./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/unroll-5.wvr.c --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/weaver/unroll-5.wvr.c', '-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', '624ca078114fa3c35bb1960efece3c50cba0d03b97522c4936fd5f6e5d783f29']
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/weaver/unroll-5.wvr.c -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 624ca078114fa3c35bb1960efece3c50cba0d03b97522c4936fd5f6e5d783f29
--- Real Ultimate output ---
This is Ultimate 0.3.0-?-4f9af40
[2024-11-07 11:33:27,274 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-07 11:33:27,339 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-07 11:33:27,342 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-07 11:33:27,342 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-07 11:33:27,356 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-07 11:33:27,357 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-07 11:33:27,357 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-07 11:33:27,357 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-07 11:33:27,357 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-07 11:33:27,357 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-07 11:33:27,357 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-07 11:33:27,358 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-07 11:33:27,358 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-07 11:33:27,358 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-07 11:33:27,358 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-07 11:33:27,358 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-07 11:33:27,358 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-07 11:33:27,358 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-07 11:33:27,358 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-07 11:33:27,358 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-07 11:33:27,358 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-07 11:33:27,359 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-07 11:33:27,359 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-07 11:33:27,359 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-11-07 11:33:27,359 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-07 11:33:27,359 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-07 11:33:27,359 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-07 11:33:27,359 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-07 11:33:27,359 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-07 11:33:27,359 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-07 11:33:27,359 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-07 11:33:27,359 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-07 11:33:27,360 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-07 11:33:27,360 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-07 11:33:27,360 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-07 11:33:27,360 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-07 11:33:27,360 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-07 11:33:27,360 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-07 11:33:27,360 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-07 11:33:27,360 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-07 11:33:27,360 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-07 11:33:27,360 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 -> 624ca078114fa3c35bb1960efece3c50cba0d03b97522c4936fd5f6e5d783f29
[2024-11-07 11:33:27,640 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-07 11:33:27,648 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-07 11:33:27,650 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-07 11:33:27,651 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-07 11:33:27,651 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-07 11:33:27,653 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/unroll-5.wvr.c
[2024-11-07 11:33:28,938 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-11-07 11:33:29,155 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-07 11:33:29,156 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/unroll-5.wvr.c
[2024-11-07 11:33:29,162 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/232bede7f/0165109b20d84bae96acecf1c4108d26/FLAG2255acb65
[2024-11-07 11:33:29,175 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/232bede7f/0165109b20d84bae96acecf1c4108d26
[2024-11-07 11:33:29,177 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-07 11:33:29,178 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-07 11:33:29,181 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-07 11:33:29,181 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-07 11:33:29,184 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-07 11:33:29,184 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:33:29" (1/1) ...
[2024-11-07 11:33:29,185 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67e0c8e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:33:29, skipping insertion in model container
[2024-11-07 11:33:29,185 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:33:29" (1/1) ...
[2024-11-07 11:33:29,197 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-07 11:33:29,335 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/weaver/unroll-5.wvr.c[2670,2683]
[2024-11-07 11:33:29,341 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-07 11:33:29,353 INFO L200 MainTranslator]: Completed pre-run
[2024-11-07 11:33:29,369 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/weaver/unroll-5.wvr.c[2670,2683]
[2024-11-07 11:33:29,371 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-07 11:33:29,381 INFO L204 MainTranslator]: Completed translation
[2024-11-07 11:33:29,381 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:33:29 WrapperNode
[2024-11-07 11:33:29,381 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-07 11:33:29,382 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-07 11:33:29,382 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-07 11:33:29,382 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-07 11:33:29,386 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:33:29" (1/1) ...
[2024-11-07 11:33:29,391 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:33:29" (1/1) ...
[2024-11-07 11:33:29,405 INFO L138 Inliner]: procedures = 23, calls = 28, calls flagged for inlining = 14, calls inlined = 14, statements flattened = 157
[2024-11-07 11:33:29,405 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-07 11:33:29,405 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-07 11:33:29,406 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-07 11:33:29,406 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-07 11:33:29,412 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:33:29" (1/1) ...
[2024-11-07 11:33:29,412 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:33:29" (1/1) ...
[2024-11-07 11:33:29,414 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:33:29" (1/1) ...
[2024-11-07 11:33:29,428 INFO L175 MemorySlicer]: Split 9 memory accesses to 2 slices as follows [2, 7]. 78 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1].
[2024-11-07 11:33:29,428 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:33:29" (1/1) ...
[2024-11-07 11:33:29,428 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:33:29" (1/1) ...
[2024-11-07 11:33:29,448 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:33:29" (1/1) ...
[2024-11-07 11:33:29,459 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:33:29" (1/1) ...
[2024-11-07 11:33:29,460 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:33:29" (1/1) ...
[2024-11-07 11:33:29,461 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:33:29" (1/1) ...
[2024-11-07 11:33:29,464 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-07 11:33:29,465 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-07 11:33:29,465 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-07 11:33:29,465 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-07 11:33:29,467 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:33:29" (1/1) ...
[2024-11-07 11:33:29,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-07 11:33:29,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 11:33:29,515 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 11:33:29,524 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 11:33:29,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-07 11:33:29,555 INFO L130 BoogieDeclarations]: Found specification of procedure thread1
[2024-11-07 11:33:29,555 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1
[2024-11-07 11:33:29,555 INFO L130 BoogieDeclarations]: Found specification of procedure thread2
[2024-11-07 11:33:29,555 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2
[2024-11-07 11:33:29,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-07 11:33:29,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1
[2024-11-07 11:33:29,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0
[2024-11-07 11:33:29,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1
[2024-11-07 11:33:29,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2024-11-07 11:33:29,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-07 11:33:29,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-07 11:33:29,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0
[2024-11-07 11:33:29,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1
[2024-11-07 11:33:29,556 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 11:33:29,690 INFO L238 CfgBuilder]: Building ICFG
[2024-11-07 11:33:29,696 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-07 11:33:29,980 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program.
[2024-11-07 11:33:29,980 INFO L287 CfgBuilder]: Performing block encoding
[2024-11-07 11:33:30,202 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-07 11:33:30,202 INFO L316 CfgBuilder]: Removed 3 assume(true) statements.
[2024-11-07 11:33:30,203 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:33:30 BoogieIcfgContainer
[2024-11-07 11:33:30,203 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-07 11:33:30,205 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-07 11:33:30,205 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-07 11:33:30,210 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-07 11:33:30,210 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 11:33:29" (1/3) ...
[2024-11-07 11:33:30,210 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56a47dbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:33:30, skipping insertion in model container
[2024-11-07 11:33:30,211 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:33:29" (2/3) ...
[2024-11-07 11:33:30,211 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56a47dbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:33:30, skipping insertion in model container
[2024-11-07 11:33:30,212 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:33:30" (3/3) ...
[2024-11-07 11:33:30,213 INFO L112 eAbstractionObserver]: Analyzing ICFG unroll-5.wvr.c
[2024-11-07 11:33:30,223 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-07 11:33:30,224 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-07 11:33:30,224 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2024-11-07 11:33:30,264 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions.
[2024-11-07 11:33:30,298 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 24 places, 20 transitions, 54 flow
[2024-11-07 11:33:30,340 INFO L124 PetriNetUnfolderBase]: 3/18 cut-off events.
[2024-11-07 11:33:30,342 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES.
[2024-11-07 11:33:30,343 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27 conditions, 18 events. 3/18 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 10 event pairs, 0 based on Foata normal form. 0/14 useless extension candidates. Maximal degree in co-relation 11. Up to 2 conditions per place.
[2024-11-07 11:33:30,344 INFO L82 GeneralOperation]: Start removeDead. Operand has 24 places, 20 transitions, 54 flow
[2024-11-07 11:33:30,349 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 21 places, 17 transitions, 46 flow
[2024-11-07 11:33:30,357 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-07 11:33:30,373 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;@71a04ebe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-07 11:33:30,374 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations.
[2024-11-07 11:33:30,388 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2024-11-07 11:33:30,388 INFO L124 PetriNetUnfolderBase]: 3/16 cut-off events.
[2024-11-07 11:33:30,388 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES.
[2024-11-07 11:33:30,389 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 11:33:30,389 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 11:33:30,389 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 11:33:30,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 11:33:30,393 INFO L85 PathProgramCache]: Analyzing trace with hash 1224019720, now seen corresponding path program 1 times
[2024-11-07 11:33:30,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 11:33:30,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290436942]
[2024-11-07 11:33:30,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 11:33:30,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 11:33:30,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 11:33:30,578 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 11:33:30,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 11:33:30,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290436942]
[2024-11-07 11:33:30,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290436942] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 11:33:30,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 11:33:30,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-07 11:33:30,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578475678]
[2024-11-07 11:33:30,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 11:33:30,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-07 11:33:30,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 11:33:30,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-07 11:33:30,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-07 11:33:30,601 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 20
[2024-11-07 11:33:30,603 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 17 transitions, 46 flow. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 11:33:30,603 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 11:33:30,603 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 20
[2024-11-07 11:33:30,603 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 11:33:30,658 INFO L124 PetriNetUnfolderBase]: 69/125 cut-off events.
[2024-11-07 11:33:30,658 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES.
[2024-11-07 11:33:30,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 273 conditions, 125 events. 69/125 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 322 event pairs, 22 based on Foata normal form. 1/95 useless extension candidates. Maximal degree in co-relation 220. Up to 72 conditions per place.
[2024-11-07 11:33:30,660 INFO L140 encePairwiseOnDemand]: 16/20 looper letters, 23 selfloop transitions, 3 changer transitions 1/28 dead transitions.
[2024-11-07 11:33:30,660 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 28 transitions, 131 flow
[2024-11-07 11:33:30,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-07 11:33:30,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-11-07 11:33:30,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 37 transitions.
[2024-11-07 11:33:30,671 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6166666666666667
[2024-11-07 11:33:30,672 INFO L175 Difference]: Start difference. First operand has 21 places, 17 transitions, 46 flow. Second operand 3 states and 37 transitions.
[2024-11-07 11:33:30,672 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 28 transitions, 131 flow
[2024-11-07 11:33:30,679 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 28 transitions, 117 flow, removed 0 selfloop flow, removed 4 redundant places.
[2024-11-07 11:33:30,680 INFO L231 Difference]: Finished difference. Result has 20 places, 19 transitions, 57 flow
[2024-11-07 11:33:30,682 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=57, PETRI_PLACES=20, PETRI_TRANSITIONS=19}
[2024-11-07 11:33:30,684 INFO L277 CegarLoopForPetriNet]: 21 programPoint places, -1 predicate places.
[2024-11-07 11:33:30,685 INFO L471 AbstractCegarLoop]: Abstraction has has 20 places, 19 transitions, 57 flow
[2024-11-07 11:33:30,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 11:33:30,685 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 11:33:30,685 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 11:33:30,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-07 11:33:30,685 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 11:33:30,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 11:33:30,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1539169625, now seen corresponding path program 1 times
[2024-11-07 11:33:30,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 11:33:30,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584231108]
[2024-11-07 11:33:30,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 11:33:30,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 11:33:30,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 11:33:30,791 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-07 11:33:30,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 11:33:30,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584231108]
[2024-11-07 11:33:30,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584231108] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 11:33:30,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 11:33:30,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-07 11:33:30,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826422479]
[2024-11-07 11:33:30,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 11:33:30,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-07 11:33:30,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 11:33:30,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-07 11:33:30,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-07 11:33:30,793 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 20
[2024-11-07 11:33:30,794 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 19 transitions, 57 flow. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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 11:33:30,794 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 11:33:30,794 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 20
[2024-11-07 11:33:30,794 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 11:33:30,840 INFO L124 PetriNetUnfolderBase]: 69/126 cut-off events.
[2024-11-07 11:33:30,841 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES.
[2024-11-07 11:33:30,841 INFO L83 FinitePrefix]: Finished finitePrefix Result has 308 conditions, 126 events. 69/126 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 301 event pairs, 44 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 110. Up to 125 conditions per place.
[2024-11-07 11:33:30,842 INFO L140 encePairwiseOnDemand]: 17/20 looper letters, 17 selfloop transitions, 2 changer transitions 0/20 dead transitions.
[2024-11-07 11:33:30,842 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 20 transitions, 97 flow
[2024-11-07 11:33:30,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-07 11:33:30,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-11-07 11:33:30,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 27 transitions.
[2024-11-07 11:33:30,843 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.45
[2024-11-07 11:33:30,843 INFO L175 Difference]: Start difference. First operand has 20 places, 19 transitions, 57 flow. Second operand 3 states and 27 transitions.
[2024-11-07 11:33:30,844 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 20 transitions, 97 flow
[2024-11-07 11:33:30,844 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 20 transitions, 94 flow, removed 0 selfloop flow, removed 1 redundant places.
[2024-11-07 11:33:30,845 INFO L231 Difference]: Finished difference. Result has 22 places, 20 transitions, 66 flow
[2024-11-07 11:33:30,845 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=66, PETRI_PLACES=22, PETRI_TRANSITIONS=20}
[2024-11-07 11:33:30,845 INFO L277 CegarLoopForPetriNet]: 21 programPoint places, 1 predicate places.
[2024-11-07 11:33:30,845 INFO L471 AbstractCegarLoop]: Abstraction has has 22 places, 20 transitions, 66 flow
[2024-11-07 11:33:30,845 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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 11:33:30,846 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 11:33:30,846 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 11:33:30,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-07 11:33:30,846 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 11:33:30,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 11:33:30,846 INFO L85 PathProgramCache]: Analyzing trace with hash -1379179667, now seen corresponding path program 1 times
[2024-11-07 11:33:30,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 11:33:30,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693689011]
[2024-11-07 11:33:30,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 11:33:30,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 11:33:30,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 11:33:31,066 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-07 11:33:31,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 11:33:31,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693689011]
[2024-11-07 11:33:31,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693689011] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-07 11:33:31,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1307510977]
[2024-11-07 11:33:31,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 11:33:31,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 11:33:31,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 11:33:31,071 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 11:33:31,083 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 11:33:31,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 11:33:31,156 INFO L255 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-07 11:33:31,158 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-07 11:33:31,193 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-07 11:33:31,194 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-07 11:33:31,240 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-07 11:33:31,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1307510977] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-07 11:33:31,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences.
[2024-11-07 11:33:31,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 5] total 6
[2024-11-07 11:33:31,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203816703]
[2024-11-07 11:33:31,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 11:33:31,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-07 11:33:31,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 11:33:31,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-07 11:33:31,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-11-07 11:33:31,242 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 20
[2024-11-07 11:33:31,243 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 20 transitions, 66 flow. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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 11:33:31,243 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 11:33:31,243 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 20
[2024-11-07 11:33:31,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 11:33:31,334 INFO L124 PetriNetUnfolderBase]: 76/138 cut-off events.
[2024-11-07 11:33:31,335 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES.
[2024-11-07 11:33:31,336 INFO L83 FinitePrefix]: Finished finitePrefix Result has 330 conditions, 138 events. 76/138 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 365 event pairs, 22 based on Foata normal form. 5/142 useless extension candidates. Maximal degree in co-relation 317. Up to 71 conditions per place.
[2024-11-07 11:33:31,337 INFO L140 encePairwiseOnDemand]: 16/20 looper letters, 28 selfloop transitions, 4 changer transitions 1/34 dead transitions.
[2024-11-07 11:33:31,338 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 34 transitions, 168 flow
[2024-11-07 11:33:31,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-07 11:33:31,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-11-07 11:33:31,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 45 transitions.
[2024-11-07 11:33:31,339 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5625
[2024-11-07 11:33:31,339 INFO L175 Difference]: Start difference. First operand has 22 places, 20 transitions, 66 flow. Second operand 4 states and 45 transitions.
[2024-11-07 11:33:31,339 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 34 transitions, 168 flow
[2024-11-07 11:33:31,339 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 34 transitions, 164 flow, removed 1 selfloop flow, removed 1 redundant places.
[2024-11-07 11:33:31,341 INFO L231 Difference]: Finished difference. Result has 26 places, 22 transitions, 88 flow
[2024-11-07 11:33:31,341 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=88, PETRI_PLACES=26, PETRI_TRANSITIONS=22}
[2024-11-07 11:33:31,341 INFO L277 CegarLoopForPetriNet]: 21 programPoint places, 5 predicate places.
[2024-11-07 11:33:31,342 INFO L471 AbstractCegarLoop]: Abstraction has has 26 places, 22 transitions, 88 flow
[2024-11-07 11:33:31,342 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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 11:33:31,342 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 11:33:31,342 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 11:33:31,354 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 11:33:31,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 11:33:31,544 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 11:33:31,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 11:33:31,545 INFO L85 PathProgramCache]: Analyzing trace with hash 2145685361, now seen corresponding path program 1 times
[2024-11-07 11:33:31,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 11:33:31,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367085277]
[2024-11-07 11:33:31,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 11:33:31,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 11:33:31,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 11:33:31,672 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-07 11:33:31,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 11:33:31,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367085277]
[2024-11-07 11:33:31,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367085277] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 11:33:31,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 11:33:31,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-07 11:33:31,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779497875]
[2024-11-07 11:33:31,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 11:33:31,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-07 11:33:31,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 11:33:31,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-07 11:33:31,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-07 11:33:31,675 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 20
[2024-11-07 11:33:31,675 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 22 transitions, 88 flow. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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 11:33:31,675 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 11:33:31,675 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 20
[2024-11-07 11:33:31,675 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 11:33:31,797 INFO L124 PetriNetUnfolderBase]: 85/167 cut-off events.
[2024-11-07 11:33:31,797 INFO L125 PetriNetUnfolderBase]: For 136/136 co-relation queries the response was YES.
[2024-11-07 11:33:31,798 INFO L83 FinitePrefix]: Finished finitePrefix Result has 461 conditions, 167 events. 85/167 cut-off events. For 136/136 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 542 event pairs, 24 based on Foata normal form. 9/175 useless extension candidates. Maximal degree in co-relation 442. Up to 93 conditions per place.
[2024-11-07 11:33:31,799 INFO L140 encePairwiseOnDemand]: 15/20 looper letters, 31 selfloop transitions, 4 changer transitions 7/43 dead transitions.
[2024-11-07 11:33:31,799 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 43 transitions, 243 flow
[2024-11-07 11:33:31,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-07 11:33:31,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2024-11-07 11:33:31,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 53 transitions.
[2024-11-07 11:33:31,800 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.53
[2024-11-07 11:33:31,800 INFO L175 Difference]: Start difference. First operand has 26 places, 22 transitions, 88 flow. Second operand 5 states and 53 transitions.
[2024-11-07 11:33:31,800 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 43 transitions, 243 flow
[2024-11-07 11:33:31,801 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 43 transitions, 238 flow, removed 1 selfloop flow, removed 1 redundant places.
[2024-11-07 11:33:31,802 INFO L231 Difference]: Finished difference. Result has 32 places, 24 transitions, 115 flow
[2024-11-07 11:33:31,802 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=115, PETRI_PLACES=32, PETRI_TRANSITIONS=24}
[2024-11-07 11:33:31,802 INFO L277 CegarLoopForPetriNet]: 21 programPoint places, 11 predicate places.
[2024-11-07 11:33:31,803 INFO L471 AbstractCegarLoop]: Abstraction has has 32 places, 24 transitions, 115 flow
[2024-11-07 11:33:31,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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 11:33:31,803 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 11:33:31,803 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 11:33:31,803 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-07 11:33:31,803 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 11:33:31,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 11:33:31,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1095045627, now seen corresponding path program 2 times
[2024-11-07 11:33:31,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 11:33:31,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477279758]
[2024-11-07 11:33:31,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 11:33:31,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 11:33:31,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 11:33:31,900 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-07 11:33:31,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 11:33:31,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477279758]
[2024-11-07 11:33:31,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477279758] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-07 11:33:31,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1561979121]
[2024-11-07 11:33:31,901 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-07 11:33:31,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 11:33:31,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 11:33:31,907 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 11:33:31,918 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 11:33:31,985 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-07 11:33:31,985 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-07 11:33:31,986 INFO L255 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-07 11:33:31,987 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-07 11:33:32,008 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-07 11:33:32,008 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-07 11:33:32,056 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-07 11:33:32,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1561979121] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-07 11:33:32,057 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-07 11:33:32,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8
[2024-11-07 11:33:32,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944860045]
[2024-11-07 11:33:32,057 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-07 11:33:32,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-07 11:33:32,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 11:33:32,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-07 11:33:32,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2024-11-07 11:33:32,058 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 20
[2024-11-07 11:33:32,058 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 24 transitions, 115 flow. Second operand has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 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 11:33:32,059 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 11:33:32,059 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 20
[2024-11-07 11:33:32,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 11:33:32,191 INFO L124 PetriNetUnfolderBase]: 108/212 cut-off events.
[2024-11-07 11:33:32,192 INFO L125 PetriNetUnfolderBase]: For 235/235 co-relation queries the response was YES.
[2024-11-07 11:33:32,194 INFO L83 FinitePrefix]: Finished finitePrefix Result has 724 conditions, 212 events. 108/212 cut-off events. For 235/235 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 705 event pairs, 38 based on Foata normal form. 5/216 useless extension candidates. Maximal degree in co-relation 702. Up to 123 conditions per place.
[2024-11-07 11:33:32,197 INFO L140 encePairwiseOnDemand]: 15/20 looper letters, 31 selfloop transitions, 11 changer transitions 5/48 dead transitions.
[2024-11-07 11:33:32,197 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 48 transitions, 324 flow
[2024-11-07 11:33:32,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-07 11:33:32,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2024-11-07 11:33:32,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 54 transitions.
[2024-11-07 11:33:32,198 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.54
[2024-11-07 11:33:32,199 INFO L175 Difference]: Start difference. First operand has 32 places, 24 transitions, 115 flow. Second operand 5 states and 54 transitions.
[2024-11-07 11:33:32,199 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 48 transitions, 324 flow
[2024-11-07 11:33:32,200 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 48 transitions, 306 flow, removed 6 selfloop flow, removed 2 redundant places.
[2024-11-07 11:33:32,202 INFO L231 Difference]: Finished difference. Result has 35 places, 31 transitions, 194 flow
[2024-11-07 11:33:32,203 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=194, PETRI_PLACES=35, PETRI_TRANSITIONS=31}
[2024-11-07 11:33:32,203 INFO L277 CegarLoopForPetriNet]: 21 programPoint places, 14 predicate places.
[2024-11-07 11:33:32,204 INFO L471 AbstractCegarLoop]: Abstraction has has 35 places, 31 transitions, 194 flow
[2024-11-07 11:33:32,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 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 11:33:32,204 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 11:33:32,204 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 11:33:32,216 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2024-11-07 11:33:32,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 11:33:32,409 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 11:33:32,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 11:33:32,409 INFO L85 PathProgramCache]: Analyzing trace with hash -944125937, now seen corresponding path program 2 times
[2024-11-07 11:33:32,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 11:33:32,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958111408]
[2024-11-07 11:33:32,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 11:33:32,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 11:33:32,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 11:33:32,516 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-07 11:33:32,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 11:33:32,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958111408]
[2024-11-07 11:33:32,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958111408] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 11:33:32,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 11:33:32,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-07 11:33:32,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521582328]
[2024-11-07 11:33:32,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 11:33:32,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-07 11:33:32,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 11:33:32,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-07 11:33:32,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-07 11:33:32,518 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 20
[2024-11-07 11:33:32,518 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 31 transitions, 194 flow. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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 11:33:32,518 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 11:33:32,518 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 20
[2024-11-07 11:33:32,518 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 11:33:32,585 INFO L124 PetriNetUnfolderBase]: 114/222 cut-off events.
[2024-11-07 11:33:32,585 INFO L125 PetriNetUnfolderBase]: For 413/413 co-relation queries the response was YES.
[2024-11-07 11:33:32,586 INFO L83 FinitePrefix]: Finished finitePrefix Result has 855 conditions, 222 events. 114/222 cut-off events. For 413/413 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 790 event pairs, 34 based on Foata normal form. 4/225 useless extension candidates. Maximal degree in co-relation 832. Up to 134 conditions per place.
[2024-11-07 11:33:32,590 INFO L140 encePairwiseOnDemand]: 16/20 looper letters, 34 selfloop transitions, 10 changer transitions 0/45 dead transitions.
[2024-11-07 11:33:32,590 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 45 transitions, 357 flow
[2024-11-07 11:33:32,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-07 11:33:32,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-11-07 11:33:32,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 44 transitions.
[2024-11-07 11:33:32,591 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.55
[2024-11-07 11:33:32,591 INFO L175 Difference]: Start difference. First operand has 35 places, 31 transitions, 194 flow. Second operand 4 states and 44 transitions.
[2024-11-07 11:33:32,592 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 45 transitions, 357 flow
[2024-11-07 11:33:32,593 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 45 transitions, 355 flow, removed 1 selfloop flow, removed 0 redundant places.
[2024-11-07 11:33:32,596 INFO L231 Difference]: Finished difference. Result has 40 places, 34 transitions, 256 flow
[2024-11-07 11:33:32,596 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=256, PETRI_PLACES=40, PETRI_TRANSITIONS=34}
[2024-11-07 11:33:32,597 INFO L277 CegarLoopForPetriNet]: 21 programPoint places, 19 predicate places.
[2024-11-07 11:33:32,597 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 34 transitions, 256 flow
[2024-11-07 11:33:32,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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 11:33:32,597 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 11:33:32,597 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 11:33:32,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-07 11:33:32,597 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 11:33:32,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 11:33:32,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1632477155, now seen corresponding path program 3 times
[2024-11-07 11:33:32,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 11:33:32,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339465929]
[2024-11-07 11:33:32,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 11:33:32,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 11:33:32,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 11:33:32,671 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-07 11:33:32,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 11:33:32,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339465929]
[2024-11-07 11:33:32,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339465929] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 11:33:32,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 11:33:32,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-07 11:33:32,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187427308]
[2024-11-07 11:33:32,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 11:33:32,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-07 11:33:32,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 11:33:32,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-07 11:33:32,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-07 11:33:32,672 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 20
[2024-11-07 11:33:32,672 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 34 transitions, 256 flow. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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 11:33:32,672 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 11:33:32,672 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 20
[2024-11-07 11:33:32,672 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 11:33:32,747 INFO L124 PetriNetUnfolderBase]: 115/218 cut-off events.
[2024-11-07 11:33:32,747 INFO L125 PetriNetUnfolderBase]: For 528/528 co-relation queries the response was YES.
[2024-11-07 11:33:32,748 INFO L83 FinitePrefix]: Finished finitePrefix Result has 944 conditions, 218 events. 115/218 cut-off events. For 528/528 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 735 event pairs, 33 based on Foata normal form. 4/221 useless extension candidates. Maximal degree in co-relation 918. Up to 133 conditions per place.
[2024-11-07 11:33:32,749 INFO L140 encePairwiseOnDemand]: 16/20 looper letters, 32 selfloop transitions, 9 changer transitions 3/45 dead transitions.
[2024-11-07 11:33:32,749 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 45 transitions, 399 flow
[2024-11-07 11:33:32,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-07 11:33:32,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-11-07 11:33:32,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 44 transitions.
[2024-11-07 11:33:32,752 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.55
[2024-11-07 11:33:32,752 INFO L175 Difference]: Start difference. First operand has 40 places, 34 transitions, 256 flow. Second operand 4 states and 44 transitions.
[2024-11-07 11:33:32,752 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 45 transitions, 399 flow
[2024-11-07 11:33:32,754 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 45 transitions, 384 flow, removed 3 selfloop flow, removed 1 redundant places.
[2024-11-07 11:33:32,755 INFO L231 Difference]: Finished difference. Result has 44 places, 35 transitions, 285 flow
[2024-11-07 11:33:32,755 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=245, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=285, PETRI_PLACES=44, PETRI_TRANSITIONS=35}
[2024-11-07 11:33:32,757 INFO L277 CegarLoopForPetriNet]: 21 programPoint places, 23 predicate places.
[2024-11-07 11:33:32,757 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 35 transitions, 285 flow
[2024-11-07 11:33:32,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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 11:33:32,758 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 11:33:32,758 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 11:33:32,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-07 11:33:32,758 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-11-07 11:33:32,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 11:33:32,761 INFO L85 PathProgramCache]: Analyzing trace with hash 1547063205, now seen corresponding path program 3 times
[2024-11-07 11:33:32,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 11:33:32,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457064080]
[2024-11-07 11:33:32,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 11:33:32,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 11:33:32,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 11:33:32,860 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-07 11:33:32,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 11:33:32,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457064080]
[2024-11-07 11:33:32,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457064080] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 11:33:32,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 11:33:32,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-07 11:33:32,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302215242]
[2024-11-07 11:33:32,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 11:33:32,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-07 11:33:32,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 11:33:32,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-07 11:33:32,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-07 11:33:32,863 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 20
[2024-11-07 11:33:32,863 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 35 transitions, 285 flow. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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 11:33:32,864 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 11:33:32,864 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 20
[2024-11-07 11:33:32,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 11:33:32,933 INFO L124 PetriNetUnfolderBase]: 100/184 cut-off events.
[2024-11-07 11:33:32,933 INFO L125 PetriNetUnfolderBase]: For 598/598 co-relation queries the response was YES.
[2024-11-07 11:33:32,935 INFO L83 FinitePrefix]: Finished finitePrefix Result has 830 conditions, 184 events. 100/184 cut-off events. For 598/598 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 534 event pairs, 31 based on Foata normal form. 2/185 useless extension candidates. Maximal degree in co-relation 802. Up to 136 conditions per place.
[2024-11-07 11:33:32,936 INFO L140 encePairwiseOnDemand]: 15/20 looper letters, 30 selfloop transitions, 11 changer transitions 2/44 dead transitions.
[2024-11-07 11:33:32,936 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 44 transitions, 413 flow
[2024-11-07 11:33:32,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-07 11:33:32,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2024-11-07 11:33:32,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 44 transitions.
[2024-11-07 11:33:32,937 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.44
[2024-11-07 11:33:32,937 INFO L175 Difference]: Start difference. First operand has 44 places, 35 transitions, 285 flow. Second operand 5 states and 44 transitions.
[2024-11-07 11:33:32,937 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 44 transitions, 413 flow
[2024-11-07 11:33:32,939 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 44 transitions, 381 flow, removed 6 selfloop flow, removed 4 redundant places.
[2024-11-07 11:33:32,940 INFO L231 Difference]: Finished difference. Result has 45 places, 36 transitions, 301 flow
[2024-11-07 11:33:32,940 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=255, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=301, PETRI_PLACES=45, PETRI_TRANSITIONS=36}
[2024-11-07 11:33:32,940 INFO L277 CegarLoopForPetriNet]: 21 programPoint places, 24 predicate places.
[2024-11-07 11:33:32,940 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 36 transitions, 301 flow
[2024-11-07 11:33:32,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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 11:33:32,941 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 11:33:32,941 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 11:33:32,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-11-07 11:33:32,941 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-11-07 11:33:32,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 11:33:32,941 INFO L85 PathProgramCache]: Analyzing trace with hash 663248543, now seen corresponding path program 4 times
[2024-11-07 11:33:32,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 11:33:32,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523833897]
[2024-11-07 11:33:32,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 11:33:32,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 11:33:32,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 11:33:33,032 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-07 11:33:33,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 11:33:33,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523833897]
[2024-11-07 11:33:33,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523833897] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 11:33:33,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 11:33:33,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-07 11:33:33,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614482975]
[2024-11-07 11:33:33,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 11:33:33,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-07 11:33:33,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 11:33:33,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-07 11:33:33,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-07 11:33:33,035 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 20
[2024-11-07 11:33:33,035 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 36 transitions, 301 flow. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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 11:33:33,035 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 11:33:33,035 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 20
[2024-11-07 11:33:33,035 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 11:33:33,242 INFO L124 PetriNetUnfolderBase]: 94/170 cut-off events.
[2024-11-07 11:33:33,244 INFO L125 PetriNetUnfolderBase]: For 673/673 co-relation queries the response was YES.
[2024-11-07 11:33:33,245 INFO L83 FinitePrefix]: Finished finitePrefix Result has 828 conditions, 170 events. 94/170 cut-off events. For 673/673 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 481 event pairs, 29 based on Foata normal form. 4/173 useless extension candidates. Maximal degree in co-relation 800. Up to 122 conditions per place.
[2024-11-07 11:33:33,248 INFO L140 encePairwiseOnDemand]: 15/20 looper letters, 30 selfloop transitions, 9 changer transitions 4/44 dead transitions.
[2024-11-07 11:33:33,248 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 44 transitions, 427 flow
[2024-11-07 11:33:33,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-07 11:33:33,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2024-11-07 11:33:33,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 43 transitions.
[2024-11-07 11:33:33,253 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.43
[2024-11-07 11:33:33,253 INFO L175 Difference]: Start difference. First operand has 45 places, 36 transitions, 301 flow. Second operand 5 states and 43 transitions.
[2024-11-07 11:33:33,254 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 44 transitions, 427 flow
[2024-11-07 11:33:33,257 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 44 transitions, 413 flow, removed 2 selfloop flow, removed 1 redundant places.
[2024-11-07 11:33:33,258 INFO L231 Difference]: Finished difference. Result has 50 places, 36 transitions, 323 flow
[2024-11-07 11:33:33,258 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=288, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=323, PETRI_PLACES=50, PETRI_TRANSITIONS=36}
[2024-11-07 11:33:33,259 INFO L277 CegarLoopForPetriNet]: 21 programPoint places, 29 predicate places.
[2024-11-07 11:33:33,259 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 36 transitions, 323 flow
[2024-11-07 11:33:33,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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 11:33:33,259 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 11:33:33,260 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 11:33:33,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-11-07 11:33:33,260 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-11-07 11:33:33,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 11:33:33,261 INFO L85 PathProgramCache]: Analyzing trace with hash -979150364, now seen corresponding path program 1 times
[2024-11-07 11:33:33,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 11:33:33,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031153691]
[2024-11-07 11:33:33,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 11:33:33,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 11:33:33,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 11:33:33,451 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-07 11:33:33,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 11:33:33,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031153691]
[2024-11-07 11:33:33,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031153691] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-07 11:33:33,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1210168181]
[2024-11-07 11:33:33,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 11:33:33,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 11:33:33,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 11:33:33,456 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 11:33:33,457 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 11:33:33,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 11:33:33,520 INFO L255 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 29 conjuncts are in the unsatisfiable core
[2024-11-07 11:33:33,525 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-07 11:33:33,604 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1
[2024-11-07 11:33:33,889 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 11:33:33,889 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-07 11:33:34,266 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 260 treesize of output 228
[2024-11-07 11:33:34,735 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-07 11:33:34,736 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 17 new quantified variables, introduced 45 case distinctions, treesize of input 3277 treesize of output 2301
[2024-11-07 11:34:26,858 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts.
[2024-11-07 11:35:08,806 WARN L672 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts.