./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/chl-word-symm.wvr.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for overflows
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/chl-word-symm.wvr.c', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-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 ! overflow) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '32bit', '--witnessprinter.graph.data.programhash', 'bf81f7b3bd1ceac2bf46c7c37f69effc0af9de17b18c7565156301fb49a6164e']
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/chl-word-symm.wvr.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-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 ! overflow) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bf81f7b3bd1ceac2bf46c7c37f69effc0af9de17b18c7565156301fb49a6164e
--- Real Ultimate output ---
This is Ultimate 0.3.0-?-4f9af40
[2024-11-07 23:37:55,638 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-07 23:37:55,693 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf
[2024-11-07 23:37:55,700 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-07 23:37:55,701 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-07 23:37:55,720 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-07 23:37:55,721 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-07 23:37:55,721 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-07 23:37:55,722 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-07 23:37:55,722 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-07 23:37:55,722 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-07 23:37:55,722 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-07 23:37:55,723 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-07 23:37:55,723 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-07 23:37:55,724 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-07 23:37:55,724 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-07 23:37:55,724 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-07 23:37:55,724 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-07 23:37:55,724 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-07 23:37:55,724 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-07 23:37:55,724 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-07 23:37:55,724 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-07 23:37:55,724 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-07 23:37:55,724 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-07 23:37:55,724 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-11-07 23:37:55,725 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME
[2024-11-07 23:37:55,725 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-11-07 23:37:55,725 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-07 23:37:55,725 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-07 23:37:55,725 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-07 23:37:55,725 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-07 23:37:55,725 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-07 23:37:55,725 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-07 23:37:55,725 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-07 23:37:55,726 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-07 23:37:55,726 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-07 23:37:55,726 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-07 23:37:55,726 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-07 23:37:55,726 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-07 23:37:55,727 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-07 23:37:55,727 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-07 23:37:55,727 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-07 23:37:55,727 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-07 23:37:55,727 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-07 23:37:55,727 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 ! overflow) )
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 -> bf81f7b3bd1ceac2bf46c7c37f69effc0af9de17b18c7565156301fb49a6164e
[2024-11-07 23:37:55,965 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-07 23:37:55,973 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-07 23:37:55,975 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-07 23:37:55,975 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-07 23:37:55,976 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-07 23:37:55,977 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-word-symm.wvr.c
[2024-11-07 23:37:57,062 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-11-07 23:37:57,276 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-07 23:37:57,278 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/chl-word-symm.wvr.c
[2024-11-07 23:37:57,286 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/69a1be87d/35c5d3bc111d4f34947fc468968c5862/FLAGafd460b24
[2024-11-07 23:37:57,299 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/69a1be87d/35c5d3bc111d4f34947fc468968c5862
[2024-11-07 23:37:57,303 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-07 23:37:57,304 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-07 23:37:57,305 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-07 23:37:57,305 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-07 23:37:57,308 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-07 23:37:57,308 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:37:57" (1/1) ...
[2024-11-07 23:37:57,310 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e879610 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:37:57, skipping insertion in model container
[2024-11-07 23:37:57,310 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:37:57" (1/1) ...
[2024-11-07 23:37:57,324 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-07 23:37:57,460 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-07 23:37:57,466 INFO L200 MainTranslator]: Completed pre-run
[2024-11-07 23:37:57,485 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-07 23:37:57,494 INFO L204 MainTranslator]: Completed translation
[2024-11-07 23:37:57,495 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:37:57 WrapperNode
[2024-11-07 23:37:57,495 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-07 23:37:57,496 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-07 23:37:57,496 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-07 23:37:57,496 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-07 23:37:57,500 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:37:57" (1/1) ...
[2024-11-07 23:37:57,505 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:37:57" (1/1) ...
[2024-11-07 23:37:57,522 INFO L138 Inliner]: procedures = 23, calls = 26, calls flagged for inlining = 10, calls inlined = 12, statements flattened = 129
[2024-11-07 23:37:57,523 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-07 23:37:57,524 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-07 23:37:57,524 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-07 23:37:57,524 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-07 23:37:57,530 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:37:57" (1/1) ...
[2024-11-07 23:37:57,530 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:37:57" (1/1) ...
[2024-11-07 23:37:57,532 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:37:57" (1/1) ...
[2024-11-07 23:37:57,547 INFO L175 MemorySlicer]: Split 12 memory accesses to 2 slices as follows [2, 10]. 83 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 2 writes are split as follows [0, 2].
[2024-11-07 23:37:57,547 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:37:57" (1/1) ...
[2024-11-07 23:37:57,547 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:37:57" (1/1) ...
[2024-11-07 23:37:57,552 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:37:57" (1/1) ...
[2024-11-07 23:37:57,558 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:37:57" (1/1) ...
[2024-11-07 23:37:57,560 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:37:57" (1/1) ...
[2024-11-07 23:37:57,561 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:37:57" (1/1) ...
[2024-11-07 23:37:57,562 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-07 23:37:57,564 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-07 23:37:57,564 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-07 23:37:57,564 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-07 23:37:57,564 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:37:57" (1/1) ...
[2024-11-07 23:37:57,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-07 23:37:57,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 23:37:57,589 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 23:37:57,591 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 23:37:57,609 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-07 23:37:57,609 INFO L130 BoogieDeclarations]: Found specification of procedure thread1
[2024-11-07 23:37:57,609 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1
[2024-11-07 23:37:57,609 INFO L130 BoogieDeclarations]: Found specification of procedure thread2
[2024-11-07 23:37:57,609 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2
[2024-11-07 23:37:57,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-07 23:37:57,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1
[2024-11-07 23:37:57,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0
[2024-11-07 23:37:57,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1
[2024-11-07 23:37:57,609 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2024-11-07 23:37:57,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-07 23:37:57,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-07 23:37:57,609 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0
[2024-11-07 23:37:57,609 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1
[2024-11-07 23:37:57,610 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 23:37:57,683 INFO L238 CfgBuilder]: Building ICFG
[2024-11-07 23:37:57,685 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-07 23:37:57,967 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program.
[2024-11-07 23:37:57,968 INFO L287 CfgBuilder]: Performing block encoding
[2024-11-07 23:37:58,150 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-07 23:37:58,152 INFO L316 CfgBuilder]: Removed 4 assume(true) statements.
[2024-11-07 23:37:58,152 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:37:58 BoogieIcfgContainer
[2024-11-07 23:37:58,152 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-07 23:37:58,154 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-07 23:37:58,154 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-07 23:37:58,158 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-07 23:37:58,158 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 11:37:57" (1/3) ...
[2024-11-07 23:37:58,159 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ef8556d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:37:58, skipping insertion in model container
[2024-11-07 23:37:58,159 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:37:57" (2/3) ...
[2024-11-07 23:37:58,160 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ef8556d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:37:58, skipping insertion in model container
[2024-11-07 23:37:58,160 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:37:58" (3/3) ...
[2024-11-07 23:37:58,161 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-word-symm.wvr.c
[2024-11-07 23:37:58,172 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-07 23:37:58,172 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations.
[2024-11-07 23:37:58,172 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2024-11-07 23:37:58,216 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions.
[2024-11-07 23:37:58,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 57 places, 60 transitions, 134 flow
[2024-11-07 23:37:58,269 INFO L124 PetriNetUnfolderBase]: 10/58 cut-off events.
[2024-11-07 23:37:58,272 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES.
[2024-11-07 23:37:58,301 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 58 events. 10/58 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 155 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 43. Up to 3 conditions per place.
[2024-11-07 23:37:58,301 INFO L82 GeneralOperation]: Start removeDead. Operand has 57 places, 60 transitions, 134 flow
[2024-11-07 23:37:58,303 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 53 places, 56 transitions, 121 flow
[2024-11-07 23:37:58,311 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-07 23:37:58,320 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;@7f8a6e57, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-07 23:37:58,322 INFO L334 AbstractCegarLoop]: Starting to check reachability of 22 error locations.
[2024-11-07 23:37:58,324 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2024-11-07 23:37:58,325 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events.
[2024-11-07 23:37:58,325 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-11-07 23:37:58,325 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 23:37:58,326 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1]
[2024-11-07 23:37:58,326 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] ===
[2024-11-07 23:37:58,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 23:37:58,330 INFO L85 PathProgramCache]: Analyzing trace with hash 586519, now seen corresponding path program 1 times
[2024-11-07 23:37:58,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 23:37:58,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532978639]
[2024-11-07 23:37:58,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:37:58,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 23:37:58,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:37:58,518 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 23:37:58,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 23:37:58,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532978639]
[2024-11-07 23:37:58,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532978639] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 23:37:58,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 23:37:58,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-07 23:37:58,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877747642]
[2024-11-07 23:37:58,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 23:37:58,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-07 23:37:58,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 23:37:58,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-07 23:37:58,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-07 23:37:58,572 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 60
[2024-11-07 23:37:58,574 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 56 transitions, 121 flow. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 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 23:37:58,574 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 23:37:58,574 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 60
[2024-11-07 23:37:58,575 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 23:37:58,777 INFO L124 PetriNetUnfolderBase]: 313/670 cut-off events.
[2024-11-07 23:37:58,778 INFO L125 PetriNetUnfolderBase]: For 27/27 co-relation queries the response was YES.
[2024-11-07 23:37:58,780 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1156 conditions, 670 events. 313/670 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 3573 event pairs, 182 based on Foata normal form. 2/471 useless extension candidates. Maximal degree in co-relation 1066. Up to 452 conditions per place.
[2024-11-07 23:37:58,783 INFO L140 encePairwiseOnDemand]: 49/60 looper letters, 35 selfloop transitions, 7 changer transitions 0/62 dead transitions.
[2024-11-07 23:37:58,783 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 62 transitions, 217 flow
[2024-11-07 23:37:58,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-07 23:37:58,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-11-07 23:37:58,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 134 transitions.
[2024-11-07 23:37:58,796 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5583333333333333
[2024-11-07 23:37:58,797 INFO L175 Difference]: Start difference. First operand has 53 places, 56 transitions, 121 flow. Second operand 4 states and 134 transitions.
[2024-11-07 23:37:58,797 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 62 transitions, 217 flow
[2024-11-07 23:37:58,801 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 62 transitions, 212 flow, removed 0 selfloop flow, removed 3 redundant places.
[2024-11-07 23:37:58,804 INFO L231 Difference]: Finished difference. Result has 56 places, 62 transitions, 176 flow
[2024-11-07 23:37:58,806 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=176, PETRI_PLACES=56, PETRI_TRANSITIONS=62}
[2024-11-07 23:37:58,808 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 3 predicate places.
[2024-11-07 23:37:58,808 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 62 transitions, 176 flow
[2024-11-07 23:37:58,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 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 23:37:58,808 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 23:37:58,808 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1]
[2024-11-07 23:37:58,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-07 23:37:58,808 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] ===
[2024-11-07 23:37:58,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 23:37:58,809 INFO L85 PathProgramCache]: Analyzing trace with hash 293700059, now seen corresponding path program 1 times
[2024-11-07 23:37:58,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 23:37:58,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900297843]
[2024-11-07 23:37:58,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:37:58,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 23:37:58,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:37:58,929 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 23:37:58,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 23:37:58,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900297843]
[2024-11-07 23:37:58,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900297843] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-07 23:37:58,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [276008078]
[2024-11-07 23:37:58,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:37:58,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 23:37:58,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 23:37:58,932 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 23:37:58,934 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 23:37:58,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:37:58,987 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-07 23:37:58,993 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-07 23:37:59,022 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 23:37:59,023 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-07 23:37:59,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [276008078] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 23:37:59,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-07 23:37:59,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6
[2024-11-07 23:37:59,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543793852]
[2024-11-07 23:37:59,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 23:37:59,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-07 23:37:59,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 23:37:59,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-07 23:37:59,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2024-11-07 23:37:59,038 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 60
[2024-11-07 23:37:59,039 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 62 transitions, 176 flow. Second operand has 6 states, 6 states have (on average 22.833333333333332) internal successors, (137), 6 states have internal predecessors, (137), 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 23:37:59,039 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 23:37:59,039 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 60
[2024-11-07 23:37:59,039 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 23:37:59,190 INFO L124 PetriNetUnfolderBase]: 313/668 cut-off events.
[2024-11-07 23:37:59,193 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES.
[2024-11-07 23:37:59,195 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1166 conditions, 668 events. 313/668 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 3543 event pairs, 182 based on Foata normal form. 2/472 useless extension candidates. Maximal degree in co-relation 1116. Up to 442 conditions per place.
[2024-11-07 23:37:59,200 INFO L140 encePairwiseOnDemand]: 51/60 looper letters, 28 selfloop transitions, 12 changer transitions 0/60 dead transitions.
[2024-11-07 23:37:59,200 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 60 transitions, 248 flow
[2024-11-07 23:37:59,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-07 23:37:59,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2024-11-07 23:37:59,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 174 transitions.
[2024-11-07 23:37:59,203 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.48333333333333334
[2024-11-07 23:37:59,203 INFO L175 Difference]: Start difference. First operand has 56 places, 62 transitions, 176 flow. Second operand 6 states and 174 transitions.
[2024-11-07 23:37:59,203 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 60 transitions, 248 flow
[2024-11-07 23:37:59,204 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 60 transitions, 248 flow, removed 0 selfloop flow, removed 0 redundant places.
[2024-11-07 23:37:59,205 INFO L231 Difference]: Finished difference. Result has 59 places, 60 transitions, 192 flow
[2024-11-07 23:37:59,205 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=192, PETRI_PLACES=59, PETRI_TRANSITIONS=60}
[2024-11-07 23:37:59,207 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 6 predicate places.
[2024-11-07 23:37:59,207 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 60 transitions, 192 flow
[2024-11-07 23:37:59,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.833333333333332) internal successors, (137), 6 states have internal predecessors, (137), 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 23:37:59,208 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 23:37:59,208 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1]
[2024-11-07 23:37:59,222 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2024-11-07 23:37:59,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 23:37:59,409 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] ===
[2024-11-07 23:37:59,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 23:37:59,409 INFO L85 PathProgramCache]: Analyzing trace with hash 514767822, now seen corresponding path program 1 times
[2024-11-07 23:37:59,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 23:37:59,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706969698]
[2024-11-07 23:37:59,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:37:59,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 23:37:59,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:37:59,499 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 23:37:59,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 23:37:59,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706969698]
[2024-11-07 23:37:59,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706969698] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-07 23:37:59,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1192469367]
[2024-11-07 23:37:59,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:37:59,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 23:37:59,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 23:37:59,502 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 23:37:59,505 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 23:37:59,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:37:59,564 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-07 23:37:59,565 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-07 23:37:59,591 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 23:37:59,591 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-07 23:37:59,623 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 23:37:59,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1192469367] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-07 23:37:59,623 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-07 23:37:59,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10
[2024-11-07 23:37:59,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495691072]
[2024-11-07 23:37:59,623 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-07 23:37:59,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2024-11-07 23:37:59,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 23:37:59,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2024-11-07 23:37:59,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132
[2024-11-07 23:37:59,642 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 60
[2024-11-07 23:37:59,643 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 60 transitions, 192 flow. Second operand has 12 states, 12 states have (on average 23.083333333333332) internal successors, (277), 12 states have internal predecessors, (277), 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 23:37:59,643 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 23:37:59,643 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 60
[2024-11-07 23:37:59,643 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 23:37:59,824 INFO L124 PetriNetUnfolderBase]: 319/692 cut-off events.
[2024-11-07 23:37:59,824 INFO L125 PetriNetUnfolderBase]: For 57/57 co-relation queries the response was YES.
[2024-11-07 23:37:59,825 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1260 conditions, 692 events. 319/692 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 3767 event pairs, 182 based on Foata normal form. 6/499 useless extension candidates. Maximal degree in co-relation 1118. Up to 453 conditions per place.
[2024-11-07 23:37:59,828 INFO L140 encePairwiseOnDemand]: 51/60 looper letters, 33 selfloop transitions, 25 changer transitions 0/78 dead transitions.
[2024-11-07 23:37:59,828 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 78 transitions, 422 flow
[2024-11-07 23:37:59,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2024-11-07 23:37:59,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states.
[2024-11-07 23:37:59,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 284 transitions.
[2024-11-07 23:37:59,830 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.47333333333333333
[2024-11-07 23:37:59,830 INFO L175 Difference]: Start difference. First operand has 59 places, 60 transitions, 192 flow. Second operand 10 states and 284 transitions.
[2024-11-07 23:37:59,830 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 78 transitions, 422 flow
[2024-11-07 23:37:59,831 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 78 transitions, 364 flow, removed 12 selfloop flow, removed 5 redundant places.
[2024-11-07 23:37:59,832 INFO L231 Difference]: Finished difference. Result has 66 places, 78 transitions, 332 flow
[2024-11-07 23:37:59,832 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=332, PETRI_PLACES=66, PETRI_TRANSITIONS=78}
[2024-11-07 23:37:59,833 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 13 predicate places.
[2024-11-07 23:37:59,833 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 78 transitions, 332 flow
[2024-11-07 23:37:59,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 23.083333333333332) internal successors, (277), 12 states have internal predecessors, (277), 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 23:37:59,833 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 23:37:59,833 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 23:37:59,846 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-11-07 23:38:00,037 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 23:38:00,038 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] ===
[2024-11-07 23:38:00,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 23:38:00,039 INFO L85 PathProgramCache]: Analyzing trace with hash -2054500936, now seen corresponding path program 1 times
[2024-11-07 23:38:00,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 23:38:00,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684119474]
[2024-11-07 23:38:00,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:38:00,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 23:38:00,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:38:00,097 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 23:38:00,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 23:38:00,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684119474]
[2024-11-07 23:38:00,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684119474] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 23:38:00,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 23:38:00,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-07 23:38:00,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539951000]
[2024-11-07 23:38:00,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 23:38:00,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-07 23:38:00,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 23:38:00,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-07 23:38:00,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-07 23:38:00,105 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 60
[2024-11-07 23:38:00,106 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 78 transitions, 332 flow. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 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 23:38:00,106 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 23:38:00,106 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 60
[2024-11-07 23:38:00,106 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 23:38:00,262 INFO L124 PetriNetUnfolderBase]: 558/1013 cut-off events.
[2024-11-07 23:38:00,262 INFO L125 PetriNetUnfolderBase]: For 82/82 co-relation queries the response was YES.
[2024-11-07 23:38:00,263 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1978 conditions, 1013 events. 558/1013 cut-off events. For 82/82 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 4838 event pairs, 254 based on Foata normal form. 18/769 useless extension candidates. Maximal degree in co-relation 1911. Up to 633 conditions per place.
[2024-11-07 23:38:00,266 INFO L140 encePairwiseOnDemand]: 54/60 looper letters, 87 selfloop transitions, 4 changer transitions 0/110 dead transitions.
[2024-11-07 23:38:00,266 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 110 transitions, 582 flow
[2024-11-07 23:38:00,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-07 23:38:00,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-11-07 23:38:00,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 161 transitions.
[2024-11-07 23:38:00,267 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6708333333333333
[2024-11-07 23:38:00,267 INFO L175 Difference]: Start difference. First operand has 66 places, 78 transitions, 332 flow. Second operand 4 states and 161 transitions.
[2024-11-07 23:38:00,267 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 110 transitions, 582 flow
[2024-11-07 23:38:00,268 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 110 transitions, 558 flow, removed 6 selfloop flow, removed 2 redundant places.
[2024-11-07 23:38:00,270 INFO L231 Difference]: Finished difference. Result has 69 places, 81 transitions, 337 flow
[2024-11-07 23:38:00,270 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=337, PETRI_PLACES=69, PETRI_TRANSITIONS=81}
[2024-11-07 23:38:00,270 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 16 predicate places.
[2024-11-07 23:38:00,270 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 81 transitions, 337 flow
[2024-11-07 23:38:00,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 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 23:38:00,270 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 23:38:00,271 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 23:38:00,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-07 23:38:00,271 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] ===
[2024-11-07 23:38:00,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 23:38:00,271 INFO L85 PathProgramCache]: Analyzing trace with hash 735012805, now seen corresponding path program 1 times
[2024-11-07 23:38:00,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 23:38:00,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762303170]
[2024-11-07 23:38:00,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:38:00,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 23:38:00,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:38:00,368 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 23:38:00,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 23:38:00,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762303170]
[2024-11-07 23:38:00,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762303170] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 23:38:00,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 23:38:00,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-07 23:38:00,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950490983]
[2024-11-07 23:38:00,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 23:38:00,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-07 23:38:00,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 23:38:00,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-07 23:38:00,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-07 23:38:00,387 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 60
[2024-11-07 23:38:00,387 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 81 transitions, 337 flow. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 5 states have internal predecessors, (118), 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 23:38:00,387 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 23:38:00,387 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 60
[2024-11-07 23:38:00,387 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 23:38:00,605 INFO L124 PetriNetUnfolderBase]: 1206/2270 cut-off events.
[2024-11-07 23:38:00,605 INFO L125 PetriNetUnfolderBase]: For 371/371 co-relation queries the response was YES.
[2024-11-07 23:38:00,608 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4500 conditions, 2270 events. 1206/2270 cut-off events. For 371/371 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 13536 event pairs, 680 based on Foata normal form. 16/1764 useless extension candidates. Maximal degree in co-relation 4433. Up to 862 conditions per place.
[2024-11-07 23:38:00,614 INFO L140 encePairwiseOnDemand]: 52/60 looper letters, 81 selfloop transitions, 10 changer transitions 0/110 dead transitions.
[2024-11-07 23:38:00,614 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 110 transitions, 595 flow
[2024-11-07 23:38:00,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-07 23:38:00,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2024-11-07 23:38:00,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 178 transitions.
[2024-11-07 23:38:00,615 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5933333333333334
[2024-11-07 23:38:00,615 INFO L175 Difference]: Start difference. First operand has 69 places, 81 transitions, 337 flow. Second operand 5 states and 178 transitions.
[2024-11-07 23:38:00,616 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 110 transitions, 595 flow
[2024-11-07 23:38:00,618 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 110 transitions, 590 flow, removed 0 selfloop flow, removed 1 redundant places.
[2024-11-07 23:38:00,619 INFO L231 Difference]: Finished difference. Result has 74 places, 83 transitions, 378 flow
[2024-11-07 23:38:00,619 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=334, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=378, PETRI_PLACES=74, PETRI_TRANSITIONS=83}
[2024-11-07 23:38:00,619 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 21 predicate places.
[2024-11-07 23:38:00,619 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 83 transitions, 378 flow
[2024-11-07 23:38:00,620 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 5 states have internal predecessors, (118), 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 23:38:00,620 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 23:38:00,620 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 23:38:00,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-07 23:38:00,620 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] ===
[2024-11-07 23:38:00,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 23:38:00,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1495633667, now seen corresponding path program 1 times
[2024-11-07 23:38:00,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 23:38:00,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773721012]
[2024-11-07 23:38:00,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:38:00,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 23:38:00,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:38:00,674 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 23:38:00,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 23:38:00,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773721012]
[2024-11-07 23:38:00,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773721012] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 23:38:00,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 23:38:00,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-07 23:38:00,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328593643]
[2024-11-07 23:38:00,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 23:38:00,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-07 23:38:00,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 23:38:00,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-07 23:38:00,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-07 23:38:00,680 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 60
[2024-11-07 23:38:00,680 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 83 transitions, 378 flow. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 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 23:38:00,680 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 23:38:00,681 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 60
[2024-11-07 23:38:00,681 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 23:38:00,945 INFO L124 PetriNetUnfolderBase]: 1703/2931 cut-off events.
[2024-11-07 23:38:00,945 INFO L125 PetriNetUnfolderBase]: For 513/553 co-relation queries the response was YES.
[2024-11-07 23:38:00,951 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6107 conditions, 2931 events. 1703/2931 cut-off events. For 513/553 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 16052 event pairs, 770 based on Foata normal form. 50/2444 useless extension candidates. Maximal degree in co-relation 6036. Up to 1824 conditions per place.
[2024-11-07 23:38:00,983 INFO L140 encePairwiseOnDemand]: 54/60 looper letters, 91 selfloop transitions, 4 changer transitions 0/117 dead transitions.
[2024-11-07 23:38:00,983 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 117 transitions, 662 flow
[2024-11-07 23:38:00,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-07 23:38:00,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-11-07 23:38:00,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 159 transitions.
[2024-11-07 23:38:00,984 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6625
[2024-11-07 23:38:00,984 INFO L175 Difference]: Start difference. First operand has 74 places, 83 transitions, 378 flow. Second operand 4 states and 159 transitions.
[2024-11-07 23:38:00,985 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 117 transitions, 662 flow
[2024-11-07 23:38:00,987 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 117 transitions, 661 flow, removed 0 selfloop flow, removed 1 redundant places.
[2024-11-07 23:38:00,990 INFO L231 Difference]: Finished difference. Result has 78 places, 86 transitions, 406 flow
[2024-11-07 23:38:00,990 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=377, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=406, PETRI_PLACES=78, PETRI_TRANSITIONS=86}
[2024-11-07 23:38:00,991 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 25 predicate places.
[2024-11-07 23:38:00,991 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 86 transitions, 406 flow
[2024-11-07 23:38:00,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 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 23:38:00,992 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 23:38:00,992 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 23:38:00,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-07 23:38:00,992 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] ===
[2024-11-07 23:38:00,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 23:38:00,992 INFO L85 PathProgramCache]: Analyzing trace with hash 1310561114, now seen corresponding path program 1 times
[2024-11-07 23:38:00,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 23:38:00,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815146951]
[2024-11-07 23:38:00,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:38:00,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 23:38:01,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:38:01,079 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 23:38:01,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 23:38:01,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815146951]
[2024-11-07 23:38:01,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815146951] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 23:38:01,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 23:38:01,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-07 23:38:01,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864279623]
[2024-11-07 23:38:01,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 23:38:01,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-07 23:38:01,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 23:38:01,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-07 23:38:01,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-07 23:38:01,091 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 60
[2024-11-07 23:38:01,092 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 86 transitions, 406 flow. Second operand has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 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 23:38:01,092 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 23:38:01,092 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 60
[2024-11-07 23:38:01,092 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 23:38:01,472 INFO L124 PetriNetUnfolderBase]: 3198/5792 cut-off events.
[2024-11-07 23:38:01,472 INFO L125 PetriNetUnfolderBase]: For 2142/2150 co-relation queries the response was YES.
[2024-11-07 23:38:01,484 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12907 conditions, 5792 events. 3198/5792 cut-off events. For 2142/2150 co-relation queries the response was YES. Maximal size of possible extension queue 253. Compared 38494 event pairs, 1820 based on Foata normal form. 102/5158 useless extension candidates. Maximal degree in co-relation 12806. Up to 2199 conditions per place.
[2024-11-07 23:38:01,502 INFO L140 encePairwiseOnDemand]: 53/60 looper letters, 107 selfloop transitions, 5 changer transitions 0/132 dead transitions.
[2024-11-07 23:38:01,502 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 132 transitions, 825 flow
[2024-11-07 23:38:01,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-07 23:38:01,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-11-07 23:38:01,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 159 transitions.
[2024-11-07 23:38:01,504 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6625
[2024-11-07 23:38:01,504 INFO L175 Difference]: Start difference. First operand has 78 places, 86 transitions, 406 flow. Second operand 4 states and 159 transitions.
[2024-11-07 23:38:01,504 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 132 transitions, 825 flow
[2024-11-07 23:38:01,511 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 132 transitions, 820 flow, removed 0 selfloop flow, removed 1 redundant places.
[2024-11-07 23:38:01,514 INFO L231 Difference]: Finished difference. Result has 82 places, 88 transitions, 440 flow
[2024-11-07 23:38:01,514 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=403, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=440, PETRI_PLACES=82, PETRI_TRANSITIONS=88}
[2024-11-07 23:38:01,516 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 29 predicate places.
[2024-11-07 23:38:01,516 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 88 transitions, 440 flow
[2024-11-07 23:38:01,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 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 23:38:01,516 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 23:38:01,516 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 23:38:01,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-07 23:38:01,516 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] ===
[2024-11-07 23:38:01,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 23:38:01,516 INFO L85 PathProgramCache]: Analyzing trace with hash 617931440, now seen corresponding path program 1 times
[2024-11-07 23:38:01,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 23:38:01,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690305998]
[2024-11-07 23:38:01,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:38:01,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 23:38:01,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:38:01,654 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 23:38:01,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 23:38:01,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690305998]
[2024-11-07 23:38:01,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690305998] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-07 23:38:01,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1444388272]
[2024-11-07 23:38:01,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:38:01,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 23:38:01,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 23:38:01,658 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 23:38:01,659 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 23:38:01,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:38:01,723 INFO L255 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-07 23:38:01,724 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-07 23:38:01,778 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 23:38:01,779 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-07 23:38:01,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1444388272] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 23:38:01,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-07 23:38:01,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [5] total 6
[2024-11-07 23:38:01,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737513965]
[2024-11-07 23:38:01,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 23:38:01,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-07 23:38:01,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 23:38:01,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-07 23:38:01,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2024-11-07 23:38:01,787 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 60
[2024-11-07 23:38:01,787 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 88 transitions, 440 flow. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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 23:38:01,787 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 23:38:01,787 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 60
[2024-11-07 23:38:01,787 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 23:38:02,131 INFO L124 PetriNetUnfolderBase]: 2858/5340 cut-off events.
[2024-11-07 23:38:02,131 INFO L125 PetriNetUnfolderBase]: For 1954/1962 co-relation queries the response was YES.
[2024-11-07 23:38:02,143 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11521 conditions, 5340 events. 2858/5340 cut-off events. For 1954/1962 co-relation queries the response was YES. Maximal size of possible extension queue 230. Compared 36078 event pairs, 1674 based on Foata normal form. 100/4782 useless extension candidates. Maximal degree in co-relation 11419. Up to 3910 conditions per place.
[2024-11-07 23:38:02,163 INFO L140 encePairwiseOnDemand]: 57/60 looper letters, 59 selfloop transitions, 1 changer transitions 0/84 dead transitions.
[2024-11-07 23:38:02,163 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 84 transitions, 532 flow
[2024-11-07 23:38:02,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-07 23:38:02,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-11-07 23:38:02,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 106 transitions.
[2024-11-07 23:38:02,164 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5888888888888889
[2024-11-07 23:38:02,165 INFO L175 Difference]: Start difference. First operand has 82 places, 88 transitions, 440 flow. Second operand 3 states and 106 transitions.
[2024-11-07 23:38:02,165 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 84 transitions, 532 flow
[2024-11-07 23:38:02,170 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 84 transitions, 515 flow, removed 1 selfloop flow, removed 4 redundant places.
[2024-11-07 23:38:02,172 INFO L231 Difference]: Finished difference. Result has 78 places, 84 transitions, 397 flow
[2024-11-07 23:38:02,172 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=395, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=397, PETRI_PLACES=78, PETRI_TRANSITIONS=84}
[2024-11-07 23:38:02,173 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 25 predicate places.
[2024-11-07 23:38:02,173 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 84 transitions, 397 flow
[2024-11-07 23:38:02,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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 23:38:02,173 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 23:38:02,173 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 23:38:02,186 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-11-07 23:38:02,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 23:38:02,374 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] ===
[2024-11-07 23:38:02,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 23:38:02,375 INFO L85 PathProgramCache]: Analyzing trace with hash 78074354, now seen corresponding path program 1 times
[2024-11-07 23:38:02,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 23:38:02,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105556286]
[2024-11-07 23:38:02,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:38:02,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 23:38:02,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:38:02,446 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-07 23:38:02,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 23:38:02,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105556286]
[2024-11-07 23:38:02,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105556286] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 23:38:02,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 23:38:02,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-07 23:38:02,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507692517]
[2024-11-07 23:38:02,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 23:38:02,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-07 23:38:02,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 23:38:02,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-07 23:38:02,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-07 23:38:02,463 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 60
[2024-11-07 23:38:02,463 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 84 transitions, 397 flow. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 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 23:38:02,463 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 23:38:02,463 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 60
[2024-11-07 23:38:02,463 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 23:38:02,758 INFO L124 PetriNetUnfolderBase]: 2242/4134 cut-off events.
[2024-11-07 23:38:02,758 INFO L125 PetriNetUnfolderBase]: For 993/1005 co-relation queries the response was YES.
[2024-11-07 23:38:02,766 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9101 conditions, 4134 events. 2242/4134 cut-off events. For 993/1005 co-relation queries the response was YES. Maximal size of possible extension queue 168. Compared 25989 event pairs, 1242 based on Foata normal form. 0/3716 useless extension candidates. Maximal degree in co-relation 9081. Up to 2113 conditions per place.
[2024-11-07 23:38:02,775 INFO L140 encePairwiseOnDemand]: 54/60 looper letters, 111 selfloop transitions, 5 changer transitions 0/138 dead transitions.
[2024-11-07 23:38:02,775 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 138 transitions, 837 flow
[2024-11-07 23:38:02,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-07 23:38:02,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2024-11-07 23:38:02,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 200 transitions.
[2024-11-07 23:38:02,802 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666
[2024-11-07 23:38:02,802 INFO L175 Difference]: Start difference. First operand has 78 places, 84 transitions, 397 flow. Second operand 5 states and 200 transitions.
[2024-11-07 23:38:02,802 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 138 transitions, 837 flow
[2024-11-07 23:38:02,806 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 138 transitions, 836 flow, removed 0 selfloop flow, removed 1 redundant places.
[2024-11-07 23:38:02,807 INFO L231 Difference]: Finished difference. Result has 83 places, 86 transitions, 425 flow
[2024-11-07 23:38:02,807 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=396, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=425, PETRI_PLACES=83, PETRI_TRANSITIONS=86}
[2024-11-07 23:38:02,807 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 30 predicate places.
[2024-11-07 23:38:02,807 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 86 transitions, 425 flow
[2024-11-07 23:38:02,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 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 23:38:02,807 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 23:38:02,807 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 23:38:02,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-11-07 23:38:02,807 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] ===
[2024-11-07 23:38:02,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 23:38:02,808 INFO L85 PathProgramCache]: Analyzing trace with hash -510845410, now seen corresponding path program 1 times
[2024-11-07 23:38:02,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 23:38:02,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818667789]
[2024-11-07 23:38:02,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:38:02,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 23:38:02,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:38:02,881 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 23:38:02,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 23:38:02,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818667789]
[2024-11-07 23:38:02,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818667789] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-07 23:38:02,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [513884330]
[2024-11-07 23:38:02,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:38:02,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 23:38:02,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 23:38:02,883 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-07 23:38:02,885 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-11-07 23:38:02,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:38:02,939 INFO L255 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-07 23:38:02,939 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-07 23:38:02,977 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 23:38:02,977 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-07 23:38:02,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [513884330] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 23:38:02,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-07 23:38:02,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 6
[2024-11-07 23:38:02,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539280685]
[2024-11-07 23:38:02,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 23:38:02,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-07 23:38:02,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 23:38:02,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-07 23:38:02,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2024-11-07 23:38:02,990 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 60
[2024-11-07 23:38:02,990 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 86 transitions, 425 flow. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 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 23:38:02,990 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 23:38:02,990 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 60
[2024-11-07 23:38:02,990 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 23:38:03,232 INFO L124 PetriNetUnfolderBase]: 2048/3876 cut-off events.
[2024-11-07 23:38:03,233 INFO L125 PetriNetUnfolderBase]: For 1683/1687 co-relation queries the response was YES.
[2024-11-07 23:38:03,241 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8538 conditions, 3876 events. 2048/3876 cut-off events. For 1683/1687 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 24143 event pairs, 1240 based on Foata normal form. 124/3670 useless extension candidates. Maximal degree in co-relation 8515. Up to 2875 conditions per place.
[2024-11-07 23:38:03,249 INFO L140 encePairwiseOnDemand]: 56/60 looper letters, 55 selfloop transitions, 6 changer transitions 0/82 dead transitions.
[2024-11-07 23:38:03,249 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 82 transitions, 521 flow
[2024-11-07 23:38:03,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-07 23:38:03,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-11-07 23:38:03,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 130 transitions.
[2024-11-07 23:38:03,251 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5416666666666666
[2024-11-07 23:38:03,251 INFO L175 Difference]: Start difference. First operand has 83 places, 86 transitions, 425 flow. Second operand 4 states and 130 transitions.
[2024-11-07 23:38:03,251 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 82 transitions, 521 flow
[2024-11-07 23:38:03,255 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 82 transitions, 501 flow, removed 0 selfloop flow, removed 5 redundant places.
[2024-11-07 23:38:03,256 INFO L231 Difference]: Finished difference. Result has 79 places, 82 transitions, 391 flow
[2024-11-07 23:38:03,256 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=379, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=391, PETRI_PLACES=79, PETRI_TRANSITIONS=82}
[2024-11-07 23:38:03,256 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 26 predicate places.
[2024-11-07 23:38:03,257 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 82 transitions, 391 flow
[2024-11-07 23:38:03,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 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 23:38:03,257 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 23:38:03,257 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 23:38:03,269 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2024-11-07 23:38:03,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9
[2024-11-07 23:38:03,462 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] ===
[2024-11-07 23:38:03,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 23:38:03,462 INFO L85 PathProgramCache]: Analyzing trace with hash 522411708, now seen corresponding path program 1 times
[2024-11-07 23:38:03,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 23:38:03,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050656281]
[2024-11-07 23:38:03,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:38:03,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 23:38:03,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:38:03,527 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-07 23:38:03,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 23:38:03,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050656281]
[2024-11-07 23:38:03,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050656281] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 23:38:03,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 23:38:03,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-07 23:38:03,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459668179]
[2024-11-07 23:38:03,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 23:38:03,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-07 23:38:03,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 23:38:03,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-07 23:38:03,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-07 23:38:03,545 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 60
[2024-11-07 23:38:03,546 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 82 transitions, 391 flow. Second operand has 5 states, 5 states have (on average 27.4) internal successors, (137), 5 states have internal predecessors, (137), 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 23:38:03,546 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 23:38:03,546 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 60
[2024-11-07 23:38:03,546 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 23:38:03,836 INFO L124 PetriNetUnfolderBase]: 1840/3398 cut-off events.
[2024-11-07 23:38:03,836 INFO L125 PetriNetUnfolderBase]: For 1111/1115 co-relation queries the response was YES.
[2024-11-07 23:38:03,843 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7606 conditions, 3398 events. 1840/3398 cut-off events. For 1111/1115 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 19986 event pairs, 1072 based on Foata normal form. 0/3118 useless extension candidates. Maximal degree in co-relation 7586. Up to 2151 conditions per place.
[2024-11-07 23:38:03,849 INFO L140 encePairwiseOnDemand]: 54/60 looper letters, 69 selfloop transitions, 3 changer transitions 32/122 dead transitions.
[2024-11-07 23:38:03,849 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 122 transitions, 756 flow
[2024-11-07 23:38:03,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-07 23:38:03,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2024-11-07 23:38:03,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 191 transitions.
[2024-11-07 23:38:03,850 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6366666666666667
[2024-11-07 23:38:03,850 INFO L175 Difference]: Start difference. First operand has 79 places, 82 transitions, 391 flow. Second operand 5 states and 191 transitions.
[2024-11-07 23:38:03,850 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 122 transitions, 756 flow
[2024-11-07 23:38:03,853 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 122 transitions, 749 flow, removed 0 selfloop flow, removed 2 redundant places.
[2024-11-07 23:38:03,854 INFO L231 Difference]: Finished difference. Result has 83 places, 80 transitions, 381 flow
[2024-11-07 23:38:03,854 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=384, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=381, PETRI_PLACES=83, PETRI_TRANSITIONS=80}
[2024-11-07 23:38:03,855 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 30 predicate places.
[2024-11-07 23:38:03,855 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 80 transitions, 381 flow
[2024-11-07 23:38:03,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 5 states have internal predecessors, (137), 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 23:38:03,855 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 23:38:03,855 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1]
[2024-11-07 23:38:03,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2024-11-07 23:38:03,855 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] ===
[2024-11-07 23:38:03,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 23:38:03,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1283735314, now seen corresponding path program 2 times
[2024-11-07 23:38:03,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 23:38:03,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077819097]
[2024-11-07 23:38:03,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:38:03,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 23:38:03,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:38:03,986 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 23:38:03,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 23:38:03,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077819097]
[2024-11-07 23:38:03,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077819097] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-07 23:38:03,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [684120314]
[2024-11-07 23:38:03,987 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-07 23:38:03,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 23:38:03,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 23:38:03,989 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-07 23:38:03,990 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-11-07 23:38:04,049 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s)
[2024-11-07 23:38:04,050 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-07 23:38:04,050 INFO L255 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-07 23:38:04,051 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-07 23:38:04,086 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked.
[2024-11-07 23:38:04,087 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-07 23:38:04,113 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked.
[2024-11-07 23:38:04,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [684120314] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-07 23:38:04,114 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-07 23:38:04,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 2, 2] total 12
[2024-11-07 23:38:04,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174177021]
[2024-11-07 23:38:04,114 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-07 23:38:04,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states
[2024-11-07 23:38:04,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 23:38:04,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2024-11-07 23:38:04,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182
[2024-11-07 23:38:04,142 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 60
[2024-11-07 23:38:04,143 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 80 transitions, 381 flow. Second operand has 14 states, 14 states have (on average 23.142857142857142) internal successors, (324), 14 states have internal predecessors, (324), 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 23:38:04,143 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 23:38:04,143 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 60
[2024-11-07 23:38:04,143 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 23:38:04,545 INFO L124 PetriNetUnfolderBase]: 1511/2881 cut-off events.
[2024-11-07 23:38:04,546 INFO L125 PetriNetUnfolderBase]: For 1007/1011 co-relation queries the response was YES.
[2024-11-07 23:38:04,551 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6568 conditions, 2881 events. 1511/2881 cut-off events. For 1007/1011 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 17070 event pairs, 920 based on Foata normal form. 4/2769 useless extension candidates. Maximal degree in co-relation 6546. Up to 2117 conditions per place.
[2024-11-07 23:38:04,556 INFO L140 encePairwiseOnDemand]: 51/60 looper letters, 33 selfloop transitions, 34 changer transitions 0/85 dead transitions.
[2024-11-07 23:38:04,556 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 85 transitions, 545 flow
[2024-11-07 23:38:04,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states.
[2024-11-07 23:38:04,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states.
[2024-11-07 23:38:04,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 594 transitions.
[2024-11-07 23:38:04,558 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4125
[2024-11-07 23:38:04,558 INFO L175 Difference]: Start difference. First operand has 83 places, 80 transitions, 381 flow. Second operand 24 states and 594 transitions.
[2024-11-07 23:38:04,558 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 85 transitions, 545 flow
[2024-11-07 23:38:04,562 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 85 transitions, 532 flow, removed 4 selfloop flow, removed 4 redundant places.
[2024-11-07 23:38:04,564 INFO L231 Difference]: Finished difference. Result has 101 places, 85 transitions, 479 flow
[2024-11-07 23:38:04,564 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=358, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=479, PETRI_PLACES=101, PETRI_TRANSITIONS=85}
[2024-11-07 23:38:04,564 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 48 predicate places.
[2024-11-07 23:38:04,565 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 85 transitions, 479 flow
[2024-11-07 23:38:04,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 23.142857142857142) internal successors, (324), 14 states have internal predecessors, (324), 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 23:38:04,566 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 23:38:04,566 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 23:38:04,578 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0
[2024-11-07 23:38:04,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11
[2024-11-07 23:38:04,766 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] ===
[2024-11-07 23:38:04,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 23:38:04,767 INFO L85 PathProgramCache]: Analyzing trace with hash 2053061558, now seen corresponding path program 1 times
[2024-11-07 23:38:04,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 23:38:04,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533253040]
[2024-11-07 23:38:04,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:38:04,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 23:38:04,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:38:04,829 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2024-11-07 23:38:04,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 23:38:04,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533253040]
[2024-11-07 23:38:04,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533253040] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 23:38:04,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 23:38:04,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-07 23:38:04,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090789943]
[2024-11-07 23:38:04,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 23:38:04,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-07 23:38:04,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 23:38:04,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-07 23:38:04,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-07 23:38:04,844 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 60
[2024-11-07 23:38:04,844 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 85 transitions, 479 flow. Second operand has 5 states, 5 states have (on average 27.4) internal successors, (137), 5 states have internal predecessors, (137), 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 23:38:04,844 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 23:38:04,844 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 60
[2024-11-07 23:38:04,844 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 23:38:05,015 INFO L124 PetriNetUnfolderBase]: 1209/2287 cut-off events.
[2024-11-07 23:38:05,015 INFO L125 PetriNetUnfolderBase]: For 746/750 co-relation queries the response was YES.
[2024-11-07 23:38:05,021 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5147 conditions, 2287 events. 1209/2287 cut-off events. For 746/750 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 12598 event pairs, 704 based on Foata normal form. 0/2071 useless extension candidates. Maximal degree in co-relation 5125. Up to 1174 conditions per place.
[2024-11-07 23:38:05,027 INFO L140 encePairwiseOnDemand]: 54/60 looper letters, 93 selfloop transitions, 10 changer transitions 4/124 dead transitions.
[2024-11-07 23:38:05,027 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 124 transitions, 811 flow
[2024-11-07 23:38:05,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-07 23:38:05,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2024-11-07 23:38:05,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 197 transitions.
[2024-11-07 23:38:05,028 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6566666666666666
[2024-11-07 23:38:05,028 INFO L175 Difference]: Start difference. First operand has 101 places, 85 transitions, 479 flow. Second operand 5 states and 197 transitions.
[2024-11-07 23:38:05,028 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 124 transitions, 811 flow
[2024-11-07 23:38:05,031 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 124 transitions, 711 flow, removed 10 selfloop flow, removed 12 redundant places.
[2024-11-07 23:38:05,033 INFO L231 Difference]: Finished difference. Result has 95 places, 87 transitions, 420 flow
[2024-11-07 23:38:05,033 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=379, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=420, PETRI_PLACES=95, PETRI_TRANSITIONS=87}
[2024-11-07 23:38:05,034 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 42 predicate places.
[2024-11-07 23:38:05,034 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 87 transitions, 420 flow
[2024-11-07 23:38:05,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 5 states have internal predecessors, (137), 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 23:38:05,034 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 23:38:05,034 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 23:38:05,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2024-11-07 23:38:05,034 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] ===
[2024-11-07 23:38:05,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 23:38:05,035 INFO L85 PathProgramCache]: Analyzing trace with hash 109569920, now seen corresponding path program 1 times
[2024-11-07 23:38:05,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 23:38:05,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723297268]
[2024-11-07 23:38:05,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:38:05,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 23:38:05,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:38:05,104 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2024-11-07 23:38:05,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 23:38:05,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723297268]
[2024-11-07 23:38:05,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723297268] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 23:38:05,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 23:38:05,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-07 23:38:05,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462420684]
[2024-11-07 23:38:05,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 23:38:05,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-07 23:38:05,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 23:38:05,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-07 23:38:05,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-07 23:38:05,122 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 60
[2024-11-07 23:38:05,122 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 87 transitions, 420 flow. Second operand has 5 states, 5 states have (on average 27.8) internal successors, (139), 5 states have internal predecessors, (139), 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 23:38:05,122 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 23:38:05,122 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 60
[2024-11-07 23:38:05,123 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 23:38:05,270 INFO L124 PetriNetUnfolderBase]: 1021/1947 cut-off events.
[2024-11-07 23:38:05,270 INFO L125 PetriNetUnfolderBase]: For 829/831 co-relation queries the response was YES.
[2024-11-07 23:38:05,273 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4464 conditions, 1947 events. 1021/1947 cut-off events. For 829/831 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 10163 event pairs, 620 based on Foata normal form. 0/1813 useless extension candidates. Maximal degree in co-relation 4443. Up to 1189 conditions per place.
[2024-11-07 23:38:05,276 INFO L140 encePairwiseOnDemand]: 54/60 looper letters, 60 selfloop transitions, 7 changer transitions 28/112 dead transitions.
[2024-11-07 23:38:05,276 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 112 transitions, 677 flow
[2024-11-07 23:38:05,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-07 23:38:05,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2024-11-07 23:38:05,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 188 transitions.
[2024-11-07 23:38:05,277 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6266666666666667
[2024-11-07 23:38:05,278 INFO L175 Difference]: Start difference. First operand has 95 places, 87 transitions, 420 flow. Second operand 5 states and 188 transitions.
[2024-11-07 23:38:05,278 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 112 transitions, 677 flow
[2024-11-07 23:38:05,280 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 112 transitions, 662 flow, removed 0 selfloop flow, removed 2 redundant places.
[2024-11-07 23:38:05,281 INFO L231 Difference]: Finished difference. Result has 99 places, 84 transitions, 400 flow
[2024-11-07 23:38:05,281 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=405, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=400, PETRI_PLACES=99, PETRI_TRANSITIONS=84}
[2024-11-07 23:38:05,281 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 46 predicate places.
[2024-11-07 23:38:05,281 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 84 transitions, 400 flow
[2024-11-07 23:38:05,281 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 5 states have internal predecessors, (139), 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 23:38:05,281 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 23:38:05,282 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 23:38:05,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2024-11-07 23:38:05,282 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] ===
[2024-11-07 23:38:05,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 23:38:05,282 INFO L85 PathProgramCache]: Analyzing trace with hash -292619549, now seen corresponding path program 1 times
[2024-11-07 23:38:05,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 23:38:05,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370099218]
[2024-11-07 23:38:05,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:38:05,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 23:38:05,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:38:05,333 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-07 23:38:05,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 23:38:05,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370099218]
[2024-11-07 23:38:05,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370099218] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-07 23:38:05,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1089314051]
[2024-11-07 23:38:05,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:38:05,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 23:38:05,333 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 23:38:05,335 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-07 23:38:05,336 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2024-11-07 23:38:05,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:38:05,392 INFO L255 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 10 conjuncts are in the unsatisfiable core
[2024-11-07 23:38:05,393 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-07 23:38:05,487 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-07 23:38:05,489 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-07 23:38:05,588 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-07 23:38:05,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1089314051] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-07 23:38:05,590 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-07 23:38:05,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19
[2024-11-07 23:38:05,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499086597]
[2024-11-07 23:38:05,590 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-07 23:38:05,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states
[2024-11-07 23:38:05,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 23:38:05,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2024-11-07 23:38:05,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342
[2024-11-07 23:38:05,911 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 60
[2024-11-07 23:38:05,912 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 84 transitions, 400 flow. Second operand has 19 states, 19 states have (on average 21.0) internal successors, (399), 19 states have internal predecessors, (399), 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 23:38:05,912 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 23:38:05,912 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 60
[2024-11-07 23:38:05,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 23:38:06,578 INFO L124 PetriNetUnfolderBase]: 1449/2543 cut-off events.
[2024-11-07 23:38:06,579 INFO L125 PetriNetUnfolderBase]: For 1236/1280 co-relation queries the response was YES.
[2024-11-07 23:38:06,585 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6208 conditions, 2543 events. 1449/2543 cut-off events. For 1236/1280 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 13393 event pairs, 416 based on Foata normal form. 52/2509 useless extension candidates. Maximal degree in co-relation 6185. Up to 516 conditions per place.
[2024-11-07 23:38:06,591 INFO L140 encePairwiseOnDemand]: 48/60 looper letters, 155 selfloop transitions, 42 changer transitions 10/221 dead transitions.
[2024-11-07 23:38:06,591 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 221 transitions, 1270 flow
[2024-11-07 23:38:06,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states.
[2024-11-07 23:38:06,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states.
[2024-11-07 23:38:06,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 433 transitions.
[2024-11-07 23:38:06,593 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5154761904761904
[2024-11-07 23:38:06,593 INFO L175 Difference]: Start difference. First operand has 99 places, 84 transitions, 400 flow. Second operand 14 states and 433 transitions.
[2024-11-07 23:38:06,593 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 221 transitions, 1270 flow
[2024-11-07 23:38:06,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 221 transitions, 1204 flow, removed 26 selfloop flow, removed 6 redundant places.
[2024-11-07 23:38:06,601 INFO L231 Difference]: Finished difference. Result has 101 places, 88 transitions, 482 flow
[2024-11-07 23:38:06,601 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=370, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=482, PETRI_PLACES=101, PETRI_TRANSITIONS=88}
[2024-11-07 23:38:06,602 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 48 predicate places.
[2024-11-07 23:38:06,602 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 88 transitions, 482 flow
[2024-11-07 23:38:06,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 21.0) internal successors, (399), 19 states have internal predecessors, (399), 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 23:38:06,602 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 23:38:06,602 INFO L204 CegarLoopForPetriNet]: trace histogram [6, 6, 5, 1, 1, 1]
[2024-11-07 23:38:06,616 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0
[2024-11-07 23:38:06,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14
[2024-11-07 23:38:06,807 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] ===
[2024-11-07 23:38:06,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 23:38:06,807 INFO L85 PathProgramCache]: Analyzing trace with hash 693607989, now seen corresponding path program 1 times
[2024-11-07 23:38:06,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 23:38:06,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101541811]
[2024-11-07 23:38:06,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:38:06,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 23:38:06,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:38:06,939 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 23:38:06,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 23:38:06,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101541811]
[2024-11-07 23:38:06,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101541811] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-07 23:38:06,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [104802884]
[2024-11-07 23:38:06,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:38:06,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 23:38:06,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 23:38:06,942 INFO L229 MonitoredProcess]: Starting monitored process 8 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 23:38:06,943 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2024-11-07 23:38:06,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:38:07,000 INFO L255 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 13 conjuncts are in the unsatisfiable core
[2024-11-07 23:38:07,000 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-07 23:38:07,033 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 23:38:07,033 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-07 23:38:07,181 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 23:38:07,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [104802884] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-07 23:38:07,181 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-07 23:38:07,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 27
[2024-11-07 23:38:07,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519740546]
[2024-11-07 23:38:07,181 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-07 23:38:07,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states
[2024-11-07 23:38:07,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 23:38:07,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants.
[2024-11-07 23:38:07,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=209, Invalid=547, Unknown=0, NotChecked=0, Total=756
[2024-11-07 23:38:07,225 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 60
[2024-11-07 23:38:07,226 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 88 transitions, 482 flow. Second operand has 28 states, 28 states have (on average 23.071428571428573) internal successors, (646), 28 states have internal predecessors, (646), 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 23:38:07,226 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 23:38:07,226 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 60
[2024-11-07 23:38:07,226 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 23:38:07,561 INFO L124 PetriNetUnfolderBase]: 1382/2661 cut-off events.
[2024-11-07 23:38:07,562 INFO L125 PetriNetUnfolderBase]: For 1921/1921 co-relation queries the response was YES.
[2024-11-07 23:38:07,568 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6372 conditions, 2661 events. 1382/2661 cut-off events. For 1921/1921 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 15189 event pairs, 848 based on Foata normal form. 14/2479 useless extension candidates. Maximal degree in co-relation 6352. Up to 1938 conditions per place.
[2024-11-07 23:38:07,574 INFO L140 encePairwiseOnDemand]: 52/60 looper letters, 39 selfloop transitions, 72 changer transitions 0/130 dead transitions.
[2024-11-07 23:38:07,574 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 130 transitions, 1061 flow
[2024-11-07 23:38:07,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states.
[2024-11-07 23:38:07,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states.
[2024-11-07 23:38:07,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 683 transitions.
[2024-11-07 23:38:07,576 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4378205128205128
[2024-11-07 23:38:07,576 INFO L175 Difference]: Start difference. First operand has 101 places, 88 transitions, 482 flow. Second operand 26 states and 683 transitions.
[2024-11-07 23:38:07,576 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 130 transitions, 1061 flow
[2024-11-07 23:38:07,581 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 130 transitions, 1020 flow, removed 3 selfloop flow, removed 6 redundant places.
[2024-11-07 23:38:07,582 INFO L231 Difference]: Finished difference. Result has 127 places, 130 transitions, 994 flow
[2024-11-07 23:38:07,582 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=448, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=994, PETRI_PLACES=127, PETRI_TRANSITIONS=130}
[2024-11-07 23:38:07,582 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 74 predicate places.
[2024-11-07 23:38:07,583 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 130 transitions, 994 flow
[2024-11-07 23:38:07,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 23.071428571428573) internal successors, (646), 28 states have internal predecessors, (646), 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 23:38:07,583 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 23:38:07,583 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 23:38:07,595 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0
[2024-11-07 23:38:07,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 23:38:07,784 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] ===
[2024-11-07 23:38:07,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 23:38:07,784 INFO L85 PathProgramCache]: Analyzing trace with hash 767856493, now seen corresponding path program 1 times
[2024-11-07 23:38:07,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 23:38:07,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744429377]
[2024-11-07 23:38:07,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:38:07,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 23:38:07,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:38:07,852 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-07 23:38:07,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 23:38:07,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744429377]
[2024-11-07 23:38:07,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744429377] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-07 23:38:07,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [479920162]
[2024-11-07 23:38:07,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:38:07,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 23:38:07,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 23:38:07,855 INFO L229 MonitoredProcess]: Starting monitored process 9 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 23:38:07,856 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2024-11-07 23:38:07,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:38:07,912 INFO L255 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 10 conjuncts are in the unsatisfiable core
[2024-11-07 23:38:07,913 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-07 23:38:07,985 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-07 23:38:07,986 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-07 23:38:08,072 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-07 23:38:08,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [479920162] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-07 23:38:08,072 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-07 23:38:08,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19
[2024-11-07 23:38:08,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541434676]
[2024-11-07 23:38:08,072 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-07 23:38:08,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states
[2024-11-07 23:38:08,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 23:38:08,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2024-11-07 23:38:08,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342
[2024-11-07 23:38:08,290 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 60
[2024-11-07 23:38:08,290 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 130 transitions, 994 flow. Second operand has 19 states, 19 states have (on average 21.210526315789473) internal successors, (403), 19 states have internal predecessors, (403), 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 23:38:08,290 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 23:38:08,290 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 60
[2024-11-07 23:38:08,290 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 23:38:08,740 INFO L124 PetriNetUnfolderBase]: 1357/2444 cut-off events.
[2024-11-07 23:38:08,740 INFO L125 PetriNetUnfolderBase]: For 1553/1569 co-relation queries the response was YES.
[2024-11-07 23:38:08,746 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6030 conditions, 2444 events. 1357/2444 cut-off events. For 1553/1569 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 12626 event pairs, 400 based on Foata normal form. 25/2305 useless extension candidates. Maximal degree in co-relation 6002. Up to 569 conditions per place.
[2024-11-07 23:38:08,750 INFO L140 encePairwiseOnDemand]: 48/60 looper letters, 98 selfloop transitions, 71 changer transitions 67/249 dead transitions.
[2024-11-07 23:38:08,750 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 249 transitions, 1836 flow
[2024-11-07 23:38:08,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states.
[2024-11-07 23:38:08,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states.
[2024-11-07 23:38:08,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 426 transitions.
[2024-11-07 23:38:08,751 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5071428571428571
[2024-11-07 23:38:08,751 INFO L175 Difference]: Start difference. First operand has 127 places, 130 transitions, 994 flow. Second operand 14 states and 426 transitions.
[2024-11-07 23:38:08,752 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 249 transitions, 1836 flow
[2024-11-07 23:38:08,757 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 249 transitions, 1651 flow, removed 54 selfloop flow, removed 12 redundant places.
[2024-11-07 23:38:08,760 INFO L231 Difference]: Finished difference. Result has 128 places, 123 transitions, 917 flow
[2024-11-07 23:38:08,761 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=805, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=71, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=917, PETRI_PLACES=128, PETRI_TRANSITIONS=123}
[2024-11-07 23:38:08,761 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 75 predicate places.
[2024-11-07 23:38:08,761 INFO L471 AbstractCegarLoop]: Abstraction has has 128 places, 123 transitions, 917 flow
[2024-11-07 23:38:08,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 21.210526315789473) internal successors, (403), 19 states have internal predecessors, (403), 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 23:38:08,762 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 23:38:08,762 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 23:38:08,774 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0
[2024-11-07 23:38:08,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16
[2024-11-07 23:38:08,963 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] ===
[2024-11-07 23:38:08,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 23:38:08,963 INFO L85 PathProgramCache]: Analyzing trace with hash 771933349, now seen corresponding path program 1 times
[2024-11-07 23:38:08,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 23:38:08,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077707077]
[2024-11-07 23:38:08,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:38:08,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 23:38:08,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:38:09,022 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2024-11-07 23:38:09,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 23:38:09,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077707077]
[2024-11-07 23:38:09,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077707077] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-07 23:38:09,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [890466574]
[2024-11-07 23:38:09,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:38:09,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 23:38:09,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 23:38:09,024 INFO L229 MonitoredProcess]: Starting monitored process 10 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 23:38:09,025 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process
[2024-11-07 23:38:09,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:38:09,089 INFO L255 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 10 conjuncts are in the unsatisfiable core
[2024-11-07 23:38:09,090 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-07 23:38:09,166 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2024-11-07 23:38:09,167 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-07 23:38:09,249 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2024-11-07 23:38:09,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [890466574] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-07 23:38:09,250 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-07 23:38:09,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8, 8] total 19
[2024-11-07 23:38:09,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13818004]
[2024-11-07 23:38:09,250 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-07 23:38:09,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states
[2024-11-07 23:38:09,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 23:38:09,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2024-11-07 23:38:09,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=278, Unknown=0, NotChecked=0, Total=342
[2024-11-07 23:38:09,456 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 60
[2024-11-07 23:38:09,457 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 123 transitions, 917 flow. Second operand has 19 states, 19 states have (on average 21.157894736842106) internal successors, (402), 19 states have internal predecessors, (402), 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 23:38:09,457 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 23:38:09,457 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 60
[2024-11-07 23:38:09,457 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 23:38:09,981 INFO L124 PetriNetUnfolderBase]: 1659/2909 cut-off events.
[2024-11-07 23:38:09,981 INFO L125 PetriNetUnfolderBase]: For 2546/2566 co-relation queries the response was YES.
[2024-11-07 23:38:09,988 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7737 conditions, 2909 events. 1659/2909 cut-off events. For 2546/2566 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 14995 event pairs, 554 based on Foata normal form. 52/2900 useless extension candidates. Maximal degree in co-relation 7710. Up to 880 conditions per place.
[2024-11-07 23:38:09,993 INFO L140 encePairwiseOnDemand]: 48/60 looper letters, 217 selfloop transitions, 69 changer transitions 10/309 dead transitions.
[2024-11-07 23:38:09,993 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 309 transitions, 2440 flow
[2024-11-07 23:38:09,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states.
[2024-11-07 23:38:09,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states.
[2024-11-07 23:38:09,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 505 transitions.
[2024-11-07 23:38:09,996 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4950980392156863
[2024-11-07 23:38:09,996 INFO L175 Difference]: Start difference. First operand has 128 places, 123 transitions, 917 flow. Second operand 17 states and 505 transitions.
[2024-11-07 23:38:09,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 309 transitions, 2440 flow
[2024-11-07 23:38:10,004 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 309 transitions, 2240 flow, removed 23 selfloop flow, removed 9 redundant places.
[2024-11-07 23:38:10,006 INFO L231 Difference]: Finished difference. Result has 132 places, 160 transitions, 1451 flow
[2024-11-07 23:38:10,007 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=835, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=1451, PETRI_PLACES=132, PETRI_TRANSITIONS=160}
[2024-11-07 23:38:10,007 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 79 predicate places.
[2024-11-07 23:38:10,007 INFO L471 AbstractCegarLoop]: Abstraction has has 132 places, 160 transitions, 1451 flow
[2024-11-07 23:38:10,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 21.157894736842106) internal successors, (402), 19 states have internal predecessors, (402), 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 23:38:10,007 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 23:38:10,007 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 23:38:10,020 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0
[2024-11-07 23:38:10,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17
[2024-11-07 23:38:10,208 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] ===
[2024-11-07 23:38:10,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 23:38:10,209 INFO L85 PathProgramCache]: Analyzing trace with hash -227915218, now seen corresponding path program 1 times
[2024-11-07 23:38:10,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 23:38:10,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884154170]
[2024-11-07 23:38:10,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:38:10,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 23:38:10,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:38:10,261 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2024-11-07 23:38:10,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 23:38:10,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884154170]
[2024-11-07 23:38:10,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884154170] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-07 23:38:10,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [171670232]
[2024-11-07 23:38:10,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:38:10,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 23:38:10,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 23:38:10,264 INFO L229 MonitoredProcess]: Starting monitored process 11 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 23:38:10,265 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process
[2024-11-07 23:38:10,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:38:10,325 INFO L255 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 10 conjuncts are in the unsatisfiable core
[2024-11-07 23:38:10,326 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-07 23:38:10,397 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2024-11-07 23:38:10,397 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-07 23:38:10,479 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2024-11-07 23:38:10,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [171670232] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-07 23:38:10,480 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-07 23:38:10,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8, 8] total 19
[2024-11-07 23:38:10,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648875470]
[2024-11-07 23:38:10,480 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-07 23:38:10,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states
[2024-11-07 23:38:10,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 23:38:10,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2024-11-07 23:38:10,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=278, Unknown=0, NotChecked=0, Total=342
[2024-11-07 23:38:10,687 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 60
[2024-11-07 23:38:10,688 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 160 transitions, 1451 flow. Second operand has 19 states, 19 states have (on average 21.36842105263158) internal successors, (406), 19 states have internal predecessors, (406), 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 23:38:10,688 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 23:38:10,688 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 60
[2024-11-07 23:38:10,688 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 23:38:11,160 INFO L124 PetriNetUnfolderBase]: 1881/3284 cut-off events.
[2024-11-07 23:38:11,160 INFO L125 PetriNetUnfolderBase]: For 3705/3741 co-relation queries the response was YES.
[2024-11-07 23:38:11,166 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8792 conditions, 3284 events. 1881/3284 cut-off events. For 3705/3741 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 16701 event pairs, 653 based on Foata normal form. 33/3115 useless extension candidates. Maximal degree in co-relation 8761. Up to 1171 conditions per place.
[2024-11-07 23:38:11,169 INFO L140 encePairwiseOnDemand]: 48/60 looper letters, 152 selfloop transitions, 64 changer transitions 77/307 dead transitions.
[2024-11-07 23:38:11,169 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 307 transitions, 2659 flow
[2024-11-07 23:38:11,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states.
[2024-11-07 23:38:11,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states.
[2024-11-07 23:38:11,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 498 transitions.
[2024-11-07 23:38:11,170 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.48823529411764705
[2024-11-07 23:38:11,170 INFO L175 Difference]: Start difference. First operand has 132 places, 160 transitions, 1451 flow. Second operand 17 states and 498 transitions.
[2024-11-07 23:38:11,170 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 307 transitions, 2659 flow
[2024-11-07 23:38:11,178 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 307 transitions, 2593 flow, removed 10 selfloop flow, removed 5 redundant places.
[2024-11-07 23:38:11,180 INFO L231 Difference]: Finished difference. Result has 146 places, 158 transitions, 1557 flow
[2024-11-07 23:38:11,180 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=1429, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=1557, PETRI_PLACES=146, PETRI_TRANSITIONS=158}
[2024-11-07 23:38:11,180 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 93 predicate places.
[2024-11-07 23:38:11,180 INFO L471 AbstractCegarLoop]: Abstraction has has 146 places, 158 transitions, 1557 flow
[2024-11-07 23:38:11,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 21.36842105263158) internal successors, (406), 19 states have internal predecessors, (406), 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 23:38:11,181 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 23:38:11,181 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 23:38:11,193 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0
[2024-11-07 23:38:11,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 23:38:11,381 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] ===
[2024-11-07 23:38:11,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 23:38:11,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1516570991, now seen corresponding path program 2 times
[2024-11-07 23:38:11,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 23:38:11,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938485728]
[2024-11-07 23:38:11,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:38:11,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 23:38:11,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:38:11,524 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2024-11-07 23:38:11,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 23:38:11,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938485728]
[2024-11-07 23:38:11,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938485728] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-07 23:38:11,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2142522145]
[2024-11-07 23:38:11,524 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-07 23:38:11,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 23:38:11,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 23:38:11,526 INFO L229 MonitoredProcess]: Starting monitored process 12 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 23:38:11,527 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process
[2024-11-07 23:38:11,587 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s)
[2024-11-07 23:38:11,587 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-07 23:38:11,588 INFO L255 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-07 23:38:11,591 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-07 23:38:11,639 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked.
[2024-11-07 23:38:11,639 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-07 23:38:11,677 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked.
[2024-11-07 23:38:11,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2142522145] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-07 23:38:11,677 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-07 23:38:11,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 3, 3] total 15
[2024-11-07 23:38:11,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732207453]
[2024-11-07 23:38:11,678 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-07 23:38:11,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states
[2024-11-07 23:38:11,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 23:38:11,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2024-11-07 23:38:11,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240
[2024-11-07 23:38:11,811 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 60
[2024-11-07 23:38:11,811 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 158 transitions, 1557 flow. Second operand has 16 states, 16 states have (on average 17.3125) internal successors, (277), 16 states have internal predecessors, (277), 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 23:38:11,811 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 23:38:11,811 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 60
[2024-11-07 23:38:11,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 23:38:12,479 INFO L124 PetriNetUnfolderBase]: 2594/4472 cut-off events.
[2024-11-07 23:38:12,479 INFO L125 PetriNetUnfolderBase]: For 6300/6340 co-relation queries the response was YES.
[2024-11-07 23:38:12,489 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13100 conditions, 4472 events. 2594/4472 cut-off events. For 6300/6340 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 24276 event pairs, 720 based on Foata normal form. 68/4474 useless extension candidates. Maximal degree in co-relation 13065. Up to 1111 conditions per place.
[2024-11-07 23:38:12,495 INFO L140 encePairwiseOnDemand]: 50/60 looper letters, 298 selfloop transitions, 28 changer transitions 16/356 dead transitions.
[2024-11-07 23:38:12,495 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 356 transitions, 3451 flow
[2024-11-07 23:38:12,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states.
[2024-11-07 23:38:12,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states.
[2024-11-07 23:38:12,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 417 transitions.
[2024-11-07 23:38:12,496 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.434375
[2024-11-07 23:38:12,496 INFO L175 Difference]: Start difference. First operand has 146 places, 158 transitions, 1557 flow. Second operand 16 states and 417 transitions.
[2024-11-07 23:38:12,496 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 356 transitions, 3451 flow
[2024-11-07 23:38:12,511 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 356 transitions, 3254 flow, removed 33 selfloop flow, removed 14 redundant places.
[2024-11-07 23:38:12,513 INFO L231 Difference]: Finished difference. Result has 142 places, 168 transitions, 1611 flow
[2024-11-07 23:38:12,513 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=1468, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1611, PETRI_PLACES=142, PETRI_TRANSITIONS=168}
[2024-11-07 23:38:12,514 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 89 predicate places.
[2024-11-07 23:38:12,514 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 168 transitions, 1611 flow
[2024-11-07 23:38:12,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 17.3125) internal successors, (277), 16 states have internal predecessors, (277), 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 23:38:12,514 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 23:38:12,514 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 23:38:12,526 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0
[2024-11-07 23:38:12,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 23:38:12,718 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] ===
[2024-11-07 23:38:12,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 23:38:12,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1220508121, now seen corresponding path program 2 times
[2024-11-07 23:38:12,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 23:38:12,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537264916]
[2024-11-07 23:38:12,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:38:12,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 23:38:12,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:38:12,867 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2024-11-07 23:38:12,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 23:38:12,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537264916]
[2024-11-07 23:38:12,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537264916] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-07 23:38:12,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1749645168]
[2024-11-07 23:38:12,867 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-07 23:38:12,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 23:38:12,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 23:38:12,869 INFO L229 MonitoredProcess]: Starting monitored process 13 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 23:38:12,870 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process
[2024-11-07 23:38:12,932 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s)
[2024-11-07 23:38:12,932 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-07 23:38:12,933 INFO L255 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-07 23:38:12,934 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-07 23:38:12,978 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked.
[2024-11-07 23:38:12,979 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-07 23:38:13,017 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked.
[2024-11-07 23:38:13,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1749645168] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-07 23:38:13,017 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-07 23:38:13,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 3, 3] total 15
[2024-11-07 23:38:13,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56464538]
[2024-11-07 23:38:13,017 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-07 23:38:13,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states
[2024-11-07 23:38:13,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 23:38:13,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2024-11-07 23:38:13,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240
[2024-11-07 23:38:13,155 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 60
[2024-11-07 23:38:13,156 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 168 transitions, 1611 flow. Second operand has 16 states, 16 states have (on average 17.5625) internal successors, (281), 16 states have internal predecessors, (281), 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 23:38:13,156 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 23:38:13,156 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 60
[2024-11-07 23:38:13,156 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 23:38:13,825 INFO L124 PetriNetUnfolderBase]: 2529/4397 cut-off events.
[2024-11-07 23:38:13,825 INFO L125 PetriNetUnfolderBase]: For 6953/6953 co-relation queries the response was YES.
[2024-11-07 23:38:13,835 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12913 conditions, 4397 events. 2529/4397 cut-off events. For 6953/6953 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 23822 event pairs, 762 based on Foata normal form. 37/4185 useless extension candidates. Maximal degree in co-relation 12880. Up to 1211 conditions per place.
[2024-11-07 23:38:13,837 INFO L140 encePairwiseOnDemand]: 47/60 looper letters, 59 selfloop transitions, 65 changer transitions 219/345 dead transitions.
[2024-11-07 23:38:13,837 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 345 transitions, 3359 flow
[2024-11-07 23:38:13,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states.
[2024-11-07 23:38:13,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states.
[2024-11-07 23:38:13,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 488 transitions.
[2024-11-07 23:38:13,838 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3873015873015873
[2024-11-07 23:38:13,838 INFO L175 Difference]: Start difference. First operand has 142 places, 168 transitions, 1611 flow. Second operand 21 states and 488 transitions.
[2024-11-07 23:38:13,838 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 345 transitions, 3359 flow
[2024-11-07 23:38:13,849 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 345 transitions, 3337 flow, removed 2 selfloop flow, removed 7 redundant places.
[2024-11-07 23:38:13,852 INFO L231 Difference]: Finished difference. Result has 156 places, 125 transitions, 1903 flow
[2024-11-07 23:38:13,852 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=1585, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1903, PETRI_PLACES=156, PETRI_TRANSITIONS=125}
[2024-11-07 23:38:13,852 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 103 predicate places.
[2024-11-07 23:38:13,852 INFO L471 AbstractCegarLoop]: Abstraction has has 156 places, 125 transitions, 1903 flow
[2024-11-07 23:38:13,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 17.5625) internal successors, (281), 16 states have internal predecessors, (281), 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 23:38:13,852 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 23:38:13,852 INFO L204 CegarLoopForPetriNet]: trace histogram [13, 13, 12, 1, 1, 1]
[2024-11-07 23:38:13,864 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0
[2024-11-07 23:38:14,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,13 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 23:38:14,053 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] ===
[2024-11-07 23:38:14,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 23:38:14,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1101518592, now seen corresponding path program 2 times
[2024-11-07 23:38:14,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 23:38:14,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46198962]
[2024-11-07 23:38:14,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:38:14,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 23:38:14,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:38:14,398 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 0 proven. 234 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 23:38:14,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 23:38:14,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46198962]
[2024-11-07 23:38:14,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46198962] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-07 23:38:14,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1318030086]
[2024-11-07 23:38:14,398 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-07 23:38:14,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 23:38:14,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 23:38:14,400 INFO L229 MonitoredProcess]: Starting monitored process 14 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 23:38:14,402 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process
[2024-11-07 23:38:14,464 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s)
[2024-11-07 23:38:14,465 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-07 23:38:14,465 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-07 23:38:14,466 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-07 23:38:14,541 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked.
[2024-11-07 23:38:14,541 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-07 23:38:14,601 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked.
[2024-11-07 23:38:14,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1318030086] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-07 23:38:14,601 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-07 23:38:14,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 3, 3] total 30
[2024-11-07 23:38:14,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325747195]
[2024-11-07 23:38:14,602 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-07 23:38:14,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states
[2024-11-07 23:38:14,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 23:38:14,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants.
[2024-11-07 23:38:14,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=228, Invalid=702, Unknown=0, NotChecked=0, Total=930
[2024-11-07 23:38:14,670 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 60
[2024-11-07 23:38:14,671 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 125 transitions, 1903 flow. Second operand has 31 states, 31 states have (on average 23.096774193548388) internal successors, (716), 31 states have internal predecessors, (716), 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 23:38:14,671 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 23:38:14,671 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 60
[2024-11-07 23:38:14,671 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 23:38:15,090 INFO L124 PetriNetUnfolderBase]: 15/225 cut-off events.
[2024-11-07 23:38:15,090 INFO L125 PetriNetUnfolderBase]: For 2276/2276 co-relation queries the response was YES.
[2024-11-07 23:38:15,091 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1458 conditions, 225 events. 15/225 cut-off events. For 2276/2276 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 700 event pairs, 0 based on Foata normal form. 8/233 useless extension candidates. Maximal degree in co-relation 1429. Up to 70 conditions per place.
[2024-11-07 23:38:15,091 INFO L140 encePairwiseOnDemand]: 53/60 looper letters, 0 selfloop transitions, 0 changer transitions 133/133 dead transitions.
[2024-11-07 23:38:15,091 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 133 transitions, 2287 flow
[2024-11-07 23:38:15,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states.
[2024-11-07 23:38:15,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states.
[2024-11-07 23:38:15,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 733 transitions.
[2024-11-07 23:38:15,092 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4072222222222222
[2024-11-07 23:38:15,092 INFO L175 Difference]: Start difference. First operand has 156 places, 125 transitions, 1903 flow. Second operand 30 states and 733 transitions.
[2024-11-07 23:38:15,092 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 133 transitions, 2287 flow
[2024-11-07 23:38:15,097 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 133 transitions, 1944 flow, removed 13 selfloop flow, removed 23 redundant places.
[2024-11-07 23:38:15,098 INFO L231 Difference]: Finished difference. Result has 103 places, 0 transitions, 0 flow
[2024-11-07 23:38:15,098 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=1561, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=0, PETRI_PLACES=103, PETRI_TRANSITIONS=0}
[2024-11-07 23:38:15,098 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 50 predicate places.
[2024-11-07 23:38:15,098 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 0 transitions, 0 flow
[2024-11-07 23:38:15,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 23.096774193548388) internal successors, (716), 31 states have internal predecessors, (716), 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 23:38:15,101 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 22 remaining)
[2024-11-07 23:38:15,101 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 22 remaining)
[2024-11-07 23:38:15,101 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 22 remaining)
[2024-11-07 23:38:15,101 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 22 remaining)
[2024-11-07 23:38:15,101 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 22 remaining)
[2024-11-07 23:38:15,101 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 22 remaining)
[2024-11-07 23:38:15,101 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 22 remaining)
[2024-11-07 23:38:15,101 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 22 remaining)
[2024-11-07 23:38:15,101 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 22 remaining)
[2024-11-07 23:38:15,101 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 22 remaining)
[2024-11-07 23:38:15,101 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 22 remaining)
[2024-11-07 23:38:15,101 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 22 remaining)
[2024-11-07 23:38:15,101 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 22 remaining)
[2024-11-07 23:38:15,101 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 22 remaining)
[2024-11-07 23:38:15,101 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 22 remaining)
[2024-11-07 23:38:15,101 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 22 remaining)
[2024-11-07 23:38:15,101 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 22 remaining)
[2024-11-07 23:38:15,101 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 22 remaining)
[2024-11-07 23:38:15,102 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 22 remaining)
[2024-11-07 23:38:15,102 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 22 remaining)
[2024-11-07 23:38:15,102 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 22 remaining)
[2024-11-07 23:38:15,102 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 22 remaining)
[2024-11-07 23:38:15,113 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0
[2024-11-07 23:38:15,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,14 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 23:38:15,305 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 23:38:15,308 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances
[2024-11-07 23:38:15,308 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-11-07 23:38:15,312 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 11:38:15 BasicIcfg
[2024-11-07 23:38:15,312 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-07 23:38:15,313 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-07 23:38:15,313 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-11-07 23:38:15,313 INFO L274 PluginConnector]: Witness Printer initialized
[2024-11-07 23:38:15,314 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:37:58" (3/4) ...
[2024-11-07 23:38:15,315 INFO L142 WitnessPrinter]: Generating witness for correct program
[2024-11-07 23:38:15,316 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1
[2024-11-07 23:38:15,316 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2
[2024-11-07 23:38:15,321 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 137 nodes and edges
[2024-11-07 23:38:15,321 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges
[2024-11-07 23:38:15,321 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges
[2024-11-07 23:38:15,321 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges
[2024-11-07 23:38:15,374 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml
[2024-11-07 23:38:15,374 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml
[2024-11-07 23:38:15,374 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-07 23:38:15,376 INFO L158 Benchmark]: Toolchain (without parser) took 18071.21ms. Allocated memory was 100.7MB in the beginning and 570.4MB in the end (delta: 469.8MB). Free memory was 78.3MB in the beginning and 156.0MB in the end (delta: -77.7MB). Peak memory consumption was 386.2MB. Max. memory is 16.1GB.
[2024-11-07 23:38:15,376 INFO L158 Benchmark]: CDTParser took 0.76ms. Allocated memory is still 83.9MB. Free memory is still 47.9MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-07 23:38:15,376 INFO L158 Benchmark]: CACSL2BoogieTranslator took 190.59ms. Allocated memory is still 100.7MB. Free memory was 78.1MB in the beginning and 65.9MB in the end (delta: 12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-07 23:38:15,376 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.05ms. Allocated memory is still 100.7MB. Free memory was 65.9MB in the beginning and 64.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-07 23:38:15,376 INFO L158 Benchmark]: Boogie Preprocessor took 38.74ms. Allocated memory is still 100.7MB. Free memory was 64.3MB in the beginning and 62.3MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-07 23:38:15,376 INFO L158 Benchmark]: RCFGBuilder took 588.48ms. Allocated memory is still 100.7MB. Free memory was 62.2MB in the beginning and 49.0MB in the end (delta: 13.1MB). Peak memory consumption was 29.0MB. Max. memory is 16.1GB.
[2024-11-07 23:38:15,376 INFO L158 Benchmark]: TraceAbstraction took 17158.67ms. Allocated memory was 100.7MB in the beginning and 570.4MB in the end (delta: 469.8MB). Free memory was 48.6MB in the beginning and 160.2MB in the end (delta: -111.6MB). Peak memory consumption was 357.2MB. Max. memory is 16.1GB.
[2024-11-07 23:38:15,376 INFO L158 Benchmark]: Witness Printer took 61.69ms. Allocated memory is still 570.4MB. Free memory was 160.2MB in the beginning and 156.0MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-07 23:38:15,377 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.76ms. Allocated memory is still 83.9MB. Free memory is still 47.9MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 190.59ms. Allocated memory is still 100.7MB. Free memory was 78.1MB in the beginning and 65.9MB in the end (delta: 12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 27.05ms. Allocated memory is still 100.7MB. Free memory was 65.9MB in the beginning and 64.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 38.74ms. Allocated memory is still 100.7MB. Free memory was 64.3MB in the beginning and 62.3MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* RCFGBuilder took 588.48ms. Allocated memory is still 100.7MB. Free memory was 62.2MB in the beginning and 49.0MB in the end (delta: 13.1MB). Peak memory consumption was 29.0MB. Max. memory is 16.1GB.
* TraceAbstraction took 17158.67ms. Allocated memory was 100.7MB in the beginning and 570.4MB in the end (delta: 469.8MB). Free memory was 48.6MB in the beginning and 160.2MB in the end (delta: -111.6MB). Peak memory consumption was 357.2MB. Max. memory is 16.1GB.
* Witness Printer took 61.69ms. Allocated memory is still 570.4MB. Free memory was 160.2MB in the beginning and 156.0MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- PositiveResult [Line: 49]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- PositiveResult [Line: 49]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- PositiveResult [Line: 57]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- PositiveResult [Line: 57]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- PositiveResult [Line: 69]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- PositiveResult [Line: 69]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- PositiveResult [Line: 77]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- PositiveResult [Line: 77]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- PositiveResult [Line: 115]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- PositiveResult [Line: 115]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- PositiveResult [Line: 115]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- PositiveResult [Line: 115]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances
CFG has 5 procedures, 85 locations, 22 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 17.1s, OverallIterations: 22, TraceHistogramMax: 13, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 9.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3505 SdHoareTripleChecker+Valid, 4.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3248 mSDsluCounter, 2864 SdHoareTripleChecker+Invalid, 3.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2826 mSDsCounter, 293 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12443 IncrementalHoareTripleChecker+Invalid, 12736 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 293 mSolverCounterUnsat, 38 mSDtfsCounter, 12443 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 751 GetRequests, 400 SyntacticMatches, 11 SemanticMatches, 340 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2027 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1903occurred in iteration=21, InterpolantAutomatonStates: 243, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 640 NumberOfCodeBlocks, 552 NumberOfCodeBlocksAsserted, 35 NumberOfCheckSat, 829 ConstructedInterpolants, 0 QuantifiedInterpolants, 2768 SizeOfPredicates, 50 NumberOfNonLiveVariables, 1741 ConjunctsInSsa, 93 ConjunctsInUnsatCore, 45 InterpolantComputations, 12 PerfectInterpolantSequences, 638/1180 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
- AllSpecificationsHoldResult: All specifications hold
12 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2024-11-07 23:38:15,399 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE