./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/pthread/sync01.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/sync01.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', '8f929a317f167560539ae4b4d441a695b43dc484839e0d977f902275d758b932']
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/sync01.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 8f929a317f167560539ae4b4d441a695b43dc484839e0d977f902275d758b932
--- Real Ultimate output ---
This is Ultimate 0.3.0-?-4f9af40
[2024-11-07 23:22:46,535 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-07 23:22:46,594 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf
[2024-11-07 23:22:46,598 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-07 23:22:46,598 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-07 23:22:46,612 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-07 23:22:46,612 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-07 23:22:46,612 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-07 23:22:46,612 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-07 23:22:46,613 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-07 23:22:46,613 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-07 23:22:46,613 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-07 23:22:46,613 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-07 23:22:46,613 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-07 23:22:46,613 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-07 23:22:46,613 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-07 23:22:46,613 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-07 23:22:46,613 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-07 23:22:46,614 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-07 23:22:46,614 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-07 23:22:46,614 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-07 23:22:46,614 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-07 23:22:46,614 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-07 23:22:46,614 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-07 23:22:46,614 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-11-07 23:22:46,614 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME
[2024-11-07 23:22:46,614 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-11-07 23:22:46,614 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-07 23:22:46,614 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-07 23:22:46,615 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-07 23:22:46,615 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-07 23:22:46,615 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-07 23:22:46,615 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-07 23:22:46,615 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-07 23:22:46,615 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-07 23:22:46,615 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-07 23:22:46,615 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-07 23:22:46,615 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-07 23:22:46,615 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-07 23:22:46,615 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-07 23:22:46,615 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-07 23:22:46,616 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-07 23:22:46,616 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-07 23:22:46,616 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-07 23:22:46,616 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 -> 8f929a317f167560539ae4b4d441a695b43dc484839e0d977f902275d758b932
[2024-11-07 23:22:46,868 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-07 23:22:46,878 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-07 23:22:46,880 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-07 23:22:46,882 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-07 23:22:46,882 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-07 23:22:46,884 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread/sync01.i
[2024-11-07 23:22:48,082 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-11-07 23:22:48,348 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-07 23:22:48,348 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread/sync01.i
[2024-11-07 23:22:48,365 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b85f5c522/8b986dcd2d1d4e75822aa4da4dbeaaec/FLAGcac1a27f3
[2024-11-07 23:22:48,655 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b85f5c522/8b986dcd2d1d4e75822aa4da4dbeaaec
[2024-11-07 23:22:48,657 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-07 23:22:48,658 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-07 23:22:48,659 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-07 23:22:48,659 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-07 23:22:48,662 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-07 23:22:48,662 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:22:48" (1/1) ...
[2024-11-07 23:22:48,663 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@81e09ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:22:48, skipping insertion in model container
[2024-11-07 23:22:48,663 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:22:48" (1/1) ...
[2024-11-07 23:22:48,691 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-07 23:22:48,971 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-07 23:22:48,988 INFO L200 MainTranslator]: Completed pre-run
[2024-11-07 23:22:49,026 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-07 23:22:49,087 INFO L204 MainTranslator]: Completed translation
[2024-11-07 23:22:49,088 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:22:49 WrapperNode
[2024-11-07 23:22:49,088 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-07 23:22:49,089 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-07 23:22:49,089 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-07 23:22:49,089 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-07 23:22:49,094 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:22:49" (1/1) ...
[2024-11-07 23:22:49,112 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:22:49" (1/1) ...
[2024-11-07 23:22:49,142 INFO L138 Inliner]: procedures = 268, calls = 23, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 254
[2024-11-07 23:22:49,142 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-07 23:22:49,143 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-07 23:22:49,143 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-07 23:22:49,143 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-07 23:22:49,149 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:22:49" (1/1) ...
[2024-11-07 23:22:49,150 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:22:49" (1/1) ...
[2024-11-07 23:22:49,155 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:22:49" (1/1) ...
[2024-11-07 23:22:49,172 INFO L175 MemorySlicer]: Split 7 memory accesses to 2 slices as follows [2, 5]. 71 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5]. The 0 writes are split as follows [0, 0].
[2024-11-07 23:22:49,173 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:22:49" (1/1) ...
[2024-11-07 23:22:49,173 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:22:49" (1/1) ...
[2024-11-07 23:22:49,179 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:22:49" (1/1) ...
[2024-11-07 23:22:49,181 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:22:49" (1/1) ...
[2024-11-07 23:22:49,183 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:22:49" (1/1) ...
[2024-11-07 23:22:49,183 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:22:49" (1/1) ...
[2024-11-07 23:22:49,185 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-07 23:22:49,186 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-07 23:22:49,186 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-07 23:22:49,186 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-07 23:22:49,187 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:22:49" (1/1) ...
[2024-11-07 23:22:49,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-07 23:22:49,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 23:22:49,214 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 23:22:49,217 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 23:22:49,233 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock
[2024-11-07 23:22:49,234 INFO L130 BoogieDeclarations]: Found specification of procedure thread1
[2024-11-07 23:22:49,234 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1
[2024-11-07 23:22:49,234 INFO L130 BoogieDeclarations]: Found specification of procedure thread2
[2024-11-07 23:22:49,234 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2
[2024-11-07 23:22:49,234 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock
[2024-11-07 23:22:49,234 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-07 23:22:49,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-07 23:22:49,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1
[2024-11-07 23:22:49,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-07 23:22:49,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-07 23:22:49,235 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 23:22:49,347 INFO L238 CfgBuilder]: Building ICFG
[2024-11-07 23:22:49,349 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-07 23:22:49,619 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program.
[2024-11-07 23:22:49,619 INFO L287 CfgBuilder]: Performing block encoding
[2024-11-07 23:22:50,626 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-07 23:22:50,627 INFO L316 CfgBuilder]: Removed 2 assume(true) statements.
[2024-11-07 23:22:50,627 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:22:50 BoogieIcfgContainer
[2024-11-07 23:22:50,627 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-07 23:22:50,629 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-07 23:22:50,629 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-07 23:22:50,632 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-07 23:22:50,632 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 11:22:48" (1/3) ...
[2024-11-07 23:22:50,633 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2995e2cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:22:50, skipping insertion in model container
[2024-11-07 23:22:50,633 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:22:49" (2/3) ...
[2024-11-07 23:22:50,633 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2995e2cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:22:50, skipping insertion in model container
[2024-11-07 23:22:50,633 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:22:50" (3/3) ...
[2024-11-07 23:22:50,634 INFO L112 eAbstractionObserver]: Analyzing ICFG sync01.i
[2024-11-07 23:22:50,644 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-07 23:22:50,644 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations.
[2024-11-07 23:22:50,644 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2024-11-07 23:22:50,682 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions.
[2024-11-07 23:22:50,726 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 41 places, 36 transitions, 86 flow
[2024-11-07 23:22:50,796 INFO L124 PetriNetUnfolderBase]: 2/34 cut-off events.
[2024-11-07 23:22:50,797 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES.
[2024-11-07 23:22:50,809 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43 conditions, 34 events. 2/34 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 55 event pairs, 0 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 31. Up to 2 conditions per place.
[2024-11-07 23:22:50,809 INFO L82 GeneralOperation]: Start removeDead. Operand has 41 places, 36 transitions, 86 flow
[2024-11-07 23:22:50,811 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 37 places, 32 transitions, 73 flow
[2024-11-07 23:22:50,820 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-07 23:22:50,836 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;@3ca0455e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-07 23:22:50,840 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations.
[2024-11-07 23:22:50,859 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2024-11-07 23:22:50,860 INFO L124 PetriNetUnfolderBase]: 1/14 cut-off events.
[2024-11-07 23:22:50,860 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-11-07 23:22:50,860 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 23:22:50,860 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2024-11-07 23:22:50,861 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] ===
[2024-11-07 23:22:50,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 23:22:50,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1578365262, now seen corresponding path program 1 times
[2024-11-07 23:22:50,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 23:22:50,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978217412]
[2024-11-07 23:22:50,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:22:50,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 23:22:51,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:22:51,495 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 23:22:51,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 23:22:51,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978217412]
[2024-11-07 23:22:51,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978217412] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 23:22:51,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 23:22:51,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-07 23:22:51,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652349611]
[2024-11-07 23:22:51,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 23:22:51,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-07 23:22:51,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 23:22:51,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-07 23:22:51,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-07 23:22:51,527 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 36
[2024-11-07 23:22:51,529 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 32 transitions, 73 flow. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 23:22:51,529 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 23:22:51,530 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 36
[2024-11-07 23:22:51,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 23:22:51,639 INFO L124 PetriNetUnfolderBase]: 108/234 cut-off events.
[2024-11-07 23:22:51,639 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES.
[2024-11-07 23:22:51,640 INFO L83 FinitePrefix]: Finished finitePrefix Result has 442 conditions, 234 events. 108/234 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 906 event pairs, 46 based on Foata normal form. 14/227 useless extension candidates. Maximal degree in co-relation 419. Up to 124 conditions per place.
[2024-11-07 23:22:51,643 INFO L140 encePairwiseOnDemand]: 32/36 looper letters, 16 selfloop transitions, 2 changer transitions 4/33 dead transitions.
[2024-11-07 23:22:51,643 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 33 transitions, 119 flow
[2024-11-07 23:22:51,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-07 23:22:51,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-11-07 23:22:51,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 63 transitions.
[2024-11-07 23:22:51,652 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334
[2024-11-07 23:22:51,653 INFO L175 Difference]: Start difference. First operand has 37 places, 32 transitions, 73 flow. Second operand 3 states and 63 transitions.
[2024-11-07 23:22:51,653 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 33 transitions, 119 flow
[2024-11-07 23:22:51,657 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 33 transitions, 114 flow, removed 0 selfloop flow, removed 3 redundant places.
[2024-11-07 23:22:51,658 INFO L231 Difference]: Finished difference. Result has 35 places, 25 transitions, 61 flow
[2024-11-07 23:22:51,661 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=61, PETRI_PLACES=35, PETRI_TRANSITIONS=25}
[2024-11-07 23:22:51,664 INFO L277 CegarLoopForPetriNet]: 37 programPoint places, -2 predicate places.
[2024-11-07 23:22:51,665 INFO L471 AbstractCegarLoop]: Abstraction has has 35 places, 25 transitions, 61 flow
[2024-11-07 23:22:51,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 23:22:51,666 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 23:22:51,666 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 23:22:51,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-07 23:22:51,666 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] ===
[2024-11-07 23:22:51,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 23:22:51,666 INFO L85 PathProgramCache]: Analyzing trace with hash -301111533, now seen corresponding path program 1 times
[2024-11-07 23:22:51,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 23:22:51,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686401410]
[2024-11-07 23:22:51,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:22:51,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 23:22:51,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:22:52,096 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 23:22:52,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 23:22:52,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686401410]
[2024-11-07 23:22:52,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686401410] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 23:22:52,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 23:22:52,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-07 23:22:52,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230292350]
[2024-11-07 23:22:52,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 23:22:52,099 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-07 23:22:52,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 23:22:52,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-07 23:22:52,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-07 23:22:52,107 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 36
[2024-11-07 23:22:52,107 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 25 transitions, 61 flow. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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 23:22:52,107 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 23:22:52,107 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 36
[2024-11-07 23:22:52,107 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 23:22:52,215 INFO L124 PetriNetUnfolderBase]: 85/187 cut-off events.
[2024-11-07 23:22:52,215 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES.
[2024-11-07 23:22:52,220 INFO L83 FinitePrefix]: Finished finitePrefix Result has 376 conditions, 187 events. 85/187 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 713 event pairs, 22 based on Foata normal form. 16/189 useless extension candidates. Maximal degree in co-relation 165. Up to 80 conditions per place.
[2024-11-07 23:22:52,222 INFO L140 encePairwiseOnDemand]: 31/36 looper letters, 19 selfloop transitions, 3 changer transitions 0/31 dead transitions.
[2024-11-07 23:22:52,222 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 31 transitions, 117 flow
[2024-11-07 23:22:52,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-07 23:22:52,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-11-07 23:22:52,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 68 transitions.
[2024-11-07 23:22:52,223 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4722222222222222
[2024-11-07 23:22:52,223 INFO L175 Difference]: Start difference. First operand has 35 places, 25 transitions, 61 flow. Second operand 4 states and 68 transitions.
[2024-11-07 23:22:52,223 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 31 transitions, 117 flow
[2024-11-07 23:22:52,224 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 31 transitions, 113 flow, removed 0 selfloop flow, removed 2 redundant places.
[2024-11-07 23:22:52,225 INFO L231 Difference]: Finished difference. Result has 30 places, 23 transitions, 59 flow
[2024-11-07 23:22:52,225 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=53, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=59, PETRI_PLACES=30, PETRI_TRANSITIONS=23}
[2024-11-07 23:22:52,225 INFO L277 CegarLoopForPetriNet]: 37 programPoint places, -7 predicate places.
[2024-11-07 23:22:52,225 INFO L471 AbstractCegarLoop]: Abstraction has has 30 places, 23 transitions, 59 flow
[2024-11-07 23:22:52,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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 23:22:52,225 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 23:22:52,225 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 23:22:52,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-07 23:22:52,226 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] ===
[2024-11-07 23:22:52,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 23:22:52,226 INFO L85 PathProgramCache]: Analyzing trace with hash 606018820, now seen corresponding path program 1 times
[2024-11-07 23:22:52,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 23:22:52,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336330616]
[2024-11-07 23:22:52,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:22:52,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 23:22:52,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:22:52,623 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 23:22:52,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 23:22:52,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336330616]
[2024-11-07 23:22:52,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336330616] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 23:22:52,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 23:22:52,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-07 23:22:52,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321135978]
[2024-11-07 23:22:52,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 23:22:52,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-07 23:22:52,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 23:22:52,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-07 23:22:52,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-07 23:22:52,631 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 36
[2024-11-07 23:22:52,632 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 23 transitions, 59 flow. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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 23:22:52,632 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 23:22:52,632 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 36
[2024-11-07 23:22:52,632 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 23:22:52,731 INFO L124 PetriNetUnfolderBase]: 64/146 cut-off events.
[2024-11-07 23:22:52,731 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES.
[2024-11-07 23:22:52,732 INFO L83 FinitePrefix]: Finished finitePrefix Result has 305 conditions, 146 events. 64/146 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 444 event pairs, 17 based on Foata normal form. 12/154 useless extension candidates. Maximal degree in co-relation 166. Up to 82 conditions per place.
[2024-11-07 23:22:52,732 INFO L140 encePairwiseOnDemand]: 30/36 looper letters, 17 selfloop transitions, 6 changer transitions 0/31 dead transitions.
[2024-11-07 23:22:52,732 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 31 transitions, 123 flow
[2024-11-07 23:22:52,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-07 23:22:52,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-11-07 23:22:52,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 74 transitions.
[2024-11-07 23:22:52,735 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5138888888888888
[2024-11-07 23:22:52,735 INFO L175 Difference]: Start difference. First operand has 30 places, 23 transitions, 59 flow. Second operand 4 states and 74 transitions.
[2024-11-07 23:22:52,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 31 transitions, 123 flow
[2024-11-07 23:22:52,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 31 transitions, 117 flow, removed 0 selfloop flow, removed 3 redundant places.
[2024-11-07 23:22:52,736 INFO L231 Difference]: Finished difference. Result has 32 places, 26 transitions, 91 flow
[2024-11-07 23:22:52,736 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=53, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=91, PETRI_PLACES=32, PETRI_TRANSITIONS=26}
[2024-11-07 23:22:52,737 INFO L277 CegarLoopForPetriNet]: 37 programPoint places, -5 predicate places.
[2024-11-07 23:22:52,737 INFO L471 AbstractCegarLoop]: Abstraction has has 32 places, 26 transitions, 91 flow
[2024-11-07 23:22:52,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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 23:22:52,737 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 23:22:52,737 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 23:22:52,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-07 23:22:52,737 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] ===
[2024-11-07 23:22:52,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 23:22:52,737 INFO L85 PathProgramCache]: Analyzing trace with hash -505439968, now seen corresponding path program 2 times
[2024-11-07 23:22:52,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 23:22:52,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585506952]
[2024-11-07 23:22:52,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:22:52,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 23:22:52,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:22:52,995 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 23:22:52,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 23:22:52,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585506952]
[2024-11-07 23:22:52,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585506952] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 23:22:52,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 23:22:52,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-07 23:22:52,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090869280]
[2024-11-07 23:22:52,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 23:22:52,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-07 23:22:52,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 23:22:52,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-07 23:22:52,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-07 23:22:53,002 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 36
[2024-11-07 23:22:53,003 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 26 transitions, 91 flow. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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 23:22:53,003 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 23:22:53,003 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 36
[2024-11-07 23:22:53,003 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 23:22:53,090 INFO L124 PetriNetUnfolderBase]: 43/123 cut-off events.
[2024-11-07 23:22:53,090 INFO L125 PetriNetUnfolderBase]: For 73/73 co-relation queries the response was YES.
[2024-11-07 23:22:53,092 INFO L83 FinitePrefix]: Finished finitePrefix Result has 299 conditions, 123 events. 43/123 cut-off events. For 73/73 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 355 event pairs, 3 based on Foata normal form. 4/121 useless extension candidates. Maximal degree in co-relation 162. Up to 34 conditions per place.
[2024-11-07 23:22:53,093 INFO L140 encePairwiseOnDemand]: 29/36 looper letters, 15 selfloop transitions, 10 changer transitions 0/33 dead transitions.
[2024-11-07 23:22:53,093 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 33 transitions, 157 flow
[2024-11-07 23:22:53,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-07 23:22:53,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2024-11-07 23:22:53,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 87 transitions.
[2024-11-07 23:22:53,095 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.48333333333333334
[2024-11-07 23:22:53,096 INFO L175 Difference]: Start difference. First operand has 32 places, 26 transitions, 91 flow. Second operand 5 states and 87 transitions.
[2024-11-07 23:22:53,096 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 33 transitions, 157 flow
[2024-11-07 23:22:53,096 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 33 transitions, 155 flow, removed 0 selfloop flow, removed 1 redundant places.
[2024-11-07 23:22:53,097 INFO L231 Difference]: Finished difference. Result has 35 places, 26 transitions, 109 flow
[2024-11-07 23:22:53,097 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=89, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=109, PETRI_PLACES=35, PETRI_TRANSITIONS=26}
[2024-11-07 23:22:53,097 INFO L277 CegarLoopForPetriNet]: 37 programPoint places, -2 predicate places.
[2024-11-07 23:22:53,097 INFO L471 AbstractCegarLoop]: Abstraction has has 35 places, 26 transitions, 109 flow
[2024-11-07 23:22:53,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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 23:22:53,098 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 23:22:53,098 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 23:22:53,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-07 23:22:53,098 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] ===
[2024-11-07 23:22:53,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 23:22:53,100 INFO L85 PathProgramCache]: Analyzing trace with hash -2097592129, now seen corresponding path program 1 times
[2024-11-07 23:22:53,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 23:22:53,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695460799]
[2024-11-07 23:22:53,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:22:53,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 23:22:53,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:22:53,358 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 23:22:53,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 23:22:53,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695460799]
[2024-11-07 23:22:53,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695460799] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 23:22:53,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 23:22:53,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-07 23:22:53,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564085490]
[2024-11-07 23:22:53,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 23:22:53,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-07 23:22:53,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 23:22:53,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-07 23:22:53,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-11-07 23:22:53,379 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 36
[2024-11-07 23:22:53,379 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 26 transitions, 109 flow. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 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 23:22:53,380 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 23:22:53,380 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 36
[2024-11-07 23:22:53,380 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 23:22:53,469 INFO L124 PetriNetUnfolderBase]: 49/125 cut-off events.
[2024-11-07 23:22:53,469 INFO L125 PetriNetUnfolderBase]: For 113/113 co-relation queries the response was YES.
[2024-11-07 23:22:53,470 INFO L83 FinitePrefix]: Finished finitePrefix Result has 349 conditions, 125 events. 49/125 cut-off events. For 113/113 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 353 event pairs, 17 based on Foata normal form. 4/126 useless extension candidates. Maximal degree in co-relation 165. Up to 42 conditions per place.
[2024-11-07 23:22:53,470 INFO L140 encePairwiseOnDemand]: 31/36 looper letters, 20 selfloop transitions, 4 changer transitions 0/30 dead transitions.
[2024-11-07 23:22:53,470 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 30 transitions, 165 flow
[2024-11-07 23:22:53,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-07 23:22:53,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2024-11-07 23:22:53,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 73 transitions.
[2024-11-07 23:22:53,472 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.33796296296296297
[2024-11-07 23:22:53,472 INFO L175 Difference]: Start difference. First operand has 35 places, 26 transitions, 109 flow. Second operand 6 states and 73 transitions.
[2024-11-07 23:22:53,472 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 30 transitions, 165 flow
[2024-11-07 23:22:53,473 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 30 transitions, 135 flow, removed 5 selfloop flow, removed 4 redundant places.
[2024-11-07 23:22:53,473 INFO L231 Difference]: Finished difference. Result has 35 places, 25 transitions, 85 flow
[2024-11-07 23:22:53,474 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=77, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=85, PETRI_PLACES=35, PETRI_TRANSITIONS=25}
[2024-11-07 23:22:53,474 INFO L277 CegarLoopForPetriNet]: 37 programPoint places, -2 predicate places.
[2024-11-07 23:22:53,474 INFO L471 AbstractCegarLoop]: Abstraction has has 35 places, 25 transitions, 85 flow
[2024-11-07 23:22:53,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 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 23:22:53,474 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 23:22:53,474 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 23:22:53,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-07 23:22:53,474 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] ===
[2024-11-07 23:22:53,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 23:22:53,475 INFO L85 PathProgramCache]: Analyzing trace with hash -600845862, now seen corresponding path program 1 times
[2024-11-07 23:22:53,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 23:22:53,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235678195]
[2024-11-07 23:22:53,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:22:53,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 23:22:53,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:22:53,710 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 23:22:53,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 23:22:53,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235678195]
[2024-11-07 23:22:53,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235678195] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 23:22:53,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 23:22:53,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-07 23:22:53,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560564168]
[2024-11-07 23:22:53,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 23:22:53,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-07 23:22:53,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 23:22:53,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-07 23:22:53,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-07 23:22:53,715 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 36
[2024-11-07 23:22:53,715 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 25 transitions, 85 flow. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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 23:22:53,716 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 23:22:53,716 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 36
[2024-11-07 23:22:53,716 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 23:22:53,763 INFO L124 PetriNetUnfolderBase]: 38/107 cut-off events.
[2024-11-07 23:22:53,763 INFO L125 PetriNetUnfolderBase]: For 56/56 co-relation queries the response was YES.
[2024-11-07 23:22:53,764 INFO L83 FinitePrefix]: Finished finitePrefix Result has 264 conditions, 107 events. 38/107 cut-off events. For 56/56 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 330 event pairs, 22 based on Foata normal form. 4/103 useless extension candidates. Maximal degree in co-relation 122. Up to 75 conditions per place.
[2024-11-07 23:22:53,764 INFO L140 encePairwiseOnDemand]: 34/36 looper letters, 0 selfloop transitions, 0 changer transitions 26/26 dead transitions.
[2024-11-07 23:22:53,764 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 26 transitions, 125 flow
[2024-11-07 23:22:53,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-07 23:22:53,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-11-07 23:22:53,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 53 transitions.
[2024-11-07 23:22:53,765 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49074074074074076
[2024-11-07 23:22:53,765 INFO L175 Difference]: Start difference. First operand has 35 places, 25 transitions, 85 flow. Second operand 3 states and 53 transitions.
[2024-11-07 23:22:53,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 26 transitions, 125 flow
[2024-11-07 23:22:53,765 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 26 transitions, 116 flow, removed 1 selfloop flow, removed 4 redundant places.
[2024-11-07 23:22:53,766 INFO L231 Difference]: Finished difference. Result has 32 places, 0 transitions, 0 flow
[2024-11-07 23:22:53,766 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=32, PETRI_TRANSITIONS=0}
[2024-11-07 23:22:53,766 INFO L277 CegarLoopForPetriNet]: 37 programPoint places, -5 predicate places.
[2024-11-07 23:22:53,766 INFO L471 AbstractCegarLoop]: Abstraction has has 32 places, 0 transitions, 0 flow
[2024-11-07 23:22:53,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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 23:22:53,768 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining)
[2024-11-07 23:22:53,769 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining)
[2024-11-07 23:22:53,769 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining)
[2024-11-07 23:22:53,769 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining)
[2024-11-07 23:22:53,769 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining)
[2024-11-07 23:22:53,769 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining)
[2024-11-07 23:22:53,769 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining)
[2024-11-07 23:22:53,769 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining)
[2024-11-07 23:22:53,769 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining)
[2024-11-07 23:22:53,769 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining)
[2024-11-07 23:22:53,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-07 23:22:53,770 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1]
[2024-11-07 23:22:53,773 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances
[2024-11-07 23:22:53,773 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-11-07 23:22:53,776 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 11:22:53 BasicIcfg
[2024-11-07 23:22:53,776 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-07 23:22:53,777 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-07 23:22:53,777 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-11-07 23:22:53,777 INFO L274 PluginConnector]: Witness Printer initialized
[2024-11-07 23:22:53,778 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:22:50" (3/4) ...
[2024-11-07 23:22:53,779 INFO L142 WitnessPrinter]: Generating witness for correct program
[2024-11-07 23:22:53,780 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1
[2024-11-07 23:22:53,781 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2
[2024-11-07 23:22:53,785 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 252 nodes and edges
[2024-11-07 23:22:53,786 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges
[2024-11-07 23:22:53,786 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges
[2024-11-07 23:22:53,786 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges
[2024-11-07 23:22:53,853 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml
[2024-11-07 23:22:53,855 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml
[2024-11-07 23:22:53,855 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-07 23:22:53,856 INFO L158 Benchmark]: Toolchain (without parser) took 5197.72ms. Allocated memory was 109.1MB in the beginning and 671.1MB in the end (delta: 562.0MB). Free memory was 84.2MB in the beginning and 551.1MB in the end (delta: -466.9MB). Peak memory consumption was 90.9MB. Max. memory is 16.1GB.
[2024-11-07 23:22:53,856 INFO L158 Benchmark]: CDTParser took 0.82ms. Allocated memory is still 83.9MB. Free memory is still 48.2MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-07 23:22:53,856 INFO L158 Benchmark]: CACSL2BoogieTranslator took 429.96ms. Allocated memory is still 109.1MB. Free memory was 84.1MB in the beginning and 55.1MB in the end (delta: 29.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB.
[2024-11-07 23:22:53,856 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.98ms. Allocated memory is still 109.1MB. Free memory was 54.9MB in the beginning and 52.3MB in the end (delta: 2.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-07 23:22:53,856 INFO L158 Benchmark]: Boogie Preprocessor took 42.61ms. Allocated memory is still 109.1MB. Free memory was 52.3MB in the beginning and 49.2MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-07 23:22:53,857 INFO L158 Benchmark]: RCFGBuilder took 1441.31ms. Allocated memory was 109.1MB in the beginning and 218.1MB in the end (delta: 109.1MB). Free memory was 49.2MB in the beginning and 91.4MB in the end (delta: -42.3MB). Peak memory consumption was 114.4MB. Max. memory is 16.1GB.
[2024-11-07 23:22:53,857 INFO L158 Benchmark]: TraceAbstraction took 3147.85ms. Allocated memory was 218.1MB in the beginning and 671.1MB in the end (delta: 453.0MB). Free memory was 91.4MB in the beginning and 559.5MB in the end (delta: -468.1MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-07 23:22:53,857 INFO L158 Benchmark]: Witness Printer took 78.20ms. Allocated memory is still 671.1MB. Free memory was 559.5MB in the beginning and 551.1MB in the end (delta: 8.4MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-07 23:22:53,858 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.82ms. Allocated memory is still 83.9MB. Free memory is still 48.2MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 429.96ms. Allocated memory is still 109.1MB. Free memory was 84.1MB in the beginning and 55.1MB in the end (delta: 29.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 52.98ms. Allocated memory is still 109.1MB. Free memory was 54.9MB in the beginning and 52.3MB in the end (delta: 2.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 42.61ms. Allocated memory is still 109.1MB. Free memory was 52.3MB in the beginning and 49.2MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 1441.31ms. Allocated memory was 109.1MB in the beginning and 218.1MB in the end (delta: 109.1MB). Free memory was 49.2MB in the beginning and 91.4MB in the end (delta: -42.3MB). Peak memory consumption was 114.4MB. Max. memory is 16.1GB.
* TraceAbstraction took 3147.85ms. Allocated memory was 218.1MB in the beginning and 671.1MB in the end (delta: 453.0MB). Free memory was 91.4MB in the beginning and 559.5MB in the end (delta: -468.1MB). There was no memory consumed. Max. memory is 16.1GB.
* Witness Printer took 78.20ms. Allocated memory is still 671.1MB. Free memory was 559.5MB in the beginning and 551.1MB in the end (delta: 8.4MB). There was no memory consumed. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- PositiveResult [Line: 938]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- PositiveResult [Line: 938]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- PositiveResult [Line: 948]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- PositiveResult [Line: 948]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances
CFG has 5 procedures, 63 locations, 10 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.0s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 113 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 96 mSDsluCounter, 18 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 16 mSDsCounter, 26 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 309 IncrementalHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 26 mSolverCounterUnsat, 2 mSDtfsCounter, 309 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=109occurred in iteration=4, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 79 NumberOfCodeBlocks, 79 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 73 ConstructedInterpolants, 0 QuantifiedInterpolants, 223 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
- AllSpecificationsHoldResult: All specifications hold
4 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2024-11-07 23:22:53,880 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE