./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/popl20-simple-queue.wvr.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for memory safety (deref-memtrack)
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_eeeaea6f-62a3-49ce-8ab4-1a44bac0d914/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeaea6f-62a3-49ce-8ab4-1a44bac0d914/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_eeeaea6f-62a3-49ce-8ab4-1a44bac0d914/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeaea6f-62a3-49ce-8ab4-1a44bac0d914/bin/uautomizer-verify-jihMAELWvX/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/popl20-simple-queue.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeaea6f-62a3-49ce-8ab4-1a44bac0d914/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeaea6f-62a3-49ce-8ab4-1a44bac0d914/bin/uautomizer-verify-jihMAELWvX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 608e0c2870f111f9f6921442a1f1a544ee956a8de04c7629c0edf3e54cde4da3
--- Real Ultimate output ---
This is Ultimate 0.2.5-dev-a016563
[2024-11-08 18:54:57,949 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-08 18:54:58,054 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeaea6f-62a3-49ce-8ab4-1a44bac0d914/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf
[2024-11-08 18:54:58,064 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-08 18:54:58,067 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-08 18:54:58,108 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-08 18:54:58,108 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-08 18:54:58,109 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-08 18:54:58,110 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-08 18:54:58,110 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-08 18:54:58,111 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-08 18:54:58,111 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-08 18:54:58,112 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-08 18:54:58,113 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-08 18:54:58,114 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-08 18:54:58,117 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-08 18:54:58,117 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-08 18:54:58,118 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-08 18:54:58,118 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-08 18:54:58,118 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-08 18:54:58,119 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true
[2024-11-08 18:54:58,124 INFO L153 SettingsManager]: * Bitprecise bitfields=true
[2024-11-08 18:54:58,125 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true
[2024-11-08 18:54:58,125 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-08 18:54:58,125 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2024-11-08 18:54:58,126 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-11-08 18:54:58,126 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-11-08 18:54:58,126 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-08 18:54:58,126 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-08 18:54:58,127 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-08 18:54:58,127 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-08 18:54:58,127 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-08 18:54:58,128 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-08 18:54:58,131 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 18:54:58,132 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-08 18:54:58,132 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-08 18:54:58,132 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-08 18:54:58,132 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-08 18:54:58,133 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-08 18:54:58,133 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-08 18:54:58,133 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-08 18:54:58,135 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-08 18:54:58,135 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_eeeaea6f-62a3-49ce-8ab4-1a44bac0d914/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeaea6f-62a3-49ce-8ab4-1a44bac0d914/bin/uautomizer-verify-jihMAELWvX
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 608e0c2870f111f9f6921442a1f1a544ee956a8de04c7629c0edf3e54cde4da3
[2024-11-08 18:54:58,431 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-08 18:54:58,468 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-08 18:54:58,471 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-08 18:54:58,472 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-08 18:54:58,473 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-08 18:54:58,474 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeaea6f-62a3-49ce-8ab4-1a44bac0d914/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/weaver/popl20-simple-queue.wvr.c
Unable to find full path for "g++"
[2024-11-08 18:55:00,556 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-11-08 18:55:00,843 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-08 18:55:00,844 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeaea6f-62a3-49ce-8ab4-1a44bac0d914/sv-benchmarks/c/weaver/popl20-simple-queue.wvr.c
[2024-11-08 18:55:00,867 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeaea6f-62a3-49ce-8ab4-1a44bac0d914/bin/uautomizer-verify-jihMAELWvX/data/5f0756623/fb3f9e2eb83b4c2e9c19752235234d92/FLAGbbea8a790
[2024-11-08 18:55:00,899 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeaea6f-62a3-49ce-8ab4-1a44bac0d914/bin/uautomizer-verify-jihMAELWvX/data/5f0756623/fb3f9e2eb83b4c2e9c19752235234d92
[2024-11-08 18:55:00,902 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-08 18:55:00,905 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-08 18:55:00,906 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-08 18:55:00,907 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-08 18:55:00,914 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-08 18:55:00,915 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:55:00" (1/1) ...
[2024-11-08 18:55:00,919 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8a35216 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:55:00, skipping insertion in model container
[2024-11-08 18:55:00,919 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:55:00" (1/1) ...
[2024-11-08 18:55:00,958 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-08 18:55:01,299 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-08 18:55:01,306 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-08 18:55:01,325 INFO L200 MainTranslator]: Completed pre-run
[2024-11-08 18:55:01,370 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-08 18:55:01,394 INFO L204 MainTranslator]: Completed translation
[2024-11-08 18:55:01,396 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:55:01 WrapperNode
[2024-11-08 18:55:01,396 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-08 18:55:01,397 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-08 18:55:01,398 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-08 18:55:01,399 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-08 18:55:01,407 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:55:01" (1/1) ...
[2024-11-08 18:55:01,419 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:55:01" (1/1) ...
[2024-11-08 18:55:01,456 INFO L138 Inliner]: procedures = 23, calls = 24, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 124
[2024-11-08 18:55:01,457 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-08 18:55:01,458 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-08 18:55:01,458 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-08 18:55:01,458 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-08 18:55:01,474 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:55:01" (1/1) ...
[2024-11-08 18:55:01,475 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:55:01" (1/1) ...
[2024-11-08 18:55:01,482 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:55:01" (1/1) ...
[2024-11-08 18:55:01,506 INFO L175 MemorySlicer]: Split 5 memory accesses to 2 slices as follows [2, 3]. 60 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 18:55:01,511 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:55:01" (1/1) ...
[2024-11-08 18:55:01,511 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:55:01" (1/1) ...
[2024-11-08 18:55:01,523 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:55:01" (1/1) ...
[2024-11-08 18:55:01,532 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:55:01" (1/1) ...
[2024-11-08 18:55:01,535 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:55:01" (1/1) ...
[2024-11-08 18:55:01,540 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:55:01" (1/1) ...
[2024-11-08 18:55:01,543 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-08 18:55:01,548 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-08 18:55:01,548 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-08 18:55:01,548 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-08 18:55:01,549 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:55:01" (1/1) ...
[2024-11-08 18:55:01,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 18:55:01,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeaea6f-62a3-49ce-8ab4-1a44bac0d914/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:55:01,591 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeaea6f-62a3-49ce-8ab4-1a44bac0d914/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-08 18:55:01,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeaea6f-62a3-49ce-8ab4-1a44bac0d914/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-08 18:55:01,634 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-08 18:55:01,634 INFO L130 BoogieDeclarations]: Found specification of procedure thread1
[2024-11-08 18:55:01,635 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1
[2024-11-08 18:55:01,635 INFO L130 BoogieDeclarations]: Found specification of procedure thread2
[2024-11-08 18:55:01,635 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2
[2024-11-08 18:55:01,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-08 18:55:01,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1
[2024-11-08 18:55:01,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0
[2024-11-08 18:55:01,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1
[2024-11-08 18:55:01,637 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2024-11-08 18:55:01,637 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2024-11-08 18:55:01,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2024-11-08 18:55:01,639 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-08 18:55:01,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-08 18:55:01,640 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0
[2024-11-08 18:55:01,640 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1
[2024-11-08 18:55:01,642 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement.
[2024-11-08 18:55:01,771 INFO L238 CfgBuilder]: Building ICFG
[2024-11-08 18:55:01,774 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-08 18:55:02,112 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program.
[2024-11-08 18:55:02,113 INFO L287 CfgBuilder]: Performing block encoding
[2024-11-08 18:55:02,412 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-08 18:55:02,412 INFO L316 CfgBuilder]: Removed 2 assume(true) statements.
[2024-11-08 18:55:02,413 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:55:02 BoogieIcfgContainer
[2024-11-08 18:55:02,413 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-08 18:55:02,417 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-08 18:55:02,417 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-08 18:55:02,425 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-08 18:55:02,425 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:55:00" (1/3) ...
[2024-11-08 18:55:02,427 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@700814e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:55:02, skipping insertion in model container
[2024-11-08 18:55:02,427 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:55:01" (2/3) ...
[2024-11-08 18:55:02,428 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@700814e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:55:02, skipping insertion in model container
[2024-11-08 18:55:02,428 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:55:02" (3/3) ...
[2024-11-08 18:55:02,430 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-simple-queue.wvr.c
[2024-11-08 18:55:02,453 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-08 18:55:02,454 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations.
[2024-11-08 18:55:02,454 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2024-11-08 18:55:02,540 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions.
[2024-11-08 18:55:02,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 41 places, 40 transitions, 94 flow
[2024-11-08 18:55:02,612 INFO L124 PetriNetUnfolderBase]: 6/38 cut-off events.
[2024-11-08 18:55:02,613 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES.
[2024-11-08 18:55:02,616 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 38 events. 6/38 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 59 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 23. Up to 2 conditions per place.
[2024-11-08 18:55:02,616 INFO L82 GeneralOperation]: Start removeDead. Operand has 41 places, 40 transitions, 94 flow
[2024-11-08 18:55:02,620 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 38 places, 37 transitions, 86 flow
[2024-11-08 18:55:02,630 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-08 18:55:02,637 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=None, 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;@41858ad4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-08 18:55:02,638 INFO L334 AbstractCegarLoop]: Starting to check reachability of 14 error locations.
[2024-11-08 18:55:02,644 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2024-11-08 18:55:02,644 INFO L124 PetriNetUnfolderBase]: 2/8 cut-off events.
[2024-11-08 18:55:02,644 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-11-08 18:55:02,645 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-08 18:55:02,645 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1]
[2024-11-08 18:55:02,646 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] ===
[2024-11-08 18:55:02,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:55:02,652 INFO L85 PathProgramCache]: Analyzing trace with hash 12566372, now seen corresponding path program 1 times
[2024-11-08 18:55:02,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:55:02,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192262068]
[2024-11-08 18:55:02,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:55:02,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:55:02,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:55:03,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:55:03,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 18:55:03,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192262068]
[2024-11-08 18:55:03,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192262068] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:55:03,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:55:03,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2024-11-08 18:55:03,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503668845]
[2024-11-08 18:55:03,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:55:03,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 18:55:03,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 18:55:03,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 18:55:03,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 18:55:03,078 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 40
[2024-11-08 18:55:03,081 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 37 transitions, 86 flow. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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 18:55:03,081 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-08 18:55:03,081 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 40
[2024-11-08 18:55:03,082 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-08 18:55:03,349 INFO L124 PetriNetUnfolderBase]: 213/374 cut-off events.
[2024-11-08 18:55:03,350 INFO L125 PetriNetUnfolderBase]: For 27/27 co-relation queries the response was YES.
[2024-11-08 18:55:03,354 INFO L83 FinitePrefix]: Finished finitePrefix Result has 771 conditions, 374 events. 213/374 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1456 event pairs, 176 based on Foata normal form. 1/268 useless extension candidates. Maximal degree in co-relation 705. Up to 364 conditions per place.
[2024-11-08 18:55:03,361 INFO L140 encePairwiseOnDemand]: 34/40 looper letters, 23 selfloop transitions, 2 changer transitions 0/32 dead transitions.
[2024-11-08 18:55:03,361 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 32 transitions, 126 flow
[2024-11-08 18:55:03,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-08 18:55:03,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-11-08 18:55:03,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 59 transitions.
[2024-11-08 18:55:03,375 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49166666666666664
[2024-11-08 18:55:03,377 INFO L175 Difference]: Start difference. First operand has 38 places, 37 transitions, 86 flow. Second operand 3 states and 59 transitions.
[2024-11-08 18:55:03,378 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 32 transitions, 126 flow
[2024-11-08 18:55:03,381 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 32 transitions, 118 flow, removed 0 selfloop flow, removed 4 redundant places.
[2024-11-08 18:55:03,397 INFO L231 Difference]: Finished difference. Result has 33 places, 32 transitions, 72 flow
[2024-11-08 18:55:03,403 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=72, PETRI_PLACES=33, PETRI_TRANSITIONS=32}
[2024-11-08 18:55:03,411 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, -5 predicate places.
[2024-11-08 18:55:03,412 INFO L471 AbstractCegarLoop]: Abstraction has has 33 places, 32 transitions, 72 flow
[2024-11-08 18:55:03,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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 18:55:03,412 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-08 18:55:03,412 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1]
[2024-11-08 18:55:03,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-08 18:55:03,417 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] ===
[2024-11-08 18:55:03,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:55:03,418 INFO L85 PathProgramCache]: Analyzing trace with hash 12566373, now seen corresponding path program 1 times
[2024-11-08 18:55:03,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:55:03,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438281833]
[2024-11-08 18:55:03,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:55:03,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:55:03,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:55:03,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:55:03,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 18:55:03,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438281833]
[2024-11-08 18:55:03,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438281833] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:55:03,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:55:03,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 18:55:03,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543931821]
[2024-11-08 18:55:03,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:55:03,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-08 18:55:03,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 18:55:03,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-08 18:55:03,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-08 18:55:03,969 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 40
[2024-11-08 18:55:03,969 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 32 transitions, 72 flow. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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 18:55:03,969 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-08 18:55:03,970 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 40
[2024-11-08 18:55:03,970 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-08 18:55:04,180 INFO L124 PetriNetUnfolderBase]: 215/381 cut-off events.
[2024-11-08 18:55:04,180 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES.
[2024-11-08 18:55:04,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 774 conditions, 381 events. 215/381 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1486 event pairs, 176 based on Foata normal form. 0/270 useless extension candidates. Maximal degree in co-relation 737. Up to 373 conditions per place.
[2024-11-08 18:55:04,187 INFO L140 encePairwiseOnDemand]: 35/40 looper letters, 31 selfloop transitions, 5 changer transitions 0/39 dead transitions.
[2024-11-08 18:55:04,191 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 39 transitions, 162 flow
[2024-11-08 18:55:04,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-08 18:55:04,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-11-08 18:55:04,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 65 transitions.
[2024-11-08 18:55:04,193 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.40625
[2024-11-08 18:55:04,193 INFO L175 Difference]: Start difference. First operand has 33 places, 32 transitions, 72 flow. Second operand 4 states and 65 transitions.
[2024-11-08 18:55:04,194 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 39 transitions, 162 flow
[2024-11-08 18:55:04,195 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 39 transitions, 154 flow, removed 0 selfloop flow, removed 2 redundant places.
[2024-11-08 18:55:04,196 INFO L231 Difference]: Finished difference. Result has 36 places, 36 transitions, 100 flow
[2024-11-08 18:55:04,197 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=100, PETRI_PLACES=36, PETRI_TRANSITIONS=36}
[2024-11-08 18:55:04,197 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, -2 predicate places.
[2024-11-08 18:55:04,198 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 36 transitions, 100 flow
[2024-11-08 18:55:04,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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 18:55:04,198 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-08 18:55:04,198 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1]
[2024-11-08 18:55:04,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-08 18:55:04,199 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] ===
[2024-11-08 18:55:04,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:55:04,200 INFO L85 PathProgramCache]: Analyzing trace with hash 703045145, now seen corresponding path program 1 times
[2024-11-08 18:55:04,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:55:04,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400436482]
[2024-11-08 18:55:04,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:55:04,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:55:04,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:55:04,891 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:55:04,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 18:55:04,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400436482]
[2024-11-08 18:55:04,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400436482] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 18:55:04,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [917719579]
[2024-11-08 18:55:04,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:55:04,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:55:04,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeaea6f-62a3-49ce-8ab4-1a44bac0d914/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:55:04,896 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeaea6f-62a3-49ce-8ab4-1a44bac0d914/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 18:55:04,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeaea6f-62a3-49ce-8ab4-1a44bac0d914/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-08 18:55:05,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:55:05,014 INFO L255 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 14 conjuncts are in the unsatisfiable core
[2024-11-08 18:55:05,019 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:55:05,116 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1
[2024-11-08 18:55:05,355 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:55:05,355 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 18:55:05,540 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:55:05,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [917719579] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 18:55:05,541 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 18:55:05,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 10
[2024-11-08 18:55:05,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592553447]
[2024-11-08 18:55:05,542 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 18:55:05,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2024-11-08 18:55:05,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 18:55:05,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2024-11-08 18:55:05,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132
[2024-11-08 18:55:05,651 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 40
[2024-11-08 18:55:05,652 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 36 transitions, 100 flow. Second operand has 12 states, 12 states have (on average 8.75) internal successors, (105), 12 states have internal predecessors, (105), 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 18:55:05,652 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-08 18:55:05,652 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 40
[2024-11-08 18:55:05,652 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-08 18:55:06,218 INFO L124 PetriNetUnfolderBase]: 217/388 cut-off events.
[2024-11-08 18:55:06,218 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES.
[2024-11-08 18:55:06,219 INFO L83 FinitePrefix]: Finished finitePrefix Result has 803 conditions, 388 events. 217/388 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1541 event pairs, 176 based on Foata normal form. 0/279 useless extension candidates. Maximal degree in co-relation 746. Up to 369 conditions per place.
[2024-11-08 18:55:06,222 INFO L140 encePairwiseOnDemand]: 35/40 looper letters, 30 selfloop transitions, 13 changer transitions 0/46 dead transitions.
[2024-11-08 18:55:06,222 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 46 transitions, 214 flow
[2024-11-08 18:55:06,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-11-08 18:55:06,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states.
[2024-11-08 18:55:06,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 101 transitions.
[2024-11-08 18:55:06,225 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.315625
[2024-11-08 18:55:06,225 INFO L175 Difference]: Start difference. First operand has 36 places, 36 transitions, 100 flow. Second operand 8 states and 101 transitions.
[2024-11-08 18:55:06,225 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 46 transitions, 214 flow
[2024-11-08 18:55:06,227 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 46 transitions, 214 flow, removed 0 selfloop flow, removed 0 redundant places.
[2024-11-08 18:55:06,228 INFO L231 Difference]: Finished difference. Result has 42 places, 40 transitions, 142 flow
[2024-11-08 18:55:06,228 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=142, PETRI_PLACES=42, PETRI_TRANSITIONS=40}
[2024-11-08 18:55:06,229 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 4 predicate places.
[2024-11-08 18:55:06,229 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 40 transitions, 142 flow
[2024-11-08 18:55:06,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.75) internal successors, (105), 12 states have internal predecessors, (105), 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 18:55:06,230 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-08 18:55:06,230 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:55:06,253 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeaea6f-62a3-49ce-8ab4-1a44bac0d914/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2024-11-08 18:55:06,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeaea6f-62a3-49ce-8ab4-1a44bac0d914/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:55:06,431 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] ===
[2024-11-08 18:55:06,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:55:06,432 INFO L85 PathProgramCache]: Analyzing trace with hash -1310527453, now seen corresponding path program 1 times
[2024-11-08 18:55:06,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:55:06,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309694477]
[2024-11-08 18:55:06,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:55:06,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:55:06,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:55:06,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:55:06,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 18:55:06,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309694477]
[2024-11-08 18:55:06,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309694477] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:55:06,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:55:06,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 18:55:06,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222420653]
[2024-11-08 18:55:06,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:55:06,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 18:55:06,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 18:55:06,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 18:55:06,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 18:55:06,567 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 40
[2024-11-08 18:55:06,567 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 40 transitions, 142 flow. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 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 18:55:06,568 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-08 18:55:06,568 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 40
[2024-11-08 18:55:06,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-08 18:55:06,673 INFO L124 PetriNetUnfolderBase]: 169/307 cut-off events.
[2024-11-08 18:55:06,673 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES.
[2024-11-08 18:55:06,675 INFO L83 FinitePrefix]: Finished finitePrefix Result has 645 conditions, 307 events. 169/307 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1124 event pairs, 132 based on Foata normal form. 0/244 useless extension candidates. Maximal degree in co-relation 584. Up to 287 conditions per place.
[2024-11-08 18:55:06,677 INFO L140 encePairwiseOnDemand]: 36/40 looper letters, 23 selfloop transitions, 7 changer transitions 0/38 dead transitions.
[2024-11-08 18:55:06,677 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 38 transitions, 198 flow
[2024-11-08 18:55:06,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-08 18:55:06,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-11-08 18:55:06,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 65 transitions.
[2024-11-08 18:55:06,679 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.40625
[2024-11-08 18:55:06,679 INFO L175 Difference]: Start difference. First operand has 42 places, 40 transitions, 142 flow. Second operand 4 states and 65 transitions.
[2024-11-08 18:55:06,680 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 38 transitions, 198 flow
[2024-11-08 18:55:06,681 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 38 transitions, 159 flow, removed 8 selfloop flow, removed 6 redundant places.
[2024-11-08 18:55:06,683 INFO L231 Difference]: Finished difference. Result has 37 places, 38 transitions, 113 flow
[2024-11-08 18:55:06,683 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=99, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=113, PETRI_PLACES=37, PETRI_TRANSITIONS=38}
[2024-11-08 18:55:06,684 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, -1 predicate places.
[2024-11-08 18:55:06,684 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 38 transitions, 113 flow
[2024-11-08 18:55:06,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 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 18:55:06,685 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-08 18:55:06,685 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:55:06,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-08 18:55:06,685 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] ===
[2024-11-08 18:55:06,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:55:06,686 INFO L85 PathProgramCache]: Analyzing trace with hash -1310527452, now seen corresponding path program 1 times
[2024-11-08 18:55:06,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:55:06,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575290896]
[2024-11-08 18:55:06,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:55:06,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:55:06,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:55:06,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:55:06,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 18:55:06,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575290896]
[2024-11-08 18:55:06,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575290896] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:55:06,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:55:06,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 18:55:06,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914093349]
[2024-11-08 18:55:06,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:55:06,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 18:55:06,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 18:55:06,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 18:55:06,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 18:55:06,790 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 40
[2024-11-08 18:55:06,790 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 38 transitions, 113 flow. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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 18:55:06,791 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-08 18:55:06,791 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 40
[2024-11-08 18:55:06,791 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-08 18:55:06,983 INFO L124 PetriNetUnfolderBase]: 236/446 cut-off events.
[2024-11-08 18:55:06,983 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES.
[2024-11-08 18:55:06,984 INFO L83 FinitePrefix]: Finished finitePrefix Result has 912 conditions, 446 events. 236/446 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1852 event pairs, 200 based on Foata normal form. 23/380 useless extension candidates. Maximal degree in co-relation 574. Up to 295 conditions per place.
[2024-11-08 18:55:06,987 INFO L140 encePairwiseOnDemand]: 31/40 looper letters, 42 selfloop transitions, 6 changer transitions 2/56 dead transitions.
[2024-11-08 18:55:06,987 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 56 transitions, 253 flow
[2024-11-08 18:55:06,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-08 18:55:06,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2024-11-08 18:55:06,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 94 transitions.
[2024-11-08 18:55:06,990 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.47
[2024-11-08 18:55:06,990 INFO L175 Difference]: Start difference. First operand has 37 places, 38 transitions, 113 flow. Second operand 5 states and 94 transitions.
[2024-11-08 18:55:06,990 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 56 transitions, 253 flow
[2024-11-08 18:55:06,992 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 56 transitions, 245 flow, removed 0 selfloop flow, removed 2 redundant places.
[2024-11-08 18:55:06,993 INFO L231 Difference]: Finished difference. Result has 41 places, 40 transitions, 139 flow
[2024-11-08 18:55:06,994 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=139, PETRI_PLACES=41, PETRI_TRANSITIONS=40}
[2024-11-08 18:55:06,995 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 3 predicate places.
[2024-11-08 18:55:06,995 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 40 transitions, 139 flow
[2024-11-08 18:55:06,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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 18:55:06,996 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-08 18:55:06,996 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:55:06,997 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-08 18:55:06,997 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] ===
[2024-11-08 18:55:06,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:55:06,998 INFO L85 PathProgramCache]: Analyzing trace with hash 835998936, now seen corresponding path program 1 times
[2024-11-08 18:55:06,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:55:06,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095068170]
[2024-11-08 18:55:06,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:55:06,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:55:07,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:55:07,233 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:55:07,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 18:55:07,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095068170]
[2024-11-08 18:55:07,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095068170] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 18:55:07,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [769178942]
[2024-11-08 18:55:07,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:55:07,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:55:07,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeaea6f-62a3-49ce-8ab4-1a44bac0d914/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:55:07,236 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeaea6f-62a3-49ce-8ab4-1a44bac0d914/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 18:55:07,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeaea6f-62a3-49ce-8ab4-1a44bac0d914/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-08 18:55:07,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:55:07,307 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 16 conjuncts are in the unsatisfiable core
[2024-11-08 18:55:07,309 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:55:07,431 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:55:07,431 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 18:55:07,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [769178942] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:55:07,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-08 18:55:07,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 8
[2024-11-08 18:55:07,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355026369]
[2024-11-08 18:55:07,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:55:07,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-08 18:55:07,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 18:55:07,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-08 18:55:07,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2024-11-08 18:55:07,466 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 40
[2024-11-08 18:55:07,466 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 40 transitions, 139 flow. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 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 18:55:07,466 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-08 18:55:07,467 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 40
[2024-11-08 18:55:07,467 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-08 18:55:07,627 INFO L124 PetriNetUnfolderBase]: 194/375 cut-off events.
[2024-11-08 18:55:07,627 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES.
[2024-11-08 18:55:07,630 INFO L83 FinitePrefix]: Finished finitePrefix Result has 810 conditions, 375 events. 194/375 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1517 event pairs, 162 based on Foata normal form. 0/322 useless extension candidates. Maximal degree in co-relation 496. Up to 351 conditions per place.
[2024-11-08 18:55:07,632 INFO L140 encePairwiseOnDemand]: 36/40 looper letters, 25 selfloop transitions, 7 changer transitions 0/38 dead transitions.
[2024-11-08 18:55:07,632 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 38 transitions, 195 flow
[2024-11-08 18:55:07,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-08 18:55:07,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-11-08 18:55:07,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 61 transitions.
[2024-11-08 18:55:07,633 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.38125
[2024-11-08 18:55:07,634 INFO L175 Difference]: Start difference. First operand has 41 places, 40 transitions, 139 flow. Second operand 4 states and 61 transitions.
[2024-11-08 18:55:07,634 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 38 transitions, 195 flow
[2024-11-08 18:55:07,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 38 transitions, 193 flow, removed 0 selfloop flow, removed 1 redundant places.
[2024-11-08 18:55:07,639 INFO L231 Difference]: Finished difference. Result has 41 places, 38 transitions, 143 flow
[2024-11-08 18:55:07,639 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=129, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=143, PETRI_PLACES=41, PETRI_TRANSITIONS=38}
[2024-11-08 18:55:07,641 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 3 predicate places.
[2024-11-08 18:55:07,641 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 38 transitions, 143 flow
[2024-11-08 18:55:07,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 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 18:55:07,644 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-08 18:55:07,644 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:55:07,667 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeaea6f-62a3-49ce-8ab4-1a44bac0d914/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-11-08 18:55:07,848 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeaea6f-62a3-49ce-8ab4-1a44bac0d914/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5
[2024-11-08 18:55:07,849 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] ===
[2024-11-08 18:55:07,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:55:07,849 INFO L85 PathProgramCache]: Analyzing trace with hash 1782686946, now seen corresponding path program 1 times
[2024-11-08 18:55:07,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:55:07,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375957335]
[2024-11-08 18:55:07,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:55:07,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:55:07,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:55:07,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:55:07,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 18:55:07,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375957335]
[2024-11-08 18:55:07,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375957335] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:55:07,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:55:07,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 18:55:07,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581157158]
[2024-11-08 18:55:07,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:55:07,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 18:55:07,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 18:55:07,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 18:55:07,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 18:55:07,919 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 40
[2024-11-08 18:55:07,920 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 38 transitions, 143 flow. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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 18:55:07,920 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-08 18:55:07,920 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 40
[2024-11-08 18:55:07,920 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-08 18:55:08,065 INFO L124 PetriNetUnfolderBase]: 275/509 cut-off events.
[2024-11-08 18:55:08,065 INFO L125 PetriNetUnfolderBase]: For 53/53 co-relation queries the response was YES.
[2024-11-08 18:55:08,066 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1100 conditions, 509 events. 275/509 cut-off events. For 53/53 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 2062 event pairs, 150 based on Foata normal form. 2/436 useless extension candidates. Maximal degree in co-relation 755. Up to 318 conditions per place.
[2024-11-08 18:55:08,068 INFO L140 encePairwiseOnDemand]: 37/40 looper letters, 34 selfloop transitions, 2 changer transitions 7/51 dead transitions.
[2024-11-08 18:55:08,068 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 51 transitions, 257 flow
[2024-11-08 18:55:08,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-08 18:55:08,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-11-08 18:55:08,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 68 transitions.
[2024-11-08 18:55:08,070 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5666666666666667
[2024-11-08 18:55:08,070 INFO L175 Difference]: Start difference. First operand has 41 places, 38 transitions, 143 flow. Second operand 3 states and 68 transitions.
[2024-11-08 18:55:08,070 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 51 transitions, 257 flow
[2024-11-08 18:55:08,072 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 51 transitions, 249 flow, removed 0 selfloop flow, removed 2 redundant places.
[2024-11-08 18:55:08,073 INFO L231 Difference]: Finished difference. Result has 42 places, 35 transitions, 123 flow
[2024-11-08 18:55:08,073 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=135, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=123, PETRI_PLACES=42, PETRI_TRANSITIONS=35}
[2024-11-08 18:55:08,074 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 4 predicate places.
[2024-11-08 18:55:08,074 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 35 transitions, 123 flow
[2024-11-08 18:55:08,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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 18:55:08,074 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-08 18:55:08,075 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]
[2024-11-08 18:55:08,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-08 18:55:08,075 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] ===
[2024-11-08 18:55:08,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:55:08,078 INFO L85 PathProgramCache]: Analyzing trace with hash -563622648, now seen corresponding path program 1 times
[2024-11-08 18:55:08,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:55:08,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198833688]
[2024-11-08 18:55:08,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:55:08,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:55:08,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:55:08,179 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-08 18:55:08,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 18:55:08,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198833688]
[2024-11-08 18:55:08,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198833688] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:55:08,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:55:08,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 18:55:08,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670188942]
[2024-11-08 18:55:08,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:55:08,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 18:55:08,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 18:55:08,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 18:55:08,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 18:55:08,183 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 40
[2024-11-08 18:55:08,183 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 35 transitions, 123 flow. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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 18:55:08,183 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-08 18:55:08,183 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 40
[2024-11-08 18:55:08,183 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-08 18:55:08,306 INFO L124 PetriNetUnfolderBase]: 254/461 cut-off events.
[2024-11-08 18:55:08,307 INFO L125 PetriNetUnfolderBase]: For 84/84 co-relation queries the response was YES.
[2024-11-08 18:55:08,308 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1040 conditions, 461 events. 254/461 cut-off events. For 84/84 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1710 event pairs, 113 based on Foata normal form. 11/403 useless extension candidates. Maximal degree in co-relation 987. Up to 306 conditions per place.
[2024-11-08 18:55:08,310 INFO L140 encePairwiseOnDemand]: 37/40 looper letters, 33 selfloop transitions, 2 changer transitions 6/49 dead transitions.
[2024-11-08 18:55:08,310 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 49 transitions, 238 flow
[2024-11-08 18:55:08,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-08 18:55:08,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-11-08 18:55:08,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 69 transitions.
[2024-11-08 18:55:08,311 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.575
[2024-11-08 18:55:08,311 INFO L175 Difference]: Start difference. First operand has 42 places, 35 transitions, 123 flow. Second operand 3 states and 69 transitions.
[2024-11-08 18:55:08,312 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 49 transitions, 238 flow
[2024-11-08 18:55:08,313 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 49 transitions, 234 flow, removed 0 selfloop flow, removed 2 redundant places.
[2024-11-08 18:55:08,314 INFO L231 Difference]: Finished difference. Result has 41 places, 36 transitions, 133 flow
[2024-11-08 18:55:08,315 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=119, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=133, PETRI_PLACES=41, PETRI_TRANSITIONS=36}
[2024-11-08 18:55:08,315 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 3 predicate places.
[2024-11-08 18:55:08,316 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 36 transitions, 133 flow
[2024-11-08 18:55:08,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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 18:55:08,316 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-08 18:55:08,316 INFO L204 CegarLoopForPetriNet]: trace histogram [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]
[2024-11-08 18:55:08,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-11-08 18:55:08,316 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] ===
[2024-11-08 18:55:08,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:55:08,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1412625523, now seen corresponding path program 1 times
[2024-11-08 18:55:08,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:55:08,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062893840]
[2024-11-08 18:55:08,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:55:08,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:55:08,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:55:08,891 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:55:08,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 18:55:08,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062893840]
[2024-11-08 18:55:08,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062893840] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 18:55:08,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1713554893]
[2024-11-08 18:55:08,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:55:08,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:55:08,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeaea6f-62a3-49ce-8ab4-1a44bac0d914/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:55:08,898 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeaea6f-62a3-49ce-8ab4-1a44bac0d914/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 18:55:08,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeaea6f-62a3-49ce-8ab4-1a44bac0d914/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-08 18:55:08,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:55:08,996 INFO L255 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 23 conjuncts are in the unsatisfiable core
[2024-11-08 18:55:08,999 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:55:09,073 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1
[2024-11-08 18:55:09,302 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:55:09,302 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 18:55:09,970 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 38 treesize of output 34
[2024-11-08 18:55:09,996 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size
[2024-11-08 18:55:09,996 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 46 treesize of output 37
[2024-11-08 18:55:10,147 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:55:10,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1713554893] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 18:55:10,148 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 18:55:10,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 7] total 17
[2024-11-08 18:55:10,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122732512]
[2024-11-08 18:55:10,149 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 18:55:10,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states
[2024-11-08 18:55:10,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 18:55:10,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants.
[2024-11-08 18:55:10,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306
[2024-11-08 18:55:10,279 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-11-08 18:55:10,279 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 36 transitions, 133 flow. Second operand has 18 states, 18 states have (on average 11.5) internal successors, (207), 18 states have internal predecessors, (207), 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 18:55:10,280 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-08 18:55:10,280 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-11-08 18:55:10,280 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-08 18:55:11,550 INFO L124 PetriNetUnfolderBase]: 835/1489 cut-off events.
[2024-11-08 18:55:11,551 INFO L125 PetriNetUnfolderBase]: For 453/453 co-relation queries the response was YES.
[2024-11-08 18:55:11,554 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3490 conditions, 1489 events. 835/1489 cut-off events. For 453/453 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 7211 event pairs, 283 based on Foata normal form. 3/1268 useless extension candidates. Maximal degree in co-relation 2053. Up to 430 conditions per place.
[2024-11-08 18:55:11,558 INFO L140 encePairwiseOnDemand]: 31/40 looper letters, 57 selfloop transitions, 17 changer transitions 72/149 dead transitions.
[2024-11-08 18:55:11,558 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 149 transitions, 750 flow
[2024-11-08 18:55:11,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states.
[2024-11-08 18:55:11,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states.
[2024-11-08 18:55:11,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 272 transitions.
[2024-11-08 18:55:11,561 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.425
[2024-11-08 18:55:11,561 INFO L175 Difference]: Start difference. First operand has 41 places, 36 transitions, 133 flow. Second operand 16 states and 272 transitions.
[2024-11-08 18:55:11,561 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 149 transitions, 750 flow
[2024-11-08 18:55:11,564 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 149 transitions, 740 flow, removed 3 selfloop flow, removed 1 redundant places.
[2024-11-08 18:55:11,566 INFO L231 Difference]: Finished difference. Result has 62 places, 44 transitions, 247 flow
[2024-11-08 18:55:11,567 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=129, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=247, PETRI_PLACES=62, PETRI_TRANSITIONS=44}
[2024-11-08 18:55:11,568 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 24 predicate places.
[2024-11-08 18:55:11,569 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 44 transitions, 247 flow
[2024-11-08 18:55:11,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 11.5) internal successors, (207), 18 states have internal predecessors, (207), 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 18:55:11,570 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-08 18:55:11,570 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:55:11,590 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeaea6f-62a3-49ce-8ab4-1a44bac0d914/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-11-08 18:55:11,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeaea6f-62a3-49ce-8ab4-1a44bac0d914/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8
[2024-11-08 18:55:11,771 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] ===
[2024-11-08 18:55:11,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:55:11,771 INFO L85 PathProgramCache]: Analyzing trace with hash -975222247, now seen corresponding path program 2 times
[2024-11-08 18:55:11,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:55:11,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23310144]
[2024-11-08 18:55:11,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:55:11,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:55:11,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:55:11,888 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked.
[2024-11-08 18:55:11,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 18:55:11,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23310144]
[2024-11-08 18:55:11,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23310144] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 18:55:11,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1557223990]
[2024-11-08 18:55:11,889 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-08 18:55:11,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:55:11,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeaea6f-62a3-49ce-8ab4-1a44bac0d914/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:55:11,892 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeaea6f-62a3-49ce-8ab4-1a44bac0d914/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 18:55:11,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeaea6f-62a3-49ce-8ab4-1a44bac0d914/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-11-08 18:55:11,983 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-08 18:55:11,983 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-08 18:55:11,984 INFO L255 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-08 18:55:11,987 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:55:12,040 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked.
[2024-11-08 18:55:12,041 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 18:55:12,224 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2024-11-08 18:55:12,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1557223990] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 18:55:12,227 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 18:55:12,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 4] total 6
[2024-11-08 18:55:12,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881814238]
[2024-11-08 18:55:12,228 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 18:55:12,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-08 18:55:12,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 18:55:12,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-08 18:55:12,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2024-11-08 18:55:12,230 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 40
[2024-11-08 18:55:12,233 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 44 transitions, 247 flow. Second operand has 7 states, 7 states have (on average 17.428571428571427) internal successors, (122), 7 states have internal predecessors, (122), 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 18:55:12,234 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-08 18:55:12,234 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 40
[2024-11-08 18:55:12,234 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-08 18:55:12,572 INFO L124 PetriNetUnfolderBase]: 982/1746 cut-off events.
[2024-11-08 18:55:12,573 INFO L125 PetriNetUnfolderBase]: For 1445/1445 co-relation queries the response was YES.
[2024-11-08 18:55:12,578 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4356 conditions, 1746 events. 982/1746 cut-off events. For 1445/1445 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 8640 event pairs, 348 based on Foata normal form. 22/1500 useless extension candidates. Maximal degree in co-relation 4189. Up to 630 conditions per place.
[2024-11-08 18:55:12,584 INFO L140 encePairwiseOnDemand]: 37/40 looper letters, 58 selfloop transitions, 9 changer transitions 0/78 dead transitions.
[2024-11-08 18:55:12,584 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 78 transitions, 516 flow
[2024-11-08 18:55:12,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-08 18:55:12,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-11-08 18:55:12,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 97 transitions.
[2024-11-08 18:55:12,586 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.60625
[2024-11-08 18:55:12,587 INFO L175 Difference]: Start difference. First operand has 62 places, 44 transitions, 247 flow. Second operand 4 states and 97 transitions.
[2024-11-08 18:55:12,587 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 78 transitions, 516 flow
[2024-11-08 18:55:12,592 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 78 transitions, 477 flow, removed 14 selfloop flow, removed 7 redundant places.
[2024-11-08 18:55:12,593 INFO L231 Difference]: Finished difference. Result has 55 places, 50 transitions, 321 flow
[2024-11-08 18:55:12,594 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=321, PETRI_PLACES=55, PETRI_TRANSITIONS=50}
[2024-11-08 18:55:12,595 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 17 predicate places.
[2024-11-08 18:55:12,595 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 50 transitions, 321 flow
[2024-11-08 18:55:12,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.428571428571427) internal successors, (122), 7 states have internal predecessors, (122), 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 18:55:12,596 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-08 18:55:12,596 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:55:12,615 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeaea6f-62a3-49ce-8ab4-1a44bac0d914/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2024-11-08 18:55:12,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeaea6f-62a3-49ce-8ab4-1a44bac0d914/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:55:12,797 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] ===
[2024-11-08 18:55:12,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:55:12,797 INFO L85 PathProgramCache]: Analyzing trace with hash -2054464351, now seen corresponding path program 3 times
[2024-11-08 18:55:12,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:55:12,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434208312]
[2024-11-08 18:55:12,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:55:12,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:55:12,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:55:14,000 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:55:14,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 18:55:14,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434208312]
[2024-11-08 18:55:14,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434208312] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 18:55:14,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [492981654]
[2024-11-08 18:55:14,001 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-11-08 18:55:14,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:55:14,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeaea6f-62a3-49ce-8ab4-1a44bac0d914/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:55:14,004 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeaea6f-62a3-49ce-8ab4-1a44bac0d914/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 18:55:14,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeaea6f-62a3-49ce-8ab4-1a44bac0d914/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-11-08 18:55:14,095 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s)
[2024-11-08 18:55:14,095 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-08 18:55:14,096 INFO L255 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-08 18:55:14,099 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:55:14,195 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked.
[2024-11-08 18:55:14,195 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 18:55:14,226 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size
[2024-11-08 18:55:14,226 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 24 treesize of output 11
[2024-11-08 18:55:14,276 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked.
[2024-11-08 18:55:14,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [492981654] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 18:55:14,276 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 18:55:14,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 4, 4] total 12
[2024-11-08 18:55:14,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195123003]
[2024-11-08 18:55:14,276 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 18:55:14,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2024-11-08 18:55:14,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 18:55:14,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2024-11-08 18:55:14,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156
[2024-11-08 18:55:14,356 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-11-08 18:55:14,357 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 50 transitions, 321 flow. Second operand has 13 states, 13 states have (on average 11.846153846153847) internal successors, (154), 13 states have internal predecessors, (154), 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 18:55:14,357 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-08 18:55:14,357 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-11-08 18:55:14,357 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-08 18:55:15,013 INFO L124 PetriNetUnfolderBase]: 1211/2143 cut-off events.
[2024-11-08 18:55:15,014 INFO L125 PetriNetUnfolderBase]: For 2475/2475 co-relation queries the response was YES.
[2024-11-08 18:55:15,019 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5557 conditions, 2143 events. 1211/2143 cut-off events. For 2475/2475 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 10898 event pairs, 268 based on Foata normal form. 3/1815 useless extension candidates. Maximal degree in co-relation 3248. Up to 794 conditions per place.
[2024-11-08 18:55:15,025 INFO L140 encePairwiseOnDemand]: 34/40 looper letters, 63 selfloop transitions, 19 changer transitions 12/97 dead transitions.
[2024-11-08 18:55:15,025 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 97 transitions, 674 flow
[2024-11-08 18:55:15,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-11-08 18:55:15,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states.
[2024-11-08 18:55:15,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 149 transitions.
[2024-11-08 18:55:15,027 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.41388888888888886
[2024-11-08 18:55:15,027 INFO L175 Difference]: Start difference. First operand has 55 places, 50 transitions, 321 flow. Second operand 9 states and 149 transitions.
[2024-11-08 18:55:15,027 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 97 transitions, 674 flow
[2024-11-08 18:55:15,031 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 97 transitions, 644 flow, removed 15 selfloop flow, removed 0 redundant places.
[2024-11-08 18:55:15,033 INFO L231 Difference]: Finished difference. Result has 64 places, 52 transitions, 377 flow
[2024-11-08 18:55:15,033 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=303, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=377, PETRI_PLACES=64, PETRI_TRANSITIONS=52}
[2024-11-08 18:55:15,033 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 26 predicate places.
[2024-11-08 18:55:15,033 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 52 transitions, 377 flow
[2024-11-08 18:55:15,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 11.846153846153847) internal successors, (154), 13 states have internal predecessors, (154), 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 18:55:15,034 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-08 18:55:15,034 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:55:15,055 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeaea6f-62a3-49ce-8ab4-1a44bac0d914/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2024-11-08 18:55:15,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeaea6f-62a3-49ce-8ab4-1a44bac0d914/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:55:15,235 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] ===
[2024-11-08 18:55:15,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:55:15,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1125352362, now seen corresponding path program 4 times
[2024-11-08 18:55:15,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:55:15,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261952362]
[2024-11-08 18:55:15,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:55:15,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:55:15,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:55:16,039 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:55:16,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 18:55:16,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261952362]
[2024-11-08 18:55:16,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261952362] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 18:55:16,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [361306719]
[2024-11-08 18:55:16,040 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2024-11-08 18:55:16,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:55:16,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeaea6f-62a3-49ce-8ab4-1a44bac0d914/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:55:16,043 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeaea6f-62a3-49ce-8ab4-1a44bac0d914/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 18:55:16,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeaea6f-62a3-49ce-8ab4-1a44bac0d914/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2024-11-08 18:55:16,168 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2024-11-08 18:55:16,169 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-08 18:55:16,171 INFO L255 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 25 conjuncts are in the unsatisfiable core
[2024-11-08 18:55:16,174 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:55:16,273 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1
[2024-11-08 18:55:16,714 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2024-11-08 18:55:16,714 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 18:55:17,815 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 38 treesize of output 34
[2024-11-08 18:55:17,830 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size
[2024-11-08 18:55:17,830 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 46 treesize of output 37
[2024-11-08 18:55:17,981 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2024-11-08 18:55:17,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [361306719] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 18:55:17,983 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 18:55:17,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 9] total 23
[2024-11-08 18:55:17,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805863284]
[2024-11-08 18:55:17,984 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 18:55:17,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states
[2024-11-08 18:55:17,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 18:55:17,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants.
[2024-11-08 18:55:17,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=459, Unknown=0, NotChecked=0, Total=552
[2024-11-08 18:55:18,199 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-11-08 18:55:18,200 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 52 transitions, 377 flow. Second operand has 24 states, 24 states have (on average 11.666666666666666) internal successors, (280), 24 states have internal predecessors, (280), 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 18:55:18,200 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-08 18:55:18,200 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-11-08 18:55:18,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-08 18:55:21,521 INFO L124 PetriNetUnfolderBase]: 2605/4613 cut-off events.
[2024-11-08 18:55:21,521 INFO L125 PetriNetUnfolderBase]: For 6349/6349 co-relation queries the response was YES.
[2024-11-08 18:55:21,538 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11776 conditions, 4613 events. 2605/4613 cut-off events. For 6349/6349 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 27803 event pairs, 853 based on Foata normal form. 45/3939 useless extension candidates. Maximal degree in co-relation 8264. Up to 1239 conditions per place.
[2024-11-08 18:55:21,548 INFO L140 encePairwiseOnDemand]: 31/40 looper letters, 47 selfloop transitions, 11 changer transitions 168/229 dead transitions.
[2024-11-08 18:55:21,549 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 229 transitions, 1462 flow
[2024-11-08 18:55:21,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states.
[2024-11-08 18:55:21,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states.
[2024-11-08 18:55:21,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 364 transitions.
[2024-11-08 18:55:21,551 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.455
[2024-11-08 18:55:21,551 INFO L175 Difference]: Start difference. First operand has 64 places, 52 transitions, 377 flow. Second operand 20 states and 364 transitions.
[2024-11-08 18:55:21,551 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 229 transitions, 1462 flow
[2024-11-08 18:55:21,563 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 229 transitions, 1412 flow, removed 9 selfloop flow, removed 6 redundant places.
[2024-11-08 18:55:21,566 INFO L231 Difference]: Finished difference. Result has 88 places, 48 transitions, 381 flow
[2024-11-08 18:55:21,566 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=348, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=381, PETRI_PLACES=88, PETRI_TRANSITIONS=48}
[2024-11-08 18:55:21,567 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 50 predicate places.
[2024-11-08 18:55:21,567 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 48 transitions, 381 flow
[2024-11-08 18:55:21,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 11.666666666666666) internal successors, (280), 24 states have internal predecessors, (280), 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 18:55:21,568 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-08 18:55:21,568 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:55:21,589 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeaea6f-62a3-49ce-8ab4-1a44bac0d914/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0
[2024-11-08 18:55:21,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeaea6f-62a3-49ce-8ab4-1a44bac0d914/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:55:21,769 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] ===
[2024-11-08 18:55:21,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:55:21,769 INFO L85 PathProgramCache]: Analyzing trace with hash 334109456, now seen corresponding path program 5 times
[2024-11-08 18:55:21,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:55:21,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918121776]
[2024-11-08 18:55:21,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:55:21,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:55:21,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:55:22,872 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:55:22,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 18:55:22,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918121776]
[2024-11-08 18:55:22,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918121776] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 18:55:22,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [84808108]
[2024-11-08 18:55:22,872 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
[2024-11-08 18:55:22,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:55:22,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeaea6f-62a3-49ce-8ab4-1a44bac0d914/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:55:22,874 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeaea6f-62a3-49ce-8ab4-1a44bac0d914/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 18:55:22,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeaea6f-62a3-49ce-8ab4-1a44bac0d914/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2024-11-08 18:55:22,968 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s)
[2024-11-08 18:55:22,969 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-08 18:55:22,970 INFO L255 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 18 conjuncts are in the unsatisfiable core
[2024-11-08 18:55:22,972 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:55:23,155 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-08 18:55:23,155 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 18:55:23,194 INFO L349 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size
[2024-11-08 18:55:23,194 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 25 treesize of output 13
[2024-11-08 18:55:23,231 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2024-11-08 18:55:23,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [84808108] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 18:55:23,232 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 18:55:23,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 6] total 17
[2024-11-08 18:55:23,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347852184]
[2024-11-08 18:55:23,232 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 18:55:23,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states
[2024-11-08 18:55:23,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 18:55:23,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants.
[2024-11-08 18:55:23,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306
[2024-11-08 18:55:23,408 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 40
[2024-11-08 18:55:23,409 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 48 transitions, 381 flow. Second operand has 18 states, 18 states have (on average 12.555555555555555) internal successors, (226), 18 states have internal predecessors, (226), 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 18:55:23,409 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-08 18:55:23,409 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 40
[2024-11-08 18:55:23,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-08 18:55:24,658 INFO L124 PetriNetUnfolderBase]: 1608/2815 cut-off events.
[2024-11-08 18:55:24,658 INFO L125 PetriNetUnfolderBase]: For 6044/6044 co-relation queries the response was YES.
[2024-11-08 18:55:24,680 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7923 conditions, 2815 events. 1608/2815 cut-off events. For 6044/6044 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 14798 event pairs, 233 based on Foata normal form. 5/2386 useless extension candidates. Maximal degree in co-relation 7889. Up to 562 conditions per place.
[2024-11-08 18:55:24,692 INFO L140 encePairwiseOnDemand]: 33/40 looper letters, 101 selfloop transitions, 26 changer transitions 39/174 dead transitions.
[2024-11-08 18:55:24,693 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 174 transitions, 1127 flow
[2024-11-08 18:55:24,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states.
[2024-11-08 18:55:24,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states.
[2024-11-08 18:55:24,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 307 transitions.
[2024-11-08 18:55:24,705 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4796875
[2024-11-08 18:55:24,705 INFO L175 Difference]: Start difference. First operand has 88 places, 48 transitions, 381 flow. Second operand 16 states and 307 transitions.
[2024-11-08 18:55:24,705 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 174 transitions, 1127 flow
[2024-11-08 18:55:24,720 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 174 transitions, 1057 flow, removed 28 selfloop flow, removed 13 redundant places.
[2024-11-08 18:55:24,722 INFO L231 Difference]: Finished difference. Result has 83 places, 55 transitions, 522 flow
[2024-11-08 18:55:24,723 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=339, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=522, PETRI_PLACES=83, PETRI_TRANSITIONS=55}
[2024-11-08 18:55:24,723 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 45 predicate places.
[2024-11-08 18:55:24,724 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 55 transitions, 522 flow
[2024-11-08 18:55:24,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 12.555555555555555) internal successors, (226), 18 states have internal predecessors, (226), 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 18:55:24,728 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-08 18:55:24,728 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:55:24,753 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeaea6f-62a3-49ce-8ab4-1a44bac0d914/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0
[2024-11-08 18:55:24,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeaea6f-62a3-49ce-8ab4-1a44bac0d914/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12
[2024-11-08 18:55:24,929 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] ===
[2024-11-08 18:55:24,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:55:24,929 INFO L85 PathProgramCache]: Analyzing trace with hash 1445192178, now seen corresponding path program 6 times
[2024-11-08 18:55:24,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:55:24,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032112096]
[2024-11-08 18:55:24,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:55:24,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:55:24,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:55:25,068 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 11 proven. 9 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked.
[2024-11-08 18:55:25,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 18:55:25,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032112096]
[2024-11-08 18:55:25,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032112096] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 18:55:25,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1544662797]
[2024-11-08 18:55:25,069 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE
[2024-11-08 18:55:25,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:55:25,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeaea6f-62a3-49ce-8ab4-1a44bac0d914/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:55:25,071 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeaea6f-62a3-49ce-8ab4-1a44bac0d914/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 18:55:25,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeaea6f-62a3-49ce-8ab4-1a44bac0d914/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2024-11-08 18:55:25,175 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s)
[2024-11-08 18:55:25,175 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-08 18:55:25,176 INFO L255 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-08 18:55:25,178 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:55:25,258 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 11 proven. 9 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked.
[2024-11-08 18:55:25,258 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 18:55:25,573 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 7 proven. 15 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2024-11-08 18:55:25,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1544662797] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 18:55:25,573 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 18:55:25,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 6] total 9
[2024-11-08 18:55:25,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578700836]
[2024-11-08 18:55:25,574 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 18:55:25,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-11-08 18:55:25,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 18:55:25,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-11-08 18:55:25,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90
[2024-11-08 18:55:25,578 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 40
[2024-11-08 18:55:25,578 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 55 transitions, 522 flow. Second operand has 10 states, 10 states have (on average 16.7) internal successors, (167), 10 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 18:55:25,578 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-08 18:55:25,578 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 40
[2024-11-08 18:55:25,579 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-08 18:55:26,479 INFO L124 PetriNetUnfolderBase]: 2966/5151 cut-off events.
[2024-11-08 18:55:26,479 INFO L125 PetriNetUnfolderBase]: For 13341/13341 co-relation queries the response was YES.
[2024-11-08 18:55:26,505 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14549 conditions, 5151 events. 2966/5151 cut-off events. For 13341/13341 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 29722 event pairs, 774 based on Foata normal form. 22/4376 useless extension candidates. Maximal degree in co-relation 11234. Up to 1506 conditions per place.
[2024-11-08 18:55:26,526 INFO L140 encePairwiseOnDemand]: 37/40 looper letters, 76 selfloop transitions, 29 changer transitions 0/115 dead transitions.
[2024-11-08 18:55:26,526 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 115 transitions, 1162 flow
[2024-11-08 18:55:26,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-08 18:55:26,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2024-11-08 18:55:26,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 124 transitions.
[2024-11-08 18:55:26,527 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.62
[2024-11-08 18:55:26,528 INFO L175 Difference]: Start difference. First operand has 83 places, 55 transitions, 522 flow. Second operand 5 states and 124 transitions.
[2024-11-08 18:55:26,528 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 115 transitions, 1162 flow
[2024-11-08 18:55:26,547 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 115 transitions, 955 flow, removed 74 selfloop flow, removed 13 redundant places.
[2024-11-08 18:55:26,551 INFO L231 Difference]: Finished difference. Result has 75 places, 73 transitions, 698 flow
[2024-11-08 18:55:26,551 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=408, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=698, PETRI_PLACES=75, PETRI_TRANSITIONS=73}
[2024-11-08 18:55:26,552 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 37 predicate places.
[2024-11-08 18:55:26,552 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 73 transitions, 698 flow
[2024-11-08 18:55:26,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 16.7) internal successors, (167), 10 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 18:55:26,552 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-08 18:55:26,553 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:55:26,576 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeaea6f-62a3-49ce-8ab4-1a44bac0d914/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0
[2024-11-08 18:55:26,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeaea6f-62a3-49ce-8ab4-1a44bac0d914/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13
[2024-11-08 18:55:26,757 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] ===
[2024-11-08 18:55:26,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:55:26,758 INFO L85 PathProgramCache]: Analyzing trace with hash 2094853069, now seen corresponding path program 7 times
[2024-11-08 18:55:26,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:55:26,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873168761]
[2024-11-08 18:55:26,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:55:26,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:55:26,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:55:27,740 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:55:27,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 18:55:27,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873168761]
[2024-11-08 18:55:27,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873168761] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 18:55:27,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1606085308]
[2024-11-08 18:55:27,741 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY
[2024-11-08 18:55:27,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:55:27,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeaea6f-62a3-49ce-8ab4-1a44bac0d914/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:55:27,743 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeaea6f-62a3-49ce-8ab4-1a44bac0d914/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 18:55:27,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeaea6f-62a3-49ce-8ab4-1a44bac0d914/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process
[2024-11-08 18:55:27,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:55:27,881 INFO L255 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 24 conjuncts are in the unsatisfiable core
[2024-11-08 18:55:27,883 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:55:28,540 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size
[2024-11-08 18:55:28,541 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 23 treesize of output 10
[2024-11-08 18:55:28,560 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 10 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:55:28,561 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 18:55:28,637 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size
[2024-11-08 18:55:28,637 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 24 treesize of output 11
[2024-11-08 18:55:29,763 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 3 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:55:29,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1606085308] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 18:55:29,764 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 18:55:29,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 12] total 33
[2024-11-08 18:55:29,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573105987]
[2024-11-08 18:55:29,764 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 18:55:29,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states
[2024-11-08 18:55:29,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 18:55:29,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants.
[2024-11-08 18:55:29,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=949, Unknown=0, NotChecked=0, Total=1122
[2024-11-08 18:55:29,971 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-11-08 18:55:29,972 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 73 transitions, 698 flow. Second operand has 34 states, 34 states have (on average 11.264705882352942) internal successors, (383), 34 states have internal predecessors, (383), 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 18:55:29,973 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-08 18:55:29,973 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-11-08 18:55:29,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-08 18:55:33,973 INFO L124 PetriNetUnfolderBase]: 5351/9338 cut-off events.
[2024-11-08 18:55:33,974 INFO L125 PetriNetUnfolderBase]: For 16199/16199 co-relation queries the response was YES.
[2024-11-08 18:55:34,021 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25020 conditions, 9338 events. 5351/9338 cut-off events. For 16199/16199 co-relation queries the response was YES. Maximal size of possible extension queue 249. Compared 58621 event pairs, 549 based on Foata normal form. 129/8000 useless extension candidates. Maximal degree in co-relation 14664. Up to 1725 conditions per place.
[2024-11-08 18:55:34,050 INFO L140 encePairwiseOnDemand]: 32/40 looper letters, 242 selfloop transitions, 81 changer transitions 69/395 dead transitions.
[2024-11-08 18:55:34,050 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 395 transitions, 2728 flow
[2024-11-08 18:55:34,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states.
[2024-11-08 18:55:34,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states.
[2024-11-08 18:55:34,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 617 transitions.
[2024-11-08 18:55:34,054 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.48203125
[2024-11-08 18:55:34,054 INFO L175 Difference]: Start difference. First operand has 75 places, 73 transitions, 698 flow. Second operand 32 states and 617 transitions.
[2024-11-08 18:55:34,055 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 395 transitions, 2728 flow
[2024-11-08 18:55:34,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 395 transitions, 2598 flow, removed 65 selfloop flow, removed 0 redundant places.
[2024-11-08 18:55:34,109 INFO L231 Difference]: Finished difference. Result has 120 places, 110 transitions, 1317 flow
[2024-11-08 18:55:34,109 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=650, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=1317, PETRI_PLACES=120, PETRI_TRANSITIONS=110}
[2024-11-08 18:55:34,110 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 82 predicate places.
[2024-11-08 18:55:34,110 INFO L471 AbstractCegarLoop]: Abstraction has has 120 places, 110 transitions, 1317 flow
[2024-11-08 18:55:34,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 11.264705882352942) internal successors, (383), 34 states have internal predecessors, (383), 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 18:55:34,111 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-08 18:55:34,111 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:55:34,242 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeaea6f-62a3-49ce-8ab4-1a44bac0d914/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0
[2024-11-08 18:55:34,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeaea6f-62a3-49ce-8ab4-1a44bac0d914/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14
[2024-11-08 18:55:34,311 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] ===
[2024-11-08 18:55:34,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:55:34,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1178135333, now seen corresponding path program 8 times
[2024-11-08 18:55:34,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:55:34,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746664761]
[2024-11-08 18:55:34,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:55:34,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:55:34,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:55:35,213 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:55:35,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 18:55:35,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746664761]
[2024-11-08 18:55:35,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746664761] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 18:55:35,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [622660107]
[2024-11-08 18:55:35,214 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-08 18:55:35,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:55:35,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeaea6f-62a3-49ce-8ab4-1a44bac0d914/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:55:35,216 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeaea6f-62a3-49ce-8ab4-1a44bac0d914/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 18:55:35,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeaea6f-62a3-49ce-8ab4-1a44bac0d914/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process
[2024-11-08 18:55:35,349 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-08 18:55:35,350 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-08 18:55:35,352 INFO L255 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 25 conjuncts are in the unsatisfiable core
[2024-11-08 18:55:35,354 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:55:36,144 INFO L349 Elim1Store]: treesize reduction 7, result has 30.0 percent of original size
[2024-11-08 18:55:36,144 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 24 treesize of output 10
[2024-11-08 18:55:36,155 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 3 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:55:36,156 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 18:55:36,590 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size
[2024-11-08 18:55:36,590 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 24 treesize of output 11
[2024-11-08 18:55:37,626 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:55:37,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [622660107] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 18:55:37,626 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 18:55:37,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 12] total 33
[2024-11-08 18:55:37,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002135536]
[2024-11-08 18:55:37,627 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 18:55:37,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states
[2024-11-08 18:55:37,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 18:55:37,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants.
[2024-11-08 18:55:37,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=979, Unknown=0, NotChecked=0, Total=1122
[2024-11-08 18:55:37,864 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-11-08 18:55:37,865 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 110 transitions, 1317 flow. Second operand has 34 states, 34 states have (on average 11.5) internal successors, (391), 34 states have internal predecessors, (391), 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 18:55:37,865 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-08 18:55:37,866 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-11-08 18:55:37,866 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-08 18:55:44,563 INFO L124 PetriNetUnfolderBase]: 5369/9412 cut-off events.
[2024-11-08 18:55:44,563 INFO L125 PetriNetUnfolderBase]: For 26072/26072 co-relation queries the response was YES.
[2024-11-08 18:55:44,634 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26544 conditions, 9412 events. 5369/9412 cut-off events. For 26072/26072 co-relation queries the response was YES. Maximal size of possible extension queue 262. Compared 60813 event pairs, 1694 based on Foata normal form. 43/7967 useless extension candidates. Maximal degree in co-relation 24218. Up to 4746 conditions per place.
[2024-11-08 18:55:44,653 INFO L140 encePairwiseOnDemand]: 32/40 looper letters, 83 selfloop transitions, 13 changer transitions 260/359 dead transitions.
[2024-11-08 18:55:44,654 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 359 transitions, 2735 flow
[2024-11-08 18:55:44,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states.
[2024-11-08 18:55:44,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states.
[2024-11-08 18:55:44,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 547 transitions.
[2024-11-08 18:55:44,658 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4558333333333333
[2024-11-08 18:55:44,659 INFO L175 Difference]: Start difference. First operand has 120 places, 110 transitions, 1317 flow. Second operand 30 states and 547 transitions.
[2024-11-08 18:55:44,659 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 359 transitions, 2735 flow
[2024-11-08 18:55:44,823 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 359 transitions, 2605 flow, removed 46 selfloop flow, removed 7 redundant places.
[2024-11-08 18:55:44,827 INFO L231 Difference]: Finished difference. Result has 146 places, 82 transitions, 887 flow
[2024-11-08 18:55:44,827 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=1183, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=887, PETRI_PLACES=146, PETRI_TRANSITIONS=82}
[2024-11-08 18:55:44,828 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 108 predicate places.
[2024-11-08 18:55:44,828 INFO L471 AbstractCegarLoop]: Abstraction has has 146 places, 82 transitions, 887 flow
[2024-11-08 18:55:44,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 11.5) internal successors, (391), 34 states have internal predecessors, (391), 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 18:55:44,829 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-08 18:55:44,830 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:55:44,853 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeaea6f-62a3-49ce-8ab4-1a44bac0d914/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0
[2024-11-08 18:55:45,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeaea6f-62a3-49ce-8ab4-1a44bac0d914/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15
[2024-11-08 18:55:45,034 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] ===
[2024-11-08 18:55:45,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:55:45,035 INFO L85 PathProgramCache]: Analyzing trace with hash 173573801, now seen corresponding path program 9 times
[2024-11-08 18:55:45,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:55:45,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001785761]
[2024-11-08 18:55:45,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:55:45,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:55:45,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:55:46,705 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:55:46,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 18:55:46,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001785761]
[2024-11-08 18:55:46,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001785761] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 18:55:46,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [217246432]
[2024-11-08 18:55:46,707 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-11-08 18:55:46,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:55:46,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeaea6f-62a3-49ce-8ab4-1a44bac0d914/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:55:46,710 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeaea6f-62a3-49ce-8ab4-1a44bac0d914/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 18:55:46,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeaea6f-62a3-49ce-8ab4-1a44bac0d914/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process
[2024-11-08 18:55:46,952 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s)
[2024-11-08 18:55:46,952 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-08 18:55:46,954 INFO L255 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 11 conjuncts are in the unsatisfiable core
[2024-11-08 18:55:46,957 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:55:47,436 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 6 proven. 24 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked.
[2024-11-08 18:55:47,436 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 18:55:47,816 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size
[2024-11-08 18:55:47,816 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 24 treesize of output 11
[2024-11-08 18:55:48,088 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 1 proven. 29 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked.
[2024-11-08 18:55:48,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [217246432] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 18:55:48,089 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 18:55:48,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 8, 8] total 26
[2024-11-08 18:55:48,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607077264]
[2024-11-08 18:55:48,089 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 18:55:48,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states
[2024-11-08 18:55:48,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 18:55:48,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants.
[2024-11-08 18:55:48,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=573, Unknown=0, NotChecked=0, Total=702
[2024-11-08 18:55:48,339 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40
[2024-11-08 18:55:48,339 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 82 transitions, 887 flow. Second operand has 27 states, 27 states have (on average 12.074074074074074) internal successors, (326), 27 states have internal predecessors, (326), 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 18:55:48,339 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-08 18:55:48,339 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40
[2024-11-08 18:55:48,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-08 18:55:54,668 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1]
[2024-11-08 18:55:57,546 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1]
[2024-11-08 18:55:58,476 INFO L124 PetriNetUnfolderBase]: 5615/9663 cut-off events.
[2024-11-08 18:55:58,476 INFO L125 PetriNetUnfolderBase]: For 39204/39204 co-relation queries the response was YES.
[2024-11-08 18:55:58,535 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29406 conditions, 9663 events. 5615/9663 cut-off events. For 39204/39204 co-relation queries the response was YES. Maximal size of possible extension queue 274. Compared 60485 event pairs, 964 based on Foata normal form. 23/8194 useless extension candidates. Maximal degree in co-relation 29365. Up to 2122 conditions per place.
[2024-11-08 18:55:58,543 INFO L140 encePairwiseOnDemand]: 33/40 looper letters, 0 selfloop transitions, 0 changer transitions 337/337 dead transitions.
[2024-11-08 18:55:58,543 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 337 transitions, 2767 flow
[2024-11-08 18:55:58,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states.
[2024-11-08 18:55:58,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states.
[2024-11-08 18:55:58,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 490 transitions.
[2024-11-08 18:55:58,546 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.47115384615384615
[2024-11-08 18:55:58,547 INFO L175 Difference]: Start difference. First operand has 146 places, 82 transitions, 887 flow. Second operand 26 states and 490 transitions.
[2024-11-08 18:55:58,547 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 337 transitions, 2767 flow
[2024-11-08 18:55:58,704 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 337 transitions, 2181 flow, removed 149 selfloop flow, removed 29 redundant places.
[2024-11-08 18:55:58,707 INFO L231 Difference]: Finished difference. Result has 105 places, 0 transitions, 0 flow
[2024-11-08 18:55:58,707 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=570, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=0, PETRI_PLACES=105, PETRI_TRANSITIONS=0}
[2024-11-08 18:55:58,707 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 67 predicate places.
[2024-11-08 18:55:58,708 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 0 transitions, 0 flow
[2024-11-08 18:55:58,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 12.074074074074074) internal successors, (326), 27 states have internal predecessors, (326), 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 18:55:58,711 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 14 remaining)
[2024-11-08 18:55:58,712 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 14 remaining)
[2024-11-08 18:55:58,712 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 14 remaining)
[2024-11-08 18:55:58,712 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 14 remaining)
[2024-11-08 18:55:58,713 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 14 remaining)
[2024-11-08 18:55:58,713 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 14 remaining)
[2024-11-08 18:55:58,713 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (7 of 14 remaining)
[2024-11-08 18:55:58,713 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (6 of 14 remaining)
[2024-11-08 18:55:58,713 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 14 remaining)
[2024-11-08 18:55:58,713 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 14 remaining)
[2024-11-08 18:55:58,714 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 14 remaining)
[2024-11-08 18:55:58,714 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 14 remaining)
[2024-11-08 18:55:58,714 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 14 remaining)
[2024-11-08 18:55:58,714 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 14 remaining)
[2024-11-08 18:55:58,739 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeaea6f-62a3-49ce-8ab4-1a44bac0d914/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0
[2024-11-08 18:55:58,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeaea6f-62a3-49ce-8ab4-1a44bac0d914/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16
[2024-11-08 18:55:58,915 INFO L407 BasicCegarLoop]: Path program histogram: [9, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:55:58,922 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances
[2024-11-08 18:55:58,923 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-11-08 18:55:58,928 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 06:55:58 BasicIcfg
[2024-11-08 18:55:58,930 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-08 18:55:58,931 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-08 18:55:58,932 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-11-08 18:55:58,932 INFO L274 PluginConnector]: Witness Printer initialized
[2024-11-08 18:55:58,933 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:55:02" (3/4) ...
[2024-11-08 18:55:58,935 INFO L142 WitnessPrinter]: Generating witness for correct program
[2024-11-08 18:55:58,942 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1
[2024-11-08 18:55:58,942 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2
[2024-11-08 18:55:58,949 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 79 nodes and edges
[2024-11-08 18:55:58,952 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges
[2024-11-08 18:55:58,952 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges
[2024-11-08 18:55:58,952 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges
[2024-11-08 18:55:59,069 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeaea6f-62a3-49ce-8ab4-1a44bac0d914/bin/uautomizer-verify-jihMAELWvX/witness.graphml
[2024-11-08 18:55:59,070 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeaea6f-62a3-49ce-8ab4-1a44bac0d914/bin/uautomizer-verify-jihMAELWvX/witness.yml
[2024-11-08 18:55:59,070 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-08 18:55:59,071 INFO L158 Benchmark]: Toolchain (without parser) took 58166.57ms. Allocated memory was 136.3MB in the beginning and 849.3MB in the end (delta: 713.0MB). Free memory was 104.5MB in the beginning and 490.0MB in the end (delta: -385.5MB). Peak memory consumption was 328.7MB. Max. memory is 16.1GB.
[2024-11-08 18:55:59,071 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 136.3MB. Free memory is still 92.1MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-08 18:55:59,072 INFO L158 Benchmark]: CACSL2BoogieTranslator took 490.55ms. Allocated memory is still 136.3MB. Free memory was 104.2MB in the beginning and 91.0MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
[2024-11-08 18:55:59,072 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.50ms. Allocated memory is still 136.3MB. Free memory was 91.0MB in the beginning and 89.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-11-08 18:55:59,076 INFO L158 Benchmark]: Boogie Preprocessor took 89.31ms. Allocated memory is still 136.3MB. Free memory was 89.1MB in the beginning and 86.5MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
[2024-11-08 18:55:59,077 INFO L158 Benchmark]: RCFGBuilder took 865.60ms. Allocated memory was 136.3MB in the beginning and 163.6MB in the end (delta: 27.3MB). Free memory was 86.5MB in the beginning and 121.8MB in the end (delta: -35.2MB). Peak memory consumption was 29.2MB. Max. memory is 16.1GB.
[2024-11-08 18:55:59,077 INFO L158 Benchmark]: TraceAbstraction took 56513.18ms. Allocated memory was 163.6MB in the beginning and 849.3MB in the end (delta: 685.8MB). Free memory was 120.9MB in the beginning and 495.2MB in the end (delta: -374.3MB). Peak memory consumption was 484.0MB. Max. memory is 16.1GB.
[2024-11-08 18:55:59,077 INFO L158 Benchmark]: Witness Printer took 138.86ms. Allocated memory is still 849.3MB. Free memory was 495.2MB in the beginning and 490.0MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
[2024-11-08 18:55:59,080 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.26ms. Allocated memory is still 136.3MB. Free memory is still 92.1MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 490.55ms. Allocated memory is still 136.3MB. Free memory was 104.2MB in the beginning and 91.0MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 59.50ms. Allocated memory is still 136.3MB. Free memory was 91.0MB in the beginning and 89.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 89.31ms. Allocated memory is still 136.3MB. Free memory was 89.1MB in the beginning and 86.5MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
* RCFGBuilder took 865.60ms. Allocated memory was 136.3MB in the beginning and 163.6MB in the end (delta: 27.3MB). Free memory was 86.5MB in the beginning and 121.8MB in the end (delta: -35.2MB). Peak memory consumption was 29.2MB. Max. memory is 16.1GB.
* TraceAbstraction took 56513.18ms. Allocated memory was 163.6MB in the beginning and 849.3MB in the end (delta: 685.8MB). Free memory was 120.9MB in the beginning and 495.2MB in the end (delta: -374.3MB). Peak memory consumption was 484.0MB. Max. memory is 16.1GB.
* Witness Printer took 138.86ms. Allocated memory is still 849.3MB. Free memory was 495.2MB in the beginning and 490.0MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: 21]: all allocated memory was freed
For all program executions holds that all allocated memory was freed at this location
- PositiveResult [Line: 70]: all allocated memory was freed
For all program executions holds that all allocated memory was freed at this location
- StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances
CFG has 5 procedures, 53 locations, 14 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 56.3s, OverallIterations: 17, TraceHistogramMax: 4, PathProgramHistogramMax: 9, EmptinessCheckTime: 0.0s, AutomataDifference: 32.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 2 mSolverCounterUnknown, 3293 SdHoareTripleChecker+Valid, 17.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3230 mSDsluCounter, 1491 SdHoareTripleChecker+Invalid, 16.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1484 mSDsCounter, 221 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10763 IncrementalHoareTripleChecker+Invalid, 10986 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 221 mSolverCounterUnsat, 7 mSDtfsCounter, 10763 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 964 GetRequests, 638 SyntacticMatches, 0 SemanticMatches, 326 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2172 ImplicationChecksByTransitivity, 12.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1317occurred in iteration=15, InterpolantAutomatonStates: 192, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 19.0s InterpolantComputationTime, 824 NumberOfCodeBlocks, 812 NumberOfCodeBlocksAsserted, 41 NumberOfCheckSat, 1153 ConstructedInterpolants, 63 QuantifiedInterpolants, 13416 SizeOfPredicates, 86 NumberOfNonLiveVariables, 1974 ConjunctsInSsa, 172 ConjunctsInUnsatCore, 38 InterpolantComputations, 7 PerfectInterpolantSequences, 247/794 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
- AllSpecificationsHoldResult: All specifications hold
8 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2024-11-08 18:55:59,119 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeaea6f-62a3-49ce-8ab4-1a44bac0d914/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE