delta: 316.1 MB). Free memory was 193.4 MB in the beginning and 242.9 MB in the end (delta: -49.5 MB). Peak memory consumption was 433.1 MB. Max. memory is 7.1 GB. [2020-07-20 16:24:10,220 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.64 ms. Allocated memory is still 144.2 MB. Free memory was 119.1 MB in the beginning and 118.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 684.85 ms. Allocated memory was 144.2 MB in the beginning and 201.9 MB in the end (delta: 57.7 MB). Free memory was 99.2 MB in the beginning and 171.0 MB in the end (delta: -71.8 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 87.30 ms. Allocated memory is still 201.9 MB. Free memory was 171.0 MB in the beginning and 166.9 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1345.25 ms. Allocated memory was 201.9 MB in the beginning and 232.8 MB in the end (delta: 30.9 MB). Free memory was 166.9 MB in the beginning and 193.4 MB in the end (delta: -26.5 MB). Peak memory consumption was 87.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 29317.38 ms. Allocated memory was 232.8 MB in the beginning and 548.9 MB in the end (delta: 316.1 MB). Free memory was 193.4 MB in the beginning and 242.9 MB in the end (delta: -49.5 MB). Peak memory consumption was 433.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1002]: 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: 565]: Loop Invariant Derived loop invariant: (((((((!(\old(waterLevel) <= 1) || ((((0 == methAndRunningLastTime && 1 <= methaneLevelCritical) && 0 == pumpRunning) && splverifierCounter <= 0) && 1 <= systemActive)) || !(0 == \old(methAndRunningLastTime))) || !(0 == \old(pumpRunning))) || !(\old(methaneLevelCritical) == 0)) || (((0 == methaneLevelCritical && 0 == methAndRunningLastTime) && splverifierCounter <= 0) && 1 <= systemActive)) || ((((2 <= waterLevel && 1 <= methaneLevelCritical) && !(0 == pumpRunning)) && splverifierCounter <= 0) && 1 <= systemActive)) || !(1 <= \old(waterLevel))) || !(1 <= \old(systemActive)) - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 564]: Loop Invariant Derived loop invariant: ((((!(\old(waterLevel) <= 1) || !(0 == \old(methAndRunningLastTime))) || !(0 == \old(pumpRunning))) || !(\old(methaneLevelCritical) == 0)) || !(1 <= \old(waterLevel))) || !(1 <= \old(systemActive)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 43 procedures, 254 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 15.6s, OverallIterations: 13, TraceHistogramMax: 3, AutomataDifference: 5.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 13.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2624 SDtfs, 1870 SDslu, 4055 SDs, 0 SdLazy, 2997 SolverSat, 929 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1499 GetRequests, 1430 SyntacticMatches, 4 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2614occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 13 MinimizatonAttempts, 893 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 69 LocationsWithAnnotation, 3478 PreInvPairs, 3693 NumberOfFragments, 3307 HoareAnnotationTreeSize, 3478 FomulaSimplifications, 18078 FormulaSimplificationTreeSizeReduction, 2.0s HoareSimplificationTime, 69 FomulaSimplificationsInter, 33204 FormulaSimplificationTreeSizeReductionInter, 11.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 3.8s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 1311 NumberOfCodeBlocks, 1073 NumberOfCodeBlocksAsserted, 42 NumberOfCheckSat, 1472 ConstructedInterpolants, 0 QuantifiedInterpolants, 349476 SizeOfPredicates, 36 NumberOfNonLiveVariables, 9882 ConjunctsInSsa, 123 ConjunctsInUnsatCore, 14 InterpolantComputations, 12 PerfectInterpolantSequences, 175/184 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...