./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread/reorder_2-2.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_02ea6e40-8421-4fdb-a2da-785cfbb69c10/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ea6e40-8421-4fdb-a2da-785cfbb69c10/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_02ea6e40-8421-4fdb-a2da-785cfbb69c10/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ea6e40-8421-4fdb-a2da-785cfbb69c10/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread/reorder_2-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ea6e40-8421-4fdb-a2da-785cfbb69c10/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_02ea6e40-8421-4fdb-a2da-785cfbb69c10/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 3383b6c07cf534421a7126af6d1505c2131b6416498f0a6ca41b356029c5a1e0
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-6497de0
[2024-11-23 22:34:46,875 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-23 22:34:46,959 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ea6e40-8421-4fdb-a2da-785cfbb69c10/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf
[2024-11-23 22:34:46,967 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-23 22:34:46,970 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-23 22:34:47,001 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-23 22:34:47,002 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-23 22:34:47,002 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-23 22:34:47,003 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-23 22:34:47,003 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-23 22:34:47,004 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-23 22:34:47,004 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-23 22:34:47,005 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-23 22:34:47,005 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-23 22:34:47,005 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-23 22:34:47,006 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-23 22:34:47,006 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-23 22:34:47,006 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-23 22:34:47,006 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-23 22:34:47,007 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-23 22:34:47,007 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true
[2024-11-23 22:34:47,007 INFO L153 SettingsManager]: * Bitprecise bitfields=true
[2024-11-23 22:34:47,007 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true
[2024-11-23 22:34:47,007 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-23 22:34:47,007 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2024-11-23 22:34:47,007 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-11-23 22:34:47,007 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-23 22:34:47,008 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-11-23 22:34:47,008 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-23 22:34:47,008 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-11-23 22:34:47,008 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-23 22:34:47,008 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-23 22:34:47,009 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-23 22:34:47,009 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 22:34:47,009 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-23 22:34:47,009 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-23 22:34:47,010 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-23 22:34:47,010 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-23 22:34:47,010 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 22:34:47,010 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-23 22:34:47,010 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-23 22:34:47,010 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-23 22:34:47,010 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-23 22:34:47,011 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-23 22:34:47,011 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-23 22:34:47,011 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-23 22:34:47,011 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-23 22:34:47,011 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_02ea6e40-8421-4fdb-a2da-785cfbb69c10/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 -> 3383b6c07cf534421a7126af6d1505c2131b6416498f0a6ca41b356029c5a1e0
[2024-11-23 22:34:47,326 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-23 22:34:47,336 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-23 22:34:47,340 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-23 22:34:47,342 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-23 22:34:47,343 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-23 22:34:47,344 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ea6e40-8421-4fdb-a2da-785cfbb69c10/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/pthread/reorder_2-2.i
[2024-11-23 22:34:50,275 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ea6e40-8421-4fdb-a2da-785cfbb69c10/bin/uautomizer-verify-LYvppIcaGC/data/a0b7daaba/bd8f29a947284fd3a3f26eb916ce54ae/FLAG3b9ebe0ee
[2024-11-23 22:34:50,690 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-23 22:34:50,691 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ea6e40-8421-4fdb-a2da-785cfbb69c10/sv-benchmarks/c/pthread/reorder_2-2.i
[2024-11-23 22:34:50,715 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ea6e40-8421-4fdb-a2da-785cfbb69c10/bin/uautomizer-verify-LYvppIcaGC/data/a0b7daaba/bd8f29a947284fd3a3f26eb916ce54ae/FLAG3b9ebe0ee
[2024-11-23 22:34:50,736 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ea6e40-8421-4fdb-a2da-785cfbb69c10/bin/uautomizer-verify-LYvppIcaGC/data/a0b7daaba/bd8f29a947284fd3a3f26eb916ce54ae
[2024-11-23 22:34:50,739 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-23 22:34:50,740 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-23 22:34:50,742 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-23 22:34:50,743 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-23 22:34:50,747 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-23 22:34:50,748 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:34:50" (1/1) ...
[2024-11-23 22:34:50,749 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76370491 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:50, skipping insertion in model container
[2024-11-23 22:34:50,751 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:34:50" (1/1) ...
[2024-11-23 22:34:50,794 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-23 22:34:51,527 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-23 22:34:51,543 INFO L200 MainTranslator]: Completed pre-run
[2024-11-23 22:34:51,639 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-23 22:34:51,743 INFO L204 MainTranslator]: Completed translation
[2024-11-23 22:34:51,745 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:51 WrapperNode
[2024-11-23 22:34:51,745 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-23 22:34:51,747 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-23 22:34:51,747 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-23 22:34:51,747 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-23 22:34:51,754 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:51" (1/1) ...
[2024-11-23 22:34:51,780 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:51" (1/1) ...
[2024-11-23 22:34:51,809 INFO L138 Inliner]: procedures = 372, calls = 27, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 133
[2024-11-23 22:34:51,810 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-23 22:34:51,811 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-23 22:34:51,811 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-23 22:34:51,812 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-23 22:34:51,822 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:51" (1/1) ...
[2024-11-23 22:34:51,823 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:51" (1/1) ...
[2024-11-23 22:34:51,827 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:51" (1/1) ...
[2024-11-23 22:34:51,856 INFO L175 MemorySlicer]: Split 6 memory accesses to 3 slices as follows [2, 2, 2]. 33 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 2 writes are split as follows [0, 1, 1].
[2024-11-23 22:34:51,857 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:51" (1/1) ...
[2024-11-23 22:34:51,857 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:51" (1/1) ...
[2024-11-23 22:34:51,873 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:51" (1/1) ...
[2024-11-23 22:34:51,874 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:51" (1/1) ...
[2024-11-23 22:34:51,877 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:51" (1/1) ...
[2024-11-23 22:34:51,882 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:51" (1/1) ...
[2024-11-23 22:34:51,884 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:51" (1/1) ...
[2024-11-23 22:34:51,889 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-23 22:34:51,893 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-23 22:34:51,894 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-23 22:34:51,894 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-23 22:34:51,895 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:51" (1/1) ...
[2024-11-23 22:34:51,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 22:34:51,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ea6e40-8421-4fdb-a2da-785cfbb69c10/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 22:34:51,938 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ea6e40-8421-4fdb-a2da-785cfbb69c10/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-23 22:34:51,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ea6e40-8421-4fdb-a2da-785cfbb69c10/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-23 22:34:51,968 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2024-11-23 22:34:51,968 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2024-11-23 22:34:51,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-11-23 22:34:51,968 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2024-11-23 22:34:51,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0
[2024-11-23 22:34:51,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1
[2024-11-23 22:34:51,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2
[2024-11-23 22:34:51,969 INFO L130 BoogieDeclarations]: Found specification of procedure setThread
[2024-11-23 22:34:51,970 INFO L138 BoogieDeclarations]: Found implementation of procedure setThread
[2024-11-23 22:34:51,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0
[2024-11-23 22:34:51,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1
[2024-11-23 22:34:51,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2
[2024-11-23 22:34:51,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-23 22:34:51,970 INFO L130 BoogieDeclarations]: Found specification of procedure checkThread
[2024-11-23 22:34:51,970 INFO L138 BoogieDeclarations]: Found implementation of procedure checkThread
[2024-11-23 22:34:51,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-23 22:34:51,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1
[2024-11-23 22:34:51,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2
[2024-11-23 22:34:51,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-23 22:34:51,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-23 22:34:51,973 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement.
[2024-11-23 22:34:52,155 INFO L234 CfgBuilder]: Building ICFG
[2024-11-23 22:34:52,156 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-23 22:34:52,482 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program.
[2024-11-23 22:34:52,482 INFO L283 CfgBuilder]: Performing block encoding
[2024-11-23 22:34:52,664 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-23 22:34:52,664 INFO L312 CfgBuilder]: Removed 4 assume(true) statements.
[2024-11-23 22:34:52,665 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:34:52 BoogieIcfgContainer
[2024-11-23 22:34:52,665 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-23 22:34:52,667 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-23 22:34:52,669 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-23 22:34:52,676 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-23 22:34:52,676 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:34:50" (1/3) ...
[2024-11-23 22:34:52,677 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ce19439 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:34:52, skipping insertion in model container
[2024-11-23 22:34:52,677 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:51" (2/3) ...
[2024-11-23 22:34:52,678 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ce19439 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:34:52, skipping insertion in model container
[2024-11-23 22:34:52,678 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:34:52" (3/3) ...
[2024-11-23 22:34:52,681 INFO L128 eAbstractionObserver]: Analyzing ICFG reorder_2-2.i
[2024-11-23 22:34:52,694 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-23 22:34:52,696 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG reorder_2-2.i that has 3 procedures, 50 locations, 1 initial locations, 4 loop locations, and 12 error locations.
[2024-11-23 22:34:52,696 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2024-11-23 22:34:52,759 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions.
[2024-11-23 22:34:52,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 56 places, 59 transitions, 138 flow
[2024-11-23 22:34:52,897 INFO L124 PetriNetUnfolderBase]: 14/137 cut-off events.
[2024-11-23 22:34:52,899 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES.
[2024-11-23 22:34:52,906 INFO L83 FinitePrefix]: Finished finitePrefix Result has 154 conditions, 137 events. 14/137 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 660 event pairs, 0 based on Foata normal form. 0/81 useless extension candidates. Maximal degree in co-relation 69. Up to 7 conditions per place.
[2024-11-23 22:34:52,906 INFO L82 GeneralOperation]: Start removeDead. Operand has 56 places, 59 transitions, 138 flow
[2024-11-23 22:34:52,914 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 56 places, 59 transitions, 138 flow
[2024-11-23 22:34:52,925 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-23 22:34:52,941 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;@7708d368, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-23 22:34:52,944 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations.
[2024-11-23 22:34:52,950 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2024-11-23 22:34:52,952 INFO L124 PetriNetUnfolderBase]: 1/6 cut-off events.
[2024-11-23 22:34:52,952 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-11-23 22:34:52,952 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-23 22:34:52,953 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1]
[2024-11-23 22:34:52,953 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX === [checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr1ASSERT_VIOLATIONARRAY_INDEX (and 12 more)] ===
[2024-11-23 22:34:52,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:34:52,960 INFO L85 PathProgramCache]: Analyzing trace with hash 11622238, now seen corresponding path program 1 times
[2024-11-23 22:34:52,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 22:34:52,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591231324]
[2024-11-23 22:34:52,970 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:34:52,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 22:34:53,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:34:53,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 22:34:53,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 22:34:53,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591231324]
[2024-11-23 22:34:53,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591231324] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 22:34:53,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 22:34:53,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2024-11-23 22:34:53,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612739955]
[2024-11-23 22:34:53,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 22:34:53,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-23 22:34:53,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 22:34:53,198 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-23 22:34:53,199 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-23 22:34:53,201 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 59
[2024-11-23 22:34:53,203 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 59 transitions, 138 flow. Second operand has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 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)
[2024-11-23 22:34:53,203 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-23 22:34:53,204 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 59
[2024-11-23 22:34:53,204 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-23 22:34:53,368 INFO L124 PetriNetUnfolderBase]: 86/377 cut-off events.
[2024-11-23 22:34:53,368 INFO L125 PetriNetUnfolderBase]: For 46/46 co-relation queries the response was YES.
[2024-11-23 22:34:53,370 INFO L83 FinitePrefix]: Finished finitePrefix Result has 592 conditions, 377 events. 86/377 cut-off events. For 46/46 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2582 event pairs, 71 based on Foata normal form. 44/295 useless extension candidates. Maximal degree in co-relation 375. Up to 190 conditions per place.
[2024-11-23 22:34:53,376 INFO L140 encePairwiseOnDemand]: 54/59 looper letters, 24 selfloop transitions, 0 changer transitions 0/53 dead transitions.
[2024-11-23 22:34:53,412 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 53 transitions, 174 flow
[2024-11-23 22:34:53,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-11-23 22:34:53,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states.
[2024-11-23 22:34:53,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 87 transitions.
[2024-11-23 22:34:53,428 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7372881355932204
[2024-11-23 22:34:53,430 INFO L175 Difference]: Start difference. First operand has 56 places, 59 transitions, 138 flow. Second operand 2 states and 87 transitions.
[2024-11-23 22:34:53,431 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 53 transitions, 174 flow
[2024-11-23 22:34:53,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 53 transitions, 174 flow, removed 0 selfloop flow, removed 0 redundant places.
[2024-11-23 22:34:53,442 INFO L231 Difference]: Finished difference. Result has 54 places, 53 transitions, 126 flow
[2024-11-23 22:34:53,445 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=126, PETRI_PLACES=54, PETRI_TRANSITIONS=53}
[2024-11-23 22:34:53,452 INFO L279 CegarLoopForPetriNet]: 56 programPoint places, -2 predicate places.
[2024-11-23 22:34:53,452 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 53 transitions, 126 flow
[2024-11-23 22:34:53,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 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)
[2024-11-23 22:34:53,454 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-23 22:34:53,455 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1]
[2024-11-23 22:34:53,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-23 22:34:53,455 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr1ASSERT_VIOLATIONARRAY_INDEX (and 12 more)] ===
[2024-11-23 22:34:53,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:34:53,456 INFO L85 PathProgramCache]: Analyzing trace with hash 360288688, now seen corresponding path program 1 times
[2024-11-23 22:34:53,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 22:34:53,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746428208]
[2024-11-23 22:34:53,456 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:34:53,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 22:34:53,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:34:53,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 22:34:53,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 22:34:53,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746428208]
[2024-11-23 22:34:53,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746428208] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 22:34:53,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 22:34:53,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-23 22:34:53,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037338119]
[2024-11-23 22:34:53,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 22:34:53,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-23 22:34:53,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 22:34:53,719 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-23 22:34:53,720 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-23 22:34:53,762 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 59
[2024-11-23 22:34:53,763 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 53 transitions, 126 flow. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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)
[2024-11-23 22:34:53,763 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-23 22:34:53,763 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 59
[2024-11-23 22:34:53,763 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-23 22:34:53,922 INFO L124 PetriNetUnfolderBase]: 97/370 cut-off events.
[2024-11-23 22:34:53,922 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES.
[2024-11-23 22:34:53,924 INFO L83 FinitePrefix]: Finished finitePrefix Result has 612 conditions, 370 events. 97/370 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 2470 event pairs, 65 based on Foata normal form. 0/273 useless extension candidates. Maximal degree in co-relation 607. Up to 168 conditions per place.
[2024-11-23 22:34:53,926 INFO L140 encePairwiseOnDemand]: 55/59 looper letters, 27 selfloop transitions, 2 changer transitions 0/54 dead transitions.
[2024-11-23 22:34:53,926 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 54 transitions, 186 flow
[2024-11-23 22:34:53,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-23 22:34:53,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-11-23 22:34:53,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 106 transitions.
[2024-11-23 22:34:53,932 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5988700564971752
[2024-11-23 22:34:53,932 INFO L175 Difference]: Start difference. First operand has 54 places, 53 transitions, 126 flow. Second operand 3 states and 106 transitions.
[2024-11-23 22:34:53,932 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 54 transitions, 186 flow
[2024-11-23 22:34:53,934 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 54 transitions, 186 flow, removed 0 selfloop flow, removed 0 redundant places.
[2024-11-23 22:34:53,938 INFO L231 Difference]: Finished difference. Result has 54 places, 51 transitions, 126 flow
[2024-11-23 22:34:53,938 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=126, PETRI_PLACES=54, PETRI_TRANSITIONS=51}
[2024-11-23 22:34:53,939 INFO L279 CegarLoopForPetriNet]: 56 programPoint places, -2 predicate places.
[2024-11-23 22:34:53,939 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 51 transitions, 126 flow
[2024-11-23 22:34:53,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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)
[2024-11-23 22:34:53,941 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-23 22:34:53,941 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1]
[2024-11-23 22:34:53,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-23 22:34:53,941 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr1ASSERT_VIOLATIONARRAY_INDEX (and 12 more)] ===
[2024-11-23 22:34:53,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:34:53,942 INFO L85 PathProgramCache]: Analyzing trace with hash 360288689, now seen corresponding path program 1 times
[2024-11-23 22:34:53,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 22:34:53,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036475116]
[2024-11-23 22:34:53,942 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:34:53,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 22:34:53,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:34:54,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 22:34:54,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 22:34:54,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036475116]
[2024-11-23 22:34:54,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036475116] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 22:34:54,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 22:34:54,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-23 22:34:54,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203654498]
[2024-11-23 22:34:54,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 22:34:54,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-23 22:34:54,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 22:34:54,306 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-23 22:34:54,306 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-23 22:34:54,420 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 59
[2024-11-23 22:34:54,422 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 51 transitions, 126 flow. Second operand has 5 states, 5 states have (on average 27.8) internal successors, (139), 5 states have internal predecessors, (139), 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)
[2024-11-23 22:34:54,422 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-23 22:34:54,422 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 59
[2024-11-23 22:34:54,422 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-23 22:34:54,745 INFO L124 PetriNetUnfolderBase]: 184/699 cut-off events.
[2024-11-23 22:34:54,745 INFO L125 PetriNetUnfolderBase]: For 92/92 co-relation queries the response was YES.
[2024-11-23 22:34:54,747 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1180 conditions, 699 events. 184/699 cut-off events. For 92/92 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 5600 event pairs, 124 based on Foata normal form. 1/528 useless extension candidates. Maximal degree in co-relation 1174. Up to 215 conditions per place.
[2024-11-23 22:34:54,751 INFO L140 encePairwiseOnDemand]: 53/59 looper letters, 47 selfloop transitions, 4 changer transitions 0/76 dead transitions.
[2024-11-23 22:34:54,751 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 76 transitions, 300 flow
[2024-11-23 22:34:54,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-23 22:34:54,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-11-23 22:34:54,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 161 transitions.
[2024-11-23 22:34:54,754 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6822033898305084
[2024-11-23 22:34:54,754 INFO L175 Difference]: Start difference. First operand has 54 places, 51 transitions, 126 flow. Second operand 4 states and 161 transitions.
[2024-11-23 22:34:54,754 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 76 transitions, 300 flow
[2024-11-23 22:34:54,756 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 76 transitions, 292 flow, removed 0 selfloop flow, removed 2 redundant places.
[2024-11-23 22:34:54,760 INFO L231 Difference]: Finished difference. Result has 57 places, 53 transitions, 148 flow
[2024-11-23 22:34:54,761 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=148, PETRI_PLACES=57, PETRI_TRANSITIONS=53}
[2024-11-23 22:34:54,762 INFO L279 CegarLoopForPetriNet]: 56 programPoint places, 1 predicate places.
[2024-11-23 22:34:54,762 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 53 transitions, 148 flow
[2024-11-23 22:34:54,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 5 states have internal predecessors, (139), 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)
[2024-11-23 22:34:54,763 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-23 22:34:54,763 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 22:34:54,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-23 22:34:54,763 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr1ASSERT_VIOLATIONARRAY_INDEX (and 12 more)] ===
[2024-11-23 22:34:54,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:34:54,765 INFO L85 PathProgramCache]: Analyzing trace with hash 268606299, now seen corresponding path program 1 times
[2024-11-23 22:34:54,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 22:34:54,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24704443]
[2024-11-23 22:34:54,765 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:34:54,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 22:34:54,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-23 22:34:54,793 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-23 22:34:54,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-23 22:34:54,824 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-11-23 22:34:54,824 INFO L340 BasicCegarLoop]: Counterexample is feasible
[2024-11-23 22:34:54,825 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 15 remaining)
[2024-11-23 22:34:54,827 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK (13 of 15 remaining)
[2024-11-23 22:34:54,827 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX (12 of 15 remaining)
[2024-11-23 22:34:54,827 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONARRAY_INDEX (11 of 15 remaining)
[2024-11-23 22:34:54,827 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 15 remaining)
[2024-11-23 22:34:54,827 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 15 remaining)
[2024-11-23 22:34:54,828 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 15 remaining)
[2024-11-23 22:34:54,828 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 15 remaining)
[2024-11-23 22:34:54,828 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 15 remaining)
[2024-11-23 22:34:54,828 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 15 remaining)
[2024-11-23 22:34:54,828 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 15 remaining)
[2024-11-23 22:34:54,828 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK (3 of 15 remaining)
[2024-11-23 22:34:54,828 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 15 remaining)
[2024-11-23 22:34:54,828 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 15 remaining)
[2024-11-23 22:34:54,828 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 15 remaining)
[2024-11-23 22:34:54,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-23 22:34:54,829 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2024-11-23 22:34:54,852 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances
[2024-11-23 22:34:54,852 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-11-23 22:34:54,857 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 10:34:54 BasicIcfg
[2024-11-23 22:34:54,858 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-23 22:34:54,858 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-23 22:34:54,858 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-11-23 22:34:54,859 INFO L274 PluginConnector]: Witness Printer initialized
[2024-11-23 22:34:54,860 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:34:52" (3/4) ...
[2024-11-23 22:34:54,862 INFO L149 WitnessPrinter]: No result that supports witness generation found
[2024-11-23 22:34:54,863 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-23 22:34:54,864 INFO L158 Benchmark]: Toolchain (without parser) took 4123.58ms. Allocated memory was 117.4MB in the beginning and 176.2MB in the end (delta: 58.7MB). Free memory was 90.4MB in the beginning and 112.6MB in the end (delta: -22.3MB). Peak memory consumption was 35.1MB. Max. memory is 16.1GB.
[2024-11-23 22:34:54,866 INFO L158 Benchmark]: CDTParser took 1.25ms. Allocated memory is still 117.4MB. Free memory was 73.3MB in the beginning and 73.1MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-23 22:34:54,866 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1003.60ms. Allocated memory is still 117.4MB. Free memory was 90.1MB in the beginning and 51.7MB in the end (delta: 38.4MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB.
[2024-11-23 22:34:54,867 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.99ms. Allocated memory is still 117.4MB. Free memory was 51.7MB in the beginning and 49.1MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-23 22:34:54,867 INFO L158 Benchmark]: Boogie Preprocessor took 81.71ms. Allocated memory is still 117.4MB. Free memory was 49.1MB in the beginning and 47.2MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-23 22:34:54,868 INFO L158 Benchmark]: RCFGBuilder took 771.38ms. Allocated memory is still 117.4MB. Free memory was 46.9MB in the beginning and 71.9MB in the end (delta: -25.0MB). Peak memory consumption was 21.9MB. Max. memory is 16.1GB.
[2024-11-23 22:34:54,868 INFO L158 Benchmark]: TraceAbstraction took 2191.00ms. Allocated memory was 117.4MB in the beginning and 176.2MB in the end (delta: 58.7MB). Free memory was 71.3MB in the beginning and 112.7MB in the end (delta: -41.3MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB.
[2024-11-23 22:34:54,869 INFO L158 Benchmark]: Witness Printer took 4.87ms. Allocated memory is still 176.2MB. Free memory was 112.7MB in the beginning and 112.6MB in the end (delta: 13.7kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-23 22:34:54,871 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 1.25ms. Allocated memory is still 117.4MB. Free memory was 73.3MB in the beginning and 73.1MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 1003.60ms. Allocated memory is still 117.4MB. Free memory was 90.1MB in the beginning and 51.7MB in the end (delta: 38.4MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 63.99ms. Allocated memory is still 117.4MB. Free memory was 51.7MB in the beginning and 49.1MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 81.71ms. Allocated memory is still 117.4MB. Free memory was 49.1MB in the beginning and 47.2MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 771.38ms. Allocated memory is still 117.4MB. Free memory was 46.9MB in the beginning and 71.9MB in the end (delta: -25.0MB). Peak memory consumption was 21.9MB. Max. memory is 16.1GB.
* TraceAbstraction took 2191.00ms. Allocated memory was 117.4MB in the beginning and 176.2MB in the end (delta: 58.7MB). Free memory was 71.3MB in the beginning and 112.7MB in the end (delta: -41.3MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB.
* Witness Printer took 4.87ms. Allocated memory is still 176.2MB. Free memory was 112.7MB in the beginning and 112.6MB in the end (delta: 13.7kB). There was no memory consumed. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: overapproximation of sscanf at line 1253, overapproximation of sscanf at line 1254.
Possible FailurePath:
[L1238] static int iSet = 2;
[L1239] static int iCheck = 2;
[L1240] static int a = 0;
[L1241] static int b = 0;
[L1247] int i, err;
VAL [\old(argc)=3, \old(argv)={1073741825:1073741826}, a=0, argc=3, b=0, iCheck=2, iSet=2]
[L1248] COND TRUE argc != 1
VAL [\old(argc)=3, \old(argv)={1073741825:1073741826}, a=0, argc=3, b=0, iCheck=2, iSet=2]
[L1249] COND FALSE !(argc != 3)
VAL [\old(argc)=3, \old(argv)={1073741825:1073741826}, a=0, argc=3, b=0, iCheck=2, iSet=2]
[L1253] argv[1]
[L1254] argv[2]
[L1257] pthread_t setPool[iSet];
[L1258] pthread_t checkPool[iCheck];
[L1259] i = 0
VAL [\old(argc)=3, \old(argv)={1073741825:1073741826}, a=0, argc=3, b=0, checkPool={5:0}, i=0, iCheck=0, iSet=1073741824, setPool={4:0}]
[L1259] COND TRUE i < iSet
- UnprovableResult [Line: 20]: Unable to prove that all allocated memory was freed
Unable to prove that all allocated memory was freed
Reason: Not analyzed.
- UnprovableResult [Line: 1253]: Unable to prove that array index is always in bounds
Unable to prove that array index is always in bounds
Reason: Not analyzed.
- UnprovableResult [Line: 1254]: Unable to prove that array index is always in bounds
Unable to prove that array index is always in bounds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: 1246]: Unable to prove that all allocated memory was freed
Unable to prove that all allocated memory was freed
Reason: Not analyzed.
- UnprovableResult [Line: 1260]: Unable to prove that petrification did provide enough thread instances (tool internal message)
Unable to prove that petrification did provide enough thread instances (tool internal message)
Reason: Not analyzed.
- UnprovableResult [Line: 1266]: Unable to prove that petrification did provide enough thread instances (tool internal message)
Unable to prove that petrification did provide enough thread instances (tool internal message)
Reason: Not analyzed.
- StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances
CFG has 5 procedures, 67 locations, 15 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.0s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 119 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 80 mSDsluCounter, 15 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 287 IncrementalHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 4 mSDtfsCounter, 287 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=148occurred in iteration=3, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 48 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available
RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces
[2024-11-23 22:34:54,897 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ea6e40-8421-4fdb-a2da-785cfbb69c10/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Using bit-precise analysis
Retrying with bit-precise analysis
### Bit-precise run ###
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ea6e40-8421-4fdb-a2da-785cfbb69c10/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ea6e40-8421-4fdb-a2da-785cfbb69c10/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_02ea6e40-8421-4fdb-a2da-785cfbb69c10/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ea6e40-8421-4fdb-a2da-785cfbb69c10/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread/reorder_2-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ea6e40-8421-4fdb-a2da-785cfbb69c10/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ea6e40-8421-4fdb-a2da-785cfbb69c10/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 3383b6c07cf534421a7126af6d1505c2131b6416498f0a6ca41b356029c5a1e0
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-6497de0
[2024-11-23 22:34:57,658 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-23 22:34:57,774 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ea6e40-8421-4fdb-a2da-785cfbb69c10/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf
[2024-11-23 22:34:57,780 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-23 22:34:57,781 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-23 22:34:57,846 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-23 22:34:57,852 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-23 22:34:57,853 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-23 22:34:57,853 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-23 22:34:57,853 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-23 22:34:57,853 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-23 22:34:57,853 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-23 22:34:57,854 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-23 22:34:57,854 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-23 22:34:57,854 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-23 22:34:57,854 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-23 22:34:57,854 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-23 22:34:57,854 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-23 22:34:57,855 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-23 22:34:57,855 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-23 22:34:57,861 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true
[2024-11-23 22:34:57,861 INFO L153 SettingsManager]: * Bitprecise bitfields=true
[2024-11-23 22:34:57,861 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true
[2024-11-23 22:34:57,861 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-23 22:34:57,861 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2024-11-23 22:34:57,861 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true
[2024-11-23 22:34:57,862 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-23 22:34:57,862 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-11-23 22:34:57,862 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-23 22:34:57,862 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-11-23 22:34:57,862 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-23 22:34:57,862 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-11-23 22:34:57,862 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-23 22:34:57,862 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-23 22:34:57,862 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-23 22:34:57,862 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 22:34:57,863 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-23 22:34:57,863 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-23 22:34:57,863 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-23 22:34:57,863 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-23 22:34:57,863 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 22:34:57,863 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-23 22:34:57,863 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-23 22:34:57,863 INFO L153 SettingsManager]: * Trace refinement strategy=FOX
[2024-11-23 22:34:57,863 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-23 22:34:57,863 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-23 22:34:57,864 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-23 22:34:57,864 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-23 22:34:57,864 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-23 22:34:57,864 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_02ea6e40-8421-4fdb-a2da-785cfbb69c10/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 -> 3383b6c07cf534421a7126af6d1505c2131b6416498f0a6ca41b356029c5a1e0
[2024-11-23 22:34:58,206 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-23 22:34:58,220 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-23 22:34:58,222 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-23 22:34:58,224 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-23 22:34:58,224 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-23 22:34:58,226 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ea6e40-8421-4fdb-a2da-785cfbb69c10/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/pthread/reorder_2-2.i
[2024-11-23 22:35:01,163 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ea6e40-8421-4fdb-a2da-785cfbb69c10/bin/uautomizer-verify-LYvppIcaGC/data/7213cb20a/1737f1b66ba44003b90a3659e2ef20af/FLAG8776eb15b
[2024-11-23 22:35:01,627 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-23 22:35:01,630 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ea6e40-8421-4fdb-a2da-785cfbb69c10/sv-benchmarks/c/pthread/reorder_2-2.i
[2024-11-23 22:35:01,662 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ea6e40-8421-4fdb-a2da-785cfbb69c10/bin/uautomizer-verify-LYvppIcaGC/data/7213cb20a/1737f1b66ba44003b90a3659e2ef20af/FLAG8776eb15b
[2024-11-23 22:35:01,750 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ea6e40-8421-4fdb-a2da-785cfbb69c10/bin/uautomizer-verify-LYvppIcaGC/data/7213cb20a/1737f1b66ba44003b90a3659e2ef20af
[2024-11-23 22:35:01,753 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-23 22:35:01,754 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-23 22:35:01,755 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-23 22:35:01,756 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-23 22:35:01,761 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-23 22:35:01,762 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:35:01" (1/1) ...
[2024-11-23 22:35:01,764 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@221e6ecc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:01, skipping insertion in model container
[2024-11-23 22:35:01,764 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:35:01" (1/1) ...
[2024-11-23 22:35:01,826 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-23 22:35:02,472 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-23 22:35:02,488 INFO L200 MainTranslator]: Completed pre-run
[2024-11-23 22:35:02,575 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-23 22:35:02,684 INFO L204 MainTranslator]: Completed translation
[2024-11-23 22:35:02,685 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:02 WrapperNode
[2024-11-23 22:35:02,686 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-23 22:35:02,688 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-23 22:35:02,688 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-23 22:35:02,688 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-23 22:35:02,697 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:02" (1/1) ...
[2024-11-23 22:35:02,725 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:02" (1/1) ...
[2024-11-23 22:35:02,761 INFO L138 Inliner]: procedures = 375, calls = 27, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 132
[2024-11-23 22:35:02,763 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-23 22:35:02,764 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-23 22:35:02,764 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-23 22:35:02,764 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-23 22:35:02,774 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:02" (1/1) ...
[2024-11-23 22:35:02,775 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:02" (1/1) ...
[2024-11-23 22:35:02,781 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:02" (1/1) ...
[2024-11-23 22:35:02,810 INFO L175 MemorySlicer]: Split 6 memory accesses to 3 slices as follows [2, 2, 2]. 33 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 2 writes are split as follows [0, 1, 1].
[2024-11-23 22:35:02,810 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:02" (1/1) ...
[2024-11-23 22:35:02,811 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:02" (1/1) ...
[2024-11-23 22:35:02,822 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:02" (1/1) ...
[2024-11-23 22:35:02,823 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:02" (1/1) ...
[2024-11-23 22:35:02,834 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:02" (1/1) ...
[2024-11-23 22:35:02,836 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:02" (1/1) ...
[2024-11-23 22:35:02,841 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:02" (1/1) ...
[2024-11-23 22:35:02,844 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-23 22:35:02,849 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-23 22:35:02,849 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-23 22:35:02,849 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-23 22:35:02,850 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:02" (1/1) ...
[2024-11-23 22:35:02,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 22:35:02,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ea6e40-8421-4fdb-a2da-785cfbb69c10/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 22:35:02,923 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ea6e40-8421-4fdb-a2da-785cfbb69c10/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-23 22:35:02,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ea6e40-8421-4fdb-a2da-785cfbb69c10/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-23 22:35:02,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0
[2024-11-23 22:35:02,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1
[2024-11-23 22:35:02,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2
[2024-11-23 22:35:02,960 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2024-11-23 22:35:02,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2024-11-23 22:35:02,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-11-23 22:35:02,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0
[2024-11-23 22:35:02,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1
[2024-11-23 22:35:02,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2
[2024-11-23 22:35:02,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-23 22:35:02,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1
[2024-11-23 22:35:02,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2
[2024-11-23 22:35:02,960 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2024-11-23 22:35:02,961 INFO L130 BoogieDeclarations]: Found specification of procedure setThread
[2024-11-23 22:35:02,961 INFO L138 BoogieDeclarations]: Found implementation of procedure setThread
[2024-11-23 22:35:02,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-23 22:35:02,961 INFO L130 BoogieDeclarations]: Found specification of procedure checkThread
[2024-11-23 22:35:02,961 INFO L138 BoogieDeclarations]: Found implementation of procedure checkThread
[2024-11-23 22:35:02,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-23 22:35:02,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-23 22:35:02,963 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement.
[2024-11-23 22:35:03,154 INFO L234 CfgBuilder]: Building ICFG
[2024-11-23 22:35:03,156 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-23 22:35:03,603 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program.
[2024-11-23 22:35:03,604 INFO L283 CfgBuilder]: Performing block encoding
[2024-11-23 22:35:03,859 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-23 22:35:03,860 INFO L312 CfgBuilder]: Removed 4 assume(true) statements.
[2024-11-23 22:35:03,860 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:35:03 BoogieIcfgContainer
[2024-11-23 22:35:03,860 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-23 22:35:03,863 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-23 22:35:03,863 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-23 22:35:03,869 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-23 22:35:03,869 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:35:01" (1/3) ...
[2024-11-23 22:35:03,870 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3261c806 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:35:03, skipping insertion in model container
[2024-11-23 22:35:03,871 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:02" (2/3) ...
[2024-11-23 22:35:03,872 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3261c806 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:35:03, skipping insertion in model container
[2024-11-23 22:35:03,872 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:35:03" (3/3) ...
[2024-11-23 22:35:03,874 INFO L128 eAbstractionObserver]: Analyzing ICFG reorder_2-2.i
[2024-11-23 22:35:03,893 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-23 22:35:03,895 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG reorder_2-2.i that has 3 procedures, 50 locations, 1 initial locations, 4 loop locations, and 12 error locations.
[2024-11-23 22:35:03,895 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2024-11-23 22:35:03,982 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions.
[2024-11-23 22:35:04,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 56 places, 59 transitions, 138 flow
[2024-11-23 22:35:04,150 INFO L124 PetriNetUnfolderBase]: 14/137 cut-off events.
[2024-11-23 22:35:04,154 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES.
[2024-11-23 22:35:04,159 INFO L83 FinitePrefix]: Finished finitePrefix Result has 154 conditions, 137 events. 14/137 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 664 event pairs, 0 based on Foata normal form. 0/81 useless extension candidates. Maximal degree in co-relation 69. Up to 7 conditions per place.
[2024-11-23 22:35:04,159 INFO L82 GeneralOperation]: Start removeDead. Operand has 56 places, 59 transitions, 138 flow
[2024-11-23 22:35:04,166 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 56 places, 59 transitions, 138 flow
[2024-11-23 22:35:04,176 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-23 22:35:04,189 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;@18da35, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-23 22:35:04,189 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations.
[2024-11-23 22:35:04,194 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2024-11-23 22:35:04,195 INFO L124 PetriNetUnfolderBase]: 1/6 cut-off events.
[2024-11-23 22:35:04,195 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-11-23 22:35:04,195 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-23 22:35:04,196 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1]
[2024-11-23 22:35:04,196 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX === [checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr1ASSERT_VIOLATIONARRAY_INDEX (and 12 more)] ===
[2024-11-23 22:35:04,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:35:04,202 INFO L85 PathProgramCache]: Analyzing trace with hash 11560670, now seen corresponding path program 1 times
[2024-11-23 22:35:04,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 22:35:04,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1143700890]
[2024-11-23 22:35:04,214 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:35:04,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:35:04,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ea6e40-8421-4fdb-a2da-785cfbb69c10/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 22:35:04,219 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ea6e40-8421-4fdb-a2da-785cfbb69c10/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 22:35:04,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ea6e40-8421-4fdb-a2da-785cfbb69c10/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-23 22:35:04,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:35:04,331 INFO L256 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-23 22:35:04,335 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 22:35:04,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 22:35:04,354 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 22:35:04,355 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 22:35:04,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1143700890]
[2024-11-23 22:35:04,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1143700890] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 22:35:04,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 22:35:04,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2024-11-23 22:35:04,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724381782]
[2024-11-23 22:35:04,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 22:35:04,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-23 22:35:04,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 22:35:04,400 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-23 22:35:04,401 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-23 22:35:04,404 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 59
[2024-11-23 22:35:04,407 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 59 transitions, 138 flow. Second operand has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 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)
[2024-11-23 22:35:04,407 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-23 22:35:04,408 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 59
[2024-11-23 22:35:04,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-23 22:35:04,656 INFO L124 PetriNetUnfolderBase]: 86/377 cut-off events.
[2024-11-23 22:35:04,660 INFO L125 PetriNetUnfolderBase]: For 46/46 co-relation queries the response was YES.
[2024-11-23 22:35:04,662 INFO L83 FinitePrefix]: Finished finitePrefix Result has 592 conditions, 377 events. 86/377 cut-off events. For 46/46 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2581 event pairs, 71 based on Foata normal form. 44/295 useless extension candidates. Maximal degree in co-relation 375. Up to 190 conditions per place.
[2024-11-23 22:35:04,665 INFO L140 encePairwiseOnDemand]: 54/59 looper letters, 24 selfloop transitions, 0 changer transitions 0/53 dead transitions.
[2024-11-23 22:35:04,669 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 53 transitions, 174 flow
[2024-11-23 22:35:04,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-11-23 22:35:04,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states.
[2024-11-23 22:35:04,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 87 transitions.
[2024-11-23 22:35:04,694 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7372881355932204
[2024-11-23 22:35:04,696 INFO L175 Difference]: Start difference. First operand has 56 places, 59 transitions, 138 flow. Second operand 2 states and 87 transitions.
[2024-11-23 22:35:04,697 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 53 transitions, 174 flow
[2024-11-23 22:35:04,703 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 53 transitions, 174 flow, removed 0 selfloop flow, removed 0 redundant places.
[2024-11-23 22:35:04,709 INFO L231 Difference]: Finished difference. Result has 54 places, 53 transitions, 126 flow
[2024-11-23 22:35:04,712 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=126, PETRI_PLACES=54, PETRI_TRANSITIONS=53}
[2024-11-23 22:35:04,717 INFO L279 CegarLoopForPetriNet]: 56 programPoint places, -2 predicate places.
[2024-11-23 22:35:04,718 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 53 transitions, 126 flow
[2024-11-23 22:35:04,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 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)
[2024-11-23 22:35:04,719 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-23 22:35:04,719 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1]
[2024-11-23 22:35:04,731 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ea6e40-8421-4fdb-a2da-785cfbb69c10/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2024-11-23 22:35:04,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ea6e40-8421-4fdb-a2da-785cfbb69c10/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:35:04,920 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr1ASSERT_VIOLATIONARRAY_INDEX (and 12 more)] ===
[2024-11-23 22:35:04,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:35:04,921 INFO L85 PathProgramCache]: Analyzing trace with hash 358380078, now seen corresponding path program 1 times
[2024-11-23 22:35:04,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 22:35:04,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [959937146]
[2024-11-23 22:35:04,922 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:35:04,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:35:04,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ea6e40-8421-4fdb-a2da-785cfbb69c10/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 22:35:04,924 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ea6e40-8421-4fdb-a2da-785cfbb69c10/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 22:35:04,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ea6e40-8421-4fdb-a2da-785cfbb69c10/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-23 22:35:05,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:35:05,032 INFO L256 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-23 22:35:05,034 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 22:35:05,118 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size
[2024-11-23 22:35:05,119 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15
[2024-11-23 22:35:05,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 22:35:05,169 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 22:35:05,170 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 22:35:05,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [959937146]
[2024-11-23 22:35:05,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [959937146] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 22:35:05,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 22:35:05,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-23 22:35:05,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140547071]
[2024-11-23 22:35:05,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 22:35:05,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-23 22:35:05,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 22:35:05,172 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-23 22:35:05,172 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-23 22:35:05,257 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 59
[2024-11-23 22:35:05,258 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 53 transitions, 126 flow. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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)
[2024-11-23 22:35:05,259 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-23 22:35:05,259 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 59
[2024-11-23 22:35:05,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-23 22:35:05,474 INFO L124 PetriNetUnfolderBase]: 97/370 cut-off events.
[2024-11-23 22:35:05,474 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES.
[2024-11-23 22:35:05,476 INFO L83 FinitePrefix]: Finished finitePrefix Result has 612 conditions, 370 events. 97/370 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 2477 event pairs, 65 based on Foata normal form. 0/273 useless extension candidates. Maximal degree in co-relation 607. Up to 168 conditions per place.
[2024-11-23 22:35:05,481 INFO L140 encePairwiseOnDemand]: 55/59 looper letters, 27 selfloop transitions, 2 changer transitions 0/54 dead transitions.
[2024-11-23 22:35:05,483 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 54 transitions, 186 flow
[2024-11-23 22:35:05,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-23 22:35:05,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-11-23 22:35:05,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 106 transitions.
[2024-11-23 22:35:05,485 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5988700564971752
[2024-11-23 22:35:05,485 INFO L175 Difference]: Start difference. First operand has 54 places, 53 transitions, 126 flow. Second operand 3 states and 106 transitions.
[2024-11-23 22:35:05,485 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 54 transitions, 186 flow
[2024-11-23 22:35:05,488 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 54 transitions, 186 flow, removed 0 selfloop flow, removed 0 redundant places.
[2024-11-23 22:35:05,491 INFO L231 Difference]: Finished difference. Result has 54 places, 51 transitions, 126 flow
[2024-11-23 22:35:05,491 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=126, PETRI_PLACES=54, PETRI_TRANSITIONS=51}
[2024-11-23 22:35:05,493 INFO L279 CegarLoopForPetriNet]: 56 programPoint places, -2 predicate places.
[2024-11-23 22:35:05,493 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 51 transitions, 126 flow
[2024-11-23 22:35:05,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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)
[2024-11-23 22:35:05,494 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-23 22:35:05,494 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1]
[2024-11-23 22:35:05,505 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ea6e40-8421-4fdb-a2da-785cfbb69c10/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2024-11-23 22:35:05,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ea6e40-8421-4fdb-a2da-785cfbb69c10/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:35:05,698 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr1ASSERT_VIOLATIONARRAY_INDEX (and 12 more)] ===
[2024-11-23 22:35:05,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:35:05,699 INFO L85 PathProgramCache]: Analyzing trace with hash 358380079, now seen corresponding path program 1 times
[2024-11-23 22:35:05,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 22:35:05,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1763886385]
[2024-11-23 22:35:05,700 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:35:05,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:35:05,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ea6e40-8421-4fdb-a2da-785cfbb69c10/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 22:35:05,702 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ea6e40-8421-4fdb-a2da-785cfbb69c10/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 22:35:05,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ea6e40-8421-4fdb-a2da-785cfbb69c10/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-23 22:35:05,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:35:05,816 INFO L256 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 8 conjuncts are in the unsatisfiable core
[2024-11-23 22:35:05,819 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 22:35:05,905 INFO L349 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size
[2024-11-23 22:35:05,905 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 11
[2024-11-23 22:35:06,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 22:35:06,014 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 22:35:06,016 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 22:35:06,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1763886385]
[2024-11-23 22:35:06,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1763886385] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 22:35:06,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 22:35:06,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-23 22:35:06,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143308588]
[2024-11-23 22:35:06,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 22:35:06,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-23 22:35:06,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 22:35:06,019 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-23 22:35:06,020 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-23 22:35:06,163 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 59
[2024-11-23 22:35:06,163 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 51 transitions, 126 flow. Second operand has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 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)
[2024-11-23 22:35:06,163 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-23 22:35:06,163 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 59
[2024-11-23 22:35:06,163 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-23 22:35:06,640 INFO L124 PetriNetUnfolderBase]: 184/699 cut-off events.
[2024-11-23 22:35:06,641 INFO L125 PetriNetUnfolderBase]: For 92/92 co-relation queries the response was YES.
[2024-11-23 22:35:06,643 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1180 conditions, 699 events. 184/699 cut-off events. For 92/92 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 5605 event pairs, 159 based on Foata normal form. 1/525 useless extension candidates. Maximal degree in co-relation 1174. Up to 215 conditions per place.
[2024-11-23 22:35:06,648 INFO L140 encePairwiseOnDemand]: 53/59 looper letters, 47 selfloop transitions, 4 changer transitions 0/76 dead transitions.
[2024-11-23 22:35:06,648 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 76 transitions, 300 flow
[2024-11-23 22:35:06,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-23 22:35:06,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-11-23 22:35:06,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 161 transitions.
[2024-11-23 22:35:06,651 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6822033898305084
[2024-11-23 22:35:06,651 INFO L175 Difference]: Start difference. First operand has 54 places, 51 transitions, 126 flow. Second operand 4 states and 161 transitions.
[2024-11-23 22:35:06,651 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 76 transitions, 300 flow
[2024-11-23 22:35:06,654 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 76 transitions, 292 flow, removed 0 selfloop flow, removed 2 redundant places.
[2024-11-23 22:35:06,656 INFO L231 Difference]: Finished difference. Result has 57 places, 53 transitions, 148 flow
[2024-11-23 22:35:06,656 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=148, PETRI_PLACES=57, PETRI_TRANSITIONS=53}
[2024-11-23 22:35:06,657 INFO L279 CegarLoopForPetriNet]: 56 programPoint places, 1 predicate places.
[2024-11-23 22:35:06,658 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 53 transitions, 148 flow
[2024-11-23 22:35:06,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 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)
[2024-11-23 22:35:06,659 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-23 22:35:06,659 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 22:35:06,671 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ea6e40-8421-4fdb-a2da-785cfbb69c10/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2024-11-23 22:35:06,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ea6e40-8421-4fdb-a2da-785cfbb69c10/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:35:06,862 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr1ASSERT_VIOLATIONARRAY_INDEX (and 12 more)] ===
[2024-11-23 22:35:06,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:35:06,863 INFO L85 PathProgramCache]: Analyzing trace with hash -756221349, now seen corresponding path program 1 times
[2024-11-23 22:35:06,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 22:35:06,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1272462019]
[2024-11-23 22:35:06,863 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:35:06,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:35:06,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ea6e40-8421-4fdb-a2da-785cfbb69c10/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 22:35:06,866 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ea6e40-8421-4fdb-a2da-785cfbb69c10/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 22:35:06,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ea6e40-8421-4fdb-a2da-785cfbb69c10/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-11-23 22:35:06,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-23 22:35:06,973 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-23 22:35:06,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-23 22:35:07,020 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace
[2024-11-23 22:35:07,021 INFO L340 BasicCegarLoop]: Counterexample is feasible
[2024-11-23 22:35:07,022 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 15 remaining)
[2024-11-23 22:35:07,024 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK (13 of 15 remaining)
[2024-11-23 22:35:07,025 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX (12 of 15 remaining)
[2024-11-23 22:35:07,025 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONARRAY_INDEX (11 of 15 remaining)
[2024-11-23 22:35:07,025 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 15 remaining)
[2024-11-23 22:35:07,025 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 15 remaining)
[2024-11-23 22:35:07,025 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 15 remaining)
[2024-11-23 22:35:07,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 15 remaining)
[2024-11-23 22:35:07,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 15 remaining)
[2024-11-23 22:35:07,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 15 remaining)
[2024-11-23 22:35:07,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 15 remaining)
[2024-11-23 22:35:07,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK (3 of 15 remaining)
[2024-11-23 22:35:07,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 15 remaining)
[2024-11-23 22:35:07,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 15 remaining)
[2024-11-23 22:35:07,027 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 15 remaining)
[2024-11-23 22:35:07,039 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ea6e40-8421-4fdb-a2da-785cfbb69c10/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2024-11-23 22:35:07,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ea6e40-8421-4fdb-a2da-785cfbb69c10/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:35:07,228 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2024-11-23 22:35:07,266 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances
[2024-11-23 22:35:07,267 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-11-23 22:35:07,276 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 10:35:07 BasicIcfg
[2024-11-23 22:35:07,276 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-23 22:35:07,277 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-23 22:35:07,277 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-11-23 22:35:07,277 INFO L274 PluginConnector]: Witness Printer initialized
[2024-11-23 22:35:07,278 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:35:03" (3/4) ...
[2024-11-23 22:35:07,280 INFO L149 WitnessPrinter]: No result that supports witness generation found
[2024-11-23 22:35:07,281 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-23 22:35:07,283 INFO L158 Benchmark]: Toolchain (without parser) took 5528.30ms. Allocated memory was 117.4MB in the beginning and 268.4MB in the end (delta: 151.0MB). Free memory was 90.0MB in the beginning and 118.8MB in the end (delta: -28.8MB). Peak memory consumption was 126.0MB. Max. memory is 16.1GB.
[2024-11-23 22:35:07,283 INFO L158 Benchmark]: CDTParser took 1.65ms. Allocated memory is still 117.4MB. Free memory is still 84.0MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-23 22:35:07,285 INFO L158 Benchmark]: CACSL2BoogieTranslator took 931.76ms. Allocated memory is still 117.4MB. Free memory was 90.0MB in the beginning and 50.2MB in the end (delta: 39.8MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB.
[2024-11-23 22:35:07,288 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.67ms. Allocated memory is still 117.4MB. Free memory was 50.2MB in the beginning and 47.6MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-23 22:35:07,288 INFO L158 Benchmark]: Boogie Preprocessor took 83.96ms. Allocated memory is still 117.4MB. Free memory was 47.6MB in the beginning and 45.3MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-23 22:35:07,289 INFO L158 Benchmark]: RCFGBuilder took 1011.94ms. Allocated memory is still 117.4MB. Free memory was 45.1MB in the beginning and 55.2MB in the end (delta: -10.1MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB.
[2024-11-23 22:35:07,289 INFO L158 Benchmark]: TraceAbstraction took 3413.51ms. Allocated memory was 117.4MB in the beginning and 268.4MB in the end (delta: 151.0MB). Free memory was 54.7MB in the beginning and 119.4MB in the end (delta: -64.7MB). Peak memory consumption was 88.0MB. Max. memory is 16.1GB.
[2024-11-23 22:35:07,289 INFO L158 Benchmark]: Witness Printer took 4.91ms. Allocated memory is still 268.4MB. Free memory was 119.4MB in the beginning and 118.8MB in the end (delta: 656.0kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-23 22:35:07,291 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 1.65ms. Allocated memory is still 117.4MB. Free memory is still 84.0MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 931.76ms. Allocated memory is still 117.4MB. Free memory was 90.0MB in the beginning and 50.2MB in the end (delta: 39.8MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 75.67ms. Allocated memory is still 117.4MB. Free memory was 50.2MB in the beginning and 47.6MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 83.96ms. Allocated memory is still 117.4MB. Free memory was 47.6MB in the beginning and 45.3MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 1011.94ms. Allocated memory is still 117.4MB. Free memory was 45.1MB in the beginning and 55.2MB in the end (delta: -10.1MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB.
* TraceAbstraction took 3413.51ms. Allocated memory was 117.4MB in the beginning and 268.4MB in the end (delta: 151.0MB). Free memory was 54.7MB in the beginning and 119.4MB in the end (delta: -64.7MB). Peak memory consumption was 88.0MB. Max. memory is 16.1GB.
* Witness Printer took 4.91ms. Allocated memory is still 268.4MB. Free memory was 119.4MB in the beginning and 118.8MB in the end (delta: 656.0kB). There was no memory consumed. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: overapproximation of sscanf at line 1254, overapproximation of sscanf at line 1253.
Possible FailurePath:
[L1238] static int iSet = 2;
[L1239] static int iCheck = 2;
[L1240] static int a = 0;
[L1241] static int b = 0;
[L1247] int i, err;
VAL [\old(argc)=3, \old(argv)={0:0}, a=0, argc=3, b=0, iCheck=2, iSet=2]
[L1248] COND TRUE argc != 1
VAL [\old(argc)=3, \old(argv)={0:0}, a=0, argc=3, b=0, iCheck=2, iSet=2]
[L1249] COND FALSE !(argc != 3)
VAL [\old(argc)=3, \old(argv)={0:0}, a=0, argc=3, b=0, iCheck=2, iSet=2]
[L1253] argv[1]
[L1254] argv[2]
[L1257] pthread_t setPool[iSet];
[L1258] pthread_t checkPool[iCheck];
[L1259] i = 0
VAL [\old(argc)=3, \old(argv)={0:0}, a=0, argc=3, b=0, checkPool={3:0}, i=0, iCheck=0, iSet=1073741824, setPool={7:0}]
[L1259] COND TRUE i < iSet
- UnprovableResult [Line: 20]: Unable to prove that all allocated memory was freed
Unable to prove that all allocated memory was freed
Reason: Not analyzed.
- UnprovableResult [Line: 1253]: Unable to prove that array index is always in bounds
Unable to prove that array index is always in bounds
Reason: Not analyzed.
- UnprovableResult [Line: 1254]: Unable to prove that array index is always in bounds
Unable to prove that array index is always in bounds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: 1246]: Unable to prove that all allocated memory was freed
Unable to prove that all allocated memory was freed
Reason: Not analyzed.
- UnprovableResult [Line: 1260]: Unable to prove that petrification did provide enough thread instances (tool internal message)
Unable to prove that petrification did provide enough thread instances (tool internal message)
Reason: Not analyzed.
- UnprovableResult [Line: 1266]: Unable to prove that petrification did provide enough thread instances (tool internal message)
Unable to prove that petrification did provide enough thread instances (tool internal message)
Reason: Not analyzed.
- StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances
CFG has 5 procedures, 67 locations, 15 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.2s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 114 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 72 mSDsluCounter, 31 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 198 IncrementalHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 21 mSDtfsCounter, 198 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=148occurred in iteration=3, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 11 ConstructedInterpolants, 4 QuantifiedInterpolants, 87 SizeOfPredicates, 4 NumberOfNonLiveVariables, 103 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available
RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces
[2024-11-23 22:35:07,320 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ea6e40-8421-4fdb-a2da-785cfbb69c10/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Writing output log to file Ultimate.log
Result:
UNKNOWN: Overapproximated counterexample