./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_79-equ_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbabe86-02bc-44b9-9166-cb36358d54f1/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbabe86-02bc-44b9-9166-cb36358d54f1/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbabe86-02bc-44b9-9166-cb36358d54f1/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbabe86-02bc-44b9-9166-cb36358d54f1/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_79-equ_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbabe86-02bc-44b9-9166-cb36358d54f1/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbabe86-02bc-44b9-9166-cb36358d54f1/bin/uautomizer-verify-qhAvR1uOyd --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 5ac72ff2379990464c5f55660be1e08b12557a61aceeef8401296ef66be035fc --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 16:32:31,564 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 16:32:31,684 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbabe86-02bc-44b9-9166-cb36358d54f1/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 16:32:31,690 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 16:32:31,691 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 16:32:31,738 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 16:32:31,739 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 16:32:31,740 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 16:32:31,741 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 16:32:31,741 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 16:32:31,741 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 16:32:31,741 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 16:32:31,742 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 16:32:31,742 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 16:32:31,742 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 16:32:31,742 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 16:32:31,742 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 16:32:31,742 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 16:32:31,743 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 16:32:31,743 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 16:32:31,743 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 16:32:31,743 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 16:32:31,745 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 16:32:31,745 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 16:32:31,746 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 16:32:31,746 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 16:32:31,746 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 16:32:31,746 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 16:32:31,747 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 16:32:31,747 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 16:32:31,747 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 16:32:31,747 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 16:32:31,747 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:32:31,747 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 16:32:31,748 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 16:32:31,748 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 16:32:31,748 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 16:32:31,748 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 16:32:31,748 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 16:32:31,748 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 16:32:31,749 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 16:32:31,749 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 16:32:31,749 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbabe86-02bc-44b9-9166-cb36358d54f1/bin/uautomizer-verify-qhAvR1uOyd 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 -> 5ac72ff2379990464c5f55660be1e08b12557a61aceeef8401296ef66be035fc [2024-11-13 16:32:32,135 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 16:32:32,153 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 16:32:32,157 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 16:32:32,158 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 16:32:32,159 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 16:32:32,162 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbabe86-02bc-44b9-9166-cb36358d54f1/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/goblint-regression/28-race_reach_79-equ_racefree.i Unable to find full path for "g++" [2024-11-13 16:32:34,638 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 16:32:35,054 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 16:32:35,054 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbabe86-02bc-44b9-9166-cb36358d54f1/sv-benchmarks/c/goblint-regression/28-race_reach_79-equ_racefree.i [2024-11-13 16:32:35,077 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbabe86-02bc-44b9-9166-cb36358d54f1/bin/uautomizer-verify-qhAvR1uOyd/data/b68992946/b90c74a50b444545bfc15b37847c050a/FLAG42b544f84 [2024-11-13 16:32:35,097 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbabe86-02bc-44b9-9166-cb36358d54f1/bin/uautomizer-verify-qhAvR1uOyd/data/b68992946/b90c74a50b444545bfc15b37847c050a [2024-11-13 16:32:35,100 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 16:32:35,102 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 16:32:35,104 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 16:32:35,104 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 16:32:35,111 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 16:32:35,112 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:32:35" (1/1) ... [2024-11-13 16:32:35,113 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d5ab89b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:32:35, skipping insertion in model container [2024-11-13 16:32:35,114 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:32:35" (1/1) ... [2024-11-13 16:32:35,179 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 16:32:35,974 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbabe86-02bc-44b9-9166-cb36358d54f1/sv-benchmarks/c/goblint-regression/28-race_reach_79-equ_racefree.i[47038,47051] [2024-11-13 16:32:36,023 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:32:36,050 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 16:32:36,144 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbabe86-02bc-44b9-9166-cb36358d54f1/sv-benchmarks/c/goblint-regression/28-race_reach_79-equ_racefree.i[47038,47051] [2024-11-13 16:32:36,177 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:32:36,270 INFO L204 MainTranslator]: Completed translation [2024-11-13 16:32:36,271 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:32:36 WrapperNode [2024-11-13 16:32:36,272 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 16:32:36,275 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 16:32:36,276 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 16:32:36,276 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 16:32:36,284 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:32:36" (1/1) ... [2024-11-13 16:32:36,305 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:32:36" (1/1) ... [2024-11-13 16:32:36,335 INFO L138 Inliner]: procedures = 275, calls = 73, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 223 [2024-11-13 16:32:36,336 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 16:32:36,337 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 16:32:36,337 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 16:32:36,337 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 16:32:36,352 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:32:36" (1/1) ... [2024-11-13 16:32:36,352 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:32:36" (1/1) ... [2024-11-13 16:32:36,357 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:32:36" (1/1) ... [2024-11-13 16:32:36,376 INFO L175 MemorySlicer]: Split 44 memory accesses to 4 slices as follows [2, 8, 32, 2]. 73 percent of accesses are in the largest equivalence class. The 32 initializations are split as follows [2, 8, 22, 0]. The 5 writes are split as follows [0, 0, 4, 1]. [2024-11-13 16:32:36,377 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:32:36" (1/1) ... [2024-11-13 16:32:36,377 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:32:36" (1/1) ... [2024-11-13 16:32:36,389 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:32:36" (1/1) ... [2024-11-13 16:32:36,395 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:32:36" (1/1) ... [2024-11-13 16:32:36,398 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:32:36" (1/1) ... [2024-11-13 16:32:36,400 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:32:36" (1/1) ... [2024-11-13 16:32:36,404 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 16:32:36,405 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 16:32:36,405 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 16:32:36,405 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 16:32:36,407 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:32:36" (1/1) ... [2024-11-13 16:32:36,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:32:36,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbabe86-02bc-44b9-9166-cb36358d54f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:32:36,465 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbabe86-02bc-44b9-9166-cb36358d54f1/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 16:32:36,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbabe86-02bc-44b9-9166-cb36358d54f1/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 16:32:36,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 16:32:36,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 16:32:36,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-13 16:32:36,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-13 16:32:36,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-13 16:32:36,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-13 16:32:36,507 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-13 16:32:36,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-13 16:32:36,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-13 16:32:36,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-13 16:32:36,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-13 16:32:36,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-13 16:32:36,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-13 16:32:36,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-13 16:32:36,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-13 16:32:36,508 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-13 16:32:36,508 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 16:32:36,508 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-13 16:32:36,508 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-13 16:32:36,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 16:32:36,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-13 16:32:36,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-13 16:32:36,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-13 16:32:36,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 16:32:36,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 16:32:36,513 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-13 16:32:36,708 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 16:32:36,709 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 16:32:37,273 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 16:32:37,274 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 16:32:37,730 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 16:32:37,731 INFO L316 CfgBuilder]: Removed 22 assume(true) statements. [2024-11-13 16:32:37,731 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:32:37 BoogieIcfgContainer [2024-11-13 16:32:37,731 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 16:32:37,735 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 16:32:37,736 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 16:32:37,741 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 16:32:37,742 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 04:32:35" (1/3) ... [2024-11-13 16:32:37,742 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@593a3c9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:32:37, skipping insertion in model container [2024-11-13 16:32:37,743 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:32:36" (2/3) ... [2024-11-13 16:32:37,743 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@593a3c9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:32:37, skipping insertion in model container [2024-11-13 16:32:37,743 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:32:37" (3/3) ... [2024-11-13 16:32:37,745 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_79-equ_racefree.i [2024-11-13 16:32:37,766 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 16:32:37,770 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_79-equ_racefree.i that has 2 procedures, 68 locations, 1 initial locations, 12 loop locations, and 2 error locations. [2024-11-13 16:32:37,770 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 16:32:37,846 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-13 16:32:37,959 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 71 places, 94 transitions, 195 flow [2024-11-13 16:32:38,071 INFO L124 PetriNetUnfolderBase]: 38/139 cut-off events. [2024-11-13 16:32:38,074 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-13 16:32:38,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 144 conditions, 139 events. 38/139 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 539 event pairs, 0 based on Foata normal form. 0/95 useless extension candidates. Maximal degree in co-relation 87. Up to 8 conditions per place. [2024-11-13 16:32:38,084 INFO L82 GeneralOperation]: Start removeDead. Operand has 71 places, 94 transitions, 195 flow [2024-11-13 16:32:38,090 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 70 places, 91 transitions, 186 flow [2024-11-13 16:32:38,105 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 16:32:38,130 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;@1f4a2ab4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 16:32:38,130 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-13 16:32:38,150 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 16:32:38,150 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-13 16:32:38,150 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 16:32:38,151 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:32:38,151 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1] [2024-11-13 16:32:38,152 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-13 16:32:38,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:32:38,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1724979596, now seen corresponding path program 1 times [2024-11-13 16:32:38,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:32:38,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327318481] [2024-11-13 16:32:38,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:32:38,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:32:38,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:32:38,351 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:32:38,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:32:38,433 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 16:32:38,435 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 16:32:38,436 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 4 remaining) [2024-11-13 16:32:38,439 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2024-11-13 16:32:38,439 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2024-11-13 16:32:38,440 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2024-11-13 16:32:38,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 16:32:38,441 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-13 16:32:38,445 WARN L247 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-13 16:32:38,445 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-13 16:32:38,487 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-13 16:32:38,491 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 137 transitions, 290 flow [2024-11-13 16:32:38,555 INFO L124 PetriNetUnfolderBase]: 64/235 cut-off events. [2024-11-13 16:32:38,555 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-13 16:32:38,559 INFO L83 FinitePrefix]: Finished finitePrefix Result has 247 conditions, 235 events. 64/235 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1087 event pairs, 0 based on Foata normal form. 0/162 useless extension candidates. Maximal degree in co-relation 141. Up to 12 conditions per place. [2024-11-13 16:32:38,559 INFO L82 GeneralOperation]: Start removeDead. Operand has 103 places, 137 transitions, 290 flow [2024-11-13 16:32:38,563 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 103 places, 136 transitions, 288 flow [2024-11-13 16:32:38,565 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 16:32:38,565 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;@1f4a2ab4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 16:32:38,565 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-13 16:32:38,580 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 16:32:38,580 INFO L124 PetriNetUnfolderBase]: 6/53 cut-off events. [2024-11-13 16:32:38,580 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-13 16:32:38,580 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:32:38,580 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1] [2024-11-13 16:32:38,581 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-13 16:32:38,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:32:38,581 INFO L85 PathProgramCache]: Analyzing trace with hash 2114321763, now seen corresponding path program 1 times [2024-11-13 16:32:38,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:32:38,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712854958] [2024-11-13 16:32:38,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:32:38,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:32:38,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:32:38,720 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:32:38,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:32:38,834 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 16:32:38,838 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 16:32:38,839 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 5 remaining) [2024-11-13 16:32:38,839 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2024-11-13 16:32:38,839 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2024-11-13 16:32:38,839 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2024-11-13 16:32:38,839 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2024-11-13 16:32:38,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 16:32:38,840 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-13 16:32:38,840 WARN L247 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-13 16:32:38,840 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-13 16:32:38,919 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-13 16:32:38,926 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 135 places, 180 transitions, 387 flow [2024-11-13 16:32:39,038 INFO L124 PetriNetUnfolderBase]: 93/344 cut-off events. [2024-11-13 16:32:39,038 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-13 16:32:39,052 INFO L83 FinitePrefix]: Finished finitePrefix Result has 369 conditions, 344 events. 93/344 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1728 event pairs, 1 based on Foata normal form. 0/240 useless extension candidates. Maximal degree in co-relation 244. Up to 16 conditions per place. [2024-11-13 16:32:39,053 INFO L82 GeneralOperation]: Start removeDead. Operand has 135 places, 180 transitions, 387 flow [2024-11-13 16:32:39,061 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 135 places, 179 transitions, 385 flow [2024-11-13 16:32:39,064 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 16:32:39,067 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;@1f4a2ab4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 16:32:39,067 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-13 16:32:39,086 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 16:32:39,086 INFO L124 PetriNetUnfolderBase]: 12/84 cut-off events. [2024-11-13 16:32:39,087 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-13 16:32:39,087 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:32:39,087 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:32:39,088 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-13 16:32:39,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:32:39,089 INFO L85 PathProgramCache]: Analyzing trace with hash 1100566920, now seen corresponding path program 1 times [2024-11-13 16:32:39,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:32:39,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285677020] [2024-11-13 16:32:39,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:32:39,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:32:39,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:39,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:32:39,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:32:39,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285677020] [2024-11-13 16:32:39,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285677020] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:32:39,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:32:39,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 16:32:39,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967629584] [2024-11-13 16:32:39,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:32:39,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:32:39,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:32:39,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:32:39,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:32:39,350 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 180 [2024-11-13 16:32:39,353 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 179 transitions, 385 flow. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 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) [2024-11-13 16:32:39,354 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:32:39,354 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 180 [2024-11-13 16:32:39,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand