./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 d790fecc
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb6240de-61bd-4218-aac1-458810a0f0c9/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb6240de-61bd-4218-aac1-458810a0f0c9/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb6240de-61bd-4218-aac1-458810a0f0c9/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb6240de-61bd-4218-aac1-458810a0f0c9/bin/uautomizer-verify-aQ6SnzHsRB/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_bb6240de-61bd-4218-aac1-458810a0f0c9/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb6240de-61bd-4218-aac1-458810a0f0c9/bin/uautomizer-verify-aQ6SnzHsRB --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 0.3.0-dev-d790fec
[2024-11-28 04:47:29,320 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-28 04:47:29,427 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb6240de-61bd-4218-aac1-458810a0f0c9/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-28 04:47:29,434 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-28 04:47:29,434 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-28 04:47:29,465 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-28 04:47:29,466 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-28 04:47:29,466 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-28 04:47:29,466 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-28 04:47:29,466 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-28 04:47:29,467 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-28 04:47:29,467 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-28 04:47:29,467 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-28 04:47:29,468 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-28 04:47:29,468 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-28 04:47:29,468 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-28 04:47:29,468 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-28 04:47:29,468 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-28 04:47:29,469 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-28 04:47:29,469 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-28 04:47:29,469 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-28 04:47:29,469 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-28 04:47:29,469 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-28 04:47:29,469 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-28 04:47:29,470 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-28 04:47:29,470 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-28 04:47:29,470 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-11-28 04:47:29,470 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-28 04:47:29,470 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-11-28 04:47:29,471 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-28 04:47:29,471 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-28 04:47:29,471 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-28 04:47:29,471 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-28 04:47:29,471 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-28 04:47:29,472 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-28 04:47:29,472 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-28 04:47:29,472 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-28 04:47:29,472 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-28 04:47:29,472 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-28 04:47:29,472 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-28 04:47:29,473 INFO L153 SettingsManager]: * Compute procedure contracts=false
[2024-11-28 04:47:29,473 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-28 04:47:29,473 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-28 04:47:29,473 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-28 04:47:29,473 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-28 04:47:29,473 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-28 04:47:29,474 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-28 04:47:29,474 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-28 04:47:29,474 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC
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_bb6240de-61bd-4218-aac1-458810a0f0c9/bin/uautomizer-verify-aQ6SnzHsRB
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
[2024-11-28 04:47:29,907 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-28 04:47:29,924 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-28 04:47:29,927 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-28 04:47:29,930 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-28 04:47:29,931 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-28 04:47:29,933 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb6240de-61bd-4218-aac1-458810a0f0c9/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/goblint-regression/28-race_reach_11-ptr_racing.i
[2024-11-28 04:47:33,616 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb6240de-61bd-4218-aac1-458810a0f0c9/bin/uautomizer-verify-aQ6SnzHsRB/data/d96deb781/2846f6fb9ca44f16b30931a04eae5582/FLAGd19a43eef
[2024-11-28 04:47:34,122 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-28 04:47:34,124 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb6240de-61bd-4218-aac1-458810a0f0c9/sv-benchmarks/c/goblint-regression/28-race_reach_11-ptr_racing.i
[2024-11-28 04:47:34,149 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb6240de-61bd-4218-aac1-458810a0f0c9/bin/uautomizer-verify-aQ6SnzHsRB/data/d96deb781/2846f6fb9ca44f16b30931a04eae5582/FLAGd19a43eef
[2024-11-28 04:47:34,178 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb6240de-61bd-4218-aac1-458810a0f0c9/bin/uautomizer-verify-aQ6SnzHsRB/data/d96deb781/2846f6fb9ca44f16b30931a04eae5582
[2024-11-28 04:47:34,182 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-28 04:47:34,184 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-28 04:47:34,188 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-28 04:47:34,189 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-28 04:47:34,196 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-28 04:47:34,197 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:47:34" (1/1) ...
[2024-11-28 04:47:34,200 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a55820 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:34, skipping insertion in model container
[2024-11-28 04:47:34,201 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:47:34" (1/1) ...
[2024-11-28 04:47:34,259 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-28 04:47:34,706 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_bb6240de-61bd-4218-aac1-458810a0f0c9/sv-benchmarks/c/goblint-regression/28-race_reach_11-ptr_racing.i[30176,30189]
[2024-11-28 04:47:34,738 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-28 04:47:34,762 INFO L200 MainTranslator]: Completed pre-run
[2024-11-28 04:47:34,811 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_bb6240de-61bd-4218-aac1-458810a0f0c9/sv-benchmarks/c/goblint-regression/28-race_reach_11-ptr_racing.i[30176,30189]
[2024-11-28 04:47:34,822 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-28 04:47:34,869 INFO L204 MainTranslator]: Completed translation
[2024-11-28 04:47:34,870 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:34 WrapperNode
[2024-11-28 04:47:34,870 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-28 04:47:34,872 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-28 04:47:34,872 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-28 04:47:34,872 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-28 04:47:34,881 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:34" (1/1) ...
[2024-11-28 04:47:34,896 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:34" (1/1) ...
[2024-11-28 04:47:34,920 INFO L138 Inliner]: procedures = 171, calls = 48, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 84
[2024-11-28 04:47:34,921 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-28 04:47:34,921 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-28 04:47:34,922 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-28 04:47:34,922 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-28 04:47:34,933 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:34" (1/1) ...
[2024-11-28 04:47:34,934 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:34" (1/1) ...
[2024-11-28 04:47:34,941 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:34" (1/1) ...
[2024-11-28 04:47:34,977 INFO L175 MemorySlicer]: Split 25 memory accesses to 6 slices as follows [2, 5, 6, 5, 5, 2]. 24 percent of accesses are in the largest equivalence class. The 18 initializations are split as follows [2, 5, 1, 5, 5, 0]. The 3 writes are split as follows [0, 0, 2, 0, 0, 1].
[2024-11-28 04:47:34,977 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:34" (1/1) ...
[2024-11-28 04:47:34,978 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:34" (1/1) ...
[2024-11-28 04:47:34,994 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:34" (1/1) ...
[2024-11-28 04:47:34,998 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:34" (1/1) ...
[2024-11-28 04:47:35,008 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:34" (1/1) ...
[2024-11-28 04:47:35,010 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:34" (1/1) ...
[2024-11-28 04:47:35,015 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:34" (1/1) ...
[2024-11-28 04:47:35,018 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-28 04:47:35,023 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-28 04:47:35,023 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-28 04:47:35,023 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-28 04:47:35,024 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:34" (1/1) ...
[2024-11-28 04:47:35,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-28 04:47:35,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb6240de-61bd-4218-aac1-458810a0f0c9/bin/uautomizer-verify-aQ6SnzHsRB/z3
[2024-11-28 04:47:35,086 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb6240de-61bd-4218-aac1-458810a0f0c9/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-28 04:47:35,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb6240de-61bd-4218-aac1-458810a0f0c9/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-28 04:47:35,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0
[2024-11-28 04:47:35,130 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1
[2024-11-28 04:47:35,130 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2
[2024-11-28 04:47:35,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3
[2024-11-28 04:47:35,132 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4
[2024-11-28 04:47:35,132 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5
[2024-11-28 04:47:35,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0
[2024-11-28 04:47:35,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1
[2024-11-28 04:47:35,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2
[2024-11-28 04:47:35,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3
[2024-11-28 04:47:35,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4
[2024-11-28 04:47:35,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5
[2024-11-28 04:47:35,133 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock
[2024-11-28 04:47:35,133 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-28 04:47:35,133 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2024-11-28 04:47:35,134 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun
[2024-11-28 04:47:35,134 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun
[2024-11-28 04:47:35,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-11-28 04:47:35,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-28 04:47:35,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1
[2024-11-28 04:47:35,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2
[2024-11-28 04:47:35,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3
[2024-11-28 04:47:35,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4
[2024-11-28 04:47:35,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5
[2024-11-28 04:47:35,136 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock
[2024-11-28 04:47:35,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-28 04:47:35,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-28 04:47:35,140 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement.
[2024-11-28 04:47:35,377 INFO L234 CfgBuilder]: Building ICFG
[2024-11-28 04:47:35,380 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-28 04:47:35,741 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program.
[2024-11-28 04:47:35,742 INFO L283 CfgBuilder]: Performing block encoding
[2024-11-28 04:47:36,062 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-28 04:47:36,063 INFO L312 CfgBuilder]: Removed 6 assume(true) statements.
[2024-11-28 04:47:36,063 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:47:36 BoogieIcfgContainer
[2024-11-28 04:47:36,064 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-28 04:47:36,067 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-28 04:47:36,067 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-28 04:47:36,074 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-28 04:47:36,074 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:47:34" (1/3) ...
[2024-11-28 04:47:36,075 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f00a2fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:47:36, skipping insertion in model container
[2024-11-28 04:47:36,076 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:34" (2/3) ...
[2024-11-28 04:47:36,076 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f00a2fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:47:36, skipping insertion in model container
[2024-11-28 04:47:36,076 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:47:36" (3/3) ...
[2024-11-28 04:47:36,078 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_11-ptr_racing.i
[2024-11-28 04:47:36,099 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-28 04:47:36,101 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_11-ptr_racing.i that has 2 procedures, 39 locations, 1 initial locations, 6 loop locations, and 1 error locations.
[2024-11-28 04:47:36,103 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2024-11-28 04:47:36,173 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions.
[2024-11-28 04:47:36,251 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 42 places, 49 transitions, 105 flow
[2024-11-28 04:47:36,329 INFO L124 PetriNetUnfolderBase]: 13/69 cut-off events.
[2024-11-28 04:47:36,336 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES.
[2024-11-28 04:47:36,344 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74 conditions, 69 events. 13/69 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 223 event pairs, 0 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 44. Up to 4 conditions per place.
[2024-11-28 04:47:36,344 INFO L82 GeneralOperation]: Start removeDead. Operand has 42 places, 49 transitions, 105 flow
[2024-11-28 04:47:36,351 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 41 places, 47 transitions, 98 flow
[2024-11-28 04:47:36,372 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-28 04:47:36,387 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;@230b55f5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-28 04:47:36,387 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-11-28 04:47:36,396 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2024-11-28 04:47:36,396 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events.
[2024-11-28 04:47:36,396 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-11-28 04:47:36,396 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-28 04:47:36,397 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1]
[2024-11-28 04:47:36,398 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-11-28 04:47:36,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-28 04:47:36,408 INFO L85 PathProgramCache]: Analyzing trace with hash 2116478916, now seen corresponding path program 1 times
[2024-11-28 04:47:36,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-28 04:47:36,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933046461]
[2024-11-28 04:47:36,420 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-28 04:47:36,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-28 04:47:36,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-28 04:47:36,634 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-28 04:47:36,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-28 04:47:36,718 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-11-28 04:47:36,722 INFO L340 BasicCegarLoop]: Counterexample is feasible
[2024-11-28 04:47:36,724 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-11-28 04:47:36,727 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-11-28 04:47:36,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-28 04:47:36,728 INFO L422 BasicCegarLoop]: Path program histogram: [1]
[2024-11-28 04:47:36,737 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-11-28 04:47:36,740 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances.
[2024-11-28 04:47:36,779 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions.
[2024-11-28 04:47:36,784 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 62 places, 74 transitions, 164 flow
[2024-11-28 04:47:36,852 INFO L124 PetriNetUnfolderBase]: 24/121 cut-off events.
[2024-11-28 04:47:36,852 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES.
[2024-11-28 04:47:36,854 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133 conditions, 121 events. 24/121 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 485 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 73. Up to 6 conditions per place.
[2024-11-28 04:47:36,855 INFO L82 GeneralOperation]: Start removeDead. Operand has 62 places, 74 transitions, 164 flow
[2024-11-28 04:47:36,856 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 74 transitions, 164 flow
[2024-11-28 04:47:36,862 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-28 04:47:36,863 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;@230b55f5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-28 04:47:36,863 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-11-28 04:47:36,883 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2024-11-28 04:47:36,884 INFO L124 PetriNetUnfolderBase]: 1/37 cut-off events.
[2024-11-28 04:47:36,884 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES.
[2024-11-28 04:47:36,888 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-28 04:47:36,888 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-28 04:47:36,888 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-11-28 04:47:36,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-28 04:47:36,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1014663217, now seen corresponding path program 1 times
[2024-11-28 04:47:36,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-28 04:47:36,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962665775]
[2024-11-28 04:47:36,889 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-28 04:47:36,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-28 04:47:36,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-28 04:47:37,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-28 04:47:37,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-28 04:47:37,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962665775]
[2024-11-28 04:47:37,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962665775] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-28 04:47:37,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-28 04:47:37,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-28 04:47:37,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978896628]
[2024-11-28 04:47:37,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-28 04:47:37,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-28 04:47:37,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-28 04:47:37,212 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-28 04:47:37,213 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-28 04:47:37,214 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 74
[2024-11-28 04:47:37,218 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 74 transitions, 164 flow. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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)
[2024-11-28 04:47:37,219 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-28 04:47:37,219 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 74
[2024-11-28 04:47:37,221 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-28 04:47:38,757 INFO L124 PetriNetUnfolderBase]: 2932/5773 cut-off events.
[2024-11-28 04:47:38,758 INFO L125 PetriNetUnfolderBase]: For 59/59 co-relation queries the response was YES.
[2024-11-28 04:47:38,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10545 conditions, 5773 events. 2932/5773 cut-off events. For 59/59 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 40710 event pairs, 2600 based on Foata normal form. 1437/6794 useless extension candidates. Maximal degree in co-relation 7066. Up to 4697 conditions per place.
[2024-11-28 04:47:38,800 INFO L140 encePairwiseOnDemand]: 56/74 looper letters, 39 selfloop transitions, 2 changer transitions 11/71 dead transitions.
[2024-11-28 04:47:38,801 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 71 transitions, 258 flow
[2024-11-28 04:47:38,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-28 04:47:38,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-11-28 04:47:38,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 135 transitions.
[2024-11-28 04:47:38,826 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6081081081081081
[2024-11-28 04:47:38,828 INFO L175 Difference]: Start difference. First operand has 62 places, 74 transitions, 164 flow. Second operand 3 states and 135 transitions.
[2024-11-28 04:47:38,829 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 71 transitions, 258 flow
[2024-11-28 04:47:38,839 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 71 transitions, 258 flow, removed 0 selfloop flow, removed 0 redundant places.
[2024-11-28 04:47:38,843 INFO L231 Difference]: Finished difference. Result has 65 places, 49 transitions, 118 flow
[2024-11-28 04:47:38,846 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=118, PETRI_PLACES=65, PETRI_TRANSITIONS=49}
[2024-11-28 04:47:38,851 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 3 predicate places.
[2024-11-28 04:47:38,851 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 49 transitions, 118 flow
[2024-11-28 04:47:38,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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)
[2024-11-28 04:47:38,852 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-28 04:47:38,852 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1]
[2024-11-28 04:47:38,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-28 04:47:38,855 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-11-28 04:47:38,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-28 04:47:38,857 INFO L85 PathProgramCache]: Analyzing trace with hash -501449843, now seen corresponding path program 1 times
[2024-11-28 04:47:38,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-28 04:47:38,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805400883]
[2024-11-28 04:47:38,857 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-28 04:47:38,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-28 04:47:38,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-28 04:47:38,926 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-28 04:47:38,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-28 04:47:38,978 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-11-28 04:47:38,979 INFO L340 BasicCegarLoop]: Counterexample is feasible
[2024-11-28 04:47:38,979 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-11-28 04:47:38,979 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-11-28 04:47:38,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-28 04:47:38,979 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1]
[2024-11-28 04:47:38,984 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-11-28 04:47:38,984 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances.
[2024-11-28 04:47:39,039 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions.
[2024-11-28 04:47:39,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 82 places, 99 transitions, 225 flow
[2024-11-28 04:47:39,076 INFO L124 PetriNetUnfolderBase]: 38/184 cut-off events.
[2024-11-28 04:47:39,077 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES.
[2024-11-28 04:47:39,080 INFO L83 FinitePrefix]: Finished finitePrefix Result has 209 conditions, 184 events. 38/184 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 790 event pairs, 1 based on Foata normal form. 0/138 useless extension candidates. Maximal degree in co-relation 132. Up to 12 conditions per place.
[2024-11-28 04:47:39,080 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 99 transitions, 225 flow
[2024-11-28 04:47:39,082 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 82 places, 99 transitions, 225 flow
[2024-11-28 04:47:39,084 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-28 04:47:39,086 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;@230b55f5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-28 04:47:39,086 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-11-28 04:47:39,094 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2024-11-28 04:47:39,095 INFO L124 PetriNetUnfolderBase]: 1/37 cut-off events.
[2024-11-28 04:47:39,095 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES.
[2024-11-28 04:47:39,095 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-28 04:47:39,095 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-28 04:47:39,095 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-11-28 04:47:39,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-28 04:47:39,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1943459407, now seen corresponding path program 1 times
[2024-11-28 04:47:39,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-28 04:47:39,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012484401]
[2024-11-28 04:47:39,096 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-28 04:47:39,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-28 04:47:39,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-28 04:47:39,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-28 04:47:39,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-28 04:47:39,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012484401]
[2024-11-28 04:47:39,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012484401] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-28 04:47:39,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-28 04:47:39,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-28 04:47:39,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768839970]
[2024-11-28 04:47:39,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-28 04:47:39,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-28 04:47:39,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-28 04:47:39,258 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-28 04:47:39,258 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-28 04:47:39,258 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 99
[2024-11-28 04:47:39,259 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 99 transitions, 225 flow. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-28 04:47:39,259 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-28 04:47:39,259 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 99
[2024-11-28 04:47:39,260 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-28 04:47:49,724 INFO L124 PetriNetUnfolderBase]: 51087/83322 cut-off events.
[2024-11-28 04:47:49,725 INFO L125 PetriNetUnfolderBase]: For 1313/1313 co-relation queries the response was YES.
[2024-11-28 04:47:49,913 INFO L83 FinitePrefix]: Finished finitePrefix Result has 155578 conditions, 83322 events. 51087/83322 cut-off events. For 1313/1313 co-relation queries the response was YES. Maximal size of possible extension queue 1973. Compared 711661 event pairs, 47355 based on Foata normal form. 22878/101101 useless extension candidates. Maximal degree in co-relation 75615. Up to 71288 conditions per place.
[2024-11-28 04:47:50,125 INFO L140 encePairwiseOnDemand]: 75/99 looper letters, 50 selfloop transitions, 2 changer transitions 12/90 dead transitions.
[2024-11-28 04:47:50,125 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 90 transitions, 331 flow
[2024-11-28 04:47:50,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-28 04:47:50,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-11-28 04:47:50,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 174 transitions.
[2024-11-28 04:47:50,131 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5858585858585859
[2024-11-28 04:47:50,131 INFO L175 Difference]: Start difference. First operand has 82 places, 99 transitions, 225 flow. Second operand 3 states and 174 transitions.
[2024-11-28 04:47:50,132 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 90 transitions, 331 flow
[2024-11-28 04:47:50,142 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 90 transitions, 331 flow, removed 0 selfloop flow, removed 0 redundant places.
[2024-11-28 04:47:50,145 INFO L231 Difference]: Finished difference. Result has 85 places, 67 transitions, 162 flow
[2024-11-28 04:47:50,145 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=183, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=162, PETRI_PLACES=85, PETRI_TRANSITIONS=67}
[2024-11-28 04:47:50,146 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 3 predicate places.
[2024-11-28 04:47:50,147 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 67 transitions, 162 flow
[2024-11-28 04:47:50,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-28 04:47:50,147 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-28 04:47:50,147 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-28 04:47:50,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-28 04:47:50,148 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-11-28 04:47:50,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-28 04:47:50,149 INFO L85 PathProgramCache]: Analyzing trace with hash -2123836331, now seen corresponding path program 1 times
[2024-11-28 04:47:50,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-28 04:47:50,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582029918]
[2024-11-28 04:47:50,149 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-28 04:47:50,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-28 04:47:50,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-28 04:47:50,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-28 04:47:50,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-28 04:47:50,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582029918]
[2024-11-28 04:47:50,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582029918] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-28 04:47:50,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-28 04:47:50,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-28 04:47:50,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156697941]
[2024-11-28 04:47:50,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-28 04:47:50,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-28 04:47:50,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-28 04:47:50,240 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-28 04:47:50,240 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-28 04:47:50,240 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 99
[2024-11-28 04:47:50,241 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 67 transitions, 162 flow. Second operand has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 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)
[2024-11-28 04:47:50,241 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-28 04:47:50,241 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 99
[2024-11-28 04:47:50,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-28 04:47:54,461 INFO L124 PetriNetUnfolderBase]: 25650/43083 cut-off events.
[2024-11-28 04:47:54,462 INFO L125 PetriNetUnfolderBase]: For 3321/3321 co-relation queries the response was YES.
[2024-11-28 04:47:54,686 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82385 conditions, 43083 events. 25650/43083 cut-off events. For 3321/3321 co-relation queries the response was YES. Maximal size of possible extension queue 1252. Compared 363987 event pairs, 9064 based on Foata normal form. 11/42012 useless extension candidates. Maximal degree in co-relation 7653. Up to 35564 conditions per place.
[2024-11-28 04:47:54,828 INFO L140 encePairwiseOnDemand]: 96/99 looper letters, 71 selfloop transitions, 3 changer transitions 0/100 dead transitions.
[2024-11-28 04:47:54,828 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 100 transitions, 378 flow
[2024-11-28 04:47:54,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-28 04:47:54,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-11-28 04:47:54,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 187 transitions.
[2024-11-28 04:47:54,833 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4722222222222222
[2024-11-28 04:47:54,833 INFO L175 Difference]: Start difference. First operand has 85 places, 67 transitions, 162 flow. Second operand 4 states and 187 transitions.
[2024-11-28 04:47:54,833 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 100 transitions, 378 flow
[2024-11-28 04:47:54,838 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 100 transitions, 374 flow, removed 1 selfloop flow, removed 1 redundant places.
[2024-11-28 04:47:54,843 INFO L231 Difference]: Finished difference. Result has 79 places, 68 transitions, 174 flow
[2024-11-28 04:47:54,843 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=174, PETRI_PLACES=79, PETRI_TRANSITIONS=68}
[2024-11-28 04:47:54,844 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, -3 predicate places.
[2024-11-28 04:47:54,847 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 68 transitions, 174 flow
[2024-11-28 04:47:54,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 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)
[2024-11-28 04:47:54,847 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-28 04:47:54,848 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 3, 1, 1, 1, 1, 1]
[2024-11-28 04:47:54,848 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-28 04:47:54,848 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-11-28 04:47:54,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-28 04:47:54,848 INFO L85 PathProgramCache]: Analyzing trace with hash 815278947, now seen corresponding path program 1 times
[2024-11-28 04:47:54,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-28 04:47:54,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127011731]
[2024-11-28 04:47:54,849 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-28 04:47:54,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-28 04:47:54,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-28 04:47:54,904 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-28 04:47:54,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-28 04:47:54,936 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-11-28 04:47:54,940 INFO L340 BasicCegarLoop]: Counterexample is feasible
[2024-11-28 04:47:54,940 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-11-28 04:47:54,940 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-11-28 04:47:54,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-28 04:47:54,941 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2024-11-28 04:47:54,941 WARN L246 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-11-28 04:47:54,941 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances.
[2024-11-28 04:47:54,998 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions.
[2024-11-28 04:47:55,002 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 102 places, 124 transitions, 288 flow
[2024-11-28 04:47:55,038 INFO L124 PetriNetUnfolderBase]: 60/271 cut-off events.
[2024-11-28 04:47:55,038 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES.
[2024-11-28 04:47:55,040 INFO L83 FinitePrefix]: Finished finitePrefix Result has 322 conditions, 271 events. 60/271 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1256 event pairs, 6 based on Foata normal form. 0/206 useless extension candidates. Maximal degree in co-relation 208. Up to 32 conditions per place.
[2024-11-28 04:47:55,040 INFO L82 GeneralOperation]: Start removeDead. Operand has 102 places, 124 transitions, 288 flow
[2024-11-28 04:47:55,044 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 102 places, 124 transitions, 288 flow
[2024-11-28 04:47:55,045 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-28 04:47:55,046 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;@230b55f5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-28 04:47:55,047 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-11-28 04:47:55,051 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2024-11-28 04:47:55,052 INFO L124 PetriNetUnfolderBase]: 1/37 cut-off events.
[2024-11-28 04:47:55,052 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES.
[2024-11-28 04:47:55,052 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-28 04:47:55,052 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-28 04:47:55,053 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-11-28 04:47:55,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-28 04:47:55,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1466312625, now seen corresponding path program 1 times
[2024-11-28 04:47:55,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-28 04:47:55,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977503529]
[2024-11-28 04:47:55,054 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-28 04:47:55,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-28 04:47:55,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-28 04:47:55,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-28 04:47:55,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-28 04:47:55,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977503529]
[2024-11-28 04:47:55,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977503529] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-28 04:47:55,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-28 04:47:55,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-28 04:47:55,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560059315]
[2024-11-28 04:47:55,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-28 04:47:55,152 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-28 04:47:55,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-28 04:47:55,153 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-28 04:47:55,153 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-28 04:47:55,153 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 124
[2024-11-28 04:47:55,154 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 124 transitions, 288 flow. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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)
[2024-11-28 04:47:55,154 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-28 04:47:55,154 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 124
[2024-11-28 04:47:55,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand