./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_11-ptr_racing.i --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version a0165632
Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0497a9a-e11c-4c50-9bd1-9ae638f8c190/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0497a9a-e11c-4c50-9bd1-9ae638f8c190/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_c0497a9a-e11c-4c50-9bd1-9ae638f8c190/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0497a9a-e11c-4c50-9bd1-9ae638f8c190/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_11-ptr_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0497a9a-e11c-4c50-9bd1-9ae638f8c190/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0497a9a-e11c-4c50-9bd1-9ae638f8c190/bin/uautomizer-verify-jihMAELWvX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 265daba2b5ad7b4578f16c23ab641f7a5441c3a3894a2482737cba7b750ee6df
--- Real Ultimate output ---
This is Ultimate 0.2.5-dev-a016563
[2024-11-08 19:10:31,464 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-08 19:10:31,548 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0497a9a-e11c-4c50-9bd1-9ae638f8c190/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-08 19:10:31,554 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-08 19:10:31,556 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-08 19:10:31,604 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-08 19:10:31,604 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-08 19:10:31,605 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-08 19:10:31,608 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-08 19:10:31,609 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-08 19:10:31,609 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-08 19:10:31,610 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-08 19:10:31,612 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-08 19:10:31,612 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-08 19:10:31,615 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-08 19:10:31,616 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-08 19:10:31,616 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-08 19:10:31,616 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-08 19:10:31,617 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-08 19:10:31,621 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-08 19:10:31,622 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-08 19:10:31,623 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-08 19:10:31,623 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-08 19:10:31,623 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-08 19:10:31,624 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-11-08 19:10:31,624 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-08 19:10:31,624 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-08 19:10:31,625 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-08 19:10:31,625 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-08 19:10:31,625 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-08 19:10:31,633 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-08 19:10:31,634 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-08 19:10:31,634 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 19:10:31,635 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-08 19:10:31,635 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-08 19:10:31,635 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-08 19:10:31,636 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-08 19:10:31,636 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-08 19:10:31,636 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-08 19:10:31,636 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-08 19:10:31,637 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-08 19:10:31,638 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-08 19:10:31,639 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_c0497a9a-e11c-4c50-9bd1-9ae638f8c190/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0497a9a-e11c-4c50-9bd1-9ae638f8c190/bin/uautomizer-verify-jihMAELWvX
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 265daba2b5ad7b4578f16c23ab641f7a5441c3a3894a2482737cba7b750ee6df
[2024-11-08 19:10:31,988 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-08 19:10:32,022 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-08 19:10:32,025 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-08 19:10:32,027 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-08 19:10:32,028 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-08 19:10:32,029 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0497a9a-e11c-4c50-9bd1-9ae638f8c190/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/goblint-regression/28-race_reach_11-ptr_racing.i
Unable to find full path for "g++"
[2024-11-08 19:10:34,157 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-11-08 19:10:34,469 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-08 19:10:34,470 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0497a9a-e11c-4c50-9bd1-9ae638f8c190/sv-benchmarks/c/goblint-regression/28-race_reach_11-ptr_racing.i
[2024-11-08 19:10:34,487 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0497a9a-e11c-4c50-9bd1-9ae638f8c190/bin/uautomizer-verify-jihMAELWvX/data/77e06dce6/0b36d31a1a544ad5800309197f325d84/FLAG16d1cbbfe
[2024-11-08 19:10:34,786 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0497a9a-e11c-4c50-9bd1-9ae638f8c190/bin/uautomizer-verify-jihMAELWvX/data/77e06dce6/0b36d31a1a544ad5800309197f325d84
[2024-11-08 19:10:34,791 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-08 19:10:34,795 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-08 19:10:34,796 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-08 19:10:34,799 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-08 19:10:34,806 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-08 19:10:34,807 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:10:34" (1/1) ...
[2024-11-08 19:10:34,808 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62cc5390 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:10:34, skipping insertion in model container
[2024-11-08 19:10:34,808 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:10:34" (1/1) ...
[2024-11-08 19:10:34,867 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-08 19:10:35,291 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0497a9a-e11c-4c50-9bd1-9ae638f8c190/sv-benchmarks/c/goblint-regression/28-race_reach_11-ptr_racing.i[30176,30189]
[2024-11-08 19:10:35,326 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-08 19:10:35,354 INFO L200 MainTranslator]: Completed pre-run
[2024-11-08 19:10:35,411 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0497a9a-e11c-4c50-9bd1-9ae638f8c190/sv-benchmarks/c/goblint-regression/28-race_reach_11-ptr_racing.i[30176,30189]
[2024-11-08 19:10:35,430 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-08 19:10:35,503 INFO L204 MainTranslator]: Completed translation
[2024-11-08 19:10:35,504 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:10:35 WrapperNode
[2024-11-08 19:10:35,504 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-08 19:10:35,505 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-08 19:10:35,506 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-08 19:10:35,507 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-08 19:10:35,513 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:10:35" (1/1) ...
[2024-11-08 19:10:35,524 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:10:35" (1/1) ...
[2024-11-08 19:10:35,544 INFO L138 Inliner]: procedures = 171, calls = 48, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 84
[2024-11-08 19:10:35,544 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-08 19:10:35,545 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-08 19:10:35,545 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-08 19:10:35,545 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-08 19:10:35,559 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:10:35" (1/1) ...
[2024-11-08 19:10:35,560 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:10:35" (1/1) ...
[2024-11-08 19:10:35,562 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:10:35" (1/1) ...
[2024-11-08 19:10:35,585 INFO L175 MemorySlicer]: Split 25 memory accesses to 6 slices as follows [2, 2, 5, 5, 5, 6]. 24 percent of accesses are in the largest equivalence class. The 18 initializations are split as follows [2, 0, 5, 5, 5, 1]. The 3 writes are split as follows [0, 1, 0, 0, 0, 2].
[2024-11-08 19:10:35,585 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:10:35" (1/1) ...
[2024-11-08 19:10:35,585 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:10:35" (1/1) ...
[2024-11-08 19:10:35,592 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:10:35" (1/1) ...
[2024-11-08 19:10:35,595 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:10:35" (1/1) ...
[2024-11-08 19:10:35,597 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:10:35" (1/1) ...
[2024-11-08 19:10:35,598 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:10:35" (1/1) ...
[2024-11-08 19:10:35,602 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-08 19:10:35,602 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-08 19:10:35,603 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-08 19:10:35,603 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-08 19:10:35,604 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:10:35" (1/1) ...
[2024-11-08 19:10:35,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 19:10:35,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0497a9a-e11c-4c50-9bd1-9ae638f8c190/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 19:10:35,641 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0497a9a-e11c-4c50-9bd1-9ae638f8c190/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-08 19:10:35,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0497a9a-e11c-4c50-9bd1-9ae638f8c190/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-08 19:10:35,681 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0
[2024-11-08 19:10:35,681 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1
[2024-11-08 19:10:35,681 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2
[2024-11-08 19:10:35,681 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3
[2024-11-08 19:10:35,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4
[2024-11-08 19:10:35,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5
[2024-11-08 19:10:35,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0
[2024-11-08 19:10:35,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1
[2024-11-08 19:10:35,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2
[2024-11-08 19:10:35,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3
[2024-11-08 19:10:35,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4
[2024-11-08 19:10:35,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5
[2024-11-08 19:10:35,685 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock
[2024-11-08 19:10:35,685 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-08 19:10:35,685 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2024-11-08 19:10:35,685 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun
[2024-11-08 19:10:35,685 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun
[2024-11-08 19:10:35,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-11-08 19:10:35,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-08 19:10:35,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1
[2024-11-08 19:10:35,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2
[2024-11-08 19:10:35,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3
[2024-11-08 19:10:35,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4
[2024-11-08 19:10:35,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5
[2024-11-08 19:10:35,689 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock
[2024-11-08 19:10:35,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-08 19:10:35,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-08 19:10:35,691 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 19:10:35,929 INFO L238 CfgBuilder]: Building ICFG
[2024-11-08 19:10:35,932 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-08 19:10:36,223 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program.
[2024-11-08 19:10:36,224 INFO L287 CfgBuilder]: Performing block encoding
[2024-11-08 19:10:36,464 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-08 19:10:36,467 INFO L316 CfgBuilder]: Removed 8 assume(true) statements.
[2024-11-08 19:10:36,468 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:10:36 BoogieIcfgContainer
[2024-11-08 19:10:36,468 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-08 19:10:36,470 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-08 19:10:36,475 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-08 19:10:36,478 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-08 19:10:36,478 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 07:10:34" (1/3) ...
[2024-11-08 19:10:36,483 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ee7c584 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:10:36, skipping insertion in model container
[2024-11-08 19:10:36,483 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:10:35" (2/3) ...
[2024-11-08 19:10:36,484 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ee7c584 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:10:36, skipping insertion in model container
[2024-11-08 19:10:36,484 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:10:36" (3/3) ...
[2024-11-08 19:10:36,485 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_11-ptr_racing.i
[2024-11-08 19:10:36,500 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-08 19:10:36,500 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-08 19:10:36,500 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2024-11-08 19:10:36,538 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions.
[2024-11-08 19:10:36,577 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 46 places, 55 transitions, 117 flow
[2024-11-08 19:10:36,628 INFO L124 PetriNetUnfolderBase]: 17/81 cut-off events.
[2024-11-08 19:10:36,628 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES.
[2024-11-08 19:10:36,632 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 81 events. 17/81 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 245 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 50. Up to 4 conditions per place.
[2024-11-08 19:10:36,632 INFO L82 GeneralOperation]: Start removeDead. Operand has 46 places, 55 transitions, 117 flow
[2024-11-08 19:10:36,635 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 45 places, 53 transitions, 110 flow
[2024-11-08 19:10:36,644 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-08 19:10:36,651 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@733c0e24, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-08 19:10:36,651 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-11-08 19:10:36,660 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2024-11-08 19:10:36,661 INFO L124 PetriNetUnfolderBase]: 3/29 cut-off events.
[2024-11-08 19:10:36,661 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-11-08 19:10:36,661 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-08 19:10:36,661 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1]
[2024-11-08 19:10:36,662 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-11-08 19:10:36,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 19:10:36,667 INFO L85 PathProgramCache]: Analyzing trace with hash 34381702, now seen corresponding path program 1 times
[2024-11-08 19:10:36,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 19:10:36,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144342951]
[2024-11-08 19:10:36,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 19:10:36,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 19:10:36,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-08 19:10:36,820 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-08 19:10:36,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-08 19:10:36,868 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-11-08 19:10:36,870 INFO L325 BasicCegarLoop]: Counterexample is feasible
[2024-11-08 19:10:36,871 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-11-08 19:10:36,873 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-11-08 19:10:36,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-08 19:10:36,874 INFO L407 BasicCegarLoop]: Path program histogram: [1]
[2024-11-08 19:10:36,877 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-11-08 19:10:36,877 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances.
[2024-11-08 19:10:36,901 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions.
[2024-11-08 19:10:36,904 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 66 places, 80 transitions, 176 flow
[2024-11-08 19:10:36,935 INFO L124 PetriNetUnfolderBase]: 31/142 cut-off events.
[2024-11-08 19:10:36,936 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES.
[2024-11-08 19:10:36,938 INFO L83 FinitePrefix]: Finished finitePrefix Result has 154 conditions, 142 events. 31/142 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 520 event pairs, 0 based on Foata normal form. 0/104 useless extension candidates. Maximal degree in co-relation 85. Up to 8 conditions per place.
[2024-11-08 19:10:36,938 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 80 transitions, 176 flow
[2024-11-08 19:10:36,940 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 66 places, 80 transitions, 176 flow
[2024-11-08 19:10:36,941 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-08 19:10:36,942 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@733c0e24, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-08 19:10:36,943 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-11-08 19:10:36,951 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2024-11-08 19:10:36,951 INFO L124 PetriNetUnfolderBase]: 4/33 cut-off events.
[2024-11-08 19:10:36,951 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES.
[2024-11-08 19:10:36,952 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-08 19:10:36,952 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 19:10:36,952 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-11-08 19:10:36,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 19:10:36,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1037674042, now seen corresponding path program 1 times
[2024-11-08 19:10:36,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 19:10:36,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383287992]
[2024-11-08 19:10:36,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 19:10:36,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 19:10:36,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:10:37,137 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 19:10:37,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 19:10:37,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383287992]
[2024-11-08 19:10:37,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383287992] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 19:10:37,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 19:10:37,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 19:10:37,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407303536]
[2024-11-08 19:10:37,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 19:10:37,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 19:10:37,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 19:10:37,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 19:10:37,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 19:10:37,193 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 80
[2024-11-08 19:10:37,207 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 80 transitions, 176 flow. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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 19:10:37,207 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-08 19:10:37,207 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 80
[2024-11-08 19:10:37,209 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-08 19:10:38,272 INFO L124 PetriNetUnfolderBase]: 3386/6641 cut-off events.
[2024-11-08 19:10:38,272 INFO L125 PetriNetUnfolderBase]: For 56/56 co-relation queries the response was YES.
[2024-11-08 19:10:38,291 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11907 conditions, 6641 events. 3386/6641 cut-off events. For 56/56 co-relation queries the response was YES. Maximal size of possible extension queue 201. Compared 47838 event pairs, 2806 based on Foata normal form. 1528/7788 useless extension candidates. Maximal degree in co-relation 9003. Up to 5191 conditions per place.
[2024-11-08 19:10:38,311 INFO L140 encePairwiseOnDemand]: 61/80 looper letters, 41 selfloop transitions, 2 changer transitions 14/77 dead transitions.
[2024-11-08 19:10:38,311 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 77 transitions, 274 flow
[2024-11-08 19:10:38,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-08 19:10:38,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-11-08 19:10:38,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 150 transitions.
[2024-11-08 19:10:38,322 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.625
[2024-11-08 19:10:38,324 INFO L175 Difference]: Start difference. First operand has 66 places, 80 transitions, 176 flow. Second operand 3 states and 150 transitions.
[2024-11-08 19:10:38,325 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 77 transitions, 274 flow
[2024-11-08 19:10:38,328 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 77 transitions, 274 flow, removed 0 selfloop flow, removed 0 redundant places.
[2024-11-08 19:10:38,332 INFO L231 Difference]: Finished difference. Result has 69 places, 52 transitions, 126 flow
[2024-11-08 19:10:38,334 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=126, PETRI_PLACES=69, PETRI_TRANSITIONS=52}
[2024-11-08 19:10:38,337 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, 3 predicate places.
[2024-11-08 19:10:38,338 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 52 transitions, 126 flow
[2024-11-08 19:10:38,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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 19:10:38,338 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-08 19:10:38,339 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 1, 1, 1, 1]
[2024-11-08 19:10:38,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-08 19:10:38,339 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-11-08 19:10:38,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 19:10:38,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1591182062, now seen corresponding path program 1 times
[2024-11-08 19:10:38,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 19:10:38,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283750923]
[2024-11-08 19:10:38,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 19:10:38,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 19:10:38,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-08 19:10:38,371 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-08 19:10:38,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-08 19:10:38,412 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-11-08 19:10:38,413 INFO L325 BasicCegarLoop]: Counterexample is feasible
[2024-11-08 19:10:38,413 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-11-08 19:10:38,414 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-11-08 19:10:38,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-08 19:10:38,414 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1]
[2024-11-08 19:10:38,415 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-11-08 19:10:38,415 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances.
[2024-11-08 19:10:38,460 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions.
[2024-11-08 19:10:38,466 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 86 places, 105 transitions, 237 flow
[2024-11-08 19:10:38,491 INFO L124 PetriNetUnfolderBase]: 50/220 cut-off events.
[2024-11-08 19:10:38,492 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES.
[2024-11-08 19:10:38,495 INFO L83 FinitePrefix]: Finished finitePrefix Result has 245 conditions, 220 events. 50/220 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 863 event pairs, 1 based on Foata normal form. 0/162 useless extension candidates. Maximal degree in co-relation 153. Up to 16 conditions per place.
[2024-11-08 19:10:38,495 INFO L82 GeneralOperation]: Start removeDead. Operand has 86 places, 105 transitions, 237 flow
[2024-11-08 19:10:38,498 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 86 places, 105 transitions, 237 flow
[2024-11-08 19:10:38,500 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-08 19:10:38,502 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@733c0e24, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-08 19:10:38,503 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-11-08 19:10:38,508 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2024-11-08 19:10:38,508 INFO L124 PetriNetUnfolderBase]: 4/33 cut-off events.
[2024-11-08 19:10:38,508 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES.
[2024-11-08 19:10:38,508 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-08 19:10:38,509 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 19:10:38,509 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-11-08 19:10:38,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 19:10:38,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1725471313, now seen corresponding path program 1 times
[2024-11-08 19:10:38,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 19:10:38,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653937386]
[2024-11-08 19:10:38,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 19:10:38,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 19:10:38,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:10:38,647 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 19:10:38,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 19:10:38,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653937386]
[2024-11-08 19:10:38,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653937386] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 19:10:38,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 19:10:38,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 19:10:38,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458037351]
[2024-11-08 19:10:38,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 19:10:38,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 19:10:38,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 19:10:38,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 19:10:38,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 19:10:38,664 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 105
[2024-11-08 19:10:38,664 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 105 transitions, 237 flow. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 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 19:10:38,665 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-08 19:10:38,665 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 105
[2024-11-08 19:10:38,665 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-08 19:10:49,769 INFO L124 PetriNetUnfolderBase]: 57148/93981 cut-off events.
[2024-11-08 19:10:49,770 INFO L125 PetriNetUnfolderBase]: For 1470/1470 co-relation queries the response was YES.
[2024-11-08 19:10:49,992 INFO L83 FinitePrefix]: Finished finitePrefix Result has 173023 conditions, 93981 events. 57148/93981 cut-off events. For 1470/1470 co-relation queries the response was YES. Maximal size of possible extension queue 2171. Compared 829594 event pairs, 35621 based on Foata normal form. 24692/114661 useless extension candidates. Maximal degree in co-relation 11972. Up to 78074 conditions per place.
[2024-11-08 19:10:50,255 INFO L140 encePairwiseOnDemand]: 80/105 looper letters, 52 selfloop transitions, 2 changer transitions 15/96 dead transitions.
[2024-11-08 19:10:50,255 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 96 transitions, 347 flow
[2024-11-08 19:10:50,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-08 19:10:50,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-11-08 19:10:50,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 189 transitions.
[2024-11-08 19:10:50,258 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6
[2024-11-08 19:10:50,258 INFO L175 Difference]: Start difference. First operand has 86 places, 105 transitions, 237 flow. Second operand 3 states and 189 transitions.
[2024-11-08 19:10:50,259 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 96 transitions, 347 flow
[2024-11-08 19:10:50,266 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 96 transitions, 347 flow, removed 0 selfloop flow, removed 0 redundant places.
[2024-11-08 19:10:50,270 INFO L231 Difference]: Finished difference. Result has 89 places, 70 transitions, 170 flow
[2024-11-08 19:10:50,270 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=195, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=170, PETRI_PLACES=89, PETRI_TRANSITIONS=70}
[2024-11-08 19:10:50,271 INFO L277 CegarLoopForPetriNet]: 86 programPoint places, 3 predicate places.
[2024-11-08 19:10:50,272 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 70 transitions, 170 flow
[2024-11-08 19:10:50,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 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 19:10:50,273 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-08 19:10:50,273 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 19:10:50,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-08 19:10:50,275 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-11-08 19:10:50,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 19:10:50,276 INFO L85 PathProgramCache]: Analyzing trace with hash -31382241, now seen corresponding path program 1 times
[2024-11-08 19:10:50,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 19:10:50,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324318621]
[2024-11-08 19:10:50,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 19:10:50,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 19:10:50,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:10:50,419 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 19:10:50,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 19:10:50,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324318621]
[2024-11-08 19:10:50,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324318621] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 19:10:50,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1884745003]
[2024-11-08 19:10:50,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 19:10:50,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 19:10:50,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0497a9a-e11c-4c50-9bd1-9ae638f8c190/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 19:10:50,424 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0497a9a-e11c-4c50-9bd1-9ae638f8c190/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 19:10:50,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0497a9a-e11c-4c50-9bd1-9ae638f8c190/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-08 19:10:50,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:10:50,545 INFO L255 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-08 19:10:50,547 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 19:10:50,592 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 19:10:50,592 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 19:10:50,621 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 19:10:50,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1884745003] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 19:10:50,622 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 19:10:50,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6
[2024-11-08 19:10:50,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594253878]
[2024-11-08 19:10:50,623 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 19:10:50,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-08 19:10:50,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 19:10:50,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-08 19:10:50,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42
[2024-11-08 19:10:50,633 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 105
[2024-11-08 19:10:50,634 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 70 transitions, 170 flow. Second operand has 7 states, 7 states have (on average 34.0) internal successors, (238), 7 states have internal predecessors, (238), 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 19:10:50,634 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-08 19:10:50,634 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 105
[2024-11-08 19:10:50,634 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-08 19:10:53,472 INFO L124 PetriNetUnfolderBase]: 14110/22455 cut-off events.
[2024-11-08 19:10:53,473 INFO L125 PetriNetUnfolderBase]: For 6241/6241 co-relation queries the response was YES.
[2024-11-08 19:10:53,530 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44421 conditions, 22455 events. 14110/22455 cut-off events. For 6241/6241 co-relation queries the response was YES. Maximal size of possible extension queue 635. Compared 165086 event pairs, 1248 based on Foata normal form. 2926/24643 useless extension candidates. Maximal degree in co-relation 36084. Up to 14883 conditions per place.
[2024-11-08 19:10:53,624 INFO L140 encePairwiseOnDemand]: 101/105 looper letters, 101 selfloop transitions, 4 changer transitions 0/127 dead transitions.
[2024-11-08 19:10:53,625 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 127 transitions, 492 flow
[2024-11-08 19:10:53,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-08 19:10:53,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2024-11-08 19:10:53,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 297 transitions.
[2024-11-08 19:10:53,632 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4714285714285714
[2024-11-08 19:10:53,632 INFO L175 Difference]: Start difference. First operand has 89 places, 70 transitions, 170 flow. Second operand 6 states and 297 transitions.
[2024-11-08 19:10:53,632 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 127 transitions, 492 flow
[2024-11-08 19:10:53,639 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 127 transitions, 488 flow, removed 1 selfloop flow, removed 1 redundant places.
[2024-11-08 19:10:53,641 INFO L231 Difference]: Finished difference. Result has 73 places, 61 transitions, 154 flow
[2024-11-08 19:10:53,642 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=154, PETRI_PLACES=73, PETRI_TRANSITIONS=61}
[2024-11-08 19:10:53,643 INFO L277 CegarLoopForPetriNet]: 86 programPoint places, -13 predicate places.
[2024-11-08 19:10:53,645 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 61 transitions, 154 flow
[2024-11-08 19:10:53,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 34.0) internal successors, (238), 7 states have internal predecessors, (238), 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 19:10:53,645 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-08 19:10:53,646 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1]
[2024-11-08 19:10:53,671 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0497a9a-e11c-4c50-9bd1-9ae638f8c190/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-08 19:10:53,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0497a9a-e11c-4c50-9bd1-9ae638f8c190/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 19:10:53,847 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-11-08 19:10:53,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 19:10:53,847 INFO L85 PathProgramCache]: Analyzing trace with hash 751534213, now seen corresponding path program 1 times
[2024-11-08 19:10:53,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 19:10:53,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590822392]
[2024-11-08 19:10:53,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 19:10:53,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 19:10:53,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-08 19:10:53,885 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-08 19:10:53,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-08 19:10:53,915 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-11-08 19:10:53,915 INFO L325 BasicCegarLoop]: Counterexample is feasible
[2024-11-08 19:10:53,915 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-11-08 19:10:53,916 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-11-08 19:10:53,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-08 19:10:53,917 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2024-11-08 19:10:53,918 WARN L244 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-11-08 19:10:53,918 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances.
[2024-11-08 19:10:53,951 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions.
[2024-11-08 19:10:53,953 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 106 places, 130 transitions, 300 flow
[2024-11-08 19:10:53,987 INFO L124 PetriNetUnfolderBase]: 81/334 cut-off events.
[2024-11-08 19:10:53,988 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES.
[2024-11-08 19:10:53,991 INFO L83 FinitePrefix]: Finished finitePrefix Result has 385 conditions, 334 events. 81/334 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1383 event pairs, 6 based on Foata normal form. 0/248 useless extension candidates. Maximal degree in co-relation 244. Up to 32 conditions per place.
[2024-11-08 19:10:53,991 INFO L82 GeneralOperation]: Start removeDead. Operand has 106 places, 130 transitions, 300 flow
[2024-11-08 19:10:53,994 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 106 places, 130 transitions, 300 flow
[2024-11-08 19:10:53,996 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-08 19:10:53,997 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@733c0e24, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-08 19:10:53,997 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-11-08 19:10:54,001 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2024-11-08 19:10:54,002 INFO L124 PetriNetUnfolderBase]: 4/33 cut-off events.
[2024-11-08 19:10:54,003 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES.
[2024-11-08 19:10:54,003 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-08 19:10:54,003 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 19:10:54,003 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-11-08 19:10:54,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 19:10:54,005 INFO L85 PathProgramCache]: Analyzing trace with hash 1717937457, now seen corresponding path program 1 times
[2024-11-08 19:10:54,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 19:10:54,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306925190]
[2024-11-08 19:10:54,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 19:10:54,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 19:10:54,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:10:54,057 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 19:10:54,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 19:10:54,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306925190]
[2024-11-08 19:10:54,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306925190] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 19:10:54,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 19:10:54,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 19:10:54,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381111373]
[2024-11-08 19:10:54,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 19:10:54,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 19:10:54,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 19:10:54,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 19:10:54,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 19:10:54,070 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 130
[2024-11-08 19:10:54,071 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 130 transitions, 300 flow. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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 19:10:54,071 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-08 19:10:54,072 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 130
[2024-11-08 19:10:54,072 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand