./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/parallel-barrier-loop.wvr.c --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/weaver/parallel-barrier-loop.wvr.c -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 a107795e01eed1ee79fba30cb5022ee32b5d5a3711e8a094ab0bb165fd3efa7a --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 10:29:20,356 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 10:29:20,427 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-10 10:29:20,432 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 10:29:20,434 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 10:29:20,462 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 10:29:20,465 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 10:29:20,465 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 10:29:20,466 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 10:29:20,466 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 10:29:20,467 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 10:29:20,467 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 10:29:20,468 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 10:29:20,469 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 10:29:20,470 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 10:29:20,470 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 10:29:20,470 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 10:29:20,471 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 10:29:20,471 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 10:29:20,471 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 10:29:20,471 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 10:29:20,475 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 10:29:20,476 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 10:29:20,476 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 10:29:20,476 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 10:29:20,476 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 10:29:20,477 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 10:29:20,477 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 10:29:20,477 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 10:29:20,477 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 10:29:20,478 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 10:29:20,478 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 10:29:20,478 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 10:29:20,478 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 10:29:20,478 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 10:29:20,479 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 10:29:20,479 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 10:29:20,479 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 10:29:20,479 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 10:29:20,480 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 10:29:20,480 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 10:29:20,481 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 10:29:20,482 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a107795e01eed1ee79fba30cb5022ee32b5d5a3711e8a094ab0bb165fd3efa7a [2024-11-10 10:29:20,788 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 10:29:20,812 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 10:29:20,816 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 10:29:20,817 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 10:29:20,817 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 10:29:20,818 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-barrier-loop.wvr.c [2024-11-10 10:29:22,256 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 10:29:22,469 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 10:29:22,469 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-barrier-loop.wvr.c [2024-11-10 10:29:22,477 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30647ac0e/e4e22f437c1642b88d8d1db27e4a5e64/FLAG6ba265c40 [2024-11-10 10:29:22,494 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30647ac0e/e4e22f437c1642b88d8d1db27e4a5e64 [2024-11-10 10:29:22,496 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 10:29:22,497 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 10:29:22,499 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 10:29:22,499 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 10:29:22,505 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 10:29:22,506 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:29:22" (1/1) ... [2024-11-10 10:29:22,507 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ba6dd6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:29:22, skipping insertion in model container [2024-11-10 10:29:22,507 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:29:22" (1/1) ... [2024-11-10 10:29:22,536 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 10:29:22,733 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/weaver/parallel-barrier-loop.wvr.c[3922,3935] [2024-11-10 10:29:22,741 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 10:29:22,750 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 10:29:22,782 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/weaver/parallel-barrier-loop.wvr.c[3922,3935] [2024-11-10 10:29:22,783 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 10:29:22,800 INFO L204 MainTranslator]: Completed translation [2024-11-10 10:29:22,801 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:29:22 WrapperNode [2024-11-10 10:29:22,801 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 10:29:22,803 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 10:29:22,803 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 10:29:22,803 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 10:29:22,810 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:29:22" (1/1) ... [2024-11-10 10:29:22,818 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:29:22" (1/1) ... [2024-11-10 10:29:22,844 INFO L138 Inliner]: procedures = 22, calls = 22, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 223 [2024-11-10 10:29:22,845 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 10:29:22,846 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 10:29:22,846 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 10:29:22,846 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 10:29:22,856 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:29:22" (1/1) ... [2024-11-10 10:29:22,856 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:29:22" (1/1) ... [2024-11-10 10:29:22,859 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:29:22" (1/1) ... [2024-11-10 10:29:22,886 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-10 10:29:22,886 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:29:22" (1/1) ... [2024-11-10 10:29:22,887 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:29:22" (1/1) ... [2024-11-10 10:29:22,898 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:29:22" (1/1) ... [2024-11-10 10:29:22,899 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:29:22" (1/1) ... [2024-11-10 10:29:22,901 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:29:22" (1/1) ... [2024-11-10 10:29:22,902 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:29:22" (1/1) ... [2024-11-10 10:29:22,906 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 10:29:22,911 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 10:29:22,911 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 10:29:22,911 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 10:29:22,912 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:29:22" (1/1) ... [2024-11-10 10:29:22,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 10:29:22,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 10:29:22,959 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 10:29:22,962 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 10:29:23,017 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 10:29:23,018 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-10 10:29:23,018 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-10 10:29:23,018 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-10 10:29:23,018 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-10 10:29:23,018 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-10 10:29:23,018 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-10 10:29:23,019 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-11-10 10:29:23,020 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-11-10 10:29:23,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 10:29:23,021 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2024-11-10 10:29:23,021 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2024-11-10 10:29:23,021 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2024-11-10 10:29:23,021 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2024-11-10 10:29:23,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 10:29:23,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 10:29:23,023 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 10:29:23,185 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 10:29:23,193 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 10:29:23,624 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 10:29:23,625 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 10:29:23,816 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 10:29:23,816 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 10:29:23,817 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:29:23 BoogieIcfgContainer [2024-11-10 10:29:23,817 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 10:29:23,821 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 10:29:23,821 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 10:29:23,824 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 10:29:23,825 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 10:29:22" (1/3) ... [2024-11-10 10:29:23,825 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39d91175 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:29:23, skipping insertion in model container [2024-11-10 10:29:23,826 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:29:22" (2/3) ... [2024-11-10 10:29:23,826 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39d91175 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:29:23, skipping insertion in model container [2024-11-10 10:29:23,826 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:29:23" (3/3) ... [2024-11-10 10:29:23,827 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-barrier-loop.wvr.c [2024-11-10 10:29:23,841 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 10:29:23,842 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-10 10:29:23,842 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 10:29:23,923 INFO L143 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2024-11-10 10:29:23,970 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 119 places, 112 transitions, 290 flow [2024-11-10 10:29:24,027 INFO L124 PetriNetUnfolderBase]: 12/100 cut-off events. [2024-11-10 10:29:24,028 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-10 10:29:24,037 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129 conditions, 100 events. 12/100 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 238 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 95. Up to 3 conditions per place. [2024-11-10 10:29:24,037 INFO L82 GeneralOperation]: Start removeDead. Operand has 119 places, 112 transitions, 290 flow [2024-11-10 10:29:24,042 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 106 places, 99 transitions, 246 flow [2024-11-10 10:29:24,052 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 10:29:24,058 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;@618c424e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 10:29:24,059 INFO L334 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-11-10 10:29:24,093 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 10:29:24,093 INFO L124 PetriNetUnfolderBase]: 12/98 cut-off events. [2024-11-10 10:29:24,093 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-10 10:29:24,094 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:29:24,094 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, 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 10:29:24,095 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2024-11-10 10:29:24,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:29:24,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1667971580, now seen corresponding path program 1 times [2024-11-10 10:29:24,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:29:24,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966910134] [2024-11-10 10:29:24,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:29:24,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:29:24,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:29:24,398 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 10:29:24,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:29:24,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966910134] [2024-11-10 10:29:24,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966910134] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:29:24,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:29:24,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 10:29:24,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092494065] [2024-11-10 10:29:24,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:29:24,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 10:29:24,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:29:24,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 10:29:24,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 10:29:24,462 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 116 [2024-11-10 10:29:24,464 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 99 transitions, 246 flow. Second operand has 2 states, 2 states have (on average 38.0) internal successors, (76), 2 states have internal predecessors, (76), 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 10:29:24,464 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:29:24,464 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 116 [2024-11-10 10:29:24,465 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand