./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-barrier-loop.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/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 a690a19e2d41bbc14b3960c21812e80405a4291ef4154c7125f66fa1ebbf9c8f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 12:29:46,641 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 12:29:46,722 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 12:29:46,729 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 12:29:46,733 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 12:29:46,763 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 12:29:46,763 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 12:29:46,764 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 12:29:46,765 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 12:29:46,766 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 12:29:46,766 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 12:29:46,767 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 12:29:46,767 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 12:29:46,768 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 12:29:46,768 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 12:29:46,770 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 12:29:46,770 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 12:29:46,771 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 12:29:46,771 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 12:29:46,771 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 12:29:46,772 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 12:29:46,775 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 12:29:46,775 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 12:29:46,776 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 12:29:46,776 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 12:29:46,776 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 12:29:46,777 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 12:29:46,777 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 12:29:46,777 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 12:29:46,778 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 12:29:46,778 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 12:29:46,778 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 12:29:46,779 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 12:29:46,779 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 12:29:46,780 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 12:29:46,780 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 12:29:46,781 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 12:29:46,781 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 12:29:46,781 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 12:29:46,781 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 12:29:46,781 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 12:29:46,783 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 12:29:46,783 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a690a19e2d41bbc14b3960c21812e80405a4291ef4154c7125f66fa1ebbf9c8f [2024-10-24 12:29:47,047 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 12:29:47,077 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 12:29:47,080 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 12:29:47,082 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 12:29:47,082 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 12:29:47,083 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-barrier-loop.wvr.c [2024-10-24 12:29:48,628 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 12:29:48,851 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 12:29:48,853 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-barrier-loop.wvr.c [2024-10-24 12:29:48,863 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/165fd8402/68c152ee7cb24a908549d22950ffac5c/FLAG44c3dd0f0 [2024-10-24 12:29:48,877 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/165fd8402/68c152ee7cb24a908549d22950ffac5c [2024-10-24 12:29:48,881 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 12:29:48,884 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 12:29:48,887 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 12:29:48,888 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 12:29:48,895 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 12:29:48,896 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:29:48" (1/1) ... [2024-10-24 12:29:48,897 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f1156cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:29:48, skipping insertion in model container [2024-10-24 12:29:48,897 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:29:48" (1/1) ... [2024-10-24 12:29:48,926 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 12:29:49,144 WARN L248 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[6016,6029] [2024-10-24 12:29:49,150 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 12:29:49,160 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 12:29:49,187 WARN L248 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[6016,6029] [2024-10-24 12:29:49,188 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 12:29:49,212 INFO L204 MainTranslator]: Completed translation [2024-10-24 12:29:49,213 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:29:49 WrapperNode [2024-10-24 12:29:49,213 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 12:29:49,214 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 12:29:49,215 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 12:29:49,215 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 12:29:49,222 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:29:49" (1/1) ... [2024-10-24 12:29:49,230 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:29:49" (1/1) ... [2024-10-24 12:29:49,258 INFO L138 Inliner]: procedures = 24, calls = 90, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 267 [2024-10-24 12:29:49,259 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 12:29:49,260 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 12:29:49,260 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 12:29:49,260 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 12:29:49,275 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:29:49" (1/1) ... [2024-10-24 12:29:49,276 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:29:49" (1/1) ... [2024-10-24 12:29:49,283 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:29:49" (1/1) ... [2024-10-24 12:29:49,321 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]. [2024-10-24 12:29:49,325 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:29:49" (1/1) ... [2024-10-24 12:29:49,326 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:29:49" (1/1) ... [2024-10-24 12:29:49,355 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:29:49" (1/1) ... [2024-10-24 12:29:49,360 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:29:49" (1/1) ... [2024-10-24 12:29:49,365 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:29:49" (1/1) ... [2024-10-24 12:29:49,366 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:29:49" (1/1) ... [2024-10-24 12:29:49,369 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 12:29:49,371 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 12:29:49,371 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 12:29:49,371 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 12:29:49,372 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:29:49" (1/1) ... [2024-10-24 12:29:49,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 12:29:49,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 12:29:49,400 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) [2024-10-24 12:29:49,414 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 [2024-10-24 12:29:49,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 12:29:49,458 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-24 12:29:49,458 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-24 12:29:49,459 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-24 12:29:49,459 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-24 12:29:49,459 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-24 12:29:49,459 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-24 12:29:49,459 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-10-24 12:29:49,459 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-10-24 12:29:49,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 12:29:49,460 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2024-10-24 12:29:49,460 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2024-10-24 12:29:49,460 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2024-10-24 12:29:49,460 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2024-10-24 12:29:49,460 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-24 12:29:49,460 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-24 12:29:49,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 12:29:49,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 12:29:49,462 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-24 12:29:49,566 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 12:29:49,568 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 12:29:49,939 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-24 12:29:49,940 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 12:29:50,206 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 12:29:50,207 INFO L314 CfgBuilder]: Removed 4 assume(true) statements. [2024-10-24 12:29:50,207 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:29:50 BoogieIcfgContainer [2024-10-24 12:29:50,207 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 12:29:50,209 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 12:29:50,210 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 12:29:50,215 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 12:29:50,215 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 12:29:48" (1/3) ... [2024-10-24 12:29:50,216 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fa983d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:29:50, skipping insertion in model container [2024-10-24 12:29:50,217 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:29:49" (2/3) ... [2024-10-24 12:29:50,217 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fa983d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:29:50, skipping insertion in model container [2024-10-24 12:29:50,217 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:29:50" (3/3) ... [2024-10-24 12:29:50,220 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-barrier-loop.wvr.c [2024-10-24 12:29:50,240 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 12:29:50,241 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 12:29:50,241 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-24 12:29:50,338 INFO L143 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2024-10-24 12:29:50,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 109 places, 102 transitions, 270 flow [2024-10-24 12:29:50,430 INFO L124 PetriNetUnfolderBase]: 12/90 cut-off events. [2024-10-24 12:29:50,430 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-24 12:29:50,443 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119 conditions, 90 events. 12/90 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 273 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 101. Up to 3 conditions per place. [2024-10-24 12:29:50,444 INFO L82 GeneralOperation]: Start removeDead. Operand has 109 places, 102 transitions, 270 flow [2024-10-24 12:29:50,448 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 96 places, 89 transitions, 226 flow [2024-10-24 12:29:50,461 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 12:29:50,468 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;@5f94d0bf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 12:29:50,469 INFO L334 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-10-24 12:29:50,494 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 12:29:50,496 INFO L124 PetriNetUnfolderBase]: 12/88 cut-off events. [2024-10-24 12:29:50,497 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-24 12:29:50,497 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 12:29:50,497 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] [2024-10-24 12:29:50,498 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2024-10-24 12:29:50,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:29:50,503 INFO L85 PathProgramCache]: Analyzing trace with hash 161547759, now seen corresponding path program 1 times [2024-10-24 12:29:50,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:29:50,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550063736] [2024-10-24 12:29:50,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:29:50,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:29:50,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:29:50,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 12:29:50,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:29:50,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550063736] [2024-10-24 12:29:50,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550063736] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:29:50,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:29:50,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 12:29:50,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865875391] [2024-10-24 12:29:50,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:29:50,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 12:29:50,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:29:50,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 12:29:50,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 12:29:50,938 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 106 [2024-10-24 12:29:50,940 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 89 transitions, 226 flow. Second operand has 2 states, 2 states have (on average 53.0) internal successors, (106), 2 states have internal predecessors, (106), 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) [2024-10-24 12:29:50,940 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 12:29:50,940 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 106 [2024-10-24 12:29:50,941 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 12:30:06,169 INFO L124 PetriNetUnfolderBase]: 134682/195543 cut-off events. [2024-10-24 12:30:06,169 INFO L125 PetriNetUnfolderBase]: For 14343/14343 co-relation queries the response was YES. [2024-10-24 12:30:06,814 INFO L83 FinitePrefix]: Finished finitePrefix Result has 378041 conditions, 195543 events. 134682/195543 cut-off events. For 14343/14343 co-relation queries the response was YES. Maximal size of possible extension queue 6330. Compared 1588187 event pairs, 115089 based on Foata normal form. 0/167504 useless extension candidates. Maximal degree in co-relation 377012. Up to 166099 conditions per place. [2024-10-24 12:30:07,696 INFO L140 encePairwiseOnDemand]: 102/106 looper letters, 56 selfloop transitions, 0 changer transitions 0/85 dead transitions. [2024-10-24 12:30:07,697 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 85 transitions, 330 flow [2024-10-24 12:30:07,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 12:30:07,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-24 12:30:07,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 130 transitions. [2024-10-24 12:30:07,709 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6132075471698113 [2024-10-24 12:30:07,711 INFO L175 Difference]: Start difference. First operand has 96 places, 89 transitions, 226 flow. Second operand 2 states and 130 transitions. [2024-10-24 12:30:07,712 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 85 transitions, 330 flow [2024-10-24 12:30:08,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 85 transitions, 298 flow, removed 0 selfloop flow, removed 12 redundant places. [2024-10-24 12:30:08,106 INFO L231 Difference]: Finished difference. Result has 85 places, 85 transitions, 186 flow [2024-10-24 12:30:08,112 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=186, PETRI_PLACES=85, PETRI_TRANSITIONS=85} [2024-10-24 12:30:08,119 INFO L277 CegarLoopForPetriNet]: 96 programPoint places, -11 predicate places. [2024-10-24 12:30:08,120 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 85 transitions, 186 flow [2024-10-24 12:30:08,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 53.0) internal successors, (106), 2 states have internal predecessors, (106), 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) [2024-10-24 12:30:08,121 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 12:30:08,121 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] [2024-10-24 12:30:08,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 12:30:08,122 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2024-10-24 12:30:08,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:30:08,123 INFO L85 PathProgramCache]: Analyzing trace with hash 1259936637, now seen corresponding path program 1 times [2024-10-24 12:30:08,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:30:08,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950047749] [2024-10-24 12:30:08,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:30:08,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:30:08,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:30:08,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 12:30:08,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:30:08,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950047749] [2024-10-24 12:30:08,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950047749] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:30:08,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:30:08,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 12:30:08,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327719048] [2024-10-24 12:30:08,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:30:08,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 12:30:08,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:30:08,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 12:30:08,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 12:30:08,542 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 106 [2024-10-24 12:30:08,543 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 85 transitions, 186 flow. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 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) [2024-10-24 12:30:08,544 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 12:30:08,545 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 106 [2024-10-24 12:30:08,545 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand