./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/pthread-wmm/safe036.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-wmm/safe036.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', '1118c32f43b2d6844c8e6b0e5b4fae8199d058f7b991e3c8d975cf675dc5221a']
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-wmm/safe036.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 1118c32f43b2d6844c8e6b0e5b4fae8199d058f7b991e3c8d975cf675dc5221a
--- Real Ultimate output ---
This is Ultimate 0.3.0-?-4f9af40
[2024-11-07 23:28:31,653 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-07 23:28:31,742 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf
[2024-11-07 23:28:31,746 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-07 23:28:31,746 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-07 23:28:31,758 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-07 23:28:31,759 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-07 23:28:31,759 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-07 23:28:31,760 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-07 23:28:31,760 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-07 23:28:31,760 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-07 23:28:31,760 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-07 23:28:31,760 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-07 23:28:31,760 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-07 23:28:31,760 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-07 23:28:31,760 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-07 23:28:31,761 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-07 23:28:31,761 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-07 23:28:31,761 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-07 23:28:31,761 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-07 23:28:31,761 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-07 23:28:31,761 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-07 23:28:31,761 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-07 23:28:31,761 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-07 23:28:31,761 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-11-07 23:28:31,761 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME
[2024-11-07 23:28:31,761 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-11-07 23:28:31,762 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-07 23:28:31,762 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-07 23:28:31,762 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-07 23:28:31,762 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-07 23:28:31,762 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-07 23:28:31,762 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-07 23:28:31,762 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-07 23:28:31,762 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-07 23:28:31,762 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-07 23:28:31,762 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-07 23:28:31,762 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-07 23:28:31,763 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-07 23:28:31,763 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-07 23:28:31,763 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-07 23:28:31,763 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-07 23:28:31,763 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-07 23:28:31,763 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-07 23:28:31,764 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 -> 1118c32f43b2d6844c8e6b0e5b4fae8199d058f7b991e3c8d975cf675dc5221a
[2024-11-07 23:28:32,002 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-07 23:28:32,010 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-07 23:28:32,011 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-07 23:28:32,013 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-07 23:28:32,013 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-07 23:28:32,014 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe036.i
[2024-11-07 23:28:33,126 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-11-07 23:28:33,314 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-07 23:28:33,315 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe036.i
[2024-11-07 23:28:33,324 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5b32884db/47d793214d0b471185ebf327e68980af/FLAG1fa377523
[2024-11-07 23:28:33,336 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5b32884db/47d793214d0b471185ebf327e68980af
[2024-11-07 23:28:33,338 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-07 23:28:33,340 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-07 23:28:33,341 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-07 23:28:33,341 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-07 23:28:33,344 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-07 23:28:33,344 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:28:33" (1/1) ...
[2024-11-07 23:28:33,345 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1faa8dc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:28:33, skipping insertion in model container
[2024-11-07 23:28:33,345 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:28:33" (1/1) ...
[2024-11-07 23:28:33,373 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-07 23:28:33,560 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-07 23:28:33,565 INFO L200 MainTranslator]: Completed pre-run
[2024-11-07 23:28:33,605 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-07 23:28:33,634 INFO L204 MainTranslator]: Completed translation
[2024-11-07 23:28:33,635 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:28:33 WrapperNode
[2024-11-07 23:28:33,635 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-07 23:28:33,637 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-07 23:28:33,637 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-07 23:28:33,637 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-07 23:28:33,642 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:28:33" (1/1) ...
[2024-11-07 23:28:33,652 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:28:33" (1/1) ...
[2024-11-07 23:28:33,667 INFO L138 Inliner]: procedures = 174, calls = 37, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 52
[2024-11-07 23:28:33,668 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-07 23:28:33,669 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-07 23:28:33,669 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-07 23:28:33,669 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-07 23:28:33,675 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:28:33" (1/1) ...
[2024-11-07 23:28:33,675 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:28:33" (1/1) ...
[2024-11-07 23:28:33,679 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:28:33" (1/1) ...
[2024-11-07 23:28:33,693 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 23:28:33,694 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:28:33" (1/1) ...
[2024-11-07 23:28:33,694 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:28:33" (1/1) ...
[2024-11-07 23:28:33,699 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:28:33" (1/1) ...
[2024-11-07 23:28:33,700 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:28:33" (1/1) ...
[2024-11-07 23:28:33,705 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:28:33" (1/1) ...
[2024-11-07 23:28:33,705 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:28:33" (1/1) ...
[2024-11-07 23:28:33,706 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-07 23:28:33,707 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-07 23:28:33,707 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-07 23:28:33,707 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-07 23:28:33,708 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:28:33" (1/1) ...
[2024-11-07 23:28:33,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-07 23:28:33,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 23:28:33,738 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 23:28:33,741 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 23:28:33,760 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2024-11-07 23:28:33,760 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-07 23:28:33,760 INFO L130 BoogieDeclarations]: Found specification of procedure P0
[2024-11-07 23:28:33,761 INFO L138 BoogieDeclarations]: Found implementation of procedure P0
[2024-11-07 23:28:33,761 INFO L130 BoogieDeclarations]: Found specification of procedure P1
[2024-11-07 23:28:33,761 INFO L138 BoogieDeclarations]: Found implementation of procedure P1
[2024-11-07 23:28:33,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-07 23:28:33,761 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2024-11-07 23:28:33,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-07 23:28:33,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-07 23:28:33,764 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 23:28:33,865 INFO L238 CfgBuilder]: Building ICFG
[2024-11-07 23:28:33,866 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-07 23:28:33,946 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program.
[2024-11-07 23:28:33,946 INFO L287 CfgBuilder]: Performing block encoding
[2024-11-07 23:28:34,008 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-07 23:28:34,008 INFO L316 CfgBuilder]: Removed 0 assume(true) statements.
[2024-11-07 23:28:34,009 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:28:34 BoogieIcfgContainer
[2024-11-07 23:28:34,009 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-07 23:28:34,010 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-07 23:28:34,010 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-07 23:28:34,013 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-07 23:28:34,013 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 11:28:33" (1/3) ...
[2024-11-07 23:28:34,014 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e276ff9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:28:34, skipping insertion in model container
[2024-11-07 23:28:34,014 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:28:33" (2/3) ...
[2024-11-07 23:28:34,014 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e276ff9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:28:34, skipping insertion in model container
[2024-11-07 23:28:34,014 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:28:34" (3/3) ...
[2024-11-07 23:28:34,014 INFO L112 eAbstractionObserver]: Analyzing ICFG safe036.i
[2024-11-07 23:28:34,023 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-07 23:28:34,023 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations.
[2024-11-07 23:28:34,023 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2024-11-07 23:28:34,068 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2024-11-07 23:28:34,093 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 37 places, 30 transitions, 68 flow
[2024-11-07 23:28:34,116 INFO L124 PetriNetUnfolderBase]: 0/28 cut-off events.
[2024-11-07 23:28:34,121 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-11-07 23:28:34,122 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35 conditions, 28 events. 0/28 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 55 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place.
[2024-11-07 23:28:34,122 INFO L82 GeneralOperation]: Start removeDead. Operand has 37 places, 30 transitions, 68 flow
[2024-11-07 23:28:34,126 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 35 places, 28 transitions, 62 flow
[2024-11-07 23:28:34,135 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-07 23:28:34,143 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;@7aa348e0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-07 23:28:34,143 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations.
[2024-11-07 23:28:34,148 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2024-11-07 23:28:34,148 INFO L124 PetriNetUnfolderBase]: 0/17 cut-off events.
[2024-11-07 23:28:34,148 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-11-07 23:28:34,148 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 23:28:34,149 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 23:28:34,149 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] ===
[2024-11-07 23:28:34,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 23:28:34,153 INFO L85 PathProgramCache]: Analyzing trace with hash -1989862501, now seen corresponding path program 1 times
[2024-11-07 23:28:34,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 23:28:34,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460522761]
[2024-11-07 23:28:34,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:28:34,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 23:28:34,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:28:34,328 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 23:28:34,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 23:28:34,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460522761]
[2024-11-07 23:28:34,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460522761] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 23:28:34,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 23:28:34,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2024-11-07 23:28:34,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570339886]
[2024-11-07 23:28:34,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 23:28:34,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-07 23:28:34,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 23:28:34,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-07 23:28:34,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-07 23:28:34,364 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 30
[2024-11-07 23:28:34,366 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 28 transitions, 62 flow. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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 23:28:34,366 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 23:28:34,366 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 30
[2024-11-07 23:28:34,366 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 23:28:34,449 INFO L124 PetriNetUnfolderBase]: 84/172 cut-off events.
[2024-11-07 23:28:34,449 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES.
[2024-11-07 23:28:34,451 INFO L83 FinitePrefix]: Finished finitePrefix Result has 343 conditions, 172 events. 84/172 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 736 event pairs, 24 based on Foata normal form. 0/134 useless extension candidates. Maximal degree in co-relation 333. Up to 153 conditions per place.
[2024-11-07 23:28:34,452 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 17 selfloop transitions, 3 changer transitions 2/35 dead transitions.
[2024-11-07 23:28:34,452 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 35 transitions, 123 flow
[2024-11-07 23:28:34,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-07 23:28:34,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-11-07 23:28:34,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 71 transitions.
[2024-11-07 23:28:34,460 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7888888888888889
[2024-11-07 23:28:34,461 INFO L175 Difference]: Start difference. First operand has 35 places, 28 transitions, 62 flow. Second operand 3 states and 71 transitions.
[2024-11-07 23:28:34,461 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 35 transitions, 123 flow
[2024-11-07 23:28:34,463 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 35 transitions, 120 flow, removed 0 selfloop flow, removed 2 redundant places.
[2024-11-07 23:28:34,465 INFO L231 Difference]: Finished difference. Result has 36 places, 28 transitions, 77 flow
[2024-11-07 23:28:34,466 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=77, PETRI_PLACES=36, PETRI_TRANSITIONS=28}
[2024-11-07 23:28:34,470 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 1 predicate places.
[2024-11-07 23:28:34,470 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 28 transitions, 77 flow
[2024-11-07 23:28:34,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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 23:28:34,471 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 23:28:34,471 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 23:28:34,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-07 23:28:34,471 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] ===
[2024-11-07 23:28:34,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 23:28:34,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1983760114, now seen corresponding path program 1 times
[2024-11-07 23:28:34,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 23:28:34,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62653041]
[2024-11-07 23:28:34,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:28:34,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 23:28:34,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:28:34,556 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 23:28:34,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 23:28:34,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62653041]
[2024-11-07 23:28:34,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62653041] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 23:28:34,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 23:28:34,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-07 23:28:34,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240954673]
[2024-11-07 23:28:34,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 23:28:34,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-07 23:28:34,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 23:28:34,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-07 23:28:34,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-07 23:28:34,563 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 30
[2024-11-07 23:28:34,563 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 28 transitions, 77 flow. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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 23:28:34,563 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 23:28:34,563 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 30
[2024-11-07 23:28:34,563 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 23:28:34,612 INFO L124 PetriNetUnfolderBase]: 36/92 cut-off events.
[2024-11-07 23:28:34,612 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES.
[2024-11-07 23:28:34,613 INFO L83 FinitePrefix]: Finished finitePrefix Result has 220 conditions, 92 events. 36/92 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 311 event pairs, 8 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 209. Up to 72 conditions per place.
[2024-11-07 23:28:34,613 INFO L140 encePairwiseOnDemand]: 25/30 looper letters, 15 selfloop transitions, 3 changer transitions 0/31 dead transitions.
[2024-11-07 23:28:34,613 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 31 transitions, 117 flow
[2024-11-07 23:28:34,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-07 23:28:34,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-11-07 23:28:34,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 80 transitions.
[2024-11-07 23:28:34,614 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666
[2024-11-07 23:28:34,614 INFO L175 Difference]: Start difference. First operand has 36 places, 28 transitions, 77 flow. Second operand 4 states and 80 transitions.
[2024-11-07 23:28:34,614 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 31 transitions, 117 flow
[2024-11-07 23:28:34,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 31 transitions, 114 flow, removed 0 selfloop flow, removed 1 redundant places.
[2024-11-07 23:28:34,615 INFO L231 Difference]: Finished difference. Result has 36 places, 26 transitions, 72 flow
[2024-11-07 23:28:34,615 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=72, PETRI_PLACES=36, PETRI_TRANSITIONS=26}
[2024-11-07 23:28:34,616 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 1 predicate places.
[2024-11-07 23:28:34,616 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 26 transitions, 72 flow
[2024-11-07 23:28:34,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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 23:28:34,616 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 23:28:34,616 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 23:28:34,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-07 23:28:34,616 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] ===
[2024-11-07 23:28:34,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 23:28:34,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1983760113, now seen corresponding path program 1 times
[2024-11-07 23:28:34,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 23:28:34,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560028650]
[2024-11-07 23:28:34,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:28:34,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 23:28:34,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:28:34,684 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 23:28:34,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 23:28:34,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560028650]
[2024-11-07 23:28:34,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560028650] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 23:28:34,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 23:28:34,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-07 23:28:34,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923821109]
[2024-11-07 23:28:34,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 23:28:34,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-07 23:28:34,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 23:28:34,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-07 23:28:34,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-07 23:28:34,690 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 30
[2024-11-07 23:28:34,691 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 26 transitions, 72 flow. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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 23:28:34,691 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 23:28:34,691 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 30
[2024-11-07 23:28:34,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 23:28:34,751 INFO L124 PetriNetUnfolderBase]: 16/56 cut-off events.
[2024-11-07 23:28:34,752 INFO L125 PetriNetUnfolderBase]: For 38/38 co-relation queries the response was YES.
[2024-11-07 23:28:34,752 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133 conditions, 56 events. 16/56 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 156 event pairs, 0 based on Foata normal form. 16/66 useless extension candidates. Maximal degree in co-relation 121. Up to 36 conditions per place.
[2024-11-07 23:28:34,753 INFO L140 encePairwiseOnDemand]: 25/30 looper letters, 0 selfloop transitions, 0 changer transitions 29/29 dead transitions.
[2024-11-07 23:28:34,753 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 29 transitions, 108 flow
[2024-11-07 23:28:34,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-07 23:28:34,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-11-07 23:28:34,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 78 transitions.
[2024-11-07 23:28:34,753 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.65
[2024-11-07 23:28:34,754 INFO L175 Difference]: Start difference. First operand has 36 places, 26 transitions, 72 flow. Second operand 4 states and 78 transitions.
[2024-11-07 23:28:34,754 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 29 transitions, 108 flow
[2024-11-07 23:28:34,754 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 29 transitions, 101 flow, removed 0 selfloop flow, removed 3 redundant places.
[2024-11-07 23:28:34,754 INFO L231 Difference]: Finished difference. Result has 34 places, 0 transitions, 0 flow
[2024-11-07 23:28:34,754 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=57, PETRI_DIFFERENCE_MINUEND_PLACES=31, 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=4, PETRI_FLOW=0, PETRI_PLACES=34, PETRI_TRANSITIONS=0}
[2024-11-07 23:28:34,755 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, -1 predicate places.
[2024-11-07 23:28:34,755 INFO L471 AbstractCegarLoop]: Abstraction has has 34 places, 0 transitions, 0 flow
[2024-11-07 23:28:34,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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 23:28:34,760 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining)
[2024-11-07 23:28:34,760 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining)
[2024-11-07 23:28:34,761 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining)
[2024-11-07 23:28:34,761 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining)
[2024-11-07 23:28:34,761 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining)
[2024-11-07 23:28:34,761 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining)
[2024-11-07 23:28:34,761 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining)
[2024-11-07 23:28:34,761 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining)
[2024-11-07 23:28:34,761 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining)
[2024-11-07 23:28:34,761 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining)
[2024-11-07 23:28:34,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-07 23:28:34,762 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2024-11-07 23:28:34,766 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances
[2024-11-07 23:28:34,766 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-11-07 23:28:34,769 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 11:28:34 BasicIcfg
[2024-11-07 23:28:34,770 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-07 23:28:34,771 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-07 23:28:34,771 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-11-07 23:28:34,771 INFO L274 PluginConnector]: Witness Printer initialized
[2024-11-07 23:28:34,771 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:28:34" (3/4) ...
[2024-11-07 23:28:34,772 INFO L142 WitnessPrinter]: Generating witness for correct program
[2024-11-07 23:28:34,774 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0
[2024-11-07 23:28:34,774 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1
[2024-11-07 23:28:34,778 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 30 nodes and edges
[2024-11-07 23:28:34,778 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges
[2024-11-07 23:28:34,778 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges
[2024-11-07 23:28:34,778 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2024-11-07 23:28:34,828 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml
[2024-11-07 23:28:34,829 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml
[2024-11-07 23:28:34,829 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-07 23:28:34,830 INFO L158 Benchmark]: Toolchain (without parser) took 1490.00ms. Allocated memory is still 117.4MB. Free memory was 91.2MB in the beginning and 83.0MB in the end (delta: 8.3MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB.
[2024-11-07 23:28:34,830 INFO L158 Benchmark]: CDTParser took 0.50ms. Allocated memory is still 117.4MB. Free memory is still 81.8MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-07 23:28:34,831 INFO L158 Benchmark]: CACSL2BoogieTranslator took 294.72ms. Allocated memory is still 117.4MB. Free memory was 91.1MB in the beginning and 71.5MB in the end (delta: 19.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-11-07 23:28:34,831 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.61ms. Allocated memory is still 117.4MB. Free memory was 71.5MB in the beginning and 69.9MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-07 23:28:34,831 INFO L158 Benchmark]: Boogie Preprocessor took 37.53ms. Allocated memory is still 117.4MB. Free memory was 69.9MB in the beginning and 68.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-07 23:28:34,831 INFO L158 Benchmark]: RCFGBuilder took 301.72ms. Allocated memory is still 117.4MB. Free memory was 68.4MB in the beginning and 49.8MB in the end (delta: 18.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-11-07 23:28:34,832 INFO L158 Benchmark]: TraceAbstraction took 759.83ms. Allocated memory is still 117.4MB. Free memory was 49.3MB in the beginning and 86.9MB in the end (delta: -37.6MB). Peak memory consumption was 27.1MB. Max. memory is 16.1GB.
[2024-11-07 23:28:34,832 INFO L158 Benchmark]: Witness Printer took 58.61ms. Allocated memory is still 117.4MB. Free memory was 86.9MB in the beginning and 83.0MB in the end (delta: 4.0MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-07 23:28:34,833 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.50ms. Allocated memory is still 117.4MB. Free memory is still 81.8MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 294.72ms. Allocated memory is still 117.4MB. Free memory was 91.1MB in the beginning and 71.5MB in the end (delta: 19.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 30.61ms. Allocated memory is still 117.4MB. Free memory was 71.5MB in the beginning and 69.9MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 37.53ms. Allocated memory is still 117.4MB. Free memory was 69.9MB in the beginning and 68.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 301.72ms. Allocated memory is still 117.4MB. Free memory was 68.4MB in the beginning and 49.8MB in the end (delta: 18.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* TraceAbstraction took 759.83ms. Allocated memory is still 117.4MB. Free memory was 49.3MB in the beginning and 86.9MB in the end (delta: -37.6MB). Peak memory consumption was 27.1MB. Max. memory is 16.1GB.
* Witness Printer took 58.61ms. Allocated memory is still 117.4MB. Free memory was 86.9MB in the beginning and 83.0MB in the end (delta: 4.0MB). There was no memory consumed. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- PositiveResult [Line: 732]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- PositiveResult [Line: 732]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- PositiveResult [Line: 749]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- PositiveResult [Line: 749]: 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, 53 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: 0.7s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 41 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 35 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 94 IncrementalHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 0 mSDtfsCounter, 94 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=77occurred in iteration=1, InterpolantAutomatonStates: 11, 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, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 37 ConstructedInterpolants, 0 QuantifiedInterpolants, 111 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 23:28:34,852 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