java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product50.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:21:59,560 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:21:59,563 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:21:59,581 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:21:59,581 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:21:59,583 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:21:59,585 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:21:59,594 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:21:59,599 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:21:59,603 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:21:59,604 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:21:59,606 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:21:59,606 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:21:59,608 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:21:59,610 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:21:59,611 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:21:59,613 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:21:59,614 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:21:59,615 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:21:59,620 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:21:59,624 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:21:59,627 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:21:59,630 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:21:59,631 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:21:59,633 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:21:59,633 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:21:59,633 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:21:59,635 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:21:59,636 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:21:59,637 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:21:59,637 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:21:59,638 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:21:59,638 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:21:59,639 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:21:59,640 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:21:59,641 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:21:59,641 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:21:59,641 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:21:59,642 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:21:59,642 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:21:59,644 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:21:59,644 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 [2019-10-13 21:21:59,679 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:21:59,680 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:21:59,684 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:21:59,684 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:21:59,685 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:21:59,685 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:21:59,685 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:21:59,685 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:21:59,685 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:21:59,686 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:21:59,686 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:21:59,686 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:21:59,688 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:21:59,688 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:21:59,689 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:21:59,689 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:21:59,689 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:21:59,689 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:21:59,689 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:21:59,690 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:21:59,690 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:21:59,690 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:21:59,690 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:21:59,690 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:21:59,690 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:21:59,691 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:21:59,691 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:21:59,691 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:21:59,694 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-13 21:22:00,005 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:22:00,019 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:22:00,022 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:22:00,024 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:22:00,024 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:22:00,025 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product50.cil.c [2019-10-13 21:22:00,106 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d51de5a66/702804236f6b4361a51d8d2ce3e1555c/FLAG187b69c9d [2019-10-13 21:22:00,692 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:22:00,694 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product50.cil.c [2019-10-13 21:22:00,717 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d51de5a66/702804236f6b4361a51d8d2ce3e1555c/FLAG187b69c9d [2019-10-13 21:22:01,024 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d51de5a66/702804236f6b4361a51d8d2ce3e1555c [2019-10-13 21:22:01,033 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:22:01,034 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:22:01,035 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:22:01,035 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:22:01,039 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:22:01,040 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:22:01" (1/1) ... [2019-10-13 21:22:01,044 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f043480 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:22:01, skipping insertion in model container [2019-10-13 21:22:01,045 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:22:01" (1/1) ... [2019-10-13 21:22:01,053 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:22:01,113 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:22:01,519 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:22:01,533 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:22:01,619 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:22:01,663 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:22:01,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:22:01 WrapperNode [2019-10-13 21:22:01,664 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:22:01,665 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:22:01,665 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:22:01,665 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:22:01,677 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:22:01" (1/1) ... [2019-10-13 21:22:01,678 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:22:01" (1/1) ... [2019-10-13 21:22:01,702 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:22:01" (1/1) ... [2019-10-13 21:22:01,702 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:22:01" (1/1) ... [2019-10-13 21:22:01,754 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:22:01" (1/1) ... [2019-10-13 21:22:01,769 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:22:01" (1/1) ... [2019-10-13 21:22:01,777 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:22:01" (1/1) ... [2019-10-13 21:22:01,784 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:22:01,785 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:22:01,785 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:22:01,785 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:22:01,786 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:22:01" (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 [2019-10-13 21:22:01,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:22:01,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:22:01,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 21:22:01,843 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 21:22:01,843 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 21:22:01,843 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 21:22:01,843 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 21:22:01,843 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 21:22:01,844 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 21:22:01,844 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2019-10-13 21:22:01,844 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-13 21:22:01,844 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-13 21:22:01,844 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 21:22:01,845 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-13 21:22:01,845 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:22:01,845 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 21:22:01,846 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 21:22:01,846 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 21:22:01,846 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 21:22:01,846 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 21:22:01,846 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-13 21:22:01,847 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-13 21:22:01,847 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-13 21:22:01,847 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-13 21:22:01,847 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-13 21:22:01,847 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-13 21:22:01,848 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-13 21:22:01,848 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-13 21:22:01,848 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-13 21:22:01,848 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-13 21:22:01,849 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 21:22:01,849 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-13 21:22:01,849 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-13 21:22:01,850 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-13 21:22:01,850 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-13 21:22:01,850 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-13 21:22:01,850 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-13 21:22:01,850 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-13 21:22:01,850 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-13 21:22:01,851 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-13 21:22:01,851 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 21:22:01,851 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:22:01,851 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 21:22:01,851 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 21:22:01,851 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 21:22:01,851 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 21:22:01,851 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 21:22:01,852 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 21:22:01,852 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 21:22:01,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 21:22:01,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:22:01,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 21:22:01,852 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 21:22:01,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:22:01,852 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 21:22:01,853 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 21:22:01,853 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:22:01,853 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 21:22:01,853 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 21:22:01,853 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 21:22:01,853 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 21:22:01,853 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 21:22:01,853 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-13 21:22:01,853 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-13 21:22:01,854 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2019-10-13 21:22:01,854 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-13 21:22:01,854 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-13 21:22:01,854 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-13 21:22:01,854 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-13 21:22:01,854 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-13 21:22:01,854 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-13 21:22:01,854 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 21:22:01,855 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 21:22:01,855 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-13 21:22:01,855 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 21:22:01,855 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 21:22:01,855 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 21:22:01,855 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:22:01,855 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 21:22:01,856 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-13 21:22:01,856 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-13 21:22:01,856 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-13 21:22:01,856 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-13 21:22:01,856 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-13 21:22:01,856 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-13 21:22:01,856 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-13 21:22:01,857 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-13 21:22:01,857 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-13 21:22:01,857 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-13 21:22:01,857 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-13 21:22:01,857 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 21:22:01,857 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-13 21:22:01,858 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-13 21:22:01,858 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:22:01,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 21:22:01,858 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:22:02,957 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:22:02,958 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-13 21:22:02,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:22:02 BoogieIcfgContainer [2019-10-13 21:22:02,961 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:22:02,963 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:22:02,963 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:22:02,967 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:22:02,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:22:01" (1/3) ... [2019-10-13 21:22:02,968 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74e89c42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:22:02, skipping insertion in model container [2019-10-13 21:22:02,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:22:01" (2/3) ... [2019-10-13 21:22:02,969 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74e89c42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:22:02, skipping insertion in model container [2019-10-13 21:22:02,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:22:02" (3/3) ... [2019-10-13 21:22:02,971 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product50.cil.c [2019-10-13 21:22:02,981 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:22:02,991 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:22:03,002 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:22:03,040 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:22:03,041 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:22:03,041 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:22:03,041 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:22:03,041 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:22:03,041 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:22:03,041 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:22:03,042 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:22:03,069 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states. [2019-10-13 21:22:03,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-10-13 21:22:03,077 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:22:03,079 INFO L380 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] [2019-10-13 21:22:03,081 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:22:03,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:22:03,086 INFO L82 PathProgramCache]: Analyzing trace with hash 1488722281, now seen corresponding path program 1 times [2019-10-13 21:22:03,096 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:22:03,097 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135049050] [2019-10-13 21:22:03,097 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:22:03,097 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:22:03,097 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:22:03,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:22:03,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:22:03,436 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135049050] [2019-10-13 21:22:03,437 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:22:03,437 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 21:22:03,438 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053694368] [2019-10-13 21:22:03,443 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:22:03,446 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:22:03,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:22:03,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:22:03,461 INFO L87 Difference]: Start difference. First operand 175 states. Second operand 2 states. [2019-10-13 21:22:03,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:22:03,535 INFO L93 Difference]: Finished difference Result 264 states and 325 transitions. [2019-10-13 21:22:03,536 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:22:03,538 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-10-13 21:22:03,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:22:03,564 INFO L225 Difference]: With dead ends: 264 [2019-10-13 21:22:03,564 INFO L226 Difference]: Without dead ends: 132 [2019-10-13 21:22:03,571 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:22:03,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2019-10-13 21:22:03,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2019-10-13 21:22:03,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2019-10-13 21:22:03,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 154 transitions. [2019-10-13 21:22:03,630 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 154 transitions. Word has length 46 [2019-10-13 21:22:03,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:22:03,631 INFO L462 AbstractCegarLoop]: Abstraction has 132 states and 154 transitions. [2019-10-13 21:22:03,631 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:22:03,631 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 154 transitions. [2019-10-13 21:22:03,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-10-13 21:22:03,639 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:22:03,639 INFO L380 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] [2019-10-13 21:22:03,640 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:22:03,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:22:03,641 INFO L82 PathProgramCache]: Analyzing trace with hash 469599371, now seen corresponding path program 1 times [2019-10-13 21:22:03,641 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:22:03,642 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894557143] [2019-10-13 21:22:03,642 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:22:03,643 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:22:03,643 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:22:03,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:22:03,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:22:03,778 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894557143] [2019-10-13 21:22:03,779 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:22:03,779 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:22:03,779 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992480509] [2019-10-13 21:22:03,781 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:22:03,781 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:22:03,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:22:03,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:22:03,782 INFO L87 Difference]: Start difference. First operand 132 states and 154 transitions. Second operand 3 states. [2019-10-13 21:22:03,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:22:03,826 INFO L93 Difference]: Finished difference Result 209 states and 243 transitions. [2019-10-13 21:22:03,827 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:22:03,827 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-10-13 21:22:03,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:22:03,832 INFO L225 Difference]: With dead ends: 209 [2019-10-13 21:22:03,832 INFO L226 Difference]: Without dead ends: 123 [2019-10-13 21:22:03,835 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:22:03,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2019-10-13 21:22:03,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2019-10-13 21:22:03,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2019-10-13 21:22:03,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 142 transitions. [2019-10-13 21:22:03,862 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 142 transitions. Word has length 47 [2019-10-13 21:22:03,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:22:03,862 INFO L462 AbstractCegarLoop]: Abstraction has 123 states and 142 transitions. [2019-10-13 21:22:03,862 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:22:03,862 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 142 transitions. [2019-10-13 21:22:03,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-13 21:22:03,865 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:22:03,865 INFO L380 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] [2019-10-13 21:22:03,865 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:22:03,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:22:03,865 INFO L82 PathProgramCache]: Analyzing trace with hash 305445596, now seen corresponding path program 1 times [2019-10-13 21:22:03,866 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:22:03,866 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842872248] [2019-10-13 21:22:03,866 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:22:03,866 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:22:03,867 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:22:03,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:22:04,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:22:04,037 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842872248] [2019-10-13 21:22:04,038 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:22:04,038 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 21:22:04,038 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103839769] [2019-10-13 21:22:04,040 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 21:22:04,040 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:22:04,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 21:22:04,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:22:04,041 INFO L87 Difference]: Start difference. First operand 123 states and 142 transitions. Second operand 7 states. [2019-10-13 21:22:04,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:22:04,349 INFO L93 Difference]: Finished difference Result 222 states and 261 transitions. [2019-10-13 21:22:04,350 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 21:22:04,350 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2019-10-13 21:22:04,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:22:04,352 INFO L225 Difference]: With dead ends: 222 [2019-10-13 21:22:04,352 INFO L226 Difference]: Without dead ends: 123 [2019-10-13 21:22:04,353 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-10-13 21:22:04,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2019-10-13 21:22:04,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2019-10-13 21:22:04,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2019-10-13 21:22:04,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 141 transitions. [2019-10-13 21:22:04,366 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 141 transitions. Word has length 52 [2019-10-13 21:22:04,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:22:04,367 INFO L462 AbstractCegarLoop]: Abstraction has 123 states and 141 transitions. [2019-10-13 21:22:04,367 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 21:22:04,367 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 141 transitions. [2019-10-13 21:22:04,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-10-13 21:22:04,369 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:22:04,369 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:22:04,369 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:22:04,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:22:04,370 INFO L82 PathProgramCache]: Analyzing trace with hash 892474279, now seen corresponding path program 1 times [2019-10-13 21:22:04,370 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:22:04,371 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968820524] [2019-10-13 21:22:04,371 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:22:04,371 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:22:04,371 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:22:04,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:22:04,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:22:04,557 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968820524] [2019-10-13 21:22:04,557 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:22:04,557 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 21:22:04,557 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618069076] [2019-10-13 21:22:04,558 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 21:22:04,558 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:22:04,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 21:22:04,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:22:04,559 INFO L87 Difference]: Start difference. First operand 123 states and 141 transitions. Second operand 5 states. [2019-10-13 21:22:05,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:22:05,082 INFO L93 Difference]: Finished difference Result 321 states and 385 transitions. [2019-10-13 21:22:05,083 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 21:22:05,083 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 65 [2019-10-13 21:22:05,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:22:05,088 INFO L225 Difference]: With dead ends: 321 [2019-10-13 21:22:05,088 INFO L226 Difference]: Without dead ends: 222 [2019-10-13 21:22:05,092 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-13 21:22:05,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2019-10-13 21:22:05,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 203. [2019-10-13 21:22:05,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2019-10-13 21:22:05,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 230 transitions. [2019-10-13 21:22:05,119 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 230 transitions. Word has length 65 [2019-10-13 21:22:05,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:22:05,120 INFO L462 AbstractCegarLoop]: Abstraction has 203 states and 230 transitions. [2019-10-13 21:22:05,120 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 21:22:05,120 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 230 transitions. [2019-10-13 21:22:05,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2019-10-13 21:22:05,122 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:22:05,122 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:22:05,122 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:22:05,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:22:05,123 INFO L82 PathProgramCache]: Analyzing trace with hash 861206730, now seen corresponding path program 1 times [2019-10-13 21:22:05,123 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:22:05,123 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411614921] [2019-10-13 21:22:05,124 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:22:05,124 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:22:05,124 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:22:05,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:22:05,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:22:05,323 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411614921] [2019-10-13 21:22:05,323 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:22:05,323 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-13 21:22:05,323 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179795041] [2019-10-13 21:22:05,325 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-13 21:22:05,325 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:22:05,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-13 21:22:05,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-10-13 21:22:05,327 INFO L87 Difference]: Start difference. First operand 203 states and 230 transitions. Second operand 10 states. [2019-10-13 21:22:06,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:22:06,014 INFO L93 Difference]: Finished difference Result 650 states and 804 transitions. [2019-10-13 21:22:06,015 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-13 21:22:06,015 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 79 [2019-10-13 21:22:06,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:22:06,020 INFO L225 Difference]: With dead ends: 650 [2019-10-13 21:22:06,021 INFO L226 Difference]: Without dead ends: 471 [2019-10-13 21:22:06,022 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2019-10-13 21:22:06,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2019-10-13 21:22:06,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 461. [2019-10-13 21:22:06,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 461 states. [2019-10-13 21:22:06,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 541 transitions. [2019-10-13 21:22:06,096 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 541 transitions. Word has length 79 [2019-10-13 21:22:06,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:22:06,096 INFO L462 AbstractCegarLoop]: Abstraction has 461 states and 541 transitions. [2019-10-13 21:22:06,096 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-13 21:22:06,097 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 541 transitions. [2019-10-13 21:22:06,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2019-10-13 21:22:06,102 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:22:06,103 INFO L380 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:22:06,103 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:22:06,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:22:06,104 INFO L82 PathProgramCache]: Analyzing trace with hash -1471064898, now seen corresponding path program 1 times [2019-10-13 21:22:06,104 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:22:06,104 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624768820] [2019-10-13 21:22:06,104 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:22:06,105 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:22:06,105 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:22:06,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:22:06,253 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-13 21:22:06,253 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624768820] [2019-10-13 21:22:06,254 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [493192874] [2019-10-13 21:22:06,254 INFO L94 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 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:22:06,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:22:06,447 INFO L256 TraceCheckSpWp]: Trace formula consists of 845 conjuncts, 11 conjunts are in the unsatisfiable core [2019-10-13 21:22:06,459 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:22:06,525 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-13 21:22:06,525 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:22:06,788 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-13 21:22:06,789 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 21:22:06,789 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 6 [2019-10-13 21:22:06,789 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230880317] [2019-10-13 21:22:06,790 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 21:22:06,790 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:22:06,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 21:22:06,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:22:06,791 INFO L87 Difference]: Start difference. First operand 461 states and 541 transitions. Second operand 6 states. [2019-10-13 21:22:06,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:22:06,841 INFO L93 Difference]: Finished difference Result 913 states and 1093 transitions. [2019-10-13 21:22:06,841 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 21:22:06,841 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 130 [2019-10-13 21:22:06,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:22:06,845 INFO L225 Difference]: With dead ends: 913 [2019-10-13 21:22:06,845 INFO L226 Difference]: Without dead ends: 476 [2019-10-13 21:22:06,847 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:22:06,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2019-10-13 21:22:06,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 476. [2019-10-13 21:22:06,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 476 states. [2019-10-13 21:22:06,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 557 transitions. [2019-10-13 21:22:06,880 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 557 transitions. Word has length 130 [2019-10-13 21:22:06,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:22:06,881 INFO L462 AbstractCegarLoop]: Abstraction has 476 states and 557 transitions. [2019-10-13 21:22:06,881 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 21:22:06,881 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 557 transitions. [2019-10-13 21:22:06,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2019-10-13 21:22:06,884 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:22:06,885 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 21:22:07,090 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:22:07,090 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:22:07,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:22:07,091 INFO L82 PathProgramCache]: Analyzing trace with hash 73716214, now seen corresponding path program 1 times [2019-10-13 21:22:07,091 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:22:07,091 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764282171] [2019-10-13 21:22:07,091 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:22:07,091 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:22:07,091 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:22:07,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:22:07,213 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-13 21:22:07,213 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764282171] [2019-10-13 21:22:07,214 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2001711449] [2019-10-13 21:22:07,214 INFO L94 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 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:22:07,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:22:07,467 INFO L256 TraceCheckSpWp]: Trace formula consists of 855 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-13 21:22:07,476 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:22:07,534 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-13 21:22:07,535 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:22:07,806 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-13 21:22:07,807 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 21:22:07,807 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 5] total 11 [2019-10-13 21:22:07,807 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749945123] [2019-10-13 21:22:07,808 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 21:22:07,808 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:22:07,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 21:22:07,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2019-10-13 21:22:07,809 INFO L87 Difference]: Start difference. First operand 476 states and 557 transitions. Second operand 5 states. [2019-10-13 21:22:07,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:22:07,842 INFO L93 Difference]: Finished difference Result 856 states and 1027 transitions. [2019-10-13 21:22:07,842 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 21:22:07,842 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 134 [2019-10-13 21:22:07,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:22:07,846 INFO L225 Difference]: With dead ends: 856 [2019-10-13 21:22:07,846 INFO L226 Difference]: Without dead ends: 404 [2019-10-13 21:22:07,848 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 265 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2019-10-13 21:22:07,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2019-10-13 21:22:07,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 404. [2019-10-13 21:22:07,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 404 states. [2019-10-13 21:22:07,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 466 transitions. [2019-10-13 21:22:07,874 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 466 transitions. Word has length 134 [2019-10-13 21:22:07,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:22:07,874 INFO L462 AbstractCegarLoop]: Abstraction has 404 states and 466 transitions. [2019-10-13 21:22:07,874 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 21:22:07,874 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 466 transitions. [2019-10-13 21:22:07,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2019-10-13 21:22:07,877 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:22:07,878 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 21:22:08,082 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:22:08,083 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:22:08,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:22:08,084 INFO L82 PathProgramCache]: Analyzing trace with hash 34208085, now seen corresponding path program 1 times [2019-10-13 21:22:08,084 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:22:08,085 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635678595] [2019-10-13 21:22:08,085 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:22:08,085 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:22:08,085 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:22:08,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:22:08,190 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 21:22:08,191 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635678595] [2019-10-13 21:22:08,191 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:22:08,191 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 21:22:08,193 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025088267] [2019-10-13 21:22:08,194 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 21:22:08,194 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:22:08,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 21:22:08,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:22:08,195 INFO L87 Difference]: Start difference. First operand 404 states and 466 transitions. Second operand 6 states. [2019-10-13 21:22:08,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:22:08,239 INFO L93 Difference]: Finished difference Result 733 states and 858 transitions. [2019-10-13 21:22:08,239 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 21:22:08,240 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 134 [2019-10-13 21:22:08,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:22:08,245 INFO L225 Difference]: With dead ends: 733 [2019-10-13 21:22:08,245 INFO L226 Difference]: Without dead ends: 414 [2019-10-13 21:22:08,246 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:22:08,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2019-10-13 21:22:08,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 414. [2019-10-13 21:22:08,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 414 states. [2019-10-13 21:22:08,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 476 transitions. [2019-10-13 21:22:08,284 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 476 transitions. Word has length 134 [2019-10-13 21:22:08,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:22:08,286 INFO L462 AbstractCegarLoop]: Abstraction has 414 states and 476 transitions. [2019-10-13 21:22:08,286 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 21:22:08,286 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 476 transitions. [2019-10-13 21:22:08,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2019-10-13 21:22:08,289 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:22:08,289 INFO L380 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:22:08,290 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:22:08,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:22:08,290 INFO L82 PathProgramCache]: Analyzing trace with hash -788785688, now seen corresponding path program 1 times [2019-10-13 21:22:08,290 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:22:08,291 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36265146] [2019-10-13 21:22:08,291 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:22:08,291 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:22:08,291 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:22:08,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:22:08,449 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2019-10-13 21:22:08,450 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36265146] [2019-10-13 21:22:08,450 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1798129480] [2019-10-13 21:22:08,450 INFO L94 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 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:22:08,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:22:08,648 INFO L256 TraceCheckSpWp]: Trace formula consists of 861 conjuncts, 13 conjunts are in the unsatisfiable core [2019-10-13 21:22:08,655 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:22:08,788 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:22:08,788 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:22:09,003 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:22:09,173 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 19 proven. 17 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-13 21:22:09,173 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 21:22:09,173 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7, 9] total 17 [2019-10-13 21:22:09,174 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252010708] [2019-10-13 21:22:09,174 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 21:22:09,174 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:22:09,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 21:22:09,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2019-10-13 21:22:09,175 INFO L87 Difference]: Start difference. First operand 414 states and 476 transitions. Second operand 8 states. [2019-10-13 21:22:10,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:22:10,383 INFO L93 Difference]: Finished difference Result 1111 states and 1409 transitions. [2019-10-13 21:22:10,383 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-13 21:22:10,384 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 138 [2019-10-13 21:22:10,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:22:10,389 INFO L225 Difference]: With dead ends: 1111 [2019-10-13 21:22:10,389 INFO L226 Difference]: Without dead ends: 782 [2019-10-13 21:22:10,391 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 278 SyntacticMatches, 5 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=370, Unknown=0, NotChecked=0, Total=462 [2019-10-13 21:22:10,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 782 states. [2019-10-13 21:22:10,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 782 to 703. [2019-10-13 21:22:10,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 703 states. [2019-10-13 21:22:10,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 841 transitions. [2019-10-13 21:22:10,430 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 841 transitions. Word has length 138 [2019-10-13 21:22:10,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:22:10,430 INFO L462 AbstractCegarLoop]: Abstraction has 703 states and 841 transitions. [2019-10-13 21:22:10,430 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 21:22:10,431 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 841 transitions. [2019-10-13 21:22:10,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2019-10-13 21:22:10,432 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:22:10,433 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 21:22:10,637 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:22:10,638 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:22:10,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:22:10,638 INFO L82 PathProgramCache]: Analyzing trace with hash -475265005, now seen corresponding path program 1 times [2019-10-13 21:22:10,639 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:22:10,639 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629760208] [2019-10-13 21:22:10,639 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:22:10,639 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:22:10,639 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:22:10,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:22:10,724 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 21:22:10,725 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629760208] [2019-10-13 21:22:10,725 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:22:10,725 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 21:22:10,725 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580073807] [2019-10-13 21:22:10,726 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 21:22:10,726 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:22:10,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 21:22:10,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:22:10,727 INFO L87 Difference]: Start difference. First operand 703 states and 841 transitions. Second operand 6 states. [2019-10-13 21:22:10,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:22:10,930 INFO L93 Difference]: Finished difference Result 720 states and 860 transitions. [2019-10-13 21:22:10,931 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 21:22:10,931 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 134 [2019-10-13 21:22:10,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:22:10,935 INFO L225 Difference]: With dead ends: 720 [2019-10-13 21:22:10,936 INFO L226 Difference]: Without dead ends: 717 [2019-10-13 21:22:10,936 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-13 21:22:10,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2019-10-13 21:22:10,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 703. [2019-10-13 21:22:10,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 703 states. [2019-10-13 21:22:10,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 837 transitions. [2019-10-13 21:22:10,992 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 837 transitions. Word has length 134 [2019-10-13 21:22:10,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:22:10,994 INFO L462 AbstractCegarLoop]: Abstraction has 703 states and 837 transitions. [2019-10-13 21:22:10,994 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 21:22:10,994 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 837 transitions. [2019-10-13 21:22:10,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2019-10-13 21:22:10,998 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:22:10,998 INFO L380 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:22:10,998 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:22:10,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:22:10,999 INFO L82 PathProgramCache]: Analyzing trace with hash -1918338429, now seen corresponding path program 1 times [2019-10-13 21:22:10,999 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:22:10,999 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237278526] [2019-10-13 21:22:10,999 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:22:10,999 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:22:11,000 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:22:11,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:22:11,182 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 19 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-13 21:22:11,183 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237278526] [2019-10-13 21:22:11,183 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1111138729] [2019-10-13 21:22:11,183 INFO L94 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 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:22:11,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:22:11,418 INFO L256 TraceCheckSpWp]: Trace formula consists of 861 conjuncts, 11 conjunts are in the unsatisfiable core [2019-10-13 21:22:11,430 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:22:11,590 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 17 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:22:11,590 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:22:12,020 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 19 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-13 21:22:12,021 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [470378308] [2019-10-13 21:22:12,031 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 139 [2019-10-13 21:22:12,111 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-13 21:22:12,111 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-13 21:22:12,205 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-13 21:22:12,207 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 68 root evaluator evaluations with a maximum evaluation depth of 0. Performed 68 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 126 variables. [2019-10-13 21:22:12,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:22:12,213 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-13 21:22:12,318 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-10-13 21:22:12,318 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-13 21:22:12,325 INFO L553 sIntCurrentIteration]: We unified 137 AI predicates to 137 [2019-10-13 21:22:12,325 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-13 21:22:12,326 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-13 21:22:12,328 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [10, 9, 9] total 17 [2019-10-13 21:22:12,328 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043206003] [2019-10-13 21:22:12,329 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:22:12,330 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-13 21:22:12,330 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-13 21:22:12,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:22:12,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:22:12,331 INFO L87 Difference]: Start difference. First operand 703 states and 837 transitions. Second operand 2 states. [2019-10-13 21:22:12,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:22:12,343 INFO L93 Difference]: Finished difference Result 703 states and 837 transitions. [2019-10-13 21:22:12,343 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:22:12,343 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 138 [2019-10-13 21:22:12,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:22:12,344 INFO L225 Difference]: With dead ends: 703 [2019-10-13 21:22:12,344 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 21:22:12,346 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:22:12,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 21:22:12,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 21:22:12,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 21:22:12,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 21:22:12,348 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 138 [2019-10-13 21:22:12,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:22:12,348 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 21:22:12,348 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:22:12,348 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 21:22:12,348 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 21:22:12,562 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:22:12,568 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-13 21:22:13,029 INFO L443 ceAbstractionStarter]: For program point L123(lines 123 127) no Hoare annotation was computed. [2019-10-13 21:22:13,030 INFO L443 ceAbstractionStarter]: For program point L123-1(lines 123 127) no Hoare annotation was computed. [2019-10-13 21:22:13,030 INFO L443 ceAbstractionStarter]: For program point L118(line 118) no Hoare annotation was computed. [2019-10-13 21:22:13,031 INFO L443 ceAbstractionStarter]: For program point L117-2(lines 117 138) no Hoare annotation was computed. [2019-10-13 21:22:13,031 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_freeFINAL(lines 92 147) no Hoare annotation was computed. [2019-10-13 21:22:13,032 INFO L443 ceAbstractionStarter]: For program point L139(lines 116 140) no Hoare annotation was computed. [2019-10-13 21:22:13,032 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_freeEXIT(lines 92 147) no Hoare annotation was computed. [2019-10-13 21:22:13,032 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_freeENTRY(lines 92 147) no Hoare annotation was computed. [2019-10-13 21:22:13,032 INFO L443 ceAbstractionStarter]: For program point L193(line 193) no Hoare annotation was computed. [2019-10-13 21:22:13,032 INFO L443 ceAbstractionStarter]: For program point L193-1(line 193) no Hoare annotation was computed. [2019-10-13 21:22:13,033 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_resetFINAL(lines 148 207) no Hoare annotation was computed. [2019-10-13 21:22:13,033 INFO L443 ceAbstractionStarter]: For program point L180(lines 180 184) no Hoare annotation was computed. [2019-10-13 21:22:13,033 INFO L443 ceAbstractionStarter]: For program point L180-1(lines 180 184) no Hoare annotation was computed. [2019-10-13 21:22:13,033 INFO L443 ceAbstractionStarter]: For program point L175(line 175) no Hoare annotation was computed. [2019-10-13 21:22:13,033 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_resetENTRY(lines 148 207) no Hoare annotation was computed. [2019-10-13 21:22:13,033 INFO L443 ceAbstractionStarter]: For program point L174-2(lines 174 199) no Hoare annotation was computed. [2019-10-13 21:22:13,034 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_resetEXIT(lines 148 207) no Hoare annotation was computed. [2019-10-13 21:22:13,034 INFO L443 ceAbstractionStarter]: For program point L200(lines 173 201) no Hoare annotation was computed. [2019-10-13 21:22:13,034 INFO L446 ceAbstractionStarter]: At program point select_helpersFINAL(lines 566 572) the Hoare annotation is: true [2019-10-13 21:22:13,034 INFO L443 ceAbstractionStarter]: For program point select_helpersEXIT(lines 566 572) no Hoare annotation was computed. [2019-10-13 21:22:13,034 INFO L443 ceAbstractionStarter]: For program point valid_productEXIT(lines 573 581) no Hoare annotation was computed. [2019-10-13 21:22:13,035 INFO L446 ceAbstractionStarter]: At program point valid_productENTRY(lines 573 581) the Hoare annotation is: true [2019-10-13 21:22:13,035 INFO L443 ceAbstractionStarter]: For program point valid_productFINAL(lines 573 581) no Hoare annotation was computed. [2019-10-13 21:22:13,035 INFO L443 ceAbstractionStarter]: For program point L417(lines 417 430) no Hoare annotation was computed. [2019-10-13 21:22:13,035 INFO L443 ceAbstractionStarter]: For program point L417-1(lines 409 433) no Hoare annotation was computed. [2019-10-13 21:22:13,035 INFO L446 ceAbstractionStarter]: At program point L415(line 415) the Hoare annotation is: true [2019-10-13 21:22:13,035 INFO L446 ceAbstractionStarter]: At program point __utac_acc__Specification4_spec__1ENTRY(lines 409 433) the Hoare annotation is: true [2019-10-13 21:22:13,036 INFO L443 ceAbstractionStarter]: For program point L415-1(line 415) no Hoare annotation was computed. [2019-10-13 21:22:13,036 INFO L443 ceAbstractionStarter]: For program point __utac_acc__Specification4_spec__1EXIT(lines 409 433) no Hoare annotation was computed. [2019-10-13 21:22:13,036 INFO L446 ceAbstractionStarter]: At program point L423(line 423) the Hoare annotation is: true [2019-10-13 21:22:13,036 INFO L443 ceAbstractionStarter]: For program point L421(lines 421 427) no Hoare annotation was computed. [2019-10-13 21:22:13,036 INFO L446 ceAbstractionStarter]: At program point L419(line 419) the Hoare annotation is: true [2019-10-13 21:22:13,036 INFO L443 ceAbstractionStarter]: For program point L419-1(line 419) no Hoare annotation was computed. [2019-10-13 21:22:13,037 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 515 537) the Hoare annotation is: true [2019-10-13 21:22:13,037 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 515 537) no Hoare annotation was computed. [2019-10-13 21:22:13,037 INFO L446 ceAbstractionStarter]: At program point L527(line 527) the Hoare annotation is: true [2019-10-13 21:22:13,037 INFO L446 ceAbstractionStarter]: At program point L527-1(line 527) the Hoare annotation is: true [2019-10-13 21:22:13,037 INFO L443 ceAbstractionStarter]: For program point L525(lines 525 532) no Hoare annotation was computed. [2019-10-13 21:22:13,037 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 515 537) no Hoare annotation was computed. [2019-10-13 21:22:13,038 INFO L443 ceAbstractionStarter]: For program point L525-1(lines 525 532) no Hoare annotation was computed. [2019-10-13 21:22:13,038 INFO L443 ceAbstractionStarter]: For program point L523(line 523) no Hoare annotation was computed. [2019-10-13 21:22:13,038 INFO L446 ceAbstractionStarter]: At program point L522(line 522) the Hoare annotation is: true [2019-10-13 21:22:13,038 INFO L446 ceAbstractionStarter]: At program point L521(line 521) the Hoare annotation is: true [2019-10-13 21:22:13,038 INFO L446 ceAbstractionStarter]: At program point L521-1(line 521) the Hoare annotation is: true [2019-10-13 21:22:13,039 INFO L443 ceAbstractionStarter]: For program point L481(line 481) no Hoare annotation was computed. [2019-10-13 21:22:13,039 INFO L443 ceAbstractionStarter]: For program point L480(line 480) no Hoare annotation was computed. [2019-10-13 21:22:13,039 INFO L443 ceAbstractionStarter]: For program point Specification2EXIT(lines 470 493) no Hoare annotation was computed. [2019-10-13 21:22:13,039 INFO L443 ceAbstractionStarter]: For program point L479(line 479) no Hoare annotation was computed. [2019-10-13 21:22:13,039 INFO L443 ceAbstractionStarter]: For program point L478(line 478) no Hoare annotation was computed. [2019-10-13 21:22:13,039 INFO L443 ceAbstractionStarter]: For program point L477(line 477) no Hoare annotation was computed. [2019-10-13 21:22:13,041 INFO L443 ceAbstractionStarter]: For program point Specification2ENTRY(lines 470 493) no Hoare annotation was computed. [2019-10-13 21:22:13,042 INFO L443 ceAbstractionStarter]: For program point L476(line 476) no Hoare annotation was computed. [2019-10-13 21:22:13,042 INFO L443 ceAbstractionStarter]: For program point Specification2FINAL(lines 470 493) no Hoare annotation was computed. [2019-10-13 21:22:13,042 INFO L443 ceAbstractionStarter]: For program point L475(line 475) no Hoare annotation was computed. [2019-10-13 21:22:13,042 INFO L443 ceAbstractionStarter]: For program point L488(line 488) no Hoare annotation was computed. [2019-10-13 21:22:13,042 INFO L443 ceAbstractionStarter]: For program point L487(line 487) no Hoare annotation was computed. [2019-10-13 21:22:13,042 INFO L443 ceAbstractionStarter]: For program point L486(line 486) no Hoare annotation was computed. [2019-10-13 21:22:13,043 INFO L443 ceAbstractionStarter]: For program point L485(line 485) no Hoare annotation was computed. [2019-10-13 21:22:13,043 INFO L443 ceAbstractionStarter]: For program point L484(line 484) no Hoare annotation was computed. [2019-10-13 21:22:13,043 INFO L443 ceAbstractionStarter]: For program point L483(line 483) no Hoare annotation was computed. [2019-10-13 21:22:13,043 INFO L443 ceAbstractionStarter]: For program point L482(line 482) no Hoare annotation was computed. [2019-10-13 21:22:13,043 INFO L443 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 807 815) no Hoare annotation was computed. [2019-10-13 21:22:13,044 INFO L446 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 807 815) the Hoare annotation is: true [2019-10-13 21:22:13,044 INFO L443 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 807 815) no Hoare annotation was computed. [2019-10-13 21:22:13,044 INFO L443 ceAbstractionStarter]: For program point L880(lines 880 884) no Hoare annotation was computed. [2019-10-13 21:22:13,044 INFO L446 ceAbstractionStarter]: At program point L878(line 878) the Hoare annotation is: true [2019-10-13 21:22:13,044 INFO L443 ceAbstractionStarter]: For program point L880-2(lines 880 884) no Hoare annotation was computed. [2019-10-13 21:22:13,044 INFO L443 ceAbstractionStarter]: For program point L878-1(line 878) no Hoare annotation was computed. [2019-10-13 21:22:13,045 INFO L446 ceAbstractionStarter]: At program point isLowWaterLevelENTRY(lines 871 889) the Hoare annotation is: true [2019-10-13 21:22:13,045 INFO L443 ceAbstractionStarter]: For program point isLowWaterLevelEXIT(lines 871 889) no Hoare annotation was computed. [2019-10-13 21:22:13,045 INFO L443 ceAbstractionStarter]: For program point isLowWaterLevelFINAL(lines 871 889) no Hoare annotation was computed. [2019-10-13 21:22:13,045 INFO L443 ceAbstractionStarter]: For program point L835-2(lines 835 843) no Hoare annotation was computed. [2019-10-13 21:22:13,045 INFO L443 ceAbstractionStarter]: For program point L823(lines 823 831) no Hoare annotation was computed. [2019-10-13 21:22:13,045 INFO L443 ceAbstractionStarter]: For program point L823-2(lines 823 831) no Hoare annotation was computed. [2019-10-13 21:22:13,046 INFO L443 ceAbstractionStarter]: For program point printPumpFINAL(lines 816 851) no Hoare annotation was computed. [2019-10-13 21:22:13,046 INFO L443 ceAbstractionStarter]: For program point L846(line 846) no Hoare annotation was computed. [2019-10-13 21:22:13,046 INFO L443 ceAbstractionStarter]: For program point L846-1(line 846) no Hoare annotation was computed. [2019-10-13 21:22:13,046 INFO L443 ceAbstractionStarter]: For program point printPumpENTRY(lines 816 851) no Hoare annotation was computed. [2019-10-13 21:22:13,046 INFO L443 ceAbstractionStarter]: For program point L835(lines 835 843) no Hoare annotation was computed. [2019-10-13 21:22:13,047 INFO L443 ceAbstractionStarter]: For program point printPumpEXIT(lines 816 851) no Hoare annotation was computed. [2019-10-13 21:22:13,047 INFO L443 ceAbstractionStarter]: For program point select_featuresEXIT(lines 559 565) no Hoare annotation was computed. [2019-10-13 21:22:13,047 INFO L446 ceAbstractionStarter]: At program point select_featuresFINAL(lines 559 565) the Hoare annotation is: true [2019-10-13 21:22:13,047 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_setENTRY(lines 46 91) no Hoare annotation was computed. [2019-10-13 21:22:13,047 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_setEXIT(lines 46 91) no Hoare annotation was computed. [2019-10-13 21:22:13,048 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_setFINAL(lines 46 91) no Hoare annotation was computed. [2019-10-13 21:22:13,048 INFO L443 ceAbstractionStarter]: For program point L379(lines 379 386) no Hoare annotation was computed. [2019-10-13 21:22:13,048 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argtypeFINAL(lines 359 404) no Hoare annotation was computed. [2019-10-13 21:22:13,048 INFO L443 ceAbstractionStarter]: For program point L373(lines 373 393) no Hoare annotation was computed. [2019-10-13 21:22:13,048 INFO L443 ceAbstractionStarter]: For program point L373-1(lines 373 393) no Hoare annotation was computed. [2019-10-13 21:22:13,048 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argtypeENTRY(lines 359 404) no Hoare annotation was computed. [2019-10-13 21:22:13,049 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argtypeEXIT(lines 359 404) no Hoare annotation was computed. [2019-10-13 21:22:13,049 INFO L446 ceAbstractionStarter]: At program point runTestENTRY(lines 502 511) the Hoare annotation is: true [2019-10-13 21:22:13,049 INFO L443 ceAbstractionStarter]: For program point runTestEXIT(lines 502 511) no Hoare annotation was computed. [2019-10-13 21:22:13,049 INFO L443 ceAbstractionStarter]: For program point runTestFINAL(lines 502 511) no Hoare annotation was computed. [2019-10-13 21:22:13,049 INFO L443 ceAbstractionStarter]: For program point L801(line 801) no Hoare annotation was computed. [2019-10-13 21:22:13,049 INFO L443 ceAbstractionStarter]: For program point L801-1(line 801) no Hoare annotation was computed. [2019-10-13 21:22:13,049 INFO L443 ceAbstractionStarter]: For program point isMethaneAlarmENTRY(lines 796 806) no Hoare annotation was computed. [2019-10-13 21:22:13,050 INFO L443 ceAbstractionStarter]: For program point isMethaneAlarmEXIT(lines 796 806) no Hoare annotation was computed. [2019-10-13 21:22:13,050 INFO L443 ceAbstractionStarter]: For program point isMethaneAlarmFINAL(lines 796 806) no Hoare annotation was computed. [2019-10-13 21:22:13,050 INFO L446 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 788 795) the Hoare annotation is: true [2019-10-13 21:22:13,050 INFO L443 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 788 795) no Hoare annotation was computed. [2019-10-13 21:22:13,050 INFO L443 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 788 795) no Hoare annotation was computed. [2019-10-13 21:22:13,050 INFO L443 ceAbstractionStarter]: For program point L671(lines 671 677) no Hoare annotation was computed. [2019-10-13 21:22:13,050 INFO L443 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 667 680) no Hoare annotation was computed. [2019-10-13 21:22:13,050 INFO L446 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 667 680) the Hoare annotation is: true [2019-10-13 21:22:13,051 INFO L443 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 667 680) no Hoare annotation was computed. [2019-10-13 21:22:13,051 INFO L446 ceAbstractionStarter]: At program point L769(line 769) the Hoare annotation is: true [2019-10-13 21:22:13,051 INFO L446 ceAbstractionStarter]: At program point L765(line 765) the Hoare annotation is: true [2019-10-13 21:22:13,051 INFO L443 ceAbstractionStarter]: For program point L763(lines 763 771) no Hoare annotation was computed. [2019-10-13 21:22:13,051 INFO L446 ceAbstractionStarter]: At program point L761(line 761) the Hoare annotation is: true [2019-10-13 21:22:13,052 INFO L443 ceAbstractionStarter]: For program point L761-1(line 761) no Hoare annotation was computed. [2019-10-13 21:22:13,052 INFO L443 ceAbstractionStarter]: For program point L759(lines 759 776) no Hoare annotation was computed. [2019-10-13 21:22:13,052 INFO L443 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 755 779) no Hoare annotation was computed. [2019-10-13 21:22:13,052 INFO L446 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 755 779) the Hoare annotation is: true [2019-10-13 21:22:13,052 INFO L446 ceAbstractionStarter]: At program point L774(line 774) the Hoare annotation is: true [2019-10-13 21:22:13,052 INFO L443 ceAbstractionStarter]: For program point L774-1(lines 755 779) no Hoare annotation was computed. [2019-10-13 21:22:13,053 INFO L443 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 721 727) no Hoare annotation was computed. [2019-10-13 21:22:13,053 INFO L446 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 721 727) the Hoare annotation is: true [2019-10-13 21:22:13,053 INFO L443 ceAbstractionStarter]: For program point L929(lines 929 935) no Hoare annotation was computed. [2019-10-13 21:22:13,053 INFO L443 ceAbstractionStarter]: For program point L929-1(lines 929 935) no Hoare annotation was computed. [2019-10-13 21:22:13,053 INFO L446 ceAbstractionStarter]: At program point testENTRY(lines 899 964) the Hoare annotation is: true [2019-10-13 21:22:13,054 INFO L446 ceAbstractionStarter]: At program point L954(lines 909 956) the Hoare annotation is: true [2019-10-13 21:22:13,054 INFO L446 ceAbstractionStarter]: At program point L921(line 921) the Hoare annotation is: true [2019-10-13 21:22:13,054 INFO L443 ceAbstractionStarter]: For program point L919(lines 919 925) no Hoare annotation was computed. [2019-10-13 21:22:13,054 INFO L443 ceAbstractionStarter]: For program point testFINAL(lines 899 964) no Hoare annotation was computed. [2019-10-13 21:22:13,054 INFO L443 ceAbstractionStarter]: For program point L919-1(lines 919 925) no Hoare annotation was computed. [2019-10-13 21:22:13,054 INFO L443 ceAbstractionStarter]: For program point L911(lines 911 915) no Hoare annotation was computed. [2019-10-13 21:22:13,055 INFO L446 ceAbstractionStarter]: At program point L957(lines 908 958) the Hoare annotation is: true [2019-10-13 21:22:13,055 INFO L443 ceAbstractionStarter]: For program point L947(lines 947 951) no Hoare annotation was computed. [2019-10-13 21:22:13,055 INFO L446 ceAbstractionStarter]: At program point L947-2(lines 939 952) the Hoare annotation is: true [2019-10-13 21:22:13,055 INFO L443 ceAbstractionStarter]: For program point L910(lines 909 956) no Hoare annotation was computed. [2019-10-13 21:22:13,055 INFO L446 ceAbstractionStarter]: At program point L941(line 941) the Hoare annotation is: true [2019-10-13 21:22:13,056 INFO L443 ceAbstractionStarter]: For program point L939(lines 939 952) no Hoare annotation was computed. [2019-10-13 21:22:13,056 INFO L446 ceAbstractionStarter]: At program point L931(line 931) the Hoare annotation is: true [2019-10-13 21:22:13,056 INFO L443 ceAbstractionStarter]: For program point testEXIT(lines 899 964) no Hoare annotation was computed. [2019-10-13 21:22:13,056 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argENTRY(lines 313 358) no Hoare annotation was computed. [2019-10-13 21:22:13,056 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argEXIT(lines 313 358) no Hoare annotation was computed. [2019-10-13 21:22:13,057 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argFINAL(lines 313 358) no Hoare annotation was computed. [2019-10-13 21:22:13,057 INFO L443 ceAbstractionStarter]: For program point L333(lines 333 340) no Hoare annotation was computed. [2019-10-13 21:22:13,057 INFO L443 ceAbstractionStarter]: For program point L327(lines 327 347) no Hoare annotation was computed. [2019-10-13 21:22:13,057 INFO L443 ceAbstractionStarter]: For program point L327-1(lines 327 347) no Hoare annotation was computed. [2019-10-13 21:22:13,057 INFO L443 ceAbstractionStarter]: For program point isLowWaterSensorDryFINAL(lines 681 689) no Hoare annotation was computed. [2019-10-13 21:22:13,057 INFO L446 ceAbstractionStarter]: At program point isLowWaterSensorDryENTRY(lines 681 689) the Hoare annotation is: true [2019-10-13 21:22:13,058 INFO L443 ceAbstractionStarter]: For program point isLowWaterSensorDryEXIT(lines 681 689) no Hoare annotation was computed. [2019-10-13 21:22:13,058 INFO L443 ceAbstractionStarter]: For program point L643-2(lines 643 651) no Hoare annotation was computed. [2019-10-13 21:22:13,058 INFO L443 ceAbstractionStarter]: For program point printEnvironmentEXIT(lines 635 657) no Hoare annotation was computed. [2019-10-13 21:22:13,058 INFO L443 ceAbstractionStarter]: For program point printEnvironmentENTRY(lines 635 657) no Hoare annotation was computed. [2019-10-13 21:22:13,058 INFO L443 ceAbstractionStarter]: For program point printEnvironmentFINAL(lines 635 657) no Hoare annotation was computed. [2019-10-13 21:22:13,059 INFO L443 ceAbstractionStarter]: For program point L643(lines 643 651) no Hoare annotation was computed. [2019-10-13 21:22:13,059 INFO L443 ceAbstractionStarter]: For program point L256(lines 256 297) no Hoare annotation was computed. [2019-10-13 21:22:13,059 INFO L443 ceAbstractionStarter]: For program point __utac__error_stack_mgtENTRY(lines 210 312) no Hoare annotation was computed. [2019-10-13 21:22:13,059 INFO L443 ceAbstractionStarter]: For program point L275(line 275) no Hoare annotation was computed. [2019-10-13 21:22:13,059 INFO L443 ceAbstractionStarter]: For program point L275-1(line 275) no Hoare annotation was computed. [2019-10-13 21:22:13,059 INFO L443 ceAbstractionStarter]: For program point L234(lines 234 238) no Hoare annotation was computed. [2019-10-13 21:22:13,060 INFO L443 ceAbstractionStarter]: For program point L298(lines 298 309) no Hoare annotation was computed. [2019-10-13 21:22:13,060 INFO L443 ceAbstractionStarter]: For program point __utac__error_stack_mgtFINAL(lines 210 312) no Hoare annotation was computed. [2019-10-13 21:22:13,060 INFO L443 ceAbstractionStarter]: For program point L261(lines 261 265) no Hoare annotation was computed. [2019-10-13 21:22:13,060 INFO L443 ceAbstractionStarter]: For program point L259-2(lines 259 279) no Hoare annotation was computed. [2019-10-13 21:22:13,060 INFO L443 ceAbstractionStarter]: For program point L280(lines 258 281) no Hoare annotation was computed. [2019-10-13 21:22:13,061 INFO L443 ceAbstractionStarter]: For program point __utac__error_stack_mgtEXIT(lines 210 312) no Hoare annotation was computed. [2019-10-13 21:22:13,061 INFO L443 ceAbstractionStarter]: For program point L239(lines 239 255) no Hoare annotation was computed. [2019-10-13 21:22:13,061 INFO L443 ceAbstractionStarter]: For program point L299(lines 299 306) no Hoare annotation was computed. [2019-10-13 21:22:13,061 INFO L443 ceAbstractionStarter]: For program point L260(lines 259 279) no Hoare annotation was computed. [2019-10-13 21:22:13,061 INFO L443 ceAbstractionStarter]: For program point L291(line 291) no Hoare annotation was computed. [2019-10-13 21:22:13,061 INFO L443 ceAbstractionStarter]: For program point L291-1(line 291) no Hoare annotation was computed. [2019-10-13 21:22:13,062 INFO L443 ceAbstractionStarter]: For program point select_oneENTRY(lines 549 558) no Hoare annotation was computed. [2019-10-13 21:22:13,062 INFO L443 ceAbstractionStarter]: For program point select_oneFINAL(lines 549 558) no Hoare annotation was computed. [2019-10-13 21:22:13,062 INFO L443 ceAbstractionStarter]: For program point select_oneEXIT(lines 549 558) no Hoare annotation was computed. [2019-10-13 21:22:13,062 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-13 21:22:13,062 INFO L439 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= |old(~waterLevel~0)| ~waterLevel~0)) [2019-10-13 21:22:13,063 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-13 21:22:13,063 INFO L443 ceAbstractionStarter]: For program point activatePumpFINAL(lines 780 787) no Hoare annotation was computed. [2019-10-13 21:22:13,065 INFO L443 ceAbstractionStarter]: For program point activatePumpEXIT(lines 780 787) no Hoare annotation was computed. [2019-10-13 21:22:13,065 INFO L446 ceAbstractionStarter]: At program point activatePumpENTRY(lines 780 787) the Hoare annotation is: true [2019-10-13 21:22:13,065 INFO L446 ceAbstractionStarter]: At program point getWaterLevelENTRY(lines 658 666) the Hoare annotation is: true [2019-10-13 21:22:13,066 INFO L443 ceAbstractionStarter]: For program point getWaterLevelFINAL(lines 658 666) no Hoare annotation was computed. [2019-10-13 21:22:13,066 INFO L443 ceAbstractionStarter]: For program point getWaterLevelEXIT(lines 658 666) no Hoare annotation was computed. [2019-10-13 21:22:13,066 INFO L443 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 852 870) no Hoare annotation was computed. [2019-10-13 21:22:13,066 INFO L443 ceAbstractionStarter]: For program point L861(lines 861 865) no Hoare annotation was computed. [2019-10-13 21:22:13,066 INFO L446 ceAbstractionStarter]: At program point L859(line 859) the Hoare annotation is: true [2019-10-13 21:22:13,066 INFO L443 ceAbstractionStarter]: For program point L861-2(lines 861 865) no Hoare annotation was computed. [2019-10-13 21:22:13,067 INFO L443 ceAbstractionStarter]: For program point L859-1(line 859) no Hoare annotation was computed. [2019-10-13 21:22:13,067 INFO L446 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 852 870) the Hoare annotation is: true [2019-10-13 21:22:13,067 INFO L443 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 852 870) no Hoare annotation was computed. [2019-10-13 21:22:13,067 INFO L443 ceAbstractionStarter]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2019-10-13 21:22:13,067 INFO L443 ceAbstractionStarter]: For program point ##fun~int~X~int~TO~intENTRY(line -1) no Hoare annotation was computed. [2019-10-13 21:22:13,067 INFO L443 ceAbstractionStarter]: For program point ##fun~int~X~int~TO~intFINAL(line -1) no Hoare annotation was computed. [2019-10-13 21:22:13,068 INFO L446 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 614 625) the Hoare annotation is: true [2019-10-13 21:22:13,068 INFO L443 ceAbstractionStarter]: For program point L618-1(lines 614 625) no Hoare annotation was computed. [2019-10-13 21:22:13,068 INFO L443 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 614 625) no Hoare annotation was computed. [2019-10-13 21:22:13,068 INFO L446 ceAbstractionStarter]: At program point L703(line 703) the Hoare annotation is: true [2019-10-13 21:22:13,068 INFO L443 ceAbstractionStarter]: For program point L701(lines 700 719) no Hoare annotation was computed. [2019-10-13 21:22:13,068 INFO L446 ceAbstractionStarter]: At program point timeShiftENTRY(lines 697 720) the Hoare annotation is: true [2019-10-13 21:22:13,068 INFO L443 ceAbstractionStarter]: For program point timeShiftEXIT(lines 697 720) no Hoare annotation was computed. [2019-10-13 21:22:13,068 INFO L443 ceAbstractionStarter]: For program point timeShiftFINAL(lines 697 720) no Hoare annotation was computed. [2019-10-13 21:22:13,070 INFO L446 ceAbstractionStarter]: At program point L710(line 710) the Hoare annotation is: true [2019-10-13 21:22:13,071 INFO L446 ceAbstractionStarter]: At program point L708(lines 708 714) the Hoare annotation is: true [2019-10-13 21:22:13,071 INFO L443 ceAbstractionStarter]: For program point L448(line 448) no Hoare annotation was computed. [2019-10-13 21:22:13,071 INFO L443 ceAbstractionStarter]: For program point cleanupEXIT(lines 437 466) no Hoare annotation was computed. [2019-10-13 21:22:13,071 INFO L446 ceAbstractionStarter]: At program point L447-2(lines 447 461) the Hoare annotation is: true [2019-10-13 21:22:13,071 INFO L446 ceAbstractionStarter]: At program point cleanupENTRY(lines 437 466) the Hoare annotation is: true [2019-10-13 21:22:13,071 INFO L446 ceAbstractionStarter]: At program point L443(line 443) the Hoare annotation is: true [2019-10-13 21:22:13,071 INFO L443 ceAbstractionStarter]: For program point L443-1(line 443) no Hoare annotation was computed. [2019-10-13 21:22:13,071 INFO L446 ceAbstractionStarter]: At program point L462(lines 437 466) the Hoare annotation is: true [2019-10-13 21:22:13,072 INFO L443 ceAbstractionStarter]: For program point L458(line 458) no Hoare annotation was computed. [2019-10-13 21:22:13,072 INFO L443 ceAbstractionStarter]: For program point L451(lines 451 455) no Hoare annotation was computed. [2019-10-13 21:22:13,072 INFO L446 ceAbstractionStarter]: At program point L451-1(lines 451 455) the Hoare annotation is: true [2019-10-13 21:22:13,072 INFO L443 ceAbstractionStarter]: For program point isMethaneLevelCriticalENTRY(lines 626 634) no Hoare annotation was computed. [2019-10-13 21:22:13,072 INFO L443 ceAbstractionStarter]: For program point isMethaneLevelCriticalFINAL(lines 626 634) no Hoare annotation was computed. [2019-10-13 21:22:13,072 INFO L443 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 626 634) no Hoare annotation was computed. [2019-10-13 21:22:13,073 INFO L443 ceAbstractionStarter]: For program point L594-1(lines 590 601) no Hoare annotation was computed. [2019-10-13 21:22:13,073 INFO L446 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 590 601) the Hoare annotation is: true [2019-10-13 21:22:13,073 INFO L443 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 590 601) no Hoare annotation was computed. [2019-10-13 21:22:13,074 INFO L443 ceAbstractionStarter]: For program point setupEXIT(lines 494 500) no Hoare annotation was computed. [2019-10-13 21:22:13,074 INFO L446 ceAbstractionStarter]: At program point setupFINAL(lines 494 500) the Hoare annotation is: true [2019-10-13 21:22:13,074 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-13 21:22:13,074 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: false [2019-10-13 21:22:13,074 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-13 21:22:13,074 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-13 21:22:13,074 INFO L443 ceAbstractionStarter]: For program point startSystemEXIT(lines 890 897) no Hoare annotation was computed. [2019-10-13 21:22:13,075 INFO L446 ceAbstractionStarter]: At program point startSystemENTRY(lines 890 897) the Hoare annotation is: true [2019-10-13 21:22:13,075 INFO L443 ceAbstractionStarter]: For program point startSystemFINAL(lines 890 897) no Hoare annotation was computed. [2019-10-13 21:22:13,075 INFO L443 ceAbstractionStarter]: For program point L737(lines 737 745) no Hoare annotation was computed. [2019-10-13 21:22:13,075 INFO L446 ceAbstractionStarter]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 729 753) the Hoare annotation is: true [2019-10-13 21:22:13,075 INFO L446 ceAbstractionStarter]: At program point L735(line 735) the Hoare annotation is: true [2019-10-13 21:22:13,075 INFO L443 ceAbstractionStarter]: For program point L735-1(line 735) no Hoare annotation was computed. [2019-10-13 21:22:13,075 INFO L443 ceAbstractionStarter]: For program point L733(lines 733 750) no Hoare annotation was computed. [2019-10-13 21:22:13,076 INFO L443 ceAbstractionStarter]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 729 753) no Hoare annotation was computed. [2019-10-13 21:22:13,076 INFO L446 ceAbstractionStarter]: At program point L748(line 748) the Hoare annotation is: true [2019-10-13 21:22:13,076 INFO L443 ceAbstractionStarter]: For program point L748-1(lines 729 753) no Hoare annotation was computed. [2019-10-13 21:22:13,076 INFO L446 ceAbstractionStarter]: At program point L743(line 743) the Hoare annotation is: true [2019-10-13 21:22:13,076 INFO L446 ceAbstractionStarter]: At program point L739(line 739) the Hoare annotation is: true [2019-10-13 21:22:13,076 INFO L443 ceAbstractionStarter]: For program point waterRiseEXIT(lines 602 613) no Hoare annotation was computed. [2019-10-13 21:22:13,077 INFO L443 ceAbstractionStarter]: For program point L606-1(lines 602 613) no Hoare annotation was computed. [2019-10-13 21:22:13,077 INFO L446 ceAbstractionStarter]: At program point waterRiseENTRY(lines 602 613) the Hoare annotation is: true [2019-10-13 21:22:13,077 INFO L443 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 539 546) no Hoare annotation was computed. [2019-10-13 21:22:13,077 INFO L446 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 539 546) the Hoare annotation is: true [2019-10-13 21:22:13,077 INFO L443 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 543) no Hoare annotation was computed. [2019-10-13 21:22:13,078 INFO L443 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 539 546) no Hoare annotation was computed. [2019-10-13 21:22:13,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 09:22:13 BoogieIcfgContainer [2019-10-13 21:22:13,088 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-13 21:22:13,092 INFO L168 Benchmark]: Toolchain (without parser) took 12056.15 ms. Allocated memory was 143.7 MB in the beginning and 404.2 MB in the end (delta: 260.6 MB). Free memory was 99.0 MB in the beginning and 323.1 MB in the end (delta: -224.1 MB). Peak memory consumption was 278.9 MB. Max. memory is 7.1 GB. [2019-10-13 21:22:13,099 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 143.7 MB. Free memory was 118.7 MB in the beginning and 118.5 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-13 21:22:13,101 INFO L168 Benchmark]: CACSL2BoogieTranslator took 629.50 ms. Allocated memory was 143.7 MB in the beginning and 201.3 MB in the end (delta: 57.7 MB). Free memory was 98.8 MB in the beginning and 167.5 MB in the end (delta: -68.7 MB). Peak memory consumption was 21.4 MB. Max. memory is 7.1 GB. [2019-10-13 21:22:13,102 INFO L168 Benchmark]: Boogie Preprocessor took 119.91 ms. Allocated memory is still 201.3 MB. Free memory was 167.5 MB in the beginning and 163.5 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2019-10-13 21:22:13,103 INFO L168 Benchmark]: RCFGBuilder took 1176.34 ms. Allocated memory was 201.3 MB in the beginning and 231.2 MB in the end (delta: 29.9 MB). Free memory was 163.5 MB in the beginning and 192.3 MB in the end (delta: -28.8 MB). Peak memory consumption was 85.0 MB. Max. memory is 7.1 GB. [2019-10-13 21:22:13,103 INFO L168 Benchmark]: TraceAbstraction took 10126.05 ms. Allocated memory was 231.2 MB in the beginning and 404.2 MB in the end (delta: 173.0 MB). Free memory was 192.3 MB in the beginning and 323.1 MB in the end (delta: -130.8 MB). Peak memory consumption was 284.7 MB. Max. memory is 7.1 GB. [2019-10-13 21:22:13,121 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 143.7 MB. Free memory was 118.7 MB in the beginning and 118.5 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 629.50 ms. Allocated memory was 143.7 MB in the beginning and 201.3 MB in the end (delta: 57.7 MB). Free memory was 98.8 MB in the beginning and 167.5 MB in the end (delta: -68.7 MB). Peak memory consumption was 21.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 119.91 ms. Allocated memory is still 201.3 MB. Free memory was 167.5 MB in the beginning and 163.5 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1176.34 ms. Allocated memory was 201.3 MB in the beginning and 231.2 MB in the end (delta: 29.9 MB). Free memory was 163.5 MB in the beginning and 192.3 MB in the end (delta: -28.8 MB). Peak memory consumption was 85.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 10126.05 ms. Allocated memory was 231.2 MB in the beginning and 404.2 MB in the end (delta: 173.0 MB). Free memory was 192.3 MB in the beginning and 323.1 MB in the end (delta: -130.8 MB). Peak memory consumption was 284.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 543]: 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: 908]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 447]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 437]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 909]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 239 locations, 1 error locations. Result: SAFE, OverallTime: 10.0s, OverallIterations: 11, TraceHistogramMax: 2, AutomataDifference: 3.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, HoareTripleCheckerStatistics: 1547 SDtfs, 1302 SDslu, 3821 SDs, 0 SdLazy, 1634 SolverSat, 574 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1057 GetRequests, 971 SyntacticMatches, 8 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=703occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 11 MinimizatonAttempts, 122 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 60 LocationsWithAnnotation, 1132 PreInvPairs, 1133 NumberOfFragments, 66 HoareAnnotationTreeSize, 1132 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 60 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 1637 NumberOfCodeBlocks, 1637 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 2158 ConstructedInterpolants, 0 QuantifiedInterpolants, 406405 SizeOfPredicates, 17 NumberOfNonLiveVariables, 3422 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 19 InterpolantComputations, 10 PerfectInterpolantSequences, 389/440 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 182, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 1.0, AVG_VARS_REMOVED_DURING_WEAKENING: 0.9051094890510949, AVG_WEAKENED_CONJUNCTS: 0.0, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...