./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i --full-output --architecture 32bit


--------------------------------------------------------------------------------


Checking for ERROR reachability
Using default analysis
Version 4f9af400
extending candidate: java
['java']
extending candidate: /usr/bin/java
['java', '/usr/bin/java']
extending candidate: /opt/oracle-jdk-bin-*/bin/java
['java', '/usr/bin/java']
extending candidate: /opt/openjdk-*/bin/java
['java', '/usr/bin/java']
extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java
['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java']
['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml', '-i', '../sv-benchmarks/c/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf', '--cacsl2boogietranslator.entry.function', 'main', '--witnessprinter.witness.directory', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux', '--witnessprinter.witness.filename', 'witness', '--witnessprinter.write.witness.besides.input.file', 'false', '--witnessprinter.graph.data.specification', 'CHECK( init(main()), LTL(G ! call(reach_error())) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '32bit', '--witnessprinter.graph.data.programhash', '4a65477eb93c2031bed3e6d454d38e75e9833f23496d456d5084dd6ae5f38687']
Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4a65477eb93c2031bed3e6d454d38e75e9833f23496d456d5084dd6ae5f38687
--- Real Ultimate output ---
This is Ultimate 0.3.0-?-4f9af40
[2024-11-07 11:18:11,031 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-07 11:18:11,117 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-07 11:18:11,123 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-07 11:18:11,124 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-07 11:18:11,159 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-07 11:18:11,160 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-07 11:18:11,160 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-07 11:18:11,160 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-07 11:18:11,160 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-07 11:18:11,161 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-07 11:18:11,161 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-07 11:18:11,161 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-07 11:18:11,161 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-07 11:18:11,161 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-07 11:18:11,161 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-07 11:18:11,161 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-07 11:18:11,161 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-07 11:18:11,161 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-07 11:18:11,162 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-07 11:18:11,162 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-07 11:18:11,162 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-07 11:18:11,162 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-07 11:18:11,162 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-07 11:18:11,162 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-07 11:18:11,162 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-07 11:18:11,164 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-07 11:18:11,164 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-07 11:18:11,164 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-07 11:18:11,164 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-07 11:18:11,165 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-07 11:18:11,165 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-07 11:18:11,165 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-07 11:18:11,165 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-07 11:18:11,165 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-07 11:18:11,165 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-07 11:18:11,166 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-07 11:18:11,166 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-07 11:18:11,166 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-07 11:18:11,166 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-07 11:18:11,166 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-07 11:18:11,167 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-07 11:18:11,167 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 -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )


Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4a65477eb93c2031bed3e6d454d38e75e9833f23496d456d5084dd6ae5f38687
[2024-11-07 11:18:11,612 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-07 11:18:11,621 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-07 11:18:11,624 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-07 11:18:11,625 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-07 11:18:11,625 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-07 11:18:11,627 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i
[2024-11-07 11:18:12,960 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-07 11:18:13,272 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-07 11:18:13,273 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i
[2024-11-07 11:18:13,295 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7ba814fb6/bfc4481a92a54873a0f4459f3942c6a2/FLAG0f73748e4
[2024-11-07 11:18:13,319 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7ba814fb6/bfc4481a92a54873a0f4459f3942c6a2
[2024-11-07 11:18:13,321 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-07 11:18:13,323 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-07 11:18:13,325 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-07 11:18:13,325 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-07 11:18:13,329 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-07 11:18:13,330 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:18:13" (1/1) ...
[2024-11-07 11:18:13,331 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@331648e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:18:13, skipping insertion in model container
[2024-11-07 11:18:13,332 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:18:13" (1/1) ...
[2024-11-07 11:18:13,367 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-07 11:18:13,508 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i[1107,1120]
[2024-11-07 11:18:13,634 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-07 11:18:13,649 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-07 11:18:13,658 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i[1107,1120]
[2024-11-07 11:18:13,685 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-07 11:18:13,722 INFO  L204         MainTranslator]: Completed translation
[2024-11-07 11:18:13,723 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:18:13 WrapperNode
[2024-11-07 11:18:13,723 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-07 11:18:13,724 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-07 11:18:13,725 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-07 11:18:13,725 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-07 11:18:13,730 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:18:13" (1/1) ...
[2024-11-07 11:18:13,746 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:18:13" (1/1) ...
[2024-11-07 11:18:13,767 INFO  L138                Inliner]: procedures = 165, calls = 23, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 99
[2024-11-07 11:18:13,767 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-07 11:18:13,768 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-07 11:18:13,768 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-07 11:18:13,768 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-07 11:18:13,774 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:18:13" (1/1) ...
[2024-11-07 11:18:13,774 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:18:13" (1/1) ...
[2024-11-07 11:18:13,777 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:18:13" (1/1) ...
[2024-11-07 11:18:13,793 INFO  L175           MemorySlicer]: Split 7 memory accesses to 2 slices as follows [2, 5]. 71 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5]. The 0 writes are split as follows [0, 0].
[2024-11-07 11:18:13,793 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:18:13" (1/1) ...
[2024-11-07 11:18:13,793 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:18:13" (1/1) ...
[2024-11-07 11:18:13,797 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:18:13" (1/1) ...
[2024-11-07 11:18:13,800 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:18:13" (1/1) ...
[2024-11-07 11:18:13,801 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:18:13" (1/1) ...
[2024-11-07 11:18:13,801 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:18:13" (1/1) ...
[2024-11-07 11:18:13,803 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-07 11:18:13,804 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-07 11:18:13,804 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-07 11:18:13,804 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-07 11:18:13,805 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:18:13" (1/1) ...
[2024-11-07 11:18:13,809 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-07 11:18:13,820 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 11:18:13,831 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-07 11:18:13,833 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-07 11:18:13,853 INFO  L130     BoogieDeclarations]: Found specification of procedure worker
[2024-11-07 11:18:13,853 INFO  L138     BoogieDeclarations]: Found implementation of procedure worker
[2024-11-07 11:18:13,853 INFO  L130     BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock
[2024-11-07 11:18:13,853 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-07 11:18:13,853 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-07 11:18:13,853 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#1
[2024-11-07 11:18:13,853 INFO  L130     BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock
[2024-11-07 11:18:13,853 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-07 11:18:13,853 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-07 11:18:13,855 WARN  L207             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement.
[2024-11-07 11:18:13,976 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-07 11:18:13,977 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-07 11:18:14,180 INFO  L283             CfgBuilder]: Omitted future-live optimization because the input is a concurrent program.
[2024-11-07 11:18:14,180 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-07 11:18:14,311 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-07 11:18:14,312 INFO  L316             CfgBuilder]: Removed 3 assume(true) statements.
[2024-11-07 11:18:14,312 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:18:14 BoogieIcfgContainer
[2024-11-07 11:18:14,312 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-07 11:18:14,314 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-07 11:18:14,314 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-07 11:18:14,318 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-07 11:18:14,319 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 11:18:13" (1/3) ...
[2024-11-07 11:18:14,319 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c495f66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:18:14, skipping insertion in model container
[2024-11-07 11:18:14,319 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:18:13" (2/3) ...
[2024-11-07 11:18:14,319 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c495f66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:18:14, skipping insertion in model container
[2024-11-07 11:18:14,319 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:18:14" (3/3) ...
[2024-11-07 11:18:14,320 INFO  L112   eAbstractionObserver]: Analyzing ICFG 13-privatized_69-refine-protected-loop-interval_true.i
[2024-11-07 11:18:14,334 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-07 11:18:14,334 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2024-11-07 11:18:14,334 INFO  L489   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2024-11-07 11:18:14,382 INFO  L143    ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2024-11-07 11:18:14,414 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 32 places, 34 transitions, 72 flow
[2024-11-07 11:18:14,444 INFO  L124   PetriNetUnfolderBase]: 6/33 cut-off events.
[2024-11-07 11:18:14,447 INFO  L125   PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-11-07 11:18:14,449 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 37 conditions, 33 events. 6/33 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 45 event pairs, 0 based on Foata normal form. 0/25 useless extension candidates. Maximal degree in co-relation 31. Up to 2 conditions per place. 
[2024-11-07 11:18:14,449 INFO  L82        GeneralOperation]: Start removeDead. Operand has 32 places, 34 transitions, 72 flow
[2024-11-07 11:18:14,453 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 31 places, 33 transitions, 69 flow
[2024-11-07 11:18:14,459 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-07 11:18:14,473 INFO  L333      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@62debb35, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-07 11:18:14,474 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 5 error locations.
[2024-11-07 11:18:14,486 INFO  L185   PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2024-11-07 11:18:14,486 INFO  L124   PetriNetUnfolderBase]: 4/23 cut-off events.
[2024-11-07 11:18:14,486 INFO  L125   PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-11-07 11:18:14,487 INFO  L196   CegarLoopForPetriNet]: Found error trace
[2024-11-07 11:18:14,487 INFO  L204   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 11:18:14,488 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] ===
[2024-11-07 11:18:14,492 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 11:18:14,493 INFO  L85        PathProgramCache]: Analyzing trace with hash -1341466292, now seen corresponding path program 1 times
[2024-11-07 11:18:14,499 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 11:18:14,500 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314358065]
[2024-11-07 11:18:14,500 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 11:18:14,500 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 11:18:14,588 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 11:18:14,778 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 11:18:14,778 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 11:18:14,781 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314358065]
[2024-11-07 11:18:14,781 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314358065] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 11:18:14,782 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 11:18:14,782 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-07 11:18:14,783 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686688908]
[2024-11-07 11:18:14,784 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 11:18:14,789 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-07 11:18:14,793 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 11:18:14,816 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-07 11:18:14,816 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-07 11:18:14,829 INFO  L467   CegarLoopForPetriNet]: Number of universal loopers: 8 out of 34
[2024-11-07 11:18:14,832 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 33 transitions, 69 flow. Second operand  has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 11:18:14,832 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 11:18:14,832 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 34
[2024-11-07 11:18:14,833 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 11:18:15,011 INFO  L124   PetriNetUnfolderBase]: 135/274 cut-off events.
[2024-11-07 11:18:15,012 INFO  L125   PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-11-07 11:18:15,013 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 526 conditions, 274 events. 135/274 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 956 event pairs, 43 based on Foata normal form. 6/239 useless extension candidates. Maximal degree in co-relation 517. Up to 144 conditions per place. 
[2024-11-07 11:18:15,016 INFO  L140   encePairwiseOnDemand]: 23/34 looper letters, 32 selfloop transitions, 9 changer transitions 2/49 dead transitions.
[2024-11-07 11:18:15,016 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 49 transitions, 187 flow
[2024-11-07 11:18:15,019 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-07 11:18:15,021 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2024-11-07 11:18:15,030 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 90 transitions.
[2024-11-07 11:18:15,031 INFO  L512   CegarLoopForPetriNet]: DFA transition density 0.5294117647058824
[2024-11-07 11:18:15,035 INFO  L175             Difference]: Start difference. First operand has 31 places, 33 transitions, 69 flow. Second operand 5 states and 90 transitions.
[2024-11-07 11:18:15,036 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 49 transitions, 187 flow
[2024-11-07 11:18:15,040 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 49 transitions, 186 flow, removed 0 selfloop flow, removed 1 redundant places.
[2024-11-07 11:18:15,044 INFO  L231             Difference]: Finished difference. Result has 35 places, 33 transitions, 116 flow
[2024-11-07 11:18:15,046 INFO  L260   CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=116, PETRI_PLACES=35, PETRI_TRANSITIONS=33}
[2024-11-07 11:18:15,050 INFO  L277   CegarLoopForPetriNet]: 31 programPoint places, 4 predicate places.
[2024-11-07 11:18:15,051 INFO  L471      AbstractCegarLoop]: Abstraction has has 35 places, 33 transitions, 116 flow
[2024-11-07 11:18:15,052 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 11:18:15,052 INFO  L196   CegarLoopForPetriNet]: Found error trace
[2024-11-07 11:18:15,052 INFO  L204   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 11:18:15,053 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-07 11:18:15,053 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] ===
[2024-11-07 11:18:15,053 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 11:18:15,054 INFO  L85        PathProgramCache]: Analyzing trace with hash 1549113390, now seen corresponding path program 1 times
[2024-11-07 11:18:15,054 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 11:18:15,054 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578318201]
[2024-11-07 11:18:15,054 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 11:18:15,054 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 11:18:15,091 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 11:18:15,285 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 11:18:15,285 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 11:18:15,286 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578318201]
[2024-11-07 11:18:15,286 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578318201] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 11:18:15,286 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 11:18:15,286 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-07 11:18:15,286 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355815680]
[2024-11-07 11:18:15,286 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 11:18:15,287 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-07 11:18:15,287 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 11:18:15,288 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-07 11:18:15,288 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-07 11:18:15,293 INFO  L467   CegarLoopForPetriNet]: Number of universal loopers: 11 out of 34
[2024-11-07 11:18:15,293 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 33 transitions, 116 flow. Second operand  has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 11:18:15,293 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 11:18:15,293 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 34
[2024-11-07 11:18:15,294 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 11:18:15,425 INFO  L124   PetriNetUnfolderBase]: 107/251 cut-off events.
[2024-11-07 11:18:15,425 INFO  L125   PetriNetUnfolderBase]: For 173/179 co-relation queries the response was YES.
[2024-11-07 11:18:15,426 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 634 conditions, 251 events. 107/251 cut-off events. For 173/179 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 802 event pairs, 22 based on Foata normal form. 12/243 useless extension candidates. Maximal degree in co-relation 620. Up to 89 conditions per place. 
[2024-11-07 11:18:15,431 INFO  L140   encePairwiseOnDemand]: 28/34 looper letters, 31 selfloop transitions, 5 changer transitions 1/45 dead transitions.
[2024-11-07 11:18:15,432 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 45 transitions, 226 flow
[2024-11-07 11:18:15,433 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-07 11:18:15,433 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-11-07 11:18:15,434 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 82 transitions.
[2024-11-07 11:18:15,434 INFO  L512   CegarLoopForPetriNet]: DFA transition density 0.6029411764705882
[2024-11-07 11:18:15,434 INFO  L175             Difference]: Start difference. First operand has 35 places, 33 transitions, 116 flow. Second operand 4 states and 82 transitions.
[2024-11-07 11:18:15,434 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 45 transitions, 226 flow
[2024-11-07 11:18:15,436 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 45 transitions, 226 flow, removed 0 selfloop flow, removed 0 redundant places.
[2024-11-07 11:18:15,437 INFO  L231             Difference]: Finished difference. Result has 38 places, 31 transitions, 137 flow
[2024-11-07 11:18:15,437 INFO  L260   CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=137, PETRI_PLACES=38, PETRI_TRANSITIONS=31}
[2024-11-07 11:18:15,438 INFO  L277   CegarLoopForPetriNet]: 31 programPoint places, 7 predicate places.
[2024-11-07 11:18:15,438 INFO  L471      AbstractCegarLoop]: Abstraction has has 38 places, 31 transitions, 137 flow
[2024-11-07 11:18:15,438 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 11:18:15,438 INFO  L196   CegarLoopForPetriNet]: Found error trace
[2024-11-07 11:18:15,439 INFO  L204   CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 11:18:15,439 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-07 11:18:15,439 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] ===
[2024-11-07 11:18:15,439 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 11:18:15,439 INFO  L85        PathProgramCache]: Analyzing trace with hash -1651330661, now seen corresponding path program 1 times
[2024-11-07 11:18:15,439 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 11:18:15,439 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223807350]
[2024-11-07 11:18:15,440 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 11:18:15,440 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 11:18:15,466 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 11:18:15,559 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-07 11:18:15,561 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 11:18:15,561 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223807350]
[2024-11-07 11:18:15,561 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223807350] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 11:18:15,561 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 11:18:15,561 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-07 11:18:15,561 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785326946]
[2024-11-07 11:18:15,561 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 11:18:15,561 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-07 11:18:15,562 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 11:18:15,562 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-07 11:18:15,562 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-07 11:18:15,562 INFO  L467   CegarLoopForPetriNet]: Number of universal loopers: 12 out of 34
[2024-11-07 11:18:15,562 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 31 transitions, 137 flow. Second operand  has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 11:18:15,562 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 11:18:15,563 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 34
[2024-11-07 11:18:15,563 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 11:18:15,635 INFO  L124   PetriNetUnfolderBase]: 64/171 cut-off events.
[2024-11-07 11:18:15,636 INFO  L125   PetriNetUnfolderBase]: For 141/141 co-relation queries the response was YES.
[2024-11-07 11:18:15,638 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 434 conditions, 171 events. 64/171 cut-off events. For 141/141 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 498 event pairs, 16 based on Foata normal form. 13/168 useless extension candidates. Maximal degree in co-relation 416. Up to 89 conditions per place. 
[2024-11-07 11:18:15,639 INFO  L140   encePairwiseOnDemand]: 30/34 looper letters, 21 selfloop transitions, 4 changer transitions 4/36 dead transitions.
[2024-11-07 11:18:15,640 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 36 transitions, 196 flow
[2024-11-07 11:18:15,640 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-07 11:18:15,640 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-11-07 11:18:15,641 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 62 transitions.
[2024-11-07 11:18:15,641 INFO  L512   CegarLoopForPetriNet]: DFA transition density 0.6078431372549019
[2024-11-07 11:18:15,641 INFO  L175             Difference]: Start difference. First operand has 38 places, 31 transitions, 137 flow. Second operand 3 states and 62 transitions.
[2024-11-07 11:18:15,641 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 36 transitions, 196 flow
[2024-11-07 11:18:15,643 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 36 transitions, 182 flow, removed 2 selfloop flow, removed 3 redundant places.
[2024-11-07 11:18:15,644 INFO  L231             Difference]: Finished difference. Result has 37 places, 27 transitions, 106 flow
[2024-11-07 11:18:15,644 INFO  L260   CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=106, PETRI_PLACES=37, PETRI_TRANSITIONS=27}
[2024-11-07 11:18:15,645 INFO  L277   CegarLoopForPetriNet]: 31 programPoint places, 6 predicate places.
[2024-11-07 11:18:15,645 INFO  L471      AbstractCegarLoop]: Abstraction has has 37 places, 27 transitions, 106 flow
[2024-11-07 11:18:15,645 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 11:18:15,645 INFO  L196   CegarLoopForPetriNet]: Found error trace
[2024-11-07 11:18:15,645 INFO  L204   CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 11:18:15,645 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-07 11:18:15,645 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] ===
[2024-11-07 11:18:15,646 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 11:18:15,646 INFO  L85        PathProgramCache]: Analyzing trace with hash 982460297, now seen corresponding path program 1 times
[2024-11-07 11:18:15,646 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 11:18:15,646 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790886017]
[2024-11-07 11:18:15,646 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 11:18:15,646 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 11:18:15,675 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 11:18:15,829 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 11:18:15,831 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 11:18:15,831 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790886017]
[2024-11-07 11:18:15,831 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790886017] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 11:18:15,831 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 11:18:15,831 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-07 11:18:15,831 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455323519]
[2024-11-07 11:18:15,831 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 11:18:15,832 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-07 11:18:15,832 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 11:18:15,832 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-07 11:18:15,832 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-07 11:18:15,845 INFO  L467   CegarLoopForPetriNet]: Number of universal loopers: 7 out of 34
[2024-11-07 11:18:15,845 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 27 transitions, 106 flow. Second operand  has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 11:18:15,845 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 11:18:15,845 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 34
[2024-11-07 11:18:15,845 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 11:18:15,989 INFO  L124   PetriNetUnfolderBase]: 80/197 cut-off events.
[2024-11-07 11:18:15,990 INFO  L125   PetriNetUnfolderBase]: For 107/107 co-relation queries the response was YES.
[2024-11-07 11:18:15,991 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 501 conditions, 197 events. 80/197 cut-off events. For 107/107 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 578 event pairs, 26 based on Foata normal form. 8/184 useless extension candidates. Maximal degree in co-relation 493. Up to 74 conditions per place. 
[2024-11-07 11:18:15,992 INFO  L140   encePairwiseOnDemand]: 26/34 looper letters, 0 selfloop transitions, 0 changer transitions 40/40 dead transitions.
[2024-11-07 11:18:15,993 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 40 transitions, 216 flow
[2024-11-07 11:18:15,993 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-07 11:18:15,993 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2024-11-07 11:18:15,994 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 79 transitions.
[2024-11-07 11:18:15,994 INFO  L512   CegarLoopForPetriNet]: DFA transition density 0.3872549019607843
[2024-11-07 11:18:15,994 INFO  L175             Difference]: Start difference. First operand has 37 places, 27 transitions, 106 flow. Second operand 6 states and 79 transitions.
[2024-11-07 11:18:15,994 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 40 transitions, 216 flow
[2024-11-07 11:18:15,995 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 40 transitions, 196 flow, removed 0 selfloop flow, removed 3 redundant places.
[2024-11-07 11:18:15,996 INFO  L231             Difference]: Finished difference. Result has 36 places, 0 transitions, 0 flow
[2024-11-07 11:18:15,996 INFO  L260   CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=36, PETRI_TRANSITIONS=0}
[2024-11-07 11:18:16,000 INFO  L277   CegarLoopForPetriNet]: 31 programPoint places, 5 predicate places.
[2024-11-07 11:18:16,000 INFO  L471      AbstractCegarLoop]: Abstraction has has 36 places, 0 transitions, 0 flow
[2024-11-07 11:18:16,001 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 11:18:16,003 INFO  L782   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 5 remaining)
[2024-11-07 11:18:16,004 INFO  L782   garLoopResultBuilder]: Registering result SAFE for location workerErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining)
[2024-11-07 11:18:16,004 INFO  L782   garLoopResultBuilder]: Registering result SAFE for location workerErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining)
[2024-11-07 11:18:16,004 INFO  L782   garLoopResultBuilder]: Registering result SAFE for location workerErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining)
[2024-11-07 11:18:16,004 INFO  L782   garLoopResultBuilder]: Registering result SAFE for location workerErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining)
[2024-11-07 11:18:16,004 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-07 11:18:16,005 INFO  L407         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2024-11-07 11:18:16,010 INFO  L239   ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances
[2024-11-07 11:18:16,010 INFO  L170   ceAbstractionStarter]: Computing trace abstraction results
[2024-11-07 11:18:16,016 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 11:18:16 BasicIcfg
[2024-11-07 11:18:16,017 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-07 11:18:16,018 INFO  L112        PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-07 11:18:16,018 INFO  L270        PluginConnector]: Initializing Witness Printer...
[2024-11-07 11:18:16,018 INFO  L274        PluginConnector]: Witness Printer initialized
[2024-11-07 11:18:16,019 INFO  L184        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:18:14" (3/4) ...
[2024-11-07 11:18:16,021 INFO  L142         WitnessPrinter]: Generating witness for correct program
[2024-11-07 11:18:16,023 INFO  L361     RCFGBacktranslator]: Ignoring RootEdge to procedure worker
[2024-11-07 11:18:16,027 INFO  L925   BoogieBacktranslator]: Reduced CFG by removing 40 nodes and edges
[2024-11-07 11:18:16,027 INFO  L925   BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges
[2024-11-07 11:18:16,027 INFO  L925   BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges
[2024-11-07 11:18:16,027 INFO  L925   BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges
[2024-11-07 11:18:16,097 INFO  L149         WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml
[2024-11-07 11:18:16,097 INFO  L149         WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml
[2024-11-07 11:18:16,098 INFO  L131        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-07 11:18:16,100 INFO  L158              Benchmark]: Toolchain (without parser) took 2775.41ms. Allocated memory was 117.4MB in the beginning and 159.4MB in the end (delta: 41.9MB). Free memory was 90.4MB in the beginning and 92.6MB in the end (delta: -2.3MB). Peak memory consumption was 40.4MB. Max. memory is 16.1GB.
[2024-11-07 11:18:16,101 INFO  L158              Benchmark]: CDTParser took 0.92ms. Allocated memory is still 117.4MB. Free memory is still 81.5MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-07 11:18:16,101 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 398.69ms. Allocated memory is still 117.4MB. Free memory was 90.2MB in the beginning and 70.4MB in the end (delta: 19.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-11-07 11:18:16,102 INFO  L158              Benchmark]: Boogie Procedure Inliner took 43.32ms. Allocated memory is still 117.4MB. Free memory was 70.4MB in the beginning and 68.6MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-07 11:18:16,102 INFO  L158              Benchmark]: Boogie Preprocessor took 35.28ms. Allocated memory is still 117.4MB. Free memory was 68.6MB in the beginning and 67.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-07 11:18:16,102 INFO  L158              Benchmark]: RCFGBuilder took 508.48ms. Allocated memory is still 117.4MB. Free memory was 66.9MB in the beginning and 87.1MB in the end (delta: -20.2MB). Peak memory consumption was 29.8MB. Max. memory is 16.1GB.
[2024-11-07 11:18:16,103 INFO  L158              Benchmark]: TraceAbstraction took 1703.03ms. Allocated memory was 117.4MB in the beginning and 159.4MB in the end (delta: 41.9MB). Free memory was 86.2MB in the beginning and 97.1MB in the end (delta: -10.9MB). Peak memory consumption was 27.4MB. Max. memory is 16.1GB.
[2024-11-07 11:18:16,103 INFO  L158              Benchmark]: Witness Printer took 79.77ms. Allocated memory is still 159.4MB. Free memory was 97.1MB in the beginning and 92.6MB in the end (delta: 4.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-07 11:18:16,105 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.92ms. Allocated memory is still 117.4MB. Free memory is still 81.5MB. There was no memory consumed. Max. memory is 16.1GB.
 * CACSL2BoogieTranslator took 398.69ms. Allocated memory is still 117.4MB. Free memory was 90.2MB in the beginning and 70.4MB in the end (delta: 19.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
 * Boogie Procedure Inliner took 43.32ms. Allocated memory is still 117.4MB. Free memory was 70.4MB in the beginning and 68.6MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
 * Boogie Preprocessor took 35.28ms. Allocated memory is still 117.4MB. Free memory was 68.6MB in the beginning and 67.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB.
 * RCFGBuilder took 508.48ms. Allocated memory is still 117.4MB. Free memory was 66.9MB in the beginning and 87.1MB in the end (delta: -20.2MB). Peak memory consumption was 29.8MB. Max. memory is 16.1GB.
 * TraceAbstraction took 1703.03ms. Allocated memory was 117.4MB in the beginning and 159.4MB in the end (delta: 41.9MB). Free memory was 86.2MB in the beginning and 97.1MB in the end (delta: -10.9MB). Peak memory consumption was 27.4MB. Max. memory is 16.1GB.
 * Witness Printer took 79.77ms. Allocated memory is still 159.4MB. Free memory was 97.1MB in the beginning and 92.6MB in the end (delta: 4.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - PositiveResult [Line: 19]: a call to reach_error is unreachable
    For all program executions holds that a call to reach_error is unreachable at this location
  - PositiveResult [Line: 19]: a call to reach_error is unreachable
    For all program executions holds that a call to reach_error is unreachable at this location
  - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances
    CFG has 3 procedures, 50 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.6s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 88 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 84 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 243 IncrementalHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 1 mSDtfsCounter, 243 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=137occurred in iteration=2, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 69 NumberOfCodeBlocks, 69 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 65 ConstructedInterpolants, 0 QuantifiedInterpolants, 149 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 8/8 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
  - AllSpecificationsHoldResult: All specifications hold
    2 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2024-11-07 11:18:16,135 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
--- End real Ultimate output ---

Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE