/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 NOT_INCREMENTALLY -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product56.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 10:37:59,299 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 10:37:59,301 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 10:37:59,314 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 10:37:59,314 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 10:37:59,315 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 10:37:59,316 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 10:37:59,318 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 10:37:59,320 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 10:37:59,321 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 10:37:59,322 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 10:37:59,323 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 10:37:59,324 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 10:37:59,325 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 10:37:59,326 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 10:37:59,327 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 10:37:59,328 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 10:37:59,329 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 10:37:59,330 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 10:37:59,332 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 10:37:59,334 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 10:37:59,335 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 10:37:59,336 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 10:37:59,337 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 10:37:59,340 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-21 10:37:59,340 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-21 10:37:59,340 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-21 10:37:59,341 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-21 10:37:59,342 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-21 10:37:59,342 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-21 10:37:59,343 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-21 10:37:59,343 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-21 10:37:59,344 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-21 10:37:59,345 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-21 10:37:59,346 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-21 10:37:59,346 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-21 10:37:59,347 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-21 10:37:59,347 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-21 10:37:59,347 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 10:37:59,348 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 10:37:59,349 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 10:37:59,350 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 10:37:59,364 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 10:37:59,365 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 10:37:59,368 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 10:37:59,368 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 10:37:59,369 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 10:37:59,369 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 10:37:59,369 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 10:37:59,370 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 10:37:59,370 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 10:37:59,370 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 10:37:59,370 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 10:37:59,370 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 10:37:59,371 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 10:37:59,371 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 10:37:59,371 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 10:37:59,372 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 10:37:59,373 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 10:37:59,373 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 10:37:59,373 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 10:37:59,373 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 10:37:59,373 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 10:37:59,374 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 10:37:59,374 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 10:37:59,374 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 10:37:59,375 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 10:37:59,375 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 10:37:59,375 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:37:59,375 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 10:37:59,375 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 10:37:59,376 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 -> NOT_INCREMENTALLY [2020-07-21 10:37:59,656 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 10:37:59,675 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 10:37:59,679 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 10:37:59,680 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 10:37:59,681 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 10:37:59,682 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product56.cil.c [2020-07-21 10:37:59,753 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d905795e2/b951e2a39b6c47d8be92f7dfa5df6955/FLAG826222f4a [2020-07-21 10:38:00,315 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 10:38:00,329 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product56.cil.c [2020-07-21 10:38:00,348 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d905795e2/b951e2a39b6c47d8be92f7dfa5df6955/FLAG826222f4a [2020-07-21 10:38:00,633 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d905795e2/b951e2a39b6c47d8be92f7dfa5df6955 [2020-07-21 10:38:00,642 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 10:38:00,645 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 10:38:00,646 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 10:38:00,646 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 10:38:00,649 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 10:38:00,650 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:38:00" (1/1) ... [2020-07-21 10:38:00,653 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e2abe9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:38:00, skipping insertion in model container [2020-07-21 10:38:00,654 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:38:00" (1/1) ... [2020-07-21 10:38:00,661 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 10:38:00,722 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 10:38:01,156 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 10:38:01,177 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 10:38:01,312 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 10:38:01,345 INFO L208 MainTranslator]: Completed translation [2020-07-21 10:38:01,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:38:01 WrapperNode [2020-07-21 10:38:01,345 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 10:38:01,346 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 10:38:01,346 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 10:38:01,346 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 10:38:01,361 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:38:01" (1/1) ... [2020-07-21 10:38:01,361 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:38:01" (1/1) ... [2020-07-21 10:38:01,381 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:38:01" (1/1) ... [2020-07-21 10:38:01,381 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:38:01" (1/1) ... [2020-07-21 10:38:01,411 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:38:01" (1/1) ... [2020-07-21 10:38:01,428 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:38:01" (1/1) ... [2020-07-21 10:38:01,434 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:38:01" (1/1) ... [2020-07-21 10:38:01,453 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 10:38:01,457 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 10:38:01,457 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 10:38:01,457 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 10:38:01,458 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:38:01" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 10:38:01,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 10:38:01,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 10:38:01,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-21 10:38:01,547 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-21 10:38:01,547 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-21 10:38:01,547 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-07-21 10:38:01,548 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-07-21 10:38:01,548 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-21 10:38:01,548 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-21 10:38:01,549 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-21 10:38:01,549 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-21 10:38:01,549 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-21 10:38:01,550 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-21 10:38:01,550 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-21 10:38:01,550 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-07-21 10:38:01,551 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-21 10:38:01,551 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-07-21 10:38:01,551 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-21 10:38:01,551 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-21 10:38:01,552 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-21 10:38:01,552 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-21 10:38:01,552 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-21 10:38:01,552 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-21 10:38:01,552 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-21 10:38:01,553 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-07-21 10:38:01,553 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-21 10:38:01,553 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-21 10:38:01,554 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-21 10:38:01,554 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-21 10:38:01,554 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 10:38:01,554 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-21 10:38:01,554 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-21 10:38:01,554 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-21 10:38:01,555 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-21 10:38:01,555 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-21 10:38:01,555 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-21 10:38:01,555 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-21 10:38:01,555 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-21 10:38:01,556 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-07-21 10:38:01,556 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-21 10:38:01,556 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-21 10:38:01,556 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-21 10:38:01,556 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-21 10:38:01,557 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 10:38:01,557 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 10:38:01,557 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-21 10:38:01,557 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-21 10:38:01,557 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-21 10:38:01,557 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-21 10:38:01,558 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-21 10:38:01,558 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-07-21 10:38:01,558 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-21 10:38:01,558 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-21 10:38:01,558 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-21 10:38:01,558 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-21 10:38:01,558 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-21 10:38:01,559 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-21 10:38:01,559 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-07-21 10:38:01,559 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-07-21 10:38:01,559 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-21 10:38:01,559 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-21 10:38:01,560 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-21 10:38:01,560 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-07-21 10:38:01,560 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-07-21 10:38:01,560 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-07-21 10:38:01,560 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-21 10:38:01,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-21 10:38:01,561 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-21 10:38:01,561 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-21 10:38:01,561 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-21 10:38:01,561 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-21 10:38:01,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-21 10:38:01,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-21 10:38:01,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-21 10:38:01,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-21 10:38:01,563 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-21 10:38:01,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-21 10:38:01,563 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-21 10:38:01,564 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-21 10:38:01,564 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-21 10:38:01,564 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-21 10:38:01,564 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-21 10:38:01,564 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-21 10:38:01,565 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-21 10:38:01,565 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-21 10:38:01,565 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-21 10:38:01,566 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-21 10:38:01,566 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-21 10:38:01,567 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-21 10:38:01,567 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-21 10:38:01,567 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-21 10:38:01,567 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-21 10:38:01,567 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-21 10:38:01,567 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-21 10:38:01,567 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-21 10:38:01,568 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 10:38:01,568 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-21 10:38:01,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 10:38:01,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-21 10:38:01,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 10:38:02,772 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 10:38:02,772 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-21 10:38:02,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:38:02 BoogieIcfgContainer [2020-07-21 10:38:02,778 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 10:38:02,779 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 10:38:02,779 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 10:38:02,782 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 10:38:02,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 10:38:00" (1/3) ... [2020-07-21 10:38:02,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b81a095 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:38:02, skipping insertion in model container [2020-07-21 10:38:02,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:38:01" (2/3) ... [2020-07-21 10:38:02,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b81a095 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:38:02, skipping insertion in model container [2020-07-21 10:38:02,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:38:02" (3/3) ... [2020-07-21 10:38:02,786 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product56.cil.c [2020-07-21 10:38:02,797 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 10:38:02,805 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 10:38:02,815 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 10:38:02,837 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 10:38:02,838 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 10:38:02,838 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 10:38:02,838 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 10:38:02,839 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 10:38:02,839 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 10:38:02,839 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 10:38:02,839 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 10:38:02,863 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states. [2020-07-21 10:38:02,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-21 10:38:02,874 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:38:02,875 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 10:38:02,876 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:38:02,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:38:02,882 INFO L82 PathProgramCache]: Analyzing trace with hash -559348317, now seen corresponding path program 1 times [2020-07-21 10:38:02,891 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:38:02,891 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1067887524] [2020-07-21 10:38:02,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:38:03,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:38:03,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 649 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-21 10:38:03,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:38:03,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 10:38:03,195 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:38:03,196 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1067887524] [2020-07-21 10:38:03,197 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:38:03,198 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-21 10:38:03,199 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900870054] [2020-07-21 10:38:03,204 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-21 10:38:03,205 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:38:03,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-21 10:38:03,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 10:38:03,223 INFO L87 Difference]: Start difference. First operand 199 states. Second operand 2 states. [2020-07-21 10:38:03,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:38:03,274 INFO L93 Difference]: Finished difference Result 312 states and 385 transitions. [2020-07-21 10:38:03,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-21 10:38:03,275 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2020-07-21 10:38:03,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:38:03,295 INFO L225 Difference]: With dead ends: 312 [2020-07-21 10:38:03,295 INFO L226 Difference]: Without dead ends: 156 [2020-07-21 10:38:03,304 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 10:38:03,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2020-07-21 10:38:03,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2020-07-21 10:38:03,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2020-07-21 10:38:03,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 184 transitions. [2020-07-21 10:38:03,400 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 184 transitions. Word has length 46 [2020-07-21 10:38:03,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:38:03,400 INFO L479 AbstractCegarLoop]: Abstraction has 156 states and 184 transitions. [2020-07-21 10:38:03,400 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-21 10:38:03,401 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 184 transitions. [2020-07-21 10:38:03,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-07-21 10:38:03,405 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:38:03,405 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 10:38:03,620 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:38:03,621 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:38:03,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:38:03,621 INFO L82 PathProgramCache]: Analyzing trace with hash -1620740414, now seen corresponding path program 1 times [2020-07-21 10:38:03,622 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:38:03,622 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [397445024] [2020-07-21 10:38:03,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:38:03,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:38:03,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 650 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-21 10:38:03,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:38:03,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 10:38:03,881 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:38:03,882 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [397445024] [2020-07-21 10:38:03,882 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:38:03,882 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 10:38:03,883 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593515253] [2020-07-21 10:38:03,889 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 10:38:03,890 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:38:03,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 10:38:03,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 10:38:03,891 INFO L87 Difference]: Start difference. First operand 156 states and 184 transitions. Second operand 3 states. [2020-07-21 10:38:03,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:38:03,941 INFO L93 Difference]: Finished difference Result 251 states and 295 transitions. [2020-07-21 10:38:03,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 10:38:03,944 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2020-07-21 10:38:03,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:38:03,948 INFO L225 Difference]: With dead ends: 251 [2020-07-21 10:38:03,948 INFO L226 Difference]: Without dead ends: 147 [2020-07-21 10:38:03,953 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 10:38:03,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2020-07-21 10:38:03,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2020-07-21 10:38:03,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2020-07-21 10:38:03,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 172 transitions. [2020-07-21 10:38:03,981 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 172 transitions. Word has length 47 [2020-07-21 10:38:03,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:38:03,981 INFO L479 AbstractCegarLoop]: Abstraction has 147 states and 172 transitions. [2020-07-21 10:38:03,981 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 10:38:03,982 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 172 transitions. [2020-07-21 10:38:03,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-21 10:38:03,986 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:38:03,987 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 10:38:04,194 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:38:04,195 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:38:04,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:38:04,196 INFO L82 PathProgramCache]: Analyzing trace with hash -396868600, now seen corresponding path program 1 times [2020-07-21 10:38:04,197 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:38:04,197 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1778381553] [2020-07-21 10:38:04,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:38:04,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:38:04,387 INFO L263 TraceCheckSpWp]: Trace formula consists of 664 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 10:38:04,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:38:04,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 10:38:04,421 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:38:04,421 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1778381553] [2020-07-21 10:38:04,421 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:38:04,421 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 10:38:04,422 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290744406] [2020-07-21 10:38:04,422 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 10:38:04,422 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:38:04,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 10:38:04,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 10:38:04,423 INFO L87 Difference]: Start difference. First operand 147 states and 172 transitions. Second operand 3 states. [2020-07-21 10:38:04,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:38:04,461 INFO L93 Difference]: Finished difference Result 389 states and 467 transitions. [2020-07-21 10:38:04,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 10:38:04,462 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-07-21 10:38:04,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:38:04,466 INFO L225 Difference]: With dead ends: 389 [2020-07-21 10:38:04,466 INFO L226 Difference]: Without dead ends: 266 [2020-07-21 10:38:04,467 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 10:38:04,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-07-21 10:38:04,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 260. [2020-07-21 10:38:04,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 260 states. [2020-07-21 10:38:04,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 311 transitions. [2020-07-21 10:38:04,499 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 311 transitions. Word has length 52 [2020-07-21 10:38:04,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:38:04,499 INFO L479 AbstractCegarLoop]: Abstraction has 260 states and 311 transitions. [2020-07-21 10:38:04,500 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 10:38:04,500 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 311 transitions. [2020-07-21 10:38:04,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-07-21 10:38:04,504 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:38:04,505 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] [2020-07-21 10:38:04,717 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:38:04,718 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:38:04,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:38:04,719 INFO L82 PathProgramCache]: Analyzing trace with hash -1317156286, now seen corresponding path program 1 times [2020-07-21 10:38:04,719 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:38:04,720 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1541403799] [2020-07-21 10:38:04,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:38:04,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:38:04,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 678 conjuncts, 14 conjunts are in the unsatisfiable core [2020-07-21 10:38:04,893 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:38:04,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 10:38:04,968 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:38:04,968 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1541403799] [2020-07-21 10:38:04,968 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:38:04,968 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 10:38:04,969 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701372855] [2020-07-21 10:38:04,970 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 10:38:04,970 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:38:04,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 10:38:04,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-21 10:38:04,971 INFO L87 Difference]: Start difference. First operand 260 states and 311 transitions. Second operand 6 states. [2020-07-21 10:38:05,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:38:05,361 INFO L93 Difference]: Finished difference Result 713 states and 895 transitions. [2020-07-21 10:38:05,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 10:38:05,362 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 57 [2020-07-21 10:38:05,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:38:05,367 INFO L225 Difference]: With dead ends: 713 [2020-07-21 10:38:05,367 INFO L226 Difference]: Without dead ends: 477 [2020-07-21 10:38:05,369 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-21 10:38:05,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2020-07-21 10:38:05,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 477. [2020-07-21 10:38:05,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 477 states. [2020-07-21 10:38:05,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 596 transitions. [2020-07-21 10:38:05,414 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 596 transitions. Word has length 57 [2020-07-21 10:38:05,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:38:05,414 INFO L479 AbstractCegarLoop]: Abstraction has 477 states and 596 transitions. [2020-07-21 10:38:05,414 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 10:38:05,415 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 596 transitions. [2020-07-21 10:38:05,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-07-21 10:38:05,417 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:38:05,417 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] [2020-07-21 10:38:05,631 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:38:05,631 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:38:05,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:38:05,632 INFO L82 PathProgramCache]: Analyzing trace with hash -1811637144, now seen corresponding path program 1 times [2020-07-21 10:38:05,632 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:38:05,633 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1063479234] [2020-07-21 10:38:05,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:38:05,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:38:05,806 INFO L263 TraceCheckSpWp]: Trace formula consists of 687 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-21 10:38:05,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:38:05,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 10:38:05,875 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:38:05,875 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1063479234] [2020-07-21 10:38:05,876 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:38:05,876 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 10:38:05,876 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061974192] [2020-07-21 10:38:05,877 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 10:38:05,877 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:38:05,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 10:38:05,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-21 10:38:05,878 INFO L87 Difference]: Start difference. First operand 477 states and 596 transitions. Second operand 6 states. [2020-07-21 10:38:06,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:38:06,162 INFO L93 Difference]: Finished difference Result 1076 states and 1425 transitions. [2020-07-21 10:38:06,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 10:38:06,165 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 61 [2020-07-21 10:38:06,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:38:06,171 INFO L225 Difference]: With dead ends: 1076 [2020-07-21 10:38:06,171 INFO L226 Difference]: Without dead ends: 623 [2020-07-21 10:38:06,173 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-21 10:38:06,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623 states. [2020-07-21 10:38:06,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623 to 605. [2020-07-21 10:38:06,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 605 states. [2020-07-21 10:38:06,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 767 transitions. [2020-07-21 10:38:06,233 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 767 transitions. Word has length 61 [2020-07-21 10:38:06,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:38:06,234 INFO L479 AbstractCegarLoop]: Abstraction has 605 states and 767 transitions. [2020-07-21 10:38:06,234 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 10:38:06,234 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 767 transitions. [2020-07-21 10:38:06,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-07-21 10:38:06,237 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:38:06,238 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 10:38:06,450 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:38:06,451 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:38:06,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:38:06,452 INFO L82 PathProgramCache]: Analyzing trace with hash 2053206357, now seen corresponding path program 1 times [2020-07-21 10:38:06,452 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:38:06,453 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2089221361] [2020-07-21 10:38:06,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:38:06,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:38:06,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 822 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-21 10:38:06,629 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:38:06,652 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-07-21 10:38:06,652 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:38:06,653 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2089221361] [2020-07-21 10:38:06,653 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:38:06,653 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 10:38:06,653 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416373429] [2020-07-21 10:38:06,654 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 10:38:06,654 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:38:06,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 10:38:06,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 10:38:06,655 INFO L87 Difference]: Start difference. First operand 605 states and 767 transitions. Second operand 3 states. [2020-07-21 10:38:06,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:38:06,756 INFO L93 Difference]: Finished difference Result 993 states and 1261 transitions. [2020-07-21 10:38:06,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 10:38:06,756 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 118 [2020-07-21 10:38:06,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:38:06,760 INFO L225 Difference]: With dead ends: 993 [2020-07-21 10:38:06,761 INFO L226 Difference]: Without dead ends: 412 [2020-07-21 10:38:06,763 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 10:38:06,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2020-07-21 10:38:06,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 402. [2020-07-21 10:38:06,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 402 states. [2020-07-21 10:38:06,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 496 transitions. [2020-07-21 10:38:06,788 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 496 transitions. Word has length 118 [2020-07-21 10:38:06,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:38:06,789 INFO L479 AbstractCegarLoop]: Abstraction has 402 states and 496 transitions. [2020-07-21 10:38:06,789 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 10:38:06,790 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 496 transitions. [2020-07-21 10:38:06,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-07-21 10:38:06,796 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:38:06,796 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 10:38:06,997 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:38:06,997 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:38:06,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:38:06,998 INFO L82 PathProgramCache]: Analyzing trace with hash -629504636, now seen corresponding path program 1 times [2020-07-21 10:38:06,998 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:38:06,998 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1549236225] [2020-07-21 10:38:06,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:38:07,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:38:07,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 881 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 10:38:07,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:38:07,263 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 24 proven. 8 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-07-21 10:38:07,264 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 10:38:07,558 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 21 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-07-21 10:38:07,558 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1549236225] [2020-07-21 10:38:07,558 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 10:38:07,559 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 10:38:07,559 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846300181] [2020-07-21 10:38:07,560 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 10:38:07,560 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:38:07,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 10:38:07,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 10:38:07,561 INFO L87 Difference]: Start difference. First operand 402 states and 496 transitions. Second operand 6 states. [2020-07-21 10:38:08,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:38:08,253 INFO L93 Difference]: Finished difference Result 842 states and 1061 transitions. [2020-07-21 10:38:08,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 10:38:08,254 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 146 [2020-07-21 10:38:08,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:38:08,261 INFO L225 Difference]: With dead ends: 842 [2020-07-21 10:38:08,261 INFO L226 Difference]: Without dead ends: 464 [2020-07-21 10:38:08,266 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 287 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 10:38:08,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2020-07-21 10:38:08,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 424. [2020-07-21 10:38:08,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 424 states. [2020-07-21 10:38:08,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 493 transitions. [2020-07-21 10:38:08,299 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 493 transitions. Word has length 146 [2020-07-21 10:38:08,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:38:08,300 INFO L479 AbstractCegarLoop]: Abstraction has 424 states and 493 transitions. [2020-07-21 10:38:08,300 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 10:38:08,300 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 493 transitions. [2020-07-21 10:38:08,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-07-21 10:38:08,306 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:38:08,307 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 10:38:08,520 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:38:08,521 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:38:08,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:38:08,522 INFO L82 PathProgramCache]: Analyzing trace with hash -1930733102, now seen corresponding path program 1 times [2020-07-21 10:38:08,523 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:38:08,523 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1744451565] [2020-07-21 10:38:08,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:38:08,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:38:08,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 902 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 10:38:08,709 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:38:08,744 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-07-21 10:38:08,744 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:38:08,744 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1744451565] [2020-07-21 10:38:08,745 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:38:08,745 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 10:38:08,745 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113578314] [2020-07-21 10:38:08,746 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 10:38:08,746 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:38:08,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 10:38:08,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-21 10:38:08,746 INFO L87 Difference]: Start difference. First operand 424 states and 493 transitions. Second operand 6 states. [2020-07-21 10:38:08,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:38:08,795 INFO L93 Difference]: Finished difference Result 834 states and 987 transitions. [2020-07-21 10:38:08,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 10:38:08,795 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 155 [2020-07-21 10:38:08,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:38:08,798 INFO L225 Difference]: With dead ends: 834 [2020-07-21 10:38:08,799 INFO L226 Difference]: Without dead ends: 434 [2020-07-21 10:38:08,800 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-21 10:38:08,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2020-07-21 10:38:08,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 434. [2020-07-21 10:38:08,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 434 states. [2020-07-21 10:38:08,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 504 transitions. [2020-07-21 10:38:08,822 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 504 transitions. Word has length 155 [2020-07-21 10:38:08,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:38:08,822 INFO L479 AbstractCegarLoop]: Abstraction has 434 states and 504 transitions. [2020-07-21 10:38:08,822 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 10:38:08,823 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 504 transitions. [2020-07-21 10:38:08,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-07-21 10:38:08,825 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:38:08,825 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 10:38:09,038 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:38:09,039 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:38:09,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:38:09,040 INFO L82 PathProgramCache]: Analyzing trace with hash 497525520, now seen corresponding path program 1 times [2020-07-21 10:38:09,040 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:38:09,041 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1301935544] [2020-07-21 10:38:09,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:38:09,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:38:09,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 903 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-21 10:38:09,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:38:09,279 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-07-21 10:38:09,280 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:38:09,280 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1301935544] [2020-07-21 10:38:09,280 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:38:09,280 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 10:38:09,281 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387279188] [2020-07-21 10:38:09,281 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 10:38:09,281 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:38:09,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 10:38:09,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 10:38:09,282 INFO L87 Difference]: Start difference. First operand 434 states and 504 transitions. Second operand 5 states. [2020-07-21 10:38:09,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:38:09,316 INFO L93 Difference]: Finished difference Result 833 states and 990 transitions. [2020-07-21 10:38:09,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 10:38:09,316 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 155 [2020-07-21 10:38:09,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:38:09,319 INFO L225 Difference]: With dead ends: 833 [2020-07-21 10:38:09,319 INFO L226 Difference]: Without dead ends: 423 [2020-07-21 10:38:09,321 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 10:38:09,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2020-07-21 10:38:09,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 423. [2020-07-21 10:38:09,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 423 states. [2020-07-21 10:38:09,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 490 transitions. [2020-07-21 10:38:09,341 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 490 transitions. Word has length 155 [2020-07-21 10:38:09,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:38:09,341 INFO L479 AbstractCegarLoop]: Abstraction has 423 states and 490 transitions. [2020-07-21 10:38:09,341 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 10:38:09,341 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 490 transitions. [2020-07-21 10:38:09,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-07-21 10:38:09,344 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:38:09,344 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 10:38:09,559 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:38:09,560 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:38:09,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:38:09,561 INFO L82 PathProgramCache]: Analyzing trace with hash -1961598929, now seen corresponding path program 1 times [2020-07-21 10:38:09,561 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:38:09,562 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [472801652] [2020-07-21 10:38:09,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:38:09,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:38:09,742 INFO L263 TraceCheckSpWp]: Trace formula consists of 903 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-21 10:38:09,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:38:09,796 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 10:38:09,796 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:38:09,796 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [472801652] [2020-07-21 10:38:09,796 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:38:09,797 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 10:38:09,797 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741311934] [2020-07-21 10:38:09,797 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 10:38:09,797 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:38:09,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 10:38:09,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-21 10:38:09,798 INFO L87 Difference]: Start difference. First operand 423 states and 490 transitions. Second operand 6 states. [2020-07-21 10:38:10,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:38:10,792 INFO L93 Difference]: Finished difference Result 1210 states and 1483 transitions. [2020-07-21 10:38:10,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 10:38:10,792 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 155 [2020-07-21 10:38:10,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:38:10,797 INFO L225 Difference]: With dead ends: 1210 [2020-07-21 10:38:10,797 INFO L226 Difference]: Without dead ends: 811 [2020-07-21 10:38:10,799 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-21 10:38:10,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 811 states. [2020-07-21 10:38:10,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 811 to 782. [2020-07-21 10:38:10,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 782 states. [2020-07-21 10:38:10,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 782 states to 782 states and 922 transitions. [2020-07-21 10:38:10,845 INFO L78 Accepts]: Start accepts. Automaton has 782 states and 922 transitions. Word has length 155 [2020-07-21 10:38:10,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:38:10,846 INFO L479 AbstractCegarLoop]: Abstraction has 782 states and 922 transitions. [2020-07-21 10:38:10,846 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 10:38:10,846 INFO L276 IsEmpty]: Start isEmpty. Operand 782 states and 922 transitions. [2020-07-21 10:38:10,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-07-21 10:38:10,849 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:38:10,849 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 10:38:11,062 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:38:11,063 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:38:11,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:38:11,063 INFO L82 PathProgramCache]: Analyzing trace with hash -1745517035, now seen corresponding path program 1 times [2020-07-21 10:38:11,064 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:38:11,064 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [695618278] [2020-07-21 10:38:11,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:38:11,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:38:11,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 912 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 10:38:11,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:38:11,389 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 19 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 10:38:11,389 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 10:38:11,855 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 19 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-07-21 10:38:11,856 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [695618278] [2020-07-21 10:38:11,856 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 10:38:11,856 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2020-07-21 10:38:11,857 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789451195] [2020-07-21 10:38:11,858 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-21 10:38:11,858 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:38:11,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-21 10:38:11,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-07-21 10:38:11,861 INFO L87 Difference]: Start difference. First operand 782 states and 922 transitions. Second operand 12 states. [2020-07-21 10:38:13,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:38:13,567 INFO L93 Difference]: Finished difference Result 2102 states and 2649 transitions. [2020-07-21 10:38:13,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-07-21 10:38:13,568 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 159 [2020-07-21 10:38:13,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:38:13,577 INFO L225 Difference]: With dead ends: 2102 [2020-07-21 10:38:13,577 INFO L226 Difference]: Without dead ends: 1344 [2020-07-21 10:38:13,580 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 306 SyntacticMatches, 6 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=148, Invalid=358, Unknown=0, NotChecked=0, Total=506 [2020-07-21 10:38:13,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1344 states. [2020-07-21 10:38:13,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1344 to 1012. [2020-07-21 10:38:13,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1012 states. [2020-07-21 10:38:13,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1012 states to 1012 states and 1182 transitions. [2020-07-21 10:38:13,679 INFO L78 Accepts]: Start accepts. Automaton has 1012 states and 1182 transitions. Word has length 159 [2020-07-21 10:38:13,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:38:13,680 INFO L479 AbstractCegarLoop]: Abstraction has 1012 states and 1182 transitions. [2020-07-21 10:38:13,680 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-21 10:38:13,680 INFO L276 IsEmpty]: Start isEmpty. Operand 1012 states and 1182 transitions. [2020-07-21 10:38:13,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2020-07-21 10:38:13,685 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:38:13,685 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 10:38:13,898 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:38:13,899 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:38:13,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:38:13,900 INFO L82 PathProgramCache]: Analyzing trace with hash 1602854524, now seen corresponding path program 2 times [2020-07-21 10:38:13,900 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:38:13,901 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [514051006] [2020-07-21 10:38:13,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:38:14,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:38:14,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 1077 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-21 10:38:14,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:38:14,201 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-21 10:38:14,201 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 10:38:14,264 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 114 proven. 18 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-21 10:38:14,265 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 10:38:14,576 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 10:38:14,685 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-07-21 10:38:14,686 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 10:38:14,743 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-07-21 10:38:14,744 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 10:38:14,767 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-07-21 10:38:14,767 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 10:38:14,831 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 10:38:15,135 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 50 proven. 32 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2020-07-21 10:38:15,136 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [514051006] [2020-07-21 10:38:15,136 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 10:38:15,136 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 16 [2020-07-21 10:38:15,136 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883539593] [2020-07-21 10:38:15,140 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-07-21 10:38:15,141 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:38:15,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-07-21 10:38:15,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2020-07-21 10:38:15,142 INFO L87 Difference]: Start difference. First operand 1012 states and 1182 transitions. Second operand 16 states. [2020-07-21 10:38:17,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:38:17,813 INFO L93 Difference]: Finished difference Result 2927 states and 3689 transitions. [2020-07-21 10:38:17,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-07-21 10:38:17,813 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 229 [2020-07-21 10:38:17,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:38:17,833 INFO L225 Difference]: With dead ends: 2927 [2020-07-21 10:38:17,834 INFO L226 Difference]: Without dead ends: 2036 [2020-07-21 10:38:17,838 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 474 GetRequests, 448 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=174, Invalid=528, Unknown=0, NotChecked=0, Total=702 [2020-07-21 10:38:17,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2036 states. [2020-07-21 10:38:17,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2036 to 1490. [2020-07-21 10:38:17,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1490 states. [2020-07-21 10:38:18,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1490 states to 1490 states and 1731 transitions. [2020-07-21 10:38:18,002 INFO L78 Accepts]: Start accepts. Automaton has 1490 states and 1731 transitions. Word has length 229 [2020-07-21 10:38:18,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:38:18,003 INFO L479 AbstractCegarLoop]: Abstraction has 1490 states and 1731 transitions. [2020-07-21 10:38:18,003 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-07-21 10:38:18,004 INFO L276 IsEmpty]: Start isEmpty. Operand 1490 states and 1731 transitions. [2020-07-21 10:38:18,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2020-07-21 10:38:18,012 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:38:18,013 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 10:38:18,228 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:38:18,229 INFO L427 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:38:18,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:38:18,229 INFO L82 PathProgramCache]: Analyzing trace with hash -1302818758, now seen corresponding path program 1 times [2020-07-21 10:38:18,229 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:38:18,230 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [179528311] [2020-07-21 10:38:18,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:38:18,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:38:18,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 1078 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 10:38:18,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:38:18,629 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2020-07-21 10:38:18,629 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:38:18,630 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [179528311] [2020-07-21 10:38:18,630 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:38:18,630 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 10:38:18,631 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727887544] [2020-07-21 10:38:18,631 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 10:38:18,632 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:38:18,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 10:38:18,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-21 10:38:18,633 INFO L87 Difference]: Start difference. First operand 1490 states and 1731 transitions. Second operand 6 states. [2020-07-21 10:38:18,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:38:18,713 INFO L93 Difference]: Finished difference Result 1935 states and 2243 transitions. [2020-07-21 10:38:18,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 10:38:18,714 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 229 [2020-07-21 10:38:18,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:38:18,717 INFO L225 Difference]: With dead ends: 1935 [2020-07-21 10:38:18,717 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 10:38:18,726 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-21 10:38:18,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 10:38:18,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 10:38:18,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 10:38:18,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 10:38:18,728 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 229 [2020-07-21 10:38:18,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:38:18,729 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 10:38:18,729 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 10:38:18,729 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 10:38:18,729 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 10:38:18,942 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:38:18,946 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 10:38:21,013 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 17 [2020-07-21 10:38:21,235 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 19 [2020-07-21 10:38:21,342 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 18 [2020-07-21 10:38:21,646 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 25 [2020-07-21 10:38:21,862 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 18 [2020-07-21 10:38:22,157 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 35 [2020-07-21 10:38:22,327 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 31 [2020-07-21 10:38:22,565 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 30 [2020-07-21 10:38:22,915 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 33 [2020-07-21 10:38:23,029 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 19 [2020-07-21 10:38:23,566 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 29 [2020-07-21 10:38:23,749 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 30 [2020-07-21 10:38:23,938 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 39 [2020-07-21 10:38:24,212 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 25 [2020-07-21 10:38:24,531 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 30 [2020-07-21 10:38:24,973 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 30 [2020-07-21 10:38:25,109 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 20 [2020-07-21 10:38:25,164 INFO L268 CegarLoopResult]: For program point L382(lines 382 386) no Hoare annotation was computed. [2020-07-21 10:38:25,165 INFO L268 CegarLoopResult]: For program point L382-1(lines 382 386) no Hoare annotation was computed. [2020-07-21 10:38:25,165 INFO L268 CegarLoopResult]: For program point L377(line 377) no Hoare annotation was computed. [2020-07-21 10:38:25,165 INFO L268 CegarLoopResult]: For program point L376-2(lines 376 397) no Hoare annotation was computed. [2020-07-21 10:38:25,165 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeFINAL(lines 351 406) no Hoare annotation was computed. [2020-07-21 10:38:25,165 INFO L268 CegarLoopResult]: For program point L398(lines 375 399) no Hoare annotation was computed. [2020-07-21 10:38:25,166 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeEXIT(lines 351 406) no Hoare annotation was computed. [2020-07-21 10:38:25,166 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeENTRY(lines 351 406) no Hoare annotation was computed. [2020-07-21 10:38:25,166 INFO L268 CegarLoopResult]: For program point L439(lines 439 443) no Hoare annotation was computed. [2020-07-21 10:38:25,166 INFO L268 CegarLoopResult]: For program point L439-1(lines 439 443) no Hoare annotation was computed. [2020-07-21 10:38:25,166 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetFINAL(lines 407 466) no Hoare annotation was computed. [2020-07-21 10:38:25,166 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-07-21 10:38:25,167 INFO L268 CegarLoopResult]: For program point L433-2(lines 433 458) no Hoare annotation was computed. [2020-07-21 10:38:25,167 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetENTRY(lines 407 466) no Hoare annotation was computed. [2020-07-21 10:38:25,167 INFO L268 CegarLoopResult]: For program point L459(lines 432 460) no Hoare annotation was computed. [2020-07-21 10:38:25,167 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetEXIT(lines 407 466) no Hoare annotation was computed. [2020-07-21 10:38:25,167 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-07-21 10:38:25,168 INFO L268 CegarLoopResult]: For program point L452-1(line 452) no Hoare annotation was computed. [2020-07-21 10:38:25,168 INFO L271 CegarLoopResult]: At program point select_helpersFINAL(lines 994 1000) the Hoare annotation is: true [2020-07-21 10:38:25,168 INFO L268 CegarLoopResult]: For program point select_helpersEXIT(lines 994 1000) no Hoare annotation was computed. [2020-07-21 10:38:25,168 INFO L268 CegarLoopResult]: For program point valid_productEXIT(lines 1001 1009) no Hoare annotation was computed. [2020-07-21 10:38:25,168 INFO L271 CegarLoopResult]: At program point valid_productENTRY(lines 1001 1009) the Hoare annotation is: true [2020-07-21 10:38:25,168 INFO L268 CegarLoopResult]: For program point valid_productFINAL(lines 1001 1009) no Hoare annotation was computed. [2020-07-21 10:38:25,169 INFO L271 CegarLoopResult]: At program point __utac_acc__Specification4_spec__1ENTRY(lines 739 763) the Hoare annotation is: true [2020-07-21 10:38:25,169 INFO L268 CegarLoopResult]: For program point __utac_acc__Specification4_spec__1EXIT(lines 739 763) no Hoare annotation was computed. [2020-07-21 10:38:25,169 INFO L264 CegarLoopResult]: At program point L753(line 753) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse2 (not (= 0 ~pumpRunning~0))) (.cse1 (not (<= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2) (or .cse0 (not (= 0 ~systemActive~0)) .cse2) (or .cse1 (not (<= 2 ~waterLevel~0)) (not (<= 1 ~pumpRunning~0))))) [2020-07-21 10:38:25,169 INFO L268 CegarLoopResult]: For program point L751(lines 751 757) no Hoare annotation was computed. [2020-07-21 10:38:25,169 INFO L264 CegarLoopResult]: At program point L749(line 749) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse2 (not (= 0 ~pumpRunning~0))) (.cse1 (not (<= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2) (or .cse0 (not (= 0 ~systemActive~0)) .cse2) (or .cse1 (not (<= 2 ~waterLevel~0)) (not (<= 1 ~pumpRunning~0))))) [2020-07-21 10:38:25,170 INFO L268 CegarLoopResult]: For program point L749-1(line 749) no Hoare annotation was computed. [2020-07-21 10:38:25,170 INFO L268 CegarLoopResult]: For program point L747(lines 747 760) no Hoare annotation was computed. [2020-07-21 10:38:25,170 INFO L268 CegarLoopResult]: For program point L747-1(lines 739 763) no Hoare annotation was computed. [2020-07-21 10:38:25,170 INFO L271 CegarLoopResult]: At program point L745(line 745) the Hoare annotation is: true [2020-07-21 10:38:25,170 INFO L268 CegarLoopResult]: For program point L745-1(line 745) no Hoare annotation was computed. [2020-07-21 10:38:25,170 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 840 862) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 10:38:25,170 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 840 862) no Hoare annotation was computed. [2020-07-21 10:38:25,171 INFO L264 CegarLoopResult]: At program point L852(line 852) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 10:38:25,171 INFO L264 CegarLoopResult]: At program point L852-1(line 852) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 10:38:25,171 INFO L268 CegarLoopResult]: For program point L850(lines 850 857) no Hoare annotation was computed. [2020-07-21 10:38:25,171 INFO L268 CegarLoopResult]: For program point L850-1(lines 850 857) no Hoare annotation was computed. [2020-07-21 10:38:25,171 INFO L268 CegarLoopResult]: For program point L848(line 848) no Hoare annotation was computed. [2020-07-21 10:38:25,171 INFO L264 CegarLoopResult]: At program point L847(line 847) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 10:38:25,172 INFO L264 CegarLoopResult]: At program point L846(line 846) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 10:38:25,172 INFO L264 CegarLoopResult]: At program point L846-1(line 846) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 10:38:25,172 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 840 862) no Hoare annotation was computed. [2020-07-21 10:38:25,172 INFO L268 CegarLoopResult]: For program point L801(line 801) no Hoare annotation was computed. [2020-07-21 10:38:25,172 INFO L268 CegarLoopResult]: For program point Specification2EXIT(lines 796 819) no Hoare annotation was computed. [2020-07-21 10:38:25,172 INFO L268 CegarLoopResult]: For program point Specification2ENTRY(lines 796 819) no Hoare annotation was computed. [2020-07-21 10:38:25,172 INFO L268 CegarLoopResult]: For program point Specification2FINAL(lines 796 819) no Hoare annotation was computed. [2020-07-21 10:38:25,172 INFO L268 CegarLoopResult]: For program point L814(line 814) no Hoare annotation was computed. [2020-07-21 10:38:25,172 INFO L268 CegarLoopResult]: For program point L813(line 813) no Hoare annotation was computed. [2020-07-21 10:38:25,173 INFO L268 CegarLoopResult]: For program point L812(line 812) no Hoare annotation was computed. [2020-07-21 10:38:25,173 INFO L268 CegarLoopResult]: For program point L811(line 811) no Hoare annotation was computed. [2020-07-21 10:38:25,173 INFO L268 CegarLoopResult]: For program point L810(line 810) no Hoare annotation was computed. [2020-07-21 10:38:25,173 INFO L268 CegarLoopResult]: For program point L809(line 809) no Hoare annotation was computed. [2020-07-21 10:38:25,173 INFO L268 CegarLoopResult]: For program point L808(line 808) no Hoare annotation was computed. [2020-07-21 10:38:25,173 INFO L268 CegarLoopResult]: For program point L807(line 807) no Hoare annotation was computed. [2020-07-21 10:38:25,173 INFO L268 CegarLoopResult]: For program point L806(line 806) no Hoare annotation was computed. [2020-07-21 10:38:25,173 INFO L268 CegarLoopResult]: For program point L805(line 805) no Hoare annotation was computed. [2020-07-21 10:38:25,173 INFO L268 CegarLoopResult]: For program point L804(line 804) no Hoare annotation was computed. [2020-07-21 10:38:25,173 INFO L268 CegarLoopResult]: For program point L803(line 803) no Hoare annotation was computed. [2020-07-21 10:38:25,173 INFO L268 CegarLoopResult]: For program point L802(line 802) no Hoare annotation was computed. [2020-07-21 10:38:25,173 INFO L268 CegarLoopResult]: For program point stopSystemEXIT(lines 275 289) no Hoare annotation was computed. [2020-07-21 10:38:25,174 INFO L264 CegarLoopResult]: At program point L281(line 281) the Hoare annotation is: (and (or (not (<= 1 ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|))) (or (not (<= 1 |old(~pumpRunning~0)|)) (not (<= 2 ~waterLevel~0)) (<= |old(~pumpRunning~0)| ~pumpRunning~0))) [2020-07-21 10:38:25,174 INFO L268 CegarLoopResult]: For program point L279(lines 279 285) no Hoare annotation was computed. [2020-07-21 10:38:25,174 INFO L264 CegarLoopResult]: At program point stopSystemENTRY(lines 275 289) the Hoare annotation is: (and (or (not (<= 1 ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0)) (or (not (<= 1 |old(~pumpRunning~0)|)) (not (<= 2 ~waterLevel~0)) (<= |old(~pumpRunning~0)| ~pumpRunning~0))) [2020-07-21 10:38:25,174 INFO L268 CegarLoopResult]: For program point stopSystemFINAL(lines 275 289) no Hoare annotation was computed. [2020-07-21 10:38:25,174 INFO L268 CegarLoopResult]: For program point isPumpRunningEXIT(lines 192 200) no Hoare annotation was computed. [2020-07-21 10:38:25,174 INFO L271 CegarLoopResult]: At program point isPumpRunningENTRY(lines 192 200) the Hoare annotation is: true [2020-07-21 10:38:25,174 INFO L268 CegarLoopResult]: For program point isPumpRunningFINAL(lines 192 200) no Hoare annotation was computed. [2020-07-21 10:38:25,174 INFO L271 CegarLoopResult]: At program point isLowWaterLevelENTRY(lines 256 274) the Hoare annotation is: true [2020-07-21 10:38:25,174 INFO L268 CegarLoopResult]: For program point L265(lines 265 269) no Hoare annotation was computed. [2020-07-21 10:38:25,174 INFO L271 CegarLoopResult]: At program point L263(line 263) the Hoare annotation is: true [2020-07-21 10:38:25,174 INFO L268 CegarLoopResult]: For program point L265-2(lines 265 269) no Hoare annotation was computed. [2020-07-21 10:38:25,175 INFO L268 CegarLoopResult]: For program point L263-1(line 263) no Hoare annotation was computed. [2020-07-21 10:38:25,175 INFO L268 CegarLoopResult]: For program point isLowWaterLevelEXIT(lines 256 274) no Hoare annotation was computed. [2020-07-21 10:38:25,175 INFO L268 CegarLoopResult]: For program point isLowWaterLevelFINAL(lines 256 274) no Hoare annotation was computed. [2020-07-21 10:38:25,175 INFO L268 CegarLoopResult]: For program point L220(lines 220 228) no Hoare annotation was computed. [2020-07-21 10:38:25,175 INFO L268 CegarLoopResult]: For program point L220-2(lines 220 228) no Hoare annotation was computed. [2020-07-21 10:38:25,175 INFO L268 CegarLoopResult]: For program point L208(lines 208 216) no Hoare annotation was computed. [2020-07-21 10:38:25,175 INFO L268 CegarLoopResult]: For program point printPumpFINAL(lines 201 236) no Hoare annotation was computed. [2020-07-21 10:38:25,175 INFO L268 CegarLoopResult]: For program point L208-2(lines 208 216) no Hoare annotation was computed. [2020-07-21 10:38:25,175 INFO L268 CegarLoopResult]: For program point L231(line 231) no Hoare annotation was computed. [2020-07-21 10:38:25,175 INFO L268 CegarLoopResult]: For program point printPumpENTRY(lines 201 236) no Hoare annotation was computed. [2020-07-21 10:38:25,175 INFO L268 CegarLoopResult]: For program point L231-1(line 231) no Hoare annotation was computed. [2020-07-21 10:38:25,176 INFO L268 CegarLoopResult]: For program point printPumpEXIT(lines 201 236) no Hoare annotation was computed. [2020-07-21 10:38:25,176 INFO L268 CegarLoopResult]: For program point select_featuresEXIT(lines 987 993) no Hoare annotation was computed. [2020-07-21 10:38:25,176 INFO L271 CegarLoopResult]: At program point select_featuresFINAL(lines 987 993) the Hoare annotation is: true [2020-07-21 10:38:25,176 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setENTRY(lines 305 350) no Hoare annotation was computed. [2020-07-21 10:38:25,176 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setEXIT(lines 305 350) no Hoare annotation was computed. [2020-07-21 10:38:25,176 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setFINAL(lines 305 350) no Hoare annotation was computed. [2020-07-21 10:38:25,176 INFO L268 CegarLoopResult]: For program point L638(lines 638 645) no Hoare annotation was computed. [2020-07-21 10:38:25,176 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeFINAL(lines 618 663) no Hoare annotation was computed. [2020-07-21 10:38:25,176 INFO L268 CegarLoopResult]: For program point L632(lines 632 652) no Hoare annotation was computed. [2020-07-21 10:38:25,176 INFO L268 CegarLoopResult]: For program point L632-1(lines 632 652) no Hoare annotation was computed. [2020-07-21 10:38:25,177 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeENTRY(lines 618 663) no Hoare annotation was computed. [2020-07-21 10:38:25,177 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeEXIT(lines 618 663) no Hoare annotation was computed. [2020-07-21 10:38:25,177 INFO L264 CegarLoopResult]: At program point runTestENTRY(lines 827 836) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 10:38:25,177 INFO L268 CegarLoopResult]: For program point runTestEXIT(lines 827 836) no Hoare annotation was computed. [2020-07-21 10:38:25,177 INFO L268 CegarLoopResult]: For program point runTestFINAL(lines 827 836) no Hoare annotation was computed. [2020-07-21 10:38:25,177 INFO L271 CegarLoopResult]: At program point isMethaneAlarmENTRY(lines 181 191) the Hoare annotation is: true [2020-07-21 10:38:25,177 INFO L268 CegarLoopResult]: For program point isMethaneAlarmEXIT(lines 181 191) no Hoare annotation was computed. [2020-07-21 10:38:25,178 INFO L271 CegarLoopResult]: At program point L186(line 186) the Hoare annotation is: true [2020-07-21 10:38:25,178 INFO L268 CegarLoopResult]: For program point L186-1(line 186) no Hoare annotation was computed. [2020-07-21 10:38:25,178 INFO L268 CegarLoopResult]: For program point isMethaneAlarmFINAL(lines 181 191) no Hoare annotation was computed. [2020-07-21 10:38:25,178 INFO L264 CegarLoopResult]: At program point deactivatePumpENTRY(lines 173 180) the Hoare annotation is: (let ((.cse0 (not (<= 1 |old(~pumpRunning~0)|))) (.cse1 (<= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0)) .cse0 .cse1) (or .cse0 (not (<= 2 ~waterLevel~0)) .cse1))) [2020-07-21 10:38:25,178 INFO L268 CegarLoopResult]: For program point deactivatePumpEXIT(lines 173 180) no Hoare annotation was computed. [2020-07-21 10:38:25,178 INFO L268 CegarLoopResult]: For program point deactivatePumpFINAL(lines 173 180) no Hoare annotation was computed. [2020-07-21 10:38:25,178 INFO L268 CegarLoopResult]: For program point L956(lines 956 962) no Hoare annotation was computed. [2020-07-21 10:38:25,178 INFO L268 CegarLoopResult]: For program point isHighWaterSensorDryEXIT(lines 952 965) no Hoare annotation was computed. [2020-07-21 10:38:25,179 INFO L271 CegarLoopResult]: At program point isHighWaterSensorDryENTRY(lines 952 965) the Hoare annotation is: true [2020-07-21 10:38:25,179 INFO L268 CegarLoopResult]: For program point isHighWaterSensorDryFINAL(lines 952 965) no Hoare annotation was computed. [2020-07-21 10:38:25,179 INFO L264 CegarLoopResult]: At program point L159(line 159) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0)) (or .cse0 .cse1 (not (<= 1 |old(~pumpRunning~0)|))))) [2020-07-21 10:38:25,179 INFO L268 CegarLoopResult]: For program point L159-1(lines 140 164) no Hoare annotation was computed. [2020-07-21 10:38:25,179 INFO L264 CegarLoopResult]: At program point L154(line 154) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (<= 1 |old(~pumpRunning~0)|)) (<= |old(~pumpRunning~0)| ~pumpRunning~0)) (or .cse0 .cse1 (not (= 0 |old(~pumpRunning~0)|))))) [2020-07-21 10:38:25,179 INFO L268 CegarLoopResult]: For program point processEnvironmentEXIT(lines 140 164) no Hoare annotation was computed. [2020-07-21 10:38:25,180 INFO L264 CegarLoopResult]: At program point L150(line 150) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (<= 1 |old(~pumpRunning~0)|)) (<= |old(~pumpRunning~0)| ~pumpRunning~0)) (or .cse0 .cse1 (not (= 0 |old(~pumpRunning~0)|))))) [2020-07-21 10:38:25,180 INFO L268 CegarLoopResult]: For program point L148(lines 148 156) no Hoare annotation was computed. [2020-07-21 10:38:25,180 INFO L264 CegarLoopResult]: At program point processEnvironmentENTRY(lines 140 164) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (<= 1 |old(~pumpRunning~0)|)) (<= |old(~pumpRunning~0)| ~pumpRunning~0)) (or .cse0 .cse1 (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0)))) [2020-07-21 10:38:25,180 INFO L264 CegarLoopResult]: At program point L146(line 146) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (<= 1 |old(~pumpRunning~0)|)) (<= |old(~pumpRunning~0)| ~pumpRunning~0)) (or .cse0 .cse1 (not (= 0 |old(~pumpRunning~0)|))))) [2020-07-21 10:38:25,180 INFO L268 CegarLoopResult]: For program point L146-1(line 146) no Hoare annotation was computed. [2020-07-21 10:38:25,180 INFO L268 CegarLoopResult]: For program point L144(lines 144 161) no Hoare annotation was computed. [2020-07-21 10:38:25,180 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__baseEXIT(lines 80 86) no Hoare annotation was computed. [2020-07-21 10:38:25,180 INFO L271 CegarLoopResult]: At program point processEnvironment__wrappee__baseFINAL(lines 80 86) the Hoare annotation is: true [2020-07-21 10:38:25,181 INFO L264 CegarLoopResult]: At program point testENTRY(lines 668 735) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 10:38:25,181 INFO L264 CegarLoopResult]: At program point L700(line 700) the Hoare annotation is: (let ((.cse2 (<= 1 ~systemActive~0)) (.cse0 (= 0 ~pumpRunning~0)) (.cse1 (<= test_~splverifierCounter~0 0))) (or (not (<= |old(~waterLevel~0)| 1)) (and (<= 1 ~waterLevel~0) .cse0 .cse1 .cse2) (and (<= 2 ~waterLevel~0) .cse1 .cse2 (<= 1 ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~systemActive~0) .cse0 .cse1 (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|)))) [2020-07-21 10:38:25,181 INFO L268 CegarLoopResult]: For program point L698(lines 698 704) no Hoare annotation was computed. [2020-07-21 10:38:25,181 INFO L268 CegarLoopResult]: For program point L698-1(lines 698 704) no Hoare annotation was computed. [2020-07-21 10:38:25,181 INFO L268 CegarLoopResult]: For program point testFINAL(lines 668 735) no Hoare annotation was computed. [2020-07-21 10:38:25,181 INFO L264 CegarLoopResult]: At program point L725(lines 678 727) the Hoare annotation is: (let ((.cse2 (<= 1 ~systemActive~0)) (.cse0 (= 0 ~pumpRunning~0)) (.cse1 (<= test_~splverifierCounter~0 0))) (or (not (<= |old(~waterLevel~0)| 1)) (and (<= 1 ~waterLevel~0) .cse0 .cse1 .cse2) (and (<= 2 ~waterLevel~0) .cse1 .cse2 (<= 1 ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~systemActive~0) .cse0 .cse1 (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|)))) [2020-07-21 10:38:25,181 INFO L264 CegarLoopResult]: At program point L690(line 690) the Hoare annotation is: (let ((.cse2 (<= 1 ~systemActive~0)) (.cse0 (= 0 ~pumpRunning~0)) (.cse1 (<= test_~splverifierCounter~0 0))) (or (not (<= |old(~waterLevel~0)| 1)) (and (<= 1 ~waterLevel~0) .cse0 .cse1 .cse2) (and (<= 2 ~waterLevel~0) .cse1 .cse2 (<= 1 ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~systemActive~0) .cse0 .cse1 (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|)))) [2020-07-21 10:38:25,182 INFO L268 CegarLoopResult]: For program point L688(lines 688 694) no Hoare annotation was computed. [2020-07-21 10:38:25,182 INFO L268 CegarLoopResult]: For program point L688-1(lines 688 694) no Hoare annotation was computed. [2020-07-21 10:38:25,182 INFO L268 CegarLoopResult]: For program point L680(lines 680 684) no Hoare annotation was computed. [2020-07-21 10:38:25,182 INFO L264 CegarLoopResult]: At program point L728(lines 677 729) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 10:38:25,182 INFO L264 CegarLoopResult]: At program point L718(line 718) the Hoare annotation is: (let ((.cse0 (<= test_~splverifierCounter~0 0))) (or (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) .cse0 (<= 1 ~pumpRunning~0)) (and (<= 1 ~waterLevel~0) (= 0 ~pumpRunning~0) .cse0) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|)))) [2020-07-21 10:38:25,182 INFO L268 CegarLoopResult]: For program point L716(lines 716 722) no Hoare annotation was computed. [2020-07-21 10:38:25,182 INFO L264 CegarLoopResult]: At program point L716-1(lines 708 723) the Hoare annotation is: (let ((.cse2 (<= 1 ~systemActive~0)) (.cse0 (= 0 ~pumpRunning~0)) (.cse1 (<= test_~splverifierCounter~0 0))) (or (not (<= |old(~waterLevel~0)| 1)) (and (<= 1 ~waterLevel~0) .cse0 .cse1 .cse2) (and (<= 2 ~waterLevel~0) .cse1 .cse2 (<= 1 ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~systemActive~0) .cse0 .cse1 (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|)))) [2020-07-21 10:38:25,183 INFO L268 CegarLoopResult]: For program point L679(lines 678 727) no Hoare annotation was computed. [2020-07-21 10:38:25,183 INFO L264 CegarLoopResult]: At program point L710(line 710) the Hoare annotation is: (let ((.cse0 (<= test_~splverifierCounter~0 0))) (or (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) .cse0 (<= 1 ~pumpRunning~0)) (and (<= 1 ~waterLevel~0) (= 0 ~pumpRunning~0) .cse0) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|)))) [2020-07-21 10:38:25,183 INFO L268 CegarLoopResult]: For program point L708(lines 708 723) no Hoare annotation was computed. [2020-07-21 10:38:25,183 INFO L268 CegarLoopResult]: For program point testEXIT(lines 668 735) no Hoare annotation was computed. [2020-07-21 10:38:25,183 INFO L268 CegarLoopResult]: For program point __utac__get_this_argENTRY(lines 572 617) no Hoare annotation was computed. [2020-07-21 10:38:25,183 INFO L268 CegarLoopResult]: For program point __utac__get_this_argEXIT(lines 572 617) no Hoare annotation was computed. [2020-07-21 10:38:25,183 INFO L268 CegarLoopResult]: For program point __utac__get_this_argFINAL(lines 572 617) no Hoare annotation was computed. [2020-07-21 10:38:25,183 INFO L268 CegarLoopResult]: For program point L592(lines 592 599) no Hoare annotation was computed. [2020-07-21 10:38:25,184 INFO L268 CegarLoopResult]: For program point L586(lines 586 606) no Hoare annotation was computed. [2020-07-21 10:38:25,184 INFO L268 CegarLoopResult]: For program point L586-1(lines 586 606) no Hoare annotation was computed. [2020-07-21 10:38:25,184 INFO L268 CegarLoopResult]: For program point isLowWaterSensorDryFINAL(lines 966 974) no Hoare annotation was computed. [2020-07-21 10:38:25,184 INFO L271 CegarLoopResult]: At program point isLowWaterSensorDryENTRY(lines 966 974) the Hoare annotation is: true [2020-07-21 10:38:25,184 INFO L268 CegarLoopResult]: For program point isLowWaterSensorDryEXIT(lines 966 974) no Hoare annotation was computed. [2020-07-21 10:38:25,184 INFO L268 CegarLoopResult]: For program point L928(lines 928 936) no Hoare annotation was computed. [2020-07-21 10:38:25,184 INFO L268 CegarLoopResult]: For program point L928-2(lines 928 936) no Hoare annotation was computed. [2020-07-21 10:38:25,184 INFO L268 CegarLoopResult]: For program point printEnvironmentEXIT(lines 920 942) no Hoare annotation was computed. [2020-07-21 10:38:25,184 INFO L268 CegarLoopResult]: For program point printEnvironmentENTRY(lines 920 942) no Hoare annotation was computed. [2020-07-21 10:38:25,185 INFO L268 CegarLoopResult]: For program point printEnvironmentFINAL(lines 920 942) no Hoare annotation was computed. [2020-07-21 10:38:25,185 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtENTRY(lines 469 571) no Hoare annotation was computed. [2020-07-21 10:38:25,185 INFO L268 CegarLoopResult]: For program point L539(lines 517 540) no Hoare annotation was computed. [2020-07-21 10:38:25,185 INFO L268 CegarLoopResult]: For program point L498(lines 498 514) no Hoare annotation was computed. [2020-07-21 10:38:25,185 INFO L268 CegarLoopResult]: For program point L558(lines 558 565) no Hoare annotation was computed. [2020-07-21 10:38:25,185 INFO L268 CegarLoopResult]: For program point L519(lines 518 538) no Hoare annotation was computed. [2020-07-21 10:38:25,185 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-21 10:38:25,185 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtFINAL(lines 469 571) no Hoare annotation was computed. [2020-07-21 10:38:25,185 INFO L268 CegarLoopResult]: For program point L550-1(line 550) no Hoare annotation was computed. [2020-07-21 10:38:25,185 INFO L268 CegarLoopResult]: For program point L515(lines 515 556) no Hoare annotation was computed. [2020-07-21 10:38:25,186 INFO L268 CegarLoopResult]: For program point L534(line 534) no Hoare annotation was computed. [2020-07-21 10:38:25,186 INFO L268 CegarLoopResult]: For program point L534-1(line 534) no Hoare annotation was computed. [2020-07-21 10:38:25,186 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtEXIT(lines 469 571) no Hoare annotation was computed. [2020-07-21 10:38:25,186 INFO L268 CegarLoopResult]: For program point L493(lines 493 497) no Hoare annotation was computed. [2020-07-21 10:38:25,186 INFO L268 CegarLoopResult]: For program point L557(lines 557 568) no Hoare annotation was computed. [2020-07-21 10:38:25,186 INFO L268 CegarLoopResult]: For program point L520(lines 520 524) no Hoare annotation was computed. [2020-07-21 10:38:25,186 INFO L268 CegarLoopResult]: For program point L518-2(lines 518 538) no Hoare annotation was computed. [2020-07-21 10:38:25,186 INFO L268 CegarLoopResult]: For program point select_oneENTRY(lines 977 986) no Hoare annotation was computed. [2020-07-21 10:38:25,186 INFO L268 CegarLoopResult]: For program point select_oneFINAL(lines 977 986) no Hoare annotation was computed. [2020-07-21 10:38:25,186 INFO L268 CegarLoopResult]: For program point select_oneEXIT(lines 977 986) no Hoare annotation was computed. [2020-07-21 10:38:25,187 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 10:38:25,187 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (<= |old(~pumpRunning~0)| ~pumpRunning~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) [2020-07-21 10:38:25,187 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 10:38:25,187 INFO L268 CegarLoopResult]: For program point activatePumpFINAL(lines 165 172) no Hoare annotation was computed. [2020-07-21 10:38:25,187 INFO L268 CegarLoopResult]: For program point activatePumpEXIT(lines 165 172) no Hoare annotation was computed. [2020-07-21 10:38:25,187 INFO L264 CegarLoopResult]: At program point activatePumpENTRY(lines 165 172) the Hoare annotation is: (or (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0) (not (<= 2 ~waterLevel~0))) [2020-07-21 10:38:25,187 INFO L268 CegarLoopResult]: For program point isHighWaterLevelEXIT(lines 237 255) no Hoare annotation was computed. [2020-07-21 10:38:25,187 INFO L268 CegarLoopResult]: For program point L246(lines 246 250) no Hoare annotation was computed. [2020-07-21 10:38:25,188 INFO L271 CegarLoopResult]: At program point isHighWaterLevelENTRY(lines 237 255) the Hoare annotation is: true [2020-07-21 10:38:25,188 INFO L268 CegarLoopResult]: For program point isHighWaterLevelFINAL(lines 237 255) no Hoare annotation was computed. [2020-07-21 10:38:25,188 INFO L271 CegarLoopResult]: At program point L244(line 244) the Hoare annotation is: true [2020-07-21 10:38:25,188 INFO L268 CegarLoopResult]: For program point L246-2(lines 246 250) no Hoare annotation was computed. [2020-07-21 10:38:25,188 INFO L268 CegarLoopResult]: For program point L244-1(line 244) no Hoare annotation was computed. [2020-07-21 10:38:25,188 INFO L271 CegarLoopResult]: At program point getWaterLevelENTRY(lines 943 951) the Hoare annotation is: true [2020-07-21 10:38:25,188 INFO L268 CegarLoopResult]: For program point getWaterLevelFINAL(lines 943 951) no Hoare annotation was computed. [2020-07-21 10:38:25,188 INFO L268 CegarLoopResult]: For program point getWaterLevelEXIT(lines 943 951) no Hoare annotation was computed. [2020-07-21 10:38:25,188 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2020-07-21 10:38:25,189 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intENTRY(line -1) no Hoare annotation was computed. [2020-07-21 10:38:25,189 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intFINAL(line -1) no Hoare annotation was computed. [2020-07-21 10:38:25,189 INFO L271 CegarLoopResult]: At program point changeMethaneLevelENTRY(lines 899 910) the Hoare annotation is: true [2020-07-21 10:38:25,189 INFO L268 CegarLoopResult]: For program point L903-1(lines 899 910) no Hoare annotation was computed. [2020-07-21 10:38:25,189 INFO L268 CegarLoopResult]: For program point changeMethaneLevelEXIT(lines 899 910) no Hoare annotation was computed. [2020-07-21 10:38:25,189 INFO L271 CegarLoopResult]: At program point isMethaneLevelCriticalENTRY(lines 911 919) the Hoare annotation is: true [2020-07-21 10:38:25,189 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalFINAL(lines 911 919) no Hoare annotation was computed. [2020-07-21 10:38:25,189 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalEXIT(lines 911 919) no Hoare annotation was computed. [2020-07-21 10:38:25,190 INFO L264 CegarLoopResult]: At program point L62(line 62) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (<= 1 |old(~waterLevel~0)|)))) (and (or .cse0 (not (<= 1 |old(~pumpRunning~0)|)) (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (<= |old(~pumpRunning~0)| ~pumpRunning~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 2 |old(~waterLevel~0)|))) (or (not (= 0 ~systemActive~0)) .cse1 .cse2) (or .cse0 .cse1 .cse2))) [2020-07-21 10:38:25,190 INFO L268 CegarLoopResult]: For program point L60(lines 59 78) no Hoare annotation was computed. [2020-07-21 10:38:25,190 INFO L264 CegarLoopResult]: At program point timeShiftENTRY(lines 56 79) the Hoare annotation is: (let ((.cse4 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse5 (<= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse3 (not (<= 1 ~systemActive~0))) (.cse0 (and .cse4 (= 0 ~pumpRunning~0) .cse5)) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (<= 1 |old(~waterLevel~0)|)))) (and (or .cse0 (not (= 0 ~systemActive~0)) .cse1 .cse2) (or .cse3 (not (<= 1 |old(~pumpRunning~0)|)) (and .cse4 (<= |old(~pumpRunning~0)| ~pumpRunning~0) .cse5) (not (<= 2 |old(~waterLevel~0)|))) (or .cse3 .cse0 .cse1 .cse2)))) [2020-07-21 10:38:25,190 INFO L268 CegarLoopResult]: For program point timeShiftEXIT(lines 56 79) no Hoare annotation was computed. [2020-07-21 10:38:25,190 INFO L268 CegarLoopResult]: For program point timeShiftFINAL(lines 56 79) no Hoare annotation was computed. [2020-07-21 10:38:25,191 INFO L264 CegarLoopResult]: At program point L69(line 69) the Hoare annotation is: (let ((.cse6 (not (<= 1 |old(~waterLevel~0)|))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse3 (= 0 ~pumpRunning~0)) (.cse4 (<= |old(~waterLevel~0)| ~waterLevel~0)) (.cse5 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 (and .cse1 (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) (<= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (<= 1 |old(~pumpRunning~0)|)) .cse2) (or (not (<= |old(~waterLevel~0)| 1)) .cse0 (and .cse3 (<= ~waterLevel~0 1) .cse4) .cse5 .cse6) (or (not (= 0 ~systemActive~0)) .cse5 .cse6) (or .cse0 (and .cse1 .cse3 .cse4) .cse5 .cse2))) [2020-07-21 10:38:25,191 INFO L264 CegarLoopResult]: At program point L67(lines 67 73) the Hoare annotation is: (let ((.cse4 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse5 (= 0 ~pumpRunning~0)) (.cse6 (<= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse3 (not (<= 1 ~systemActive~0))) (.cse0 (and .cse4 .cse5 .cse6)) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (<= 1 |old(~waterLevel~0)|)))) (and (or .cse0 (not (= 0 ~systemActive~0)) .cse1 .cse2) (or .cse3 (not (<= 1 |old(~pumpRunning~0)|)) (and .cse4 (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse5) (not (<= 2 |old(~waterLevel~0)|))) (or .cse3 .cse0 .cse1 (and (<= 2 ~waterLevel~0) .cse4 (<= 1 ~pumpRunning~0) .cse6) .cse2)))) [2020-07-21 10:38:25,191 INFO L268 CegarLoopResult]: For program point cleanupEXIT(lines 766 795) no Hoare annotation was computed. [2020-07-21 10:38:25,191 INFO L271 CegarLoopResult]: At program point cleanupENTRY(lines 766 795) the Hoare annotation is: true [2020-07-21 10:38:25,191 INFO L271 CegarLoopResult]: At program point L791(lines 766 795) the Hoare annotation is: true [2020-07-21 10:38:25,191 INFO L268 CegarLoopResult]: For program point L787(line 787) no Hoare annotation was computed. [2020-07-21 10:38:25,192 INFO L268 CegarLoopResult]: For program point L780(lines 780 784) no Hoare annotation was computed. [2020-07-21 10:38:25,192 INFO L271 CegarLoopResult]: At program point L780-1(lines 780 784) the Hoare annotation is: true [2020-07-21 10:38:25,192 INFO L268 CegarLoopResult]: For program point L777(line 777) no Hoare annotation was computed. [2020-07-21 10:38:25,192 INFO L271 CegarLoopResult]: At program point L776-2(lines 776 790) the Hoare annotation is: true [2020-07-21 10:38:25,192 INFO L271 CegarLoopResult]: At program point L772(line 772) the Hoare annotation is: true [2020-07-21 10:38:25,192 INFO L268 CegarLoopResult]: For program point L772-1(line 772) no Hoare annotation was computed. [2020-07-21 10:38:25,192 INFO L264 CegarLoopResult]: At program point lowerWaterLevelENTRY(lines 875 886) the Hoare annotation is: (or (not (<= 1 ~systemActive~0)) (not (<= 1 ~pumpRunning~0)) (not (<= 2 |old(~waterLevel~0)|)) (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (<= |old(~waterLevel~0)| ~waterLevel~0))) [2020-07-21 10:38:25,192 INFO L268 CegarLoopResult]: For program point L879-1(lines 875 886) no Hoare annotation was computed. [2020-07-21 10:38:25,192 INFO L268 CegarLoopResult]: For program point lowerWaterLevelEXIT(lines 875 886) no Hoare annotation was computed. [2020-07-21 10:38:25,193 INFO L268 CegarLoopResult]: For program point setupEXIT(lines 820 826) no Hoare annotation was computed. [2020-07-21 10:38:25,193 INFO L271 CegarLoopResult]: At program point setupFINAL(lines 820 826) the Hoare annotation is: true [2020-07-21 10:38:25,193 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 10:38:25,193 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= 1 ~waterLevel~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0)) [2020-07-21 10:38:25,193 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 10:38:25,193 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 10:38:25,193 INFO L268 CegarLoopResult]: For program point startSystemEXIT(lines 290 297) no Hoare annotation was computed. [2020-07-21 10:38:25,193 INFO L271 CegarLoopResult]: At program point startSystemENTRY(lines 290 297) the Hoare annotation is: true [2020-07-21 10:38:25,194 INFO L268 CegarLoopResult]: For program point startSystemFINAL(lines 290 297) no Hoare annotation was computed. [2020-07-21 10:38:25,194 INFO L264 CegarLoopResult]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 88 112) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0)) [2020-07-21 10:38:25,194 INFO L268 CegarLoopResult]: For program point L96(lines 96 104) no Hoare annotation was computed. [2020-07-21 10:38:25,194 INFO L264 CegarLoopResult]: At program point L94(line 94) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0)) [2020-07-21 10:38:25,194 INFO L268 CegarLoopResult]: For program point L94-1(line 94) no Hoare annotation was computed. [2020-07-21 10:38:25,194 INFO L268 CegarLoopResult]: For program point L92(lines 92 109) no Hoare annotation was computed. [2020-07-21 10:38:25,194 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 88 112) no Hoare annotation was computed. [2020-07-21 10:38:25,194 INFO L264 CegarLoopResult]: At program point L107(line 107) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|))) [2020-07-21 10:38:25,195 INFO L268 CegarLoopResult]: For program point L107-1(lines 88 112) no Hoare annotation was computed. [2020-07-21 10:38:25,195 INFO L264 CegarLoopResult]: At program point L102(line 102) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0)) (and (= 0 ~pumpRunning~0) (= 0 processEnvironment__wrappee__highWaterSensor_~tmp~0)) (not (= 0 |old(~pumpRunning~0)|))) [2020-07-21 10:38:25,195 INFO L264 CegarLoopResult]: At program point L98(line 98) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0)) (and (<= 2 ~waterLevel~0) (= 0 ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|))) [2020-07-21 10:38:25,195 INFO L268 CegarLoopResult]: For program point waterRiseEXIT(lines 887 898) no Hoare annotation was computed. [2020-07-21 10:38:25,195 INFO L268 CegarLoopResult]: For program point L891-1(lines 887 898) no Hoare annotation was computed. [2020-07-21 10:38:25,195 INFO L264 CegarLoopResult]: At program point waterRiseENTRY(lines 887 898) the Hoare annotation is: (let ((.cse4 (<= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse2 (not (<= 1 |old(~waterLevel~0)|))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse5 (not (= 0 ~systemActive~0))) (.cse1 (not (= 0 ~pumpRunning~0))) (.cse6 (not (<= 2 |old(~waterLevel~0)|))) (.cse3 (and (<= ~waterLevel~0 |old(~waterLevel~0)|) .cse4))) (and (or .cse0 .cse1 .cse2 .cse3) (or (not (<= |old(~waterLevel~0)| 1)) (and (<= ~waterLevel~0 1) .cse4) .cse5 .cse1 .cse2) (or .cse0 (not (<= 1 ~pumpRunning~0)) .cse6 .cse3) (or .cse5 .cse1 .cse6 .cse3)))) [2020-07-21 10:38:25,195 INFO L268 CegarLoopResult]: For program point __automaton_failFINAL(lines 864 871) no Hoare annotation was computed. [2020-07-21 10:38:25,196 INFO L268 CegarLoopResult]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 868) no Hoare annotation was computed. [2020-07-21 10:38:25,196 INFO L271 CegarLoopResult]: At program point __automaton_failENTRY(lines 864 871) the Hoare annotation is: true [2020-07-21 10:38:25,196 INFO L268 CegarLoopResult]: For program point __automaton_failEXIT(lines 864 871) no Hoare annotation was computed. [2020-07-21 10:38:25,196 INFO L264 CegarLoopResult]: At program point L128(line 128) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (= 0 |old(~pumpRunning~0)|))) (or .cse0 .cse1 (not (<= 1 |old(~pumpRunning~0)|))))) [2020-07-21 10:38:25,196 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__lowWaterSensorEXIT(lines 114 138) no Hoare annotation was computed. [2020-07-21 10:38:25,196 INFO L264 CegarLoopResult]: At program point L124(line 124) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (<= 1 |old(~pumpRunning~0)|)) (and (<= 1 processEnvironment__wrappee__lowWaterSensor_~tmp~1) (<= |old(~pumpRunning~0)| ~pumpRunning~0))) (or .cse0 .cse1 (not (= 0 |old(~pumpRunning~0)|))))) [2020-07-21 10:38:25,196 INFO L264 CegarLoopResult]: At program point processEnvironment__wrappee__lowWaterSensorENTRY(lines 114 138) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (<= 1 |old(~pumpRunning~0)|)) (<= |old(~pumpRunning~0)| ~pumpRunning~0)) (or .cse0 .cse1 (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0)))) [2020-07-21 10:38:25,196 INFO L268 CegarLoopResult]: For program point L122(lines 122 130) no Hoare annotation was computed. [2020-07-21 10:38:25,197 INFO L264 CegarLoopResult]: At program point L120(line 120) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (<= 1 |old(~pumpRunning~0)|)) (<= |old(~pumpRunning~0)| ~pumpRunning~0)) (or .cse0 .cse1 (not (= 0 |old(~pumpRunning~0)|))))) [2020-07-21 10:38:25,197 INFO L268 CegarLoopResult]: For program point L120-1(line 120) no Hoare annotation was computed. [2020-07-21 10:38:25,197 INFO L268 CegarLoopResult]: For program point L118(lines 118 135) no Hoare annotation was computed. [2020-07-21 10:38:25,197 INFO L264 CegarLoopResult]: At program point L133(line 133) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0)) (or .cse0 .cse1 (not (<= 1 |old(~pumpRunning~0)|))))) [2020-07-21 10:38:25,197 INFO L268 CegarLoopResult]: For program point L133-1(lines 114 138) no Hoare annotation was computed. [2020-07-21 10:38:25,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 10:38:25 BoogieIcfgContainer [2020-07-21 10:38:25,216 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 10:38:25,217 INFO L168 Benchmark]: Toolchain (without parser) took 24573.71 ms. Allocated memory was 144.7 MB in the beginning and 542.1 MB in the end (delta: 397.4 MB). Free memory was 101.9 MB in the beginning and 421.4 MB in the end (delta: -319.5 MB). Peak memory consumption was 415.0 MB. Max. memory is 7.1 GB. [2020-07-21 10:38:25,218 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 144.7 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-21 10:38:25,219 INFO L168 Benchmark]: CACSL2BoogieTranslator took 700.09 ms. Allocated memory was 144.7 MB in the beginning and 201.3 MB in the end (delta: 56.6 MB). Free memory was 101.5 MB in the beginning and 169.2 MB in the end (delta: -67.7 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. [2020-07-21 10:38:25,220 INFO L168 Benchmark]: Boogie Preprocessor took 110.39 ms. Allocated memory is still 201.3 MB. Free memory was 169.2 MB in the beginning and 164.3 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-07-21 10:38:25,220 INFO L168 Benchmark]: RCFGBuilder took 1321.15 ms. Allocated memory was 201.3 MB in the beginning and 233.8 MB in the end (delta: 32.5 MB). Free memory was 164.3 MB in the beginning and 192.8 MB in the end (delta: -28.4 MB). Peak memory consumption was 83.6 MB. Max. memory is 7.1 GB. [2020-07-21 10:38:25,221 INFO L168 Benchmark]: TraceAbstraction took 22436.64 ms. Allocated memory was 233.8 MB in the beginning and 542.1 MB in the end (delta: 308.3 MB). Free memory was 191.3 MB in the beginning and 421.4 MB in the end (delta: -230.2 MB). Peak memory consumption was 415.2 MB. Max. memory is 7.1 GB. [2020-07-21 10:38:25,225 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 144.7 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 700.09 ms. Allocated memory was 144.7 MB in the beginning and 201.3 MB in the end (delta: 56.6 MB). Free memory was 101.5 MB in the beginning and 169.2 MB in the end (delta: -67.7 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 110.39 ms. Allocated memory is still 201.3 MB. Free memory was 169.2 MB in the beginning and 164.3 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1321.15 ms. Allocated memory was 201.3 MB in the beginning and 233.8 MB in the end (delta: 32.5 MB). Free memory was 164.3 MB in the beginning and 192.8 MB in the end (delta: -28.4 MB). Peak memory consumption was 83.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 22436.64 ms. Allocated memory was 233.8 MB in the beginning and 542.1 MB in the end (delta: 308.3 MB). Free memory was 191.3 MB in the beginning and 421.4 MB in the end (delta: -230.2 MB). Peak memory consumption was 415.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 868]: 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: 776]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 677]: Loop Invariant Derived loop invariant: ((!(\old(waterLevel) <= 1) || !(0 == \old(pumpRunning))) || !(1 <= \old(waterLevel))) || !(1 <= \old(systemActive)) - InvariantResult [Line: 766]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 678]: Loop Invariant Derived loop invariant: (((((!(\old(waterLevel) <= 1) || (((1 <= waterLevel && 0 == pumpRunning) && splverifierCounter <= 0) && 1 <= systemActive)) || (((2 <= waterLevel && splverifierCounter <= 0) && 1 <= systemActive) && 1 <= pumpRunning)) || !(0 == \old(pumpRunning))) || (((0 == systemActive && 0 == pumpRunning) && splverifierCounter <= 0) && \old(waterLevel) <= waterLevel)) || !(1 <= \old(waterLevel))) || !(1 <= \old(systemActive)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 43 procedures, 255 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 16.1s, OverallIterations: 13, TraceHistogramMax: 3, AutomataDifference: 7.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2659 SDtfs, 2487 SDslu, 4571 SDs, 0 SdLazy, 4391 SolverSat, 1541 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2177 GetRequests, 2081 SyntacticMatches, 10 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1490occurred 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: 0.6s AutomataMinimizationTime, 13 MinimizatonAttempts, 981 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 71 LocationsWithAnnotation, 2903 PreInvPairs, 2982 NumberOfFragments, 1568 HoareAnnotationTreeSize, 2903 FomulaSimplifications, 15719 FormulaSimplificationTreeSizeReduction, 1.7s HoareSimplificationTime, 71 FomulaSimplificationsInter, 12321 FormulaSimplificationTreeSizeReductionInter, 4.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 1609 NumberOfCodeBlocks, 1609 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 2127 ConstructedInterpolants, 0 QuantifiedInterpolants, 548535 SizeOfPredicates, 47 NumberOfNonLiveVariables, 10806 ConjunctsInSsa, 107 ConjunctsInUnsatCore, 16 InterpolantComputations, 10 PerfectInterpolantSequences, 612/699 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...