./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread/fib_unsafe-11.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/fib_unsafe-11.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', '5b16c68af06359cf155927d2335a825cd179e6a83a999e1ead7a6952268e92c6']
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/fib_unsafe-11.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 5b16c68af06359cf155927d2335a825cd179e6a83a999e1ead7a6952268e92c6
--- Real Ultimate output ---
This is Ultimate 0.3.0-?-4f9af40
[2024-11-07 11:04:41,464 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-07 11:04:41,541 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-07 11:04:41,549 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-07 11:04:41,550 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-07 11:04:41,583 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-07 11:04:41,584 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-07 11:04:41,584 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-07 11:04:41,584 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-07 11:04:41,584 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-07 11:04:41,584 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-07 11:04:41,584 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-07 11:04:41,584 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-07 11:04:41,585 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-07 11:04:41,585 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-07 11:04:41,585 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-07 11:04:41,585 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-07 11:04:41,585 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-07 11:04:41,585 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-07 11:04:41,585 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-07 11:04:41,585 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-07 11:04:41,585 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-07 11:04:41,585 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-07 11:04:41,585 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-07 11:04:41,585 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-11-07 11:04:41,585 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-07 11:04:41,586 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-07 11:04:41,586 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-07 11:04:41,586 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-07 11:04:41,586 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-07 11:04:41,586 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-07 11:04:41,586 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-07 11:04:41,588 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-07 11:04:41,589 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-07 11:04:41,589 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-07 11:04:41,590 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-07 11:04:41,590 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-07 11:04:41,590 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-07 11:04:41,590 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-07 11:04:41,590 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-07 11:04:41,590 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-07 11:04:41,590 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-07 11:04:41,590 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 -> 5b16c68af06359cf155927d2335a825cd179e6a83a999e1ead7a6952268e92c6
[2024-11-07 11:04:41,898 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-07 11:04:41,908 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-07 11:04:41,910 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-07 11:04:41,911 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-07 11:04:41,911 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-07 11:04:41,912 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread/fib_unsafe-11.i
[2024-11-07 11:04:43,182 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-11-07 11:04:43,469 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-07 11:04:43,470 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread/fib_unsafe-11.i
[2024-11-07 11:04:43,485 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ed055bfc3/62a0aab9c4024c108c7442a9039f583b/FLAGe316265ea
[2024-11-07 11:04:43,505 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ed055bfc3/62a0aab9c4024c108c7442a9039f583b
[2024-11-07 11:04:43,507 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-07 11:04:43,510 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-07 11:04:43,512 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-07 11:04:43,513 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-07 11:04:43,516 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-07 11:04:43,517 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:04:43" (1/1) ...
[2024-11-07 11:04:43,518 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25c94435 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:04:43, skipping insertion in model container
[2024-11-07 11:04:43,518 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:04:43" (1/1) ...
[2024-11-07 11:04:43,555 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-07 11:04:43,855 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/fib_unsafe-11.i[30243,30256]
[2024-11-07 11:04:43,880 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-07 11:04:43,889 INFO L200 MainTranslator]: Completed pre-run
[2024-11-07 11:04:43,939 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/fib_unsafe-11.i[30243,30256]
[2024-11-07 11:04:43,949 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-07 11:04:43,987 INFO L204 MainTranslator]: Completed translation
[2024-11-07 11:04:43,989 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:04:43 WrapperNode
[2024-11-07 11:04:43,989 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-07 11:04:43,990 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-07 11:04:43,990 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-07 11:04:43,991 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-07 11:04:43,996 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:04:43" (1/1) ...
[2024-11-07 11:04:44,012 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:04:43" (1/1) ...
[2024-11-07 11:04:44,031 INFO L138 Inliner]: procedures = 164, calls = 20, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 66
[2024-11-07 11:04:44,031 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-07 11:04:44,032 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-07 11:04:44,032 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-07 11:04:44,032 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-07 11:04:44,039 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:04:43" (1/1) ...
[2024-11-07 11:04:44,040 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:04:43" (1/1) ...
[2024-11-07 11:04:44,043 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:04:43" (1/1) ...
[2024-11-07 11:04:44,062 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-11-07 11:04:44,065 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:04:43" (1/1) ...
[2024-11-07 11:04:44,066 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:04:43" (1/1) ...
[2024-11-07 11:04:44,073 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:04:43" (1/1) ...
[2024-11-07 11:04:44,076 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:04:43" (1/1) ...
[2024-11-07 11:04:44,079 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:04:43" (1/1) ...
[2024-11-07 11:04:44,081 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:04:43" (1/1) ...
[2024-11-07 11:04:44,083 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-07 11:04:44,087 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-07 11:04:44,087 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-07 11:04:44,087 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-07 11:04:44,088 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:04:43" (1/1) ...
[2024-11-07 11:04:44,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-07 11:04:44,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 11:04:44,118 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 11:04:44,125 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 11:04:44,144 INFO L130 BoogieDeclarations]: Found specification of procedure t1
[2024-11-07 11:04:44,145 INFO L138 BoogieDeclarations]: Found implementation of procedure t1
[2024-11-07 11:04:44,145 INFO L130 BoogieDeclarations]: Found specification of procedure t2
[2024-11-07 11:04:44,145 INFO L138 BoogieDeclarations]: Found implementation of procedure t2
[2024-11-07 11:04:44,145 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2024-11-07 11:04:44,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-07 11:04:44,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-07 11:04:44,146 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2024-11-07 11:04:44,146 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-07 11:04:44,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-07 11:04:44,148 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 11:04:44,254 INFO L238 CfgBuilder]: Building ICFG
[2024-11-07 11:04:44,255 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-07 11:04:44,383 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program.
[2024-11-07 11:04:44,383 INFO L287 CfgBuilder]: Performing block encoding
[2024-11-07 11:04:44,489 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-07 11:04:44,490 INFO L316 CfgBuilder]: Removed 3 assume(true) statements.
[2024-11-07 11:04:44,490 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:04:44 BoogieIcfgContainer
[2024-11-07 11:04:44,490 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-07 11:04:44,494 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-07 11:04:44,495 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-07 11:04:44,499 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-07 11:04:44,500 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 11:04:43" (1/3) ...
[2024-11-07 11:04:44,500 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65364b04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:04:44, skipping insertion in model container
[2024-11-07 11:04:44,500 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:04:43" (2/3) ...
[2024-11-07 11:04:44,500 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65364b04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:04:44, skipping insertion in model container
[2024-11-07 11:04:44,501 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:04:44" (3/3) ...
[2024-11-07 11:04:44,502 INFO L112 eAbstractionObserver]: Analyzing ICFG fib_unsafe-11.i
[2024-11-07 11:04:44,516 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-07 11:04:44,517 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-07 11:04:44,517 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2024-11-07 11:04:44,555 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2024-11-07 11:04:44,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 32 places, 29 transitions, 66 flow
[2024-11-07 11:04:44,633 INFO L124 PetriNetUnfolderBase]: 4/27 cut-off events.
[2024-11-07 11:04:44,635 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-11-07 11:04:44,639 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34 conditions, 27 events. 4/27 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 27 event pairs, 0 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 24. Up to 2 conditions per place.
[2024-11-07 11:04:44,640 INFO L82 GeneralOperation]: Start removeDead. Operand has 32 places, 29 transitions, 66 flow
[2024-11-07 11:04:44,642 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 30 places, 27 transitions, 60 flow
[2024-11-07 11:04:44,648 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-07 11:04:44,661 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;@4d806c51, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-07 11:04:44,661 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations.
[2024-11-07 11:04:44,670 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2024-11-07 11:04:44,670 INFO L124 PetriNetUnfolderBase]: 4/25 cut-off events.
[2024-11-07 11:04:44,671 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-11-07 11:04:44,671 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 11:04:44,671 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 11:04:44,672 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-11-07 11:04:44,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 11:04:44,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1327058361, now seen corresponding path program 1 times
[2024-11-07 11:04:44,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 11:04:44,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787461069]
[2024-11-07 11:04:44,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 11:04:44,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 11:04:44,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 11:04:44,901 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 11:04:44,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 11:04:44,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787461069]
[2024-11-07 11:04:44,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787461069] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 11:04:44,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 11:04:44,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-07 11:04:44,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648966388]
[2024-11-07 11:04:44,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 11:04:44,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-07 11:04:44,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 11:04:44,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-07 11:04:44,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-07 11:04:44,937 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 29
[2024-11-07 11:04:44,941 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 27 transitions, 60 flow. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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 11:04:44,941 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 11:04:44,941 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 29
[2024-11-07 11:04:44,942 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 11:04:45,074 INFO L124 PetriNetUnfolderBase]: 115/223 cut-off events.
[2024-11-07 11:04:45,074 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES.
[2024-11-07 11:04:45,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 412 conditions, 223 events. 115/223 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 691 event pairs, 20 based on Foata normal form. 9/209 useless extension candidates. Maximal degree in co-relation 398. Up to 118 conditions per place.
[2024-11-07 11:04:45,078 INFO L140 encePairwiseOnDemand]: 25/29 looper letters, 20 selfloop transitions, 2 changer transitions 1/33 dead transitions.
[2024-11-07 11:04:45,080 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 33 transitions, 118 flow
[2024-11-07 11:04:45,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-07 11:04:45,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-11-07 11:04:45,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 61 transitions.
[2024-11-07 11:04:45,095 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7011494252873564
[2024-11-07 11:04:45,096 INFO L175 Difference]: Start difference. First operand has 30 places, 27 transitions, 60 flow. Second operand 3 states and 61 transitions.
[2024-11-07 11:04:45,097 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 33 transitions, 118 flow
[2024-11-07 11:04:45,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 33 transitions, 116 flow, removed 0 selfloop flow, removed 2 redundant places.
[2024-11-07 11:04:45,105 INFO L231 Difference]: Finished difference. Result has 31 places, 26 transitions, 66 flow
[2024-11-07 11:04:45,109 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=66, PETRI_PLACES=31, PETRI_TRANSITIONS=26}
[2024-11-07 11:04:45,112 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 1 predicate places.
[2024-11-07 11:04:45,113 INFO L471 AbstractCegarLoop]: Abstraction has has 31 places, 26 transitions, 66 flow
[2024-11-07 11:04:45,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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 11:04:45,113 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 11:04:45,114 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 11:04:45,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-07 11:04:45,114 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-11-07 11:04:45,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 11:04:45,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1785420741, now seen corresponding path program 1 times
[2024-11-07 11:04:45,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 11:04:45,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69252290]
[2024-11-07 11:04:45,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 11:04:45,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 11:04:45,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 11:04:45,298 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 11:04:45,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 11:04:45,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69252290]
[2024-11-07 11:04:45,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69252290] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-07 11:04:45,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [678775379]
[2024-11-07 11:04:45,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 11:04:45,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 11:04:45,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 11:04:45,302 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-07 11:04:45,304 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-07 11:04:45,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 11:04:45,400 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-07 11:04:45,404 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-07 11:04:45,434 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 11:04:45,436 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-07 11:04:45,459 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 11:04:45,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [678775379] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-07 11:04:45,460 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-07 11:04:45,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7
[2024-11-07 11:04:45,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245544433]
[2024-11-07 11:04:45,462 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-07 11:04:45,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-07 11:04:45,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 11:04:45,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-07 11:04:45,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42
[2024-11-07 11:04:45,464 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 29
[2024-11-07 11:04:45,464 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 26 transitions, 66 flow. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 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 11:04:45,465 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 11:04:45,465 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 29
[2024-11-07 11:04:45,465 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 11:04:45,597 INFO L124 PetriNetUnfolderBase]: 151/277 cut-off events.
[2024-11-07 11:04:45,601 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES.
[2024-11-07 11:04:45,602 INFO L83 FinitePrefix]: Finished finitePrefix Result has 584 conditions, 277 events. 151/277 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 799 event pairs, 20 based on Foata normal form. 0/254 useless extension candidates. Maximal degree in co-relation 569. Up to 91 conditions per place.
[2024-11-07 11:04:45,606 INFO L140 encePairwiseOnDemand]: 26/29 looper letters, 38 selfloop transitions, 5 changer transitions 0/53 dead transitions.
[2024-11-07 11:04:45,607 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 53 transitions, 212 flow
[2024-11-07 11:04:45,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-07 11:04:45,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2024-11-07 11:04:45,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 118 transitions.
[2024-11-07 11:04:45,609 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6781609195402298
[2024-11-07 11:04:45,609 INFO L175 Difference]: Start difference. First operand has 31 places, 26 transitions, 66 flow. Second operand 6 states and 118 transitions.
[2024-11-07 11:04:45,610 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 53 transitions, 212 flow
[2024-11-07 11:04:45,610 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 53 transitions, 210 flow, removed 0 selfloop flow, removed 1 redundant places.
[2024-11-07 11:04:45,611 INFO L231 Difference]: Finished difference. Result has 37 places, 29 transitions, 100 flow
[2024-11-07 11:04:45,613 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=100, PETRI_PLACES=37, PETRI_TRANSITIONS=29}
[2024-11-07 11:04:45,614 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 7 predicate places.
[2024-11-07 11:04:45,614 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 29 transitions, 100 flow
[2024-11-07 11:04:45,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 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 11:04:45,614 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 11:04:45,615 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 11:04:45,632 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-07 11:04:45,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 11:04:45,816 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-11-07 11:04:45,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 11:04:45,816 INFO L85 PathProgramCache]: Analyzing trace with hash 1099178439, now seen corresponding path program 2 times
[2024-11-07 11:04:45,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 11:04:45,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674375333]
[2024-11-07 11:04:45,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 11:04:45,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 11:04:45,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 11:04:45,961 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 11:04:45,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 11:04:45,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674375333]
[2024-11-07 11:04:45,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674375333] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-07 11:04:45,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [476913579]
[2024-11-07 11:04:45,962 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-07 11:04:45,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 11:04:45,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 11:04:45,965 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-07 11:04:45,966 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-07 11:04:46,043 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-07 11:04:46,043 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-07 11:04:46,044 INFO L255 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-07 11:04:46,045 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-07 11:04:46,069 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 11:04:46,069 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-07 11:04:46,142 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 11:04:46,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [476913579] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-07 11:04:46,142 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-07 11:04:46,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13
[2024-11-07 11:04:46,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143781398]
[2024-11-07 11:04:46,142 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-07 11:04:46,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2024-11-07 11:04:46,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 11:04:46,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2024-11-07 11:04:46,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156
[2024-11-07 11:04:46,144 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 29
[2024-11-07 11:04:46,144 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 29 transitions, 100 flow. Second operand has 13 states, 13 states have (on average 13.538461538461538) internal successors, (176), 13 states have internal predecessors, (176), 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 11:04:46,144 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 11:04:46,148 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 29
[2024-11-07 11:04:46,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 11:04:46,368 INFO L124 PetriNetUnfolderBase]: 259/439 cut-off events.
[2024-11-07 11:04:46,372 INFO L125 PetriNetUnfolderBase]: For 207/207 co-relation queries the response was YES.
[2024-11-07 11:04:46,374 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1110 conditions, 439 events. 259/439 cut-off events. For 207/207 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1196 event pairs, 20 based on Foata normal form. 54/479 useless extension candidates. Maximal degree in co-relation 1091. Up to 109 conditions per place.
[2024-11-07 11:04:46,378 INFO L140 encePairwiseOnDemand]: 26/29 looper letters, 74 selfloop transitions, 11 changer transitions 0/95 dead transitions.
[2024-11-07 11:04:46,381 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 95 transitions, 426 flow
[2024-11-07 11:04:46,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2024-11-07 11:04:46,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states.
[2024-11-07 11:04:46,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 235 transitions.
[2024-11-07 11:04:46,384 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6752873563218391
[2024-11-07 11:04:46,386 INFO L175 Difference]: Start difference. First operand has 37 places, 29 transitions, 100 flow. Second operand 12 states and 235 transitions.
[2024-11-07 11:04:46,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 95 transitions, 426 flow
[2024-11-07 11:04:46,389 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 95 transitions, 412 flow, removed 6 selfloop flow, removed 1 redundant places.
[2024-11-07 11:04:46,391 INFO L231 Difference]: Finished difference. Result has 53 places, 35 transitions, 170 flow
[2024-11-07 11:04:46,391 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=170, PETRI_PLACES=53, PETRI_TRANSITIONS=35}
[2024-11-07 11:04:46,392 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 23 predicate places.
[2024-11-07 11:04:46,392 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 35 transitions, 170 flow
[2024-11-07 11:04:46,392 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 13.538461538461538) internal successors, (176), 13 states have internal predecessors, (176), 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 11:04:46,392 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 11:04:46,393 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 11:04:46,410 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-11-07 11:04:46,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 11:04:46,597 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-11-07 11:04:46,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 11:04:46,597 INFO L85 PathProgramCache]: Analyzing trace with hash -299417337, now seen corresponding path program 3 times
[2024-11-07 11:04:46,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 11:04:46,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088057064]
[2024-11-07 11:04:46,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 11:04:46,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 11:04:46,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 11:04:46,872 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 11:04:46,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 11:04:46,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088057064]
[2024-11-07 11:04:46,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088057064] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-07 11:04:46,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1282763105]
[2024-11-07 11:04:46,873 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-11-07 11:04:46,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 11:04:46,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 11:04:46,875 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-07 11:04:46,889 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-07 11:04:46,970 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s)
[2024-11-07 11:04:46,971 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-07 11:04:46,973 INFO L255 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 12 conjuncts are in the unsatisfiable core
[2024-11-07 11:04:46,974 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-07 11:04:47,016 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 11:04:47,017 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-07 11:04:47,277 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 11:04:47,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1282763105] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-07 11:04:47,280 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-07 11:04:47,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 25
[2024-11-07 11:04:47,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272381509]
[2024-11-07 11:04:47,280 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-07 11:04:47,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states
[2024-11-07 11:04:47,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 11:04:47,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants.
[2024-11-07 11:04:47,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600
[2024-11-07 11:04:47,283 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 29
[2024-11-07 11:04:47,286 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 35 transitions, 170 flow. Second operand has 25 states, 25 states have (on average 13.28) internal successors, (332), 25 states have internal predecessors, (332), 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 11:04:47,286 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 11:04:47,286 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 29
[2024-11-07 11:04:47,286 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 11:04:47,664 INFO L124 PetriNetUnfolderBase]: 475/763 cut-off events.
[2024-11-07 11:04:47,664 INFO L125 PetriNetUnfolderBase]: For 4203/4203 co-relation queries the response was YES.
[2024-11-07 11:04:47,668 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2242 conditions, 763 events. 475/763 cut-off events. For 4203/4203 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1994 event pairs, 20 based on Foata normal form. 108/857 useless extension candidates. Maximal degree in co-relation 2216. Up to 190 conditions per place.
[2024-11-07 11:04:47,671 INFO L140 encePairwiseOnDemand]: 26/29 looper letters, 146 selfloop transitions, 23 changer transitions 0/179 dead transitions.
[2024-11-07 11:04:47,672 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 179 transitions, 868 flow
[2024-11-07 11:04:47,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states.
[2024-11-07 11:04:47,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states.
[2024-11-07 11:04:47,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 469 transitions.
[2024-11-07 11:04:47,674 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6738505747126436
[2024-11-07 11:04:47,674 INFO L175 Difference]: Start difference. First operand has 53 places, 35 transitions, 170 flow. Second operand 24 states and 469 transitions.
[2024-11-07 11:04:47,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 179 transitions, 868 flow
[2024-11-07 11:04:47,688 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 179 transitions, 796 flow, removed 31 selfloop flow, removed 5 redundant places.
[2024-11-07 11:04:47,691 INFO L231 Difference]: Finished difference. Result has 83 places, 47 transitions, 290 flow
[2024-11-07 11:04:47,692 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=290, PETRI_PLACES=83, PETRI_TRANSITIONS=47}
[2024-11-07 11:04:47,693 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 53 predicate places.
[2024-11-07 11:04:47,694 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 47 transitions, 290 flow
[2024-11-07 11:04:47,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 13.28) internal successors, (332), 25 states have internal predecessors, (332), 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 11:04:47,694 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 11:04:47,694 INFO L204 CegarLoopForPetriNet]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 11:04:47,712 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-11-07 11:04:47,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 11:04:47,897 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-11-07 11:04:47,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 11:04:47,897 INFO L85 PathProgramCache]: Analyzing trace with hash -1108070521, now seen corresponding path program 4 times
[2024-11-07 11:04:47,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 11:04:47,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209168204]
[2024-11-07 11:04:47,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 11:04:47,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 11:04:47,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 11:04:48,516 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 11:04:48,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 11:04:48,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209168204]
[2024-11-07 11:04:48,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209168204] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-07 11:04:48,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1114128171]
[2024-11-07 11:04:48,517 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2024-11-07 11:04:48,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 11:04:48,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 11:04:48,519 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-07 11:04:48,522 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-11-07 11:04:48,617 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2024-11-07 11:04:48,617 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-07 11:04:48,619 INFO L255 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 24 conjuncts are in the unsatisfiable core
[2024-11-07 11:04:48,621 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-07 11:04:48,688 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 11:04:48,688 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-07 11:04:49,057 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 11:04:49,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1114128171] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-07 11:04:49,057 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-07 11:04:49,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 27
[2024-11-07 11:04:49,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881671995]
[2024-11-07 11:04:49,058 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-07 11:04:49,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states
[2024-11-07 11:04:49,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 11:04:49,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants.
[2024-11-07 11:04:49,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702
[2024-11-07 11:04:49,062 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 29
[2024-11-07 11:04:49,062 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 47 transitions, 290 flow. Second operand has 27 states, 27 states have (on average 13.296296296296296) internal successors, (359), 27 states have internal predecessors, (359), 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 11:04:49,063 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 11:04:49,063 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 29
[2024-11-07 11:04:49,063 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 11:04:49,440 INFO L124 PetriNetUnfolderBase]: 511/817 cut-off events.
[2024-11-07 11:04:49,440 INFO L125 PetriNetUnfolderBase]: For 5553/5553 co-relation queries the response was YES.
[2024-11-07 11:04:49,443 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2524 conditions, 817 events. 511/817 cut-off events. For 5553/5553 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2126 event pairs, 20 based on Foata normal form. 18/821 useless extension candidates. Maximal degree in co-relation 2486. Up to 172 conditions per place.
[2024-11-07 11:04:49,447 INFO L140 encePairwiseOnDemand]: 26/29 looper letters, 158 selfloop transitions, 25 changer transitions 0/193 dead transitions.
[2024-11-07 11:04:49,447 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 193 transitions, 960 flow
[2024-11-07 11:04:49,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states.
[2024-11-07 11:04:49,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states.
[2024-11-07 11:04:49,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 497 transitions.
[2024-11-07 11:04:49,449 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6591511936339522
[2024-11-07 11:04:49,449 INFO L175 Difference]: Start difference. First operand has 83 places, 47 transitions, 290 flow. Second operand 26 states and 497 transitions.
[2024-11-07 11:04:49,449 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 193 transitions, 960 flow
[2024-11-07 11:04:49,463 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 193 transitions, 860 flow, removed 39 selfloop flow, removed 11 redundant places.
[2024-11-07 11:04:49,466 INFO L231 Difference]: Finished difference. Result has 99 places, 49 transitions, 266 flow
[2024-11-07 11:04:49,467 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=266, PETRI_PLACES=99, PETRI_TRANSITIONS=49}
[2024-11-07 11:04:49,469 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 69 predicate places.
[2024-11-07 11:04:49,469 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 49 transitions, 266 flow
[2024-11-07 11:04:49,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 13.296296296296296) internal successors, (359), 27 states have internal predecessors, (359), 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 11:04:49,470 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 11:04:49,470 INFO L204 CegarLoopForPetriNet]: trace histogram [24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 11:04:49,487 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2024-11-07 11:04:49,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 11:04:49,673 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-11-07 11:04:49,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 11:04:49,673 INFO L85 PathProgramCache]: Analyzing trace with hash -518058169, now seen corresponding path program 5 times
[2024-11-07 11:04:49,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 11:04:49,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470567922]
[2024-11-07 11:04:49,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 11:04:49,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 11:04:49,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 11:04:51,716 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 11:04:51,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 11:04:51,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470567922]
[2024-11-07 11:04:51,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470567922] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-07 11:04:51,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1789338984]
[2024-11-07 11:04:51,716 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
[2024-11-07 11:04:51,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 11:04:51,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 11:04:51,719 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-07 11:04:51,721 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-11-07 11:04:51,810 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 13 check-sat command(s)
[2024-11-07 11:04:51,810 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-07 11:04:51,813 INFO L255 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 83 conjuncts are in the unsatisfiable core
[2024-11-07 11:04:51,815 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-07 11:04:53,484 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 253 proven. 47 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 11:04:53,484 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-07 11:04:55,371 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 11:04:55,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1789338984] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-07 11:04:55,371 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-07 11:04:55,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31, 31] total 90
[2024-11-07 11:04:55,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010962079]
[2024-11-07 11:04:55,372 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-07 11:04:55,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 91 states
[2024-11-07 11:04:55,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 11:04:55,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 91 interpolants.
[2024-11-07 11:04:55,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1169, Invalid=7021, Unknown=0, NotChecked=0, Total=8190
[2024-11-07 11:04:55,504 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 29
[2024-11-07 11:04:55,505 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 49 transitions, 266 flow. Second operand has 91 states, 91 states have (on average 6.186813186813187) internal successors, (563), 91 states have internal predecessors, (563), 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 11:04:55,505 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 11:04:55,505 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 29
[2024-11-07 11:04:55,505 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 11:05:42,118 INFO L124 PetriNetUnfolderBase]: 36367/59927 cut-off events.
[2024-11-07 11:05:42,118 INFO L125 PetriNetUnfolderBase]: For 206294/206294 co-relation queries the response was YES.
[2024-11-07 11:05:42,332 INFO L83 FinitePrefix]: Finished finitePrefix Result has 159087 conditions, 59927 events. 36367/59927 cut-off events. For 206294/206294 co-relation queries the response was YES. Maximal size of possible extension queue 574. Compared 415508 event pairs, 106 based on Foata normal form. 0/59389 useless extension candidates. Maximal degree in co-relation 159045. Up to 7644 conditions per place.
[2024-11-07 11:05:42,610 INFO L140 encePairwiseOnDemand]: 18/29 looper letters, 943 selfloop transitions, 1465 changer transitions 1141/3552 dead transitions.
[2024-11-07 11:05:42,610 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 383 places, 3552 transitions, 22725 flow
[2024-11-07 11:05:42,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 285 states.
[2024-11-07 11:05:42,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 285 states.
[2024-11-07 11:05:42,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 3819 transitions.
[2024-11-07 11:05:42,627 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.46206896551724136
[2024-11-07 11:05:42,628 INFO L175 Difference]: Start difference. First operand has 99 places, 49 transitions, 266 flow. Second operand 285 states and 3819 transitions.
[2024-11-07 11:05:42,628 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 383 places, 3552 transitions, 22725 flow
[2024-11-07 11:05:42,996 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 360 places, 3552 transitions, 19631 flow, removed 378 selfloop flow, removed 23 redundant places.
[2024-11-07 11:05:43,029 INFO L231 Difference]: Finished difference. Result has 470 places, 1606 transitions, 9720 flow
[2024-11-07 11:05:43,030 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=285, PETRI_FLOW=9720, PETRI_PLACES=470, PETRI_TRANSITIONS=1606}
[2024-11-07 11:05:43,031 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 440 predicate places.
[2024-11-07 11:05:43,031 INFO L471 AbstractCegarLoop]: Abstraction has has 470 places, 1606 transitions, 9720 flow
[2024-11-07 11:05:43,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 91 states, 91 states have (on average 6.186813186813187) internal successors, (563), 91 states have internal predecessors, (563), 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 11:05:43,032 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 11:05:43,032 INFO L204 CegarLoopForPetriNet]: trace histogram [24, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 11:05:43,048 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0
[2024-11-07 11:05:43,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 11:05:43,233 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-11-07 11:05:43,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 11:05:43,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1712367833, now seen corresponding path program 1 times
[2024-11-07 11:05:43,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 11:05:43,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234567116]
[2024-11-07 11:05:43,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 11:05:43,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 11:05:43,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 11:05:45,092 INFO L134 CoverageAnalysis]: Checked inductivity of 302 backedges. 0 proven. 302 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 11:05:45,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 11:05:45,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234567116]
[2024-11-07 11:05:45,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234567116] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-07 11:05:45,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [789577816]
[2024-11-07 11:05:45,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 11:05:45,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 11:05:45,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 11:05:45,098 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-07 11:05:45,099 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2024-11-07 11:05:45,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 11:05:45,187 INFO L255 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 85 conjuncts are in the unsatisfiable core
[2024-11-07 11:05:45,189 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-07 11:05:46,776 INFO L134 CoverageAnalysis]: Checked inductivity of 302 backedges. 253 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 11:05:46,777 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-07 11:05:48,676 INFO L134 CoverageAnalysis]: Checked inductivity of 302 backedges. 0 proven. 302 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 11:05:48,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [789577816] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-07 11:05:48,676 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-07 11:05:48,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 97
[2024-11-07 11:05:48,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818506951]
[2024-11-07 11:05:48,677 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-07 11:05:48,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 98 states
[2024-11-07 11:05:48,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 11:05:48,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants.
[2024-11-07 11:05:48,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1232, Invalid=8274, Unknown=0, NotChecked=0, Total=9506
[2024-11-07 11:05:49,194 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 29
[2024-11-07 11:05:49,195 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 470 places, 1606 transitions, 9720 flow. Second operand has 98 states, 98 states have (on average 6.224489795918367) internal successors, (610), 98 states have internal predecessors, (610), 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 11:05:49,195 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 11:05:49,195 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 29
[2024-11-07 11:05:49,195 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand