./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_13-arraycollapse_nr.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_0f7449ea-fbb7-4593-b4ae-4d39ba14156c/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f7449ea-fbb7-4593-b4ae-4d39ba14156c/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_0f7449ea-fbb7-4593-b4ae-4d39ba14156c/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f7449ea-fbb7-4593-b4ae-4d39ba14156c/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_13-arraycollapse_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f7449ea-fbb7-4593-b4ae-4d39ba14156c/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_0f7449ea-fbb7-4593-b4ae-4d39ba14156c/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 b018c23c1a90f89310fc4f08bf16b02660af5a398ccd47f63d319e7a234c112b
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-d790fec
[2024-12-02 12:51:34,213 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-12-02 12:51:34,271 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f7449ea-fbb7-4593-b4ae-4d39ba14156c/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf
[2024-12-02 12:51:34,276 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-12-02 12:51:34,276 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-12-02 12:51:34,299 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-12-02 12:51:34,299 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-12-02 12:51:34,300 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-12-02 12:51:34,300 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-12-02 12:51:34,300 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-12-02 12:51:34,300 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-12-02 12:51:34,300 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-12-02 12:51:34,301 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-12-02 12:51:34,301 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-12-02 12:51:34,301 INFO L153 SettingsManager]: * Use SBE=true
[2024-12-02 12:51:34,301 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-12-02 12:51:34,301 INFO L153 SettingsManager]: * sizeof long=4
[2024-12-02 12:51:34,301 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-12-02 12:51:34,301 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-12-02 12:51:34,301 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-12-02 12:51:34,301 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true
[2024-12-02 12:51:34,301 INFO L153 SettingsManager]: * Bitprecise bitfields=true
[2024-12-02 12:51:34,302 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true
[2024-12-02 12:51:34,302 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-12-02 12:51:34,302 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2024-12-02 12:51:34,302 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-12-02 12:51:34,302 INFO L153 SettingsManager]: * sizeof long double=12
[2024-12-02 12:51:34,302 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-12-02 12:51:34,302 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-12-02 12:51:34,302 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-12-02 12:51:34,302 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 12:51:34,302 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 12:51:34,302 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 12:51:34,302 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 12:51:34,303 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-12-02 12:51:34,303 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 12:51:34,303 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 12:51:34,303 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 12:51:34,303 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 12:51:34,303 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-12-02 12:51:34,303 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-12-02 12:51:34,303 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-12-02 12:51:34,303 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-12-02 12:51:34,303 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-12-02 12:51:34,303 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-12-02 12:51:34,304 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-12-02 12:51:34,304 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-12-02 12:51:34,304 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_0f7449ea-fbb7-4593-b4ae-4d39ba14156c/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 -> b018c23c1a90f89310fc4f08bf16b02660af5a398ccd47f63d319e7a234c112b
[2024-12-02 12:51:34,568 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-12-02 12:51:34,577 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-12-02 12:51:34,579 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-12-02 12:51:34,581 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-12-02 12:51:34,581 INFO L274 PluginConnector]: CDTParser initialized
[2024-12-02 12:51:34,582 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f7449ea-fbb7-4593-b4ae-4d39ba14156c/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/goblint-regression/09-regions_13-arraycollapse_nr.i
[2024-12-02 12:51:37,324 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f7449ea-fbb7-4593-b4ae-4d39ba14156c/bin/uautomizer-verify-84ZbGMXZE1/data/4b4ec7d20/beb4ae166dd44089bd33e30b9782f0ef/FLAG1e86a250c
[2024-12-02 12:51:37,589 INFO L384 CDTParser]: Found 1 translation units.
[2024-12-02 12:51:37,590 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f7449ea-fbb7-4593-b4ae-4d39ba14156c/sv-benchmarks/c/goblint-regression/09-regions_13-arraycollapse_nr.i
[2024-12-02 12:51:37,606 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f7449ea-fbb7-4593-b4ae-4d39ba14156c/bin/uautomizer-verify-84ZbGMXZE1/data/4b4ec7d20/beb4ae166dd44089bd33e30b9782f0ef/FLAG1e86a250c
[2024-12-02 12:51:37,621 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f7449ea-fbb7-4593-b4ae-4d39ba14156c/bin/uautomizer-verify-84ZbGMXZE1/data/4b4ec7d20/beb4ae166dd44089bd33e30b9782f0ef
[2024-12-02 12:51:37,623 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-12-02 12:51:37,625 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-12-02 12:51:37,626 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-12-02 12:51:37,626 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-12-02 12:51:37,631 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-12-02 12:51:37,632 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:51:37" (1/1) ...
[2024-12-02 12:51:37,633 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ea2d9b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:51:37, skipping insertion in model container
[2024-12-02 12:51:37,633 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:51:37" (1/1) ...
[2024-12-02 12:51:37,674 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-12-02 12:51:38,163 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 12:51:38,197 INFO L200 MainTranslator]: Completed pre-run
[2024-12-02 12:51:38,247 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 12:51:38,308 INFO L204 MainTranslator]: Completed translation
[2024-12-02 12:51:38,308 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:51:38 WrapperNode
[2024-12-02 12:51:38,309 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-12-02 12:51:38,309 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-12-02 12:51:38,309 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-12-02 12:51:38,310 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-12-02 12:51:38,315 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:51:38" (1/1) ...
[2024-12-02 12:51:38,332 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:51:38" (1/1) ...
[2024-12-02 12:51:38,360 INFO L138 Inliner]: procedures = 372, calls = 95, calls flagged for inlining = 14, calls inlined = 14, statements flattened = 228
[2024-12-02 12:51:38,361 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-12-02 12:51:38,361 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-12-02 12:51:38,361 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-12-02 12:51:38,362 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-12-02 12:51:38,369 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:51:38" (1/1) ...
[2024-12-02 12:51:38,369 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:51:38" (1/1) ...
[2024-12-02 12:51:38,373 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:51:38" (1/1) ...
[2024-12-02 12:51:38,396 INFO L175 MemorySlicer]: Split 90 memory accesses to 3 slices as follows [50, 24, 16]. 56 percent of accesses are in the largest equivalence class. The 60 initializations are split as follows [50, 0, 10]. The 19 writes are split as follows [0, 18, 1].
[2024-12-02 12:51:38,396 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:51:38" (1/1) ...
[2024-12-02 12:51:38,396 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:51:38" (1/1) ...
[2024-12-02 12:51:38,410 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:51:38" (1/1) ...
[2024-12-02 12:51:38,411 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:51:38" (1/1) ...
[2024-12-02 12:51:38,414 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:51:38" (1/1) ...
[2024-12-02 12:51:38,417 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:51:38" (1/1) ...
[2024-12-02 12:51:38,418 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:51:38" (1/1) ...
[2024-12-02 12:51:38,422 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-12-02 12:51:38,423 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-12-02 12:51:38,423 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-12-02 12:51:38,423 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-12-02 12:51:38,424 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:51:38" (1/1) ...
[2024-12-02 12:51:38,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 12:51:38,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f7449ea-fbb7-4593-b4ae-4d39ba14156c/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 12:51:38,449 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f7449ea-fbb7-4593-b4ae-4d39ba14156c/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-12-02 12:51:38,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f7449ea-fbb7-4593-b4ae-4d39ba14156c/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-12-02 12:51:38,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0
[2024-12-02 12:51:38,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1
[2024-12-02 12:51:38,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2
[2024-12-02 12:51:38,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0
[2024-12-02 12:51:38,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1
[2024-12-02 12:51:38,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2
[2024-12-02 12:51:38,471 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock
[2024-12-02 12:51:38,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0
[2024-12-02 12:51:38,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1
[2024-12-02 12:51:38,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2
[2024-12-02 12:51:38,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0
[2024-12-02 12:51:38,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1
[2024-12-02 12:51:38,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2
[2024-12-02 12:51:38,471 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock
[2024-12-02 12:51:38,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2024-12-02 12:51:38,472 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-12-02 12:51:38,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0
[2024-12-02 12:51:38,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1
[2024-12-02 12:51:38,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2
[2024-12-02 12:51:38,472 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun
[2024-12-02 12:51:38,472 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun
[2024-12-02 12:51:38,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-12-02 12:51:38,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1
[2024-12-02 12:51:38,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2
[2024-12-02 12:51:38,472 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-12-02 12:51:38,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-12-02 12:51:38,474 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 12:51:38,625 INFO L234 CfgBuilder]: Building ICFG
[2024-12-02 12:51:38,627 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-12-02 12:51:39,126 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program.
[2024-12-02 12:51:39,126 INFO L283 CfgBuilder]: Performing block encoding
[2024-12-02 12:51:39,478 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-12-02 12:51:39,479 INFO L312 CfgBuilder]: Removed 1 assume(true) statements.
[2024-12-02 12:51:39,479 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:51:39 BoogieIcfgContainer
[2024-12-02 12:51:39,479 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-12-02 12:51:39,481 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-12-02 12:51:39,481 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-12-02 12:51:39,486 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-12-02 12:51:39,486 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:51:37" (1/3) ...
[2024-12-02 12:51:39,486 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d0ec4e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:51:39, skipping insertion in model container
[2024-12-02 12:51:39,487 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:51:38" (2/3) ...
[2024-12-02 12:51:39,487 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d0ec4e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:51:39, skipping insertion in model container
[2024-12-02 12:51:39,487 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:51:39" (3/3) ...
[2024-12-02 12:51:39,488 INFO L128 eAbstractionObserver]: Analyzing ICFG 09-regions_13-arraycollapse_nr.i
[2024-12-02 12:51:39,504 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-12-02 12:51:39,505 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 09-regions_13-arraycollapse_nr.i that has 2 procedures, 107 locations, 1 initial locations, 1 loop locations, and 61 error locations.
[2024-12-02 12:51:39,505 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2024-12-02 12:51:39,566 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2024-12-02 12:51:39,599 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 110 places, 107 transitions, 218 flow
[2024-12-02 12:51:39,643 INFO L124 PetriNetUnfolderBase]: 1/106 cut-off events.
[2024-12-02 12:51:39,645 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-12-02 12:51:39,648 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110 conditions, 106 events. 1/106 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 336 event pairs, 0 based on Foata normal form. 0/44 useless extension candidates. Maximal degree in co-relation 66. Up to 2 conditions per place.
[2024-12-02 12:51:39,648 INFO L82 GeneralOperation]: Start removeDead. Operand has 110 places, 107 transitions, 218 flow
[2024-12-02 12:51:39,652 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 109 places, 106 transitions, 215 flow
[2024-12-02 12:51:39,659 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-12-02 12:51:39,670 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;@7f314472, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-12-02 12:51:39,670 INFO L334 AbstractCegarLoop]: Starting to check reachability of 74 error locations.
[2024-12-02 12:51:39,675 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2024-12-02 12:51:39,675 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events.
[2024-12-02 12:51:39,675 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-12-02 12:51:39,675 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 12:51:39,676 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1]
[2024-12-02 12:51:39,676 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] ===
[2024-12-02 12:51:39,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:51:39,681 INFO L85 PathProgramCache]: Analyzing trace with hash 661696, now seen corresponding path program 1 times
[2024-12-02 12:51:39,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 12:51:39,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292064680]
[2024-12-02 12:51:39,689 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:51:39,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 12:51:39,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:51:39,944 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 12:51:39,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 12:51:39,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292064680]
[2024-12-02 12:51:39,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292064680] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 12:51:39,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 12:51:39,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-12-02 12:51:39,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071672438]
[2024-12-02 12:51:39,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 12:51:39,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 12:51:39,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 12:51:39,980 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 12:51:39,980 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 12:51:40,095 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 107
[2024-12-02 12:51:40,098 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 106 transitions, 215 flow. Second operand has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 12:51:40,098 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-02 12:51:40,098 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 107
[2024-12-02 12:51:40,099 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-02 12:51:40,284 INFO L124 PetriNetUnfolderBase]: 64/293 cut-off events.
[2024-12-02 12:51:40,284 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-12-02 12:51:40,285 INFO L83 FinitePrefix]: Finished finitePrefix Result has 462 conditions, 293 events. 64/293 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1326 event pairs, 63 based on Foata normal form. 0/226 useless extension candidates. Maximal degree in co-relation 376. Up to 157 conditions per place.
[2024-12-02 12:51:40,287 INFO L140 encePairwiseOnDemand]: 91/107 looper letters, 30 selfloop transitions, 8 changer transitions 0/98 dead transitions.
[2024-12-02 12:51:40,287 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 98 transitions, 275 flow
[2024-12-02 12:51:40,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 12:51:40,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-12-02 12:51:40,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 229 transitions.
[2024-12-02 12:51:40,301 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7133956386292835
[2024-12-02 12:51:40,303 INFO L175 Difference]: Start difference. First operand has 109 places, 106 transitions, 215 flow. Second operand 3 states and 229 transitions.
[2024-12-02 12:51:40,304 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 98 transitions, 275 flow
[2024-12-02 12:51:40,308 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 98 transitions, 274 flow, removed 0 selfloop flow, removed 1 redundant places.
[2024-12-02 12:51:40,311 INFO L231 Difference]: Finished difference. Result has 102 places, 98 transitions, 214 flow
[2024-12-02 12:51:40,314 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=214, PETRI_PLACES=102, PETRI_TRANSITIONS=98}
[2024-12-02 12:51:40,317 INFO L279 CegarLoopForPetriNet]: 109 programPoint places, -7 predicate places.
[2024-12-02 12:51:40,317 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 98 transitions, 214 flow
[2024-12-02 12:51:40,318 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 12:51:40,318 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 12:51:40,318 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1]
[2024-12-02 12:51:40,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-12-02 12:51:40,318 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] ===
[2024-12-02 12:51:40,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:51:40,319 INFO L85 PathProgramCache]: Analyzing trace with hash 661697, now seen corresponding path program 1 times
[2024-12-02 12:51:40,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 12:51:40,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19574897]
[2024-12-02 12:51:40,319 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:51:40,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 12:51:40,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:51:40,441 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 12:51:40,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 12:51:40,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19574897]
[2024-12-02 12:51:40,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19574897] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 12:51:40,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 12:51:40,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-12-02 12:51:40,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632899286]
[2024-12-02 12:51:40,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 12:51:40,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 12:51:40,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 12:51:40,444 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 12:51:40,444 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 12:51:40,562 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 107
[2024-12-02 12:51:40,562 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 98 transitions, 214 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 12:51:40,562 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-02 12:51:40,562 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 107
[2024-12-02 12:51:40,562 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-02 12:51:40,709 INFO L124 PetriNetUnfolderBase]: 64/285 cut-off events.
[2024-12-02 12:51:40,709 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES.
[2024-12-02 12:51:40,710 INFO L83 FinitePrefix]: Finished finitePrefix Result has 458 conditions, 285 events. 64/285 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1280 event pairs, 63 based on Foata normal form. 8/226 useless extension candidates. Maximal degree in co-relation 395. Up to 157 conditions per place.
[2024-12-02 12:51:40,711 INFO L140 encePairwiseOnDemand]: 91/107 looper letters, 26 selfloop transitions, 8 changer transitions 0/90 dead transitions.
[2024-12-02 12:51:40,711 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 90 transitions, 266 flow
[2024-12-02 12:51:40,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 12:51:40,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-12-02 12:51:40,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 237 transitions.
[2024-12-02 12:51:40,713 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7383177570093458
[2024-12-02 12:51:40,714 INFO L175 Difference]: Start difference. First operand has 102 places, 98 transitions, 214 flow. Second operand 3 states and 237 transitions.
[2024-12-02 12:51:40,714 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 90 transitions, 266 flow
[2024-12-02 12:51:40,714 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 90 transitions, 250 flow, removed 0 selfloop flow, removed 2 redundant places.
[2024-12-02 12:51:40,716 INFO L231 Difference]: Finished difference. Result has 94 places, 90 transitions, 198 flow
[2024-12-02 12:51:40,716 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=198, PETRI_PLACES=94, PETRI_TRANSITIONS=90}
[2024-12-02 12:51:40,717 INFO L279 CegarLoopForPetriNet]: 109 programPoint places, -15 predicate places.
[2024-12-02 12:51:40,717 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 90 transitions, 198 flow
[2024-12-02 12:51:40,717 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 12:51:40,717 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 12:51:40,717 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1]
[2024-12-02 12:51:40,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-12-02 12:51:40,717 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] ===
[2024-12-02 12:51:40,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:51:40,718 INFO L85 PathProgramCache]: Analyzing trace with hash 635910758, now seen corresponding path program 1 times
[2024-12-02 12:51:40,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 12:51:40,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406536031]
[2024-12-02 12:51:40,718 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:51:40,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 12:51:40,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:51:40,908 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 12:51:40,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 12:51:40,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406536031]
[2024-12-02 12:51:40,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406536031] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 12:51:40,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 12:51:40,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 12:51:40,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381149296]
[2024-12-02 12:51:40,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 12:51:40,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-12-02 12:51:40,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 12:51:40,909 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-12-02 12:51:40,909 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30
[2024-12-02 12:51:41,154 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 107
[2024-12-02 12:51:41,155 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 90 transitions, 198 flow. Second operand has 6 states, 6 states have (on average 62.833333333333336) internal successors, (377), 6 states have internal predecessors, (377), 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 12:51:41,155 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-02 12:51:41,155 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 107
[2024-12-02 12:51:41,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-02 12:51:41,299 INFO L124 PetriNetUnfolderBase]: 73/305 cut-off events.
[2024-12-02 12:51:41,299 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES.
[2024-12-02 12:51:41,299 INFO L83 FinitePrefix]: Finished finitePrefix Result has 501 conditions, 305 events. 73/305 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1383 event pairs, 72 based on Foata normal form. 1/245 useless extension candidates. Maximal degree in co-relation 437. Up to 183 conditions per place.
[2024-12-02 12:51:41,301 INFO L140 encePairwiseOnDemand]: 100/107 looper letters, 38 selfloop transitions, 1 changer transitions 0/84 dead transitions.
[2024-12-02 12:51:41,301 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 84 transitions, 264 flow
[2024-12-02 12:51:41,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 12:51:41,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-12-02 12:51:41,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 231 transitions.
[2024-12-02 12:51:41,304 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.719626168224299
[2024-12-02 12:51:41,304 INFO L175 Difference]: Start difference. First operand has 94 places, 90 transitions, 198 flow. Second operand 3 states and 231 transitions.
[2024-12-02 12:51:41,304 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 84 transitions, 264 flow
[2024-12-02 12:51:41,305 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 84 transitions, 248 flow, removed 0 selfloop flow, removed 2 redundant places.
[2024-12-02 12:51:41,306 INFO L231 Difference]: Finished difference. Result has 88 places, 84 transitions, 172 flow
[2024-12-02 12:51:41,306 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=172, PETRI_PLACES=88, PETRI_TRANSITIONS=84}
[2024-12-02 12:51:41,307 INFO L279 CegarLoopForPetriNet]: 109 programPoint places, -21 predicate places.
[2024-12-02 12:51:41,307 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 84 transitions, 172 flow
[2024-12-02 12:51:41,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 62.833333333333336) internal successors, (377), 6 states have internal predecessors, (377), 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 12:51:41,307 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 12:51:41,307 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1]
[2024-12-02 12:51:41,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-12-02 12:51:41,308 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] ===
[2024-12-02 12:51:41,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:51:41,308 INFO L85 PathProgramCache]: Analyzing trace with hash 635910759, now seen corresponding path program 1 times
[2024-12-02 12:51:41,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 12:51:41,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370148689]
[2024-12-02 12:51:41,308 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:51:41,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 12:51:41,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:51:41,535 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 12:51:41,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 12:51:41,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370148689]
[2024-12-02 12:51:41,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370148689] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 12:51:41,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 12:51:41,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 12:51:41,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909483300]
[2024-12-02 12:51:41,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 12:51:41,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 12:51:41,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 12:51:41,536 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 12:51:41,537 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-12-02 12:51:41,763 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 107
[2024-12-02 12:51:41,764 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 84 transitions, 172 flow. Second operand has 5 states, 5 states have (on average 57.8) internal successors, (289), 5 states have internal predecessors, (289), 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 12:51:41,764 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-02 12:51:41,764 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 107
[2024-12-02 12:51:41,764 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-02 12:51:41,927 INFO L124 PetriNetUnfolderBase]: 64/291 cut-off events.
[2024-12-02 12:51:41,927 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-12-02 12:51:41,928 INFO L83 FinitePrefix]: Finished finitePrefix Result has 466 conditions, 291 events. 64/291 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1210 event pairs, 63 based on Foata normal form. 0/228 useless extension candidates. Maximal degree in co-relation 460. Up to 163 conditions per place.
[2024-12-02 12:51:41,929 INFO L140 encePairwiseOnDemand]: 98/107 looper letters, 37 selfloop transitions, 6 changer transitions 0/91 dead transitions.
[2024-12-02 12:51:41,929 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 91 transitions, 272 flow
[2024-12-02 12:51:41,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-12-02 12:51:41,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-12-02 12:51:41,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 274 transitions.
[2024-12-02 12:51:41,931 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6401869158878505
[2024-12-02 12:51:41,931 INFO L175 Difference]: Start difference. First operand has 88 places, 84 transitions, 172 flow. Second operand 4 states and 274 transitions.
[2024-12-02 12:51:41,931 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 91 transitions, 272 flow
[2024-12-02 12:51:41,931 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 91 transitions, 271 flow, removed 0 selfloop flow, removed 1 redundant places.
[2024-12-02 12:51:41,935 INFO L231 Difference]: Finished difference. Result has 92 places, 89 transitions, 219 flow
[2024-12-02 12:51:41,935 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=171, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=219, PETRI_PLACES=92, PETRI_TRANSITIONS=89}
[2024-12-02 12:51:41,935 INFO L279 CegarLoopForPetriNet]: 109 programPoint places, -17 predicate places.
[2024-12-02 12:51:41,936 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 89 transitions, 219 flow
[2024-12-02 12:51:41,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 57.8) internal successors, (289), 5 states have internal predecessors, (289), 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 12:51:41,936 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 12:51:41,936 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 12:51:41,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-12-02 12:51:41,936 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] ===
[2024-12-02 12:51:41,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:51:41,937 INFO L85 PathProgramCache]: Analyzing trace with hash 312232132, now seen corresponding path program 1 times
[2024-12-02 12:51:41,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 12:51:41,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687507395]
[2024-12-02 12:51:41,937 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:51:41,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 12:51:41,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:51:42,208 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 12:51:42,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 12:51:42,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687507395]
[2024-12-02 12:51:42,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687507395] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 12:51:42,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 12:51:42,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-12-02 12:51:42,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55998850]
[2024-12-02 12:51:42,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 12:51:42,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-12-02 12:51:42,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 12:51:42,209 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-12-02 12:51:42,209 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2024-12-02 12:51:42,563 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 107
[2024-12-02 12:51:42,563 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 89 transitions, 219 flow. Second operand has 7 states, 7 states have (on average 53.285714285714285) internal successors, (373), 7 states have internal predecessors, (373), 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 12:51:42,563 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-02 12:51:42,563 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 107
[2024-12-02 12:51:42,564 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-02 12:51:42,761 INFO L124 PetriNetUnfolderBase]: 64/285 cut-off events.
[2024-12-02 12:51:42,761 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES.
[2024-12-02 12:51:42,762 INFO L83 FinitePrefix]: Finished finitePrefix Result has 491 conditions, 285 events. 64/285 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1173 event pairs, 63 based on Foata normal form. 0/234 useless extension candidates. Maximal degree in co-relation 482. Up to 154 conditions per place.
[2024-12-02 12:51:42,763 INFO L140 encePairwiseOnDemand]: 90/107 looper letters, 30 selfloop transitions, 18 changer transitions 0/85 dead transitions.
[2024-12-02 12:51:42,763 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 85 transitions, 307 flow
[2024-12-02 12:51:42,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-12-02 12:51:42,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states.
[2024-12-02 12:51:42,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 463 transitions.
[2024-12-02 12:51:42,765 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5408878504672897
[2024-12-02 12:51:42,765 INFO L175 Difference]: Start difference. First operand has 92 places, 89 transitions, 219 flow. Second operand 8 states and 463 transitions.
[2024-12-02 12:51:42,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 85 transitions, 307 flow
[2024-12-02 12:51:42,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 85 transitions, 305 flow, removed 0 selfloop flow, removed 1 redundant places.
[2024-12-02 12:51:42,768 INFO L231 Difference]: Finished difference. Result has 94 places, 85 transitions, 245 flow
[2024-12-02 12:51:42,768 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=209, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=245, PETRI_PLACES=94, PETRI_TRANSITIONS=85}
[2024-12-02 12:51:42,769 INFO L279 CegarLoopForPetriNet]: 109 programPoint places, -15 predicate places.
[2024-12-02 12:51:42,769 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 85 transitions, 245 flow
[2024-12-02 12:51:42,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 53.285714285714285) internal successors, (373), 7 states have internal predecessors, (373), 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 12:51:42,769 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 12:51:42,769 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 12:51:42,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-12-02 12:51:42,769 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] ===
[2024-12-02 12:51:42,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:51:42,770 INFO L85 PathProgramCache]: Analyzing trace with hash 312232133, now seen corresponding path program 1 times
[2024-12-02 12:51:42,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 12:51:42,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008379558]
[2024-12-02 12:51:42,770 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:51:42,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 12:51:42,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:51:43,150 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 12:51:43,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 12:51:43,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008379558]
[2024-12-02 12:51:43,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008379558] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 12:51:43,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 12:51:43,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-12-02 12:51:43,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437303909]
[2024-12-02 12:51:43,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 12:51:43,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-12-02 12:51:43,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 12:51:43,151 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-12-02 12:51:43,151 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2024-12-02 12:51:43,679 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 107
[2024-12-02 12:51:43,679 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 85 transitions, 245 flow. Second operand has 7 states, 7 states have (on average 48.285714285714285) internal successors, (338), 7 states have internal predecessors, (338), 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 12:51:43,679 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-02 12:51:43,679 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 107
[2024-12-02 12:51:43,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-02 12:51:43,879 INFO L124 PetriNetUnfolderBase]: 64/281 cut-off events.
[2024-12-02 12:51:43,880 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES.
[2024-12-02 12:51:43,880 INFO L83 FinitePrefix]: Finished finitePrefix Result has 503 conditions, 281 events. 64/281 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1180 event pairs, 63 based on Foata normal form. 2/234 useless extension candidates. Maximal degree in co-relation 494. Up to 158 conditions per place.
[2024-12-02 12:51:43,881 INFO L140 encePairwiseOnDemand]: 95/107 looper letters, 32 selfloop transitions, 15 changer transitions 0/83 dead transitions.
[2024-12-02 12:51:43,881 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 83 transitions, 335 flow
[2024-12-02 12:51:43,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-12-02 12:51:43,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2024-12-02 12:51:43,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 373 transitions.
[2024-12-02 12:51:43,883 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4979973297730307
[2024-12-02 12:51:43,883 INFO L175 Difference]: Start difference. First operand has 94 places, 85 transitions, 245 flow. Second operand 7 states and 373 transitions.
[2024-12-02 12:51:43,883 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 83 transitions, 335 flow
[2024-12-02 12:51:43,884 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 83 transitions, 299 flow, removed 0 selfloop flow, removed 7 redundant places.
[2024-12-02 12:51:43,885 INFO L231 Difference]: Finished difference. Result has 91 places, 83 transitions, 235 flow
[2024-12-02 12:51:43,885 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=205, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=235, PETRI_PLACES=91, PETRI_TRANSITIONS=83}
[2024-12-02 12:51:43,886 INFO L279 CegarLoopForPetriNet]: 109 programPoint places, -18 predicate places.
[2024-12-02 12:51:43,886 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 83 transitions, 235 flow
[2024-12-02 12:51:43,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 48.285714285714285) internal successors, (338), 7 states have internal predecessors, (338), 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 12:51:43,886 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 12:51:43,886 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 12:51:43,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-12-02 12:51:43,887 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] ===
[2024-12-02 12:51:43,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:51:43,887 INFO L85 PathProgramCache]: Analyzing trace with hash -592609288, now seen corresponding path program 1 times
[2024-12-02 12:51:43,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 12:51:43,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899396389]
[2024-12-02 12:51:43,887 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:51:43,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 12:51:43,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:51:43,986 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 12:51:43,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 12:51:43,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899396389]
[2024-12-02 12:51:43,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899396389] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 12:51:43,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 12:51:43,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 12:51:43,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728085673]
[2024-12-02 12:51:43,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 12:51:43,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 12:51:43,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 12:51:43,987 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 12:51:43,987 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-12-02 12:51:44,209 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 107
[2024-12-02 12:51:44,209 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 83 transitions, 235 flow. Second operand has 5 states, 5 states have (on average 60.0) internal successors, (300), 5 states have internal predecessors, (300), 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 12:51:44,209 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-02 12:51:44,209 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 107
[2024-12-02 12:51:44,209 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-02 12:51:44,338 INFO L124 PetriNetUnfolderBase]: 64/279 cut-off events.
[2024-12-02 12:51:44,339 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES.
[2024-12-02 12:51:44,339 INFO L83 FinitePrefix]: Finished finitePrefix Result has 496 conditions, 279 events. 64/279 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1168 event pairs, 63 based on Foata normal form. 2/231 useless extension candidates. Maximal degree in co-relation 487. Up to 158 conditions per place.
[2024-12-02 12:51:44,340 INFO L140 encePairwiseOnDemand]: 96/107 looper letters, 30 selfloop transitions, 15 changer transitions 0/82 dead transitions.
[2024-12-02 12:51:44,340 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 82 transitions, 323 flow
[2024-12-02 12:51:44,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-12-02 12:51:44,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2024-12-02 12:51:44,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 331 transitions.
[2024-12-02 12:51:44,343 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6186915887850467
[2024-12-02 12:51:44,343 INFO L175 Difference]: Start difference. First operand has 91 places, 83 transitions, 235 flow. Second operand 5 states and 331 transitions.
[2024-12-02 12:51:44,343 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 82 transitions, 323 flow
[2024-12-02 12:51:44,344 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 82 transitions, 293 flow, removed 0 selfloop flow, removed 6 redundant places.
[2024-12-02 12:51:44,345 INFO L231 Difference]: Finished difference. Result has 88 places, 82 transitions, 233 flow
[2024-12-02 12:51:44,345 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=203, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=233, PETRI_PLACES=88, PETRI_TRANSITIONS=82}
[2024-12-02 12:51:44,346 INFO L279 CegarLoopForPetriNet]: 109 programPoint places, -21 predicate places.
[2024-12-02 12:51:44,346 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 82 transitions, 233 flow
[2024-12-02 12:51:44,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 60.0) internal successors, (300), 5 states have internal predecessors, (300), 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 12:51:44,346 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 12:51:44,347 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 12:51:44,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-12-02 12:51:44,347 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] ===
[2024-12-02 12:51:44,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:51:44,347 INFO L85 PathProgramCache]: Analyzing trace with hash -592609287, now seen corresponding path program 1 times
[2024-12-02 12:51:44,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 12:51:44,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750133254]
[2024-12-02 12:51:44,348 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:51:44,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 12:51:44,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:51:44,508 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 12:51:44,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 12:51:44,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750133254]
[2024-12-02 12:51:44,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750133254] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 12:51:44,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 12:51:44,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 12:51:44,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156993635]
[2024-12-02 12:51:44,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 12:51:44,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 12:51:44,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 12:51:44,509 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 12:51:44,509 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-12-02 12:51:44,706 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 107
[2024-12-02 12:51:44,707 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 82 transitions, 233 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 12:51:44,707 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-02 12:51:44,707 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 107
[2024-12-02 12:51:44,707 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-02 12:51:44,852 INFO L124 PetriNetUnfolderBase]: 64/277 cut-off events.
[2024-12-02 12:51:44,852 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES.
[2024-12-02 12:51:44,853 INFO L83 FinitePrefix]: Finished finitePrefix Result has 488 conditions, 277 events. 64/277 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1162 event pairs, 63 based on Foata normal form. 2/229 useless extension candidates. Maximal degree in co-relation 479. Up to 158 conditions per place.
[2024-12-02 12:51:44,854 INFO L140 encePairwiseOnDemand]: 96/107 looper letters, 26 selfloop transitions, 15 changer transitions 0/81 dead transitions.
[2024-12-02 12:51:44,854 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 81 transitions, 313 flow
[2024-12-02 12:51:44,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-12-02 12:51:44,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2024-12-02 12:51:44,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 347 transitions.
[2024-12-02 12:51:44,856 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6485981308411215
[2024-12-02 12:51:44,856 INFO L175 Difference]: Start difference. First operand has 88 places, 82 transitions, 233 flow. Second operand 5 states and 347 transitions.
[2024-12-02 12:51:44,856 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 81 transitions, 313 flow
[2024-12-02 12:51:44,857 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 81 transitions, 283 flow, removed 0 selfloop flow, removed 4 redundant places.
[2024-12-02 12:51:44,858 INFO L231 Difference]: Finished difference. Result has 87 places, 81 transitions, 231 flow
[2024-12-02 12:51:44,858 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=201, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=231, PETRI_PLACES=87, PETRI_TRANSITIONS=81}
[2024-12-02 12:51:44,859 INFO L279 CegarLoopForPetriNet]: 109 programPoint places, -22 predicate places.
[2024-12-02 12:51:44,859 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 81 transitions, 231 flow
[2024-12-02 12:51:44,859 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 12:51:44,859 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 12:51:44,859 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 12:51:44,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-12-02 12:51:44,860 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] ===
[2024-12-02 12:51:44,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:51:44,860 INFO L85 PathProgramCache]: Analyzing trace with hash -891877433, now seen corresponding path program 1 times
[2024-12-02 12:51:44,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 12:51:44,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694123937]
[2024-12-02 12:51:44,860 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:51:44,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 12:51:44,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:51:45,257 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 12:51:45,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 12:51:45,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694123937]
[2024-12-02 12:51:45,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694123937] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 12:51:45,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [464014102]
[2024-12-02 12:51:45,258 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:51:45,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:51:45,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f7449ea-fbb7-4593-b4ae-4d39ba14156c/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 12:51:45,261 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f7449ea-fbb7-4593-b4ae-4d39ba14156c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 12:51:45,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f7449ea-fbb7-4593-b4ae-4d39ba14156c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-12-02 12:51:45,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:51:45,409 INFO L256 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 33 conjuncts are in the unsatisfiable core
[2024-12-02 12:51:45,413 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 12:51:45,484 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:51:45,489 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9
[2024-12-02 12:51:45,554 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size
[2024-12-02 12:51:45,554 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 13
[2024-12-02 12:51:45,581 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2024-12-02 12:51:45,582 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11
[2024-12-02 12:51:45,726 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:51:45,727 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9
[2024-12-02 12:51:45,765 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 12:51:45,765 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 12:51:46,019 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-12-02 12:51:46,019 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 61
[2024-12-02 12:51:46,094 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size
[2024-12-02 12:51:46,094 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 12
[2024-12-02 12:51:46,169 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 12:51:46,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [464014102] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 12:51:46,169 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-12-02 12:51:46,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 4] total 16
[2024-12-02 12:51:46,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63147713]
[2024-12-02 12:51:46,169 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-12-02 12:51:46,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states
[2024-12-02 12:51:46,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 12:51:46,170 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants.
[2024-12-02 12:51:46,171 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306
[2024-12-02 12:51:48,534 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 107
[2024-12-02 12:51:48,535 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 81 transitions, 231 flow. Second operand has 18 states, 18 states have (on average 57.833333333333336) internal successors, (1041), 18 states have internal predecessors, (1041), 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 12:51:48,535 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-02 12:51:48,535 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 107
[2024-12-02 12:51:48,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-02 12:51:49,064 INFO L124 PetriNetUnfolderBase]: 75/332 cut-off events.
[2024-12-02 12:51:49,064 INFO L125 PetriNetUnfolderBase]: For 49/49 co-relation queries the response was YES.
[2024-12-02 12:51:49,065 INFO L83 FinitePrefix]: Finished finitePrefix Result has 611 conditions, 332 events. 75/332 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1451 event pairs, 72 based on Foata normal form. 6/281 useless extension candidates. Maximal degree in co-relation 602. Up to 178 conditions per place.
[2024-12-02 12:51:49,066 INFO L140 encePairwiseOnDemand]: 98/107 looper letters, 46 selfloop transitions, 16 changer transitions 0/101 dead transitions.
[2024-12-02 12:51:49,066 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 101 transitions, 459 flow
[2024-12-02 12:51:49,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-12-02 12:51:49,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states.
[2024-12-02 12:51:49,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 573 transitions.
[2024-12-02 12:51:49,068 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5950155763239875
[2024-12-02 12:51:49,069 INFO L175 Difference]: Start difference. First operand has 87 places, 81 transitions, 231 flow. Second operand 9 states and 573 transitions.
[2024-12-02 12:51:49,069 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 101 transitions, 459 flow
[2024-12-02 12:51:49,070 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 101 transitions, 393 flow, removed 0 selfloop flow, removed 4 redundant places.
[2024-12-02 12:51:49,071 INFO L231 Difference]: Finished difference. Result has 95 places, 89 transitions, 305 flow
[2024-12-02 12:51:49,072 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=197, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=305, PETRI_PLACES=95, PETRI_TRANSITIONS=89}
[2024-12-02 12:51:49,072 INFO L279 CegarLoopForPetriNet]: 109 programPoint places, -14 predicate places.
[2024-12-02 12:51:49,072 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 89 transitions, 305 flow
[2024-12-02 12:51:49,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 57.833333333333336) internal successors, (1041), 18 states have internal predecessors, (1041), 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 12:51:49,073 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 12:51:49,073 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1]
[2024-12-02 12:51:49,083 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f7449ea-fbb7-4593-b4ae-4d39ba14156c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-12-02 12:51:49,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f7449ea-fbb7-4593-b4ae-4d39ba14156c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:51:49,274 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] ===
[2024-12-02 12:51:49,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:51:49,274 INFO L85 PathProgramCache]: Analyzing trace with hash 1240293804, now seen corresponding path program 1 times
[2024-12-02 12:51:49,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 12:51:49,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938089676]
[2024-12-02 12:51:49,274 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:51:49,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 12:51:49,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:51:49,443 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 12:51:49,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 12:51:49,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938089676]
[2024-12-02 12:51:49,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938089676] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 12:51:49,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [234460092]
[2024-12-02 12:51:49,443 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:51:49,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:51:49,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f7449ea-fbb7-4593-b4ae-4d39ba14156c/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 12:51:49,445 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f7449ea-fbb7-4593-b4ae-4d39ba14156c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 12:51:49,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f7449ea-fbb7-4593-b4ae-4d39ba14156c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-12-02 12:51:49,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:51:49,636 INFO L256 TraceCheckSpWp]: Trace formula consists of 626 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-12-02 12:51:49,638 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 12:51:49,676 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 12:51:49,676 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 12:51:49,720 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 12:51:49,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [234460092] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 12:51:49,721 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-12-02 12:51:49,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8
[2024-12-02 12:51:49,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313704815]
[2024-12-02 12:51:49,721 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-12-02 12:51:49,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-12-02 12:51:49,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 12:51:49,722 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-12-02 12:51:49,722 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72
[2024-12-02 12:51:49,737 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 107
[2024-12-02 12:51:49,738 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 89 transitions, 305 flow. Second operand has 9 states, 9 states have (on average 77.55555555555556) internal successors, (698), 9 states have internal predecessors, (698), 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 12:51:49,738 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-02 12:51:49,738 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 107
[2024-12-02 12:51:49,738 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-02 12:51:49,961 INFO L124 PetriNetUnfolderBase]: 64/318 cut-off events.
[2024-12-02 12:51:49,962 INFO L125 PetriNetUnfolderBase]: For 108/108 co-relation queries the response was YES.
[2024-12-02 12:51:49,962 INFO L83 FinitePrefix]: Finished finitePrefix Result has 618 conditions, 318 events. 64/318 cut-off events. For 108/108 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1132 event pairs, 63 based on Foata normal form. 4/272 useless extension candidates. Maximal degree in co-relation 603. Up to 154 conditions per place.
[2024-12-02 12:51:49,963 INFO L140 encePairwiseOnDemand]: 103/107 looper letters, 62 selfloop transitions, 8 changer transitions 0/111 dead transitions.
[2024-12-02 12:51:49,963 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 111 transitions, 541 flow
[2024-12-02 12:51:49,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-12-02 12:51:49,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states.
[2024-12-02 12:51:49,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 658 transitions.
[2024-12-02 12:51:49,966 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7686915887850467
[2024-12-02 12:51:49,966 INFO L175 Difference]: Start difference. First operand has 95 places, 89 transitions, 305 flow. Second operand 8 states and 658 transitions.
[2024-12-02 12:51:49,966 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 111 transitions, 541 flow
[2024-12-02 12:51:49,968 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 111 transitions, 521 flow, removed 5 selfloop flow, removed 2 redundant places.
[2024-12-02 12:51:49,969 INFO L231 Difference]: Finished difference. Result has 103 places, 90 transitions, 321 flow
[2024-12-02 12:51:49,969 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=269, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=321, PETRI_PLACES=103, PETRI_TRANSITIONS=90}
[2024-12-02 12:51:49,970 INFO L279 CegarLoopForPetriNet]: 109 programPoint places, -6 predicate places.
[2024-12-02 12:51:49,970 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 90 transitions, 321 flow
[2024-12-02 12:51:49,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 77.55555555555556) internal successors, (698), 9 states have internal predecessors, (698), 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 12:51:49,970 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 12:51:49,970 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 1, 1]
[2024-12-02 12:51:49,980 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f7449ea-fbb7-4593-b4ae-4d39ba14156c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-12-02 12:51:50,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f7449ea-fbb7-4593-b4ae-4d39ba14156c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9
[2024-12-02 12:51:50,171 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] ===
[2024-12-02 12:51:50,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:51:50,171 INFO L85 PathProgramCache]: Analyzing trace with hash 799481831, now seen corresponding path program 2 times
[2024-12-02 12:51:50,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 12:51:50,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452388564]
[2024-12-02 12:51:50,172 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-12-02 12:51:50,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 12:51:50,307 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-12-02 12:51:50,307 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-12-02 12:51:51,849 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 4 proven. 76 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 12:51:51,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 12:51:51,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452388564]
[2024-12-02 12:51:51,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452388564] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 12:51:51,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [446118836]
[2024-12-02 12:51:51,850 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-12-02 12:51:51,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:51:51,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f7449ea-fbb7-4593-b4ae-4d39ba14156c/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 12:51:51,852 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f7449ea-fbb7-4593-b4ae-4d39ba14156c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 12:51:51,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f7449ea-fbb7-4593-b4ae-4d39ba14156c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-12-02 12:51:52,204 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-12-02 12:51:52,204 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-12-02 12:51:52,210 INFO L256 TraceCheckSpWp]: Trace formula consists of 1022 conjuncts, 113 conjuncts are in the unsatisfiable core
[2024-12-02 12:51:52,217 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 12:51:52,265 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:51:52,266 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9
[2024-12-02 12:51:52,335 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size
[2024-12-02 12:51:52,335 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 13
[2024-12-02 12:51:52,348 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2024-12-02 12:51:52,348 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11
[2024-12-02 12:51:52,518 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size
[2024-12-02 12:51:52,518 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 13
[2024-12-02 12:51:52,535 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2024-12-02 12:51:52,535 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11
[2024-12-02 12:51:52,630 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size
[2024-12-02 12:51:52,630 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 13
[2024-12-02 12:51:52,644 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2024-12-02 12:51:52,645 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11
[2024-12-02 12:51:52,651 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1
[2024-12-02 12:51:52,859 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size
[2024-12-02 12:51:52,859 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 13
[2024-12-02 12:51:52,871 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2024-12-02 12:51:52,871 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11
[2024-12-02 12:51:53,006 INFO L349 Elim1Store]: treesize reduction 25, result has 37.5 percent of original size
[2024-12-02 12:51:53,006 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 20
[2024-12-02 12:51:53,045 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2024-12-02 12:51:53,045 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11
[2024-12-02 12:51:53,055 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9
[2024-12-02 12:51:53,226 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-12-02 12:51:53,227 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 17
[2024-12-02 12:51:53,342 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:51:53,343 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9
[2024-12-02 12:51:53,404 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2024-12-02 12:51:53,404 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11
[2024-12-02 12:51:53,412 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9
[2024-12-02 12:51:53,618 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:51:53,619 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9
[2024-12-02 12:51:53,658 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 4 proven. 76 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 12:51:53,658 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 12:51:53,848 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size
[2024-12-02 12:51:53,849 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 12
[2024-12-02 12:51:53,952 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size
[2024-12-02 12:51:53,953 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 12
[2024-12-02 12:51:54,154 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size
[2024-12-02 12:51:54,154 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 12
[2024-12-02 12:51:54,251 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size
[2024-12-02 12:51:54,252 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 12
[2024-12-02 12:51:54,455 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size
[2024-12-02 12:51:54,455 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 12
[2024-12-02 12:51:54,566 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size
[2024-12-02 12:51:54,566 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 12
[2024-12-02 12:51:54,789 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size
[2024-12-02 12:51:54,789 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 12
[2024-12-02 12:51:54,908 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size
[2024-12-02 12:51:54,908 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 12
[2024-12-02 12:51:55,040 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 4 proven. 76 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 12:51:55,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [446118836] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 12:51:55,040 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-12-02 12:51:55,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 23, 15] total 55
[2024-12-02 12:51:55,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916674401]
[2024-12-02 12:51:55,041 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-12-02 12:51:55,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 57 states
[2024-12-02 12:51:55,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 12:51:55,042 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants.
[2024-12-02 12:51:55,044 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=641, Invalid=2551, Unknown=0, NotChecked=0, Total=3192
[2024-12-02 12:52:09,081 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 107
[2024-12-02 12:52:09,083 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 90 transitions, 321 flow. Second operand has 57 states, 57 states have (on average 57.68421052631579) internal successors, (3288), 57 states have internal predecessors, (3288), 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 12:52:09,083 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-02 12:52:09,083 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 107
[2024-12-02 12:52:09,083 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-02 12:52:11,054 INFO L124 PetriNetUnfolderBase]: 77/394 cut-off events.
[2024-12-02 12:52:11,054 INFO L125 PetriNetUnfolderBase]: For 263/263 co-relation queries the response was YES.
[2024-12-02 12:52:11,054 INFO L83 FinitePrefix]: Finished finitePrefix Result has 840 conditions, 394 events. 77/394 cut-off events. For 263/263 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1533 event pairs, 72 based on Foata normal form. 6/346 useless extension candidates. Maximal degree in co-relation 821. Up to 180 conditions per place.
[2024-12-02 12:52:11,055 INFO L140 encePairwiseOnDemand]: 99/107 looper letters, 70 selfloop transitions, 36 changer transitions 0/145 dead transitions.
[2024-12-02 12:52:11,056 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 145 transitions, 867 flow
[2024-12-02 12:52:11,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states.
[2024-12-02 12:52:11,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states.
[2024-12-02 12:52:11,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 1568 transitions.
[2024-12-02 12:52:11,059 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5636232925952552
[2024-12-02 12:52:11,059 INFO L175 Difference]: Start difference. First operand has 103 places, 90 transitions, 321 flow. Second operand 26 states and 1568 transitions.
[2024-12-02 12:52:11,059 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 145 transitions, 867 flow
[2024-12-02 12:52:11,061 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 145 transitions, 851 flow, removed 5 selfloop flow, removed 3 redundant places.
[2024-12-02 12:52:11,062 INFO L231 Difference]: Finished difference. Result has 136 places, 110 transitions, 629 flow
[2024-12-02 12:52:11,062 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=313, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=629, PETRI_PLACES=136, PETRI_TRANSITIONS=110}
[2024-12-02 12:52:11,062 INFO L279 CegarLoopForPetriNet]: 109 programPoint places, 27 predicate places.
[2024-12-02 12:52:11,063 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 110 transitions, 629 flow
[2024-12-02 12:52:11,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 57 states have (on average 57.68421052631579) internal successors, (3288), 57 states have internal predecessors, (3288), 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 12:52:11,063 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 12:52:11,063 INFO L206 CegarLoopForPetriNet]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1]
[2024-12-02 12:52:11,071 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f7449ea-fbb7-4593-b4ae-4d39ba14156c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-12-02 12:52:11,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f7449ea-fbb7-4593-b4ae-4d39ba14156c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10
[2024-12-02 12:52:11,264 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] ===
[2024-12-02 12:52:11,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:52:11,264 INFO L85 PathProgramCache]: Analyzing trace with hash 507741996, now seen corresponding path program 2 times
[2024-12-02 12:52:11,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 12:52:11,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357208218]
[2024-12-02 12:52:11,265 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-12-02 12:52:11,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 12:52:11,319 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-12-02 12:52:11,319 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-12-02 12:52:11,644 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked.
[2024-12-02 12:52:11,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 12:52:11,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357208218]
[2024-12-02 12:52:11,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357208218] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 12:52:11,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 12:52:11,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 12:52:11,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304634928]
[2024-12-02 12:52:11,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 12:52:11,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-12-02 12:52:11,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 12:52:11,645 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-12-02 12:52:11,645 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-12-02 12:52:11,962 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 107
[2024-12-02 12:52:11,962 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 110 transitions, 629 flow. Second operand has 6 states, 6 states have (on average 66.33333333333333) internal successors, (398), 6 states have internal predecessors, (398), 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 12:52:11,962 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-02 12:52:11,962 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 107
[2024-12-02 12:52:11,962 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-02 12:52:12,165 INFO L124 PetriNetUnfolderBase]: 116/562 cut-off events.
[2024-12-02 12:52:12,165 INFO L125 PetriNetUnfolderBase]: For 582/582 co-relation queries the response was YES.
[2024-12-02 12:52:12,166 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1201 conditions, 562 events. 116/562 cut-off events. For 582/582 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2928 event pairs, 36 based on Foata normal form. 0/455 useless extension candidates. Maximal degree in co-relation 1170. Up to 161 conditions per place.
[2024-12-02 12:52:12,167 INFO L140 encePairwiseOnDemand]: 98/107 looper letters, 59 selfloop transitions, 26 changer transitions 0/123 dead transitions.
[2024-12-02 12:52:12,167 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 123 transitions, 825 flow
[2024-12-02 12:52:12,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-12-02 12:52:12,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2024-12-02 12:52:12,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 438 transitions.
[2024-12-02 12:52:12,168 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6822429906542056
[2024-12-02 12:52:12,168 INFO L175 Difference]: Start difference. First operand has 136 places, 110 transitions, 629 flow. Second operand 6 states and 438 transitions.
[2024-12-02 12:52:12,168 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 123 transitions, 825 flow
[2024-12-02 12:52:12,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 123 transitions, 701 flow, removed 39 selfloop flow, removed 11 redundant places.
[2024-12-02 12:52:12,173 INFO L231 Difference]: Finished difference. Result has 130 places, 111 transitions, 572 flow
[2024-12-02 12:52:12,173 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=503, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=572, PETRI_PLACES=130, PETRI_TRANSITIONS=111}
[2024-12-02 12:52:12,174 INFO L279 CegarLoopForPetriNet]: 109 programPoint places, 21 predicate places.
[2024-12-02 12:52:12,174 INFO L471 AbstractCegarLoop]: Abstraction has has 130 places, 111 transitions, 572 flow
[2024-12-02 12:52:12,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 66.33333333333333) internal successors, (398), 6 states have internal predecessors, (398), 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 12:52:12,174 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 12:52:12,174 INFO L206 CegarLoopForPetriNet]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1]
[2024-12-02 12:52:12,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2024-12-02 12:52:12,174 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] ===
[2024-12-02 12:52:12,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:52:12,175 INFO L85 PathProgramCache]: Analyzing trace with hash -1439866569, now seen corresponding path program 1 times
[2024-12-02 12:52:12,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 12:52:12,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98826883]
[2024-12-02 12:52:12,175 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:52:12,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 12:52:12,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:52:12,543 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 6 proven. 156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 12:52:12,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 12:52:12,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98826883]
[2024-12-02 12:52:12,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98826883] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 12:52:12,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2113376675]
[2024-12-02 12:52:12,543 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:52:12,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:52:12,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f7449ea-fbb7-4593-b4ae-4d39ba14156c/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 12:52:12,545 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f7449ea-fbb7-4593-b4ae-4d39ba14156c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 12:52:12,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f7449ea-fbb7-4593-b4ae-4d39ba14156c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-12-02 12:52:12,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:52:12,921 INFO L256 TraceCheckSpWp]: Trace formula consists of 1446 conjuncts, 8 conjuncts are in the unsatisfiable core
[2024-12-02 12:52:12,923 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 12:52:12,997 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 6 proven. 156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 12:52:12,997 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 12:52:13,099 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 6 proven. 156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 12:52:13,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2113376675] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 12:52:13,100 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-12-02 12:52:13,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 12
[2024-12-02 12:52:13,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23524256]
[2024-12-02 12:52:13,100 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-12-02 12:52:13,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2024-12-02 12:52:13,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 12:52:13,101 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2024-12-02 12:52:13,101 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156
[2024-12-02 12:52:13,123 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 107
[2024-12-02 12:52:13,124 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 111 transitions, 572 flow. Second operand has 13 states, 13 states have (on average 78.92307692307692) internal successors, (1026), 13 states have internal predecessors, (1026), 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 12:52:13,124 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-02 12:52:13,124 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 107
[2024-12-02 12:52:13,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-02 12:52:13,375 INFO L124 PetriNetUnfolderBase]: 95/481 cut-off events.
[2024-12-02 12:52:13,375 INFO L125 PetriNetUnfolderBase]: For 490/491 co-relation queries the response was YES.
[2024-12-02 12:52:13,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1061 conditions, 481 events. 95/481 cut-off events. For 490/491 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2038 event pairs, 87 based on Foata normal form. 4/410 useless extension candidates. Maximal degree in co-relation 1031. Up to 220 conditions per place.
[2024-12-02 12:52:13,378 INFO L140 encePairwiseOnDemand]: 103/107 looper letters, 89 selfloop transitions, 12 changer transitions 0/141 dead transitions.
[2024-12-02 12:52:13,378 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 141 transitions, 926 flow
[2024-12-02 12:52:13,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2024-12-02 12:52:13,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states.
[2024-12-02 12:52:13,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 978 transitions.
[2024-12-02 12:52:13,380 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7616822429906542
[2024-12-02 12:52:13,380 INFO L175 Difference]: Start difference. First operand has 130 places, 111 transitions, 572 flow. Second operand 12 states and 978 transitions.
[2024-12-02 12:52:13,380 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 141 transitions, 926 flow
[2024-12-02 12:52:13,385 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 141 transitions, 890 flow, removed 5 selfloop flow, removed 3 redundant places.
[2024-12-02 12:52:13,386 INFO L231 Difference]: Finished difference. Result has 139 places, 108 transitions, 516 flow
[2024-12-02 12:52:13,386 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=480, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=516, PETRI_PLACES=139, PETRI_TRANSITIONS=108}
[2024-12-02 12:52:13,387 INFO L279 CegarLoopForPetriNet]: 109 programPoint places, 30 predicate places.
[2024-12-02 12:52:13,387 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 108 transitions, 516 flow
[2024-12-02 12:52:13,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 78.92307692307692) internal successors, (1026), 13 states have internal predecessors, (1026), 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 12:52:13,387 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 12:52:13,387 INFO L206 CegarLoopForPetriNet]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 1, 1]
[2024-12-02 12:52:13,398 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f7449ea-fbb7-4593-b4ae-4d39ba14156c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2024-12-02 12:52:13,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f7449ea-fbb7-4593-b4ae-4d39ba14156c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12
[2024-12-02 12:52:13,588 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] ===
[2024-12-02 12:52:13,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:52:13,589 INFO L85 PathProgramCache]: Analyzing trace with hash -622434265, now seen corresponding path program 3 times
[2024-12-02 12:52:13,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 12:52:13,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122021599]
[2024-12-02 12:52:13,589 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-12-02 12:52:13,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 12:52:14,221 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s)
[2024-12-02 12:52:14,221 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-12-02 12:52:14,635 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 409 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 12:52:14,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 12:52:14,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122021599]
[2024-12-02 12:52:14,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122021599] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 12:52:14,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2133344156]
[2024-12-02 12:52:14,635 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-12-02 12:52:14,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:52:14,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f7449ea-fbb7-4593-b4ae-4d39ba14156c/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 12:52:14,637 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f7449ea-fbb7-4593-b4ae-4d39ba14156c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 12:52:14,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f7449ea-fbb7-4593-b4ae-4d39ba14156c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-12-02 13:00:48,968 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s)
[2024-12-02 13:00:48,968 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-12-02 13:00:49,035 INFO L256 TraceCheckSpWp]: Trace formula consists of 2216 conjuncts, 12 conjuncts are in the unsatisfiable core
[2024-12-02 13:00:49,040 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 13:00:49,127 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 500 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 13:00:49,127 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 13:00:49,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2133344156] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 13:00:49,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-12-02 13:00:49,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [12] total 13
[2024-12-02 13:00:49,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375392584]
[2024-12-02 13:00:49,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 13:00:49,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2024-12-02 13:00:49,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 13:00:49,129 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2024-12-02 13:00:49,129 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=101, Unknown=0, NotChecked=0, Total=182
[2024-12-02 13:00:49,147 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 107
[2024-12-02 13:00:49,148 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 108 transitions, 516 flow. Second operand has 13 states, 13 states have (on average 78.61538461538461) internal successors, (1022), 13 states have internal predecessors, (1022), 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 13:00:49,148 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-02 13:00:49,148 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 107
[2024-12-02 13:00:49,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-02 13:00:49,450 INFO L124 PetriNetUnfolderBase]: 94/476 cut-off events.
[2024-12-02 13:00:49,450 INFO L125 PetriNetUnfolderBase]: For 389/390 co-relation queries the response was YES.
[2024-12-02 13:00:49,451 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1016 conditions, 476 events. 94/476 cut-off events. For 389/390 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2030 event pairs, 87 based on Foata normal form. 1/402 useless extension candidates. Maximal degree in co-relation 985. Up to 219 conditions per place.
[2024-12-02 13:00:49,452 INFO L140 encePairwiseOnDemand]: 103/107 looper letters, 87 selfloop transitions, 12 changer transitions 0/138 dead transitions.
[2024-12-02 13:00:49,452 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 138 transitions, 877 flow
[2024-12-02 13:00:49,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2024-12-02 13:00:49,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states.
[2024-12-02 13:00:49,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1047 transitions.
[2024-12-02 13:00:49,455 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7526959022286125
[2024-12-02 13:00:49,455 INFO L175 Difference]: Start difference. First operand has 139 places, 108 transitions, 516 flow. Second operand 13 states and 1047 transitions.
[2024-12-02 13:00:49,455 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 138 transitions, 877 flow
[2024-12-02 13:00:49,458 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 138 transitions, 807 flow, removed 7 selfloop flow, removed 20 redundant places.
[2024-12-02 13:00:49,459 INFO L231 Difference]: Finished difference. Result has 130 places, 105 transitions, 438 flow
[2024-12-02 13:00:49,460 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=414, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=438, PETRI_PLACES=130, PETRI_TRANSITIONS=105}
[2024-12-02 13:00:49,460 INFO L279 CegarLoopForPetriNet]: 109 programPoint places, 21 predicate places.
[2024-12-02 13:00:49,460 INFO L471 AbstractCegarLoop]: Abstraction has has 130 places, 105 transitions, 438 flow
[2024-12-02 13:00:49,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 78.61538461538461) internal successors, (1022), 13 states have internal predecessors, (1022), 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 13:00:49,461 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 13:00:49,461 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1]
[2024-12-02 13:00:49,554 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f7449ea-fbb7-4593-b4ae-4d39ba14156c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2024-12-02 13:00:49,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f7449ea-fbb7-4593-b4ae-4d39ba14156c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13
[2024-12-02 13:00:49,661 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] ===
[2024-12-02 13:00:49,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 13:00:49,662 INFO L85 PathProgramCache]: Analyzing trace with hash -2116064329, now seen corresponding path program 2 times
[2024-12-02 13:00:49,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 13:00:49,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214537328]
[2024-12-02 13:00:49,662 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-12-02 13:00:49,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 13:00:50,630 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-12-02 13:00:50,631 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-12-02 13:01:21,279 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 10 proven. 460 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 13:01:21,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 13:01:21,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214537328]
[2024-12-02 13:01:21,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214537328] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 13:01:21,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1103592389]
[2024-12-02 13:01:21,280 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-12-02 13:01:21,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 13:01:21,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f7449ea-fbb7-4593-b4ae-4d39ba14156c/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 13:01:21,282 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f7449ea-fbb7-4593-b4ae-4d39ba14156c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 13:01:21,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f7449ea-fbb7-4593-b4ae-4d39ba14156c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2024-12-02 13:01:22,526 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-12-02 13:01:22,526 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-12-02 13:01:22,538 INFO L256 TraceCheckSpWp]: Trace formula consists of 2242 conjuncts, 263 conjuncts are in the unsatisfiable core
[2024-12-02 13:01:22,548 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 13:01:22,606 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1
[2024-12-02 13:01:22,814 INFO L349 Elim1Store]: treesize reduction 32, result has 36.0 percent of original size
[2024-12-02 13:01:22,814 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 24
[2024-12-02 13:01:22,973 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 23
[2024-12-02 13:01:22,985 INFO L349 Elim1Store]: treesize reduction 21, result has 44.7 percent of original size
[2024-12-02 13:01:22,986 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 21
[2024-12-02 13:01:23,466 INFO L349 Elim1Store]: treesize reduction 44, result has 47.0 percent of original size
[2024-12-02 13:01:23,466 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 45
[2024-12-02 13:01:23,682 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-12-02 13:01:23,683 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 84 treesize of output 51
[2024-12-02 13:01:23,706 INFO L349 Elim1Store]: treesize reduction 44, result has 47.0 percent of original size
[2024-12-02 13:01:23,706 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 59 treesize of output 75
[2024-12-02 13:01:24,411 INFO L349 Elim1Store]: treesize reduction 106, result has 36.1 percent of original size
[2024-12-02 13:01:24,411 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 40 treesize of output 69
[2024-12-02 13:01:24,699 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-12-02 13:01:24,699 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 111 treesize of output 75
[2024-12-02 13:01:24,747 INFO L349 Elim1Store]: treesize reduction 68, result has 59.0 percent of original size
[2024-12-02 13:01:24,747 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 86 treesize of output 153
[2024-12-02 13:01:25,654 INFO L349 Elim1Store]: treesize reduction 188, result has 30.1 percent of original size
[2024-12-02 13:01:25,654 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 51 treesize of output 93
[2024-12-02 13:01:25,978 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-12-02 13:01:25,978 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 138 treesize of output 99
[2024-12-02 13:01:26,047 INFO L349 Elim1Store]: treesize reduction 84, result has 67.8 percent of original size
[2024-12-02 13:01:26,048 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 111 treesize of output 256
[2024-12-02 13:01:27,013 INFO L349 Elim1Store]: treesize reduction 290, result has 26.0 percent of original size
[2024-12-02 13:01:27,013 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 62 treesize of output 117
[2024-12-02 13:01:27,404 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-12-02 13:01:27,404 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 165 treesize of output 123
[2024-12-02 13:01:27,543 INFO L349 Elim1Store]: treesize reduction 116, result has 70.4 percent of original size
[2024-12-02 13:01:27,543 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 140 treesize of output 369
[2024-12-02 13:01:29,027 INFO L349 Elim1Store]: treesize reduction 412, result has 23.0 percent of original size
[2024-12-02 13:01:29,027 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 20 case distinctions, treesize of input 73 treesize of output 141
[2024-12-02 13:01:29,450 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-12-02 13:01:29,450 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 192 treesize of output 147
[2024-12-02 13:01:29,660 INFO L349 Elim1Store]: treesize reduction 128, result has 75.5 percent of original size
[2024-12-02 13:01:29,660 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 20 case distinctions, treesize of input 165 treesize of output 512
[2024-12-02 13:01:33,020 INFO L349 Elim1Store]: treesize reduction 554, result has 20.6 percent of original size
[2024-12-02 13:01:33,021 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 27 case distinctions, treesize of input 84 treesize of output 165
[2024-12-02 13:01:33,573 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-12-02 13:01:33,573 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 219 treesize of output 171
[2024-12-02 13:01:33,779 INFO L349 Elim1Store]: treesize reduction 540, result has 30.8 percent of original size
[2024-12-02 13:01:33,780 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 34 case distinctions, treesize of input 197 treesize of output 379
[2024-12-02 13:03:17,315 WARN L286 SmtUtils]: Spent 1.16m on a formula simplification. DAG size of input: 3498 DAG size of output: 3272 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1)
[2024-12-02 13:03:17,319 INFO L349 Elim1Store]: treesize reduction 1093, result has 87.9 percent of original size
[2024-12-02 13:03:17,323 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 40 select indices, 40 select index equivalence classes, 1 disjoint index pairs (out of 780 index pairs), introduced 40 new quantified variables, introduced 819 case distinctions, treesize of input 2598 treesize of output 10149