./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_79-equ_racefree.i --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for memory safety (deref-memtrack)
Using default analysis
Version 6497de01
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bc0f013-677b-4adf-b290-8d762d408d39/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bc0f013-677b-4adf-b290-8d762d408d39/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bc0f013-677b-4adf-b290-8d762d408d39/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bc0f013-677b-4adf-b290-8d762d408d39/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_79-equ_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bc0f013-677b-4adf-b290-8d762d408d39/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bc0f013-677b-4adf-b290-8d762d408d39/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5ac72ff2379990464c5f55660be1e08b12557a61aceeef8401296ef66be035fc
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-6497de0
[2024-11-24 01:19:27,792 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-24 01:19:27,894 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bc0f013-677b-4adf-b290-8d762d408d39/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf
[2024-11-24 01:19:27,903 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-24 01:19:27,904 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-24 01:19:27,940 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-24 01:19:27,942 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-24 01:19:27,943 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-24 01:19:27,943 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-24 01:19:27,943 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-24 01:19:27,944 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-24 01:19:27,945 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-24 01:19:27,945 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-24 01:19:27,945 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-24 01:19:27,946 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-24 01:19:27,946 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-24 01:19:27,946 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-24 01:19:27,946 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-24 01:19:27,946 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-24 01:19:27,946 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-24 01:19:27,946 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true
[2024-11-24 01:19:27,946 INFO L153 SettingsManager]: * Bitprecise bitfields=true
[2024-11-24 01:19:27,946 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true
[2024-11-24 01:19:27,946 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-24 01:19:27,946 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2024-11-24 01:19:27,946 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-11-24 01:19:27,947 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-24 01:19:27,948 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-11-24 01:19:27,948 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-24 01:19:27,948 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-11-24 01:19:27,949 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-24 01:19:27,949 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-24 01:19:27,949 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-24 01:19:27,949 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 01:19:27,949 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-24 01:19:27,949 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-24 01:19:27,950 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-24 01:19:27,950 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-24 01:19:27,950 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 01:19:27,950 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-24 01:19:27,950 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-24 01:19:27,950 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-24 01:19:27,950 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-24 01:19:27,950 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-24 01:19:27,950 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-24 01:19:27,950 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-24 01:19:27,951 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-24 01:19:27,951 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_8bc0f013-677b-4adf-b290-8d762d408d39/bin/uautomizer-verify-LYvppIcaGC
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ac72ff2379990464c5f55660be1e08b12557a61aceeef8401296ef66be035fc
[2024-11-24 01:19:28,264 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-24 01:19:28,272 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-24 01:19:28,274 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-24 01:19:28,276 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-24 01:19:28,277 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-24 01:19:28,278 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bc0f013-677b-4adf-b290-8d762d408d39/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/goblint-regression/28-race_reach_79-equ_racefree.i
[2024-11-24 01:19:31,194 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bc0f013-677b-4adf-b290-8d762d408d39/bin/uautomizer-verify-LYvppIcaGC/data/fdf1d26b2/925695baa86b4adba1afeff866f033fe/FLAG9a9c9ada2
[2024-11-24 01:19:31,564 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-24 01:19:31,564 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bc0f013-677b-4adf-b290-8d762d408d39/sv-benchmarks/c/goblint-regression/28-race_reach_79-equ_racefree.i
[2024-11-24 01:19:31,593 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bc0f013-677b-4adf-b290-8d762d408d39/bin/uautomizer-verify-LYvppIcaGC/data/fdf1d26b2/925695baa86b4adba1afeff866f033fe/FLAG9a9c9ada2
[2024-11-24 01:19:31,616 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bc0f013-677b-4adf-b290-8d762d408d39/bin/uautomizer-verify-LYvppIcaGC/data/fdf1d26b2/925695baa86b4adba1afeff866f033fe
[2024-11-24 01:19:31,619 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-24 01:19:31,620 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-24 01:19:31,624 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-24 01:19:31,624 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-24 01:19:31,629 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-24 01:19:31,630 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:19:31" (1/1) ...
[2024-11-24 01:19:31,633 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dfd34c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:19:31, skipping insertion in model container
[2024-11-24 01:19:31,633 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:19:31" (1/1) ...
[2024-11-24 01:19:31,684 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-24 01:19:32,193 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-24 01:19:32,211 INFO L200 MainTranslator]: Completed pre-run
[2024-11-24 01:19:32,275 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-24 01:19:32,352 INFO L204 MainTranslator]: Completed translation
[2024-11-24 01:19:32,353 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:19:32 WrapperNode
[2024-11-24 01:19:32,353 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-24 01:19:32,354 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-24 01:19:32,354 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-24 01:19:32,354 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-24 01:19:32,362 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:19:32" (1/1) ...
[2024-11-24 01:19:32,384 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:19:32" (1/1) ...
[2024-11-24 01:19:32,418 INFO L138 Inliner]: procedures = 272, calls = 65, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 218
[2024-11-24 01:19:32,418 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-24 01:19:32,419 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-24 01:19:32,419 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-24 01:19:32,419 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-24 01:19:32,430 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:19:32" (1/1) ...
[2024-11-24 01:19:32,431 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:19:32" (1/1) ...
[2024-11-24 01:19:32,435 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:19:32" (1/1) ...
[2024-11-24 01:19:32,469 INFO L175 MemorySlicer]: Split 35 memory accesses to 4 slices as follows [2, 2, 5, 26]. 74 percent of accesses are in the largest equivalence class. The 23 initializations are split as follows [2, 0, 5, 16]. The 5 writes are split as follows [0, 1, 0, 4].
[2024-11-24 01:19:32,469 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:19:32" (1/1) ...
[2024-11-24 01:19:32,469 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:19:32" (1/1) ...
[2024-11-24 01:19:32,482 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:19:32" (1/1) ...
[2024-11-24 01:19:32,487 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:19:32" (1/1) ...
[2024-11-24 01:19:32,494 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:19:32" (1/1) ...
[2024-11-24 01:19:32,496 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:19:32" (1/1) ...
[2024-11-24 01:19:32,501 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:19:32" (1/1) ...
[2024-11-24 01:19:32,504 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-24 01:19:32,508 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-24 01:19:32,508 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-24 01:19:32,508 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-24 01:19:32,509 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:19:32" (1/1) ...
[2024-11-24 01:19:32,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 01:19:32,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bc0f013-677b-4adf-b290-8d762d408d39/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 01:19:32,545 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bc0f013-677b-4adf-b290-8d762d408d39/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-24 01:19:32,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bc0f013-677b-4adf-b290-8d762d408d39/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-24 01:19:32,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2024-11-24 01:19:32,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-11-24 01:19:32,580 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock
[2024-11-24 01:19:32,580 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0
[2024-11-24 01:19:32,580 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1
[2024-11-24 01:19:32,580 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2
[2024-11-24 01:19:32,580 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3
[2024-11-24 01:19:32,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0
[2024-11-24 01:19:32,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1
[2024-11-24 01:19:32,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2
[2024-11-24 01:19:32,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3
[2024-11-24 01:19:32,581 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock
[2024-11-24 01:19:32,581 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-24 01:19:32,581 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun
[2024-11-24 01:19:32,581 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun
[2024-11-24 01:19:32,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-24 01:19:32,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1
[2024-11-24 01:19:32,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2
[2024-11-24 01:19:32,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3
[2024-11-24 01:19:32,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-24 01:19:32,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-24 01:19:32,584 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement.
[2024-11-24 01:19:32,790 INFO L234 CfgBuilder]: Building ICFG
[2024-11-24 01:19:32,792 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-24 01:19:33,330 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program.
[2024-11-24 01:19:33,330 INFO L283 CfgBuilder]: Performing block encoding
[2024-11-24 01:19:33,652 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-24 01:19:33,652 INFO L312 CfgBuilder]: Removed 12 assume(true) statements.
[2024-11-24 01:19:33,652 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:19:33 BoogieIcfgContainer
[2024-11-24 01:19:33,653 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-24 01:19:33,655 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-24 01:19:33,655 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-24 01:19:33,662 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-24 01:19:33,662 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:19:31" (1/3) ...
[2024-11-24 01:19:33,663 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23b100f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:19:33, skipping insertion in model container
[2024-11-24 01:19:33,663 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:19:32" (2/3) ...
[2024-11-24 01:19:33,665 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23b100f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:19:33, skipping insertion in model container
[2024-11-24 01:19:33,665 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:19:33" (3/3) ...
[2024-11-24 01:19:33,666 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_79-equ_racefree.i
[2024-11-24 01:19:33,684 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-24 01:19:33,686 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_79-equ_racefree.i that has 2 procedures, 109 locations, 1 initial locations, 12 loop locations, and 27 error locations.
[2024-11-24 01:19:33,686 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2024-11-24 01:19:33,757 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions.
[2024-11-24 01:19:33,798 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 112 places, 137 transitions, 281 flow
[2024-11-24 01:19:33,930 INFO L124 PetriNetUnfolderBase]: 41/207 cut-off events.
[2024-11-24 01:19:33,933 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES.
[2024-11-24 01:19:33,940 INFO L83 FinitePrefix]: Finished finitePrefix Result has 212 conditions, 207 events. 41/207 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1042 event pairs, 0 based on Foata normal form. 0/120 useless extension candidates. Maximal degree in co-relation 130. Up to 8 conditions per place.
[2024-11-24 01:19:33,941 INFO L82 GeneralOperation]: Start removeDead. Operand has 112 places, 137 transitions, 281 flow
[2024-11-24 01:19:33,949 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 112 places, 137 transitions, 281 flow
[2024-11-24 01:19:33,957 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-24 01:19:33,969 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2cc03ff2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-24 01:19:33,969 INFO L334 AbstractCegarLoop]: Starting to check reachability of 39 error locations.
[2024-11-24 01:19:33,974 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2024-11-24 01:19:33,974 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events.
[2024-11-24 01:19:33,974 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-11-24 01:19:33,974 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 01:19:33,975 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1]
[2024-11-24 01:19:33,975 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 36 more)] ===
[2024-11-24 01:19:33,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:19:33,981 INFO L85 PathProgramCache]: Analyzing trace with hash 610602, now seen corresponding path program 1 times
[2024-11-24 01:19:33,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:19:33,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375560381]
[2024-11-24 01:19:33,989 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:19:33,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:19:34,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:19:34,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:19:34,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:19:34,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375560381]
[2024-11-24 01:19:34,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375560381] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:19:34,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 01:19:34,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2024-11-24 01:19:34,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744469086]
[2024-11-24 01:19:34,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:19:34,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 01:19:34,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:19:34,308 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 01:19:34,309 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 01:19:34,387 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 137
[2024-11-24 01:19:34,391 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 137 transitions, 281 flow. Second operand has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 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)
[2024-11-24 01:19:34,391 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 01:19:34,392 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 137
[2024-11-24 01:19:34,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 01:19:35,033 INFO L124 PetriNetUnfolderBase]: 524/1817 cut-off events.
[2024-11-24 01:19:35,033 INFO L125 PetriNetUnfolderBase]: For 4/5 co-relation queries the response was YES.
[2024-11-24 01:19:35,041 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2864 conditions, 1817 events. 524/1817 cut-off events. For 4/5 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 14173 event pairs, 456 based on Foata normal form. 379/1916 useless extension candidates. Maximal degree in co-relation 2760. Up to 998 conditions per place.
[2024-11-24 01:19:35,053 INFO L140 encePairwiseOnDemand]: 109/137 looper letters, 59 selfloop transitions, 3 changer transitions 8/131 dead transitions.
[2024-11-24 01:19:35,054 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 131 transitions, 409 flow
[2024-11-24 01:19:35,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-24 01:19:35,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-11-24 01:19:35,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 290 transitions.
[2024-11-24 01:19:35,072 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7055961070559611
[2024-11-24 01:19:35,074 INFO L175 Difference]: Start difference. First operand has 112 places, 137 transitions, 281 flow. Second operand 3 states and 290 transitions.
[2024-11-24 01:19:35,075 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 131 transitions, 409 flow
[2024-11-24 01:19:35,083 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 131 transitions, 409 flow, removed 0 selfloop flow, removed 0 redundant places.
[2024-11-24 01:19:35,088 INFO L231 Difference]: Finished difference. Result has 113 places, 110 transitions, 238 flow
[2024-11-24 01:19:35,091 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=229, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=238, PETRI_PLACES=113, PETRI_TRANSITIONS=110}
[2024-11-24 01:19:35,098 INFO L279 CegarLoopForPetriNet]: 112 programPoint places, 1 predicate places.
[2024-11-24 01:19:35,098 INFO L471 AbstractCegarLoop]: Abstraction has has 113 places, 110 transitions, 238 flow
[2024-11-24 01:19:35,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 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)
[2024-11-24 01:19:35,099 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 01:19:35,099 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1]
[2024-11-24 01:19:35,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-24 01:19:35,100 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 36 more)] ===
[2024-11-24 01:19:35,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:19:35,101 INFO L85 PathProgramCache]: Analyzing trace with hash 18931268, now seen corresponding path program 1 times
[2024-11-24 01:19:35,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:19:35,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73809579]
[2024-11-24 01:19:35,102 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:19:35,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:19:35,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:19:35,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:19:35,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:19:35,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73809579]
[2024-11-24 01:19:35,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73809579] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:19:35,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 01:19:35,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-24 01:19:35,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029668199]
[2024-11-24 01:19:35,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:19:35,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 01:19:35,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:19:35,299 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 01:19:35,300 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 01:19:35,338 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 137
[2024-11-24 01:19:35,339 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 110 transitions, 238 flow. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 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)
[2024-11-24 01:19:35,339 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 01:19:35,339 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 137
[2024-11-24 01:19:35,339 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 01:19:35,751 INFO L124 PetriNetUnfolderBase]: 543/1853 cut-off events.
[2024-11-24 01:19:35,751 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES.
[2024-11-24 01:19:35,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2985 conditions, 1853 events. 543/1853 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 14459 event pairs, 456 based on Foata normal form. 0/1633 useless extension candidates. Maximal degree in co-relation 2879. Up to 996 conditions per place.
[2024-11-24 01:19:35,764 INFO L140 encePairwiseOnDemand]: 133/137 looper letters, 67 selfloop transitions, 2 changer transitions 0/127 dead transitions.
[2024-11-24 01:19:35,764 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 127 transitions, 410 flow
[2024-11-24 01:19:35,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-24 01:19:35,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-11-24 01:19:35,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 245 transitions.
[2024-11-24 01:19:35,767 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5961070559610706
[2024-11-24 01:19:35,769 INFO L175 Difference]: Start difference. First operand has 113 places, 110 transitions, 238 flow. Second operand 3 states and 245 transitions.
[2024-11-24 01:19:35,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 127 transitions, 410 flow
[2024-11-24 01:19:35,776 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 127 transitions, 399 flow, removed 1 selfloop flow, removed 3 redundant places.
[2024-11-24 01:19:35,778 INFO L231 Difference]: Finished difference. Result has 110 places, 108 transitions, 227 flow
[2024-11-24 01:19:35,778 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=223, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=227, PETRI_PLACES=110, PETRI_TRANSITIONS=108}
[2024-11-24 01:19:35,779 INFO L279 CegarLoopForPetriNet]: 112 programPoint places, -2 predicate places.
[2024-11-24 01:19:35,780 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 108 transitions, 227 flow
[2024-11-24 01:19:35,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 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)
[2024-11-24 01:19:35,782 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 01:19:35,782 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1]
[2024-11-24 01:19:35,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-24 01:19:35,782 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 36 more)] ===
[2024-11-24 01:19:35,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:19:35,783 INFO L85 PathProgramCache]: Analyzing trace with hash 18931269, now seen corresponding path program 1 times
[2024-11-24 01:19:35,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:19:35,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581006543]
[2024-11-24 01:19:35,783 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:19:35,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:19:35,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:19:36,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:19:36,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:19:36,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581006543]
[2024-11-24 01:19:36,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581006543] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:19:36,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 01:19:36,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-24 01:19:36,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911460714]
[2024-11-24 01:19:36,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:19:36,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 01:19:36,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:19:36,091 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 01:19:36,091 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 01:19:36,150 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 137
[2024-11-24 01:19:36,150 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 108 transitions, 227 flow. Second operand has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 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)
[2024-11-24 01:19:36,150 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 01:19:36,150 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 137
[2024-11-24 01:19:36,150 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 01:19:36,501 INFO L124 PetriNetUnfolderBase]: 496/1674 cut-off events.
[2024-11-24 01:19:36,501 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES.
[2024-11-24 01:19:36,505 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2705 conditions, 1674 events. 496/1674 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 13308 event pairs, 0 based on Foata normal form. 1/1477 useless extension candidates. Maximal degree in co-relation 2655. Up to 981 conditions per place.
[2024-11-24 01:19:36,512 INFO L140 encePairwiseOnDemand]: 133/137 looper letters, 67 selfloop transitions, 2 changer transitions 0/128 dead transitions.
[2024-11-24 01:19:36,512 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 128 transitions, 405 flow
[2024-11-24 01:19:36,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-24 01:19:36,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-11-24 01:19:36,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 254 transitions.
[2024-11-24 01:19:36,515 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6180048661800487
[2024-11-24 01:19:36,516 INFO L175 Difference]: Start difference. First operand has 110 places, 108 transitions, 227 flow. Second operand 3 states and 254 transitions.
[2024-11-24 01:19:36,516 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 128 transitions, 405 flow
[2024-11-24 01:19:36,518 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 128 transitions, 401 flow, removed 0 selfloop flow, removed 2 redundant places.
[2024-11-24 01:19:36,522 INFO L231 Difference]: Finished difference. Result has 111 places, 108 transitions, 233 flow
[2024-11-24 01:19:36,523 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=223, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=233, PETRI_PLACES=111, PETRI_TRANSITIONS=108}
[2024-11-24 01:19:36,524 INFO L279 CegarLoopForPetriNet]: 112 programPoint places, -1 predicate places.
[2024-11-24 01:19:36,525 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 108 transitions, 233 flow
[2024-11-24 01:19:36,525 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 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)
[2024-11-24 01:19:36,525 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 01:19:36,526 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:19:36,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-24 01:19:36,526 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 36 more)] ===
[2024-11-24 01:19:36,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:19:36,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1366091421, now seen corresponding path program 1 times
[2024-11-24 01:19:36,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:19:36,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162990402]
[2024-11-24 01:19:36,528 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:19:36,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:19:36,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:19:36,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:19:36,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:19:36,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162990402]
[2024-11-24 01:19:36,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162990402] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:19:36,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 01:19:36,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-24 01:19:36,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143198884]
[2024-11-24 01:19:36,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:19:36,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-24 01:19:36,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:19:36,828 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-24 01:19:36,829 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-24 01:19:36,879 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 137
[2024-11-24 01:19:36,879 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 108 transitions, 233 flow. Second operand has 4 states, 4 states have (on average 62.75) internal successors, (251), 4 states have internal predecessors, (251), 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)
[2024-11-24 01:19:36,879 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 01:19:36,879 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 137
[2024-11-24 01:19:36,879 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 01:19:37,260 INFO L124 PetriNetUnfolderBase]: 477/1635 cut-off events.
[2024-11-24 01:19:37,260 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES.
[2024-11-24 01:19:37,263 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2667 conditions, 1635 events. 477/1635 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 12913 event pairs, 0 based on Foata normal form. 20/1481 useless extension candidates. Maximal degree in co-relation 2617. Up to 864 conditions per place.
[2024-11-24 01:19:37,270 INFO L140 encePairwiseOnDemand]: 133/137 looper letters, 84 selfloop transitions, 3 changer transitions 0/146 dead transitions.
[2024-11-24 01:19:37,271 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 146 transitions, 481 flow
[2024-11-24 01:19:37,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-24 01:19:37,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-11-24 01:19:37,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 332 transitions.
[2024-11-24 01:19:37,272 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6058394160583942
[2024-11-24 01:19:37,273 INFO L175 Difference]: Start difference. First operand has 111 places, 108 transitions, 233 flow. Second operand 4 states and 332 transitions.
[2024-11-24 01:19:37,273 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 146 transitions, 481 flow
[2024-11-24 01:19:37,274 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 146 transitions, 477 flow, removed 0 selfloop flow, removed 2 redundant places.
[2024-11-24 01:19:37,280 INFO L231 Difference]: Finished difference. Result has 111 places, 107 transitions, 231 flow
[2024-11-24 01:19:37,280 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=225, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=231, PETRI_PLACES=111, PETRI_TRANSITIONS=107}
[2024-11-24 01:19:37,281 INFO L279 CegarLoopForPetriNet]: 112 programPoint places, -1 predicate places.
[2024-11-24 01:19:37,281 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 107 transitions, 231 flow
[2024-11-24 01:19:37,281 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.75) internal successors, (251), 4 states have internal predecessors, (251), 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)
[2024-11-24 01:19:37,281 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 01:19:37,281 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1]
[2024-11-24 01:19:37,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-24 01:19:37,282 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 36 more)] ===
[2024-11-24 01:19:37,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:19:37,282 INFO L85 PathProgramCache]: Analyzing trace with hash 600839601, now seen corresponding path program 1 times
[2024-11-24 01:19:37,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:19:37,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713434161]
[2024-11-24 01:19:37,283 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:19:37,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:19:37,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-24 01:19:37,321 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-24 01:19:37,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-24 01:19:37,376 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-11-24 01:19:37,376 INFO L340 BasicCegarLoop]: Counterexample is feasible
[2024-11-24 01:19:37,377 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (38 of 39 remaining)
[2024-11-24 01:19:37,379 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK (37 of 39 remaining)
[2024-11-24 01:19:37,379 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (36 of 39 remaining)
[2024-11-24 01:19:37,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (35 of 39 remaining)
[2024-11-24 01:19:37,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (34 of 39 remaining)
[2024-11-24 01:19:37,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (33 of 39 remaining)
[2024-11-24 01:19:37,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (32 of 39 remaining)
[2024-11-24 01:19:37,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (31 of 39 remaining)
[2024-11-24 01:19:37,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 39 remaining)
[2024-11-24 01:19:37,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (29 of 39 remaining)
[2024-11-24 01:19:37,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 39 remaining)
[2024-11-24 01:19:37,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 39 remaining)
[2024-11-24 01:19:37,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 39 remaining)
[2024-11-24 01:19:37,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 39 remaining)
[2024-11-24 01:19:37,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 39 remaining)
[2024-11-24 01:19:37,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 39 remaining)
[2024-11-24 01:19:37,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK (22 of 39 remaining)
[2024-11-24 01:19:37,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 39 remaining)
[2024-11-24 01:19:37,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 39 remaining)
[2024-11-24 01:19:37,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 39 remaining)
[2024-11-24 01:19:37,384 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 39 remaining)
[2024-11-24 01:19:37,384 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 39 remaining)
[2024-11-24 01:19:37,384 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 39 remaining)
[2024-11-24 01:19:37,384 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 39 remaining)
[2024-11-24 01:19:37,384 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 39 remaining)
[2024-11-24 01:19:37,384 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 39 remaining)
[2024-11-24 01:19:37,384 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 39 remaining)
[2024-11-24 01:19:37,384 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr10ASSERT_VIOLATIONMEMORY_LEAK (11 of 39 remaining)
[2024-11-24 01:19:37,384 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 39 remaining)
[2024-11-24 01:19:37,384 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 39 remaining)
[2024-11-24 01:19:37,384 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 39 remaining)
[2024-11-24 01:19:37,385 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 39 remaining)
[2024-11-24 01:19:37,385 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 39 remaining)
[2024-11-24 01:19:37,385 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 39 remaining)
[2024-11-24 01:19:37,385 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 39 remaining)
[2024-11-24 01:19:37,385 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 39 remaining)
[2024-11-24 01:19:37,385 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 39 remaining)
[2024-11-24 01:19:37,385 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 39 remaining)
[2024-11-24 01:19:37,385 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr10ASSERT_VIOLATIONMEMORY_LEAK (0 of 39 remaining)
[2024-11-24 01:19:37,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-24 01:19:37,386 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1]
[2024-11-24 01:19:37,391 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-11-24 01:19:37,391 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances.
[2024-11-24 01:19:37,444 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions.
[2024-11-24 01:19:37,447 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 161 places, 198 transitions, 412 flow
[2024-11-24 01:19:37,496 INFO L124 PetriNetUnfolderBase]: 69/350 cut-off events.
[2024-11-24 01:19:37,496 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES.
[2024-11-24 01:19:37,500 INFO L83 FinitePrefix]: Finished finitePrefix Result has 362 conditions, 350 events. 69/350 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 2019 event pairs, 0 based on Foata normal form. 0/204 useless extension candidates. Maximal degree in co-relation 209. Up to 12 conditions per place.
[2024-11-24 01:19:37,501 INFO L82 GeneralOperation]: Start removeDead. Operand has 161 places, 198 transitions, 412 flow
[2024-11-24 01:19:37,506 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 161 places, 198 transitions, 412 flow
[2024-11-24 01:19:37,508 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-24 01:19:37,513 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2cc03ff2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-24 01:19:37,513 INFO L334 AbstractCegarLoop]: Starting to check reachability of 50 error locations.
[2024-11-24 01:19:37,515 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2024-11-24 01:19:37,515 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events.
[2024-11-24 01:19:37,515 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-11-24 01:19:37,515 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 01:19:37,515 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1]
[2024-11-24 01:19:37,516 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 47 more)] ===
[2024-11-24 01:19:37,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:19:37,516 INFO L85 PathProgramCache]: Analyzing trace with hash 807216, now seen corresponding path program 1 times
[2024-11-24 01:19:37,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:19:37,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180171529]
[2024-11-24 01:19:37,516 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:19:37,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:19:37,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:19:37,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:19:37,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:19:37,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180171529]
[2024-11-24 01:19:37,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180171529] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:19:37,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 01:19:37,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2024-11-24 01:19:37,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707011642]
[2024-11-24 01:19:37,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:19:37,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 01:19:37,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:19:37,554 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 01:19:37,554 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 01:19:37,596 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 198
[2024-11-24 01:19:37,596 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 198 transitions, 412 flow. Second operand has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 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)
[2024-11-24 01:19:37,596 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 01:19:37,596 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 198
[2024-11-24 01:19:37,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 01:19:43,613 INFO L124 PetriNetUnfolderBase]: 21468/47561 cut-off events.
[2024-11-24 01:19:43,613 INFO L125 PetriNetUnfolderBase]: For 161/181 co-relation queries the response was YES.
[2024-11-24 01:19:43,810 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79553 conditions, 47561 events. 21468/47561 cut-off events. For 161/181 co-relation queries the response was YES. Maximal size of possible extension queue 1436. Compared 526831 event pairs, 19171 based on Foata normal form. 12068/53549 useless extension candidates. Maximal degree in co-relation 68835. Up to 30618 conditions per place.
[2024-11-24 01:19:44,234 INFO L140 encePairwiseOnDemand]: 158/198 looper letters, 105 selfloop transitions, 3 changer transitions 2/198 dead transitions.
[2024-11-24 01:19:44,235 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 198 transitions, 632 flow
[2024-11-24 01:19:44,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-24 01:19:44,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-11-24 01:19:44,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 435 transitions.
[2024-11-24 01:19:44,237 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7323232323232324
[2024-11-24 01:19:44,237 INFO L175 Difference]: Start difference. First operand has 161 places, 198 transitions, 412 flow. Second operand 3 states and 435 transitions.
[2024-11-24 01:19:44,237 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 198 transitions, 632 flow
[2024-11-24 01:19:44,247 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 198 transitions, 632 flow, removed 0 selfloop flow, removed 0 redundant places.
[2024-11-24 01:19:44,254 INFO L231 Difference]: Finished difference. Result has 161 places, 158 transitions, 343 flow
[2024-11-24 01:19:44,255 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=334, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=343, PETRI_PLACES=161, PETRI_TRANSITIONS=158}
[2024-11-24 01:19:44,256 INFO L279 CegarLoopForPetriNet]: 161 programPoint places, 0 predicate places.
[2024-11-24 01:19:44,256 INFO L471 AbstractCegarLoop]: Abstraction has has 161 places, 158 transitions, 343 flow
[2024-11-24 01:19:44,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 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)
[2024-11-24 01:19:44,256 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 01:19:44,256 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1]
[2024-11-24 01:19:44,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-24 01:19:44,257 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 47 more)] ===
[2024-11-24 01:19:44,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:19:44,257 INFO L85 PathProgramCache]: Analyzing trace with hash 25026500, now seen corresponding path program 1 times
[2024-11-24 01:19:44,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:19:44,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686783060]
[2024-11-24 01:19:44,257 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:19:44,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:19:44,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:19:44,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:19:44,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:19:44,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686783060]
[2024-11-24 01:19:44,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686783060] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:19:44,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 01:19:44,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-24 01:19:44,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319688900]
[2024-11-24 01:19:44,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:19:44,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 01:19:44,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:19:44,365 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 01:19:44,365 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 01:19:44,445 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 198
[2024-11-24 01:19:44,446 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 158 transitions, 343 flow. Second operand has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 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)
[2024-11-24 01:19:44,446 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 01:19:44,446 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 198
[2024-11-24 01:19:44,446 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 01:19:48,158 INFO L124 PetriNetUnfolderBase]: 22270/49166 cut-off events.
[2024-11-24 01:19:48,158 INFO L125 PetriNetUnfolderBase]: For 552/552 co-relation queries the response was YES.
[2024-11-24 01:19:48,227 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83239 conditions, 49166 events. 22270/49166 cut-off events. For 552/552 co-relation queries the response was YES. Maximal size of possible extension queue 1467. Compared 545943 event pairs, 19152 based on Foata normal form. 0/43826 useless extension candidates. Maximal degree in co-relation 80257. Up to 30549 conditions per place.
[2024-11-24 01:19:48,395 INFO L140 encePairwiseOnDemand]: 194/198 looper letters, 107 selfloop transitions, 2 changer transitions 0/194 dead transitions.
[2024-11-24 01:19:48,396 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 194 transitions, 633 flow
[2024-11-24 01:19:48,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-24 01:19:48,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-11-24 01:19:48,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 366 transitions.
[2024-11-24 01:19:48,397 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6161616161616161
[2024-11-24 01:19:48,397 INFO L175 Difference]: Start difference. First operand has 161 places, 158 transitions, 343 flow. Second operand 3 states and 366 transitions.
[2024-11-24 01:19:48,397 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 194 transitions, 633 flow
[2024-11-24 01:19:48,560 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 194 transitions, 622 flow, removed 1 selfloop flow, removed 3 redundant places.
[2024-11-24 01:19:48,564 INFO L231 Difference]: Finished difference. Result has 158 places, 156 transitions, 332 flow
[2024-11-24 01:19:48,564 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=332, PETRI_PLACES=158, PETRI_TRANSITIONS=156}
[2024-11-24 01:19:48,566 INFO L279 CegarLoopForPetriNet]: 161 programPoint places, -3 predicate places.
[2024-11-24 01:19:48,566 INFO L471 AbstractCegarLoop]: Abstraction has has 158 places, 156 transitions, 332 flow
[2024-11-24 01:19:48,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 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)
[2024-11-24 01:19:48,568 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 01:19:48,568 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1]
[2024-11-24 01:19:48,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-24 01:19:48,569 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 47 more)] ===
[2024-11-24 01:19:48,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:19:48,569 INFO L85 PathProgramCache]: Analyzing trace with hash 25026501, now seen corresponding path program 1 times
[2024-11-24 01:19:48,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:19:48,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545850056]
[2024-11-24 01:19:48,569 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:19:48,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:19:48,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:19:48,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:19:48,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:19:48,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545850056]
[2024-11-24 01:19:48,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545850056] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:19:48,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 01:19:48,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-24 01:19:48,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199091705]
[2024-11-24 01:19:48,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:19:48,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 01:19:48,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:19:48,678 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 01:19:48,678 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 01:19:48,733 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 198
[2024-11-24 01:19:48,734 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 156 transitions, 332 flow. Second operand has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 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)
[2024-11-24 01:19:48,735 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 01:19:48,735 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 198
[2024-11-24 01:19:48,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 01:19:52,274 INFO L124 PetriNetUnfolderBase]: 21462/48277 cut-off events.
[2024-11-24 01:19:52,275 INFO L125 PetriNetUnfolderBase]: For 290/315 co-relation queries the response was YES.
[2024-11-24 01:19:52,340 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80597 conditions, 48277 events. 21462/48277 cut-off events. For 290/315 co-relation queries the response was YES. Maximal size of possible extension queue 1439. Compared 540716 event pairs, 19931 based on Foata normal form. 1/42785 useless extension candidates. Maximal degree in co-relation 77508. Up to 31748 conditions per place.
[2024-11-24 01:19:52,527 INFO L140 encePairwiseOnDemand]: 194/198 looper letters, 89 selfloop transitions, 2 changer transitions 0/177 dead transitions.
[2024-11-24 01:19:52,527 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 177 transitions, 556 flow
[2024-11-24 01:19:52,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-24 01:19:52,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-11-24 01:19:52,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 357 transitions.
[2024-11-24 01:19:52,529 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.601010101010101
[2024-11-24 01:19:52,529 INFO L175 Difference]: Start difference. First operand has 158 places, 156 transitions, 332 flow. Second operand 3 states and 357 transitions.
[2024-11-24 01:19:52,529 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 177 transitions, 556 flow
[2024-11-24 01:19:52,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 177 transitions, 552 flow, removed 0 selfloop flow, removed 2 redundant places.
[2024-11-24 01:19:52,575 INFO L231 Difference]: Finished difference. Result has 159 places, 157 transitions, 342 flow
[2024-11-24 01:19:52,575 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=342, PETRI_PLACES=159, PETRI_TRANSITIONS=157}
[2024-11-24 01:19:52,576 INFO L279 CegarLoopForPetriNet]: 161 programPoint places, -2 predicate places.
[2024-11-24 01:19:52,576 INFO L471 AbstractCegarLoop]: Abstraction has has 159 places, 157 transitions, 342 flow
[2024-11-24 01:19:52,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 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)
[2024-11-24 01:19:52,576 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 01:19:52,577 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:19:52,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-11-24 01:19:52,577 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 47 more)] ===
[2024-11-24 01:19:52,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:19:52,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1309355592, now seen corresponding path program 1 times
[2024-11-24 01:19:52,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:19:52,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110204644]
[2024-11-24 01:19:52,578 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:19:52,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:19:52,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:19:52,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:19:52,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:19:52,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110204644]
[2024-11-24 01:19:52,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110204644] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:19:52,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 01:19:52,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-24 01:19:52,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603539984]
[2024-11-24 01:19:52,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:19:52,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-24 01:19:52,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:19:52,787 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-24 01:19:52,788 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-24 01:19:52,880 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 198
[2024-11-24 01:19:52,881 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 157 transitions, 342 flow. Second operand has 5 states, 5 states have (on average 88.6) internal successors, (443), 5 states have internal predecessors, (443), 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)
[2024-11-24 01:19:52,882 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 01:19:52,882 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 198
[2024-11-24 01:19:52,882 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 01:19:56,157 INFO L124 PetriNetUnfolderBase]: 20051/44029 cut-off events.
[2024-11-24 01:19:56,157 INFO L125 PetriNetUnfolderBase]: For 946/946 co-relation queries the response was YES.
[2024-11-24 01:19:56,223 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75218 conditions, 44029 events. 20051/44029 cut-off events. For 946/946 co-relation queries the response was YES. Maximal size of possible extension queue 1429. Compared 491295 event pairs, 761 based on Foata normal form. 440/40248 useless extension candidates. Maximal degree in co-relation 4839. Up to 25839 conditions per place.
[2024-11-24 01:19:56,328 INFO L140 encePairwiseOnDemand]: 193/198 looper letters, 164 selfloop transitions, 5 changer transitions 0/254 dead transitions.
[2024-11-24 01:19:56,329 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 254 transitions, 872 flow
[2024-11-24 01:19:56,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-24 01:19:56,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2024-11-24 01:19:56,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 606 transitions.
[2024-11-24 01:19:56,331 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6121212121212121
[2024-11-24 01:19:56,331 INFO L175 Difference]: Start difference. First operand has 159 places, 157 transitions, 342 flow. Second operand 5 states and 606 transitions.
[2024-11-24 01:19:56,331 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 254 transitions, 872 flow
[2024-11-24 01:19:56,332 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 254 transitions, 870 flow, removed 0 selfloop flow, removed 1 redundant places.
[2024-11-24 01:19:56,335 INFO L231 Difference]: Finished difference. Result has 162 places, 157 transitions, 353 flow
[2024-11-24 01:19:56,335 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=336, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=353, PETRI_PLACES=162, PETRI_TRANSITIONS=157}
[2024-11-24 01:19:56,336 INFO L279 CegarLoopForPetriNet]: 161 programPoint places, 1 predicate places.
[2024-11-24 01:19:56,336 INFO L471 AbstractCegarLoop]: Abstraction has has 162 places, 157 transitions, 353 flow
[2024-11-24 01:19:56,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 88.6) internal successors, (443), 5 states have internal predecessors, (443), 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)
[2024-11-24 01:19:56,337 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 01:19:56,337 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:19:56,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-11-24 01:19:56,337 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 47 more)] ===
[2024-11-24 01:19:56,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:19:56,337 INFO L85 PathProgramCache]: Analyzing trace with hash -907414947, now seen corresponding path program 1 times
[2024-11-24 01:19:56,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:19:56,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956007478]
[2024-11-24 01:19:56,338 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:19:56,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:19:56,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:19:56,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:19:56,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:19:56,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956007478]
[2024-11-24 01:19:56,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956007478] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:19:56,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 01:19:56,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-24 01:19:56,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042278670]
[2024-11-24 01:19:56,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:19:56,665 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-24 01:19:56,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:19:56,666 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-24 01:19:56,666 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-24 01:19:56,808 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 198
[2024-11-24 01:19:56,809 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 157 transitions, 353 flow. Second operand has 5 states, 5 states have (on average 79.0) internal successors, (395), 5 states have internal predecessors, (395), 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)
[2024-11-24 01:19:56,809 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 01:19:56,809 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 198
[2024-11-24 01:19:56,809 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 01:20:00,616 INFO L124 PetriNetUnfolderBase]: 23724/51105 cut-off events.
[2024-11-24 01:20:00,616 INFO L125 PetriNetUnfolderBase]: For 4150/4150 co-relation queries the response was YES.
[2024-11-24 01:20:00,691 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89616 conditions, 51105 events. 23724/51105 cut-off events. For 4150/4150 co-relation queries the response was YES. Maximal size of possible extension queue 1435. Compared 556028 event pairs, 19077 based on Foata normal form. 0/46877 useless extension candidates. Maximal degree in co-relation 80008. Up to 29721 conditions per place.
[2024-11-24 01:20:00,831 INFO L140 encePairwiseOnDemand]: 176/198 looper letters, 148 selfloop transitions, 12 changer transitions 0/234 dead transitions.
[2024-11-24 01:20:00,832 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 234 transitions, 827 flow
[2024-11-24 01:20:00,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-24 01:20:00,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-11-24 01:20:00,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 486 transitions.
[2024-11-24 01:20:00,833 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6136363636363636
[2024-11-24 01:20:00,834 INFO L175 Difference]: Start difference. First operand has 162 places, 157 transitions, 353 flow. Second operand 4 states and 486 transitions.
[2024-11-24 01:20:00,834 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 234 transitions, 827 flow
[2024-11-24 01:20:00,836 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 234 transitions, 817 flow, removed 2 selfloop flow, removed 3 redundant places.
[2024-11-24 01:20:00,838 INFO L231 Difference]: Finished difference. Result has 165 places, 167 transitions, 471 flow
[2024-11-24 01:20:00,839 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=343, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=471, PETRI_PLACES=165, PETRI_TRANSITIONS=167}
[2024-11-24 01:20:00,839 INFO L279 CegarLoopForPetriNet]: 161 programPoint places, 4 predicate places.
[2024-11-24 01:20:00,839 INFO L471 AbstractCegarLoop]: Abstraction has has 165 places, 167 transitions, 471 flow
[2024-11-24 01:20:00,840 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 79.0) internal successors, (395), 5 states have internal predecessors, (395), 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)
[2024-11-24 01:20:00,840 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 01:20:00,840 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1]
[2024-11-24 01:20:00,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2024-11-24 01:20:00,840 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 47 more)] ===
[2024-11-24 01:20:00,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:20:00,841 INFO L85 PathProgramCache]: Analyzing trace with hash -259587765, now seen corresponding path program 1 times
[2024-11-24 01:20:00,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:20:00,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928376184]
[2024-11-24 01:20:00,841 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:20:00,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:20:00,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-24 01:20:00,867 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-24 01:20:00,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-24 01:20:00,890 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-11-24 01:20:00,890 INFO L340 BasicCegarLoop]: Counterexample is feasible
[2024-11-24 01:20:00,891 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (49 of 50 remaining)
[2024-11-24 01:20:00,891 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK (48 of 50 remaining)
[2024-11-24 01:20:00,891 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (47 of 50 remaining)
[2024-11-24 01:20:00,891 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (46 of 50 remaining)
[2024-11-24 01:20:00,891 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (45 of 50 remaining)
[2024-11-24 01:20:00,891 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (44 of 50 remaining)
[2024-11-24 01:20:00,891 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (43 of 50 remaining)
[2024-11-24 01:20:00,892 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (42 of 50 remaining)
[2024-11-24 01:20:00,892 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (41 of 50 remaining)
[2024-11-24 01:20:00,892 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (40 of 50 remaining)
[2024-11-24 01:20:00,892 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (39 of 50 remaining)
[2024-11-24 01:20:00,892 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (38 of 50 remaining)
[2024-11-24 01:20:00,892 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (37 of 50 remaining)
[2024-11-24 01:20:00,892 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (36 of 50 remaining)
[2024-11-24 01:20:00,892 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (35 of 50 remaining)
[2024-11-24 01:20:00,893 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (34 of 50 remaining)
[2024-11-24 01:20:00,893 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK (33 of 50 remaining)
[2024-11-24 01:20:00,893 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (32 of 50 remaining)
[2024-11-24 01:20:00,893 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (31 of 50 remaining)
[2024-11-24 01:20:00,893 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 50 remaining)
[2024-11-24 01:20:00,893 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (29 of 50 remaining)
[2024-11-24 01:20:00,893 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 50 remaining)
[2024-11-24 01:20:00,893 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 50 remaining)
[2024-11-24 01:20:00,894 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 50 remaining)
[2024-11-24 01:20:00,894 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 50 remaining)
[2024-11-24 01:20:00,894 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 50 remaining)
[2024-11-24 01:20:00,894 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 50 remaining)
[2024-11-24 01:20:00,894 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr10ASSERT_VIOLATIONMEMORY_LEAK (22 of 50 remaining)
[2024-11-24 01:20:00,894 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 50 remaining)
[2024-11-24 01:20:00,894 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 50 remaining)
[2024-11-24 01:20:00,894 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 50 remaining)
[2024-11-24 01:20:00,895 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 50 remaining)
[2024-11-24 01:20:00,895 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 50 remaining)
[2024-11-24 01:20:00,895 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 50 remaining)
[2024-11-24 01:20:00,895 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 50 remaining)
[2024-11-24 01:20:00,895 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 50 remaining)
[2024-11-24 01:20:00,895 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 50 remaining)
[2024-11-24 01:20:00,895 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 50 remaining)
[2024-11-24 01:20:00,895 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr10ASSERT_VIOLATIONMEMORY_LEAK (11 of 50 remaining)
[2024-11-24 01:20:00,895 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 50 remaining)
[2024-11-24 01:20:00,896 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 50 remaining)
[2024-11-24 01:20:00,896 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 50 remaining)
[2024-11-24 01:20:00,896 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 50 remaining)
[2024-11-24 01:20:00,896 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 50 remaining)
[2024-11-24 01:20:00,896 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 50 remaining)
[2024-11-24 01:20:00,896 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 50 remaining)
[2024-11-24 01:20:00,896 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 50 remaining)
[2024-11-24 01:20:00,896 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 50 remaining)
[2024-11-24 01:20:00,896 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 50 remaining)
[2024-11-24 01:20:00,896 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr10ASSERT_VIOLATIONMEMORY_LEAK (0 of 50 remaining)
[2024-11-24 01:20:00,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2024-11-24 01:20:00,897 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1]
[2024-11-24 01:20:00,898 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-11-24 01:20:00,898 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances.
[2024-11-24 01:20:00,970 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions.
[2024-11-24 01:20:00,977 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 210 places, 259 transitions, 545 flow
[2024-11-24 01:20:01,060 INFO L124 PetriNetUnfolderBase]: 100/514 cut-off events.
[2024-11-24 01:20:01,060 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES.
[2024-11-24 01:20:01,065 INFO L83 FinitePrefix]: Finished finitePrefix Result has 539 conditions, 514 events. 100/514 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 3153 event pairs, 1 based on Foata normal form. 0/301 useless extension candidates. Maximal degree in co-relation 359. Up to 16 conditions per place.
[2024-11-24 01:20:01,065 INFO L82 GeneralOperation]: Start removeDead. Operand has 210 places, 259 transitions, 545 flow
[2024-11-24 01:20:01,076 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 210 places, 259 transitions, 545 flow
[2024-11-24 01:20:01,079 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-24 01:20:01,079 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2cc03ff2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-24 01:20:01,080 INFO L334 AbstractCegarLoop]: Starting to check reachability of 61 error locations.
[2024-11-24 01:20:01,082 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2024-11-24 01:20:01,083 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events.
[2024-11-24 01:20:01,083 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-11-24 01:20:01,083 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 01:20:01,083 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1]
[2024-11-24 01:20:01,083 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 58 more)] ===
[2024-11-24 01:20:01,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:20:01,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1064403, now seen corresponding path program 1 times
[2024-11-24 01:20:01,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:20:01,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594409299]
[2024-11-24 01:20:01,084 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:20:01,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:20:01,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:20:01,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:20:01,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:20:01,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594409299]
[2024-11-24 01:20:01,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594409299] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:20:01,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 01:20:01,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2024-11-24 01:20:01,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973245332]
[2024-11-24 01:20:01,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:20:01,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 01:20:01,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:20:01,127 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 01:20:01,127 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 01:20:01,183 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 259
[2024-11-24 01:20:01,184 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 259 transitions, 545 flow. Second operand has 3 states, 3 states have (on average 116.0) internal successors, (348), 3 states have internal predecessors, (348), 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)
[2024-11-24 01:20:01,184 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 01:20:01,184 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 259
[2024-11-24 01:20:01,184 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand