./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_27-funptr_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc 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/28-race_reach_27-funptr_racing.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 ce37da4bed964b4727d03a98278bc58de76d7006f2d65a8a42fb0f55b5b34a9c --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 01:41:11,537 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 01:41:11,610 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 01:41:11,617 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 01:41:11,617 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 01:41:11,649 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 01:41:11,650 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 01:41:11,650 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 01:41:11,651 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 01:41:11,651 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 01:41:11,651 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 01:41:11,652 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 01:41:11,653 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 01:41:11,654 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 01:41:11,655 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 01:41:11,657 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 01:41:11,657 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 01:41:11,658 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 01:41:11,658 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 01:41:11,658 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 01:41:11,658 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 01:41:11,659 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 01:41:11,659 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 01:41:11,659 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 01:41:11,660 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 01:41:11,660 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 01:41:11,660 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 01:41:11,660 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 01:41:11,661 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 01:41:11,661 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 01:41:11,661 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 01:41:11,661 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 01:41:11,662 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 01:41:11,662 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 01:41:11,666 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 01:41:11,666 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 01:41:11,666 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 01:41:11,666 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 01:41:11,666 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 01:41:11,667 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 01:41:11,667 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 01:41:11,668 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 01:41:11,668 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce37da4bed964b4727d03a98278bc58de76d7006f2d65a8a42fb0f55b5b34a9c [2024-11-19 01:41:11,919 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 01:41:11,946 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 01:41:11,951 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 01:41:11,952 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 01:41:11,954 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 01:41:11,955 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_27-funptr_racing.i [2024-11-19 01:41:13,370 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 01:41:13,617 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 01:41:13,618 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_27-funptr_racing.i [2024-11-19 01:41:13,638 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9419783d2/95696026cf754380a3fd3071fdadced0/FLAG98f699dde [2024-11-19 01:41:13,654 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9419783d2/95696026cf754380a3fd3071fdadced0 [2024-11-19 01:41:13,657 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 01:41:13,659 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 01:41:13,660 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 01:41:13,663 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 01:41:13,669 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 01:41:13,670 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:41:13" (1/1) ... [2024-11-19 01:41:13,671 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28ac9f84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:41:13, skipping insertion in model container [2024-11-19 01:41:13,671 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:41:13" (1/1) ... [2024-11-19 01:41:13,726 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 01:41:14,185 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/28-race_reach_27-funptr_racing.i[39732,39745] [2024-11-19 01:41:14,222 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 01:41:14,256 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 01:41:14,313 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/28-race_reach_27-funptr_racing.i[39732,39745] [2024-11-19 01:41:14,329 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 01:41:14,400 INFO L204 MainTranslator]: Completed translation [2024-11-19 01:41:14,401 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:41:14 WrapperNode [2024-11-19 01:41:14,401 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 01:41:14,402 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 01:41:14,403 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 01:41:14,403 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 01:41:14,410 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:41:14" (1/1) ... [2024-11-19 01:41:14,433 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:41:14" (1/1) ... [2024-11-19 01:41:14,471 INFO L138 Inliner]: procedures = 252, calls = 52, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 173 [2024-11-19 01:41:14,474 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 01:41:14,475 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 01:41:14,475 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 01:41:14,475 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 01:41:14,487 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:41:14" (1/1) ... [2024-11-19 01:41:14,488 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:41:14" (1/1) ... [2024-11-19 01:41:14,493 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:41:14" (1/1) ... [2024-11-19 01:41:14,525 INFO L175 MemorySlicer]: Split 19 memory accesses to 5 slices as follows [2, 5, 5, 2, 5]. 26 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 5, 5, 0, 5]. The 1 writes are split as follows [0, 0, 0, 1, 0]. [2024-11-19 01:41:14,528 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:41:14" (1/1) ... [2024-11-19 01:41:14,528 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:41:14" (1/1) ... [2024-11-19 01:41:14,538 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:41:14" (1/1) ... [2024-11-19 01:41:14,542 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:41:14" (1/1) ... [2024-11-19 01:41:14,548 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:41:14" (1/1) ... [2024-11-19 01:41:14,554 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:41:14" (1/1) ... [2024-11-19 01:41:14,557 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 01:41:14,561 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 01:41:14,561 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 01:41:14,561 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 01:41:14,562 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:41:14" (1/1) ... [2024-11-19 01:41:14,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 01:41:14,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:41:14,605 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) [2024-11-19 01:41:14,609 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 [2024-11-19 01:41:14,659 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-19 01:41:14,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-19 01:41:14,660 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-19 01:41:14,661 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 01:41:14,661 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 01:41:14,661 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-19 01:41:14,661 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-19 01:41:14,662 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-19 01:41:14,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 01:41:14,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 01:41:14,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-19 01:41:14,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-19 01:41:14,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-19 01:41:14,662 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-19 01:41:14,662 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 01:41:14,663 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-19 01:41:14,663 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-19 01:41:14,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 01:41:14,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 01:41:14,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 01:41:14,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-19 01:41:14,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-19 01:41:14,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 01:41:14,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 01:41:14,666 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 01:41:14,805 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 01:41:14,808 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 01:41:15,146 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 01:41:15,147 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 01:41:15,345 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 01:41:15,345 INFO L316 CfgBuilder]: Removed 16 assume(true) statements. [2024-11-19 01:41:15,346 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:41:15 BoogieIcfgContainer [2024-11-19 01:41:15,346 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 01:41:15,348 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 01:41:15,348 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 01:41:15,353 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 01:41:15,353 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:41:13" (1/3) ... [2024-11-19 01:41:15,354 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25c7f248 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:41:15, skipping insertion in model container [2024-11-19 01:41:15,354 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:41:14" (2/3) ... [2024-11-19 01:41:15,355 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25c7f248 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:41:15, skipping insertion in model container [2024-11-19 01:41:15,355 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:41:15" (3/3) ... [2024-11-19 01:41:15,356 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_27-funptr_racing.i [2024-11-19 01:41:15,374 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 01:41:15,374 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 01:41:15,375 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 01:41:15,429 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-19 01:41:15,475 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 65 places, 79 transitions, 165 flow [2024-11-19 01:41:15,550 INFO L124 PetriNetUnfolderBase]: 20/103 cut-off events. [2024-11-19 01:41:15,551 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-19 01:41:15,558 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 103 events. 20/103 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 358 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 74. Up to 4 conditions per place. [2024-11-19 01:41:15,559 INFO L82 GeneralOperation]: Start removeDead. Operand has 65 places, 79 transitions, 165 flow [2024-11-19 01:41:15,563 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 64 places, 77 transitions, 158 flow [2024-11-19 01:41:15,584 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 01:41:15,618 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;@2987160a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 01:41:15,620 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-19 01:41:15,627 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 01:41:15,629 INFO L124 PetriNetUnfolderBase]: 0/12 cut-off events. [2024-11-19 01:41:15,629 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 01:41:15,629 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:41:15,630 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-11-19 01:41:15,631 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-19 01:41:15,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:41:15,638 INFO L85 PathProgramCache]: Analyzing trace with hash 492277927, now seen corresponding path program 1 times [2024-11-19 01:41:15,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:41:15,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889076820] [2024-11-19 01:41:15,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:41:15,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:41:15,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 01:41:15,795 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 01:41:15,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 01:41:15,874 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 01:41:15,877 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 01:41:15,879 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2024-11-19 01:41:15,881 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-11-19 01:41:15,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 01:41:15,882 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-19 01:41:15,886 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 01:41:15,886 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-19 01:41:15,924 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-19 01:41:15,930 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 104 places, 130 transitions, 276 flow [2024-11-19 01:41:15,977 INFO L124 PetriNetUnfolderBase]: 38/185 cut-off events. [2024-11-19 01:41:15,978 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-19 01:41:15,982 INFO L83 FinitePrefix]: Finished finitePrefix Result has 197 conditions, 185 events. 38/185 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 818 event pairs, 0 based on Foata normal form. 0/140 useless extension candidates. Maximal degree in co-relation 128. Up to 6 conditions per place. [2024-11-19 01:41:15,983 INFO L82 GeneralOperation]: Start removeDead. Operand has 104 places, 130 transitions, 276 flow [2024-11-19 01:41:15,986 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 104 places, 130 transitions, 276 flow [2024-11-19 01:41:15,988 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 01:41:15,989 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;@2987160a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 01:41:15,989 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-19 01:41:15,999 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 01:41:16,001 INFO L124 PetriNetUnfolderBase]: 0/30 cut-off events. [2024-11-19 01:41:16,002 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-19 01:41:16,002 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:41:16,002 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1] [2024-11-19 01:41:16,003 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-19 01:41:16,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:41:16,004 INFO L85 PathProgramCache]: Analyzing trace with hash 2121738190, now seen corresponding path program 1 times [2024-11-19 01:41:16,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:41:16,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329351685] [2024-11-19 01:41:16,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:41:16,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:41:16,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 01:41:16,064 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 01:41:16,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 01:41:16,114 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 01:41:16,114 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 01:41:16,114 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2024-11-19 01:41:16,114 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-11-19 01:41:16,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 01:41:16,115 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-19 01:41:16,115 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 01:41:16,116 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-19 01:41:16,159 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-19 01:41:16,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 143 places, 181 transitions, 389 flow [2024-11-19 01:41:16,223 INFO L124 PetriNetUnfolderBase]: 59/278 cut-off events. [2024-11-19 01:41:16,226 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-19 01:41:16,232 INFO L83 FinitePrefix]: Finished finitePrefix Result has 303 conditions, 278 events. 59/278 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1343 event pairs, 1 based on Foata normal form. 0/211 useless extension candidates. Maximal degree in co-relation 196. Up to 12 conditions per place. [2024-11-19 01:41:16,232 INFO L82 GeneralOperation]: Start removeDead. Operand has 143 places, 181 transitions, 389 flow [2024-11-19 01:41:16,238 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 143 places, 181 transitions, 389 flow [2024-11-19 01:41:16,239 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 01:41:16,240 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;@2987160a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 01:41:16,240 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-19 01:41:16,257 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 01:41:16,257 INFO L124 PetriNetUnfolderBase]: 3/68 cut-off events. [2024-11-19 01:41:16,257 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-19 01:41:16,257 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:41:16,258 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 1, 1, 1, 1, 1] [2024-11-19 01:41:16,259 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-19 01:41:16,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:41:16,259 INFO L85 PathProgramCache]: Analyzing trace with hash 692186950, now seen corresponding path program 1 times [2024-11-19 01:41:16,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:41:16,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062683929] [2024-11-19 01:41:16,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:41:16,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:41:16,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 01:41:16,310 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 01:41:16,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 01:41:16,372 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 01:41:16,373 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 01:41:16,373 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2024-11-19 01:41:16,373 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-11-19 01:41:16,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 01:41:16,374 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-19 01:41:16,375 WARN L244 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 01:41:16,375 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-11-19 01:41:16,426 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-19 01:41:16,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 182 places, 232 transitions, 504 flow [2024-11-19 01:41:16,530 INFO L124 PetriNetUnfolderBase]: 88/395 cut-off events. [2024-11-19 01:41:16,531 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2024-11-19 01:41:16,542 INFO L83 FinitePrefix]: Finished finitePrefix Result has 446 conditions, 395 events. 88/395 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 2015 event pairs, 6 based on Foata normal form. 0/302 useless extension candidates. Maximal degree in co-relation 302. Up to 32 conditions per place. [2024-11-19 01:41:16,543 INFO L82 GeneralOperation]: Start removeDead. Operand has 182 places, 232 transitions, 504 flow [2024-11-19 01:41:16,550 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 182 places, 232 transitions, 504 flow [2024-11-19 01:41:16,553 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 01:41:16,555 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;@2987160a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 01:41:16,556 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-19 01:41:16,565 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 01:41:16,565 INFO L124 PetriNetUnfolderBase]: 3/77 cut-off events. [2024-11-19 01:41:16,565 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-11-19 01:41:16,568 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:41:16,569 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:41:16,569 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-19 01:41:16,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:41:16,570 INFO L85 PathProgramCache]: Analyzing trace with hash -2075073108, now seen corresponding path program 1 times [2024-11-19 01:41:16,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:41:16,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912067396] [2024-11-19 01:41:16,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:41:16,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:41:16,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:41:16,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:41:16,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:41:16,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912067396] [2024-11-19 01:41:16,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912067396] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:41:16,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:41:16,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 01:41:16,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499540823] [2024-11-19 01:41:16,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:41:16,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 01:41:16,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:41:16,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 01:41:16,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 01:41:16,744 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 232 [2024-11-19 01:41:16,746 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 232 transitions, 504 flow. Second operand has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 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) [2024-11-19 01:41:16,747 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:41:16,747 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 232 [2024-11-19 01:41:16,748 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand