./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_78-equ_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8c1a22-e131-43c0-8918-6e74a1fa29a3/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8c1a22-e131-43c0-8918-6e74a1fa29a3/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8c1a22-e131-43c0-8918-6e74a1fa29a3/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8c1a22-e131-43c0-8918-6e74a1fa29a3/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_78-equ_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8c1a22-e131-43c0-8918-6e74a1fa29a3/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8c1a22-e131-43c0-8918-6e74a1fa29a3/bin/uautomizer-verify-4GaUIPS5ZU --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 246cd07a930f0cb8d777c2eae74f25d04e3267c275b813f0c0f5232c23299340 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 21:56:10,974 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 21:56:11,074 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8c1a22-e131-43c0-8918-6e74a1fa29a3/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-31 21:56:11,080 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 21:56:11,080 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 21:56:11,124 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 21:56:11,124 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 21:56:11,125 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 21:56:11,125 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 21:56:11,126 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 21:56:11,126 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 21:56:11,127 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 21:56:11,127 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 21:56:11,128 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 21:56:11,128 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 21:56:11,129 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 21:56:11,129 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 21:56:11,129 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 21:56:11,130 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 21:56:11,130 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 21:56:11,131 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 21:56:11,131 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 21:56:11,132 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 21:56:11,132 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 21:56:11,132 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 21:56:11,133 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 21:56:11,133 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 21:56:11,133 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 21:56:11,134 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 21:56:11,134 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 21:56:11,134 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 21:56:11,135 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 21:56:11,135 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:56:11,135 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 21:56:11,136 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 21:56:11,136 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 21:56:11,136 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 21:56:11,137 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 21:56:11,137 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 21:56:11,137 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 21:56:11,137 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 21:56:11,138 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 21:56:11,138 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8c1a22-e131-43c0-8918-6e74a1fa29a3/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8c1a22-e131-43c0-8918-6e74a1fa29a3/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 246cd07a930f0cb8d777c2eae74f25d04e3267c275b813f0c0f5232c23299340 [2024-10-31 21:56:11,486 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 21:56:11,525 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 21:56:11,528 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 21:56:11,530 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 21:56:11,531 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 21:56:11,532 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8c1a22-e131-43c0-8918-6e74a1fa29a3/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/goblint-regression/28-race_reach_78-equ_racing.i Unable to find full path for "g++" [2024-10-31 21:56:13,624 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 21:56:13,921 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 21:56:13,923 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8c1a22-e131-43c0-8918-6e74a1fa29a3/sv-benchmarks/c/goblint-regression/28-race_reach_78-equ_racing.i [2024-10-31 21:56:13,949 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8c1a22-e131-43c0-8918-6e74a1fa29a3/bin/uautomizer-verify-4GaUIPS5ZU/data/dc20accdb/a1b6d7aae10e4ea2a4c84e348e0f4144/FLAG9112ff173 [2024-10-31 21:56:13,970 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8c1a22-e131-43c0-8918-6e74a1fa29a3/bin/uautomizer-verify-4GaUIPS5ZU/data/dc20accdb/a1b6d7aae10e4ea2a4c84e348e0f4144 [2024-10-31 21:56:13,975 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 21:56:13,977 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 21:56:13,980 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 21:56:13,981 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 21:56:13,987 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 21:56:13,988 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:56:13" (1/1) ... [2024-10-31 21:56:13,989 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59a3f1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:13, skipping insertion in model container [2024-10-31 21:56:13,991 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:56:13" (1/1) ... [2024-10-31 21:56:14,092 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 21:56:14,647 WARN L251 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_dc8c1a22-e131-43c0-8918-6e74a1fa29a3/sv-benchmarks/c/goblint-regression/28-race_reach_78-equ_racing.i[47038,47051] [2024-10-31 21:56:14,689 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:56:14,721 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 21:56:14,762 WARN L251 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_dc8c1a22-e131-43c0-8918-6e74a1fa29a3/sv-benchmarks/c/goblint-regression/28-race_reach_78-equ_racing.i[47038,47051] [2024-10-31 21:56:14,774 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:56:14,852 INFO L204 MainTranslator]: Completed translation [2024-10-31 21:56:14,853 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:14 WrapperNode [2024-10-31 21:56:14,853 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 21:56:14,854 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 21:56:14,855 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 21:56:14,855 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 21:56:14,861 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:14" (1/1) ... [2024-10-31 21:56:14,876 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:14" (1/1) ... [2024-10-31 21:56:14,909 INFO L138 Inliner]: procedures = 272, calls = 64, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 226 [2024-10-31 21:56:14,910 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 21:56:14,911 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 21:56:14,911 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 21:56:14,911 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 21:56:14,923 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:14" (1/1) ... [2024-10-31 21:56:14,924 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:14" (1/1) ... [2024-10-31 21:56:14,932 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:14" (1/1) ... [2024-10-31 21:56:14,960 INFO L175 MemorySlicer]: Split 35 memory accesses to 4 slices as follows [2, 5, 26, 2]. 74 percent of accesses are in the largest equivalence class. The 23 initializations are split as follows [2, 5, 16, 0]. The 5 writes are split as follows [0, 0, 4, 1]. [2024-10-31 21:56:14,960 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:14" (1/1) ... [2024-10-31 21:56:14,961 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:14" (1/1) ... [2024-10-31 21:56:14,971 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:14" (1/1) ... [2024-10-31 21:56:14,976 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:14" (1/1) ... [2024-10-31 21:56:14,978 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:14" (1/1) ... [2024-10-31 21:56:14,979 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:14" (1/1) ... [2024-10-31 21:56:14,982 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 21:56:14,983 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 21:56:14,984 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 21:56:14,984 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 21:56:14,985 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:14" (1/1) ... [2024-10-31 21:56:14,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:56:15,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8c1a22-e131-43c0-8918-6e74a1fa29a3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:56:15,026 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8c1a22-e131-43c0-8918-6e74a1fa29a3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 21:56:15,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8c1a22-e131-43c0-8918-6e74a1fa29a3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 21:56:15,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-31 21:56:15,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-31 21:56:15,066 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-31 21:56:15,066 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-31 21:56:15,066 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-31 21:56:15,066 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-31 21:56:15,066 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-31 21:56:15,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-31 21:56:15,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-31 21:56:15,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-31 21:56:15,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-31 21:56:15,069 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-31 21:56:15,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 21:56:15,069 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-31 21:56:15,069 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-31 21:56:15,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 21:56:15,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-31 21:56:15,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-31 21:56:15,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-31 21:56:15,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 21:56:15,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 21:56:15,074 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 21:56:15,296 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 21:56:15,299 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 21:56:15,883 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 21:56:15,884 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 21:56:16,203 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 21:56:16,203 INFO L316 CfgBuilder]: Removed 22 assume(true) statements. [2024-10-31 21:56:16,204 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:56:16 BoogieIcfgContainer [2024-10-31 21:56:16,205 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 21:56:16,208 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 21:56:16,208 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 21:56:16,213 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 21:56:16,213 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 09:56:13" (1/3) ... [2024-10-31 21:56:16,214 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dc6ffef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 09:56:16, skipping insertion in model container [2024-10-31 21:56:16,215 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:14" (2/3) ... [2024-10-31 21:56:16,216 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dc6ffef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 09:56:16, skipping insertion in model container [2024-10-31 21:56:16,216 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:56:16" (3/3) ... [2024-10-31 21:56:16,218 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_78-equ_racing.i [2024-10-31 21:56:16,239 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 21:56:16,239 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-31 21:56:16,239 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 21:56:16,300 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-31 21:56:16,362 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 71 places, 94 transitions, 195 flow [2024-10-31 21:56:16,420 INFO L124 PetriNetUnfolderBase]: 38/139 cut-off events. [2024-10-31 21:56:16,420 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 21:56:16,426 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. [2024-10-31 21:56:16,427 INFO L82 GeneralOperation]: Start removeDead. Operand has 71 places, 94 transitions, 195 flow [2024-10-31 21:56:16,436 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 70 places, 91 transitions, 186 flow [2024-10-31 21:56:16,455 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 21:56:16,467 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;@6e8df3db, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 21:56:16,468 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-10-31 21:56:16,480 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 21:56:16,480 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-10-31 21:56:16,481 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 21:56:16,481 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:56:16,482 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1] [2024-10-31 21:56:16,482 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)] === [2024-10-31 21:56:16,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:56:16,489 INFO L85 PathProgramCache]: Analyzing trace with hash 1989050922, now seen corresponding path program 1 times [2024-10-31 21:56:16,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:56:16,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405166882] [2024-10-31 21:56:16,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:56:16,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:56:16,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:56:16,739 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:56:16,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:56:16,847 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:56:16,850 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-31 21:56:16,851 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 4 remaining) [2024-10-31 21:56:16,854 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2024-10-31 21:56:16,854 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2024-10-31 21:56:16,855 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2024-10-31 21:56:16,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 21:56:16,856 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-10-31 21:56:16,862 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-31 21:56:16,864 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-31 21:56:16,921 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-31 21:56:16,930 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 137 transitions, 290 flow [2024-10-31 21:56:17,033 INFO L124 PetriNetUnfolderBase]: 64/235 cut-off events. [2024-10-31 21:56:17,034 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-31 21:56:17,042 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. [2024-10-31 21:56:17,042 INFO L82 GeneralOperation]: Start removeDead. Operand has 103 places, 137 transitions, 290 flow [2024-10-31 21:56:17,049 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 103 places, 136 transitions, 288 flow [2024-10-31 21:56:17,054 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 21:56:17,055 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;@6e8df3db, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 21:56:17,057 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-10-31 21:56:17,074 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 21:56:17,074 INFO L124 PetriNetUnfolderBase]: 6/53 cut-off events. [2024-10-31 21:56:17,075 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-31 21:56:17,075 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:56:17,076 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1] [2024-10-31 21:56:17,076 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)] === [2024-10-31 21:56:17,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:56:17,077 INFO L85 PathProgramCache]: Analyzing trace with hash -150005981, now seen corresponding path program 1 times [2024-10-31 21:56:17,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:56:17,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641952281] [2024-10-31 21:56:17,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:56:17,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:56:17,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:56:17,173 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:56:17,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:56:17,253 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:56:17,257 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-31 21:56:17,257 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 5 remaining) [2024-10-31 21:56:17,257 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2024-10-31 21:56:17,262 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2024-10-31 21:56:17,262 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2024-10-31 21:56:17,262 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2024-10-31 21:56:17,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 21:56:17,263 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-10-31 21:56:17,264 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-31 21:56:17,264 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-10-31 21:56:17,325 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-10-31 21:56:17,331 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 135 places, 180 transitions, 387 flow [2024-10-31 21:56:17,433 INFO L124 PetriNetUnfolderBase]: 93/344 cut-off events. [2024-10-31 21:56:17,434 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-10-31 21:56:17,442 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. [2024-10-31 21:56:17,442 INFO L82 GeneralOperation]: Start removeDead. Operand has 135 places, 180 transitions, 387 flow [2024-10-31 21:56:17,451 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 135 places, 179 transitions, 385 flow [2024-10-31 21:56:17,454 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 21:56:17,456 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;@6e8df3db, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 21:56:17,457 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-10-31 21:56:17,470 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 21:56:17,471 INFO L124 PetriNetUnfolderBase]: 12/84 cut-off events. [2024-10-31 21:56:17,471 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-31 21:56:17,471 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:56:17,471 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:56:17,472 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)] === [2024-10-31 21:56:17,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:56:17,473 INFO L85 PathProgramCache]: Analyzing trace with hash -374116418, now seen corresponding path program 1 times [2024-10-31 21:56:17,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:56:17,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114139269] [2024-10-31 21:56:17,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:56:17,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:56:17,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:56:17,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:56:17,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:56:17,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114139269] [2024-10-31 21:56:17,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114139269] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:56:17,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:56:17,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 21:56:17,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210222354] [2024-10-31 21:56:17,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:56:17,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 21:56:17,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:56:17,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 21:56:17,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:56:17,768 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 180 [2024-10-31 21:56:17,773 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) [2024-10-31 21:56:17,774 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:56:17,774 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 180 [2024-10-31 21:56:17,775 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand