./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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_1.5.800.v20200727-1323.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/goblint-regression/13-privatized_27-multiple-protecting2_true.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 --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 2d0b9c4fc8b0005fb250fdf1ff8e25835b95e676b1936e4f5fe1cf72245ee5f5 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 10:22:25,582 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 10:22:25,655 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-10 10:22:25,661 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 10:22:25,663 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 10:22:25,693 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 10:22:25,694 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 10:22:25,695 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 10:22:25,695 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 10:22:25,697 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 10:22:25,698 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 10:22:25,698 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 10:22:25,699 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 10:22:25,701 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 10:22:25,701 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 10:22:25,701 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 10:22:25,702 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 10:22:25,702 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 10:22:25,702 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 10:22:25,703 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 10:22:25,706 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 10:22:25,707 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 10:22:25,707 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 10:22:25,707 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 10:22:25,707 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 10:22:25,707 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 10:22:25,708 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 10:22:25,708 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 10:22:25,708 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 10:22:25,708 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 10:22:25,709 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 10:22:25,709 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 10:22:25,709 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 10:22:25,709 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 10:22:25,709 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 10:22:25,710 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 10:22:25,710 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 10:22:25,711 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 10:22:25,712 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 10:22:25,712 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 10:22:25,712 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 10:22:25,713 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 10:22:25,713 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d0b9c4fc8b0005fb250fdf1ff8e25835b95e676b1936e4f5fe1cf72245ee5f5 [2024-11-10 10:22:25,991 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 10:22:26,020 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 10:22:26,025 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 10:22:26,026 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 10:22:26,026 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 10:22:26,028 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i [2024-11-10 10:22:27,437 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 10:22:27,704 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 10:22:27,705 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i [2024-11-10 10:22:27,721 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fced8d214/76c57a3b3291415ea6c157ab0f1aed2b/FLAG4a7a69b2d [2024-11-10 10:22:27,741 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fced8d214/76c57a3b3291415ea6c157ab0f1aed2b [2024-11-10 10:22:27,746 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 10:22:27,748 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 10:22:27,751 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 10:22:27,751 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 10:22:27,756 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 10:22:27,757 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:22:27" (1/1) ... [2024-11-10 10:22:27,758 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@403b96e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:22:27, skipping insertion in model container [2024-11-10 10:22:27,758 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:22:27" (1/1) ... [2024-11-10 10:22:27,808 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 10:22:28,024 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i[1097,1110] [2024-11-10 10:22:28,162 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 10:22:28,192 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 10:22:28,204 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i[1097,1110] [2024-11-10 10:22:28,275 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 10:22:28,330 INFO L204 MainTranslator]: Completed translation [2024-11-10 10:22:28,330 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:22:28 WrapperNode [2024-11-10 10:22:28,330 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 10:22:28,331 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 10:22:28,332 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 10:22:28,332 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 10:22:28,339 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:22:28" (1/1) ... [2024-11-10 10:22:28,355 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:22:28" (1/1) ... [2024-11-10 10:22:28,376 INFO L138 Inliner]: procedures = 163, calls = 54, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 109 [2024-11-10 10:22:28,376 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 10:22:28,377 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 10:22:28,377 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 10:22:28,378 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 10:22:28,386 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:22:28" (1/1) ... [2024-11-10 10:22:28,387 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:22:28" (1/1) ... [2024-11-10 10:22:28,390 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:22:28" (1/1) ... [2024-11-10 10:22:28,405 INFO L175 MemorySlicer]: Split 17 memory accesses to 4 slices as follows [2, 5, 5, 5]. 29 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 5, 5, 5]. The 0 writes are split as follows [0, 0, 0, 0]. [2024-11-10 10:22:28,406 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:22:28" (1/1) ... [2024-11-10 10:22:28,406 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:22:28" (1/1) ... [2024-11-10 10:22:28,412 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:22:28" (1/1) ... [2024-11-10 10:22:28,413 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:22:28" (1/1) ... [2024-11-10 10:22:28,415 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:22:28" (1/1) ... [2024-11-10 10:22:28,416 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:22:28" (1/1) ... [2024-11-10 10:22:28,419 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 10:22:28,420 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 10:22:28,420 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 10:22:28,420 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 10:22:28,421 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:22:28" (1/1) ... [2024-11-10 10:22:28,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 10:22:28,441 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 10:22:28,457 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-10 10:22:28,459 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-10 10:22:28,506 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-11-10 10:22:28,507 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-11-10 10:22:28,507 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-10 10:22:28,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 10:22:28,507 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-10 10:22:28,507 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-10 10:22:28,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 10:22:28,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 10:22:28,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-10 10:22:28,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-10 10:22:28,508 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-10 10:22:28,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 10:22:28,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 10:22:28,510 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 10:22:28,659 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 10:22:28,661 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 10:22:28,939 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 10:22:28,939 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 10:22:29,136 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 10:22:29,136 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 10:22:29,137 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:22:29 BoogieIcfgContainer [2024-11-10 10:22:29,137 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 10:22:29,139 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 10:22:29,139 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 10:22:29,143 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 10:22:29,143 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 10:22:27" (1/3) ... [2024-11-10 10:22:29,144 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3089a2a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:22:29, skipping insertion in model container [2024-11-10 10:22:29,144 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:22:28" (2/3) ... [2024-11-10 10:22:29,144 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3089a2a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:22:29, skipping insertion in model container [2024-11-10 10:22:29,144 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:22:29" (3/3) ... [2024-11-10 10:22:29,146 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_27-multiple-protecting2_true.i [2024-11-10 10:22:29,158 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 10:22:29,159 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-10 10:22:29,159 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 10:22:29,214 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-10 10:22:29,256 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 83 places, 80 transitions, 174 flow [2024-11-10 10:22:29,302 INFO L124 PetriNetUnfolderBase]: 4/78 cut-off events. [2024-11-10 10:22:29,302 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-10 10:22:29,306 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 78 events. 4/78 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 96 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 75. Up to 2 conditions per place. [2024-11-10 10:22:29,307 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 80 transitions, 174 flow [2024-11-10 10:22:29,310 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 72 places, 68 transitions, 142 flow [2024-11-10 10:22:29,318 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 10:22:29,325 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@439878a5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 10:22:29,326 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-10 10:22:29,333 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 10:22:29,333 INFO L124 PetriNetUnfolderBase]: 1/28 cut-off events. [2024-11-10 10:22:29,333 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 10:22:29,333 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:22:29,334 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:22:29,334 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-10 10:22:29,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:22:29,338 INFO L85 PathProgramCache]: Analyzing trace with hash -930595457, now seen corresponding path program 1 times [2024-11-10 10:22:29,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:22:29,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079779913] [2024-11-10 10:22:29,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:22:29,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:22:29,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:22:29,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:22:29,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:22:29,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079779913] [2024-11-10 10:22:29,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079779913] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:22:29,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:22:29,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 10:22:29,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178667093] [2024-11-10 10:22:29,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:22:29,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 10:22:29,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:22:29,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 10:22:29,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 10:22:29,872 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 80 [2024-11-10 10:22:29,880 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 68 transitions, 142 flow. Second operand has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:22:29,880 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:22:29,883 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 80 [2024-11-10 10:22:29,891 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:22:31,161 INFO L124 PetriNetUnfolderBase]: 4727/8284 cut-off events. [2024-11-10 10:22:31,161 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-10 10:22:31,184 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15778 conditions, 8284 events. 4727/8284 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 201. Compared 56918 event pairs, 1134 based on Foata normal form. 340/8373 useless extension candidates. Maximal degree in co-relation 15768. Up to 4568 conditions per place. [2024-11-10 10:22:31,262 INFO L140 encePairwiseOnDemand]: 63/80 looper letters, 93 selfloop transitions, 15 changer transitions 1/127 dead transitions. [2024-11-10 10:22:31,263 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 127 transitions, 481 flow [2024-11-10 10:22:31,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 10:22:31,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 10:22:31,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 229 transitions. [2024-11-10 10:22:31,276 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5725 [2024-11-10 10:22:31,279 INFO L175 Difference]: Start difference. First operand has 72 places, 68 transitions, 142 flow. Second operand 5 states and 229 transitions. [2024-11-10 10:22:31,280 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 127 transitions, 481 flow [2024-11-10 10:22:31,284 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 127 transitions, 478 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 10:22:31,291 INFO L231 Difference]: Finished difference. Result has 78 places, 74 transitions, 234 flow [2024-11-10 10:22:31,294 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=234, PETRI_PLACES=78, PETRI_TRANSITIONS=74} [2024-11-10 10:22:31,298 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, 6 predicate places. [2024-11-10 10:22:31,299 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 74 transitions, 234 flow [2024-11-10 10:22:31,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:22:31,299 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:22:31,300 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:22:31,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 10:22:31,300 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-10 10:22:31,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:22:31,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1935451257, now seen corresponding path program 1 times [2024-11-10 10:22:31,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:22:31,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950404891] [2024-11-10 10:22:31,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:22:31,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:22:31,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:22:31,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:22:31,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:22:31,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950404891] [2024-11-10 10:22:31,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950404891] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:22:31,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:22:31,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 10:22:31,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458197786] [2024-11-10 10:22:31,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:22:31,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 10:22:31,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:22:31,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 10:22:31,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-10 10:22:31,517 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 80 [2024-11-10 10:22:31,518 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 74 transitions, 234 flow. Second operand has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:22:31,518 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:22:31,518 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 80 [2024-11-10 10:22:31,518 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:22:32,116 INFO L124 PetriNetUnfolderBase]: 2024/4189 cut-off events. [2024-11-10 10:22:32,116 INFO L125 PetriNetUnfolderBase]: For 852/880 co-relation queries the response was YES. [2024-11-10 10:22:32,124 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8990 conditions, 4189 events. 2024/4189 cut-off events. For 852/880 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 28051 event pairs, 539 based on Foata normal form. 220/4399 useless extension candidates. Maximal degree in co-relation 8976. Up to 2603 conditions per place. [2024-11-10 10:22:32,145 INFO L140 encePairwiseOnDemand]: 74/80 looper letters, 89 selfloop transitions, 6 changer transitions 0/119 dead transitions. [2024-11-10 10:22:32,145 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 119 transitions, 570 flow [2024-11-10 10:22:32,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 10:22:32,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 10:22:32,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 190 transitions. [2024-11-10 10:22:32,147 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.59375 [2024-11-10 10:22:32,147 INFO L175 Difference]: Start difference. First operand has 78 places, 74 transitions, 234 flow. Second operand 4 states and 190 transitions. [2024-11-10 10:22:32,148 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 119 transitions, 570 flow [2024-11-10 10:22:32,169 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 119 transitions, 562 flow, removed 4 selfloop flow, removed 0 redundant places. [2024-11-10 10:22:32,172 INFO L231 Difference]: Finished difference. Result has 82 places, 77 transitions, 259 flow [2024-11-10 10:22:32,172 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=259, PETRI_PLACES=82, PETRI_TRANSITIONS=77} [2024-11-10 10:22:32,173 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, 10 predicate places. [2024-11-10 10:22:32,174 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 77 transitions, 259 flow [2024-11-10 10:22:32,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:22:32,174 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:22:32,174 INFO L204 CegarLoopForPetriNet]: 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] [2024-11-10 10:22:32,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 10:22:32,175 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-10 10:22:32,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:22:32,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1929490233, now seen corresponding path program 1 times [2024-11-10 10:22:32,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:22:32,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122507201] [2024-11-10 10:22:32,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:22:32,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:22:32,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:22:32,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:22:32,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:22:32,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122507201] [2024-11-10 10:22:32,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122507201] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:22:32,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:22:32,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 10:22:32,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219954927] [2024-11-10 10:22:32,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:22:32,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 10:22:32,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:22:32,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 10:22:32,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 10:22:32,377 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 80 [2024-11-10 10:22:32,378 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 77 transitions, 259 flow. Second operand has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:22:32,378 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:22:32,378 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 80 [2024-11-10 10:22:32,378 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:22:32,992 INFO L124 PetriNetUnfolderBase]: 2209/4343 cut-off events. [2024-11-10 10:22:32,993 INFO L125 PetriNetUnfolderBase]: For 1270/1270 co-relation queries the response was YES. [2024-11-10 10:22:33,003 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9982 conditions, 4343 events. 2209/4343 cut-off events. For 1270/1270 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 28098 event pairs, 1239 based on Foata normal form. 100/4430 useless extension candidates. Maximal degree in co-relation 9965. Up to 2338 conditions per place. [2024-11-10 10:22:33,024 INFO L140 encePairwiseOnDemand]: 65/80 looper letters, 91 selfloop transitions, 23 changer transitions 5/137 dead transitions. [2024-11-10 10:22:33,024 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 137 transitions, 691 flow [2024-11-10 10:22:33,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 10:22:33,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 10:22:33,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 241 transitions. [2024-11-10 10:22:33,028 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5020833333333333 [2024-11-10 10:22:33,028 INFO L175 Difference]: Start difference. First operand has 82 places, 77 transitions, 259 flow. Second operand 6 states and 241 transitions. [2024-11-10 10:22:33,028 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 137 transitions, 691 flow [2024-11-10 10:22:33,038 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 137 transitions, 690 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 10:22:33,041 INFO L231 Difference]: Finished difference. Result has 88 places, 86 transitions, 395 flow [2024-11-10 10:22:33,041 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=395, PETRI_PLACES=88, PETRI_TRANSITIONS=86} [2024-11-10 10:22:33,043 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, 16 predicate places. [2024-11-10 10:22:33,044 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 86 transitions, 395 flow [2024-11-10 10:22:33,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:22:33,044 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:22:33,044 INFO L204 CegarLoopForPetriNet]: 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] [2024-11-10 10:22:33,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 10:22:33,045 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-10 10:22:33,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:22:33,046 INFO L85 PathProgramCache]: Analyzing trace with hash -80497167, now seen corresponding path program 1 times [2024-11-10 10:22:33,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:22:33,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408853065] [2024-11-10 10:22:33,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:22:33,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:22:33,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:22:33,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:22:33,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:22:33,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408853065] [2024-11-10 10:22:33,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408853065] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:22:33,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:22:33,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 10:22:33,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126182734] [2024-11-10 10:22:33,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:22:33,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 10:22:33,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:22:33,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 10:22:33,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 10:22:33,163 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 80 [2024-11-10 10:22:33,164 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 86 transitions, 395 flow. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:22:33,164 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:22:33,164 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 80 [2024-11-10 10:22:33,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:22:33,702 INFO L124 PetriNetUnfolderBase]: 2035/4102 cut-off events. [2024-11-10 10:22:33,703 INFO L125 PetriNetUnfolderBase]: For 2950/2950 co-relation queries the response was YES. [2024-11-10 10:22:33,713 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10326 conditions, 4102 events. 2035/4102 cut-off events. For 2950/2950 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 26877 event pairs, 608 based on Foata normal form. 44/4138 useless extension candidates. Maximal degree in co-relation 10306. Up to 2599 conditions per place. [2024-11-10 10:22:33,735 INFO L140 encePairwiseOnDemand]: 70/80 looper letters, 96 selfloop transitions, 31 changer transitions 1/146 dead transitions. [2024-11-10 10:22:33,736 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 146 transitions, 934 flow [2024-11-10 10:22:33,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 10:22:33,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 10:22:33,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 210 transitions. [2024-11-10 10:22:33,737 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.525 [2024-11-10 10:22:33,737 INFO L175 Difference]: Start difference. First operand has 88 places, 86 transitions, 395 flow. Second operand 5 states and 210 transitions. [2024-11-10 10:22:33,737 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 146 transitions, 934 flow [2024-11-10 10:22:33,750 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 146 transitions, 902 flow, removed 8 selfloop flow, removed 2 redundant places. [2024-11-10 10:22:33,753 INFO L231 Difference]: Finished difference. Result has 94 places, 99 transitions, 601 flow [2024-11-10 10:22:33,753 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=375, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=601, PETRI_PLACES=94, PETRI_TRANSITIONS=99} [2024-11-10 10:22:33,755 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, 22 predicate places. [2024-11-10 10:22:33,756 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 99 transitions, 601 flow [2024-11-10 10:22:33,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:22:33,757 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:22:33,757 INFO L204 CegarLoopForPetriNet]: 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] [2024-11-10 10:22:33,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 10:22:33,757 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-10 10:22:33,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:22:33,757 INFO L85 PathProgramCache]: Analyzing trace with hash -1553500807, now seen corresponding path program 1 times [2024-11-10 10:22:33,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:22:33,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856929477] [2024-11-10 10:22:33,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:22:33,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:22:33,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:22:33,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:22:33,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:22:33,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856929477] [2024-11-10 10:22:33,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856929477] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:22:33,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:22:33,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 10:22:33,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521813076] [2024-11-10 10:22:33,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:22:33,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 10:22:33,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:22:33,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 10:22:33,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-10 10:22:33,878 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 80 [2024-11-10 10:22:33,879 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 99 transitions, 601 flow. Second operand has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:22:33,879 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:22:33,879 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 80 [2024-11-10 10:22:33,879 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:22:34,305 INFO L124 PetriNetUnfolderBase]: 1122/2511 cut-off events. [2024-11-10 10:22:34,305 INFO L125 PetriNetUnfolderBase]: For 2210/2222 co-relation queries the response was YES. [2024-11-10 10:22:34,313 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7034 conditions, 2511 events. 1122/2511 cut-off events. For 2210/2222 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 15919 event pairs, 371 based on Foata normal form. 309/2783 useless extension candidates. Maximal degree in co-relation 7010. Up to 1289 conditions per place. [2024-11-10 10:22:34,326 INFO L140 encePairwiseOnDemand]: 63/80 looper letters, 70 selfloop transitions, 17 changer transitions 2/120 dead transitions. [2024-11-10 10:22:34,326 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 120 transitions, 847 flow [2024-11-10 10:22:34,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 10:22:34,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 10:22:34,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 180 transitions. [2024-11-10 10:22:34,328 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5625 [2024-11-10 10:22:34,329 INFO L175 Difference]: Start difference. First operand has 94 places, 99 transitions, 601 flow. Second operand 4 states and 180 transitions. [2024-11-10 10:22:34,329 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 120 transitions, 847 flow [2024-11-10 10:22:34,345 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 120 transitions, 827 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-10 10:22:34,347 INFO L231 Difference]: Finished difference. Result has 97 places, 99 transitions, 607 flow [2024-11-10 10:22:34,347 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=532, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=607, PETRI_PLACES=97, PETRI_TRANSITIONS=99} [2024-11-10 10:22:34,350 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, 25 predicate places. [2024-11-10 10:22:34,351 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 99 transitions, 607 flow [2024-11-10 10:22:34,351 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:22:34,352 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:22:34,352 INFO L204 CegarLoopForPetriNet]: 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] [2024-11-10 10:22:34,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 10:22:34,352 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-10 10:22:34,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:22:34,353 INFO L85 PathProgramCache]: Analyzing trace with hash -49330474, now seen corresponding path program 1 times [2024-11-10 10:22:34,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:22:34,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352117426] [2024-11-10 10:22:34,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:22:34,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:22:34,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:22:34,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:22:34,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:22:34,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352117426] [2024-11-10 10:22:34,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352117426] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:22:34,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:22:34,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 10:22:34,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580254712] [2024-11-10 10:22:34,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:22:34,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 10:22:34,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:22:34,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 10:22:34,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-10 10:22:34,685 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 80 [2024-11-10 10:22:34,685 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 99 transitions, 607 flow. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 5 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:22:34,685 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:22:34,685 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 80 [2024-11-10 10:22:34,685 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:22:34,967 INFO L124 PetriNetUnfolderBase]: 824/1975 cut-off events. [2024-11-10 10:22:34,967 INFO L125 PetriNetUnfolderBase]: For 2192/2196 co-relation queries the response was YES. [2024-11-10 10:22:34,973 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6043 conditions, 1975 events. 824/1975 cut-off events. For 2192/2196 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 12009 event pairs, 237 based on Foata normal form. 64/2033 useless extension candidates. Maximal degree in co-relation 6017. Up to 1463 conditions per place. [2024-11-10 10:22:34,982 INFO L140 encePairwiseOnDemand]: 76/80 looper letters, 60 selfloop transitions, 6 changer transitions 11/99 dead transitions. [2024-11-10 10:22:34,983 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 99 transitions, 715 flow [2024-11-10 10:22:34,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 10:22:34,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 10:22:34,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 159 transitions. [2024-11-10 10:22:34,985 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.496875 [2024-11-10 10:22:34,985 INFO L175 Difference]: Start difference. First operand has 97 places, 99 transitions, 607 flow. Second operand 4 states and 159 transitions. [2024-11-10 10:22:34,985 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 99 transitions, 715 flow [2024-11-10 10:22:34,993 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 99 transitions, 634 flow, removed 4 selfloop flow, removed 6 redundant places. [2024-11-10 10:22:34,995 INFO L231 Difference]: Finished difference. Result has 86 places, 74 transitions, 390 flow [2024-11-10 10:22:34,998 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=432, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=390, PETRI_PLACES=86, PETRI_TRANSITIONS=74} [2024-11-10 10:22:34,998 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, 14 predicate places. [2024-11-10 10:22:34,999 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 74 transitions, 390 flow [2024-11-10 10:22:34,999 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 5 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:22:34,999 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:22:34,999 INFO L204 CegarLoopForPetriNet]: 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] [2024-11-10 10:22:35,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 10:22:35,001 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-10 10:22:35,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:22:35,001 INFO L85 PathProgramCache]: Analyzing trace with hash 653978128, now seen corresponding path program 1 times [2024-11-10 10:22:35,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:22:35,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599980850] [2024-11-10 10:22:35,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:22:35,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:22:35,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:22:35,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:22:35,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:22:35,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599980850] [2024-11-10 10:22:35,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599980850] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:22:35,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:22:35,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 10:22:35,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638131697] [2024-11-10 10:22:35,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:22:35,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 10:22:35,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:22:35,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 10:22:35,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-10 10:22:35,247 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 80 [2024-11-10 10:22:35,247 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 74 transitions, 390 flow. Second operand has 6 states, 6 states have (on average 29.666666666666668) internal successors, (178), 6 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:22:35,247 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:22:35,247 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 80 [2024-11-10 10:22:35,247 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:22:35,466 INFO L124 PetriNetUnfolderBase]: 547/1317 cut-off events. [2024-11-10 10:22:35,466 INFO L125 PetriNetUnfolderBase]: For 1276/1276 co-relation queries the response was YES. [2024-11-10 10:22:35,469 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3768 conditions, 1317 events. 547/1317 cut-off events. For 1276/1276 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 7038 event pairs, 215 based on Foata normal form. 47/1358 useless extension candidates. Maximal degree in co-relation 3744. Up to 713 conditions per place. [2024-11-10 10:22:35,474 INFO L140 encePairwiseOnDemand]: 76/80 looper letters, 65 selfloop transitions, 5 changer transitions 4/94 dead transitions. [2024-11-10 10:22:35,475 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 94 transitions, 646 flow [2024-11-10 10:22:35,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 10:22:35,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 10:22:35,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 158 transitions. [2024-11-10 10:22:35,476 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49375 [2024-11-10 10:22:35,476 INFO L175 Difference]: Start difference. First operand has 86 places, 74 transitions, 390 flow. Second operand 4 states and 158 transitions. [2024-11-10 10:22:35,476 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 94 transitions, 646 flow [2024-11-10 10:22:35,481 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 94 transitions, 588 flow, removed 2 selfloop flow, removed 6 redundant places. [2024-11-10 10:22:35,483 INFO L231 Difference]: Finished difference. Result has 77 places, 69 transitions, 319 flow [2024-11-10 10:22:35,483 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=340, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=319, PETRI_PLACES=77, PETRI_TRANSITIONS=69} [2024-11-10 10:22:35,484 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, 5 predicate places. [2024-11-10 10:22:35,484 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 69 transitions, 319 flow [2024-11-10 10:22:35,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.666666666666668) internal successors, (178), 6 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:22:35,484 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:22:35,484 INFO L204 CegarLoopForPetriNet]: 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] [2024-11-10 10:22:35,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 10:22:35,485 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-10 10:22:35,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:22:35,485 INFO L85 PathProgramCache]: Analyzing trace with hash -2069063753, now seen corresponding path program 1 times [2024-11-10 10:22:35,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:22:35,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490065849] [2024-11-10 10:22:35,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:22:35,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:22:35,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:22:35,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:22:35,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:22:35,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490065849] [2024-11-10 10:22:35,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490065849] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:22:35,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:22:35,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 10:22:35,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687212200] [2024-11-10 10:22:35,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:22:35,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 10:22:35,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:22:35,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 10:22:35,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 10:22:35,631 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 80 [2024-11-10 10:22:35,632 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 69 transitions, 319 flow. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 5 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:22:35,632 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:22:35,632 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 80 [2024-11-10 10:22:35,632 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:22:35,847 INFO L124 PetriNetUnfolderBase]: 586/1296 cut-off events. [2024-11-10 10:22:35,847 INFO L125 PetriNetUnfolderBase]: For 944/944 co-relation queries the response was YES. [2024-11-10 10:22:35,850 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3677 conditions, 1296 events. 586/1296 cut-off events. For 944/944 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 6718 event pairs, 368 based on Foata normal form. 12/1301 useless extension candidates. Maximal degree in co-relation 3656. Up to 827 conditions per place. [2024-11-10 10:22:35,852 INFO L140 encePairwiseOnDemand]: 71/80 looper letters, 0 selfloop transitions, 0 changer transitions 97/97 dead transitions. [2024-11-10 10:22:35,852 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 97 transitions, 625 flow [2024-11-10 10:22:35,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 10:22:35,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 10:22:35,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 197 transitions. [2024-11-10 10:22:35,854 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.41041666666666665 [2024-11-10 10:22:35,854 INFO L175 Difference]: Start difference. First operand has 77 places, 69 transitions, 319 flow. Second operand 6 states and 197 transitions. [2024-11-10 10:22:35,854 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 97 transitions, 625 flow [2024-11-10 10:22:35,857 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 97 transitions, 610 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-11-10 10:22:35,858 INFO L231 Difference]: Finished difference. Result has 77 places, 0 transitions, 0 flow [2024-11-10 10:22:35,858 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=302, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=77, PETRI_TRANSITIONS=0} [2024-11-10 10:22:35,860 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, 5 predicate places. [2024-11-10 10:22:35,863 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 0 transitions, 0 flow [2024-11-10 10:22:35,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 5 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:22:35,866 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2024-11-10 10:22:35,867 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2024-11-10 10:22:35,867 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (3 of 6 remaining) [2024-11-10 10:22:35,868 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 6 remaining) [2024-11-10 10:22:35,868 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2024-11-10 10:22:35,868 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 6 remaining) [2024-11-10 10:22:35,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 10:22:35,871 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:22:35,875 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-10 10:22:35,875 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-10 10:22:35,883 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 10:22:35 BasicIcfg [2024-11-10 10:22:35,886 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-10 10:22:35,886 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-10 10:22:35,887 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-10 10:22:35,887 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-10 10:22:35,887 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:22:29" (3/4) ... [2024-11-10 10:22:35,890 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-10 10:22:35,894 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure t2_fun [2024-11-10 10:22:35,895 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-11-10 10:22:35,900 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 32 nodes and edges [2024-11-10 10:22:35,900 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-11-10 10:22:35,900 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-10 10:22:35,900 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-10 10:22:35,993 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-10 10:22:35,993 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-10 10:22:35,993 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-10 10:22:35,994 INFO L158 Benchmark]: Toolchain (without parser) took 8246.83ms. Allocated memory was 163.6MB in the beginning and 444.6MB in the end (delta: 281.0MB). Free memory was 90.8MB in the beginning and 156.5MB in the end (delta: -65.7MB). Peak memory consumption was 216.2MB. Max. memory is 16.1GB. [2024-11-10 10:22:35,994 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 163.6MB. Free memory is still 114.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 10:22:35,994 INFO L158 Benchmark]: CACSL2BoogieTranslator took 580.06ms. Allocated memory was 163.6MB in the beginning and 203.4MB in the end (delta: 39.8MB). Free memory was 90.6MB in the beginning and 170.9MB in the end (delta: -80.3MB). Peak memory consumption was 28.8MB. Max. memory is 16.1GB. [2024-11-10 10:22:35,994 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.22ms. Allocated memory is still 203.4MB. Free memory was 170.9MB in the beginning and 168.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 10:22:35,995 INFO L158 Benchmark]: Boogie Preprocessor took 41.69ms. Allocated memory is still 203.4MB. Free memory was 168.8MB in the beginning and 165.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 10:22:35,995 INFO L158 Benchmark]: IcfgBuilder took 717.38ms. Allocated memory is still 203.4MB. Free memory was 165.7MB in the beginning and 125.8MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2024-11-10 10:22:35,997 INFO L158 Benchmark]: TraceAbstraction took 6746.85ms. Allocated memory was 203.4MB in the beginning and 444.6MB in the end (delta: 241.2MB). Free memory was 124.8MB in the beginning and 161.8MB in the end (delta: -37.0MB). Peak memory consumption was 204.2MB. Max. memory is 16.1GB. [2024-11-10 10:22:35,997 INFO L158 Benchmark]: Witness Printer took 106.84ms. Allocated memory is still 444.6MB. Free memory was 160.7MB in the beginning and 156.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-10 10:22:35,998 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 163.6MB. Free memory is still 114.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 580.06ms. Allocated memory was 163.6MB in the beginning and 203.4MB in the end (delta: 39.8MB). Free memory was 90.6MB in the beginning and 170.9MB in the end (delta: -80.3MB). Peak memory consumption was 28.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.22ms. Allocated memory is still 203.4MB. Free memory was 170.9MB in the beginning and 168.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.69ms. Allocated memory is still 203.4MB. Free memory was 168.8MB in the beginning and 165.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 717.38ms. Allocated memory is still 203.4MB. Free memory was 165.7MB in the beginning and 125.8MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * TraceAbstraction took 6746.85ms. Allocated memory was 203.4MB in the beginning and 444.6MB in the end (delta: 241.2MB). Free memory was 124.8MB in the beginning and 161.8MB in the end (delta: -37.0MB). Peak memory consumption was 204.2MB. Max. memory is 16.1GB. * Witness Printer took 106.84ms. Allocated memory is still 444.6MB. Free memory was 160.7MB in the beginning and 156.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 107 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 6.6s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 435 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 419 mSDsluCounter, 35 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 20 mSDsCounter, 110 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1146 IncrementalHoareTripleChecker+Invalid, 1256 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 110 mSolverCounterUnsat, 15 mSDtfsCounter, 1146 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 49 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=607occurred in iteration=5, InterpolantAutomatonStates: 38, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 200 NumberOfCodeBlocks, 200 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 192 ConstructedInterpolants, 0 QuantifiedInterpolants, 1042 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-10 10:22:36,027 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE