./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.wvr.c --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_ca9a55f0-800a-43e5-a2e8-c8bd94ec35e0/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca9a55f0-800a-43e5-a2e8-c8bd94ec35e0/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_ca9a55f0-800a-43e5-a2e8-c8bd94ec35e0/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca9a55f0-800a-43e5-a2e8-c8bd94ec35e0/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca9a55f0-800a-43e5-a2e8-c8bd94ec35e0/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_ca9a55f0-800a-43e5-a2e8-c8bd94ec35e0/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 2d41b1dc1d5d7eec1f1fd4e3cbbef0194aa2dded6486a15b383e9bb8fe1468a3
--- Real Ultimate output ---
This is Ultimate 0.2.5-dev-a016563
[2024-11-08 17:59:17,829 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-08 17:59:17,923 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca9a55f0-800a-43e5-a2e8-c8bd94ec35e0/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-08 17:59:17,932 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-08 17:59:17,932 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-08 17:59:17,971 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-08 17:59:17,972 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-08 17:59:17,972 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-08 17:59:17,974 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-08 17:59:17,975 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-08 17:59:17,975 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-08 17:59:17,976 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-08 17:59:17,976 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-08 17:59:17,977 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-08 17:59:17,977 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-08 17:59:17,980 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-08 17:59:17,981 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-08 17:59:17,981 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-08 17:59:17,981 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-08 17:59:17,982 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-08 17:59:17,982 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-08 17:59:17,986 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-08 17:59:17,986 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-08 17:59:17,998 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-08 17:59:17,998 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-11-08 17:59:17,999 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-08 17:59:17,999 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-08 17:59:17,999 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-08 17:59:18,000 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-08 17:59:18,000 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-08 17:59:18,000 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-08 17:59:18,001 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-08 17:59:18,001 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 17:59:18,001 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-08 17:59:18,004 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-08 17:59:18,005 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-08 17:59:18,005 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-08 17:59:18,005 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-08 17:59:18,006 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-08 17:59:18,006 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-08 17:59:18,006 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-08 17:59:18,008 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-08 17:59:18,008 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_ca9a55f0-800a-43e5-a2e8-c8bd94ec35e0/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca9a55f0-800a-43e5-a2e8-c8bd94ec35e0/bin/uautomizer-verify-jihMAELWvX
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d41b1dc1d5d7eec1f1fd4e3cbbef0194aa2dded6486a15b383e9bb8fe1468a3
[2024-11-08 17:59:18,287 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-08 17:59:18,317 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-08 17:59:18,322 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-08 17:59:18,323 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-08 17:59:18,324 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-08 17:59:18,326 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca9a55f0-800a-43e5-a2e8-c8bd94ec35e0/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.wvr.c
Unable to find full path for "g++"
[2024-11-08 17:59:20,418 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-11-08 17:59:20,635 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-08 17:59:20,636 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca9a55f0-800a-43e5-a2e8-c8bd94ec35e0/sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.wvr.c
[2024-11-08 17:59:20,644 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca9a55f0-800a-43e5-a2e8-c8bd94ec35e0/bin/uautomizer-verify-jihMAELWvX/data/6952a01a9/2dea5f58a3004a36ad85b8d2f1295110/FLAGfdbf30df8
[2024-11-08 17:59:21,004 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca9a55f0-800a-43e5-a2e8-c8bd94ec35e0/bin/uautomizer-verify-jihMAELWvX/data/6952a01a9/2dea5f58a3004a36ad85b8d2f1295110
[2024-11-08 17:59:21,007 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-08 17:59:21,008 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-08 17:59:21,010 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-08 17:59:21,010 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-08 17:59:21,018 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-08 17:59:21,022 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:59:21" (1/1) ...
[2024-11-08 17:59:21,023 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ab449c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:59:21, skipping insertion in model container
[2024-11-08 17:59:21,023 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:59:21" (1/1) ...
[2024-11-08 17:59:21,060 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-08 17:59:21,318 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_ca9a55f0-800a-43e5-a2e8-c8bd94ec35e0/sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.wvr.c[3822,3835]
[2024-11-08 17:59:21,331 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-08 17:59:21,341 INFO L200 MainTranslator]: Completed pre-run
[2024-11-08 17:59:21,370 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_ca9a55f0-800a-43e5-a2e8-c8bd94ec35e0/sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.wvr.c[3822,3835]
[2024-11-08 17:59:21,375 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-08 17:59:21,393 INFO L204 MainTranslator]: Completed translation
[2024-11-08 17:59:21,393 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:59:21 WrapperNode
[2024-11-08 17:59:21,393 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-08 17:59:21,395 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-08 17:59:21,395 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-08 17:59:21,395 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-08 17:59:21,401 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:59:21" (1/1) ...
[2024-11-08 17:59:21,409 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:59:21" (1/1) ...
[2024-11-08 17:59:21,440 INFO L138 Inliner]: procedures = 26, calls = 53, calls flagged for inlining = 18, calls inlined = 22, statements flattened = 247
[2024-11-08 17:59:21,441 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-08 17:59:21,442 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-08 17:59:21,442 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-08 17:59:21,442 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-08 17:59:21,455 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:59:21" (1/1) ...
[2024-11-08 17:59:21,456 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:59:21" (1/1) ...
[2024-11-08 17:59:21,459 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:59:21" (1/1) ...
[2024-11-08 17:59:21,478 INFO L175 MemorySlicer]: Split 6 memory accesses to 2 slices as follows [2, 4]. 67 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1].
[2024-11-08 17:59:21,478 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:59:21" (1/1) ...
[2024-11-08 17:59:21,478 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:59:21" (1/1) ...
[2024-11-08 17:59:21,488 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:59:21" (1/1) ...
[2024-11-08 17:59:21,493 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:59:21" (1/1) ...
[2024-11-08 17:59:21,495 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:59:21" (1/1) ...
[2024-11-08 17:59:21,497 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:59:21" (1/1) ...
[2024-11-08 17:59:21,500 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-08 17:59:21,501 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-08 17:59:21,502 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-08 17:59:21,502 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-08 17:59:21,503 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:59:21" (1/1) ...
[2024-11-08 17:59:21,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 17:59:21,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca9a55f0-800a-43e5-a2e8-c8bd94ec35e0/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:59:21,535 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca9a55f0-800a-43e5-a2e8-c8bd94ec35e0/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-08 17:59:21,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca9a55f0-800a-43e5-a2e8-c8bd94ec35e0/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-08 17:59:21,567 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-08 17:59:21,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0
[2024-11-08 17:59:21,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1
[2024-11-08 17:59:21,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0
[2024-11-08 17:59:21,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1
[2024-11-08 17:59:21,568 INFO L130 BoogieDeclarations]: Found specification of procedure thread1
[2024-11-08 17:59:21,568 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1
[2024-11-08 17:59:21,568 INFO L130 BoogieDeclarations]: Found specification of procedure thread2
[2024-11-08 17:59:21,569 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2
[2024-11-08 17:59:21,569 INFO L130 BoogieDeclarations]: Found specification of procedure thread3
[2024-11-08 17:59:21,569 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3
[2024-11-08 17:59:21,569 INFO L130 BoogieDeclarations]: Found specification of procedure thread4
[2024-11-08 17:59:21,569 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4
[2024-11-08 17:59:21,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-08 17:59:21,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1
[2024-11-08 17:59:21,570 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2024-11-08 17:59:21,570 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2024-11-08 17:59:21,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2024-11-08 17:59:21,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-08 17:59:21,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-08 17:59:21,573 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 17:59:21,705 INFO L238 CfgBuilder]: Building ICFG
[2024-11-08 17:59:21,707 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-08 17:59:22,169 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program.
[2024-11-08 17:59:22,169 INFO L287 CfgBuilder]: Performing block encoding
[2024-11-08 17:59:22,632 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-08 17:59:22,632 INFO L316 CfgBuilder]: Removed 3 assume(true) statements.
[2024-11-08 17:59:22,633 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:59:22 BoogieIcfgContainer
[2024-11-08 17:59:22,633 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-08 17:59:22,637 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-08 17:59:22,637 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-08 17:59:22,641 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-08 17:59:22,641 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:59:21" (1/3) ...
[2024-11-08 17:59:22,643 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@197050d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:59:22, skipping insertion in model container
[2024-11-08 17:59:22,643 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:59:21" (2/3) ...
[2024-11-08 17:59:22,644 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@197050d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:59:22, skipping insertion in model container
[2024-11-08 17:59:22,644 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:59:22" (3/3) ...
[2024-11-08 17:59:22,646 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-equiv.wvr.c
[2024-11-08 17:59:22,665 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-08 17:59:22,665 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-08 17:59:22,666 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2024-11-08 17:59:22,768 INFO L143 ThreadInstanceAdder]: Constructed 10 joinOtherThreadTransitions.
[2024-11-08 17:59:22,833 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 65 places, 62 transitions, 164 flow
[2024-11-08 17:59:22,902 INFO L124 PetriNetUnfolderBase]: 10/55 cut-off events.
[2024-11-08 17:59:22,903 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES.
[2024-11-08 17:59:22,909 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74 conditions, 55 events. 10/55 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 99 event pairs, 0 based on Foata normal form. 0/44 useless extension candidates. Maximal degree in co-relation 53. Up to 3 conditions per place.
[2024-11-08 17:59:22,909 INFO L82 GeneralOperation]: Start removeDead. Operand has 65 places, 62 transitions, 164 flow
[2024-11-08 17:59:22,915 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 57 places, 54 transitions, 138 flow
[2024-11-08 17:59:22,927 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-08 17:59:22,935 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;@5f5c5e97, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-08 17:59:22,936 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations.
[2024-11-08 17:59:22,958 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2024-11-08 17:59:22,958 INFO L124 PetriNetUnfolderBase]: 10/53 cut-off events.
[2024-11-08 17:59:22,958 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES.
[2024-11-08 17:59:22,959 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-08 17:59:22,959 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:59:22,960 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] ===
[2024-11-08 17:59:22,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:59:22,967 INFO L85 PathProgramCache]: Analyzing trace with hash -1256580494, now seen corresponding path program 1 times
[2024-11-08 17:59:22,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:59:22,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403122983]
[2024-11-08 17:59:22,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:59:22,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:59:23,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:59:23,267 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 17:59:23,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:59:23,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403122983]
[2024-11-08 17:59:23,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403122983] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:59:23,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:59:23,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 17:59:23,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396795917]
[2024-11-08 17:59:23,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:59:23,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-08 17:59:23,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:59:23,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-08 17:59:23,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-08 17:59:23,316 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 64
[2024-11-08 17:59:23,319 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 54 transitions, 138 flow. Second operand has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 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 17:59:23,319 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-08 17:59:23,320 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 64
[2024-11-08 17:59:23,321 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-08 17:59:24,886 INFO L124 PetriNetUnfolderBase]: 8089/10951 cut-off events.
[2024-11-08 17:59:24,887 INFO L125 PetriNetUnfolderBase]: For 686/686 co-relation queries the response was YES.
[2024-11-08 17:59:24,920 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22848 conditions, 10951 events. 8089/10951 cut-off events. For 686/686 co-relation queries the response was YES. Maximal size of possible extension queue 391. Compared 51547 event pairs, 6978 based on Foata normal form. 0/9828 useless extension candidates. Maximal degree in co-relation 22783. Up to 10923 conditions per place.
[2024-11-08 17:59:24,986 INFO L140 encePairwiseOnDemand]: 61/64 looper letters, 44 selfloop transitions, 0 changer transitions 0/51 dead transitions.
[2024-11-08 17:59:24,986 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 51 transitions, 220 flow
[2024-11-08 17:59:24,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-11-08 17:59:24,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states.
[2024-11-08 17:59:25,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 69 transitions.
[2024-11-08 17:59:25,003 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5390625
[2024-11-08 17:59:25,005 INFO L175 Difference]: Start difference. First operand has 57 places, 54 transitions, 138 flow. Second operand 2 states and 69 transitions.
[2024-11-08 17:59:25,007 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 51 transitions, 220 flow
[2024-11-08 17:59:25,022 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 51 transitions, 200 flow, removed 0 selfloop flow, removed 8 redundant places.
[2024-11-08 17:59:25,026 INFO L231 Difference]: Finished difference. Result has 50 places, 51 transitions, 112 flow
[2024-11-08 17:59:25,030 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=112, PETRI_PLACES=50, PETRI_TRANSITIONS=51}
[2024-11-08 17:59:25,036 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, -7 predicate places.
[2024-11-08 17:59:25,036 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 51 transitions, 112 flow
[2024-11-08 17:59:25,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 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 17:59:25,037 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-08 17:59:25,037 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:59:25,037 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-08 17:59:25,038 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] ===
[2024-11-08 17:59:25,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:59:25,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1853100587, now seen corresponding path program 1 times
[2024-11-08 17:59:25,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:59:25,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708782604]
[2024-11-08 17:59:25,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:59:25,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:59:25,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:59:25,366 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 17:59:25,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:59:25,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708782604]
[2024-11-08 17:59:25,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708782604] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:59:25,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:59:25,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-08 17:59:25,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345664794]
[2024-11-08 17:59:25,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:59:25,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 17:59:25,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:59:25,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 17:59:25,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 17:59:25,372 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 64
[2024-11-08 17:59:25,372 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 51 transitions, 112 flow. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 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 17:59:25,373 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-08 17:59:25,373 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 64
[2024-11-08 17:59:25,373 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-08 17:59:28,125 INFO L124 PetriNetUnfolderBase]: 19351/26144 cut-off events.
[2024-11-08 17:59:28,125 INFO L125 PetriNetUnfolderBase]: For 335/335 co-relation queries the response was YES.
[2024-11-08 17:59:28,160 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52857 conditions, 26144 events. 19351/26144 cut-off events. For 335/335 co-relation queries the response was YES. Maximal size of possible extension queue 882. Compared 142307 event pairs, 6122 based on Foata normal form. 1/23269 useless extension candidates. Maximal degree in co-relation 52854. Up to 11645 conditions per place.
[2024-11-08 17:59:28,279 INFO L140 encePairwiseOnDemand]: 58/64 looper letters, 106 selfloop transitions, 7 changer transitions 1/121 dead transitions.
[2024-11-08 17:59:28,279 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 121 transitions, 496 flow
[2024-11-08 17:59:28,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-08 17:59:28,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-11-08 17:59:28,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 159 transitions.
[2024-11-08 17:59:28,283 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.62109375
[2024-11-08 17:59:28,284 INFO L175 Difference]: Start difference. First operand has 50 places, 51 transitions, 112 flow. Second operand 4 states and 159 transitions.
[2024-11-08 17:59:28,284 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 121 transitions, 496 flow
[2024-11-08 17:59:28,289 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 121 transitions, 496 flow, removed 0 selfloop flow, removed 0 redundant places.
[2024-11-08 17:59:28,292 INFO L231 Difference]: Finished difference. Result has 55 places, 57 transitions, 157 flow
[2024-11-08 17:59:28,293 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=157, PETRI_PLACES=55, PETRI_TRANSITIONS=57}
[2024-11-08 17:59:28,294 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, -2 predicate places.
[2024-11-08 17:59:28,294 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 57 transitions, 157 flow
[2024-11-08 17:59:28,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 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 17:59:28,294 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-08 17:59:28,295 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:59:28,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-08 17:59:28,296 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] ===
[2024-11-08 17:59:28,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:59:28,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1745749591, now seen corresponding path program 2 times
[2024-11-08 17:59:28,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:59:28,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204158700]
[2024-11-08 17:59:28,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:59:28,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:59:28,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:59:28,519 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 17:59:28,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:59:28,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204158700]
[2024-11-08 17:59:28,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204158700] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:59:28,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:59:28,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-08 17:59:28,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470465631]
[2024-11-08 17:59:28,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:59:28,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 17:59:28,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:59:28,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 17:59:28,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 17:59:28,527 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 64
[2024-11-08 17:59:28,527 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 57 transitions, 157 flow. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 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 17:59:28,528 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-08 17:59:28,528 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 64
[2024-11-08 17:59:28,528 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-08 17:59:32,383 INFO L124 PetriNetUnfolderBase]: 30684/41321 cut-off events.
[2024-11-08 17:59:32,383 INFO L125 PetriNetUnfolderBase]: For 4086/4086 co-relation queries the response was YES.
[2024-11-08 17:59:32,450 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89851 conditions, 41321 events. 30684/41321 cut-off events. For 4086/4086 co-relation queries the response was YES. Maximal size of possible extension queue 1159. Compared 230523 event pairs, 14006 based on Foata normal form. 1/36755 useless extension candidates. Maximal degree in co-relation 89845. Up to 19516 conditions per place.
[2024-11-08 17:59:32,658 INFO L140 encePairwiseOnDemand]: 58/64 looper letters, 112 selfloop transitions, 8 changer transitions 1/128 dead transitions.
[2024-11-08 17:59:32,658 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 128 transitions, 576 flow
[2024-11-08 17:59:32,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-08 17:59:32,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-11-08 17:59:32,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 160 transitions.
[2024-11-08 17:59:32,661 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.625
[2024-11-08 17:59:32,661 INFO L175 Difference]: Start difference. First operand has 55 places, 57 transitions, 157 flow. Second operand 4 states and 160 transitions.
[2024-11-08 17:59:32,662 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 128 transitions, 576 flow
[2024-11-08 17:59:32,669 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 128 transitions, 576 flow, removed 0 selfloop flow, removed 0 redundant places.
[2024-11-08 17:59:32,671 INFO L231 Difference]: Finished difference. Result has 60 places, 62 transitions, 217 flow
[2024-11-08 17:59:32,672 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=157, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=217, PETRI_PLACES=60, PETRI_TRANSITIONS=62}
[2024-11-08 17:59:32,673 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 3 predicate places.
[2024-11-08 17:59:32,674 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 62 transitions, 217 flow
[2024-11-08 17:59:32,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 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 17:59:32,674 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-08 17:59:32,675 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:59:32,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-08 17:59:32,676 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] ===
[2024-11-08 17:59:32,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:59:32,677 INFO L85 PathProgramCache]: Analyzing trace with hash 253385623, now seen corresponding path program 1 times
[2024-11-08 17:59:32,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:59:32,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692826927]
[2024-11-08 17:59:32,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:59:32,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:59:32,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:59:32,986 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:59:32,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:59:32,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692826927]
[2024-11-08 17:59:32,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692826927] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:59:32,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:59:32,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-08 17:59:32,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749125466]
[2024-11-08 17:59:32,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:59:32,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-08 17:59:32,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:59:32,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-08 17:59:32,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-08 17:59:33,013 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 64
[2024-11-08 17:59:33,014 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 62 transitions, 217 flow. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 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 17:59:33,015 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-08 17:59:33,015 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 64
[2024-11-08 17:59:33,015 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-08 17:59:37,522 INFO L124 PetriNetUnfolderBase]: 42070/57212 cut-off events.
[2024-11-08 17:59:37,522 INFO L125 PetriNetUnfolderBase]: For 16753/16758 co-relation queries the response was YES.
[2024-11-08 17:59:37,601 INFO L83 FinitePrefix]: Finished finitePrefix Result has 128522 conditions, 57212 events. 42070/57212 cut-off events. For 16753/16758 co-relation queries the response was YES. Maximal size of possible extension queue 1546. Compared 335539 event pairs, 32096 based on Foata normal form. 1244/51690 useless extension candidates. Maximal degree in co-relation 128513. Up to 41255 conditions per place.
[2024-11-08 17:59:37,781 INFO L140 encePairwiseOnDemand]: 56/64 looper letters, 104 selfloop transitions, 7 changer transitions 2/118 dead transitions.
[2024-11-08 17:59:37,781 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 118 transitions, 619 flow
[2024-11-08 17:59:37,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-08 17:59:37,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2024-11-08 17:59:37,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 154 transitions.
[2024-11-08 17:59:37,783 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4010416666666667
[2024-11-08 17:59:37,783 INFO L175 Difference]: Start difference. First operand has 60 places, 62 transitions, 217 flow. Second operand 6 states and 154 transitions.
[2024-11-08 17:59:37,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 118 transitions, 619 flow
[2024-11-08 17:59:37,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 118 transitions, 615 flow, removed 2 selfloop flow, removed 0 redundant places.
[2024-11-08 17:59:37,818 INFO L231 Difference]: Finished difference. Result has 69 places, 68 transitions, 281 flow
[2024-11-08 17:59:37,819 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=215, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=281, PETRI_PLACES=69, PETRI_TRANSITIONS=68}
[2024-11-08 17:59:37,820 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 12 predicate places.
[2024-11-08 17:59:37,820 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 68 transitions, 281 flow
[2024-11-08 17:59:37,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 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 17:59:37,820 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-08 17:59:37,821 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:59:37,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-08 17:59:37,821 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] ===
[2024-11-08 17:59:37,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:59:37,822 INFO L85 PathProgramCache]: Analyzing trace with hash 442467589, now seen corresponding path program 1 times
[2024-11-08 17:59:37,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:59:37,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560059025]
[2024-11-08 17:59:37,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:59:37,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:59:37,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:59:38,024 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:59:38,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:59:38,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560059025]
[2024-11-08 17:59:38,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560059025] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:59:38,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:59:38,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-08 17:59:38,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456222098]
[2024-11-08 17:59:38,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:59:38,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-08 17:59:38,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:59:38,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-08 17:59:38,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-08 17:59:38,043 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 64
[2024-11-08 17:59:38,043 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 68 transitions, 281 flow. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 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 17:59:38,043 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-08 17:59:38,043 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 64
[2024-11-08 17:59:38,043 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-08 17:59:43,346 INFO L124 PetriNetUnfolderBase]: 37185/50538 cut-off events.
[2024-11-08 17:59:43,346 INFO L125 PetriNetUnfolderBase]: For 15442/15442 co-relation queries the response was YES.
[2024-11-08 17:59:43,440 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115726 conditions, 50538 events. 37185/50538 cut-off events. For 15442/15442 co-relation queries the response was YES. Maximal size of possible extension queue 1312. Compared 290953 event pairs, 28958 based on Foata normal form. 382/45023 useless extension candidates. Maximal degree in co-relation 115712. Up to 41255 conditions per place.
[2024-11-08 17:59:43,604 INFO L140 encePairwiseOnDemand]: 57/64 looper letters, 56 selfloop transitions, 2 changer transitions 62/125 dead transitions.
[2024-11-08 17:59:43,604 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 125 transitions, 664 flow
[2024-11-08 17:59:43,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-08 17:59:43,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2024-11-08 17:59:43,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 163 transitions.
[2024-11-08 17:59:43,606 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4244791666666667
[2024-11-08 17:59:43,606 INFO L175 Difference]: Start difference. First operand has 69 places, 68 transitions, 281 flow. Second operand 6 states and 163 transitions.
[2024-11-08 17:59:43,606 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 125 transitions, 664 flow
[2024-11-08 17:59:43,622 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 125 transitions, 662 flow, removed 0 selfloop flow, removed 1 redundant places.
[2024-11-08 17:59:43,625 INFO L231 Difference]: Finished difference. Result has 75 places, 63 transitions, 247 flow
[2024-11-08 17:59:43,626 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=279, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=247, PETRI_PLACES=75, PETRI_TRANSITIONS=63}
[2024-11-08 17:59:43,626 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 18 predicate places.
[2024-11-08 17:59:43,627 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 63 transitions, 247 flow
[2024-11-08 17:59:43,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 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 17:59:43,627 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-08 17:59:43,627 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:59:43,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-08 17:59:43,628 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] ===
[2024-11-08 17:59:43,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:59:43,628 INFO L85 PathProgramCache]: Analyzing trace with hash 1958679013, now seen corresponding path program 1 times
[2024-11-08 17:59:43,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:59:43,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25890605]
[2024-11-08 17:59:43,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:59:43,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:59:43,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:59:43,863 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:59:43,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:59:43,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25890605]
[2024-11-08 17:59:43,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25890605] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:59:43,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1703862555]
[2024-11-08 17:59:43,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:59:43,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:59:43,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca9a55f0-800a-43e5-a2e8-c8bd94ec35e0/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:59:43,867 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca9a55f0-800a-43e5-a2e8-c8bd94ec35e0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:59:43,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca9a55f0-800a-43e5-a2e8-c8bd94ec35e0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-08 17:59:43,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:59:43,996 INFO L255 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-11-08 17:59:44,001 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:59:44,141 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:59:44,145 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 17:59:44,247 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:59:44,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1703862555] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 17:59:44,248 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 17:59:44,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11
[2024-11-08 17:59:44,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80319611]
[2024-11-08 17:59:44,249 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 17:59:44,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2024-11-08 17:59:44,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:59:44,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2024-11-08 17:59:44,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132
[2024-11-08 17:59:44,266 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 64
[2024-11-08 17:59:44,267 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 63 transitions, 247 flow. Second operand has 12 states, 12 states have (on average 12.75) internal successors, (153), 12 states have internal predecessors, (153), 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 17:59:44,267 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-08 17:59:44,267 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 64
[2024-11-08 17:59:44,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-08 17:59:50,371 INFO L124 PetriNetUnfolderBase]: 46894/63472 cut-off events.
[2024-11-08 17:59:50,371 INFO L125 PetriNetUnfolderBase]: For 28450/28450 co-relation queries the response was YES.
[2024-11-08 17:59:50,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 149725 conditions, 63472 events. 46894/63472 cut-off events. For 28450/28450 co-relation queries the response was YES. Maximal size of possible extension queue 1761. Compared 380707 event pairs, 24105 based on Foata normal form. 799/57112 useless extension candidates. Maximal degree in co-relation 149709. Up to 30624 conditions per place.
[2024-11-08 17:59:50,852 INFO L140 encePairwiseOnDemand]: 55/64 looper letters, 162 selfloop transitions, 12 changer transitions 1/179 dead transitions.
[2024-11-08 17:59:50,852 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 179 transitions, 999 flow
[2024-11-08 17:59:50,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-11-08 17:59:50,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states.
[2024-11-08 17:59:50,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 223 transitions.
[2024-11-08 17:59:50,855 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3871527777777778
[2024-11-08 17:59:50,855 INFO L175 Difference]: Start difference. First operand has 75 places, 63 transitions, 247 flow. Second operand 9 states and 223 transitions.
[2024-11-08 17:59:50,855 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 179 transitions, 999 flow
[2024-11-08 17:59:51,189 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 179 transitions, 967 flow, removed 14 selfloop flow, removed 6 redundant places.
[2024-11-08 17:59:51,192 INFO L231 Difference]: Finished difference. Result has 76 places, 71 transitions, 321 flow
[2024-11-08 17:59:51,192 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=231, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=321, PETRI_PLACES=76, PETRI_TRANSITIONS=71}
[2024-11-08 17:59:51,193 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 19 predicate places.
[2024-11-08 17:59:51,193 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 71 transitions, 321 flow
[2024-11-08 17:59:51,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.75) internal successors, (153), 12 states have internal predecessors, (153), 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 17:59:51,194 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-08 17:59:51,194 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:59:51,211 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca9a55f0-800a-43e5-a2e8-c8bd94ec35e0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-08 17:59:51,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca9a55f0-800a-43e5-a2e8-c8bd94ec35e0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:59:51,396 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] ===
[2024-11-08 17:59:51,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:59:51,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1633892770, now seen corresponding path program 1 times
[2024-11-08 17:59:51,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:59:51,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377399159]
[2024-11-08 17:59:51,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:59:51,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:59:51,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:59:51,616 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:59:51,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:59:51,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377399159]
[2024-11-08 17:59:51,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377399159] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:59:51,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1840266993]
[2024-11-08 17:59:51,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:59:51,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:59:51,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca9a55f0-800a-43e5-a2e8-c8bd94ec35e0/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:59:51,618 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca9a55f0-800a-43e5-a2e8-c8bd94ec35e0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:59:51,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca9a55f0-800a-43e5-a2e8-c8bd94ec35e0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-08 17:59:51,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:59:51,729 INFO L255 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-11-08 17:59:51,732 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:59:51,892 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:59:51,892 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 17:59:51,999 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:59:51,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1840266993] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 17:59:51,999 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 17:59:52,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11
[2024-11-08 17:59:52,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329727373]
[2024-11-08 17:59:52,000 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 17:59:52,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2024-11-08 17:59:52,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:59:52,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2024-11-08 17:59:52,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132
[2024-11-08 17:59:52,013 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 64
[2024-11-08 17:59:52,013 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 71 transitions, 321 flow. Second operand has 12 states, 12 states have (on average 13.916666666666666) internal successors, (167), 12 states have internal predecessors, (167), 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 17:59:52,013 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-08 17:59:52,013 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 64
[2024-11-08 17:59:52,014 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-08 17:59:56,669 INFO L124 PetriNetUnfolderBase]: 36483/49868 cut-off events.
[2024-11-08 17:59:56,669 INFO L125 PetriNetUnfolderBase]: For 23419/23424 co-relation queries the response was YES.
[2024-11-08 17:59:56,774 INFO L83 FinitePrefix]: Finished finitePrefix Result has 118983 conditions, 49868 events. 36483/49868 cut-off events. For 23419/23424 co-relation queries the response was YES. Maximal size of possible extension queue 1246. Compared 289383 event pairs, 17518 based on Foata normal form. 1460/45401 useless extension candidates. Maximal degree in co-relation 118967. Up to 21142 conditions per place.
[2024-11-08 17:59:56,874 INFO L140 encePairwiseOnDemand]: 53/64 looper letters, 86 selfloop transitions, 7 changer transitions 51/148 dead transitions.
[2024-11-08 17:59:56,875 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 148 transitions, 868 flow
[2024-11-08 17:59:56,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-11-08 17:59:56,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states.
[2024-11-08 17:59:56,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 198 transitions.
[2024-11-08 17:59:56,877 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.34375
[2024-11-08 17:59:56,877 INFO L175 Difference]: Start difference. First operand has 76 places, 71 transitions, 321 flow. Second operand 9 states and 198 transitions.
[2024-11-08 17:59:56,877 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 148 transitions, 868 flow
[2024-11-08 17:59:56,901 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 148 transitions, 856 flow, removed 5 selfloop flow, removed 1 redundant places.
[2024-11-08 17:59:56,903 INFO L231 Difference]: Finished difference. Result has 87 places, 66 transitions, 300 flow
[2024-11-08 17:59:56,903 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=309, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=300, PETRI_PLACES=87, PETRI_TRANSITIONS=66}
[2024-11-08 17:59:56,904 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 30 predicate places.
[2024-11-08 17:59:56,904 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 66 transitions, 300 flow
[2024-11-08 17:59:56,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 13.916666666666666) internal successors, (167), 12 states have internal predecessors, (167), 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 17:59:56,905 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-08 17:59:56,905 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:59:56,925 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca9a55f0-800a-43e5-a2e8-c8bd94ec35e0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-11-08 17:59:57,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca9a55f0-800a-43e5-a2e8-c8bd94ec35e0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:59:57,106 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] ===
[2024-11-08 17:59:57,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:59:57,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1070687546, now seen corresponding path program 1 times
[2024-11-08 17:59:57,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:59:57,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236561739]
[2024-11-08 17:59:57,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:59:57,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:59:57,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:59:57,300 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:59:57,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:59:57,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236561739]
[2024-11-08 17:59:57,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236561739] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:59:57,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [640935800]
[2024-11-08 17:59:57,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:59:57,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:59:57,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca9a55f0-800a-43e5-a2e8-c8bd94ec35e0/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:59:57,305 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca9a55f0-800a-43e5-a2e8-c8bd94ec35e0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:59:57,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca9a55f0-800a-43e5-a2e8-c8bd94ec35e0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-08 17:59:57,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:59:57,425 INFO L255 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-11-08 17:59:57,427 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:59:57,586 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:59:57,586 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 17:59:57,708 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:59:57,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [640935800] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 17:59:57,708 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 17:59:57,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11
[2024-11-08 17:59:57,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514544447]
[2024-11-08 17:59:57,709 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 17:59:57,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2024-11-08 17:59:57,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:59:57,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2024-11-08 17:59:57,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132
[2024-11-08 17:59:57,725 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 64
[2024-11-08 17:59:57,725 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 66 transitions, 300 flow. Second operand has 12 states, 12 states have (on average 14.583333333333334) internal successors, (175), 12 states have internal predecessors, (175), 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 17:59:57,726 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-08 17:59:57,726 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 64
[2024-11-08 17:59:57,726 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-08 18:00:00,532 INFO L124 PetriNetUnfolderBase]: 23295/31574 cut-off events.
[2024-11-08 18:00:00,532 INFO L125 PetriNetUnfolderBase]: For 25340/25345 co-relation queries the response was YES.
[2024-11-08 18:00:00,615 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84407 conditions, 31574 events. 23295/31574 cut-off events. For 25340/25345 co-relation queries the response was YES. Maximal size of possible extension queue 812. Compared 171097 event pairs, 11465 based on Foata normal form. 830/28830 useless extension candidates. Maximal degree in co-relation 84387. Up to 24876 conditions per place.
[2024-11-08 18:00:00,697 INFO L140 encePairwiseOnDemand]: 55/64 looper letters, 79 selfloop transitions, 8 changer transitions 0/91 dead transitions.
[2024-11-08 18:00:00,697 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 91 transitions, 568 flow
[2024-11-08 18:00:00,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-11-08 18:00:00,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2024-11-08 18:00:00,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 129 transitions.
[2024-11-08 18:00:00,699 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.28794642857142855
[2024-11-08 18:00:00,699 INFO L175 Difference]: Start difference. First operand has 87 places, 66 transitions, 300 flow. Second operand 7 states and 129 transitions.
[2024-11-08 18:00:00,699 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 91 transitions, 568 flow
[2024-11-08 18:00:00,845 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 91 transitions, 526 flow, removed 18 selfloop flow, removed 9 redundant places.
[2024-11-08 18:00:00,847 INFO L231 Difference]: Finished difference. Result has 80 places, 69 transitions, 314 flow
[2024-11-08 18:00:00,848 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=314, PETRI_PLACES=80, PETRI_TRANSITIONS=69}
[2024-11-08 18:00:00,848 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 23 predicate places.
[2024-11-08 18:00:00,849 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 69 transitions, 314 flow
[2024-11-08 18:00:00,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 14.583333333333334) internal successors, (175), 12 states have internal predecessors, (175), 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 18:00:00,849 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-08 18:00:00,849 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:00:00,873 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca9a55f0-800a-43e5-a2e8-c8bd94ec35e0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-11-08 18:00:01,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca9a55f0-800a-43e5-a2e8-c8bd94ec35e0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:00:01,050 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] ===
[2024-11-08 18:00:01,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:00:01,051 INFO L85 PathProgramCache]: Analyzing trace with hash 281733348, now seen corresponding path program 2 times
[2024-11-08 18:00:01,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:00:01,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445724616]
[2024-11-08 18:00:01,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:00:01,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:00:01,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:00:01,220 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:00:01,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 18:00:01,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445724616]
[2024-11-08 18:00:01,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445724616] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 18:00:01,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1775699640]
[2024-11-08 18:00:01,221 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-08 18:00:01,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:00:01,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca9a55f0-800a-43e5-a2e8-c8bd94ec35e0/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:00:01,224 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca9a55f0-800a-43e5-a2e8-c8bd94ec35e0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 18:00:01,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca9a55f0-800a-43e5-a2e8-c8bd94ec35e0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-11-08 18:00:01,347 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-08 18:00:01,348 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-08 18:00:01,349 INFO L255 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-11-08 18:00:01,351 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:00:01,474 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:00:01,475 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 18:00:01,870 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:00:01,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1775699640] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-08 18:00:01,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences.
[2024-11-08 18:00:01,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 11
[2024-11-08 18:00:01,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288065382]
[2024-11-08 18:00:01,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:00:01,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-08 18:00:01,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 18:00:01,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-08 18:00:01,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132
[2024-11-08 18:00:01,881 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 64
[2024-11-08 18:00:01,881 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 69 transitions, 314 flow. Second operand has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 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 18:00:01,881 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-08 18:00:01,882 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 64
[2024-11-08 18:00:01,882 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-08 18:00:04,248 INFO L124 PetriNetUnfolderBase]: 19893/26928 cut-off events.
[2024-11-08 18:00:04,248 INFO L125 PetriNetUnfolderBase]: For 18360/18360 co-relation queries the response was YES.
[2024-11-08 18:00:04,313 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70389 conditions, 26928 events. 19893/26928 cut-off events. For 18360/18360 co-relation queries the response was YES. Maximal size of possible extension queue 673. Compared 141419 event pairs, 11581 based on Foata normal form. 589/24354 useless extension candidates. Maximal degree in co-relation 70372. Up to 17849 conditions per place.
[2024-11-08 18:00:04,376 INFO L140 encePairwiseOnDemand]: 58/64 looper letters, 98 selfloop transitions, 6 changer transitions 1/109 dead transitions.
[2024-11-08 18:00:04,376 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 109 transitions, 679 flow
[2024-11-08 18:00:04,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-08 18:00:04,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2024-11-08 18:00:04,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 130 transitions.
[2024-11-08 18:00:04,377 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3385416666666667
[2024-11-08 18:00:04,378 INFO L175 Difference]: Start difference. First operand has 80 places, 69 transitions, 314 flow. Second operand 6 states and 130 transitions.
[2024-11-08 18:00:04,378 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 109 transitions, 679 flow
[2024-11-08 18:00:04,467 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 109 transitions, 654 flow, removed 6 selfloop flow, removed 4 redundant places.
[2024-11-08 18:00:04,468 INFO L231 Difference]: Finished difference. Result has 82 places, 70 transitions, 317 flow
[2024-11-08 18:00:04,468 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=296, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=317, PETRI_PLACES=82, PETRI_TRANSITIONS=70}
[2024-11-08 18:00:04,469 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 25 predicate places.
[2024-11-08 18:00:04,469 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 70 transitions, 317 flow
[2024-11-08 18:00:04,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 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 18:00:04,469 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-08 18:00:04,469 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:00:04,485 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca9a55f0-800a-43e5-a2e8-c8bd94ec35e0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2024-11-08 18:00:04,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca9a55f0-800a-43e5-a2e8-c8bd94ec35e0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:00:04,670 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] ===
[2024-11-08 18:00:04,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:00:04,671 INFO L85 PathProgramCache]: Analyzing trace with hash 1686973530, now seen corresponding path program 1 times
[2024-11-08 18:00:04,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:00:04,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308873276]
[2024-11-08 18:00:04,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:00:04,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:00:04,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:00:05,785 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:00:05,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 18:00:05,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308873276]
[2024-11-08 18:00:05,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308873276] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 18:00:05,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [383504408]
[2024-11-08 18:00:05,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:00:05,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:00:05,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca9a55f0-800a-43e5-a2e8-c8bd94ec35e0/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:00:05,788 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca9a55f0-800a-43e5-a2e8-c8bd94ec35e0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 18:00:05,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca9a55f0-800a-43e5-a2e8-c8bd94ec35e0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-11-08 18:00:05,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:00:05,913 INFO L255 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 25 conjuncts are in the unsatisfiable core
[2024-11-08 18:00:05,915 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:00:06,114 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7
[2024-11-08 18:00:06,151 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-08 18:00:06,151 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 18:00:06,277 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-08 18:00:06,278 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 14
[2024-11-08 18:00:06,339 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-08 18:00:06,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [383504408] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 18:00:06,339 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 18:00:06,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 8] total 19
[2024-11-08 18:00:06,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126639767]
[2024-11-08 18:00:06,340 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 18:00:06,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states
[2024-11-08 18:00:06,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 18:00:06,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2024-11-08 18:00:06,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342
[2024-11-08 18:00:06,428 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 64
[2024-11-08 18:00:06,428 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 70 transitions, 317 flow. Second operand has 19 states, 19 states have (on average 14.894736842105264) internal successors, (283), 19 states have internal predecessors, (283), 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 18:00:06,428 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-08 18:00:06,429 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 64
[2024-11-08 18:00:06,429 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-08 18:00:12,430 INFO L124 PetriNetUnfolderBase]: 38600/52231 cut-off events.
[2024-11-08 18:00:12,430 INFO L125 PetriNetUnfolderBase]: For 36940/36945 co-relation queries the response was YES.
[2024-11-08 18:00:12,546 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136673 conditions, 52231 events. 38600/52231 cut-off events. For 36940/36945 co-relation queries the response was YES. Maximal size of possible extension queue 1252. Compared 296977 event pairs, 8421 based on Foata normal form. 3/45964 useless extension candidates. Maximal degree in co-relation 136655. Up to 20794 conditions per place.
[2024-11-08 18:00:12,671 INFO L140 encePairwiseOnDemand]: 52/64 looper letters, 353 selfloop transitions, 54 changer transitions 7/422 dead transitions.
[2024-11-08 18:00:12,671 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 422 transitions, 2375 flow
[2024-11-08 18:00:12,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states.
[2024-11-08 18:00:12,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states.
[2024-11-08 18:00:12,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 611 transitions.
[2024-11-08 18:00:12,674 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.45461309523809523
[2024-11-08 18:00:12,674 INFO L175 Difference]: Start difference. First operand has 82 places, 70 transitions, 317 flow. Second operand 21 states and 611 transitions.
[2024-11-08 18:00:12,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 422 transitions, 2375 flow
[2024-11-08 18:00:13,002 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 422 transitions, 2350 flow, removed 0 selfloop flow, removed 4 redundant places.
[2024-11-08 18:00:13,005 INFO L231 Difference]: Finished difference. Result has 106 places, 120 transitions, 828 flow
[2024-11-08 18:00:13,005 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=828, PETRI_PLACES=106, PETRI_TRANSITIONS=120}
[2024-11-08 18:00:13,005 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 49 predicate places.
[2024-11-08 18:00:13,006 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 120 transitions, 828 flow
[2024-11-08 18:00:13,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 14.894736842105264) internal successors, (283), 19 states have internal predecessors, (283), 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 18:00:13,006 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-08 18:00:13,006 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:00:13,028 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca9a55f0-800a-43e5-a2e8-c8bd94ec35e0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0
[2024-11-08 18:00:13,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca9a55f0-800a-43e5-a2e8-c8bd94ec35e0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9
[2024-11-08 18:00:13,208 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] ===
[2024-11-08 18:00:13,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:00:13,208 INFO L85 PathProgramCache]: Analyzing trace with hash -2102982571, now seen corresponding path program 1 times
[2024-11-08 18:00:13,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:00:13,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326467802]
[2024-11-08 18:00:13,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:00:13,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:00:13,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:00:14,354 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:00:14,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 18:00:14,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326467802]
[2024-11-08 18:00:14,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326467802] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 18:00:14,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1157621259]
[2024-11-08 18:00:14,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:00:14,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:00:14,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca9a55f0-800a-43e5-a2e8-c8bd94ec35e0/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:00:14,357 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca9a55f0-800a-43e5-a2e8-c8bd94ec35e0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 18:00:14,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca9a55f0-800a-43e5-a2e8-c8bd94ec35e0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2024-11-08 18:00:14,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:00:14,482 INFO L255 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 25 conjuncts are in the unsatisfiable core
[2024-11-08 18:00:14,484 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:00:14,682 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7
[2024-11-08 18:00:14,707 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-08 18:00:14,708 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 18:00:14,842 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-08 18:00:14,843 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 14
[2024-11-08 18:00:14,862 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-08 18:00:14,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1157621259] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 18:00:14,863 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 18:00:14,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 8] total 19
[2024-11-08 18:00:14,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851316228]
[2024-11-08 18:00:14,863 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 18:00:14,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states
[2024-11-08 18:00:14,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 18:00:14,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2024-11-08 18:00:14,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342
[2024-11-08 18:00:14,955 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 64
[2024-11-08 18:00:14,955 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 120 transitions, 828 flow. Second operand has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 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 18:00:14,955 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-08 18:00:14,956 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 64
[2024-11-08 18:00:14,956 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand