./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe037_pso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/safe037_pso.opt.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6b3c250012519fd938045a9de2b2041e2cefaa93 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 03:08:44,664 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 03:08:44,667 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 03:08:44,690 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 03:08:44,691 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 03:08:44,692 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 03:08:44,693 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 03:08:44,695 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 03:08:44,697 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 03:08:44,698 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 03:08:44,699 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 03:08:44,700 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 03:08:44,700 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 03:08:44,701 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 03:08:44,702 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 03:08:44,703 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 03:08:44,704 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 03:08:44,705 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 03:08:44,706 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 03:08:44,708 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 03:08:44,715 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 03:08:44,716 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 03:08:44,717 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 03:08:44,718 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 03:08:44,721 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 03:08:44,721 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 03:08:44,721 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 03:08:44,722 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 03:08:44,722 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 03:08:44,723 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 03:08:44,723 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 03:08:44,724 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 03:08:44,725 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 03:08:44,725 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 03:08:44,726 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 03:08:44,727 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 03:08:44,727 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 03:08:44,727 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 03:08:44,728 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 03:08:44,728 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 03:08:44,729 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 03:08:44,730 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 03:08:44,753 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 03:08:44,753 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 03:08:44,754 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 03:08:44,754 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 03:08:44,754 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 03:08:44,755 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 03:08:44,755 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 03:08:44,755 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 03:08:44,755 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 03:08:44,755 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 03:08:44,756 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 03:08:44,756 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 03:08:44,756 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 03:08:44,756 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 03:08:44,756 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 03:08:44,756 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 03:08:44,757 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 03:08:44,757 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 03:08:44,757 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 03:08:44,757 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 03:08:44,757 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 03:08:44,758 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 03:08:44,758 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 03:08:44,758 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 03:08:44,758 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 03:08:44,758 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 03:08:44,758 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 03:08:44,759 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 03:08:44,759 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 03:08:44,759 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6b3c250012519fd938045a9de2b2041e2cefaa93 [2020-10-20 03:08:44,978 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 03:08:44,991 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 03:08:44,995 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 03:08:44,996 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 03:08:44,997 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 03:08:44,998 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe037_pso.opt.i [2020-10-20 03:08:45,064 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b70953421/cc8fe9cb953c4fb18eb6acbe4abaacb4/FLAGb544483a1 [2020-10-20 03:08:45,499 ERROR L? ?]: Error during toolchain job processing: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.cdt.parser.UltimateCdtExternalSettingsProvider$ToolchainDependency.access$0(UltimateCdtExternalSettingsProvider.java:86) at de.uni_freiburg.informatik.ultimate.cdt.parser.UltimateCdtExternalSettingsProvider.getSettings(UltimateCdtExternalSettingsProvider.java:67) at org.eclipse.cdt.core.settings.model.extension.CExternalSettingProvider.getSettings(CExternalSettingProvider.java:45) at org.eclipse.cdt.internal.core.settings.model.ExtensionContainerFactory$CExtensionSettingProviderDescriptor.getContainer(ExtensionContainerFactory.java:106) at org.eclipse.cdt.internal.core.settings.model.ExtensionContainerFactory.createContainer(ExtensionContainerFactory.java:181) at org.eclipse.cdt.internal.core.settings.model.CExternalSettingsManager$ContainerDescriptor.(CExternalSettingsManager.java:146) at org.eclipse.cdt.internal.core.settings.model.CExternalSettingsManager$ContainerDescriptor.(CExternalSettingsManager.java:139) at org.eclipse.cdt.internal.core.settings.model.CExternalSettingsManager.checkExternalSettingsChange(CExternalSettingsManager.java:683) at org.eclipse.cdt.internal.core.settings.model.CExternalSettingsManager.processContainerChange(CExternalSettingsManager.java:500) at org.eclipse.cdt.internal.core.settings.model.CExternalSettingsManager.access$3(CExternalSettingsManager.java:493) at org.eclipse.cdt.internal.core.settings.model.CExternalSettingsManager$2.run(CExternalSettingsManager.java:613) at org.eclipse.cdt.internal.core.settings.model.CProjectDescriptionManager$5.run(CProjectDescriptionManager.java:523) at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:2241) at org.eclipse.cdt.internal.core.settings.model.CProjectDescriptionManager.runAtomic(CProjectDescriptionManager.java:519) at org.eclipse.cdt.internal.core.settings.model.CProjectDescriptionManager.access$2(CProjectDescriptionManager.java:517) at org.eclipse.cdt.internal.core.settings.model.CProjectDescriptionManager$4.run(CProjectDescriptionManager.java:498) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-10-20 03:08:45,763 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 03:08:45,763 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe037_pso.opt.i [2020-10-20 03:08:45,779 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b70953421/cc8fe9cb953c4fb18eb6acbe4abaacb4/FLAGb544483a1 [2020-10-20 03:08:46,044 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b70953421/cc8fe9cb953c4fb18eb6acbe4abaacb4 [2020-10-20 03:08:46,048 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 03:08:46,054 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 03:08:46,056 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 03:08:46,056 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 03:08:46,060 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 03:08:46,061 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 03:08:46" (1/1) ... [2020-10-20 03:08:46,064 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15b1f048 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:08:46, skipping insertion in model container [2020-10-20 03:08:46,065 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 03:08:46" (1/1) ... [2020-10-20 03:08:46,074 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 03:08:46,132 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 03:08:46,596 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 03:08:46,609 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 03:08:46,663 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 03:08:46,749 INFO L208 MainTranslator]: Completed translation [2020-10-20 03:08:46,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:08:46 WrapperNode [2020-10-20 03:08:46,750 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 03:08:46,753 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 03:08:46,754 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 03:08:46,754 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 03:08:46,763 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:08:46" (1/1) ... [2020-10-20 03:08:46,780 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:08:46" (1/1) ... [2020-10-20 03:08:46,802 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 03:08:46,803 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 03:08:46,803 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 03:08:46,803 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 03:08:46,811 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:08:46" (1/1) ... [2020-10-20 03:08:46,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:08:46" (1/1) ... [2020-10-20 03:08:46,815 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:08:46" (1/1) ... [2020-10-20 03:08:46,815 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:08:46" (1/1) ... [2020-10-20 03:08:46,823 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:08:46" (1/1) ... [2020-10-20 03:08:46,825 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:08:46" (1/1) ... [2020-10-20 03:08:46,827 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:08:46" (1/1) ... [2020-10-20 03:08:46,831 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 03:08:46,831 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 03:08:46,832 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 03:08:46,832 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 03:08:46,833 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:08:46" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 03:08:46,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 03:08:46,907 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-20 03:08:46,907 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 03:08:46,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 03:08:46,907 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-20 03:08:46,907 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-20 03:08:46,907 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-20 03:08:46,908 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-20 03:08:46,908 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-20 03:08:46,908 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-20 03:08:46,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 03:08:46,908 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-20 03:08:46,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 03:08:46,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 03:08:46,911 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-20 03:08:47,274 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 03:08:47,275 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-20 03:08:47,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 03:08:47 BoogieIcfgContainer [2020-10-20 03:08:47,278 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 03:08:47,279 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 03:08:47,279 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 03:08:47,283 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 03:08:47,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 03:08:46" (1/3) ... [2020-10-20 03:08:47,284 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d21e052 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 03:08:47, skipping insertion in model container [2020-10-20 03:08:47,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:08:46" (2/3) ... [2020-10-20 03:08:47,285 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d21e052 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 03:08:47, skipping insertion in model container [2020-10-20 03:08:47,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 03:08:47" (3/3) ... [2020-10-20 03:08:47,287 INFO L111 eAbstractionObserver]: Analyzing ICFG safe037_pso.opt.i [2020-10-20 03:08:47,300 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-20 03:08:47,300 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 03:08:47,309 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 03:08:47,310 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-20 03:08:47,338 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:47,339 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:47,339 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:47,339 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:47,352 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:47,353 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:47,353 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:47,353 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:47,354 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:47,354 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:47,355 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:47,355 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:47,355 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:47,356 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:47,356 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:47,356 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:47,357 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:47,357 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:47,361 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:47,361 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:47,362 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:47,362 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:47,369 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:47,369 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:47,369 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:47,369 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:47,371 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:47,372 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:47,372 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:47,372 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:47,377 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-20 03:08:47,389 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-20 03:08:47,409 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 03:08:47,409 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 03:08:47,409 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 03:08:47,410 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 03:08:47,410 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 03:08:47,410 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 03:08:47,410 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 03:08:47,410 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 03:08:47,423 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-20 03:08:47,425 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 87 places, 80 transitions, 175 flow [2020-10-20 03:08:47,428 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 87 places, 80 transitions, 175 flow [2020-10-20 03:08:47,429 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 87 places, 80 transitions, 175 flow [2020-10-20 03:08:47,485 INFO L129 PetriNetUnfolder]: 3/77 cut-off events. [2020-10-20 03:08:47,485 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-20 03:08:47,491 INFO L80 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 77 events. 3/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 61 event pairs, 0 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-10-20 03:08:47,494 INFO L117 LiptonReduction]: Number of co-enabled transitions 1440 [2020-10-20 03:08:49,444 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-10-20 03:08:49,555 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-10-20 03:08:49,697 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2020-10-20 03:08:49,764 INFO L132 LiptonReduction]: Checked pairs total: 2901 [2020-10-20 03:08:49,764 INFO L134 LiptonReduction]: Total number of compositions: 75 [2020-10-20 03:08:49,772 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 57 flow [2020-10-20 03:08:49,799 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-10-20 03:08:49,802 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-10-20 03:08:49,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-20 03:08:49,825 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:08:49,826 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:08:49,827 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:08:49,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:08:49,833 INFO L82 PathProgramCache]: Analyzing trace with hash -1054042143, now seen corresponding path program 1 times [2020-10-20 03:08:49,843 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:08:49,844 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318787344] [2020-10-20 03:08:49,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:08:49,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:08:50,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:08:50,095 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318787344] [2020-10-20 03:08:50,096 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:08:50,097 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 03:08:50,097 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556902885] [2020-10-20 03:08:50,103 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 03:08:50,103 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:08:50,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 03:08:50,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 03:08:50,125 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 4 states. [2020-10-20 03:08:50,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:08:50,230 INFO L93 Difference]: Finished difference Result 281 states and 711 transitions. [2020-10-20 03:08:50,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 03:08:50,233 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-10-20 03:08:50,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:08:50,256 INFO L225 Difference]: With dead ends: 281 [2020-10-20 03:08:50,256 INFO L226 Difference]: Without dead ends: 180 [2020-10-20 03:08:50,258 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 03:08:50,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2020-10-20 03:08:50,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2020-10-20 03:08:50,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2020-10-20 03:08:50,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 440 transitions. [2020-10-20 03:08:50,317 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 440 transitions. Word has length 8 [2020-10-20 03:08:50,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:08:50,317 INFO L481 AbstractCegarLoop]: Abstraction has 180 states and 440 transitions. [2020-10-20 03:08:50,317 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 03:08:50,317 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 440 transitions. [2020-10-20 03:08:50,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-20 03:08:50,319 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:08:50,319 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:08:50,320 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 03:08:50,320 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:08:50,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:08:50,320 INFO L82 PathProgramCache]: Analyzing trace with hash 1550829140, now seen corresponding path program 1 times [2020-10-20 03:08:50,320 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:08:50,321 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161770525] [2020-10-20 03:08:50,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:08:50,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:08:50,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:08:50,404 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161770525] [2020-10-20 03:08:50,404 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:08:50,404 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 03:08:50,404 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318186254] [2020-10-20 03:08:50,406 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 03:08:50,406 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:08:50,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 03:08:50,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-20 03:08:50,407 INFO L87 Difference]: Start difference. First operand 180 states and 440 transitions. Second operand 5 states. [2020-10-20 03:08:50,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:08:50,454 INFO L93 Difference]: Finished difference Result 163 states and 368 transitions. [2020-10-20 03:08:50,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 03:08:50,454 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-10-20 03:08:50,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:08:50,456 INFO L225 Difference]: With dead ends: 163 [2020-10-20 03:08:50,456 INFO L226 Difference]: Without dead ends: 126 [2020-10-20 03:08:50,457 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-20 03:08:50,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-10-20 03:08:50,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2020-10-20 03:08:50,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-10-20 03:08:50,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 278 transitions. [2020-10-20 03:08:50,469 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 278 transitions. Word has length 11 [2020-10-20 03:08:50,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:08:50,469 INFO L481 AbstractCegarLoop]: Abstraction has 126 states and 278 transitions. [2020-10-20 03:08:50,469 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 03:08:50,469 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 278 transitions. [2020-10-20 03:08:50,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-20 03:08:50,471 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:08:50,471 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:08:50,471 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 03:08:50,471 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:08:50,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:08:50,472 INFO L82 PathProgramCache]: Analyzing trace with hash -1926964344, now seen corresponding path program 1 times [2020-10-20 03:08:50,472 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:08:50,485 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808375278] [2020-10-20 03:08:50,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:08:50,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:08:50,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:08:50,592 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808375278] [2020-10-20 03:08:50,592 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:08:50,592 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 03:08:50,593 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090596258] [2020-10-20 03:08:50,593 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 03:08:50,593 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:08:50,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 03:08:50,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-20 03:08:50,594 INFO L87 Difference]: Start difference. First operand 126 states and 278 transitions. Second operand 6 states. [2020-10-20 03:08:50,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:08:50,659 INFO L93 Difference]: Finished difference Result 118 states and 260 transitions. [2020-10-20 03:08:50,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 03:08:50,660 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-10-20 03:08:50,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:08:50,661 INFO L225 Difference]: With dead ends: 118 [2020-10-20 03:08:50,662 INFO L226 Difference]: Without dead ends: 108 [2020-10-20 03:08:50,662 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-10-20 03:08:50,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-10-20 03:08:50,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2020-10-20 03:08:50,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-10-20 03:08:50,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 242 transitions. [2020-10-20 03:08:50,671 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 242 transitions. Word has length 14 [2020-10-20 03:08:50,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:08:50,672 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 242 transitions. [2020-10-20 03:08:50,672 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 03:08:50,672 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 242 transitions. [2020-10-20 03:08:50,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-20 03:08:50,674 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:08:50,674 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:08:50,674 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 03:08:50,675 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:08:50,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:08:50,675 INFO L82 PathProgramCache]: Analyzing trace with hash 337836795, now seen corresponding path program 1 times [2020-10-20 03:08:50,676 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:08:50,676 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690982948] [2020-10-20 03:08:50,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:08:50,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:08:50,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:08:50,734 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690982948] [2020-10-20 03:08:50,735 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:08:50,735 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 03:08:50,735 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305686848] [2020-10-20 03:08:50,735 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 03:08:50,736 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:08:50,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 03:08:50,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 03:08:50,736 INFO L87 Difference]: Start difference. First operand 108 states and 242 transitions. Second operand 4 states. [2020-10-20 03:08:50,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:08:50,757 INFO L93 Difference]: Finished difference Result 133 states and 289 transitions. [2020-10-20 03:08:50,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 03:08:50,758 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-20 03:08:50,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:08:50,759 INFO L225 Difference]: With dead ends: 133 [2020-10-20 03:08:50,759 INFO L226 Difference]: Without dead ends: 54 [2020-10-20 03:08:50,759 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 03:08:50,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-10-20 03:08:50,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-10-20 03:08:50,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-20 03:08:50,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 98 transitions. [2020-10-20 03:08:50,764 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 98 transitions. Word has length 17 [2020-10-20 03:08:50,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:08:50,765 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 98 transitions. [2020-10-20 03:08:50,765 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 03:08:50,765 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 98 transitions. [2020-10-20 03:08:50,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-20 03:08:50,766 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:08:50,766 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:08:50,767 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-20 03:08:50,767 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:08:50,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:08:50,767 INFO L82 PathProgramCache]: Analyzing trace with hash 64468355, now seen corresponding path program 2 times [2020-10-20 03:08:50,768 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:08:50,768 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971217415] [2020-10-20 03:08:50,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:08:50,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:08:50,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:08:50,824 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971217415] [2020-10-20 03:08:50,824 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:08:50,824 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 03:08:50,825 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223522207] [2020-10-20 03:08:50,825 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 03:08:50,825 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:08:50,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 03:08:50,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 03:08:50,826 INFO L87 Difference]: Start difference. First operand 54 states and 98 transitions. Second operand 4 states. [2020-10-20 03:08:50,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:08:50,848 INFO L93 Difference]: Finished difference Result 67 states and 119 transitions. [2020-10-20 03:08:50,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 03:08:50,848 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-20 03:08:50,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:08:50,849 INFO L225 Difference]: With dead ends: 67 [2020-10-20 03:08:50,849 INFO L226 Difference]: Without dead ends: 30 [2020-10-20 03:08:50,850 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 03:08:50,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-10-20 03:08:50,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-10-20 03:08:50,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-20 03:08:50,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 44 transitions. [2020-10-20 03:08:50,853 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 44 transitions. Word has length 17 [2020-10-20 03:08:50,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:08:50,853 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 44 transitions. [2020-10-20 03:08:50,853 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 03:08:50,853 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2020-10-20 03:08:50,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-20 03:08:50,855 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:08:50,855 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:08:50,855 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-20 03:08:50,873 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:08:50,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:08:50,873 INFO L82 PathProgramCache]: Analyzing trace with hash -339277395, now seen corresponding path program 3 times [2020-10-20 03:08:50,874 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:08:50,875 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669143641] [2020-10-20 03:08:50,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:08:50,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:08:50,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:08:50,964 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669143641] [2020-10-20 03:08:50,965 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:08:50,965 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 03:08:50,965 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735351582] [2020-10-20 03:08:50,965 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 03:08:50,966 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:08:50,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 03:08:50,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 03:08:50,966 INFO L87 Difference]: Start difference. First operand 30 states and 44 transitions. Second operand 4 states. [2020-10-20 03:08:50,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:08:50,982 INFO L93 Difference]: Finished difference Result 29 states and 43 transitions. [2020-10-20 03:08:50,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 03:08:50,982 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-20 03:08:50,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:08:50,983 INFO L225 Difference]: With dead ends: 29 [2020-10-20 03:08:50,983 INFO L226 Difference]: Without dead ends: 0 [2020-10-20 03:08:50,983 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 03:08:50,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-20 03:08:50,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-20 03:08:50,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-20 03:08:50,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-20 03:08:50,984 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-10-20 03:08:50,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:08:50,985 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 03:08:50,985 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 03:08:50,985 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-20 03:08:50,985 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 03:08:50,985 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-20 03:08:50,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 03:08:50 BasicIcfg [2020-10-20 03:08:50,990 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 03:08:50,990 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 03:08:50,990 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 03:08:50,991 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 03:08:50,992 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 03:08:47" (3/4) ... [2020-10-20 03:08:50,996 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 03:08:51,004 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-10-20 03:08:51,004 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-10-20 03:08:51,005 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-10-20 03:08:51,014 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-10-20 03:08:51,016 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-20 03:08:51,016 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 03:08:51,016 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 03:08:51,113 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 03:08:51,114 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 03:08:51,119 INFO L168 Benchmark]: Toolchain (without parser) took 5068.83 ms. Allocated memory was 40.9 MB in the beginning and 71.3 MB in the end (delta: 30.4 MB). Free memory was 15.9 MB in the beginning and 38.3 MB in the end (delta: -22.3 MB). Peak memory consumption was 8.1 MB. Max. memory is 14.3 GB. [2020-10-20 03:08:51,124 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 30.9 MB. Free memory was 7.1 MB in the beginning and 7.1 MB in the end (delta: 43.7 kB). Peak memory consumption was 43.7 kB. Max. memory is 14.3 GB. [2020-10-20 03:08:51,125 INFO L168 Benchmark]: CACSL2BoogieTranslator took 696.73 ms. Allocated memory was 40.9 MB in the beginning and 43.5 MB in the end (delta: 2.6 MB). Free memory was 15.1 MB in the beginning and 26.2 MB in the end (delta: -11.1 MB). Peak memory consumption was 7.3 MB. Max. memory is 14.3 GB. [2020-10-20 03:08:51,126 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.25 ms. Allocated memory is still 43.5 MB. Free memory was 25.9 MB in the beginning and 23.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 14.3 GB. [2020-10-20 03:08:51,126 INFO L168 Benchmark]: Boogie Preprocessor took 28.19 ms. Allocated memory is still 43.5 MB. Free memory was 23.9 MB in the beginning and 22.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.3 GB. [2020-10-20 03:08:51,127 INFO L168 Benchmark]: RCFGBuilder took 446.31 ms. Allocated memory was 43.5 MB in the beginning and 45.1 MB in the end (delta: 1.6 MB). Free memory was 22.3 MB in the beginning and 14.8 MB in the end (delta: 7.5 MB). Peak memory consumption was 11.7 MB. Max. memory is 14.3 GB. [2020-10-20 03:08:51,128 INFO L168 Benchmark]: TraceAbstraction took 3710.83 ms. Allocated memory was 45.1 MB in the beginning and 71.3 MB in the end (delta: 26.2 MB). Free memory was 14.3 MB in the beginning and 41.7 MB in the end (delta: -27.4 MB). There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 03:08:51,131 INFO L168 Benchmark]: Witness Printer took 123.39 ms. Allocated memory is still 71.3 MB. Free memory was 41.7 MB in the beginning and 38.3 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 14.3 GB. [2020-10-20 03:08:51,136 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 30.9 MB. Free memory was 7.1 MB in the beginning and 7.1 MB in the end (delta: 43.7 kB). Peak memory consumption was 43.7 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 696.73 ms. Allocated memory was 40.9 MB in the beginning and 43.5 MB in the end (delta: 2.6 MB). Free memory was 15.1 MB in the beginning and 26.2 MB in the end (delta: -11.1 MB). Peak memory consumption was 7.3 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 49.25 ms. Allocated memory is still 43.5 MB. Free memory was 25.9 MB in the beginning and 23.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 28.19 ms. Allocated memory is still 43.5 MB. Free memory was 23.9 MB in the beginning and 22.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.3 GB. * RCFGBuilder took 446.31 ms. Allocated memory was 43.5 MB in the beginning and 45.1 MB in the end (delta: 1.6 MB). Free memory was 22.3 MB in the beginning and 14.8 MB in the end (delta: 7.5 MB). Peak memory consumption was 11.7 MB. Max. memory is 14.3 GB. * TraceAbstraction took 3710.83 ms. Allocated memory was 45.1 MB in the beginning and 71.3 MB in the end (delta: 26.2 MB). Free memory was 14.3 MB in the beginning and 41.7 MB in the end (delta: -27.4 MB). There was no memory consumed. Max. memory is 14.3 GB. * Witness Printer took 123.39 ms. Allocated memory is still 71.3 MB. Free memory was 41.7 MB in the beginning and 38.3 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 950 VarBasedMoverChecksPositive, 36 VarBasedMoverChecksNegative, 2 SemBasedMoverChecksPositive, 34 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 71 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.3s, 87 PlacesBefore, 31 PlacesAfterwards, 80 TransitionsBefore, 21 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 3 ChoiceCompositions, 75 TotalNumberOfCompositions, 2901 MoverChecksTotal - PositiveResult [Line: 17]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 78 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.5s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.3s, HoareTripleCheckerStatistics: 115 SDtfs, 168 SDslu, 151 SDs, 0 SdLazy, 57 SolverSat, 35 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 78 ConstructedInterpolants, 0 QuantifiedInterpolants, 2874 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...