./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_12-ptr_racefree.i --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for memory safety (deref-memtrack)
Using default analysis
Version d790fecc
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c1cddde-7007-4a9f-91f7-7e399682b551/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c1cddde-7007-4a9f-91f7-7e399682b551/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c1cddde-7007-4a9f-91f7-7e399682b551/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c1cddde-7007-4a9f-91f7-7e399682b551/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_12-ptr_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c1cddde-7007-4a9f-91f7-7e399682b551/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c1cddde-7007-4a9f-91f7-7e399682b551/bin/uautomizer-verify-84ZbGMXZE1 --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 7cd6aaa75855c8ee03a174376352b142cf57dd56532b968b1b6c916585172927
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-d790fec
[2024-12-02 06:06:25,215 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-12-02 06:06:25,273 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c1cddde-7007-4a9f-91f7-7e399682b551/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf
[2024-12-02 06:06:25,277 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-12-02 06:06:25,277 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-12-02 06:06:25,299 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-12-02 06:06:25,300 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-12-02 06:06:25,300 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-12-02 06:06:25,300 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-12-02 06:06:25,300 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-12-02 06:06:25,300 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-12-02 06:06:25,300 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-12-02 06:06:25,301 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-12-02 06:06:25,301 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-12-02 06:06:25,301 INFO L153 SettingsManager]: * Use SBE=true
[2024-12-02 06:06:25,301 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-12-02 06:06:25,301 INFO L153 SettingsManager]: * sizeof long=4
[2024-12-02 06:06:25,301 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-12-02 06:06:25,301 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-12-02 06:06:25,302 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-12-02 06:06:25,302 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true
[2024-12-02 06:06:25,302 INFO L153 SettingsManager]: * Bitprecise bitfields=true
[2024-12-02 06:06:25,302 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true
[2024-12-02 06:06:25,302 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-12-02 06:06:25,302 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2024-12-02 06:06:25,302 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-12-02 06:06:25,302 INFO L153 SettingsManager]: * sizeof long double=12
[2024-12-02 06:06:25,302 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-12-02 06:06:25,302 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-12-02 06:06:25,303 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-12-02 06:06:25,303 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 06:06:25,303 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 06:06:25,303 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 06:06:25,303 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 06:06:25,303 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-12-02 06:06:25,303 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 06:06:25,303 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 06:06:25,303 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 06:06:25,304 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 06:06:25,304 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-12-02 06:06:25,304 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-12-02 06:06:25,304 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-12-02 06:06:25,304 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-12-02 06:06:25,304 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-12-02 06:06:25,304 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-12-02 06:06:25,304 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-12-02 06:06:25,304 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-12-02 06:06:25,305 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_3c1cddde-7007-4a9f-91f7-7e399682b551/bin/uautomizer-verify-84ZbGMXZE1
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 -> 7cd6aaa75855c8ee03a174376352b142cf57dd56532b968b1b6c916585172927
[2024-12-02 06:06:25,522 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-12-02 06:06:25,530 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-12-02 06:06:25,532 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-12-02 06:06:25,533 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-12-02 06:06:25,533 INFO L274 PluginConnector]: CDTParser initialized
[2024-12-02 06:06:25,534 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c1cddde-7007-4a9f-91f7-7e399682b551/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/goblint-regression/28-race_reach_12-ptr_racefree.i
[2024-12-02 06:06:28,318 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c1cddde-7007-4a9f-91f7-7e399682b551/bin/uautomizer-verify-84ZbGMXZE1/data/397ddcace/6641da984c1a4f148bdc60591f7fa410/FLAG79ae43f47
[2024-12-02 06:06:28,594 INFO L384 CDTParser]: Found 1 translation units.
[2024-12-02 06:06:28,594 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c1cddde-7007-4a9f-91f7-7e399682b551/sv-benchmarks/c/goblint-regression/28-race_reach_12-ptr_racefree.i
[2024-12-02 06:06:28,608 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c1cddde-7007-4a9f-91f7-7e399682b551/bin/uautomizer-verify-84ZbGMXZE1/data/397ddcace/6641da984c1a4f148bdc60591f7fa410/FLAG79ae43f47
[2024-12-02 06:06:28,887 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c1cddde-7007-4a9f-91f7-7e399682b551/bin/uautomizer-verify-84ZbGMXZE1/data/397ddcace/6641da984c1a4f148bdc60591f7fa410
[2024-12-02 06:06:28,890 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-12-02 06:06:28,892 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-12-02 06:06:28,893 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-12-02 06:06:28,893 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-12-02 06:06:28,898 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-12-02 06:06:28,899 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:06:28" (1/1) ...
[2024-12-02 06:06:28,899 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ac404b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:06:28, skipping insertion in model container
[2024-12-02 06:06:28,900 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:06:28" (1/1) ...
[2024-12-02 06:06:28,932 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-12-02 06:06:29,168 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 06:06:29,185 INFO L200 MainTranslator]: Completed pre-run
[2024-12-02 06:06:29,228 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 06:06:29,261 INFO L204 MainTranslator]: Completed translation
[2024-12-02 06:06:29,262 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:06:29 WrapperNode
[2024-12-02 06:06:29,262 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-12-02 06:06:29,263 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-12-02 06:06:29,263 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-12-02 06:06:29,263 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-12-02 06:06:29,268 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:06:29" (1/1) ...
[2024-12-02 06:06:29,279 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:06:29" (1/1) ...
[2024-12-02 06:06:29,299 INFO L138 Inliner]: procedures = 171, calls = 43, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 134
[2024-12-02 06:06:29,299 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-12-02 06:06:29,300 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-12-02 06:06:29,300 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-12-02 06:06:29,300 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-12-02 06:06:29,307 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:06:29" (1/1) ...
[2024-12-02 06:06:29,307 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:06:29" (1/1) ...
[2024-12-02 06:06:29,310 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:06:29" (1/1) ...
[2024-12-02 06:06:29,325 INFO L175 MemorySlicer]: Split 20 memory accesses to 5 slices as follows [2, 5, 2, 5, 6]. 30 percent of accesses are in the largest equivalence class. The 13 initializations are split as follows [2, 5, 0, 5, 1]. The 3 writes are split as follows [0, 0, 1, 0, 2].
[2024-12-02 06:06:29,326 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:06:29" (1/1) ...
[2024-12-02 06:06:29,326 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:06:29" (1/1) ...
[2024-12-02 06:06:29,335 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:06:29" (1/1) ...
[2024-12-02 06:06:29,336 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:06:29" (1/1) ...
[2024-12-02 06:06:29,339 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:06:29" (1/1) ...
[2024-12-02 06:06:29,341 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:06:29" (1/1) ...
[2024-12-02 06:06:29,342 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:06:29" (1/1) ...
[2024-12-02 06:06:29,345 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-12-02 06:06:29,346 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-12-02 06:06:29,346 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-12-02 06:06:29,346 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-12-02 06:06:29,347 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:06:29" (1/1) ...
[2024-12-02 06:06:29,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 06:06:29,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c1cddde-7007-4a9f-91f7-7e399682b551/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 06:06:29,374 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c1cddde-7007-4a9f-91f7-7e399682b551/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-12-02 06:06:29,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c1cddde-7007-4a9f-91f7-7e399682b551/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-12-02 06:06:29,396 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0
[2024-12-02 06:06:29,396 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1
[2024-12-02 06:06:29,396 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2
[2024-12-02 06:06:29,396 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3
[2024-12-02 06:06:29,396 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4
[2024-12-02 06:06:29,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0
[2024-12-02 06:06:29,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1
[2024-12-02 06:06:29,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2
[2024-12-02 06:06:29,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3
[2024-12-02 06:06:29,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4
[2024-12-02 06:06:29,397 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock
[2024-12-02 06:06:29,397 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-12-02 06:06:29,397 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2024-12-02 06:06:29,397 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun
[2024-12-02 06:06:29,397 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun
[2024-12-02 06:06:29,397 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-12-02 06:06:29,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-12-02 06:06:29,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1
[2024-12-02 06:06:29,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2
[2024-12-02 06:06:29,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3
[2024-12-02 06:06:29,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4
[2024-12-02 06:06:29,398 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock
[2024-12-02 06:06:29,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-12-02 06:06:29,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-12-02 06:06:29,399 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement.
[2024-12-02 06:06:29,525 INFO L234 CfgBuilder]: Building ICFG
[2024-12-02 06:06:29,526 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-12-02 06:06:29,786 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program.
[2024-12-02 06:06:29,786 INFO L283 CfgBuilder]: Performing block encoding
[2024-12-02 06:06:30,179 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-12-02 06:06:30,179 INFO L312 CfgBuilder]: Removed 6 assume(true) statements.
[2024-12-02 06:06:30,179 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:06:30 BoogieIcfgContainer
[2024-12-02 06:06:30,179 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-12-02 06:06:30,181 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-12-02 06:06:30,181 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-12-02 06:06:30,186 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-12-02 06:06:30,186 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:06:28" (1/3) ...
[2024-12-02 06:06:30,186 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ef1290b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:06:30, skipping insertion in model container
[2024-12-02 06:06:30,186 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:06:29" (2/3) ...
[2024-12-02 06:06:30,187 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ef1290b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:06:30, skipping insertion in model container
[2024-12-02 06:06:30,187 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:06:30" (3/3) ...
[2024-12-02 06:06:30,188 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_12-ptr_racefree.i
[2024-12-02 06:06:30,203 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-12-02 06:06:30,204 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_12-ptr_racefree.i that has 2 procedures, 64 locations, 1 initial locations, 6 loop locations, and 16 error locations.
[2024-12-02 06:06:30,205 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2024-12-02 06:06:30,252 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions.
[2024-12-02 06:06:30,283 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 67 places, 75 transitions, 157 flow
[2024-12-02 06:06:30,328 INFO L124 PetriNetUnfolderBase]: 15/109 cut-off events.
[2024-12-02 06:06:30,330 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES.
[2024-12-02 06:06:30,334 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114 conditions, 109 events. 15/109 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 458 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 70. Up to 4 conditions per place.
[2024-12-02 06:06:30,334 INFO L82 GeneralOperation]: Start removeDead. Operand has 67 places, 75 transitions, 157 flow
[2024-12-02 06:06:30,337 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 75 transitions, 157 flow
[2024-12-02 06:06:30,344 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-12-02 06:06:30,355 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;@7a188d2d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-12-02 06:06:30,355 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations.
[2024-12-02 06:06:30,363 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2024-12-02 06:06:30,363 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events.
[2024-12-02 06:06:30,363 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-12-02 06:06:30,364 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 06:06:30,364 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1]
[2024-12-02 06:06:30,364 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] ===
[2024-12-02 06:06:30,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:06:30,369 INFO L85 PathProgramCache]: Analyzing trace with hash 481539, now seen corresponding path program 1 times
[2024-12-02 06:06:30,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 06:06:30,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106687928]
[2024-12-02 06:06:30,377 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:06:30,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 06:06:30,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:06:30,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 06:06:30,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 06:06:30,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106687928]
[2024-12-02 06:06:30,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106687928] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 06:06:30,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 06:06:30,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2024-12-02 06:06:30,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657812924]
[2024-12-02 06:06:30,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 06:06:30,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 06:06:30,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 06:06:30,696 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 06:06:30,696 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 06:06:30,733 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 75
[2024-12-02 06:06:30,735 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 75 transitions, 157 flow. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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)
[2024-12-02 06:06:30,735 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-02 06:06:30,735 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 75
[2024-12-02 06:06:30,736 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-02 06:06:30,942 INFO L124 PetriNetUnfolderBase]: 181/665 cut-off events.
[2024-12-02 06:06:30,943 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES.
[2024-12-02 06:06:30,945 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1076 conditions, 665 events. 181/665 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 3853 event pairs, 156 based on Foata normal form. 105/703 useless extension candidates. Maximal degree in co-relation 1020. Up to 353 conditions per place.
[2024-12-02 06:06:30,949 INFO L140 encePairwiseOnDemand]: 61/75 looper letters, 41 selfloop transitions, 2 changer transitions 0/74 dead transitions.
[2024-12-02 06:06:30,949 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 74 transitions, 241 flow
[2024-12-02 06:06:30,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 06:06:30,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-12-02 06:06:30,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 154 transitions.
[2024-12-02 06:06:30,961 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6844444444444444
[2024-12-02 06:06:30,962 INFO L175 Difference]: Start difference. First operand has 67 places, 75 transitions, 157 flow. Second operand 3 states and 154 transitions.
[2024-12-02 06:06:30,962 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 74 transitions, 241 flow
[2024-12-02 06:06:30,966 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 74 transitions, 241 flow, removed 0 selfloop flow, removed 0 redundant places.
[2024-12-02 06:06:30,969 INFO L231 Difference]: Finished difference. Result has 66 places, 62 transitions, 135 flow
[2024-12-02 06:06:30,971 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=131, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=135, PETRI_PLACES=66, PETRI_TRANSITIONS=62}
[2024-12-02 06:06:30,973 INFO L279 CegarLoopForPetriNet]: 67 programPoint places, -1 predicate places.
[2024-12-02 06:06:30,973 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 62 transitions, 135 flow
[2024-12-02 06:06:30,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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)
[2024-12-02 06:06:30,974 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 06:06:30,974 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1]
[2024-12-02 06:06:30,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-12-02 06:06:30,974 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] ===
[2024-12-02 06:06:30,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:06:30,975 INFO L85 PathProgramCache]: Analyzing trace with hash 481540, now seen corresponding path program 1 times
[2024-12-02 06:06:30,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 06:06:30,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144994751]
[2024-12-02 06:06:30,975 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:06:30,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 06:06:31,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:06:31,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 06:06:31,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 06:06:31,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144994751]
[2024-12-02 06:06:31,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144994751] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 06:06:31,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 06:06:31,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2024-12-02 06:06:31,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977500755]
[2024-12-02 06:06:31,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 06:06:31,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 06:06:31,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 06:06:31,165 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 06:06:31,165 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 06:06:31,191 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 75
[2024-12-02 06:06:31,191 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 62 transitions, 135 flow. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 06:06:31,192 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-02 06:06:31,192 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 75
[2024-12-02 06:06:31,192 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-02 06:06:31,339 INFO L124 PetriNetUnfolderBase]: 168/586 cut-off events.
[2024-12-02 06:06:31,340 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES.
[2024-12-02 06:06:31,341 INFO L83 FinitePrefix]: Finished finitePrefix Result has 977 conditions, 586 events. 168/586 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 3411 event pairs, 0 based on Foata normal form. 1/535 useless extension candidates. Maximal degree in co-relation 936. Up to 355 conditions per place.
[2024-12-02 06:06:31,345 INFO L140 encePairwiseOnDemand]: 71/75 looper letters, 41 selfloop transitions, 2 changer transitions 0/75 dead transitions.
[2024-12-02 06:06:31,345 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 75 transitions, 247 flow
[2024-12-02 06:06:31,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 06:06:31,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-12-02 06:06:31,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 147 transitions.
[2024-12-02 06:06:31,346 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6533333333333333
[2024-12-02 06:06:31,347 INFO L175 Difference]: Start difference. First operand has 66 places, 62 transitions, 135 flow. Second operand 3 states and 147 transitions.
[2024-12-02 06:06:31,347 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 75 transitions, 247 flow
[2024-12-02 06:06:31,348 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 75 transitions, 243 flow, removed 0 selfloop flow, removed 2 redundant places.
[2024-12-02 06:06:31,350 INFO L231 Difference]: Finished difference. Result has 67 places, 62 transitions, 141 flow
[2024-12-02 06:06:31,350 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=131, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=141, PETRI_PLACES=67, PETRI_TRANSITIONS=62}
[2024-12-02 06:06:31,351 INFO L279 CegarLoopForPetriNet]: 67 programPoint places, 0 predicate places.
[2024-12-02 06:06:31,351 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 62 transitions, 141 flow
[2024-12-02 06:06:31,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 06:06:31,352 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 06:06:31,352 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1]
[2024-12-02 06:06:31,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-12-02 06:06:31,352 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] ===
[2024-12-02 06:06:31,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:06:31,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1950145640, now seen corresponding path program 1 times
[2024-12-02 06:06:31,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 06:06:31,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265290952]
[2024-12-02 06:06:31,353 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:06:31,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 06:06:31,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:06:31,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 06:06:31,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 06:06:31,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265290952]
[2024-12-02 06:06:31,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265290952] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 06:06:31,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 06:06:31,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 06:06:31,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617655408]
[2024-12-02 06:06:31,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 06:06:31,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 06:06:31,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 06:06:31,583 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 06:06:31,583 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-12-02 06:06:31,669 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 75
[2024-12-02 06:06:31,670 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 62 transitions, 141 flow. Second operand has 5 states, 5 states have (on average 34.4) internal successors, (172), 5 states have internal predecessors, (172), 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)
[2024-12-02 06:06:31,670 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-02 06:06:31,670 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 75
[2024-12-02 06:06:31,670 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-02 06:06:31,762 INFO L124 PetriNetUnfolderBase]: 36/121 cut-off events.
[2024-12-02 06:06:31,762 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES.
[2024-12-02 06:06:31,763 INFO L83 FinitePrefix]: Finished finitePrefix Result has 246 conditions, 121 events. 36/121 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 341 event pairs, 0 based on Foata normal form. 26/139 useless extension candidates. Maximal degree in co-relation 217. Up to 75 conditions per place.
[2024-12-02 06:06:31,763 INFO L140 encePairwiseOnDemand]: 71/75 looper letters, 29 selfloop transitions, 2 changer transitions 0/49 dead transitions.
[2024-12-02 06:06:31,764 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 49 transitions, 170 flow
[2024-12-02 06:06:31,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-12-02 06:06:31,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-12-02 06:06:31,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 165 transitions.
[2024-12-02 06:06:31,766 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.55
[2024-12-02 06:06:31,766 INFO L175 Difference]: Start difference. First operand has 67 places, 62 transitions, 141 flow. Second operand 4 states and 165 transitions.
[2024-12-02 06:06:31,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 49 transitions, 170 flow
[2024-12-02 06:06:31,767 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 49 transitions, 164 flow, removed 0 selfloop flow, removed 3 redundant places.
[2024-12-02 06:06:31,768 INFO L231 Difference]: Finished difference. Result has 41 places, 35 transitions, 78 flow
[2024-12-02 06:06:31,768 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=78, PETRI_PLACES=41, PETRI_TRANSITIONS=35}
[2024-12-02 06:06:31,769 INFO L279 CegarLoopForPetriNet]: 67 programPoint places, -26 predicate places.
[2024-12-02 06:06:31,769 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 35 transitions, 78 flow
[2024-12-02 06:06:31,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.4) internal successors, (172), 5 states have internal predecessors, (172), 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)
[2024-12-02 06:06:31,770 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 06:06:31,770 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1]
[2024-12-02 06:06:31,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-12-02 06:06:31,770 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] ===
[2024-12-02 06:06:31,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:06:31,771 INFO L85 PathProgramCache]: Analyzing trace with hash -324972236, now seen corresponding path program 1 times
[2024-12-02 06:06:31,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 06:06:31,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042937520]
[2024-12-02 06:06:31,771 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:06:31,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 06:06:31,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-12-02 06:06:31,812 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-12-02 06:06:31,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-12-02 06:06:31,845 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-12-02 06:06:31,845 INFO L340 BasicCegarLoop]: Counterexample is feasible
[2024-12-02 06:06:31,846 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 25 remaining)
[2024-12-02 06:06:31,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 25 remaining)
[2024-12-02 06:06:31,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 25 remaining)
[2024-12-02 06:06:31,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 25 remaining)
[2024-12-02 06:06:31,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 25 remaining)
[2024-12-02 06:06:31,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 25 remaining)
[2024-12-02 06:06:31,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 25 remaining)
[2024-12-02 06:06:31,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK (17 of 25 remaining)
[2024-12-02 06:06:31,849 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (16 of 25 remaining)
[2024-12-02 06:06:31,849 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 25 remaining)
[2024-12-02 06:06:31,849 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 25 remaining)
[2024-12-02 06:06:31,849 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 25 remaining)
[2024-12-02 06:06:31,849 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 25 remaining)
[2024-12-02 06:06:31,849 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 25 remaining)
[2024-12-02 06:06:31,849 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 25 remaining)
[2024-12-02 06:06:31,849 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 25 remaining)
[2024-12-02 06:06:31,849 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 25 remaining)
[2024-12-02 06:06:31,849 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 25 remaining)
[2024-12-02 06:06:31,850 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 25 remaining)
[2024-12-02 06:06:31,850 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 25 remaining)
[2024-12-02 06:06:31,850 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 25 remaining)
[2024-12-02 06:06:31,850 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 25 remaining)
[2024-12-02 06:06:31,850 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 25 remaining)
[2024-12-02 06:06:31,850 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 25 remaining)
[2024-12-02 06:06:31,850 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 25 remaining)
[2024-12-02 06:06:31,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-12-02 06:06:31,851 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2024-12-02 06:06:31,853 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-12-02 06:06:31,853 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances.
[2024-12-02 06:06:31,887 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions.
[2024-12-02 06:06:31,890 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 99 places, 112 transitions, 240 flow
[2024-12-02 06:06:31,910 INFO L124 PetriNetUnfolderBase]: 27/192 cut-off events.
[2024-12-02 06:06:31,910 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES.
[2024-12-02 06:06:31,911 INFO L83 FinitePrefix]: Finished finitePrefix Result has 204 conditions, 192 events. 27/192 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 940 event pairs, 0 based on Foata normal form. 0/118 useless extension candidates. Maximal degree in co-relation 115. Up to 6 conditions per place.
[2024-12-02 06:06:31,911 INFO L82 GeneralOperation]: Start removeDead. Operand has 99 places, 112 transitions, 240 flow
[2024-12-02 06:06:31,913 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 99 places, 112 transitions, 240 flow
[2024-12-02 06:06:31,914 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-12-02 06:06:31,915 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;@7a188d2d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-12-02 06:06:31,915 INFO L334 AbstractCegarLoop]: Starting to check reachability of 33 error locations.
[2024-12-02 06:06:31,919 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2024-12-02 06:06:31,919 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events.
[2024-12-02 06:06:31,919 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-12-02 06:06:31,919 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 06:06:31,919 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1]
[2024-12-02 06:06:31,919 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 30 more)] ===
[2024-12-02 06:06:31,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:06:31,920 INFO L85 PathProgramCache]: Analyzing trace with hash 592755, now seen corresponding path program 1 times
[2024-12-02 06:06:31,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 06:06:31,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691073591]
[2024-12-02 06:06:31,920 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:06:31,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 06:06:31,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:06:31,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 06:06:31,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 06:06:31,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691073591]
[2024-12-02 06:06:31,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691073591] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 06:06:31,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 06:06:31,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2024-12-02 06:06:31,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858917255]
[2024-12-02 06:06:31,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 06:06:31,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 06:06:31,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 06:06:31,981 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 06:06:31,981 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 06:06:32,011 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 112
[2024-12-02 06:06:32,011 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 112 transitions, 240 flow. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 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)
[2024-12-02 06:06:32,011 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-02 06:06:32,011 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 112
[2024-12-02 06:06:32,011 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-02 06:06:33,168 INFO L124 PetriNetUnfolderBase]: 5103/11295 cut-off events.
[2024-12-02 06:06:33,169 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES.
[2024-12-02 06:06:33,186 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19477 conditions, 11295 events. 5103/11295 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 314. Compared 98156 event pairs, 4416 based on Foata normal form. 2239/12636 useless extension candidates. Maximal degree in co-relation 12477. Up to 7045 conditions per place.
[2024-12-02 06:06:33,220 INFO L140 encePairwiseOnDemand]: 92/112 looper letters, 67 selfloop transitions, 2 changer transitions 0/117 dead transitions.
[2024-12-02 06:06:33,220 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 117 transitions, 388 flow
[2024-12-02 06:06:33,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 06:06:33,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-12-02 06:06:33,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 243 transitions.
[2024-12-02 06:06:33,222 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7232142857142857
[2024-12-02 06:06:33,222 INFO L175 Difference]: Start difference. First operand has 99 places, 112 transitions, 240 flow. Second operand 3 states and 243 transitions.
[2024-12-02 06:06:33,222 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 117 transitions, 388 flow
[2024-12-02 06:06:33,225 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 117 transitions, 388 flow, removed 0 selfloop flow, removed 0 redundant places.
[2024-12-02 06:06:33,226 INFO L231 Difference]: Finished difference. Result has 98 places, 93 transitions, 206 flow
[2024-12-02 06:06:33,227 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=206, PETRI_PLACES=98, PETRI_TRANSITIONS=93}
[2024-12-02 06:06:33,227 INFO L279 CegarLoopForPetriNet]: 99 programPoint places, -1 predicate places.
[2024-12-02 06:06:33,227 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 93 transitions, 206 flow
[2024-12-02 06:06:33,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 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)
[2024-12-02 06:06:33,228 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 06:06:33,228 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1]
[2024-12-02 06:06:33,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-12-02 06:06:33,228 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 30 more)] ===
[2024-12-02 06:06:33,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:06:33,228 INFO L85 PathProgramCache]: Analyzing trace with hash 592756, now seen corresponding path program 1 times
[2024-12-02 06:06:33,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 06:06:33,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299478260]
[2024-12-02 06:06:33,229 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:06:33,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 06:06:33,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:06:33,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 06:06:33,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 06:06:33,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299478260]
[2024-12-02 06:06:33,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299478260] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 06:06:33,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 06:06:33,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2024-12-02 06:06:33,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855368434]
[2024-12-02 06:06:33,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 06:06:33,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 06:06:33,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 06:06:33,310 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 06:06:33,310 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 06:06:33,339 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 112
[2024-12-02 06:06:33,340 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 93 transitions, 206 flow. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 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)
[2024-12-02 06:06:33,340 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-02 06:06:33,340 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 112
[2024-12-02 06:06:33,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-02 06:06:34,218 INFO L124 PetriNetUnfolderBase]: 4766/11141 cut-off events.
[2024-12-02 06:06:34,218 INFO L125 PetriNetUnfolderBase]: For 163/163 co-relation queries the response was YES.
[2024-12-02 06:06:34,231 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18979 conditions, 11141 events. 4766/11141 cut-off events. For 163/163 co-relation queries the response was YES. Maximal size of possible extension queue 339. Compared 101349 event pairs, 2232 based on Foata normal form. 1/10124 useless extension candidates. Maximal degree in co-relation 16425. Up to 7553 conditions per place.
[2024-12-02 06:06:34,264 INFO L140 encePairwiseOnDemand]: 108/112 looper letters, 56 selfloop transitions, 2 changer transitions 0/107 dead transitions.
[2024-12-02 06:06:34,264 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 107 transitions, 350 flow
[2024-12-02 06:06:34,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 06:06:34,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-12-02 06:06:34,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 213 transitions.
[2024-12-02 06:06:34,266 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6339285714285714
[2024-12-02 06:06:34,266 INFO L175 Difference]: Start difference. First operand has 98 places, 93 transitions, 206 flow. Second operand 3 states and 213 transitions.
[2024-12-02 06:06:34,266 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 107 transitions, 350 flow
[2024-12-02 06:06:34,278 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 107 transitions, 346 flow, removed 0 selfloop flow, removed 2 redundant places.
[2024-12-02 06:06:34,279 INFO L231 Difference]: Finished difference. Result has 99 places, 94 transitions, 216 flow
[2024-12-02 06:06:34,279 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=216, PETRI_PLACES=99, PETRI_TRANSITIONS=94}
[2024-12-02 06:06:34,280 INFO L279 CegarLoopForPetriNet]: 99 programPoint places, 0 predicate places.
[2024-12-02 06:06:34,280 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 94 transitions, 216 flow
[2024-12-02 06:06:34,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 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)
[2024-12-02 06:06:34,280 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 06:06:34,280 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1]
[2024-12-02 06:06:34,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-12-02 06:06:34,280 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 30 more)] ===
[2024-12-02 06:06:34,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:06:34,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1980408581, now seen corresponding path program 1 times
[2024-12-02 06:06:34,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 06:06:34,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616231871]
[2024-12-02 06:06:34,281 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:06:34,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 06:06:34,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:06:34,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 06:06:34,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 06:06:34,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616231871]
[2024-12-02 06:06:34,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616231871] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 06:06:34,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 06:06:34,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-12-02 06:06:34,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161849400]
[2024-12-02 06:06:34,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 06:06:34,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 06:06:34,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 06:06:34,406 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 06:06:34,406 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 06:06:34,440 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 112
[2024-12-02 06:06:34,440 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 94 transitions, 216 flow. Second operand has 4 states, 4 states have (on average 52.5) internal successors, (210), 4 states have internal predecessors, (210), 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)
[2024-12-02 06:06:34,440 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-02 06:06:34,440 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 112
[2024-12-02 06:06:34,440 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-02 06:06:35,469 INFO L124 PetriNetUnfolderBase]: 4754/10554 cut-off events.
[2024-12-02 06:06:35,469 INFO L125 PetriNetUnfolderBase]: For 461/461 co-relation queries the response was YES.
[2024-12-02 06:06:35,482 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18718 conditions, 10554 events. 4754/10554 cut-off events. For 461/461 co-relation queries the response was YES. Maximal size of possible extension queue 304. Compared 94362 event pairs, 0 based on Foata normal form. 13/10025 useless extension candidates. Maximal degree in co-relation 1445. Up to 7153 conditions per place.
[2024-12-02 06:06:35,513 INFO L140 encePairwiseOnDemand]: 108/112 looper letters, 80 selfloop transitions, 4 changer transitions 0/133 dead transitions.
[2024-12-02 06:06:35,513 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 133 transitions, 464 flow
[2024-12-02 06:06:35,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-12-02 06:06:35,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-12-02 06:06:35,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 289 transitions.
[2024-12-02 06:06:35,515 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6450892857142857
[2024-12-02 06:06:35,515 INFO L175 Difference]: Start difference. First operand has 99 places, 94 transitions, 216 flow. Second operand 4 states and 289 transitions.
[2024-12-02 06:06:35,515 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 133 transitions, 464 flow
[2024-12-02 06:06:35,517 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 133 transitions, 462 flow, removed 0 selfloop flow, removed 1 redundant places.
[2024-12-02 06:06:35,518 INFO L231 Difference]: Finished difference. Result has 102 places, 95 transitions, 233 flow
[2024-12-02 06:06:35,518 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=233, PETRI_PLACES=102, PETRI_TRANSITIONS=95}
[2024-12-02 06:06:35,519 INFO L279 CegarLoopForPetriNet]: 99 programPoint places, 3 predicate places.
[2024-12-02 06:06:35,519 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 95 transitions, 233 flow
[2024-12-02 06:06:35,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.5) internal successors, (210), 4 states have internal predecessors, (210), 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)
[2024-12-02 06:06:35,519 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 06:06:35,519 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1]
[2024-12-02 06:06:35,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-12-02 06:06:35,520 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 30 more)] ===
[2024-12-02 06:06:35,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:06:35,520 INFO L85 PathProgramCache]: Analyzing trace with hash 1533312629, now seen corresponding path program 1 times
[2024-12-02 06:06:35,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 06:06:35,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010953475]
[2024-12-02 06:06:35,520 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:06:35,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 06:06:35,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:06:35,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 06:06:35,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 06:06:35,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010953475]
[2024-12-02 06:06:35,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010953475] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 06:06:35,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 06:06:35,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 06:06:35,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707303641]
[2024-12-02 06:06:35,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 06:06:35,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-12-02 06:06:35,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 06:06:35,697 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-12-02 06:06:35,697 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-12-02 06:06:35,781 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 112
[2024-12-02 06:06:35,782 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 95 transitions, 233 flow. Second operand has 6 states, 6 states have (on average 51.833333333333336) internal successors, (311), 6 states have internal predecessors, (311), 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)
[2024-12-02 06:06:35,782 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-02 06:06:35,782 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 112
[2024-12-02 06:06:35,782 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-02 06:06:36,554 INFO L124 PetriNetUnfolderBase]: 4766/10615 cut-off events.
[2024-12-02 06:06:36,554 INFO L125 PetriNetUnfolderBase]: For 965/965 co-relation queries the response was YES.
[2024-12-02 06:06:36,566 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19171 conditions, 10615 events. 4766/10615 cut-off events. For 965/965 co-relation queries the response was YES. Maximal size of possible extension queue 305. Compared 93212 event pairs, 1340 based on Foata normal form. 169/10090 useless extension candidates. Maximal degree in co-relation 1391. Up to 5710 conditions per place.
[2024-12-02 06:06:36,591 INFO L140 encePairwiseOnDemand]: 107/112 looper letters, 128 selfloop transitions, 6 changer transitions 0/182 dead transitions.
[2024-12-02 06:06:36,591 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 182 transitions, 671 flow
[2024-12-02 06:06:36,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-12-02 06:06:36,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2024-12-02 06:06:36,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 435 transitions.
[2024-12-02 06:06:36,593 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6473214285714286
[2024-12-02 06:06:36,593 INFO L175 Difference]: Start difference. First operand has 102 places, 95 transitions, 233 flow. Second operand 6 states and 435 transitions.
[2024-12-02 06:06:36,593 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 182 transitions, 671 flow
[2024-12-02 06:06:36,595 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 182 transitions, 662 flow, removed 2 selfloop flow, removed 2 redundant places.
[2024-12-02 06:06:36,596 INFO L231 Difference]: Finished difference. Result has 105 places, 95 transitions, 237 flow
[2024-12-02 06:06:36,597 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=237, PETRI_PLACES=105, PETRI_TRANSITIONS=95}
[2024-12-02 06:06:36,597 INFO L279 CegarLoopForPetriNet]: 99 programPoint places, 6 predicate places.
[2024-12-02 06:06:36,597 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 95 transitions, 237 flow
[2024-12-02 06:06:36,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 51.833333333333336) internal successors, (311), 6 states have internal predecessors, (311), 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)
[2024-12-02 06:06:36,598 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 06:06:36,598 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 06:06:36,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-12-02 06:06:36,598 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 30 more)] ===
[2024-12-02 06:06:36,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:06:36,598 INFO L85 PathProgramCache]: Analyzing trace with hash -1503937645, now seen corresponding path program 1 times
[2024-12-02 06:06:36,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 06:06:36,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398136678]
[2024-12-02 06:06:36,599 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:06:36,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 06:06:36,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:06:36,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 06:06:36,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 06:06:36,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398136678]
[2024-12-02 06:06:36,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398136678] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 06:06:36,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 06:06:36,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 06:06:36,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524076240]
[2024-12-02 06:06:36,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 06:06:36,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 06:06:36,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 06:06:36,747 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 06:06:36,747 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-12-02 06:06:36,815 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 112
[2024-12-02 06:06:36,816 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 95 transitions, 237 flow. Second operand has 5 states, 5 states have (on average 46.6) internal successors, (233), 5 states have internal predecessors, (233), 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)
[2024-12-02 06:06:36,816 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-02 06:06:36,816 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 112
[2024-12-02 06:06:36,816 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-02 06:06:37,668 INFO L124 PetriNetUnfolderBase]: 5568/12105 cut-off events.
[2024-12-02 06:06:37,668 INFO L125 PetriNetUnfolderBase]: For 2379/2379 co-relation queries the response was YES.
[2024-12-02 06:06:37,687 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22545 conditions, 12105 events. 5568/12105 cut-off events. For 2379/2379 co-relation queries the response was YES. Maximal size of possible extension queue 329. Compared 104483 event pairs, 3105 based on Foata normal form. 0/11539 useless extension candidates. Maximal degree in co-relation 21208. Up to 6679 conditions per place.
[2024-12-02 06:06:37,711 INFO L140 encePairwiseOnDemand]: 100/112 looper letters, 121 selfloop transitions, 8 changer transitions 0/171 dead transitions.
[2024-12-02 06:06:37,711 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 171 transitions, 682 flow
[2024-12-02 06:06:37,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-12-02 06:06:37,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2024-12-02 06:06:37,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 357 transitions.
[2024-12-02 06:06:37,712 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6375
[2024-12-02 06:06:37,712 INFO L175 Difference]: Start difference. First operand has 105 places, 95 transitions, 237 flow. Second operand 5 states and 357 transitions.
[2024-12-02 06:06:37,712 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 171 transitions, 682 flow
[2024-12-02 06:06:37,714 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 171 transitions, 651 flow, removed 4 selfloop flow, removed 5 redundant places.
[2024-12-02 06:06:37,716 INFO L231 Difference]: Finished difference. Result has 107 places, 100 transitions, 286 flow
[2024-12-02 06:06:37,716 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=286, PETRI_PLACES=107, PETRI_TRANSITIONS=100}
[2024-12-02 06:06:37,716 INFO L279 CegarLoopForPetriNet]: 99 programPoint places, 8 predicate places.
[2024-12-02 06:06:37,717 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 100 transitions, 286 flow
[2024-12-02 06:06:37,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 46.6) internal successors, (233), 5 states have internal predecessors, (233), 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)
[2024-12-02 06:06:37,717 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 06:06:37,717 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 06:06:37,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-12-02 06:06:37,717 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 30 more)] ===
[2024-12-02 06:06:37,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:06:37,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1503937644, now seen corresponding path program 1 times
[2024-12-02 06:06:37,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 06:06:37,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832799425]
[2024-12-02 06:06:37,718 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:06:37,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 06:06:37,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:06:37,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 06:06:37,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 06:06:37,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832799425]
[2024-12-02 06:06:37,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832799425] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 06:06:37,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 06:06:37,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 06:06:37,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556310544]
[2024-12-02 06:06:37,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 06:06:37,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 06:06:37,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 06:06:37,860 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 06:06:37,860 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-12-02 06:06:37,917 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 112
[2024-12-02 06:06:37,917 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 100 transitions, 286 flow. Second operand has 5 states, 5 states have (on average 48.6) internal successors, (243), 5 states have internal predecessors, (243), 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)
[2024-12-02 06:06:37,917 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-02 06:06:37,917 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 112
[2024-12-02 06:06:37,918 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-02 06:06:38,823 INFO L124 PetriNetUnfolderBase]: 4756/9848 cut-off events.
[2024-12-02 06:06:38,823 INFO L125 PetriNetUnfolderBase]: For 2356/2356 co-relation queries the response was YES.
[2024-12-02 06:06:38,842 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20099 conditions, 9848 events. 4756/9848 cut-off events. For 2356/2356 co-relation queries the response was YES. Maximal size of possible extension queue 264. Compared 80094 event pairs, 258 based on Foata normal form. 872/10423 useless extension candidates. Maximal degree in co-relation 18861. Up to 5693 conditions per place.
[2024-12-02 06:06:38,865 INFO L140 encePairwiseOnDemand]: 104/112 looper letters, 111 selfloop transitions, 5 changer transitions 0/159 dead transitions.
[2024-12-02 06:06:38,865 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 159 transitions, 663 flow
[2024-12-02 06:06:38,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-12-02 06:06:38,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2024-12-02 06:06:38,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 399 transitions.
[2024-12-02 06:06:38,867 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.59375
[2024-12-02 06:06:38,867 INFO L175 Difference]: Start difference. First operand has 107 places, 100 transitions, 286 flow. Second operand 6 states and 399 transitions.
[2024-12-02 06:06:38,867 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 159 transitions, 663 flow
[2024-12-02 06:06:38,877 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 159 transitions, 663 flow, removed 0 selfloop flow, removed 0 redundant places.
[2024-12-02 06:06:38,878 INFO L231 Difference]: Finished difference. Result has 107 places, 95 transitions, 286 flow
[2024-12-02 06:06:38,879 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=276, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=286, PETRI_PLACES=107, PETRI_TRANSITIONS=95}
[2024-12-02 06:06:38,879 INFO L279 CegarLoopForPetriNet]: 99 programPoint places, 8 predicate places.
[2024-12-02 06:06:38,879 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 95 transitions, 286 flow
[2024-12-02 06:06:38,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 48.6) internal successors, (243), 5 states have internal predecessors, (243), 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)
[2024-12-02 06:06:38,880 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 06:06:38,880 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 1, 1, 1, 1]
[2024-12-02 06:06:38,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2024-12-02 06:06:38,880 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 30 more)] ===
[2024-12-02 06:06:38,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:06:38,880 INFO L85 PathProgramCache]: Analyzing trace with hash 288051850, now seen corresponding path program 1 times
[2024-12-02 06:06:38,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 06:06:38,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394867509]
[2024-12-02 06:06:38,881 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:06:38,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 06:06:38,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-12-02 06:06:38,917 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-12-02 06:06:38,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-12-02 06:06:38,938 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-12-02 06:06:38,938 INFO L340 BasicCegarLoop]: Counterexample is feasible
[2024-12-02 06:06:38,938 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 33 remaining)
[2024-12-02 06:06:38,938 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (31 of 33 remaining)
[2024-12-02 06:06:38,938 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 33 remaining)
[2024-12-02 06:06:38,938 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (29 of 33 remaining)
[2024-12-02 06:06:38,939 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 33 remaining)
[2024-12-02 06:06:38,939 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 33 remaining)
[2024-12-02 06:06:38,939 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 33 remaining)
[2024-12-02 06:06:38,939 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK (25 of 33 remaining)
[2024-12-02 06:06:38,939 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (24 of 33 remaining)
[2024-12-02 06:06:38,939 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 33 remaining)
[2024-12-02 06:06:38,939 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 33 remaining)
[2024-12-02 06:06:38,939 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 33 remaining)
[2024-12-02 06:06:38,939 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 33 remaining)
[2024-12-02 06:06:38,939 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 33 remaining)
[2024-12-02 06:06:38,939 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 33 remaining)
[2024-12-02 06:06:38,939 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 33 remaining)
[2024-12-02 06:06:38,939 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 33 remaining)
[2024-12-02 06:06:38,939 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 33 remaining)
[2024-12-02 06:06:38,939 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 33 remaining)
[2024-12-02 06:06:38,939 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 33 remaining)
[2024-12-02 06:06:38,939 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 33 remaining)
[2024-12-02 06:06:38,939 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 33 remaining)
[2024-12-02 06:06:38,940 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 33 remaining)
[2024-12-02 06:06:38,940 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 33 remaining)
[2024-12-02 06:06:38,940 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 33 remaining)
[2024-12-02 06:06:38,940 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 33 remaining)
[2024-12-02 06:06:38,940 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 33 remaining)
[2024-12-02 06:06:38,940 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 33 remaining)
[2024-12-02 06:06:38,940 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 33 remaining)
[2024-12-02 06:06:38,940 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 33 remaining)
[2024-12-02 06:06:38,940 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 33 remaining)
[2024-12-02 06:06:38,940 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 33 remaining)
[2024-12-02 06:06:38,940 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 33 remaining)
[2024-12-02 06:06:38,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2024-12-02 06:06:38,941 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1]
[2024-12-02 06:06:38,941 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-12-02 06:06:38,941 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances.
[2024-12-02 06:06:38,971 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions.
[2024-12-02 06:06:38,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 131 places, 149 transitions, 325 flow
[2024-12-02 06:06:39,003 INFO L124 PetriNetUnfolderBase]: 42/296 cut-off events.
[2024-12-02 06:06:39,003 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES.
[2024-12-02 06:06:39,006 INFO L83 FinitePrefix]: Finished finitePrefix Result has 321 conditions, 296 events. 42/296 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1545 event pairs, 1 based on Foata normal form. 0/182 useless extension candidates. Maximal degree in co-relation 203. Up to 12 conditions per place.
[2024-12-02 06:06:39,006 INFO L82 GeneralOperation]: Start removeDead. Operand has 131 places, 149 transitions, 325 flow
[2024-12-02 06:06:39,009 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 131 places, 149 transitions, 325 flow
[2024-12-02 06:06:39,010 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-12-02 06:06:39,011 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;@7a188d2d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-12-02 06:06:39,011 INFO L334 AbstractCegarLoop]: Starting to check reachability of 41 error locations.
[2024-12-02 06:06:39,013 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2024-12-02 06:06:39,013 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events.
[2024-12-02 06:06:39,013 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-12-02 06:06:39,013 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 06:06:39,013 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1]
[2024-12-02 06:06:39,013 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 38 more)] ===
[2024-12-02 06:06:39,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:06:39,014 INFO L85 PathProgramCache]: Analyzing trace with hash 740712, now seen corresponding path program 1 times
[2024-12-02 06:06:39,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 06:06:39,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635771887]
[2024-12-02 06:06:39,014 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:06:39,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 06:06:39,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:06:39,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 06:06:39,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 06:06:39,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635771887]
[2024-12-02 06:06:39,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635771887] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 06:06:39,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 06:06:39,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2024-12-02 06:06:39,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120678692]
[2024-12-02 06:06:39,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 06:06:39,062 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 06:06:39,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 06:06:39,063 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 06:06:39,063 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 06:06:39,093 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 149
[2024-12-02 06:06:39,093 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 149 transitions, 325 flow. Second operand has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 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)
[2024-12-02 06:06:39,093 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-02 06:06:39,093 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 149
[2024-12-02 06:06:39,093 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-02 06:06:51,183 INFO L124 PetriNetUnfolderBase]: 104120/184734 cut-off events.
[2024-12-02 06:06:51,184 INFO L125 PetriNetUnfolderBase]: For 1847/1847 co-relation queries the response was YES.
[2024-12-02 06:06:51,468 INFO L83 FinitePrefix]: Finished finitePrefix Result has 330246 conditions, 184734 events. 104120/184734 cut-off events. For 1847/1847 co-relation queries the response was YES. Maximal size of possible extension queue 3800. Compared 1929572 event pairs, 89797 based on Foata normal form. 41166/213785 useless extension candidates. Maximal degree in co-relation 145878. Up to 124602 conditions per place.
[2024-12-02 06:06:51,899 INFO L140 encePairwiseOnDemand]: 123/149 looper letters, 93 selfloop transitions, 2 changer transitions 0/160 dead transitions.
[2024-12-02 06:06:51,899 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 160 transitions, 537 flow
[2024-12-02 06:06:51,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 06:06:51,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-12-02 06:06:51,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 332 transitions.
[2024-12-02 06:06:51,900 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7427293064876958
[2024-12-02 06:06:51,901 INFO L175 Difference]: Start difference. First operand has 131 places, 149 transitions, 325 flow. Second operand 3 states and 332 transitions.
[2024-12-02 06:06:51,901 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 160 transitions, 537 flow
[2024-12-02 06:06:51,903 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 160 transitions, 537 flow, removed 0 selfloop flow, removed 0 redundant places.
[2024-12-02 06:06:51,904 INFO L231 Difference]: Finished difference. Result has 130 places, 124 transitions, 279 flow
[2024-12-02 06:06:51,904 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=275, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=279, PETRI_PLACES=130, PETRI_TRANSITIONS=124}
[2024-12-02 06:06:51,904 INFO L279 CegarLoopForPetriNet]: 131 programPoint places, -1 predicate places.
[2024-12-02 06:06:51,904 INFO L471 AbstractCegarLoop]: Abstraction has has 130 places, 124 transitions, 279 flow
[2024-12-02 06:06:51,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 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)
[2024-12-02 06:06:51,904 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 06:06:51,904 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1]
[2024-12-02 06:06:51,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2024-12-02 06:06:51,905 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 38 more)] ===
[2024-12-02 06:06:51,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:06:51,905 INFO L85 PathProgramCache]: Analyzing trace with hash 740713, now seen corresponding path program 1 times
[2024-12-02 06:06:51,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 06:06:51,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859993071]
[2024-12-02 06:06:51,905 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:06:51,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 06:06:51,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:06:51,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 06:06:51,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 06:06:51,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859993071]
[2024-12-02 06:06:51,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859993071] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 06:06:51,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 06:06:51,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2024-12-02 06:06:51,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222704931]
[2024-12-02 06:06:51,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 06:06:51,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 06:06:51,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 06:06:51,970 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 06:06:51,971 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 06:06:52,002 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 149
[2024-12-02 06:06:52,002 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 124 transitions, 279 flow. Second operand has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 06:06:52,002 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-02 06:06:52,002 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 149
[2024-12-02 06:06:52,003 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-02 06:07:03,447 INFO L124 PetriNetUnfolderBase]: 97063/178093 cut-off events.
[2024-12-02 06:07:03,447 INFO L125 PetriNetUnfolderBase]: For 3845/3845 co-relation queries the response was YES.
[2024-12-02 06:07:03,744 INFO L83 FinitePrefix]: Finished finitePrefix Result has 316541 conditions, 178093 events. 97063/178093 cut-off events. For 3845/3845 co-relation queries the response was YES. Maximal size of possible extension queue 3815. Compared 1917402 event pairs, 63133 based on Foata normal form. 1/164955 useless extension candidates. Maximal degree in co-relation 270154. Up to 134378 conditions per place.
[2024-12-02 06:07:04,155 INFO L140 encePairwiseOnDemand]: 145/149 looper letters, 70 selfloop transitions, 2 changer transitions 0/138 dead transitions.
[2024-12-02 06:07:04,155 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 138 transitions, 451 flow
[2024-12-02 06:07:04,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 06:07:04,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-12-02 06:07:04,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 278 transitions.
[2024-12-02 06:07:04,156 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6219239373601789
[2024-12-02 06:07:04,156 INFO L175 Difference]: Start difference. First operand has 130 places, 124 transitions, 279 flow. Second operand 3 states and 278 transitions.
[2024-12-02 06:07:04,156 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 138 transitions, 451 flow
[2024-12-02 06:07:04,684 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 138 transitions, 447 flow, removed 0 selfloop flow, removed 2 redundant places.
[2024-12-02 06:07:04,685 INFO L231 Difference]: Finished difference. Result has 131 places, 125 transitions, 289 flow
[2024-12-02 06:07:04,685 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=275, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=289, PETRI_PLACES=131, PETRI_TRANSITIONS=125}
[2024-12-02 06:07:04,686 INFO L279 CegarLoopForPetriNet]: 131 programPoint places, 0 predicate places.
[2024-12-02 06:07:04,686 INFO L471 AbstractCegarLoop]: Abstraction has has 131 places, 125 transitions, 289 flow
[2024-12-02 06:07:04,686 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 06:07:04,686 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 06:07:04,686 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1]
[2024-12-02 06:07:04,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2024-12-02 06:07:04,686 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 38 more)] ===
[2024-12-02 06:07:04,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:07:04,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1188481207, now seen corresponding path program 1 times
[2024-12-02 06:07:04,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 06:07:04,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246052995]
[2024-12-02 06:07:04,687 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:07:04,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 06:07:04,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:07:04,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 06:07:04,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 06:07:04,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246052995]
[2024-12-02 06:07:04,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246052995] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 06:07:04,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 06:07:04,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-12-02 06:07:04,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658124076]
[2024-12-02 06:07:04,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 06:07:04,783 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 06:07:04,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 06:07:04,783 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 06:07:04,783 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 06:07:04,842 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 149
[2024-12-02 06:07:04,842 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 125 transitions, 289 flow. Second operand has 4 states, 4 states have (on average 69.5) internal successors, (278), 4 states have internal predecessors, (278), 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)
[2024-12-02 06:07:04,842 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-02 06:07:04,842 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 149
[2024-12-02 06:07:04,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-02 06:07:16,318 INFO L124 PetriNetUnfolderBase]: 97051/172655 cut-off events.
[2024-12-02 06:07:16,318 INFO L125 PetriNetUnfolderBase]: For 8939/8939 co-relation queries the response was YES.
[2024-12-02 06:07:16,650 INFO L83 FinitePrefix]: Finished finitePrefix Result has 315472 conditions, 172655 events. 97051/172655 cut-off events. For 8939/8939 co-relation queries the response was YES. Maximal size of possible extension queue 3559. Compared 1784429 event pairs, 85331 based on Foata normal form. 13/163654 useless extension candidates. Maximal degree in co-relation 264932. Up to 133978 conditions per place.
[2024-12-02 06:07:17,058 INFO L140 encePairwiseOnDemand]: 145/149 looper letters, 95 selfloop transitions, 4 changer transitions 0/165 dead transitions.
[2024-12-02 06:07:17,058 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 165 transitions, 571 flow
[2024-12-02 06:07:17,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-12-02 06:07:17,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-12-02 06:07:17,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 372 transitions.
[2024-12-02 06:07:17,216 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6241610738255033
[2024-12-02 06:07:17,216 INFO L175 Difference]: Start difference. First operand has 131 places, 125 transitions, 289 flow. Second operand 4 states and 372 transitions.
[2024-12-02 06:07:17,216 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 165 transitions, 571 flow
[2024-12-02 06:07:17,217 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 165 transitions, 569 flow, removed 0 selfloop flow, removed 1 redundant places.
[2024-12-02 06:07:17,219 INFO L231 Difference]: Finished difference. Result has 134 places, 127 transitions, 312 flow
[2024-12-02 06:07:17,219 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=287, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=312, PETRI_PLACES=134, PETRI_TRANSITIONS=127}
[2024-12-02 06:07:17,219 INFO L279 CegarLoopForPetriNet]: 131 programPoint places, 3 predicate places.
[2024-12-02 06:07:17,219 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 127 transitions, 312 flow
[2024-12-02 06:07:17,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 69.5) internal successors, (278), 4 states have internal predecessors, (278), 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)
[2024-12-02 06:07:17,220 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 06:07:17,220 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1]
[2024-12-02 06:07:17,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2024-12-02 06:07:17,220 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 38 more)] ===
[2024-12-02 06:07:17,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:07:17,220 INFO L85 PathProgramCache]: Analyzing trace with hash -105356956, now seen corresponding path program 1 times
[2024-12-02 06:07:17,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 06:07:17,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563190393]
[2024-12-02 06:07:17,220 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:07:17,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 06:07:17,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:07:17,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 06:07:17,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 06:07:17,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563190393]
[2024-12-02 06:07:17,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563190393] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 06:07:17,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 06:07:17,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 06:07:17,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764646459]
[2024-12-02 06:07:17,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 06:07:17,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 06:07:17,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 06:07:17,350 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 06:07:17,350 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-12-02 06:07:17,482 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 149
[2024-12-02 06:07:17,483 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 127 transitions, 312 flow. Second operand has 5 states, 5 states have (on average 69.8) internal successors, (349), 5 states have internal predecessors, (349), 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)
[2024-12-02 06:07:17,483 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-02 06:07:17,483 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 149
[2024-12-02 06:07:17,483 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-02 06:07:28,815 INFO L124 PetriNetUnfolderBase]: 96739/172870 cut-off events.
[2024-12-02 06:07:28,815 INFO L125 PetriNetUnfolderBase]: For 22104/22104 co-relation queries the response was YES.
[2024-12-02 06:07:29,146 INFO L83 FinitePrefix]: Finished finitePrefix Result has 322163 conditions, 172870 events. 96739/172870 cut-off events. For 22104/22104 co-relation queries the response was YES. Maximal size of possible extension queue 3622. Compared 1800572 event pairs, 74053 based on Foata normal form. 169/164475 useless extension candidates. Maximal degree in co-relation 208362. Up to 126282 conditions per place.
[2024-12-02 06:07:29,724 INFO L140 encePairwiseOnDemand]: 145/149 looper letters, 131 selfloop transitions, 6 changer transitions 0/203 dead transitions.
[2024-12-02 06:07:29,724 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 203 transitions, 742 flow
[2024-12-02 06:07:29,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-12-02 06:07:29,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2024-12-02 06:07:29,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 478 transitions.
[2024-12-02 06:07:29,726 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6416107382550336
[2024-12-02 06:07:29,726 INFO L175 Difference]: Start difference. First operand has 134 places, 127 transitions, 312 flow. Second operand 5 states and 478 transitions.
[2024-12-02 06:07:29,726 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 203 transitions, 742 flow
[2024-12-02 06:07:29,730 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 203 transitions, 733 flow, removed 2 selfloop flow, removed 2 redundant places.
[2024-12-02 06:07:29,732 INFO L231 Difference]: Finished difference. Result has 137 places, 128 transitions, 328 flow
[2024-12-02 06:07:29,732 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=303, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=328, PETRI_PLACES=137, PETRI_TRANSITIONS=128}
[2024-12-02 06:07:29,732 INFO L279 CegarLoopForPetriNet]: 131 programPoint places, 6 predicate places.
[2024-12-02 06:07:29,732 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 128 transitions, 328 flow
[2024-12-02 06:07:29,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 69.8) internal successors, (349), 5 states have internal predecessors, (349), 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)
[2024-12-02 06:07:29,733 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 06:07:29,733 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 06:07:29,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2024-12-02 06:07:29,733 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 38 more)] ===
[2024-12-02 06:07:29,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:07:29,733 INFO L85 PathProgramCache]: Analyzing trace with hash 922907532, now seen corresponding path program 1 times
[2024-12-02 06:07:29,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 06:07:29,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469060275]
[2024-12-02 06:07:29,734 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:07:29,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 06:07:29,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:07:29,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 06:07:29,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 06:07:29,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469060275]
[2024-12-02 06:07:29,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469060275] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 06:07:29,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 06:07:29,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 06:07:29,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105843463]
[2024-12-02 06:07:29,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 06:07:29,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 06:07:29,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 06:07:29,897 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 06:07:29,897 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-12-02 06:07:29,969 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 149
[2024-12-02 06:07:29,970 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 128 transitions, 328 flow. Second operand has 5 states, 5 states have (on average 65.6) internal successors, (328), 5 states have internal predecessors, (328), 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)
[2024-12-02 06:07:29,970 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-02 06:07:29,970 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 149
[2024-12-02 06:07:29,970 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-02 06:07:40,247 INFO L124 PetriNetUnfolderBase]: 90655/161060 cut-off events.
[2024-12-02 06:07:40,248 INFO L125 PetriNetUnfolderBase]: For 30891/30891 co-relation queries the response was YES.
[2024-12-02 06:07:40,566 INFO L83 FinitePrefix]: Finished finitePrefix Result has 304454 conditions, 161060 events. 90655/161060 cut-off events. For 30891/30891 co-relation queries the response was YES. Maximal size of possible extension queue 3347. Compared 1679900 event pairs, 3899 based on Foata normal form. 0/159081 useless extension candidates. Maximal degree in co-relation 283762. Up to 99996 conditions per place.
[2024-12-02 06:07:40,953 INFO L140 encePairwiseOnDemand]: 141/149 looper letters, 162 selfloop transitions, 5 changer transitions 0/229 dead transitions.
[2024-12-02 06:07:40,953 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 229 transitions, 917 flow
[2024-12-02 06:07:40,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-12-02 06:07:40,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2024-12-02 06:07:40,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 553 transitions.
[2024-12-02 06:07:40,955 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6185682326621924
[2024-12-02 06:07:40,955 INFO L175 Difference]: Start difference. First operand has 137 places, 128 transitions, 328 flow. Second operand 6 states and 553 transitions.
[2024-12-02 06:07:40,955 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 229 transitions, 917 flow
[2024-12-02 06:07:40,959 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 229 transitions, 885 flow, removed 8 selfloop flow, removed 3 redundant places.
[2024-12-02 06:07:40,960 INFO L231 Difference]: Finished difference. Result has 134 places, 125 transitions, 315 flow
[2024-12-02 06:07:40,960 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=301, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=315, PETRI_PLACES=134, PETRI_TRANSITIONS=125}
[2024-12-02 06:07:40,961 INFO L279 CegarLoopForPetriNet]: 131 programPoint places, 3 predicate places.
[2024-12-02 06:07:40,961 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 125 transitions, 315 flow
[2024-12-02 06:07:40,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 65.6) internal successors, (328), 5 states have internal predecessors, (328), 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)
[2024-12-02 06:07:40,961 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 06:07:40,961 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 06:07:40,961 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2024-12-02 06:07:40,961 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 38 more)] ===
[2024-12-02 06:07:40,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:07:40,961 INFO L85 PathProgramCache]: Analyzing trace with hash 922907531, now seen corresponding path program 1 times
[2024-12-02 06:07:40,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 06:07:40,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578113871]
[2024-12-02 06:07:40,962 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:07:40,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 06:07:40,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:07:41,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 06:07:41,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 06:07:41,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578113871]
[2024-12-02 06:07:41,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578113871] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 06:07:41,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 06:07:41,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 06:07:41,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530431630]
[2024-12-02 06:07:41,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 06:07:41,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 06:07:41,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 06:07:41,049 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 06:07:41,049 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-12-02 06:07:41,165 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 149
[2024-12-02 06:07:41,165 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 125 transitions, 315 flow. Second operand has 5 states, 5 states have (on average 63.6) internal successors, (318), 5 states have internal predecessors, (318), 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)
[2024-12-02 06:07:41,165 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-02 06:07:41,165 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 149
[2024-12-02 06:07:41,165 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-02 06:07:53,907 INFO L124 PetriNetUnfolderBase]: 115011/200102 cut-off events.
[2024-12-02 06:07:53,907 INFO L125 PetriNetUnfolderBase]: For 22581/22581 co-relation queries the response was YES.
[2024-12-02 06:07:54,314 INFO L83 FinitePrefix]: Finished finitePrefix Result has 376699 conditions, 200102 events. 115011/200102 cut-off events. For 22581/22581 co-relation queries the response was YES. Maximal size of possible extension queue 3981. Compared 2054643 event pairs, 67560 based on Foata normal form. 0/190032 useless extension candidates. Maximal degree in co-relation 277110. Up to 117544 conditions per place.
[2024-12-02 06:07:54,877 INFO L140 encePairwiseOnDemand]: 137/149 looper letters, 175 selfloop transitions, 8 changer transitions 0/238 dead transitions.
[2024-12-02 06:07:54,878 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 238 transitions, 945 flow
[2024-12-02 06:07:54,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-12-02 06:07:54,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2024-12-02 06:07:54,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 494 transitions.
[2024-12-02 06:07:54,879 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6630872483221476
[2024-12-02 06:07:54,880 INFO L175 Difference]: Start difference. First operand has 134 places, 125 transitions, 315 flow. Second operand 5 states and 494 transitions.
[2024-12-02 06:07:54,880 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 238 transitions, 945 flow
[2024-12-02 06:07:55,005 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 238 transitions, 944 flow, removed 0 selfloop flow, removed 1 redundant places.
[2024-12-02 06:07:55,007 INFO L231 Difference]: Finished difference. Result has 139 places, 128 transitions, 371 flow
[2024-12-02 06:07:55,007 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=312, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=371, PETRI_PLACES=139, PETRI_TRANSITIONS=128}
[2024-12-02 06:07:55,007 INFO L279 CegarLoopForPetriNet]: 131 programPoint places, 8 predicate places.
[2024-12-02 06:07:55,007 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 128 transitions, 371 flow
[2024-12-02 06:07:55,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 63.6) internal successors, (318), 5 states have internal predecessors, (318), 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)
[2024-12-02 06:07:55,008 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 06:07:55,008 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 06:07:55,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16
[2024-12-02 06:07:55,008 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 38 more)] ===
[2024-12-02 06:07:55,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:07:55,008 INFO L85 PathProgramCache]: Analyzing trace with hash -1517828757, now seen corresponding path program 1 times
[2024-12-02 06:07:55,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 06:07:55,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514582260]
[2024-12-02 06:07:55,009 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:07:55,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 06:07:55,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:07:55,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 06:07:55,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 06:07:55,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514582260]
[2024-12-02 06:07:55,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514582260] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 06:07:55,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 06:07:55,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 06:07:55,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352007882]
[2024-12-02 06:07:55,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 06:07:55,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 06:07:55,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 06:07:55,064 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 06:07:55,064 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-12-02 06:07:55,070 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 149
[2024-12-02 06:07:55,070 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 128 transitions, 371 flow. Second operand has 4 states, 4 states have (on average 71.25) internal successors, (285), 4 states have internal predecessors, (285), 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)
[2024-12-02 06:07:55,071 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-02 06:07:55,071 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 149
[2024-12-02 06:07:55,071 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-02 06:08:07,392 INFO L124 PetriNetUnfolderBase]: 97966/178071 cut-off events.
[2024-12-02 06:08:07,392 INFO L125 PetriNetUnfolderBase]: For 57180/57675 co-relation queries the response was YES.
[2024-12-02 06:08:07,792 INFO L83 FinitePrefix]: Finished finitePrefix Result has 352083 conditions, 178071 events. 97966/178071 cut-off events. For 57180/57675 co-relation queries the response was YES. Maximal size of possible extension queue 3755. Compared 1898616 event pairs, 60892 based on Foata normal form. 13/168808 useless extension candidates. Maximal degree in co-relation 319518. Up to 135951 conditions per place.
[2024-12-02 06:08:08,198 INFO L140 encePairwiseOnDemand]: 146/149 looper letters, 101 selfloop transitions, 3 changer transitions 0/165 dead transitions.
[2024-12-02 06:08:08,198 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 165 transitions, 677 flow
[2024-12-02 06:08:08,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-12-02 06:08:08,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-12-02 06:08:08,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 374 transitions.
[2024-12-02 06:08:08,200 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.62751677852349
[2024-12-02 06:08:08,200 INFO L175 Difference]: Start difference. First operand has 139 places, 128 transitions, 371 flow. Second operand 4 states and 374 transitions.
[2024-12-02 06:08:08,200 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 165 transitions, 677 flow
[2024-12-02 06:08:08,274 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 165 transitions, 668 flow, removed 0 selfloop flow, removed 2 redundant places.
[2024-12-02 06:08:08,275 INFO L231 Difference]: Finished difference. Result has 140 places, 127 transitions, 368 flow
[2024-12-02 06:08:08,275 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=362, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=368, PETRI_PLACES=140, PETRI_TRANSITIONS=127}
[2024-12-02 06:08:08,275 INFO L279 CegarLoopForPetriNet]: 131 programPoint places, 9 predicate places.
[2024-12-02 06:08:08,275 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 127 transitions, 368 flow
[2024-12-02 06:08:08,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 71.25) internal successors, (285), 4 states have internal predecessors, (285), 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)
[2024-12-02 06:08:08,275 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 06:08:08,276 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1]
[2024-12-02 06:08:08,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17
[2024-12-02 06:08:08,276 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 38 more)] ===
[2024-12-02 06:08:08,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:08:08,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1147908112, now seen corresponding path program 1 times
[2024-12-02 06:08:08,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 06:08:08,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61436665]
[2024-12-02 06:08:08,276 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:08:08,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 06:08:08,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:08:08,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 06:08:08,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 06:08:08,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61436665]
[2024-12-02 06:08:08,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61436665] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 06:08:08,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 06:08:08,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-12-02 06:08:08,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849368851]
[2024-12-02 06:08:08,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 06:08:08,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-12-02 06:08:08,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 06:08:08,418 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-12-02 06:08:08,418 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2024-12-02 06:08:08,545 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 149
[2024-12-02 06:08:08,545 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 127 transitions, 368 flow. Second operand has 7 states, 7 states have (on average 69.14285714285714) internal successors, (484), 7 states have internal predecessors, (484), 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)
[2024-12-02 06:08:08,546 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-02 06:08:08,546 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 149
[2024-12-02 06:08:08,546 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-02 06:08:21,528 INFO L124 PetriNetUnfolderBase]: 104374/189226 cut-off events.
[2024-12-02 06:08:21,528 INFO L125 PetriNetUnfolderBase]: For 57021/57516 co-relation queries the response was YES.
[2024-12-02 06:08:21,962 INFO L83 FinitePrefix]: Finished finitePrefix Result has 370701 conditions, 189226 events. 104374/189226 cut-off events. For 57021/57516 co-relation queries the response was YES. Maximal size of possible extension queue 4040. Compared 2028914 event pairs, 46279 based on Foata normal form. 2197/181404 useless extension candidates. Maximal degree in co-relation 338141. Up to 112174 conditions per place.
[2024-12-02 06:08:22,588 INFO L140 encePairwiseOnDemand]: 144/149 looper letters, 210 selfloop transitions, 7 changer transitions 0/276 dead transitions.
[2024-12-02 06:08:22,588 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 276 transitions, 1149 flow
[2024-12-02 06:08:22,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-12-02 06:08:22,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2024-12-02 06:08:22,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 681 transitions.
[2024-12-02 06:08:22,589 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6529242569511026
[2024-12-02 06:08:22,590 INFO L175 Difference]: Start difference. First operand has 140 places, 127 transitions, 368 flow. Second operand 7 states and 681 transitions.
[2024-12-02 06:08:22,590 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 276 transitions, 1149 flow
[2024-12-02 06:08:22,648 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 276 transitions, 1143 flow, removed 0 selfloop flow, removed 3 redundant places.
[2024-12-02 06:08:22,649 INFO L231 Difference]: Finished difference. Result has 143 places, 127 transitions, 375 flow
[2024-12-02 06:08:22,650 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=354, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=375, PETRI_PLACES=143, PETRI_TRANSITIONS=127}
[2024-12-02 06:08:22,650 INFO L279 CegarLoopForPetriNet]: 131 programPoint places, 12 predicate places.
[2024-12-02 06:08:22,650 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 127 transitions, 375 flow
[2024-12-02 06:08:22,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 69.14285714285714) internal successors, (484), 7 states have internal predecessors, (484), 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)
[2024-12-02 06:08:22,650 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 06:08:22,650 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 06:08:22,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18
[2024-12-02 06:08:22,650 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 38 more)] ===
[2024-12-02 06:08:22,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:08:22,650 INFO L85 PathProgramCache]: Analyzing trace with hash 108736435, now seen corresponding path program 1 times
[2024-12-02 06:08:22,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 06:08:22,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537638668]
[2024-12-02 06:08:22,651 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:08:22,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 06:08:22,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:08:22,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 06:08:22,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 06:08:22,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537638668]
[2024-12-02 06:08:22,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537638668] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 06:08:22,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 06:08:22,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 06:08:22,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141926664]
[2024-12-02 06:08:22,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 06:08:22,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 06:08:22,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 06:08:22,758 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 06:08:22,758 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-12-02 06:08:22,832 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 149
[2024-12-02 06:08:22,833 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 127 transitions, 375 flow. Second operand has 5 states, 5 states have (on average 66.0) internal successors, (330), 5 states have internal predecessors, (330), 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)
[2024-12-02 06:08:22,833 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-02 06:08:22,833 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 149
[2024-12-02 06:08:22,833 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-02 06:08:34,973 INFO L124 PetriNetUnfolderBase]: 97966/176131 cut-off events.
[2024-12-02 06:08:34,974 INFO L125 PetriNetUnfolderBase]: For 66274/66285 co-relation queries the response was YES.
[2024-12-02 06:08:35,415 INFO L83 FinitePrefix]: Finished finitePrefix Result has 359885 conditions, 176131 events. 97966/176131 cut-off events. For 66274/66285 co-relation queries the response was YES. Maximal size of possible extension queue 3710. Compared 1854931 event pairs, 38625 based on Foata normal form. 0/168975 useless extension candidates. Maximal degree in co-relation 326412. Up to 99720 conditions per place.
[2024-12-02 06:08:35,816 INFO L140 encePairwiseOnDemand]: 142/149 looper letters, 166 selfloop transitions, 7 changer transitions 0/229 dead transitions.
[2024-12-02 06:08:35,816 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 229 transitions, 1017 flow
[2024-12-02 06:08:35,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-12-02 06:08:35,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2024-12-02 06:08:35,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 550 transitions.
[2024-12-02 06:08:35,817 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6152125279642058
[2024-12-02 06:08:35,817 INFO L175 Difference]: Start difference. First operand has 143 places, 127 transitions, 375 flow. Second operand 6 states and 550 transitions.
[2024-12-02 06:08:35,817 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 229 transitions, 1017 flow
[2024-12-02 06:08:35,916 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 229 transitions, 978 flow, removed 6 selfloop flow, removed 7 redundant places.
[2024-12-02 06:08:35,917 INFO L231 Difference]: Finished difference. Result has 137 places, 126 transitions, 373 flow
[2024-12-02 06:08:35,917 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=344, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=373, PETRI_PLACES=137, PETRI_TRANSITIONS=126}
[2024-12-02 06:08:35,918 INFO L279 CegarLoopForPetriNet]: 131 programPoint places, 6 predicate places.
[2024-12-02 06:08:35,918 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 126 transitions, 373 flow
[2024-12-02 06:08:35,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 66.0) internal successors, (330), 5 states have internal predecessors, (330), 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)
[2024-12-02 06:08:35,918 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 06:08:35,918 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 06:08:35,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19
[2024-12-02 06:08:35,918 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 38 more)] ===
[2024-12-02 06:08:35,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:08:35,918 INFO L85 PathProgramCache]: Analyzing trace with hash 108736434, now seen corresponding path program 1 times
[2024-12-02 06:08:35,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 06:08:35,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894407072]
[2024-12-02 06:08:35,918 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:08:35,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 06:08:35,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:08:36,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 06:08:36,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 06:08:36,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894407072]
[2024-12-02 06:08:36,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894407072] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 06:08:36,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 06:08:36,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 06:08:36,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123799495]
[2024-12-02 06:08:36,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 06:08:36,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-12-02 06:08:36,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 06:08:36,029 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-12-02 06:08:36,029 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-12-02 06:08:36,150 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 149
[2024-12-02 06:08:36,151 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 126 transitions, 373 flow. Second operand has 6 states, 6 states have (on average 64.0) internal successors, (384), 6 states have internal predecessors, (384), 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)
[2024-12-02 06:08:36,151 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-02 06:08:36,151 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 149
[2024-12-02 06:08:36,151 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-02 06:08:51,322 INFO L124 PetriNetUnfolderBase]: 129428/224933 cut-off events.
[2024-12-02 06:08:51,322 INFO L125 PetriNetUnfolderBase]: For 54375/55355 co-relation queries the response was YES.
[2024-12-02 06:08:51,783 INFO L83 FinitePrefix]: Finished finitePrefix Result has 454209 conditions, 224933 events. 129428/224933 cut-off events. For 54375/55355 co-relation queries the response was YES. Maximal size of possible extension queue 4537. Compared 2336155 event pairs, 46999 based on Foata normal form. 0/213651 useless extension candidates. Maximal degree in co-relation 390791. Up to 117244 conditions per place.
[2024-12-02 06:08:52,281 INFO L140 encePairwiseOnDemand]: 138/149 looper letters, 179 selfloop transitions, 10 changer transitions 0/239 dead transitions.
[2024-12-02 06:08:52,281 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 239 transitions, 1044 flow
[2024-12-02 06:08:52,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-12-02 06:08:52,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2024-12-02 06:08:52,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 491 transitions.
[2024-12-02 06:08:52,283 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6590604026845638
[2024-12-02 06:08:52,283 INFO L175 Difference]: Start difference. First operand has 137 places, 126 transitions, 373 flow. Second operand 5 states and 491 transitions.
[2024-12-02 06:08:52,283 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 239 transitions, 1044 flow
[2024-12-02 06:08:52,513 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 239 transitions, 1043 flow, removed 0 selfloop flow, removed 1 redundant places.
[2024-12-02 06:08:52,514 INFO L231 Difference]: Finished difference. Result has 143 places, 130 transitions, 438 flow
[2024-12-02 06:08:52,514 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=372, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=438, PETRI_PLACES=143, PETRI_TRANSITIONS=130}
[2024-12-02 06:08:52,514 INFO L279 CegarLoopForPetriNet]: 131 programPoint places, 12 predicate places.
[2024-12-02 06:08:52,514 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 130 transitions, 438 flow
[2024-12-02 06:08:52,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 64.0) internal successors, (384), 6 states have internal predecessors, (384), 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)
[2024-12-02 06:08:52,515 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 06:08:52,515 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1]
[2024-12-02 06:08:52,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20
[2024-12-02 06:08:52,515 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 38 more)] ===
[2024-12-02 06:08:52,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:08:52,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1225412313, now seen corresponding path program 1 times
[2024-12-02 06:08:52,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 06:08:52,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358570341]
[2024-12-02 06:08:52,515 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:08:52,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 06:08:52,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-12-02 06:08:52,537 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-12-02 06:08:52,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-12-02 06:08:52,554 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-12-02 06:08:52,554 INFO L340 BasicCegarLoop]: Counterexample is feasible
[2024-12-02 06:08:52,554 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (40 of 41 remaining)
[2024-12-02 06:08:52,554 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (39 of 41 remaining)
[2024-12-02 06:08:52,554 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (38 of 41 remaining)
[2024-12-02 06:08:52,554 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (37 of 41 remaining)
[2024-12-02 06:08:52,554 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (36 of 41 remaining)
[2024-12-02 06:08:52,554 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (35 of 41 remaining)
[2024-12-02 06:08:52,554 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (34 of 41 remaining)
[2024-12-02 06:08:52,554 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK (33 of 41 remaining)
[2024-12-02 06:08:52,554 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (32 of 41 remaining)
[2024-12-02 06:08:52,554 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (31 of 41 remaining)
[2024-12-02 06:08:52,555 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 41 remaining)
[2024-12-02 06:08:52,555 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (29 of 41 remaining)
[2024-12-02 06:08:52,555 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 41 remaining)
[2024-12-02 06:08:52,555 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 41 remaining)
[2024-12-02 06:08:52,555 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 41 remaining)
[2024-12-02 06:08:52,555 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 41 remaining)
[2024-12-02 06:08:52,555 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 41 remaining)
[2024-12-02 06:08:52,555 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 41 remaining)
[2024-12-02 06:08:52,555 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 41 remaining)
[2024-12-02 06:08:52,555 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 41 remaining)
[2024-12-02 06:08:52,555 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 41 remaining)
[2024-12-02 06:08:52,555 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 41 remaining)
[2024-12-02 06:08:52,555 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 41 remaining)
[2024-12-02 06:08:52,555 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 41 remaining)
[2024-12-02 06:08:52,555 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 41 remaining)
[2024-12-02 06:08:52,555 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 41 remaining)
[2024-12-02 06:08:52,555 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 41 remaining)
[2024-12-02 06:08:52,555 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 41 remaining)
[2024-12-02 06:08:52,555 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 41 remaining)
[2024-12-02 06:08:52,556 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 41 remaining)
[2024-12-02 06:08:52,556 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 41 remaining)
[2024-12-02 06:08:52,556 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 41 remaining)
[2024-12-02 06:08:52,556 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 41 remaining)
[2024-12-02 06:08:52,556 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 41 remaining)
[2024-12-02 06:08:52,556 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 41 remaining)
[2024-12-02 06:08:52,556 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 41 remaining)
[2024-12-02 06:08:52,556 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 41 remaining)
[2024-12-02 06:08:52,556 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 41 remaining)
[2024-12-02 06:08:52,556 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 41 remaining)
[2024-12-02 06:08:52,556 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 41 remaining)
[2024-12-02 06:08:52,556 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 41 remaining)
[2024-12-02 06:08:52,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21
[2024-12-02 06:08:52,557 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 06:08:52,558 WARN L246 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-12-02 06:08:52,558 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances.
[2024-12-02 06:08:52,591 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions.
[2024-12-02 06:08:52,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 163 places, 186 transitions, 412 flow
[2024-12-02 06:08:52,634 INFO L124 PetriNetUnfolderBase]: 65/444 cut-off events.
[2024-12-02 06:08:52,634 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES.
[2024-12-02 06:08:52,639 INFO L83 FinitePrefix]: Finished finitePrefix Result has 495 conditions, 444 events. 65/444 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2428 event pairs, 6 based on Foata normal form. 0/274 useless extension candidates. Maximal degree in co-relation 320. Up to 32 conditions per place.
[2024-12-02 06:08:52,639 INFO L82 GeneralOperation]: Start removeDead. Operand has 163 places, 186 transitions, 412 flow
[2024-12-02 06:08:52,645 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 163 places, 186 transitions, 412 flow
[2024-12-02 06:08:52,646 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-12-02 06:08:52,646 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;@7a188d2d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-12-02 06:08:52,646 INFO L334 AbstractCegarLoop]: Starting to check reachability of 49 error locations.
[2024-12-02 06:08:52,648 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2024-12-02 06:08:52,648 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events.
[2024-12-02 06:08:52,648 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-12-02 06:08:52,649 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 06:08:52,649 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1]
[2024-12-02 06:08:52,649 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 46 more)] ===
[2024-12-02 06:08:52,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:08:52,649 INFO L85 PathProgramCache]: Analyzing trace with hash 925410, now seen corresponding path program 1 times
[2024-12-02 06:08:52,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 06:08:52,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724066847]
[2024-12-02 06:08:52,649 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:08:52,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 06:08:52,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:08:52,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 06:08:52,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 06:08:52,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724066847]
[2024-12-02 06:08:52,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724066847] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 06:08:52,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 06:08:52,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2024-12-02 06:08:52,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913367012]
[2024-12-02 06:08:52,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 06:08:52,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 06:08:52,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 06:08:52,689 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 06:08:52,689 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 06:08:52,725 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 186
[2024-12-02 06:08:52,726 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 186 transitions, 412 flow. Second operand has 3 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 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)
[2024-12-02 06:08:52,726 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-02 06:08:52,726 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 186
[2024-12-02 06:08:52,726 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand