./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/pthread/fib_safe-6.i --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/pthread/fib_safe-6.i', '-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', 'ca933e9c322081d61da01652cda9ceed61707699c680fd4ef3d92d3ccd39b362']
Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread/fib_safe-6.i -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 ca933e9c322081d61da01652cda9ceed61707699c680fd4ef3d92d3ccd39b362
--- Real Ultimate output ---
This is Ultimate 0.3.0-?-4f9af40
[2024-11-07 23:20:51,875 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-07 23:20:51,926 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf
[2024-11-07 23:20:51,930 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-07 23:20:51,930 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-07 23:20:51,946 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-07 23:20:51,947 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-07 23:20:51,947 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-07 23:20:51,947 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-07 23:20:51,948 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-07 23:20:51,948 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-07 23:20:51,948 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-07 23:20:51,949 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-07 23:20:51,949 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-07 23:20:51,949 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-07 23:20:51,949 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-07 23:20:51,949 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-07 23:20:51,950 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-07 23:20:51,950 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-07 23:20:51,950 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-07 23:20:51,950 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-07 23:20:51,950 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-07 23:20:51,950 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-07 23:20:51,950 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-07 23:20:51,950 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-11-07 23:20:51,950 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME
[2024-11-07 23:20:51,951 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-11-07 23:20:51,951 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-07 23:20:51,951 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-07 23:20:51,951 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-07 23:20:51,951 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-07 23:20:51,951 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-07 23:20:51,951 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-07 23:20:51,951 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-07 23:20:51,951 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-07 23:20:51,951 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-07 23:20:51,952 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-07 23:20:51,952 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-07 23:20:51,952 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-07 23:20:51,952 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-07 23:20:51,952 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-07 23:20:51,952 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-07 23:20:51,952 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-07 23:20:51,953 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-07 23:20:51,953 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 -> ca933e9c322081d61da01652cda9ceed61707699c680fd4ef3d92d3ccd39b362
[2024-11-07 23:20:52,187 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-07 23:20:52,194 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-07 23:20:52,196 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-07 23:20:52,198 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-07 23:20:52,198 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-07 23:20:52,200 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread/fib_safe-6.i
[2024-11-07 23:20:53,364 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-11-07 23:20:53,569 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-07 23:20:53,570 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread/fib_safe-6.i
[2024-11-07 23:20:53,578 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a5ddb92b0/8bf30406344b42dbaba1f0ee0230b22a/FLAGa7258c2ff
[2024-11-07 23:20:53,589 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a5ddb92b0/8bf30406344b42dbaba1f0ee0230b22a
[2024-11-07 23:20:53,590 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-07 23:20:53,591 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-07 23:20:53,592 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-07 23:20:53,593 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-07 23:20:53,595 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-07 23:20:53,596 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:20:53" (1/1) ...
[2024-11-07 23:20:53,597 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@586d7026 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:20:53, skipping insertion in model container
[2024-11-07 23:20:53,597 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:20:53" (1/1) ...
[2024-11-07 23:20:53,616 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-07 23:20:53,833 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-07 23:20:53,840 INFO L200 MainTranslator]: Completed pre-run
[2024-11-07 23:20:53,883 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-07 23:20:53,909 INFO L204 MainTranslator]: Completed translation
[2024-11-07 23:20:53,910 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:20:53 WrapperNode
[2024-11-07 23:20:53,910 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-07 23:20:53,911 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-07 23:20:53,911 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-07 23:20:53,911 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-07 23:20:53,915 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:20:53" (1/1) ...
[2024-11-07 23:20:53,925 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:20:53" (1/1) ...
[2024-11-07 23:20:53,943 INFO L138 Inliner]: procedures = 164, calls = 21, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 72
[2024-11-07 23:20:53,944 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-07 23:20:53,944 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-07 23:20:53,945 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-07 23:20:53,945 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-07 23:20:53,951 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:20:53" (1/1) ...
[2024-11-07 23:20:53,951 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:20:53" (1/1) ...
[2024-11-07 23:20:53,952 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:20:53" (1/1) ...
[2024-11-07 23:20:53,969 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-11-07 23:20:53,969 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:20:53" (1/1) ...
[2024-11-07 23:20:53,970 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:20:53" (1/1) ...
[2024-11-07 23:20:53,974 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:20:53" (1/1) ...
[2024-11-07 23:20:53,980 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:20:53" (1/1) ...
[2024-11-07 23:20:53,981 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:20:53" (1/1) ...
[2024-11-07 23:20:53,983 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:20:53" (1/1) ...
[2024-11-07 23:20:53,986 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-07 23:20:53,987 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-07 23:20:53,988 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-07 23:20:53,988 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-07 23:20:53,989 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:20:53" (1/1) ...
[2024-11-07 23:20:53,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-07 23:20:54,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 23:20:54,017 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 23:20:54,020 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 23:20:54,038 INFO L130 BoogieDeclarations]: Found specification of procedure t1
[2024-11-07 23:20:54,041 INFO L138 BoogieDeclarations]: Found implementation of procedure t1
[2024-11-07 23:20:54,041 INFO L130 BoogieDeclarations]: Found specification of procedure t2
[2024-11-07 23:20:54,041 INFO L138 BoogieDeclarations]: Found implementation of procedure t2
[2024-11-07 23:20:54,041 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2024-11-07 23:20:54,041 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-07 23:20:54,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-07 23:20:54,041 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2024-11-07 23:20:54,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-07 23:20:54,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-07 23:20:54,043 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 23:20:54,130 INFO L238 CfgBuilder]: Building ICFG
[2024-11-07 23:20:54,132 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-07 23:20:54,262 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program.
[2024-11-07 23:20:54,263 INFO L287 CfgBuilder]: Performing block encoding
[2024-11-07 23:20:54,361 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-07 23:20:54,363 INFO L316 CfgBuilder]: Removed 3 assume(true) statements.
[2024-11-07 23:20:54,363 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:20:54 BoogieIcfgContainer
[2024-11-07 23:20:54,365 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-07 23:20:54,366 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-07 23:20:54,367 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-07 23:20:54,370 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-07 23:20:54,371 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 11:20:53" (1/3) ...
[2024-11-07 23:20:54,371 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1519ef81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:20:54, skipping insertion in model container
[2024-11-07 23:20:54,371 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:20:53" (2/3) ...
[2024-11-07 23:20:54,372 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1519ef81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:20:54, skipping insertion in model container
[2024-11-07 23:20:54,372 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:20:54" (3/3) ...
[2024-11-07 23:20:54,373 INFO L112 eAbstractionObserver]: Analyzing ICFG fib_safe-6.i
[2024-11-07 23:20:54,384 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-07 23:20:54,384 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations.
[2024-11-07 23:20:54,384 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2024-11-07 23:20:54,426 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2024-11-07 23:20:54,453 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 48 places, 44 transitions, 96 flow
[2024-11-07 23:20:54,479 INFO L124 PetriNetUnfolderBase]: 3/42 cut-off events.
[2024-11-07 23:20:54,481 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-11-07 23:20:54,484 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49 conditions, 42 events. 3/42 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 117 event pairs, 0 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place.
[2024-11-07 23:20:54,484 INFO L82 GeneralOperation]: Start removeDead. Operand has 48 places, 44 transitions, 96 flow
[2024-11-07 23:20:54,488 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 46 places, 42 transitions, 90 flow
[2024-11-07 23:20:54,497 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-07 23:20:54,511 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;@5185c665, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-07 23:20:54,511 INFO L334 AbstractCegarLoop]: Starting to check reachability of 22 error locations.
[2024-11-07 23:20:54,516 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2024-11-07 23:20:54,517 INFO L124 PetriNetUnfolderBase]: 0/12 cut-off events.
[2024-11-07 23:20:54,517 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-11-07 23:20:54,517 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 23:20:54,518 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 23:20:54,518 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] ===
[2024-11-07 23:20:54,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 23:20:54,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1464023297, now seen corresponding path program 1 times
[2024-11-07 23:20:54,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 23:20:54,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844218288]
[2024-11-07 23:20:54,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:20:54,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 23:20:54,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:20:54,712 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 23:20:54,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 23:20:54,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844218288]
[2024-11-07 23:20:54,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844218288] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 23:20:54,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 23:20:54,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-07 23:20:54,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126303025]
[2024-11-07 23:20:54,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 23:20:54,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-07 23:20:54,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 23:20:54,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-07 23:20:54,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-07 23:20:54,751 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 44
[2024-11-07 23:20:54,753 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 42 transitions, 90 flow. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 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 23:20:54,754 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 23:20:54,754 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 44
[2024-11-07 23:20:54,755 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 23:20:55,023 INFO L124 PetriNetUnfolderBase]: 657/1293 cut-off events.
[2024-11-07 23:20:55,023 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES.
[2024-11-07 23:20:55,028 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2312 conditions, 1293 events. 657/1293 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 8039 event pairs, 156 based on Foata normal form. 0/975 useless extension candidates. Maximal degree in co-relation 2296. Up to 514 conditions per place.
[2024-11-07 23:20:55,039 INFO L140 encePairwiseOnDemand]: 36/44 looper letters, 46 selfloop transitions, 5 changer transitions 0/69 dead transitions.
[2024-11-07 23:20:55,039 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 69 transitions, 249 flow
[2024-11-07 23:20:55,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-07 23:20:55,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-11-07 23:20:55,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 135 transitions.
[2024-11-07 23:20:55,050 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7670454545454546
[2024-11-07 23:20:55,051 INFO L175 Difference]: Start difference. First operand has 46 places, 42 transitions, 90 flow. Second operand 4 states and 135 transitions.
[2024-11-07 23:20:55,051 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 69 transitions, 249 flow
[2024-11-07 23:20:55,055 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 69 transitions, 246 flow, removed 0 selfloop flow, removed 2 redundant places.
[2024-11-07 23:20:55,057 INFO L231 Difference]: Finished difference. Result has 48 places, 45 transitions, 119 flow
[2024-11-07 23:20:55,058 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=119, PETRI_PLACES=48, PETRI_TRANSITIONS=45}
[2024-11-07 23:20:55,062 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 2 predicate places.
[2024-11-07 23:20:55,062 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 45 transitions, 119 flow
[2024-11-07 23:20:55,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 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 23:20:55,063 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 23:20:55,063 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 23:20:55,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-07 23:20:55,063 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] ===
[2024-11-07 23:20:55,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 23:20:55,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1801374430, now seen corresponding path program 1 times
[2024-11-07 23:20:55,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 23:20:55,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032962162]
[2024-11-07 23:20:55,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:20:55,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 23:20:55,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:20:55,157 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 23:20:55,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 23:20:55,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032962162]
[2024-11-07 23:20:55,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032962162] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 23:20:55,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 23:20:55,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2024-11-07 23:20:55,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885745970]
[2024-11-07 23:20:55,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 23:20:55,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-07 23:20:55,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 23:20:55,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-07 23:20:55,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-07 23:20:55,164 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 44
[2024-11-07 23:20:55,165 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 45 transitions, 119 flow. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 23:20:55,165 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 23:20:55,165 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 44
[2024-11-07 23:20:55,165 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 23:20:55,383 INFO L124 PetriNetUnfolderBase]: 1169/2451 cut-off events.
[2024-11-07 23:20:55,383 INFO L125 PetriNetUnfolderBase]: For 333/333 co-relation queries the response was YES.
[2024-11-07 23:20:55,387 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4923 conditions, 2451 events. 1169/2451 cut-off events. For 333/333 co-relation queries the response was YES. Maximal size of possible extension queue 170. Compared 18190 event pairs, 379 based on Foata normal form. 53/2095 useless extension candidates. Maximal degree in co-relation 4907. Up to 1025 conditions per place.
[2024-11-07 23:20:55,397 INFO L140 encePairwiseOnDemand]: 41/44 looper letters, 42 selfloop transitions, 2 changer transitions 0/63 dead transitions.
[2024-11-07 23:20:55,398 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 63 transitions, 263 flow
[2024-11-07 23:20:55,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-07 23:20:55,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-11-07 23:20:55,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 102 transitions.
[2024-11-07 23:20:55,399 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7727272727272727
[2024-11-07 23:20:55,399 INFO L175 Difference]: Start difference. First operand has 48 places, 45 transitions, 119 flow. Second operand 3 states and 102 transitions.
[2024-11-07 23:20:55,399 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 63 transitions, 263 flow
[2024-11-07 23:20:55,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 63 transitions, 263 flow, removed 0 selfloop flow, removed 0 redundant places.
[2024-11-07 23:20:55,400 INFO L231 Difference]: Finished difference. Result has 51 places, 46 transitions, 131 flow
[2024-11-07 23:20:55,401 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=119, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=131, PETRI_PLACES=51, PETRI_TRANSITIONS=46}
[2024-11-07 23:20:55,401 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 5 predicate places.
[2024-11-07 23:20:55,401 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 46 transitions, 131 flow
[2024-11-07 23:20:55,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 23:20:55,401 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 23:20:55,401 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 23:20:55,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-07 23:20:55,401 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] ===
[2024-11-07 23:20:55,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 23:20:55,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1822895874, now seen corresponding path program 1 times
[2024-11-07 23:20:55,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 23:20:55,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722513116]
[2024-11-07 23:20:55,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:20:55,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 23:20:55,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:20:55,480 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 23:20:55,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 23:20:55,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722513116]
[2024-11-07 23:20:55,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722513116] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 23:20:55,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 23:20:55,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-07 23:20:55,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114943947]
[2024-11-07 23:20:55,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 23:20:55,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-07 23:20:55,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 23:20:55,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-07 23:20:55,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-07 23:20:55,494 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 44
[2024-11-07 23:20:55,496 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 46 transitions, 131 flow. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 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 23:20:55,496 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 23:20:55,496 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 44
[2024-11-07 23:20:55,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 23:20:55,738 INFO L124 PetriNetUnfolderBase]: 1401/2500 cut-off events.
[2024-11-07 23:20:55,738 INFO L125 PetriNetUnfolderBase]: For 470/520 co-relation queries the response was YES.
[2024-11-07 23:20:55,743 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5615 conditions, 2500 events. 1401/2500 cut-off events. For 470/520 co-relation queries the response was YES. Maximal size of possible extension queue 173. Compared 16320 event pairs, 357 based on Foata normal form. 116/2184 useless extension candidates. Maximal degree in co-relation 5596. Up to 1235 conditions per place.
[2024-11-07 23:20:55,753 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 58 selfloop transitions, 3 changer transitions 0/78 dead transitions.
[2024-11-07 23:20:55,754 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 78 transitions, 347 flow
[2024-11-07 23:20:55,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-07 23:20:55,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-11-07 23:20:55,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 135 transitions.
[2024-11-07 23:20:55,756 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7670454545454546
[2024-11-07 23:20:55,756 INFO L175 Difference]: Start difference. First operand has 51 places, 46 transitions, 131 flow. Second operand 4 states and 135 transitions.
[2024-11-07 23:20:55,756 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 78 transitions, 347 flow
[2024-11-07 23:20:55,758 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 78 transitions, 343 flow, removed 0 selfloop flow, removed 1 redundant places.
[2024-11-07 23:20:55,760 INFO L231 Difference]: Finished difference. Result has 55 places, 48 transitions, 153 flow
[2024-11-07 23:20:55,760 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=129, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=153, PETRI_PLACES=55, PETRI_TRANSITIONS=48}
[2024-11-07 23:20:55,761 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 9 predicate places.
[2024-11-07 23:20:55,761 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 48 transitions, 153 flow
[2024-11-07 23:20:55,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 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 23:20:55,762 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 23:20:55,762 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 23:20:55,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-07 23:20:55,762 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] ===
[2024-11-07 23:20:55,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 23:20:55,762 INFO L85 PathProgramCache]: Analyzing trace with hash 8032759, now seen corresponding path program 1 times
[2024-11-07 23:20:55,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 23:20:55,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299578472]
[2024-11-07 23:20:55,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:20:55,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 23:20:55,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:20:55,825 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 23:20:55,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 23:20:55,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299578472]
[2024-11-07 23:20:55,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299578472] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 23:20:55,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 23:20:55,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2024-11-07 23:20:55,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040762675]
[2024-11-07 23:20:55,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 23:20:55,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-07 23:20:55,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 23:20:55,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-07 23:20:55,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-07 23:20:55,831 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 44
[2024-11-07 23:20:55,831 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 48 transitions, 153 flow. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 23:20:55,832 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 23:20:55,832 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 44
[2024-11-07 23:20:55,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 23:20:55,994 INFO L124 PetriNetUnfolderBase]: 1133/2318 cut-off events.
[2024-11-07 23:20:55,995 INFO L125 PetriNetUnfolderBase]: For 616/766 co-relation queries the response was YES.
[2024-11-07 23:20:55,998 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5144 conditions, 2318 events. 1133/2318 cut-off events. For 616/766 co-relation queries the response was YES. Maximal size of possible extension queue 171. Compared 16948 event pairs, 365 based on Foata normal form. 90/1999 useless extension candidates. Maximal degree in co-relation 5122. Up to 993 conditions per place.
[2024-11-07 23:20:56,007 INFO L140 encePairwiseOnDemand]: 41/44 looper letters, 44 selfloop transitions, 2 changer transitions 0/66 dead transitions.
[2024-11-07 23:20:56,007 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 66 transitions, 308 flow
[2024-11-07 23:20:56,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-07 23:20:56,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-11-07 23:20:56,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 102 transitions.
[2024-11-07 23:20:56,009 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7727272727272727
[2024-11-07 23:20:56,011 INFO L175 Difference]: Start difference. First operand has 55 places, 48 transitions, 153 flow. Second operand 3 states and 102 transitions.
[2024-11-07 23:20:56,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 66 transitions, 308 flow
[2024-11-07 23:20:56,012 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 66 transitions, 305 flow, removed 0 selfloop flow, removed 1 redundant places.
[2024-11-07 23:20:56,013 INFO L231 Difference]: Finished difference. Result has 57 places, 48 transitions, 159 flow
[2024-11-07 23:20:56,013 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=151, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=159, PETRI_PLACES=57, PETRI_TRANSITIONS=48}
[2024-11-07 23:20:56,013 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 11 predicate places.
[2024-11-07 23:20:56,013 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 48 transitions, 159 flow
[2024-11-07 23:20:56,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 23:20:56,013 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 23:20:56,013 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 23:20:56,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-07 23:20:56,014 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] ===
[2024-11-07 23:20:56,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 23:20:56,014 INFO L85 PathProgramCache]: Analyzing trace with hash 266605758, now seen corresponding path program 1 times
[2024-11-07 23:20:56,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 23:20:56,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678055391]
[2024-11-07 23:20:56,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:20:56,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 23:20:56,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:20:56,057 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 23:20:56,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 23:20:56,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678055391]
[2024-11-07 23:20:56,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678055391] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 23:20:56,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 23:20:56,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-07 23:20:56,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649362258]
[2024-11-07 23:20:56,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 23:20:56,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-07 23:20:56,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 23:20:56,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-07 23:20:56,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-07 23:20:56,065 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 44
[2024-11-07 23:20:56,066 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 48 transitions, 159 flow. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 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 23:20:56,066 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 23:20:56,066 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 44
[2024-11-07 23:20:56,066 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 23:20:56,324 INFO L124 PetriNetUnfolderBase]: 2065/3713 cut-off events.
[2024-11-07 23:20:56,324 INFO L125 PetriNetUnfolderBase]: For 1351/1759 co-relation queries the response was YES.
[2024-11-07 23:20:56,328 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8812 conditions, 3713 events. 2065/3713 cut-off events. For 1351/1759 co-relation queries the response was YES. Maximal size of possible extension queue 225. Compared 26402 event pairs, 457 based on Foata normal form. 253/3375 useless extension candidates. Maximal degree in co-relation 8788. Up to 2001 conditions per place.
[2024-11-07 23:20:56,341 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 60 selfloop transitions, 3 changer transitions 0/81 dead transitions.
[2024-11-07 23:20:56,341 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 81 transitions, 399 flow
[2024-11-07 23:20:56,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-07 23:20:56,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-11-07 23:20:56,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 131 transitions.
[2024-11-07 23:20:56,345 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7443181818181818
[2024-11-07 23:20:56,345 INFO L175 Difference]: Start difference. First operand has 57 places, 48 transitions, 159 flow. Second operand 4 states and 131 transitions.
[2024-11-07 23:20:56,345 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 81 transitions, 399 flow
[2024-11-07 23:20:56,346 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 81 transitions, 391 flow, removed 0 selfloop flow, removed 2 redundant places.
[2024-11-07 23:20:56,347 INFO L231 Difference]: Finished difference. Result has 60 places, 50 transitions, 179 flow
[2024-11-07 23:20:56,347 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=155, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=179, PETRI_PLACES=60, PETRI_TRANSITIONS=50}
[2024-11-07 23:20:56,348 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 14 predicate places.
[2024-11-07 23:20:56,348 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 50 transitions, 179 flow
[2024-11-07 23:20:56,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 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 23:20:56,348 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 23:20:56,348 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 23:20:56,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-07 23:20:56,348 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] ===
[2024-11-07 23:20:56,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 23:20:56,349 INFO L85 PathProgramCache]: Analyzing trace with hash 249015829, now seen corresponding path program 1 times
[2024-11-07 23:20:56,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 23:20:56,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67932128]
[2024-11-07 23:20:56,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:20:56,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 23:20:56,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:20:56,382 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 23:20:56,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 23:20:56,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67932128]
[2024-11-07 23:20:56,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67932128] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 23:20:56,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 23:20:56,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-07 23:20:56,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138394430]
[2024-11-07 23:20:56,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 23:20:56,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-07 23:20:56,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 23:20:56,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-07 23:20:56,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-07 23:20:56,388 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 44
[2024-11-07 23:20:56,388 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 50 transitions, 179 flow. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 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 23:20:56,388 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 23:20:56,389 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 44
[2024-11-07 23:20:56,389 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 23:20:56,632 INFO L124 PetriNetUnfolderBase]: 1601/3219 cut-off events.
[2024-11-07 23:20:56,632 INFO L125 PetriNetUnfolderBase]: For 1181/1655 co-relation queries the response was YES.
[2024-11-07 23:20:56,637 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7731 conditions, 3219 events. 1601/3219 cut-off events. For 1181/1655 co-relation queries the response was YES. Maximal size of possible extension queue 223. Compared 24206 event pairs, 227 based on Foata normal form. 335/2961 useless extension candidates. Maximal degree in co-relation 7705. Up to 1673 conditions per place.
[2024-11-07 23:20:56,657 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 62 selfloop transitions, 3 changer transitions 0/85 dead transitions.
[2024-11-07 23:20:56,657 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 85 transitions, 445 flow
[2024-11-07 23:20:56,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-07 23:20:56,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-11-07 23:20:56,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 133 transitions.
[2024-11-07 23:20:56,658 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7556818181818182
[2024-11-07 23:20:56,658 INFO L175 Difference]: Start difference. First operand has 60 places, 50 transitions, 179 flow. Second operand 4 states and 133 transitions.
[2024-11-07 23:20:56,658 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 85 transitions, 445 flow
[2024-11-07 23:20:56,661 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 85 transitions, 441 flow, removed 0 selfloop flow, removed 1 redundant places.
[2024-11-07 23:20:56,662 INFO L231 Difference]: Finished difference. Result has 64 places, 51 transitions, 197 flow
[2024-11-07 23:20:56,663 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=177, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=197, PETRI_PLACES=64, PETRI_TRANSITIONS=51}
[2024-11-07 23:20:56,664 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 18 predicate places.
[2024-11-07 23:20:56,665 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 51 transitions, 197 flow
[2024-11-07 23:20:56,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 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 23:20:56,665 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 23:20:56,665 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 23:20:56,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-07 23:20:56,665 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] ===
[2024-11-07 23:20:56,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 23:20:56,666 INFO L85 PathProgramCache]: Analyzing trace with hash 444542449, now seen corresponding path program 1 times
[2024-11-07 23:20:56,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 23:20:56,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543478436]
[2024-11-07 23:20:56,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:20:56,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 23:20:56,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:20:56,751 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 23:20:56,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 23:20:56,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543478436]
[2024-11-07 23:20:56,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543478436] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 23:20:56,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 23:20:56,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-07 23:20:56,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679130216]
[2024-11-07 23:20:56,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 23:20:56,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-07 23:20:56,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 23:20:56,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-07 23:20:56,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-07 23:20:56,761 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 44
[2024-11-07 23:20:56,762 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 51 transitions, 197 flow. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 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 23:20:56,762 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 23:20:56,762 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 44
[2024-11-07 23:20:56,762 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 23:20:56,950 INFO L124 PetriNetUnfolderBase]: 1121/2195 cut-off events.
[2024-11-07 23:20:56,950 INFO L125 PetriNetUnfolderBase]: For 1435/1757 co-relation queries the response was YES.
[2024-11-07 23:20:56,954 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6017 conditions, 2195 events. 1121/2195 cut-off events. For 1435/1757 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 14756 event pairs, 160 based on Foata normal form. 35/1912 useless extension candidates. Maximal degree in co-relation 5986. Up to 835 conditions per place.
[2024-11-07 23:20:56,961 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 65 selfloop transitions, 6 changer transitions 0/91 dead transitions.
[2024-11-07 23:20:56,961 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 91 transitions, 499 flow
[2024-11-07 23:20:56,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-07 23:20:56,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2024-11-07 23:20:56,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 161 transitions.
[2024-11-07 23:20:56,962 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7318181818181818
[2024-11-07 23:20:56,962 INFO L175 Difference]: Start difference. First operand has 64 places, 51 transitions, 197 flow. Second operand 5 states and 161 transitions.
[2024-11-07 23:20:56,962 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 91 transitions, 499 flow
[2024-11-07 23:20:56,963 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 91 transitions, 489 flow, removed 0 selfloop flow, removed 2 redundant places.
[2024-11-07 23:20:56,964 INFO L231 Difference]: Finished difference. Result has 67 places, 52 transitions, 217 flow
[2024-11-07 23:20:56,964 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=193, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=217, PETRI_PLACES=67, PETRI_TRANSITIONS=52}
[2024-11-07 23:20:56,965 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 21 predicate places.
[2024-11-07 23:20:56,965 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 52 transitions, 217 flow
[2024-11-07 23:20:56,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 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 23:20:56,965 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 23:20:56,965 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 23:20:56,965 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-07 23:20:56,967 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] ===
[2024-11-07 23:20:56,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 23:20:56,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1079587370, now seen corresponding path program 1 times
[2024-11-07 23:20:56,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 23:20:56,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831968367]
[2024-11-07 23:20:56,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:20:56,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 23:20:56,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:20:57,030 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 23:20:57,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 23:20:57,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831968367]
[2024-11-07 23:20:57,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831968367] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 23:20:57,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 23:20:57,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-07 23:20:57,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68554240]
[2024-11-07 23:20:57,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 23:20:57,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-07 23:20:57,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 23:20:57,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-07 23:20:57,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-07 23:20:57,038 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 44
[2024-11-07 23:20:57,039 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 52 transitions, 217 flow. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 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 23:20:57,039 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 23:20:57,039 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 44
[2024-11-07 23:20:57,039 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 23:20:57,215 INFO L124 PetriNetUnfolderBase]: 1167/2324 cut-off events.
[2024-11-07 23:20:57,216 INFO L125 PetriNetUnfolderBase]: For 1787/2048 co-relation queries the response was YES.
[2024-11-07 23:20:57,219 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6629 conditions, 2324 events. 1167/2324 cut-off events. For 1787/2048 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 16002 event pairs, 223 based on Foata normal form. 72/2239 useless extension candidates. Maximal degree in co-relation 6596. Up to 1105 conditions per place.
[2024-11-07 23:20:57,224 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 65 selfloop transitions, 7 changer transitions 0/92 dead transitions.
[2024-11-07 23:20:57,225 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 92 transitions, 520 flow
[2024-11-07 23:20:57,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-07 23:20:57,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2024-11-07 23:20:57,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 162 transitions.
[2024-11-07 23:20:57,226 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7363636363636363
[2024-11-07 23:20:57,226 INFO L175 Difference]: Start difference. First operand has 67 places, 52 transitions, 217 flow. Second operand 5 states and 162 transitions.
[2024-11-07 23:20:57,226 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 92 transitions, 520 flow
[2024-11-07 23:20:57,229 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 92 transitions, 509 flow, removed 0 selfloop flow, removed 3 redundant places.
[2024-11-07 23:20:57,230 INFO L231 Difference]: Finished difference. Result has 69 places, 54 transitions, 242 flow
[2024-11-07 23:20:57,230 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=207, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=242, PETRI_PLACES=69, PETRI_TRANSITIONS=54}
[2024-11-07 23:20:57,231 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 23 predicate places.
[2024-11-07 23:20:57,232 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 54 transitions, 242 flow
[2024-11-07 23:20:57,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 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 23:20:57,232 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 23:20:57,232 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 23:20:57,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-11-07 23:20:57,232 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] ===
[2024-11-07 23:20:57,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 23:20:57,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1079601649, now seen corresponding path program 1 times
[2024-11-07 23:20:57,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 23:20:57,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196604809]
[2024-11-07 23:20:57,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:20:57,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 23:20:57,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:20:57,302 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 23:20:57,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 23:20:57,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196604809]
[2024-11-07 23:20:57,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196604809] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 23:20:57,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 23:20:57,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-07 23:20:57,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983723315]
[2024-11-07 23:20:57,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 23:20:57,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-07 23:20:57,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 23:20:57,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-07 23:20:57,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-07 23:20:57,311 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 44
[2024-11-07 23:20:57,311 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 54 transitions, 242 flow. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 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 23:20:57,311 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 23:20:57,311 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 44
[2024-11-07 23:20:57,311 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 23:20:57,466 INFO L124 PetriNetUnfolderBase]: 1041/2086 cut-off events.
[2024-11-07 23:20:57,467 INFO L125 PetriNetUnfolderBase]: For 2141/2375 co-relation queries the response was YES.
[2024-11-07 23:20:57,471 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6218 conditions, 2086 events. 1041/2086 cut-off events. For 2141/2375 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 14082 event pairs, 265 based on Foata normal form. 70/2020 useless extension candidates. Maximal degree in co-relation 6184. Up to 1215 conditions per place.
[2024-11-07 23:20:57,478 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 53 selfloop transitions, 5 changer transitions 0/78 dead transitions.
[2024-11-07 23:20:57,478 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 78 transitions, 454 flow
[2024-11-07 23:20:57,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-07 23:20:57,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2024-11-07 23:20:57,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 148 transitions.
[2024-11-07 23:20:57,480 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6727272727272727
[2024-11-07 23:20:57,480 INFO L175 Difference]: Start difference. First operand has 69 places, 54 transitions, 242 flow. Second operand 5 states and 148 transitions.
[2024-11-07 23:20:57,480 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 78 transitions, 454 flow
[2024-11-07 23:20:57,484 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 78 transitions, 439 flow, removed 2 selfloop flow, removed 3 redundant places.
[2024-11-07 23:20:57,486 INFO L231 Difference]: Finished difference. Result has 71 places, 54 transitions, 243 flow
[2024-11-07 23:20:57,486 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=227, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=243, PETRI_PLACES=71, PETRI_TRANSITIONS=54}
[2024-11-07 23:20:57,487 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 25 predicate places.
[2024-11-07 23:20:57,488 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 54 transitions, 243 flow
[2024-11-07 23:20:57,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 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 23:20:57,488 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 23:20:57,488 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 23:20:57,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-11-07 23:20:57,488 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] ===
[2024-11-07 23:20:57,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 23:20:57,489 INFO L85 PathProgramCache]: Analyzing trace with hash 1079601650, now seen corresponding path program 1 times
[2024-11-07 23:20:57,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 23:20:57,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092689600]
[2024-11-07 23:20:57,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:20:57,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 23:20:57,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:20:57,551 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 23:20:57,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 23:20:57,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092689600]
[2024-11-07 23:20:57,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092689600] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 23:20:57,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 23:20:57,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-07 23:20:57,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508600857]
[2024-11-07 23:20:57,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 23:20:57,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-07 23:20:57,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 23:20:57,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-07 23:20:57,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2024-11-07 23:20:57,558 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 44
[2024-11-07 23:20:57,558 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 54 transitions, 243 flow. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 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 23:20:57,558 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 23:20:57,558 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 44
[2024-11-07 23:20:57,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 23:20:57,715 INFO L124 PetriNetUnfolderBase]: 1083/2163 cut-off events.
[2024-11-07 23:20:57,715 INFO L125 PetriNetUnfolderBase]: For 2515/2758 co-relation queries the response was YES.
[2024-11-07 23:20:57,720 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6507 conditions, 2163 events. 1083/2163 cut-off events. For 2515/2758 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 14609 event pairs, 258 based on Foata normal form. 70/2146 useless extension candidates. Maximal degree in co-relation 6472. Up to 1229 conditions per place.
[2024-11-07 23:20:57,727 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 62 selfloop transitions, 7 changer transitions 0/89 dead transitions.
[2024-11-07 23:20:57,727 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 89 transitions, 524 flow
[2024-11-07 23:20:57,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-07 23:20:57,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2024-11-07 23:20:57,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 158 transitions.
[2024-11-07 23:20:57,728 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7181818181818181
[2024-11-07 23:20:57,728 INFO L175 Difference]: Start difference. First operand has 71 places, 54 transitions, 243 flow. Second operand 5 states and 158 transitions.
[2024-11-07 23:20:57,728 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 89 transitions, 524 flow
[2024-11-07 23:20:57,730 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 89 transitions, 510 flow, removed 0 selfloop flow, removed 4 redundant places.
[2024-11-07 23:20:57,731 INFO L231 Difference]: Finished difference. Result has 72 places, 56 transitions, 265 flow
[2024-11-07 23:20:57,731 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=231, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=265, PETRI_PLACES=72, PETRI_TRANSITIONS=56}
[2024-11-07 23:20:57,732 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 26 predicate places.
[2024-11-07 23:20:57,732 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 56 transitions, 265 flow
[2024-11-07 23:20:57,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 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 23:20:57,733 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 23:20:57,733 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 23:20:57,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2024-11-07 23:20:57,733 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] ===
[2024-11-07 23:20:57,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 23:20:57,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1022324864, now seen corresponding path program 1 times
[2024-11-07 23:20:57,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 23:20:57,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312432909]
[2024-11-07 23:20:57,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:20:57,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 23:20:57,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:20:57,773 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 23:20:57,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 23:20:57,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312432909]
[2024-11-07 23:20:57,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312432909] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-07 23:20:57,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1729959503]
[2024-11-07 23:20:57,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:20:57,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 23:20:57,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 23:20:57,776 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 23:20:57,777 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 23:20:57,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:20:57,828 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-07 23:20:57,830 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-07 23:20:57,901 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 23:20:57,901 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-07 23:20:57,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1729959503] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 23:20:57,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-07 23:20:57,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 4
[2024-11-07 23:20:57,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465129053]
[2024-11-07 23:20:57,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 23:20:57,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-07 23:20:57,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 23:20:57,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-07 23:20:57,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-11-07 23:20:57,908 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 44
[2024-11-07 23:20:57,909 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 56 transitions, 265 flow. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 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 23:20:57,909 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 23:20:57,909 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 44
[2024-11-07 23:20:57,909 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 23:20:58,073 INFO L124 PetriNetUnfolderBase]: 1083/2422 cut-off events.
[2024-11-07 23:20:58,074 INFO L125 PetriNetUnfolderBase]: For 3742/4021 co-relation queries the response was YES.
[2024-11-07 23:20:58,079 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7013 conditions, 2422 events. 1083/2422 cut-off events. For 3742/4021 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 18068 event pairs, 187 based on Foata normal form. 172/2509 useless extension candidates. Maximal degree in co-relation 6980. Up to 1216 conditions per place.
[2024-11-07 23:20:58,087 INFO L140 encePairwiseOnDemand]: 41/44 looper letters, 54 selfloop transitions, 2 changer transitions 0/77 dead transitions.
[2024-11-07 23:20:58,088 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 77 transitions, 509 flow
[2024-11-07 23:20:58,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-07 23:20:58,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-11-07 23:20:58,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 120 transitions.
[2024-11-07 23:20:58,089 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6818181818181818
[2024-11-07 23:20:58,089 INFO L175 Difference]: Start difference. First operand has 72 places, 56 transitions, 265 flow. Second operand 4 states and 120 transitions.
[2024-11-07 23:20:58,089 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 77 transitions, 509 flow
[2024-11-07 23:20:58,092 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 77 transitions, 489 flow, removed 4 selfloop flow, removed 2 redundant places.
[2024-11-07 23:20:58,095 INFO L231 Difference]: Finished difference. Result has 72 places, 55 transitions, 254 flow
[2024-11-07 23:20:58,096 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=254, PETRI_PLACES=72, PETRI_TRANSITIONS=55}
[2024-11-07 23:20:58,096 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 26 predicate places.
[2024-11-07 23:20:58,096 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 55 transitions, 254 flow
[2024-11-07 23:20:58,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 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 23:20:58,097 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 23:20:58,097 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 23:20:58,109 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 23:20:58,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10
[2024-11-07 23:20:58,301 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] ===
[2024-11-07 23:20:58,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 23:20:58,301 INFO L85 PathProgramCache]: Analyzing trace with hash -1387157528, now seen corresponding path program 1 times
[2024-11-07 23:20:58,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 23:20:58,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186153158]
[2024-11-07 23:20:58,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:20:58,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 23:20:58,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:20:58,350 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 23:20:58,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 23:20:58,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186153158]
[2024-11-07 23:20:58,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186153158] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-07 23:20:58,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1765809527]
[2024-11-07 23:20:58,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:20:58,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 23:20:58,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 23:20:58,353 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 23:20:58,354 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 23:20:58,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:20:58,396 INFO L255 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-07 23:20:58,397 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-07 23:20:58,420 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 23:20:58,420 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-07 23:20:58,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1765809527] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 23:20:58,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-07 23:20:58,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7
[2024-11-07 23:20:58,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210946688]
[2024-11-07 23:20:58,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 23:20:58,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-07 23:20:58,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 23:20:58,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-07 23:20:58,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2024-11-07 23:20:58,431 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 44
[2024-11-07 23:20:58,431 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 55 transitions, 254 flow. Second operand has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 6 states have internal predecessors, (124), 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 23:20:58,431 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 23:20:58,431 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 44
[2024-11-07 23:20:58,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 23:20:58,654 INFO L124 PetriNetUnfolderBase]: 1453/2628 cut-off events.
[2024-11-07 23:20:58,654 INFO L125 PetriNetUnfolderBase]: For 4353/4704 co-relation queries the response was YES.
[2024-11-07 23:20:58,659 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8380 conditions, 2628 events. 1453/2628 cut-off events. For 4353/4704 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 17226 event pairs, 311 based on Foata normal form. 134/2659 useless extension candidates. Maximal degree in co-relation 8347. Up to 1048 conditions per place.
[2024-11-07 23:20:58,668 INFO L140 encePairwiseOnDemand]: 40/44 looper letters, 84 selfloop transitions, 5 changer transitions 0/106 dead transitions.
[2024-11-07 23:20:58,668 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 106 transitions, 678 flow
[2024-11-07 23:20:58,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-07 23:20:58,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2024-11-07 23:20:58,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 182 transitions.
[2024-11-07 23:20:58,670 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6893939393939394
[2024-11-07 23:20:58,670 INFO L175 Difference]: Start difference. First operand has 72 places, 55 transitions, 254 flow. Second operand 6 states and 182 transitions.
[2024-11-07 23:20:58,670 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 106 transitions, 678 flow
[2024-11-07 23:20:58,674 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 106 transitions, 672 flow, removed 0 selfloop flow, removed 2 redundant places.
[2024-11-07 23:20:58,675 INFO L231 Difference]: Finished difference. Result has 74 places, 54 transitions, 257 flow
[2024-11-07 23:20:58,675 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=247, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=257, PETRI_PLACES=74, PETRI_TRANSITIONS=54}
[2024-11-07 23:20:58,676 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 28 predicate places.
[2024-11-07 23:20:58,676 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 54 transitions, 257 flow
[2024-11-07 23:20:58,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 6 states have internal predecessors, (124), 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 23:20:58,676 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 23:20:58,676 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 23:20:58,688 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2024-11-07 23:20:58,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 23:20:58,880 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] ===
[2024-11-07 23:20:58,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 23:20:58,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1627299989, now seen corresponding path program 1 times
[2024-11-07 23:20:58,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 23:20:58,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170645050]
[2024-11-07 23:20:58,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:20:58,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 23:20:58,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:20:58,938 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 23:20:58,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 23:20:58,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170645050]
[2024-11-07 23:20:58,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170645050] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-07 23:20:58,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [276262090]
[2024-11-07 23:20:58,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:20:58,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 23:20:58,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 23:20:58,940 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 23:20:58,942 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 23:20:58,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:20:58,989 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-07 23:20:58,990 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-07 23:20:59,050 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 23:20:59,050 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-07 23:20:59,095 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 23:20:59,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [276262090] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-07 23:20:59,096 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-07 23:20:59,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 6
[2024-11-07 23:20:59,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211216405]
[2024-11-07 23:20:59,096 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-07 23:20:59,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-07 23:20:59,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 23:20:59,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-07 23:20:59,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56
[2024-11-07 23:20:59,108 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 44
[2024-11-07 23:20:59,108 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 54 transitions, 257 flow. Second operand has 8 states, 8 states have (on average 23.375) internal successors, (187), 8 states have internal predecessors, (187), 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 23:20:59,108 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 23:20:59,108 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 44
[2024-11-07 23:20:59,108 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 23:20:59,555 INFO L124 PetriNetUnfolderBase]: 2907/6208 cut-off events.
[2024-11-07 23:20:59,555 INFO L125 PetriNetUnfolderBase]: For 10495/11093 co-relation queries the response was YES.
[2024-11-07 23:20:59,567 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17999 conditions, 6208 events. 2907/6208 cut-off events. For 10495/11093 co-relation queries the response was YES. Maximal size of possible extension queue 244. Compared 50628 event pairs, 187 based on Foata normal form. 367/6490 useless extension candidates. Maximal degree in co-relation 17966. Up to 1217 conditions per place.
[2024-11-07 23:20:59,640 INFO L140 encePairwiseOnDemand]: 41/44 looper letters, 129 selfloop transitions, 5 changer transitions 0/153 dead transitions.
[2024-11-07 23:20:59,640 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 153 transitions, 1087 flow
[2024-11-07 23:20:59,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-07 23:20:59,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2024-11-07 23:20:59,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 207 transitions.
[2024-11-07 23:20:59,641 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7840909090909091
[2024-11-07 23:20:59,641 INFO L175 Difference]: Start difference. First operand has 74 places, 54 transitions, 257 flow. Second operand 6 states and 207 transitions.
[2024-11-07 23:20:59,641 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 153 transitions, 1087 flow
[2024-11-07 23:20:59,646 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 153 transitions, 1078 flow, removed 0 selfloop flow, removed 3 redundant places.
[2024-11-07 23:20:59,647 INFO L231 Difference]: Finished difference. Result has 79 places, 57 transitions, 288 flow
[2024-11-07 23:20:59,647 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=288, PETRI_PLACES=79, PETRI_TRANSITIONS=57}
[2024-11-07 23:20:59,648 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 33 predicate places.
[2024-11-07 23:20:59,648 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 57 transitions, 288 flow
[2024-11-07 23:20:59,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 23.375) internal successors, (187), 8 states have internal predecessors, (187), 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 23:20:59,648 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 23:20:59,648 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 23:20:59,660 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2024-11-07 23:20:59,848 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 23:20:59,849 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] ===
[2024-11-07 23:20:59,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 23:20:59,849 INFO L85 PathProgramCache]: Analyzing trace with hash -52210084, now seen corresponding path program 1 times
[2024-11-07 23:20:59,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 23:20:59,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070551804]
[2024-11-07 23:20:59,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:20:59,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 23:20:59,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:20:59,871 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-07 23:20:59,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 23:20:59,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070551804]
[2024-11-07 23:20:59,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070551804] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 23:20:59,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 23:20:59,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-07 23:20:59,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773650822]
[2024-11-07 23:20:59,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 23:20:59,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-07 23:20:59,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 23:20:59,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-07 23:20:59,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-07 23:20:59,878 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 44
[2024-11-07 23:20:59,878 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 57 transitions, 288 flow. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 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 23:20:59,879 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 23:20:59,879 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 44
[2024-11-07 23:20:59,879 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 23:21:00,463 INFO L124 PetriNetUnfolderBase]: 4097/7261 cut-off events.
[2024-11-07 23:21:00,464 INFO L125 PetriNetUnfolderBase]: For 13419/14315 co-relation queries the response was YES.
[2024-11-07 23:21:00,477 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23652 conditions, 7261 events. 4097/7261 cut-off events. For 13419/14315 co-relation queries the response was YES. Maximal size of possible extension queue 258. Compared 52374 event pairs, 2101 based on Foata normal form. 306/7400 useless extension candidates. Maximal degree in co-relation 23616. Up to 3923 conditions per place.
[2024-11-07 23:21:00,500 INFO L140 encePairwiseOnDemand]: 39/44 looper letters, 77 selfloop transitions, 6 changer transitions 0/99 dead transitions.
[2024-11-07 23:21:00,500 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 99 transitions, 682 flow
[2024-11-07 23:21:00,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-07 23:21:00,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-11-07 23:21:00,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 124 transitions.
[2024-11-07 23:21:00,503 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7045454545454546
[2024-11-07 23:21:00,503 INFO L175 Difference]: Start difference. First operand has 79 places, 57 transitions, 288 flow. Second operand 4 states and 124 transitions.
[2024-11-07 23:21:00,503 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 99 transitions, 682 flow
[2024-11-07 23:21:00,512 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 99 transitions, 646 flow, removed 13 selfloop flow, removed 3 redundant places.
[2024-11-07 23:21:00,513 INFO L231 Difference]: Finished difference. Result has 79 places, 57 transitions, 288 flow
[2024-11-07 23:21:00,513 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=288, PETRI_PLACES=79, PETRI_TRANSITIONS=57}
[2024-11-07 23:21:00,514 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 33 predicate places.
[2024-11-07 23:21:00,514 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 57 transitions, 288 flow
[2024-11-07 23:21:00,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 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 23:21:00,515 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 23:21:00,515 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 23:21:00,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2024-11-07 23:21:00,515 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting t2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] ===
[2024-11-07 23:21:00,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 23:21:00,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1228200713, now seen corresponding path program 1 times
[2024-11-07 23:21:00,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 23:21:00,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271960045]
[2024-11-07 23:21:00,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:21:00,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 23:21:00,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:21:00,563 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 23:21:00,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 23:21:00,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271960045]
[2024-11-07 23:21:00,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271960045] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-07 23:21:00,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1436801164]
[2024-11-07 23:21:00,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:21:00,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 23:21:00,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 23:21:00,567 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 23:21:00,570 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 23:21:00,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:21:00,618 INFO L255 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-07 23:21:00,619 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-07 23:21:00,645 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 23:21:00,646 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-07 23:21:00,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1436801164] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 23:21:00,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-07 23:21:00,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7
[2024-11-07 23:21:00,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574085392]
[2024-11-07 23:21:00,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 23:21:00,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-07 23:21:00,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 23:21:00,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-07 23:21:00,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2024-11-07 23:21:00,656 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 44
[2024-11-07 23:21:00,656 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 57 transitions, 288 flow. Second operand has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 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 23:21:00,656 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 23:21:00,656 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 44
[2024-11-07 23:21:00,657 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 23:21:01,155 INFO L124 PetriNetUnfolderBase]: 3691/6641 cut-off events.
[2024-11-07 23:21:01,156 INFO L125 PetriNetUnfolderBase]: For 13177/13600 co-relation queries the response was YES.
[2024-11-07 23:21:01,167 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21306 conditions, 6641 events. 3691/6641 cut-off events. For 13177/13600 co-relation queries the response was YES. Maximal size of possible extension queue 238. Compared 48736 event pairs, 815 based on Foata normal form. 162/6591 useless extension candidates. Maximal degree in co-relation 21270. Up to 2628 conditions per place.
[2024-11-07 23:21:01,194 INFO L140 encePairwiseOnDemand]: 40/44 looper letters, 90 selfloop transitions, 5 changer transitions 0/111 dead transitions.
[2024-11-07 23:21:01,195 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 111 transitions, 769 flow
[2024-11-07 23:21:01,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-07 23:21:01,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2024-11-07 23:21:01,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 176 transitions.
[2024-11-07 23:21:01,198 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666
[2024-11-07 23:21:01,198 INFO L175 Difference]: Start difference. First operand has 79 places, 57 transitions, 288 flow. Second operand 6 states and 176 transitions.
[2024-11-07 23:21:01,198 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 111 transitions, 769 flow
[2024-11-07 23:21:01,207 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 111 transitions, 755 flow, removed 0 selfloop flow, removed 2 redundant places.
[2024-11-07 23:21:01,208 INFO L231 Difference]: Finished difference. Result has 81 places, 56 transitions, 286 flow
[2024-11-07 23:21:01,209 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=276, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=286, PETRI_PLACES=81, PETRI_TRANSITIONS=56}
[2024-11-07 23:21:01,209 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 35 predicate places.
[2024-11-07 23:21:01,209 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 56 transitions, 286 flow
[2024-11-07 23:21:01,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 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 23:21:01,209 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 23:21:01,210 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 23:21:01,222 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 23:21:01,413 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,SelfDestructingSolverStorable14
[2024-11-07 23:21:01,414 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] ===
[2024-11-07 23:21:01,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 23:21:01,415 INFO L85 PathProgramCache]: Analyzing trace with hash -1093307593, now seen corresponding path program 1 times
[2024-11-07 23:21:01,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 23:21:01,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769850340]
[2024-11-07 23:21:01,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:21:01,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 23:21:01,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:21:01,461 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 23:21:01,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 23:21:01,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769850340]
[2024-11-07 23:21:01,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769850340] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-07 23:21:01,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [143350695]
[2024-11-07 23:21:01,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:21:01,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 23:21:01,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 23:21:01,464 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 23:21:01,465 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 23:21:01,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:21:01,513 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-07 23:21:01,514 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-07 23:21:01,537 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 23:21:01,538 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-07 23:21:01,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [143350695] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 23:21:01,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-07 23:21:01,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8
[2024-11-07 23:21:01,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544063374]
[2024-11-07 23:21:01,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 23:21:01,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-07 23:21:01,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 23:21:01,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-07 23:21:01,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72
[2024-11-07 23:21:01,545 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 44
[2024-11-07 23:21:01,545 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 56 transitions, 286 flow. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 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 23:21:01,546 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 23:21:01,546 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 44
[2024-11-07 23:21:01,546 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 23:21:02,045 INFO L124 PetriNetUnfolderBase]: 3819/6579 cut-off events.
[2024-11-07 23:21:02,045 INFO L125 PetriNetUnfolderBase]: For 14016/14223 co-relation queries the response was YES.
[2024-11-07 23:21:02,066 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22099 conditions, 6579 events. 3819/6579 cut-off events. For 14016/14223 co-relation queries the response was YES. Maximal size of possible extension queue 239. Compared 45437 event pairs, 1663 based on Foata normal form. 228/6439 useless extension candidates. Maximal degree in co-relation 22062. Up to 3155 conditions per place.
[2024-11-07 23:21:02,102 INFO L140 encePairwiseOnDemand]: 40/44 looper letters, 53 selfloop transitions, 8 changer transitions 0/77 dead transitions.
[2024-11-07 23:21:02,103 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 77 transitions, 539 flow
[2024-11-07 23:21:02,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-07 23:21:02,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-11-07 23:21:02,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 113 transitions.
[2024-11-07 23:21:02,105 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6420454545454546
[2024-11-07 23:21:02,105 INFO L175 Difference]: Start difference. First operand has 81 places, 56 transitions, 286 flow. Second operand 4 states and 113 transitions.
[2024-11-07 23:21:02,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 77 transitions, 539 flow
[2024-11-07 23:21:02,120 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 77 transitions, 533 flow, removed 0 selfloop flow, removed 3 redundant places.
[2024-11-07 23:21:02,121 INFO L231 Difference]: Finished difference. Result has 80 places, 55 transitions, 293 flow
[2024-11-07 23:21:02,121 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=277, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=293, PETRI_PLACES=80, PETRI_TRANSITIONS=55}
[2024-11-07 23:21:02,121 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 34 predicate places.
[2024-11-07 23:21:02,122 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 55 transitions, 293 flow
[2024-11-07 23:21:02,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 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 23:21:02,122 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 23:21:02,122 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 23:21:02,134 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2024-11-07 23:21:02,326 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,SelfDestructingSolverStorable15
[2024-11-07 23:21:02,326 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting t2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] ===
[2024-11-07 23:21:02,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 23:21:02,326 INFO L85 PathProgramCache]: Analyzing trace with hash 381587199, now seen corresponding path program 1 times
[2024-11-07 23:21:02,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 23:21:02,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336053956]
[2024-11-07 23:21:02,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:21:02,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 23:21:02,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:21:02,386 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 23:21:02,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 23:21:02,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336053956]
[2024-11-07 23:21:02,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336053956] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-07 23:21:02,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1136039565]
[2024-11-07 23:21:02,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:21:02,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 23:21:02,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 23:21:02,389 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 23:21:02,389 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 23:21:02,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:21:02,433 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-07 23:21:02,434 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-07 23:21:02,502 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 23:21:02,503 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-07 23:21:02,573 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 23:21:02,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1136039565] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-07 23:21:02,574 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-07 23:21:02,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13
[2024-11-07 23:21:02,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694154248]
[2024-11-07 23:21:02,575 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-07 23:21:02,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states
[2024-11-07 23:21:02,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 23:21:02,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2024-11-07 23:21:02,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182
[2024-11-07 23:21:02,597 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 44
[2024-11-07 23:21:02,597 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 55 transitions, 293 flow. Second operand has 14 states, 14 states have (on average 22.642857142857142) internal successors, (317), 14 states have internal predecessors, (317), 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 23:21:02,598 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 23:21:02,598 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 44
[2024-11-07 23:21:02,598 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 23:21:04,633 INFO L124 PetriNetUnfolderBase]: 11247/21497 cut-off events.
[2024-11-07 23:21:04,633 INFO L125 PetriNetUnfolderBase]: For 54578/55667 co-relation queries the response was YES.
[2024-11-07 23:21:04,688 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74606 conditions, 21497 events. 11247/21497 cut-off events. For 54578/55667 co-relation queries the response was YES. Maximal size of possible extension queue 722. Compared 191863 event pairs, 341 based on Foata normal form. 1442/22882 useless extension candidates. Maximal degree in co-relation 74567. Up to 4201 conditions per place.
[2024-11-07 23:21:04,761 INFO L140 encePairwiseOnDemand]: 35/44 looper letters, 393 selfloop transitions, 71 changer transitions 0/480 dead transitions.
[2024-11-07 23:21:04,762 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 480 transitions, 3763 flow
[2024-11-07 23:21:04,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states.
[2024-11-07 23:21:04,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states.
[2024-11-07 23:21:04,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 905 transitions.
[2024-11-07 23:21:04,764 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.734577922077922
[2024-11-07 23:21:04,764 INFO L175 Difference]: Start difference. First operand has 80 places, 55 transitions, 293 flow. Second operand 28 states and 905 transitions.
[2024-11-07 23:21:04,764 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 480 transitions, 3763 flow
[2024-11-07 23:21:04,806 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 480 transitions, 3411 flow, removed 0 selfloop flow, removed 3 redundant places.
[2024-11-07 23:21:04,809 INFO L231 Difference]: Finished difference. Result has 120 places, 127 transitions, 1145 flow
[2024-11-07 23:21:04,809 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=277, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=1145, PETRI_PLACES=120, PETRI_TRANSITIONS=127}
[2024-11-07 23:21:04,809 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 74 predicate places.
[2024-11-07 23:21:04,809 INFO L471 AbstractCegarLoop]: Abstraction has has 120 places, 127 transitions, 1145 flow
[2024-11-07 23:21:04,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 22.642857142857142) internal successors, (317), 14 states have internal predecessors, (317), 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 23:21:04,810 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 23:21:04,810 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 23:21:04,822 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0
[2024-11-07 23:21:05,013 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,SelfDestructingSolverStorable16
[2024-11-07 23:21:05,014 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting t2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] ===
[2024-11-07 23:21:05,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 23:21:05,014 INFO L85 PathProgramCache]: Analyzing trace with hash -1139380794, now seen corresponding path program 1 times
[2024-11-07 23:21:05,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 23:21:05,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100347827]
[2024-11-07 23:21:05,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:21:05,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 23:21:05,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:21:05,058 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 23:21:05,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 23:21:05,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100347827]
[2024-11-07 23:21:05,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100347827] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-07 23:21:05,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [167706557]
[2024-11-07 23:21:05,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:21:05,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 23:21:05,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 23:21:05,061 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 23:21:05,062 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 23:21:05,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:21:05,101 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-07 23:21:05,102 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-07 23:21:05,172 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 23:21:05,172 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-07 23:21:05,231 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 23:21:05,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [167706557] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-07 23:21:05,231 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-07 23:21:05,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13
[2024-11-07 23:21:05,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984728027]
[2024-11-07 23:21:05,231 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-07 23:21:05,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states
[2024-11-07 23:21:05,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 23:21:05,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2024-11-07 23:21:05,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182
[2024-11-07 23:21:05,250 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 44
[2024-11-07 23:21:05,251 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 127 transitions, 1145 flow. Second operand has 14 states, 14 states have (on average 22.642857142857142) internal successors, (317), 14 states have internal predecessors, (317), 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 23:21:05,251 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 23:21:05,251 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 44
[2024-11-07 23:21:05,251 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 23:21:07,268 INFO L124 PetriNetUnfolderBase]: 10527/20471 cut-off events.
[2024-11-07 23:21:07,268 INFO L125 PetriNetUnfolderBase]: For 212868/214080 co-relation queries the response was YES.
[2024-11-07 23:21:07,590 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87501 conditions, 20471 events. 10527/20471 cut-off events. For 212868/214080 co-relation queries the response was YES. Maximal size of possible extension queue 695. Compared 184151 event pairs, 413 based on Foata normal form. 1962/22412 useless extension candidates. Maximal degree in co-relation 87444. Up to 5328 conditions per place.
[2024-11-07 23:21:07,652 INFO L140 encePairwiseOnDemand]: 35/44 looper letters, 163 selfloop transitions, 46 changer transitions 0/225 dead transitions.
[2024-11-07 23:21:07,652 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 225 transitions, 2318 flow
[2024-11-07 23:21:07,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2024-11-07 23:21:07,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states.
[2024-11-07 23:21:07,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 353 transitions.
[2024-11-07 23:21:07,653 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6685606060606061
[2024-11-07 23:21:07,654 INFO L175 Difference]: Start difference. First operand has 120 places, 127 transitions, 1145 flow. Second operand 12 states and 353 transitions.
[2024-11-07 23:21:07,654 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 225 transitions, 2318 flow
[2024-11-07 23:21:07,997 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 225 transitions, 1963 flow, removed 154 selfloop flow, removed 12 redundant places.
[2024-11-07 23:21:08,002 INFO L231 Difference]: Finished difference. Result has 117 places, 110 transitions, 1005 flow
[2024-11-07 23:21:08,003 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=549, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1005, PETRI_PLACES=117, PETRI_TRANSITIONS=110}
[2024-11-07 23:21:08,003 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 71 predicate places.
[2024-11-07 23:21:08,003 INFO L471 AbstractCegarLoop]: Abstraction has has 117 places, 110 transitions, 1005 flow
[2024-11-07 23:21:08,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 22.642857142857142) internal successors, (317), 14 states have internal predecessors, (317), 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 23:21:08,003 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 23:21:08,003 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 23:21:08,015 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0
[2024-11-07 23:21:08,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 23:21:08,204 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting t2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] ===
[2024-11-07 23:21:08,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 23:21:08,204 INFO L85 PathProgramCache]: Analyzing trace with hash 580483896, now seen corresponding path program 1 times
[2024-11-07 23:21:08,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 23:21:08,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112759620]
[2024-11-07 23:21:08,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:21:08,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 23:21:08,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:21:08,224 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-07 23:21:08,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 23:21:08,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112759620]
[2024-11-07 23:21:08,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112759620] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 23:21:08,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 23:21:08,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-07 23:21:08,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983472442]
[2024-11-07 23:21:08,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 23:21:08,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-07 23:21:08,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 23:21:08,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-07 23:21:08,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-07 23:21:08,230 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 44
[2024-11-07 23:21:08,230 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 110 transitions, 1005 flow. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 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 23:21:08,230 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 23:21:08,230 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 44
[2024-11-07 23:21:08,230 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 23:21:10,675 INFO L124 PetriNetUnfolderBase]: 16719/28403 cut-off events.
[2024-11-07 23:21:10,675 INFO L125 PetriNetUnfolderBase]: For 222920/224114 co-relation queries the response was YES.
[2024-11-07 23:21:10,812 INFO L83 FinitePrefix]: Finished finitePrefix Result has 116070 conditions, 28403 events. 16719/28403 cut-off events. For 222920/224114 co-relation queries the response was YES. Maximal size of possible extension queue 902. Compared 238679 event pairs, 5881 based on Foata normal form. 972/29009 useless extension candidates. Maximal degree in co-relation 116016. Up to 12541 conditions per place.
[2024-11-07 23:21:10,934 INFO L140 encePairwiseOnDemand]: 39/44 looper letters, 166 selfloop transitions, 6 changer transitions 0/186 dead transitions.
[2024-11-07 23:21:10,934 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 186 transitions, 2029 flow
[2024-11-07 23:21:10,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-07 23:21:10,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-11-07 23:21:10,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 116 transitions.
[2024-11-07 23:21:10,935 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6590909090909091
[2024-11-07 23:21:10,935 INFO L175 Difference]: Start difference. First operand has 117 places, 110 transitions, 1005 flow. Second operand 4 states and 116 transitions.
[2024-11-07 23:21:10,935 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 186 transitions, 2029 flow
[2024-11-07 23:21:11,432 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 186 transitions, 1787 flow, removed 109 selfloop flow, removed 7 redundant places.
[2024-11-07 23:21:11,434 INFO L231 Difference]: Finished difference. Result has 113 places, 110 transitions, 851 flow
[2024-11-07 23:21:11,434 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=831, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=851, PETRI_PLACES=113, PETRI_TRANSITIONS=110}
[2024-11-07 23:21:11,434 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 67 predicate places.
[2024-11-07 23:21:11,434 INFO L471 AbstractCegarLoop]: Abstraction has has 113 places, 110 transitions, 851 flow
[2024-11-07 23:21:11,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 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 23:21:11,435 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 23:21:11,435 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 23:21:11,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18
[2024-11-07 23:21:11,435 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] ===
[2024-11-07 23:21:11,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 23:21:11,435 INFO L85 PathProgramCache]: Analyzing trace with hash 467203270, now seen corresponding path program 1 times
[2024-11-07 23:21:11,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 23:21:11,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872546672]
[2024-11-07 23:21:11,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:21:11,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 23:21:11,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:21:11,471 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-07 23:21:11,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 23:21:11,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872546672]
[2024-11-07 23:21:11,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872546672] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 23:21:11,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 23:21:11,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-07 23:21:11,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858967984]
[2024-11-07 23:21:11,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 23:21:11,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-07 23:21:11,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 23:21:11,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-07 23:21:11,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-07 23:21:11,477 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 44
[2024-11-07 23:21:11,478 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 110 transitions, 851 flow. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 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 23:21:11,478 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 23:21:11,478 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 44
[2024-11-07 23:21:11,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 23:21:13,612 INFO L124 PetriNetUnfolderBase]: 13442/23808 cut-off events.
[2024-11-07 23:21:13,613 INFO L125 PetriNetUnfolderBase]: For 207598/207598 co-relation queries the response was YES.
[2024-11-07 23:21:13,704 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95005 conditions, 23808 events. 13442/23808 cut-off events. For 207598/207598 co-relation queries the response was YES. Maximal size of possible extension queue 748. Compared 201368 event pairs, 2818 based on Foata normal form. 0/23649 useless extension candidates. Maximal degree in co-relation 94954. Up to 10429 conditions per place.
[2024-11-07 23:21:13,785 INFO L140 encePairwiseOnDemand]: 39/44 looper letters, 239 selfloop transitions, 9 changer transitions 0/264 dead transitions.
[2024-11-07 23:21:13,785 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 264 transitions, 2747 flow
[2024-11-07 23:21:13,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-07 23:21:13,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-11-07 23:21:13,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 119 transitions.
[2024-11-07 23:21:13,786 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6761363636363636
[2024-11-07 23:21:13,786 INFO L175 Difference]: Start difference. First operand has 113 places, 110 transitions, 851 flow. Second operand 4 states and 119 transitions.
[2024-11-07 23:21:13,786 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 264 transitions, 2747 flow
[2024-11-07 23:21:13,983 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 264 transitions, 2675 flow, removed 30 selfloop flow, removed 2 redundant places.
[2024-11-07 23:21:13,985 INFO L231 Difference]: Finished difference. Result has 114 places, 110 transitions, 845 flow
[2024-11-07 23:21:13,985 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=819, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=845, PETRI_PLACES=114, PETRI_TRANSITIONS=110}
[2024-11-07 23:21:13,985 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 68 predicate places.
[2024-11-07 23:21:13,985 INFO L471 AbstractCegarLoop]: Abstraction has has 114 places, 110 transitions, 845 flow
[2024-11-07 23:21:13,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 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 23:21:13,985 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 23:21:13,985 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 23:21:13,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19
[2024-11-07 23:21:13,985 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting t2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] ===
[2024-11-07 23:21:13,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 23:21:13,985 INFO L85 PathProgramCache]: Analyzing trace with hash 749651250, now seen corresponding path program 1 times
[2024-11-07 23:21:13,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 23:21:13,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142305726]
[2024-11-07 23:21:13,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:21:13,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 23:21:13,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:21:14,046 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 23:21:14,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 23:21:14,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142305726]
[2024-11-07 23:21:14,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142305726] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-07 23:21:14,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1673570381]
[2024-11-07 23:21:14,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:21:14,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 23:21:14,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 23:21:14,048 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 23:21:14,049 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 23:21:14,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:21:14,089 INFO L255 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-07 23:21:14,090 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-07 23:21:14,164 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 23:21:14,165 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-07 23:21:14,237 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 23:21:14,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1673570381] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-07 23:21:14,237 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-07 23:21:14,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16
[2024-11-07 23:21:14,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263909319]
[2024-11-07 23:21:14,237 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-07 23:21:14,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states
[2024-11-07 23:21:14,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 23:21:14,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants.
[2024-11-07 23:21:14,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=179, Unknown=0, NotChecked=0, Total=272
[2024-11-07 23:21:14,260 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 44
[2024-11-07 23:21:14,261 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 110 transitions, 845 flow. Second operand has 17 states, 17 states have (on average 22.529411764705884) internal successors, (383), 17 states have internal predecessors, (383), 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 23:21:14,261 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 23:21:14,261 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 44
[2024-11-07 23:21:14,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 23:21:16,871 INFO L124 PetriNetUnfolderBase]: 14167/27349 cut-off events.
[2024-11-07 23:21:16,872 INFO L125 PetriNetUnfolderBase]: For 174170/174170 co-relation queries the response was YES.
[2024-11-07 23:21:17,034 INFO L83 FinitePrefix]: Finished finitePrefix Result has 107269 conditions, 27349 events. 14167/27349 cut-off events. For 174170/174170 co-relation queries the response was YES. Maximal size of possible extension queue 875. Compared 253429 event pairs, 503 based on Foata normal form. 1216/28508 useless extension candidates. Maximal degree in co-relation 107214. Up to 8281 conditions per place.
[2024-11-07 23:21:17,144 INFO L140 encePairwiseOnDemand]: 37/44 looper letters, 312 selfloop transitions, 56 changer transitions 0/384 dead transitions.
[2024-11-07 23:21:17,144 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 384 transitions, 3259 flow
[2024-11-07 23:21:17,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states.
[2024-11-07 23:21:17,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states.
[2024-11-07 23:21:17,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 652 transitions.
[2024-11-07 23:21:17,147 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7056277056277056
[2024-11-07 23:21:17,147 INFO L175 Difference]: Start difference. First operand has 114 places, 110 transitions, 845 flow. Second operand 21 states and 652 transitions.
[2024-11-07 23:21:17,147 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 384 transitions, 3259 flow
[2024-11-07 23:21:17,729 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 384 transitions, 3041 flow, removed 0 selfloop flow, removed 2 redundant places.
[2024-11-07 23:21:17,731 INFO L231 Difference]: Finished difference. Result has 137 places, 126 transitions, 1177 flow
[2024-11-07 23:21:17,731 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=771, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1177, PETRI_PLACES=137, PETRI_TRANSITIONS=126}
[2024-11-07 23:21:17,732 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 91 predicate places.
[2024-11-07 23:21:17,732 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 126 transitions, 1177 flow
[2024-11-07 23:21:17,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 22.529411764705884) internal successors, (383), 17 states have internal predecessors, (383), 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 23:21:17,732 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 23:21:17,732 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 23:21:17,744 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 23:21:17,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 23:21:17,932 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] ===
[2024-11-07 23:21:17,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 23:21:17,933 INFO L85 PathProgramCache]: Analyzing trace with hash -179984683, now seen corresponding path program 1 times
[2024-11-07 23:21:17,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 23:21:17,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585916984]
[2024-11-07 23:21:17,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:21:17,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 23:21:17,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:21:18,009 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 23:21:18,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 23:21:18,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585916984]
[2024-11-07 23:21:18,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585916984] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-07 23:21:18,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1176906008]
[2024-11-07 23:21:18,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:21:18,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 23:21:18,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 23:21:18,011 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 23:21:18,012 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 23:21:18,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:21:18,057 INFO L255 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-11-07 23:21:18,057 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-07 23:21:18,158 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 23:21:18,158 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-07 23:21:18,254 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 23:21:18,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1176906008] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-07 23:21:18,254 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-07 23:21:18,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 19
[2024-11-07 23:21:18,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388542852]
[2024-11-07 23:21:18,255 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-07 23:21:18,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states
[2024-11-07 23:21:18,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 23:21:18,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants.
[2024-11-07 23:21:18,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=265, Unknown=0, NotChecked=0, Total=380
[2024-11-07 23:21:18,290 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 44
[2024-11-07 23:21:18,291 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 126 transitions, 1177 flow. Second operand has 20 states, 20 states have (on average 22.45) internal successors, (449), 20 states have internal predecessors, (449), 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 23:21:18,291 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 23:21:18,291 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 44
[2024-11-07 23:21:18,291 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 23:21:23,910 INFO L124 PetriNetUnfolderBase]: 27307/52855 cut-off events.
[2024-11-07 23:21:23,910 INFO L125 PetriNetUnfolderBase]: For 613306/613306 co-relation queries the response was YES.
[2024-11-07 23:21:24,283 INFO L83 FinitePrefix]: Finished finitePrefix Result has 208907 conditions, 52855 events. 27307/52855 cut-off events. For 613306/613306 co-relation queries the response was YES. Maximal size of possible extension queue 1558. Compared 528859 event pairs, 1331 based on Foata normal form. 3420/56182 useless extension candidates. Maximal degree in co-relation 208844. Up to 7651 conditions per place.
[2024-11-07 23:21:24,449 INFO L140 encePairwiseOnDemand]: 37/44 looper letters, 529 selfloop transitions, 124 changer transitions 0/669 dead transitions.
[2024-11-07 23:21:24,450 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 669 transitions, 5712 flow
[2024-11-07 23:21:24,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states.
[2024-11-07 23:21:24,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states.
[2024-11-07 23:21:24,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 1159 transitions.
[2024-11-07 23:21:24,451 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.711916461916462
[2024-11-07 23:21:24,451 INFO L175 Difference]: Start difference. First operand has 137 places, 126 transitions, 1177 flow. Second operand 37 states and 1159 transitions.
[2024-11-07 23:21:24,451 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 669 transitions, 5712 flow
[2024-11-07 23:21:25,524 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 669 transitions, 5598 flow, removed 37 selfloop flow, removed 12 redundant places.
[2024-11-07 23:21:25,528 INFO L231 Difference]: Finished difference. Result has 175 places, 188 transitions, 2231 flow
[2024-11-07 23:21:25,528 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=1053, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=37, PETRI_FLOW=2231, PETRI_PLACES=175, PETRI_TRANSITIONS=188}
[2024-11-07 23:21:25,528 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 129 predicate places.
[2024-11-07 23:21:25,528 INFO L471 AbstractCegarLoop]: Abstraction has has 175 places, 188 transitions, 2231 flow
[2024-11-07 23:21:25,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 22.45) internal successors, (449), 20 states have internal predecessors, (449), 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 23:21:25,529 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 23:21:25,529 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 23:21:25,540 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 23:21:25,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 23:21:25,732 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting t2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] ===
[2024-11-07 23:21:25,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 23:21:25,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1623322012, now seen corresponding path program 1 times
[2024-11-07 23:21:25,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 23:21:25,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917078841]
[2024-11-07 23:21:25,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:21:25,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 23:21:25,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:21:25,820 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 23:21:25,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 23:21:25,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917078841]
[2024-11-07 23:21:25,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917078841] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-07 23:21:25,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [575287197]
[2024-11-07 23:21:25,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:21:25,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 23:21:25,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 23:21:25,822 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 23:21:25,823 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 23:21:25,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:21:25,865 INFO L255 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 8 conjuncts are in the unsatisfiable core
[2024-11-07 23:21:25,866 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-07 23:21:25,972 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 23:21:25,972 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-07 23:21:26,068 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 23:21:26,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [575287197] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-07 23:21:26,069 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-07 23:21:26,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 22
[2024-11-07 23:21:26,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921803792]
[2024-11-07 23:21:26,069 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-07 23:21:26,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states
[2024-11-07 23:21:26,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 23:21:26,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants.
[2024-11-07 23:21:26,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=357, Unknown=0, NotChecked=0, Total=506
[2024-11-07 23:21:26,104 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 44
[2024-11-07 23:21:26,105 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 188 transitions, 2231 flow. Second operand has 23 states, 23 states have (on average 22.391304347826086) internal successors, (515), 23 states have internal predecessors, (515), 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 23:21:26,105 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 23:21:26,105 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 44
[2024-11-07 23:21:26,105 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 23:21:38,973 INFO L124 PetriNetUnfolderBase]: 54019/105829 cut-off events.
[2024-11-07 23:21:38,973 INFO L125 PetriNetUnfolderBase]: For 1771096/1771096 co-relation queries the response was YES.
[2024-11-07 23:21:40,045 INFO L83 FinitePrefix]: Finished finitePrefix Result has 443904 conditions, 105829 events. 54019/105829 cut-off events. For 1771096/1771096 co-relation queries the response was YES. Maximal size of possible extension queue 3022. Compared 1170212 event pairs, 1727 based on Foata normal form. 3690/109426 useless extension candidates. Maximal degree in co-relation 443824. Up to 13693 conditions per place.
[2024-11-07 23:21:40,395 INFO L140 encePairwiseOnDemand]: 37/44 looper letters, 586 selfloop transitions, 256 changer transitions 0/858 dead transitions.
[2024-11-07 23:21:40,395 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 858 transitions, 8746 flow
[2024-11-07 23:21:40,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states.
[2024-11-07 23:21:40,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states.
[2024-11-07 23:21:40,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 1225 transitions.
[2024-11-07 23:21:40,397 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7138694638694638
[2024-11-07 23:21:40,397 INFO L175 Difference]: Start difference. First operand has 175 places, 188 transitions, 2231 flow. Second operand 39 states and 1225 transitions.
[2024-11-07 23:21:40,397 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 858 transitions, 8746 flow