./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread/reorder_5.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/pthread/reorder_5.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', '0517a9ebb69eeca4ecbb6ac063832eb703719698fb2ee670ca348e2c511f9dfd']
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/pthread/reorder_5.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 0517a9ebb69eeca4ecbb6ac063832eb703719698fb2ee670ca348e2c511f9dfd
--- Real Ultimate output ---
This is Ultimate 0.3.0-?-4f9af40
[2024-11-07 11:05:55,912 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-07 11:05:56,018 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-07 11:05:56,025 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-07 11:05:56,026 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-07 11:05:56,055 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-07 11:05:56,058 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-07 11:05:56,058 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-07 11:05:56,058 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-07 11:05:56,059 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-07 11:05:56,060 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-07 11:05:56,060 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-07 11:05:56,060 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-07 11:05:56,060 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-07 11:05:56,061 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-07 11:05:56,061 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-07 11:05:56,061 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-07 11:05:56,061 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-07 11:05:56,061 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-07 11:05:56,061 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-07 11:05:56,062 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-07 11:05:56,062 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-07 11:05:56,062 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-07 11:05:56,062 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-07 11:05:56,062 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-07 11:05:56,062 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-07 11:05:56,062 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-07 11:05:56,063 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-07 11:05:56,063 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-07 11:05:56,063 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-07 11:05:56,063 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-07 11:05:56,064 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-07 11:05:56,064 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-07 11:05:56,064 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-07 11:05:56,064 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-07 11:05:56,064 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-07 11:05:56,064 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-07 11:05:56,065 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-07 11:05:56,065 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-07 11:05:56,065 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-07 11:05:56,065 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-07 11:05:56,065 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-07 11:05:56,065 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 -> 0517a9ebb69eeca4ecbb6ac063832eb703719698fb2ee670ca348e2c511f9dfd
[2024-11-07 11:05:56,350 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-07 11:05:56,356 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-07 11:05:56,358 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-07 11:05:56,359 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-07 11:05:56,359 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-07 11:05:56,360 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread/reorder_5.i
[2024-11-07 11:05:57,649 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-07 11:05:57,915 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-07 11:05:57,916 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread/reorder_5.i
[2024-11-07 11:05:57,934 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5b3534112/ccbab96cd34b467ebe882133b670c320/FLAGe23ca35d6
[2024-11-07 11:05:57,952 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5b3534112/ccbab96cd34b467ebe882133b670c320
[2024-11-07 11:05:57,954 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-07 11:05:57,957 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-07 11:05:57,960 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-07 11:05:57,960 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-07 11:05:57,964 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-07 11:05:57,964 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:05:57" (1/1) ...
[2024-11-07 11:05:57,965 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69e3dd20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:05:57, skipping insertion in model container
[2024-11-07 11:05:57,966 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:05:57" (1/1) ...
[2024-11-07 11:05:58,004 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-07 11:05:58,414 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/pthread/reorder_5.i[59755,59768]
[2024-11-07 11:05:58,417 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-07 11:05:58,424 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-07 11:05:58,489 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/pthread/reorder_5.i[59755,59768]
[2024-11-07 11:05:58,490 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-07 11:05:58,575 INFO  L204         MainTranslator]: Completed translation
[2024-11-07 11:05:58,576 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:05:58 WrapperNode
[2024-11-07 11:05:58,576 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-07 11:05:58,577 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-07 11:05:58,577 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-07 11:05:58,577 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-07 11:05:58,582 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:05:58" (1/1) ...
[2024-11-07 11:05:58,606 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:05:58" (1/1) ...
[2024-11-07 11:05:58,631 INFO  L138                Inliner]: procedures = 371, calls = 27, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 121
[2024-11-07 11:05:58,631 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-07 11:05:58,632 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-07 11:05:58,632 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-07 11:05:58,633 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-07 11:05:58,640 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:05:58" (1/1) ...
[2024-11-07 11:05:58,641 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:05:58" (1/1) ...
[2024-11-07 11:05:58,645 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:05:58" (1/1) ...
[2024-11-07 11:05:58,670 INFO  L175           MemorySlicer]: Split 6 memory accesses to 3 slices as follows [2, 2, 2]. 33 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 2 writes are split as follows [0, 1, 1].
[2024-11-07 11:05:58,671 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:05:58" (1/1) ...
[2024-11-07 11:05:58,671 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:05:58" (1/1) ...
[2024-11-07 11:05:58,682 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:05:58" (1/1) ...
[2024-11-07 11:05:58,685 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:05:58" (1/1) ...
[2024-11-07 11:05:58,691 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:05:58" (1/1) ...
[2024-11-07 11:05:58,692 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:05:58" (1/1) ...
[2024-11-07 11:05:58,698 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-07 11:05:58,699 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-07 11:05:58,699 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-07 11:05:58,699 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-07 11:05:58,700 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:05:58" (1/1) ...
[2024-11-07 11:05:58,709 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-07 11:05:58,724 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 11:05:58,758 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 11:05:58,760 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 11:05:58,782 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2024-11-07 11:05:58,782 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2024-11-07 11:05:58,782 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-11-07 11:05:58,782 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2024-11-07 11:05:58,782 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#0
[2024-11-07 11:05:58,782 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#1
[2024-11-07 11:05:58,782 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#2
[2024-11-07 11:05:58,783 INFO  L130     BoogieDeclarations]: Found specification of procedure setThread
[2024-11-07 11:05:58,783 INFO  L138     BoogieDeclarations]: Found implementation of procedure setThread
[2024-11-07 11:05:58,783 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#0
[2024-11-07 11:05:58,783 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#1
[2024-11-07 11:05:58,783 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#2
[2024-11-07 11:05:58,783 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-07 11:05:58,783 INFO  L130     BoogieDeclarations]: Found specification of procedure checkThread
[2024-11-07 11:05:58,783 INFO  L138     BoogieDeclarations]: Found implementation of procedure checkThread
[2024-11-07 11:05:58,783 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-07 11:05:58,783 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#1
[2024-11-07 11:05:58,783 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#2
[2024-11-07 11:05:58,783 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-07 11:05:58,783 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-07 11:05:58,784 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 11:05:58,944 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-07 11:05:58,946 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-07 11:05:59,139 INFO  L283             CfgBuilder]: Omitted future-live optimization because the input is a concurrent program.
[2024-11-07 11:05:59,139 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-07 11:05:59,309 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-07 11:05:59,309 INFO  L316             CfgBuilder]: Removed 4 assume(true) statements.
[2024-11-07 11:05:59,310 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:05:59 BoogieIcfgContainer
[2024-11-07 11:05:59,311 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-07 11:05:59,313 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-07 11:05:59,313 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-07 11:05:59,317 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-07 11:05:59,318 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 11:05:57" (1/3) ...
[2024-11-07 11:05:59,318 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14d1d2d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:05:59, skipping insertion in model container
[2024-11-07 11:05:59,318 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:05:58" (2/3) ...
[2024-11-07 11:05:59,318 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14d1d2d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:05:59, skipping insertion in model container
[2024-11-07 11:05:59,319 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:05:59" (3/3) ...
[2024-11-07 11:05:59,320 INFO  L112   eAbstractionObserver]: Analyzing ICFG reorder_5.i
[2024-11-07 11:05:59,332 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-07 11:05:59,333 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-07 11:05:59,333 INFO  L489   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2024-11-07 11:05:59,368 INFO  L143    ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions.
[2024-11-07 11:05:59,403 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 33 places, 33 transitions, 86 flow
[2024-11-07 11:05:59,442 INFO  L124   PetriNetUnfolderBase]: 10/72 cut-off events.
[2024-11-07 11:05:59,445 INFO  L125   PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES.
[2024-11-07 11:05:59,448 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 89 conditions, 72 events. 10/72 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 281 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 38. Up to 7 conditions per place. 
[2024-11-07 11:05:59,449 INFO  L82        GeneralOperation]: Start removeDead. Operand has 33 places, 33 transitions, 86 flow
[2024-11-07 11:05:59,451 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 33 places, 31 transitions, 76 flow
[2024-11-07 11:05:59,457 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-07 11:05:59,469 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;@59208329, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-07 11:05:59,469 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 4 error locations.
[2024-11-07 11:05:59,478 INFO  L185   PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2024-11-07 11:05:59,479 INFO  L124   PetriNetUnfolderBase]: 0/19 cut-off events.
[2024-11-07 11:05:59,479 INFO  L125   PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-11-07 11:05:59,479 INFO  L196   CegarLoopForPetriNet]: Found error trace
[2024-11-07 11:05:59,480 INFO  L204   CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1]
[2024-11-07 11:05:59,480 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-11-07 11:05:59,484 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 11:05:59,485 INFO  L85        PathProgramCache]: Analyzing trace with hash -1899581443, now seen corresponding path program 1 times
[2024-11-07 11:05:59,490 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 11:05:59,490 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385248187]
[2024-11-07 11:05:59,491 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 11:05:59,491 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 11:05:59,643 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-07 11:05:59,644 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-07 11:05:59,669 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-07 11:05:59,696 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-11-07 11:05:59,698 INFO  L325         BasicCegarLoop]: Counterexample is feasible
[2024-11-07 11:05:59,699 INFO  L782   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 4 remaining)
[2024-11-07 11:05:59,703 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining)
[2024-11-07 11:05:59,703 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining)
[2024-11-07 11:05:59,703 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining)
[2024-11-07 11:05:59,704 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-07 11:05:59,704 INFO  L407         BasicCegarLoop]: Path program histogram: [1]
[2024-11-07 11:05:59,706 WARN  L244   ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-11-07 11:05:59,707 INFO  L489   ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances.
[2024-11-07 11:05:59,736 INFO  L143    ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions.
[2024-11-07 11:05:59,741 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 50 places, 51 transitions, 146 flow
[2024-11-07 11:05:59,816 INFO  L124   PetriNetUnfolderBase]: 63/259 cut-off events.
[2024-11-07 11:05:59,816 INFO  L125   PetriNetUnfolderBase]: For 72/79 co-relation queries the response was YES.
[2024-11-07 11:05:59,820 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 348 conditions, 259 events. 63/259 cut-off events. For 72/79 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1385 event pairs, 2 based on Foata normal form. 0/203 useless extension candidates. Maximal degree in co-relation 173. Up to 32 conditions per place. 
[2024-11-07 11:05:59,820 INFO  L82        GeneralOperation]: Start removeDead. Operand has 50 places, 51 transitions, 146 flow
[2024-11-07 11:05:59,822 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 50 places, 51 transitions, 146 flow
[2024-11-07 11:05:59,825 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-07 11:05:59,825 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;@59208329, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-07 11:05:59,827 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 5 error locations.
[2024-11-07 11:05:59,845 INFO  L185   PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2024-11-07 11:05:59,845 INFO  L124   PetriNetUnfolderBase]: 1/49 cut-off events.
[2024-11-07 11:05:59,845 INFO  L125   PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES.
[2024-11-07 11:05:59,846 INFO  L196   CegarLoopForPetriNet]: Found error trace
[2024-11-07 11:05:59,846 INFO  L204   CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1]
[2024-11-07 11:05:59,846 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] ===
[2024-11-07 11:05:59,846 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 11:05:59,846 INFO  L85        PathProgramCache]: Analyzing trace with hash 939220890, now seen corresponding path program 1 times
[2024-11-07 11:05:59,846 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 11:05:59,846 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665984528]
[2024-11-07 11:05:59,846 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 11:05:59,847 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 11:05:59,891 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-07 11:05:59,892 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-07 11:05:59,927 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-07 11:05:59,933 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-11-07 11:05:59,934 INFO  L325         BasicCegarLoop]: Counterexample is feasible
[2024-11-07 11:05:59,934 INFO  L782   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 5 remaining)
[2024-11-07 11:05:59,934 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining)
[2024-11-07 11:05:59,934 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining)
[2024-11-07 11:05:59,935 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining)
[2024-11-07 11:05:59,935 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining)
[2024-11-07 11:05:59,935 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-07 11:05:59,935 INFO  L407         BasicCegarLoop]: Path program histogram: [1]
[2024-11-07 11:05:59,936 WARN  L244   ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-11-07 11:05:59,936 INFO  L489   ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances.
[2024-11-07 11:05:59,978 INFO  L143    ThreadInstanceAdder]: Constructed 12 joinOtherThreadTransitions.
[2024-11-07 11:05:59,981 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 67 places, 69 transitions, 210 flow
[2024-11-07 11:06:00,112 INFO  L124   PetriNetUnfolderBase]: 348/950 cut-off events.
[2024-11-07 11:06:00,113 INFO  L125   PetriNetUnfolderBase]: For 419/437 co-relation queries the response was YES.
[2024-11-07 11:06:00,122 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 1386 conditions, 950 events. 348/950 cut-off events. For 419/437 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 5609 event pairs, 32 based on Foata normal form. 0/778 useless extension candidates. Maximal degree in co-relation 681. Up to 192 conditions per place. 
[2024-11-07 11:06:00,122 INFO  L82        GeneralOperation]: Start removeDead. Operand has 67 places, 69 transitions, 210 flow
[2024-11-07 11:06:00,128 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 67 places, 69 transitions, 210 flow
[2024-11-07 11:06:00,129 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-07 11:06:00,132 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;@59208329, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-07 11:06:00,132 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 6 error locations.
[2024-11-07 11:06:00,138 INFO  L185   PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2024-11-07 11:06:00,139 INFO  L124   PetriNetUnfolderBase]: 3/59 cut-off events.
[2024-11-07 11:06:00,139 INFO  L125   PetriNetUnfolderBase]: For 10/12 co-relation queries the response was YES.
[2024-11-07 11:06:00,139 INFO  L196   CegarLoopForPetriNet]: Found error trace
[2024-11-07 11:06:00,140 INFO  L204   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 11:06:00,140 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] ===
[2024-11-07 11:06:00,141 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 11:06:00,141 INFO  L85        PathProgramCache]: Analyzing trace with hash -579051419, now seen corresponding path program 1 times
[2024-11-07 11:06:00,141 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 11:06:00,141 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022732351]
[2024-11-07 11:06:00,142 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 11:06:00,142 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 11:06:00,181 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 11:06:00,404 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 11:06:00,405 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 11:06:00,405 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022732351]
[2024-11-07 11:06:00,405 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022732351] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 11:06:00,405 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 11:06:00,406 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-07 11:06:00,406 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632362203]
[2024-11-07 11:06:00,407 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 11:06:00,412 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-07 11:06:00,415 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 11:06:00,434 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-07 11:06:00,434 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-07 11:06:00,485 INFO  L467   CegarLoopForPetriNet]: Number of universal loopers: 17 out of 69
[2024-11-07 11:06:00,489 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 69 transitions, 210 flow. Second operand  has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 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 11:06:00,490 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 11:06:00,490 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 69
[2024-11-07 11:06:00,493 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand