./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-theta/unwind1-1.i --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version a0165632
Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad9f6b7-afff-4f51-9d4e-ec45fc73e59f/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad9f6b7-afff-4f51-9d4e-ec45fc73e59f/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad9f6b7-afff-4f51-9d4e-ec45fc73e59f/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad9f6b7-afff-4f51-9d4e-ec45fc73e59f/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-theta/unwind1-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad9f6b7-afff-4f51-9d4e-ec45fc73e59f/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad9f6b7-afff-4f51-9d4e-ec45fc73e59f/bin/uautomizer-verify-jihMAELWvX --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 369675afdce9f24a16d648c2af0379dafe84b15f75fb11d38697f731d0b5b69e
--- Real Ultimate output ---
This is Ultimate 0.2.5-dev-a016563
[2024-11-08 18:21:47,818 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-08 18:21:47,934 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad9f6b7-afff-4f51-9d4e-ec45fc73e59f/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-08 18:21:47,946 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-08 18:21:47,947 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-08 18:21:47,988 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-08 18:21:47,989 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-08 18:21:47,989 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-08 18:21:47,993 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-08 18:21:47,993 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-08 18:21:47,994 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-08 18:21:47,994 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-08 18:21:47,995 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-08 18:21:47,995 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-08 18:21:47,998 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-08 18:21:47,998 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-08 18:21:48,000 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-08 18:21:48,001 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-08 18:21:48,005 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-08 18:21:48,006 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-08 18:21:48,006 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-08 18:21:48,007 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-08 18:21:48,007 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-08 18:21:48,008 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-08 18:21:48,008 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-11-08 18:21:48,008 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-08 18:21:48,009 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-08 18:21:48,009 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-08 18:21:48,010 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-08 18:21:48,010 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-08 18:21:48,010 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-08 18:21:48,011 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-08 18:21:48,011 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 18:21:48,012 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-08 18:21:48,012 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-08 18:21:48,013 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-08 18:21:48,013 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-08 18:21:48,013 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-08 18:21:48,014 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-08 18:21:48,014 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-08 18:21:48,014 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-08 18:21:48,015 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-08 18:21:48,015 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_cad9f6b7-afff-4f51-9d4e-ec45fc73e59f/bin/uautomizer-verify-jihMAELWvX/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad9f6b7-afff-4f51-9d4e-ec45fc73e59f/bin/uautomizer-verify-jihMAELWvX
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 369675afdce9f24a16d648c2af0379dafe84b15f75fb11d38697f731d0b5b69e
[2024-11-08 18:21:48,348 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-08 18:21:48,406 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-08 18:21:48,410 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-08 18:21:48,412 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-08 18:21:48,412 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-08 18:21:48,414 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad9f6b7-afff-4f51-9d4e-ec45fc73e59f/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/pthread-theta/unwind1-1.i
Unable to find full path for "g++"
[2024-11-08 18:21:50,799 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-11-08 18:21:51,134 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-08 18:21:51,134 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad9f6b7-afff-4f51-9d4e-ec45fc73e59f/sv-benchmarks/c/pthread-theta/unwind1-1.i
[2024-11-08 18:21:51,160 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad9f6b7-afff-4f51-9d4e-ec45fc73e59f/bin/uautomizer-verify-jihMAELWvX/data/b661cc81d/b4210624c1d94cf99ffff38b7d6ee1d0/FLAGe814df920
[2024-11-08 18:21:51,409 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad9f6b7-afff-4f51-9d4e-ec45fc73e59f/bin/uautomizer-verify-jihMAELWvX/data/b661cc81d/b4210624c1d94cf99ffff38b7d6ee1d0
[2024-11-08 18:21:51,413 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-08 18:21:51,415 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-08 18:21:51,417 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-08 18:21:51,419 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-08 18:21:51,426 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-08 18:21:51,427 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:21:51" (1/1) ...
[2024-11-08 18:21:51,428 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4709127a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:21:51, skipping insertion in model container
[2024-11-08 18:21:51,429 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:21:51" (1/1) ...
[2024-11-08 18:21:51,503 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-08 18:21:52,017 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_cad9f6b7-afff-4f51-9d4e-ec45fc73e59f/sv-benchmarks/c/pthread-theta/unwind1-1.i[33026,33039]
[2024-11-08 18:21:52,050 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-08 18:21:52,065 INFO L200 MainTranslator]: Completed pre-run
[2024-11-08 18:21:52,135 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_cad9f6b7-afff-4f51-9d4e-ec45fc73e59f/sv-benchmarks/c/pthread-theta/unwind1-1.i[33026,33039]
[2024-11-08 18:21:52,142 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-08 18:21:52,204 INFO L204 MainTranslator]: Completed translation
[2024-11-08 18:21:52,205 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:21:52 WrapperNode
[2024-11-08 18:21:52,205 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-08 18:21:52,207 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-08 18:21:52,208 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-08 18:21:52,208 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-08 18:21:52,218 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:21:52" (1/1) ...
[2024-11-08 18:21:52,245 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:21:52" (1/1) ...
[2024-11-08 18:21:52,277 INFO L138 Inliner]: procedures = 169, calls = 10, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 53
[2024-11-08 18:21:52,278 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-08 18:21:52,279 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-08 18:21:52,279 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-08 18:21:52,279 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-08 18:21:52,290 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:21:52" (1/1) ...
[2024-11-08 18:21:52,290 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:21:52" (1/1) ...
[2024-11-08 18:21:52,293 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:21:52" (1/1) ...
[2024-11-08 18:21:52,311 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-11-08 18:21:52,312 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:21:52" (1/1) ...
[2024-11-08 18:21:52,312 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:21:52" (1/1) ...
[2024-11-08 18:21:52,321 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:21:52" (1/1) ...
[2024-11-08 18:21:52,328 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:21:52" (1/1) ...
[2024-11-08 18:21:52,333 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:21:52" (1/1) ...
[2024-11-08 18:21:52,334 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:21:52" (1/1) ...
[2024-11-08 18:21:52,337 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-08 18:21:52,338 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-08 18:21:52,339 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-08 18:21:52,339 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-08 18:21:52,340 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:21:52" (1/1) ...
[2024-11-08 18:21:52,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 18:21:52,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad9f6b7-afff-4f51-9d4e-ec45fc73e59f/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:21:52,380 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad9f6b7-afff-4f51-9d4e-ec45fc73e59f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-08 18:21:52,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad9f6b7-afff-4f51-9d4e-ec45fc73e59f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-08 18:21:52,425 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-08 18:21:52,425 INFO L130 BoogieDeclarations]: Found specification of procedure f1
[2024-11-08 18:21:52,425 INFO L138 BoogieDeclarations]: Found implementation of procedure f1
[2024-11-08 18:21:52,425 INFO L130 BoogieDeclarations]: Found specification of procedure f2
[2024-11-08 18:21:52,426 INFO L138 BoogieDeclarations]: Found implementation of procedure f2
[2024-11-08 18:21:52,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-08 18:21:52,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-08 18:21:52,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-08 18:21:52,431 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement.
[2024-11-08 18:21:52,663 INFO L238 CfgBuilder]: Building ICFG
[2024-11-08 18:21:52,667 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-08 18:21:52,929 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program.
[2024-11-08 18:21:52,929 INFO L287 CfgBuilder]: Performing block encoding
[2024-11-08 18:21:53,073 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-08 18:21:53,074 INFO L316 CfgBuilder]: Removed 0 assume(true) statements.
[2024-11-08 18:21:53,074 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:21:53 BoogieIcfgContainer
[2024-11-08 18:21:53,074 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-08 18:21:53,077 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-08 18:21:53,077 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-08 18:21:53,081 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-08 18:21:53,086 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:21:51" (1/3) ...
[2024-11-08 18:21:53,087 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@218f508 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:21:53, skipping insertion in model container
[2024-11-08 18:21:53,087 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:21:52" (2/3) ...
[2024-11-08 18:21:53,087 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@218f508 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:21:53, skipping insertion in model container
[2024-11-08 18:21:53,087 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:21:53" (3/3) ...
[2024-11-08 18:21:53,089 INFO L112 eAbstractionObserver]: Analyzing ICFG unwind1-1.i
[2024-11-08 18:21:53,117 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-08 18:21:53,118 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-08 18:21:53,118 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2024-11-08 18:21:53,174 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions.
[2024-11-08 18:21:53,224 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 30 places, 27 transitions, 68 flow
[2024-11-08 18:21:53,273 INFO L124 PetriNetUnfolderBase]: 4/25 cut-off events.
[2024-11-08 18:21:53,273 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES.
[2024-11-08 18:21:53,280 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34 conditions, 25 events. 4/25 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 33 event pairs, 0 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 22. Up to 2 conditions per place.
[2024-11-08 18:21:53,280 INFO L82 GeneralOperation]: Start removeDead. Operand has 30 places, 27 transitions, 68 flow
[2024-11-08 18:21:53,287 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 26 places, 23 transitions, 55 flow
[2024-11-08 18:21:53,307 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-08 18:21:53,317 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;@36f31382, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-08 18:21:53,317 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations.
[2024-11-08 18:21:53,328 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2024-11-08 18:21:53,328 INFO L124 PetriNetUnfolderBase]: 4/20 cut-off events.
[2024-11-08 18:21:53,328 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES.
[2024-11-08 18:21:53,328 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-08 18:21:53,329 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:21:53,330 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] ===
[2024-11-08 18:21:53,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:21:53,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1574583232, now seen corresponding path program 1 times
[2024-11-08 18:21:53,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:21:53,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150736726]
[2024-11-08 18:21:53,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:21:53,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:21:53,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:21:53,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:21:53,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 18:21:53,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150736726]
[2024-11-08 18:21:53,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150736726] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:21:53,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:21:53,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-08 18:21:53,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238103551]
[2024-11-08 18:21:53,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:21:53,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-08 18:21:53,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 18:21:53,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-08 18:21:53,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-08 18:21:54,004 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27
[2024-11-08 18:21:54,007 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 23 transitions, 55 flow. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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)
[2024-11-08 18:21:54,007 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-08 18:21:54,007 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27
[2024-11-08 18:21:54,009 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-08 18:21:54,257 INFO L124 PetriNetUnfolderBase]: 167/333 cut-off events.
[2024-11-08 18:21:54,257 INFO L125 PetriNetUnfolderBase]: For 27/27 co-relation queries the response was YES.
[2024-11-08 18:21:54,261 INFO L83 FinitePrefix]: Finished finitePrefix Result has 629 conditions, 333 events. 167/333 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1415 event pairs, 68 based on Foata normal form. 11/284 useless extension candidates. Maximal degree in co-relation 565. Up to 145 conditions per place.
[2024-11-08 18:21:54,265 INFO L140 encePairwiseOnDemand]: 19/27 looper letters, 25 selfloop transitions, 7 changer transitions 6/44 dead transitions.
[2024-11-08 18:21:54,265 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 44 transitions, 182 flow
[2024-11-08 18:21:54,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-08 18:21:54,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2024-11-08 18:21:54,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 88 transitions.
[2024-11-08 18:21:54,282 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5432098765432098
[2024-11-08 18:21:54,284 INFO L175 Difference]: Start difference. First operand has 26 places, 23 transitions, 55 flow. Second operand 6 states and 88 transitions.
[2024-11-08 18:21:54,286 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 44 transitions, 182 flow
[2024-11-08 18:21:54,290 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 44 transitions, 171 flow, removed 0 selfloop flow, removed 3 redundant places.
[2024-11-08 18:21:54,293 INFO L231 Difference]: Finished difference. Result has 31 places, 26 transitions, 89 flow
[2024-11-08 18:21:54,296 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=89, PETRI_PLACES=31, PETRI_TRANSITIONS=26}
[2024-11-08 18:21:54,300 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 5 predicate places.
[2024-11-08 18:21:54,301 INFO L471 AbstractCegarLoop]: Abstraction has has 31 places, 26 transitions, 89 flow
[2024-11-08 18:21:54,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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)
[2024-11-08 18:21:54,301 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-08 18:21:54,302 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:21:54,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-08 18:21:54,302 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] ===
[2024-11-08 18:21:54,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:21:54,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1376326083, now seen corresponding path program 1 times
[2024-11-08 18:21:54,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:21:54,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200095366]
[2024-11-08 18:21:54,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:21:54,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:21:54,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:21:54,526 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:21:54,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 18:21:54,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200095366]
[2024-11-08 18:21:54,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200095366] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:21:54,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:21:54,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 18:21:54,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463005590]
[2024-11-08 18:21:54,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:21:54,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 18:21:54,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 18:21:54,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 18:21:54,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 18:21:54,552 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 27
[2024-11-08 18:21:54,553 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 26 transitions, 89 flow. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 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)
[2024-11-08 18:21:54,553 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-08 18:21:54,553 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 27
[2024-11-08 18:21:54,553 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-08 18:21:54,785 INFO L124 PetriNetUnfolderBase]: 125/274 cut-off events.
[2024-11-08 18:21:54,785 INFO L125 PetriNetUnfolderBase]: For 159/159 co-relation queries the response was YES.
[2024-11-08 18:21:54,791 INFO L83 FinitePrefix]: Finished finitePrefix Result has 665 conditions, 274 events. 125/274 cut-off events. For 159/159 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1122 event pairs, 33 based on Foata normal form. 13/277 useless extension candidates. Maximal degree in co-relation 415. Up to 105 conditions per place.
[2024-11-08 18:21:54,793 INFO L140 encePairwiseOnDemand]: 22/27 looper letters, 17 selfloop transitions, 3 changer transitions 18/43 dead transitions.
[2024-11-08 18:21:54,793 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 43 transitions, 220 flow
[2024-11-08 18:21:54,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-08 18:21:54,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2024-11-08 18:21:54,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 71 transitions.
[2024-11-08 18:21:54,798 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5259259259259259
[2024-11-08 18:21:54,798 INFO L175 Difference]: Start difference. First operand has 31 places, 26 transitions, 89 flow. Second operand 5 states and 71 transitions.
[2024-11-08 18:21:54,799 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 43 transitions, 220 flow
[2024-11-08 18:21:54,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 43 transitions, 219 flow, removed 0 selfloop flow, removed 1 redundant places.
[2024-11-08 18:21:54,806 INFO L231 Difference]: Finished difference. Result has 37 places, 22 transitions, 82 flow
[2024-11-08 18:21:54,807 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=82, PETRI_PLACES=37, PETRI_TRANSITIONS=22}
[2024-11-08 18:21:54,809 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 11 predicate places.
[2024-11-08 18:21:54,810 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 22 transitions, 82 flow
[2024-11-08 18:21:54,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 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)
[2024-11-08 18:21:54,810 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-08 18:21:54,810 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:21:54,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-08 18:21:54,812 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] ===
[2024-11-08 18:21:54,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:21:54,813 INFO L85 PathProgramCache]: Analyzing trace with hash 551614955, now seen corresponding path program 1 times
[2024-11-08 18:21:54,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:21:54,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467702773]
[2024-11-08 18:21:54,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:21:54,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:21:54,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:21:55,007 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:21:55,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 18:21:55,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467702773]
[2024-11-08 18:21:55,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467702773] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 18:21:55,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1810936605]
[2024-11-08 18:21:55,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:21:55,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:21:55,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad9f6b7-afff-4f51-9d4e-ec45fc73e59f/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:21:55,012 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad9f6b7-afff-4f51-9d4e-ec45fc73e59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 18:21:55,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad9f6b7-afff-4f51-9d4e-ec45fc73e59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-08 18:21:55,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:21:55,133 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-08 18:21:55,147 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:21:55,386 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:21:55,387 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 18:21:55,476 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:21:55,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1810936605] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 18:21:55,477 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 18:21:55,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9
[2024-11-08 18:21:55,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216458020]
[2024-11-08 18:21:55,478 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 18:21:55,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-11-08 18:21:55,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 18:21:55,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-11-08 18:21:55,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90
[2024-11-08 18:21:55,605 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27
[2024-11-08 18:21:55,607 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 22 transitions, 82 flow. Second operand has 10 states, 10 states have (on average 9.7) internal successors, (97), 10 states have internal predecessors, (97), 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)
[2024-11-08 18:21:55,608 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-08 18:21:55,609 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27
[2024-11-08 18:21:55,609 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-08 18:21:55,778 INFO L124 PetriNetUnfolderBase]: 73/170 cut-off events.
[2024-11-08 18:21:55,778 INFO L125 PetriNetUnfolderBase]: For 89/90 co-relation queries the response was YES.
[2024-11-08 18:21:55,780 INFO L83 FinitePrefix]: Finished finitePrefix Result has 417 conditions, 170 events. 73/170 cut-off events. For 89/90 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 528 event pairs, 27 based on Foata normal form. 5/170 useless extension candidates. Maximal degree in co-relation 378. Up to 69 conditions per place.
[2024-11-08 18:21:55,781 INFO L140 encePairwiseOnDemand]: 21/27 looper letters, 18 selfloop transitions, 4 changer transitions 9/37 dead transitions.
[2024-11-08 18:21:55,782 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 37 transitions, 185 flow
[2024-11-08 18:21:55,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-11-08 18:21:55,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2024-11-08 18:21:55,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 88 transitions.
[2024-11-08 18:21:55,784 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4656084656084656
[2024-11-08 18:21:55,784 INFO L175 Difference]: Start difference. First operand has 37 places, 22 transitions, 82 flow. Second operand 7 states and 88 transitions.
[2024-11-08 18:21:55,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 37 transitions, 185 flow
[2024-11-08 18:21:55,786 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 37 transitions, 163 flow, removed 3 selfloop flow, removed 7 redundant places.
[2024-11-08 18:21:55,787 INFO L231 Difference]: Finished difference. Result has 34 places, 22 transitions, 79 flow
[2024-11-08 18:21:55,788 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=79, PETRI_PLACES=34, PETRI_TRANSITIONS=22}
[2024-11-08 18:21:55,788 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 8 predicate places.
[2024-11-08 18:21:55,789 INFO L471 AbstractCegarLoop]: Abstraction has has 34 places, 22 transitions, 79 flow
[2024-11-08 18:21:55,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.7) internal successors, (97), 10 states have internal predecessors, (97), 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)
[2024-11-08 18:21:55,789 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-08 18:21:55,789 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:21:55,817 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad9f6b7-afff-4f51-9d4e-ec45fc73e59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-08 18:21:55,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad9f6b7-afff-4f51-9d4e-ec45fc73e59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:21:55,994 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] ===
[2024-11-08 18:21:55,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:21:55,995 INFO L85 PathProgramCache]: Analyzing trace with hash 1851322670, now seen corresponding path program 2 times
[2024-11-08 18:21:55,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:21:55,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046759162]
[2024-11-08 18:21:55,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:21:55,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:21:56,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:21:56,182 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:21:56,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 18:21:56,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046759162]
[2024-11-08 18:21:56,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046759162] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 18:21:56,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1092654393]
[2024-11-08 18:21:56,184 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-08 18:21:56,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:21:56,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad9f6b7-afff-4f51-9d4e-ec45fc73e59f/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:21:56,186 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad9f6b7-afff-4f51-9d4e-ec45fc73e59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 18:21:56,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad9f6b7-afff-4f51-9d4e-ec45fc73e59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-08 18:21:56,284 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-08 18:21:56,285 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-08 18:21:56,286 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-08 18:21:56,287 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:21:56,397 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:21:56,397 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 18:21:56,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1092654393] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:21:56,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-08 18:21:56,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7
[2024-11-08 18:21:56,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297747169]
[2024-11-08 18:21:56,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:21:56,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-08 18:21:56,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 18:21:56,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-08 18:21:56,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2024-11-08 18:21:56,437 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 27
[2024-11-08 18:21:56,437 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 22 transitions, 79 flow. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 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)
[2024-11-08 18:21:56,437 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-08 18:21:56,437 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 27
[2024-11-08 18:21:56,438 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-08 18:21:56,582 INFO L124 PetriNetUnfolderBase]: 95/214 cut-off events.
[2024-11-08 18:21:56,583 INFO L125 PetriNetUnfolderBase]: For 119/119 co-relation queries the response was YES.
[2024-11-08 18:21:56,584 INFO L83 FinitePrefix]: Finished finitePrefix Result has 498 conditions, 214 events. 95/214 cut-off events. For 119/119 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 708 event pairs, 36 based on Foata normal form. 5/215 useless extension candidates. Maximal degree in co-relation 476. Up to 90 conditions per place.
[2024-11-08 18:21:56,585 INFO L140 encePairwiseOnDemand]: 22/27 looper letters, 17 selfloop transitions, 2 changer transitions 13/36 dead transitions.
[2024-11-08 18:21:56,585 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 36 transitions, 187 flow
[2024-11-08 18:21:56,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-08 18:21:56,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2024-11-08 18:21:56,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 73 transitions.
[2024-11-08 18:21:56,588 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4506172839506173
[2024-11-08 18:21:56,588 INFO L175 Difference]: Start difference. First operand has 34 places, 22 transitions, 79 flow. Second operand 6 states and 73 transitions.
[2024-11-08 18:21:56,588 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 36 transitions, 187 flow
[2024-11-08 18:21:56,590 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 36 transitions, 174 flow, removed 2 selfloop flow, removed 4 redundant places.
[2024-11-08 18:21:56,591 INFO L231 Difference]: Finished difference. Result has 34 places, 20 transitions, 76 flow
[2024-11-08 18:21:56,591 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=69, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=76, PETRI_PLACES=34, PETRI_TRANSITIONS=20}
[2024-11-08 18:21:56,592 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 8 predicate places.
[2024-11-08 18:21:56,593 INFO L471 AbstractCegarLoop]: Abstraction has has 34 places, 20 transitions, 76 flow
[2024-11-08 18:21:56,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 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)
[2024-11-08 18:21:56,593 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-08 18:21:56,593 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:21:56,619 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad9f6b7-afff-4f51-9d4e-ec45fc73e59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-11-08 18:21:56,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad9f6b7-afff-4f51-9d4e-ec45fc73e59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:21:56,798 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] ===
[2024-11-08 18:21:56,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:21:56,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1783891884, now seen corresponding path program 1 times
[2024-11-08 18:21:56,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:21:56,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670882738]
[2024-11-08 18:21:56,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:21:56,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:21:56,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-08 18:21:56,823 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-08 18:21:56,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-08 18:21:56,873 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-11-08 18:21:56,877 INFO L325 BasicCegarLoop]: Counterexample is feasible
[2024-11-08 18:21:56,878 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location f2Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining)
[2024-11-08 18:21:56,882 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining)
[2024-11-08 18:21:56,882 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining)
[2024-11-08 18:21:56,883 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining)
[2024-11-08 18:21:56,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-08 18:21:56,883 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1]
[2024-11-08 18:21:56,942 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances
[2024-11-08 18:21:56,942 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-11-08 18:21:56,951 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 06:21:56 BasicIcfg
[2024-11-08 18:21:56,952 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-08 18:21:56,952 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-08 18:21:56,952 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-11-08 18:21:56,953 INFO L274 PluginConnector]: Witness Printer initialized
[2024-11-08 18:21:56,953 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:21:53" (3/4) ...
[2024-11-08 18:21:56,958 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample
[2024-11-08 18:21:57,040 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad9f6b7-afff-4f51-9d4e-ec45fc73e59f/bin/uautomizer-verify-jihMAELWvX/witness.graphml
[2024-11-08 18:21:57,044 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-08 18:21:57,045 INFO L158 Benchmark]: Toolchain (without parser) took 5630.65ms. Allocated memory is still 159.4MB. Free memory was 123.8MB in the beginning and 97.8MB in the end (delta: 26.0MB). Peak memory consumption was 30.0MB. Max. memory is 16.1GB.
[2024-11-08 18:21:57,045 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 113.2MB. Free memory was 80.9MB in the beginning and 80.9MB in the end (delta: 26.9kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-08 18:21:57,046 INFO L158 Benchmark]: CACSL2BoogieTranslator took 789.37ms. Allocated memory is still 159.4MB. Free memory was 123.8MB in the beginning and 100.7MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB.
[2024-11-08 18:21:57,046 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.20ms. Allocated memory is still 159.4MB. Free memory was 100.7MB in the beginning and 99.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-11-08 18:21:57,047 INFO L158 Benchmark]: Boogie Preprocessor took 58.47ms. Allocated memory is still 159.4MB. Free memory was 98.6MB in the beginning and 96.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-11-08 18:21:57,047 INFO L158 Benchmark]: RCFGBuilder took 736.11ms. Allocated memory is still 159.4MB. Free memory was 96.5MB in the beginning and 119.8MB in the end (delta: -23.3MB). Peak memory consumption was 16.4MB. Max. memory is 16.1GB.
[2024-11-08 18:21:57,048 INFO L158 Benchmark]: TraceAbstraction took 3874.38ms. Allocated memory is still 159.4MB. Free memory was 118.8MB in the beginning and 100.9MB in the end (delta: 17.9MB). Peak memory consumption was 17.8MB. Max. memory is 16.1GB.
[2024-11-08 18:21:57,048 INFO L158 Benchmark]: Witness Printer took 92.04ms. Allocated memory is still 159.4MB. Free memory was 100.9MB in the beginning and 97.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
[2024-11-08 18:21:57,053 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.24ms. Allocated memory is still 113.2MB. Free memory was 80.9MB in the beginning and 80.9MB in the end (delta: 26.9kB). There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 789.37ms. Allocated memory is still 159.4MB. Free memory was 123.8MB in the beginning and 100.7MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 71.20ms. Allocated memory is still 159.4MB. Free memory was 100.7MB in the beginning and 99.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 58.47ms. Allocated memory is still 159.4MB. Free memory was 98.6MB in the beginning and 96.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 736.11ms. Allocated memory is still 159.4MB. Free memory was 96.5MB in the beginning and 119.8MB in the end (delta: -23.3MB). Peak memory consumption was 16.4MB. Max. memory is 16.1GB.
* TraceAbstraction took 3874.38ms. Allocated memory is still 159.4MB. Free memory was 118.8MB in the beginning and 100.9MB in the end (delta: 17.9MB). Peak memory consumption was 17.8MB. Max. memory is 16.1GB.
* Witness Printer took 92.04ms. Allocated memory is still 159.4MB. Free memory was 100.9MB in the beginning and 97.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- CounterExampleResult [Line: 753]: a call to reach_error is reachable
a call to reach_error is reachable
We found a FailurePath:
[L754] 0 int _N;
[L755] 0 atomic_int limit;
[L772] 0 _N = 1
[L773] CALL 0 assume_abort_if_not(0 <= _N && _N <= 0x7fffffff - 1)
[L750] COND FALSE 0 !(!cond)
[L773] RET 0 assume_abort_if_not(0 <= _N && _N <= 0x7fffffff - 1)
[L774] 0 pthread_t t1, t2;
[L775] FCALL, FORK 0 pthread_create(&t1, 0, f1, 0)
VAL [\old(arg)={0:0}, _N=1, limit=0, t1=0]
[L757] COND FALSE 1 !(__VERIFIER_nondet_int())
[L776] FCALL, FORK 0 pthread_create(&t2, 0, f2, 0)
VAL [\old(arg)={0:0}, _N=1, arg={0:0}, limit=0, t1=0, t2=1]
[L760] 1 limit = _N + 1
VAL [\old(arg)={0:0}, _N=1, arg={0:0}, limit=2]
[L765] 2 int i, bound;
[L766] 2 bound = limit
[L767] 2 i = 0
VAL [\old(arg)={0:0}, \old(arg)={0:0}, _N=1, arg={0:0}, arg={0:0}, bound=2, i=0, limit=2]
[L767] COND FALSE 2 !(i < bound)
VAL [\old(arg)={0:0}, \old(arg)={0:0}, _N=1, arg={0:0}, arg={0:0}, bound=2, i=0, limit=2]
[L767] COND TRUE 2 i < bound
[L767] 2 i++
VAL [\old(arg)={0:0}, \old(arg)={0:0}, _N=1, arg={0:0}, arg={0:0}, bound=2, i=1, limit=2]
[L767] COND FALSE 2 !(i < bound)
VAL [\old(arg)={0:0}, \old(arg)={0:0}, _N=1, arg={0:0}, arg={0:0}, bound=2, i=1, limit=2]
[L767] COND TRUE 2 i < bound
[L767] 2 i++
VAL [\old(arg)={0:0}, \old(arg)={0:0}, _N=1, arg={0:0}, arg={0:0}, bound=2, i=2, limit=2]
[L767] COND TRUE 2 i < bound
VAL [\old(arg)={0:0}, \old(arg)={0:0}, _N=1, arg={0:0}, arg={0:0}, bound=2, i=2, limit=2]
[L768] CALL 2 __VERIFIER_assert(i <= _N)
[L753] COND TRUE 2 !expression
VAL [\old(arg)={0:0}, \old(expression)=0, _N=1, arg={0:0}, expression=0, limit=2]
[L753] 2 reach_error()
VAL [\old(arg)={0:0}, \old(expression)=0, _N=1, arg={0:0}, expression=0, limit=2]
- UnprovableResult [Line: 776]: Unable to prove that petrification did provide enough thread instances (tool internal message)
Unable to prove that petrification did provide enough thread instances (tool internal message)
Reason: Not analyzed.
- UnprovableResult [Line: 775]: Unable to prove that petrification did provide enough thread instances (tool internal message)
Unable to prove that petrification did provide enough thread instances (tool internal message)
Reason: Not analyzed.
- StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances
CFG has 5 procedures, 41 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.7s, OverallIterations: 5, TraceHistogramMax: 2, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 227 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 195 mSDsluCounter, 71 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 48 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 412 IncrementalHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 23 mSDtfsCounter, 412 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 69 GetRequests, 38 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=89occurred in iteration=1, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 96 NumberOfCodeBlocks, 96 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 87 ConstructedInterpolants, 0 QuantifiedInterpolants, 277 SizeOfPredicates, 7 NumberOfNonLiveVariables, 166 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 8/12 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be incorrect!
[2024-11-08 18:21:57,096 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad9f6b7-afff-4f51-9d4e-ec45fc73e59f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Writing output log to file Ultimate.log
Writing human readable error path to file UltimateCounterExample.errorpath
Result:
FALSE