./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/rfi003_tso.i --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version 4f9af400
extending candidate: java
['java']
extending candidate: /usr/bin/java
['java', '/usr/bin/java']
extending candidate: /opt/oracle-jdk-bin-*/bin/java
['java', '/usr/bin/java']
extending candidate: /opt/openjdk-*/bin/java
['java', '/usr/bin/java']
extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java
['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java']
['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml', '-i', '../sv-benchmarks/c/pthread-wmm/rfi003_tso.i', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf', '--cacsl2boogietranslator.entry.function', 'main', '--witnessprinter.witness.directory', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux', '--witnessprinter.witness.filename', 'witness', '--witnessprinter.write.witness.besides.input.file', 'false', '--witnessprinter.graph.data.specification', 'CHECK( init(main()), LTL(G ! call(reach_error())) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '32bit', '--witnessprinter.graph.data.programhash', '503cbc793fb2369a7e5308c15a611fe38888f935ec98bb5d473194a0a60e31e4']
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/rfi003_tso.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 503cbc793fb2369a7e5308c15a611fe38888f935ec98bb5d473194a0a60e31e4
--- Real Ultimate output ---
This is Ultimate 0.3.0-?-4f9af40
[2024-11-07 11:13:25,581 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-07 11:13:25,708 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-07 11:13:25,716 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-07 11:13:25,719 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-07 11:13:25,745 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-07 11:13:25,746 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-07 11:13:25,746 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-07 11:13:25,746 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-07 11:13:25,746 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-07 11:13:25,746 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-07 11:13:25,746 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-07 11:13:25,746 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-07 11:13:25,747 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-07 11:13:25,747 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-07 11:13:25,747 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-07 11:13:25,747 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-07 11:13:25,747 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-07 11:13:25,747 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-07 11:13:25,747 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-07 11:13:25,747 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-07 11:13:25,747 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-07 11:13:25,747 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-07 11:13:25,747 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-07 11:13:25,747 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-11-07 11:13:25,747 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-07 11:13:25,747 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-07 11:13:25,747 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-07 11:13:25,747 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-07 11:13:25,747 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-07 11:13:25,748 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-07 11:13:25,748 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-07 11:13:25,748 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-07 11:13:25,748 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-07 11:13:25,748 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-07 11:13:25,748 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-07 11:13:25,748 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-07 11:13:25,748 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-07 11:13:25,748 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-07 11:13:25,748 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-07 11:13:25,748 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-07 11:13:25,748 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-07 11:13:25,748 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 503cbc793fb2369a7e5308c15a611fe38888f935ec98bb5d473194a0a60e31e4
[2024-11-07 11:13:26,049 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-07 11:13:26,065 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-07 11:13:26,067 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-07 11:13:26,068 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-07 11:13:26,068 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-07 11:13:26,069 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/rfi003_tso.i
[2024-11-07 11:13:27,505 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-11-07 11:13:27,743 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-07 11:13:27,744 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/rfi003_tso.i
[2024-11-07 11:13:27,759 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7dae63f1f/e7797a583ba9428d8790e21d2667f461/FLAGaea9e4dc7
[2024-11-07 11:13:27,772 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7dae63f1f/e7797a583ba9428d8790e21d2667f461
[2024-11-07 11:13:27,774 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-07 11:13:27,776 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-07 11:13:27,776 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-07 11:13:27,777 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-07 11:13:27,780 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-07 11:13:27,780 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:13:27" (1/1) ...
[2024-11-07 11:13:27,782 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75749930 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:13:27, skipping insertion in model container
[2024-11-07 11:13:27,782 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:13:27" (1/1) ...
[2024-11-07 11:13:27,813 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-07 11:13:27,923 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/rfi003_tso.i[944,957]
[2024-11-07 11:13:28,098 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-07 11:13:28,115 INFO L200 MainTranslator]: Completed pre-run
[2024-11-07 11:13:28,124 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/rfi003_tso.i[944,957]
[2024-11-07 11:13:28,186 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-07 11:13:28,221 INFO L204 MainTranslator]: Completed translation
[2024-11-07 11:13:28,222 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:13:28 WrapperNode
[2024-11-07 11:13:28,222 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-07 11:13:28,223 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-07 11:13:28,224 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-07 11:13:28,224 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-07 11:13:28,228 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:13:28" (1/1) ...
[2024-11-07 11:13:28,242 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:13:28" (1/1) ...
[2024-11-07 11:13:28,271 INFO L138 Inliner]: procedures = 174, calls = 39, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 168
[2024-11-07 11:13:28,275 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-07 11:13:28,276 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-07 11:13:28,276 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-07 11:13:28,276 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-07 11:13:28,282 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:13:28" (1/1) ...
[2024-11-07 11:13:28,283 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:13:28" (1/1) ...
[2024-11-07 11:13:28,289 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:13:28" (1/1) ...
[2024-11-07 11:13:28,312 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 11:13:28,312 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:13:28" (1/1) ...
[2024-11-07 11:13:28,312 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:13:28" (1/1) ...
[2024-11-07 11:13:28,326 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:13:28" (1/1) ...
[2024-11-07 11:13:28,328 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:13:28" (1/1) ...
[2024-11-07 11:13:28,329 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:13:28" (1/1) ...
[2024-11-07 11:13:28,334 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:13:28" (1/1) ...
[2024-11-07 11:13:28,336 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-07 11:13:28,337 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-07 11:13:28,340 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-07 11:13:28,340 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-07 11:13:28,341 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:13:28" (1/1) ...
[2024-11-07 11:13:28,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-07 11:13:28,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 11:13:28,370 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-07 11:13:28,374 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-07 11:13:28,392 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2024-11-07 11:13:28,392 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-07 11:13:28,392 INFO L130 BoogieDeclarations]: Found specification of procedure P0
[2024-11-07 11:13:28,392 INFO L138 BoogieDeclarations]: Found implementation of procedure P0
[2024-11-07 11:13:28,392 INFO L130 BoogieDeclarations]: Found specification of procedure P1
[2024-11-07 11:13:28,392 INFO L138 BoogieDeclarations]: Found implementation of procedure P1
[2024-11-07 11:13:28,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-07 11:13:28,393 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2024-11-07 11:13:28,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-07 11:13:28,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-07 11:13:28,394 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement.
[2024-11-07 11:13:28,494 INFO L238 CfgBuilder]: Building ICFG
[2024-11-07 11:13:28,496 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-07 11:13:28,769 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program.
[2024-11-07 11:13:28,769 INFO L287 CfgBuilder]: Performing block encoding
[2024-11-07 11:13:29,013 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-07 11:13:29,013 INFO L316 CfgBuilder]: Removed 0 assume(true) statements.
[2024-11-07 11:13:29,014 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:13:29 BoogieIcfgContainer
[2024-11-07 11:13:29,014 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-07 11:13:29,016 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-07 11:13:29,016 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-07 11:13:29,022 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-07 11:13:29,022 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 11:13:27" (1/3) ...
[2024-11-07 11:13:29,023 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56a53e1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:13:29, skipping insertion in model container
[2024-11-07 11:13:29,023 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:13:28" (2/3) ...
[2024-11-07 11:13:29,024 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56a53e1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:13:29, skipping insertion in model container
[2024-11-07 11:13:29,024 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:13:29" (3/3) ...
[2024-11-07 11:13:29,025 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi003_tso.i
[2024-11-07 11:13:29,035 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-07 11:13:29,037 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2024-11-07 11:13:29,037 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2024-11-07 11:13:29,091 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2024-11-07 11:13:29,116 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 39 places, 33 transitions, 74 flow
[2024-11-07 11:13:29,146 INFO L124 PetriNetUnfolderBase]: 1/31 cut-off events.
[2024-11-07 11:13:29,149 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-11-07 11:13:29,152 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38 conditions, 31 events. 1/31 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 52 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 11:13:29,153 INFO L82 GeneralOperation]: Start removeDead. Operand has 39 places, 33 transitions, 74 flow
[2024-11-07 11:13:29,155 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 37 places, 31 transitions, 68 flow
[2024-11-07 11:13:29,163 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-07 11:13:29,173 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;@3d1967fe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-07 11:13:29,173 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations.
[2024-11-07 11:13:29,182 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2024-11-07 11:13:29,184 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events.
[2024-11-07 11:13:29,184 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-11-07 11:13:29,184 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 11:13:29,185 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2024-11-07 11:13:29,185 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] ===
[2024-11-07 11:13:29,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 11:13:29,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1718409122, now seen corresponding path program 1 times
[2024-11-07 11:13:29,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 11:13:29,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555437479]
[2024-11-07 11:13:29,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 11:13:29,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 11:13:29,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 11:13:29,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 11:13:29,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 11:13:29,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555437479]
[2024-11-07 11:13:29,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555437479] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 11:13:29,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 11:13:29,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2024-11-07 11:13:29,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673685943]
[2024-11-07 11:13:29,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 11:13:29,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-07 11:13:29,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 11:13:29,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-07 11:13:29,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-07 11:13:29,570 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 33
[2024-11-07 11:13:29,572 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 31 transitions, 68 flow. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 11:13:29,572 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 11:13:29,572 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 33
[2024-11-07 11:13:29,573 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 11:13:29,893 INFO L124 PetriNetUnfolderBase]: 249/482 cut-off events.
[2024-11-07 11:13:29,894 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-11-07 11:13:29,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 922 conditions, 482 events. 249/482 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2462 event pairs, 24 based on Foata normal form. 24/495 useless extension candidates. Maximal degree in co-relation 912. Up to 366 conditions per place.
[2024-11-07 11:13:29,907 INFO L140 encePairwiseOnDemand]: 29/33 looper letters, 23 selfloop transitions, 2 changer transitions 2/38 dead transitions.
[2024-11-07 11:13:29,907 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 38 transitions, 136 flow
[2024-11-07 11:13:29,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-07 11:13:29,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-11-07 11:13:29,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 69 transitions.
[2024-11-07 11:13:29,936 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.696969696969697
[2024-11-07 11:13:29,941 INFO L175 Difference]: Start difference. First operand has 37 places, 31 transitions, 68 flow. Second operand 3 states and 69 transitions.
[2024-11-07 11:13:29,942 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 38 transitions, 136 flow
[2024-11-07 11:13:29,947 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 38 transitions, 134 flow, removed 0 selfloop flow, removed 2 redundant places.
[2024-11-07 11:13:29,957 INFO L231 Difference]: Finished difference. Result has 36 places, 28 transitions, 64 flow
[2024-11-07 11:13:29,960 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=34, 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=64, PETRI_PLACES=36, PETRI_TRANSITIONS=28}
[2024-11-07 11:13:29,968 INFO L277 CegarLoopForPetriNet]: 37 programPoint places, -1 predicate places.
[2024-11-07 11:13:29,972 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 28 transitions, 64 flow
[2024-11-07 11:13:29,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 11:13:29,972 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 11:13:29,973 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 11:13:29,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-07 11:13:29,973 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] ===
[2024-11-07 11:13:29,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 11:13:29,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1142458704, now seen corresponding path program 1 times
[2024-11-07 11:13:29,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 11:13:29,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188299278]
[2024-11-07 11:13:29,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 11:13:29,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 11:13:30,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 11:13:30,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 11:13:30,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 11:13:30,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188299278]
[2024-11-07 11:13:30,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188299278] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 11:13:30,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 11:13:30,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-07 11:13:30,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329010825]
[2024-11-07 11:13:30,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 11:13:30,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-07 11:13:30,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 11:13:30,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-07 11:13:30,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-07 11:13:30,382 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 33
[2024-11-07 11:13:30,383 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 28 transitions, 64 flow. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 11:13:30,383 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 11:13:30,383 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 33
[2024-11-07 11:13:30,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 11:13:30,574 INFO L124 PetriNetUnfolderBase]: 268/553 cut-off events.
[2024-11-07 11:13:30,575 INFO L125 PetriNetUnfolderBase]: For 25/25 co-relation queries the response was YES.
[2024-11-07 11:13:30,577 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1078 conditions, 553 events. 268/553 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 2732 event pairs, 62 based on Foata normal form. 35/563 useless extension candidates. Maximal degree in co-relation 1068. Up to 241 conditions per place.
[2024-11-07 11:13:30,580 INFO L140 encePairwiseOnDemand]: 28/33 looper letters, 37 selfloop transitions, 4 changer transitions 1/50 dead transitions.
[2024-11-07 11:13:30,581 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 50 transitions, 198 flow
[2024-11-07 11:13:30,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-07 11:13:30,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-11-07 11:13:30,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 84 transitions.
[2024-11-07 11:13:30,583 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6363636363636364
[2024-11-07 11:13:30,583 INFO L175 Difference]: Start difference. First operand has 36 places, 28 transitions, 64 flow. Second operand 4 states and 84 transitions.
[2024-11-07 11:13:30,583 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 50 transitions, 198 flow
[2024-11-07 11:13:30,584 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 50 transitions, 190 flow, removed 0 selfloop flow, removed 2 redundant places.
[2024-11-07 11:13:30,585 INFO L231 Difference]: Finished difference. Result has 38 places, 30 transitions, 86 flow
[2024-11-07 11:13:30,585 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=86, PETRI_PLACES=38, PETRI_TRANSITIONS=30}
[2024-11-07 11:13:30,586 INFO L277 CegarLoopForPetriNet]: 37 programPoint places, 1 predicate places.
[2024-11-07 11:13:30,586 INFO L471 AbstractCegarLoop]: Abstraction has has 38 places, 30 transitions, 86 flow
[2024-11-07 11:13:30,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 11:13:30,586 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 11:13:30,586 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 11:13:30,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-07 11:13:30,586 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] ===
[2024-11-07 11:13:30,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 11:13:30,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1130605351, now seen corresponding path program 1 times
[2024-11-07 11:13:30,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 11:13:30,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370686010]
[2024-11-07 11:13:30,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 11:13:30,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 11:13:30,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 11:13:30,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 11:13:30,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 11:13:30,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370686010]
[2024-11-07 11:13:30,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370686010] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 11:13:30,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 11:13:30,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-07 11:13:30,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133853227]
[2024-11-07 11:13:30,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 11:13:30,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-07 11:13:30,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 11:13:30,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-07 11:13:30,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-07 11:13:31,001 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 33
[2024-11-07 11:13:31,002 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 30 transitions, 86 flow. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 11:13:31,002 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 11:13:31,002 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 33
[2024-11-07 11:13:31,002 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 11:13:31,158 INFO L124 PetriNetUnfolderBase]: 134/276 cut-off events.
[2024-11-07 11:13:31,159 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES.
[2024-11-07 11:13:31,160 INFO L83 FinitePrefix]: Finished finitePrefix Result has 645 conditions, 276 events. 134/276 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1017 event pairs, 42 based on Foata normal form. 20/287 useless extension candidates. Maximal degree in co-relation 633. Up to 116 conditions per place.
[2024-11-07 11:13:31,162 INFO L140 encePairwiseOnDemand]: 28/33 looper letters, 30 selfloop transitions, 6 changer transitions 1/45 dead transitions.
[2024-11-07 11:13:31,162 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 45 transitions, 195 flow
[2024-11-07 11:13:31,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-07 11:13:31,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2024-11-07 11:13:31,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 89 transitions.
[2024-11-07 11:13:31,165 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5393939393939394
[2024-11-07 11:13:31,165 INFO L175 Difference]: Start difference. First operand has 38 places, 30 transitions, 86 flow. Second operand 5 states and 89 transitions.
[2024-11-07 11:13:31,165 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 45 transitions, 195 flow
[2024-11-07 11:13:31,166 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 45 transitions, 186 flow, removed 1 selfloop flow, removed 2 redundant places.
[2024-11-07 11:13:31,167 INFO L231 Difference]: Finished difference. Result has 42 places, 30 transitions, 102 flow
[2024-11-07 11:13:31,167 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=102, PETRI_PLACES=42, PETRI_TRANSITIONS=30}
[2024-11-07 11:13:31,168 INFO L277 CegarLoopForPetriNet]: 37 programPoint places, 5 predicate places.
[2024-11-07 11:13:31,168 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 30 transitions, 102 flow
[2024-11-07 11:13:31,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 11:13:31,168 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 11:13:31,168 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 11:13:31,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-07 11:13:31,170 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] ===
[2024-11-07 11:13:31,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 11:13:31,171 INFO L85 PathProgramCache]: Analyzing trace with hash -303791634, now seen corresponding path program 1 times
[2024-11-07 11:13:31,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 11:13:31,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513972910]
[2024-11-07 11:13:31,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 11:13:31,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 11:13:31,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 11:13:34,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 11:13:34,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 11:13:34,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513972910]
[2024-11-07 11:13:34,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513972910] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 11:13:34,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 11:13:34,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11
[2024-11-07 11:13:34,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985637128]
[2024-11-07 11:13:34,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 11:13:34,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2024-11-07 11:13:34,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 11:13:34,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2024-11-07 11:13:34,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132
[2024-11-07 11:13:34,729 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 33
[2024-11-07 11:13:34,732 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 30 transitions, 102 flow. Second operand has 12 states, 12 states have (on average 12.416666666666666) internal successors, (149), 12 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 11:13:34,733 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 11:13:34,733 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 33
[2024-11-07 11:13:34,733 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 11:13:35,750 INFO L124 PetriNetUnfolderBase]: 148/344 cut-off events.
[2024-11-07 11:13:35,750 INFO L125 PetriNetUnfolderBase]: For 116/116 co-relation queries the response was YES.
[2024-11-07 11:13:35,751 INFO L83 FinitePrefix]: Finished finitePrefix Result has 777 conditions, 344 events. 148/344 cut-off events. For 116/116 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1389 event pairs, 28 based on Foata normal form. 4/343 useless extension candidates. Maximal degree in co-relation 763. Up to 136 conditions per place.
[2024-11-07 11:13:35,752 INFO L140 encePairwiseOnDemand]: 22/33 looper letters, 25 selfloop transitions, 15 changer transitions 16/67 dead transitions.
[2024-11-07 11:13:35,752 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 67 transitions, 296 flow
[2024-11-07 11:13:35,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2024-11-07 11:13:35,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states.
[2024-11-07 11:13:35,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 178 transitions.
[2024-11-07 11:13:35,753 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4903581267217631
[2024-11-07 11:13:35,753 INFO L175 Difference]: Start difference. First operand has 42 places, 30 transitions, 102 flow. Second operand 11 states and 178 transitions.
[2024-11-07 11:13:35,753 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 67 transitions, 296 flow
[2024-11-07 11:13:35,754 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 67 transitions, 262 flow, removed 8 selfloop flow, removed 6 redundant places.
[2024-11-07 11:13:35,755 INFO L231 Difference]: Finished difference. Result has 51 places, 41 transitions, 158 flow
[2024-11-07 11:13:35,755 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=158, PETRI_PLACES=51, PETRI_TRANSITIONS=41}
[2024-11-07 11:13:35,756 INFO L277 CegarLoopForPetriNet]: 37 programPoint places, 14 predicate places.
[2024-11-07 11:13:35,756 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 41 transitions, 158 flow
[2024-11-07 11:13:35,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.416666666666666) internal successors, (149), 12 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 11:13:35,756 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 11:13:35,756 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 11:13:35,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-07 11:13:35,760 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] ===
[2024-11-07 11:13:35,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 11:13:35,761 INFO L85 PathProgramCache]: Analyzing trace with hash 56928114, now seen corresponding path program 2 times
[2024-11-07 11:13:35,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 11:13:35,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799136368]
[2024-11-07 11:13:35,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 11:13:35,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 11:13:35,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 11:13:37,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 11:13:37,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 11:13:37,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799136368]
[2024-11-07 11:13:37,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799136368] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 11:13:37,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 11:13:37,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10
[2024-11-07 11:13:37,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23678322]
[2024-11-07 11:13:37,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 11:13:37,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2024-11-07 11:13:37,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 11:13:37,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2024-11-07 11:13:37,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110
[2024-11-07 11:13:37,414 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 33
[2024-11-07 11:13:37,415 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 41 transitions, 158 flow. Second operand has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 11:13:37,415 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 11:13:37,415 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 33
[2024-11-07 11:13:37,415 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 11:13:37,916 INFO L124 PetriNetUnfolderBase]: 182/434 cut-off events.
[2024-11-07 11:13:37,917 INFO L125 PetriNetUnfolderBase]: For 134/138 co-relation queries the response was YES.
[2024-11-07 11:13:37,917 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1088 conditions, 434 events. 182/434 cut-off events. For 134/138 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1972 event pairs, 52 based on Foata normal form. 4/426 useless extension candidates. Maximal degree in co-relation 1072. Up to 132 conditions per place.
[2024-11-07 11:13:37,918 INFO L140 encePairwiseOnDemand]: 24/33 looper letters, 19 selfloop transitions, 7 changer transitions 35/72 dead transitions.
[2024-11-07 11:13:37,918 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 72 transitions, 387 flow
[2024-11-07 11:13:37,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2024-11-07 11:13:37,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states.
[2024-11-07 11:13:37,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 165 transitions.
[2024-11-07 11:13:37,919 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5
[2024-11-07 11:13:37,919 INFO L175 Difference]: Start difference. First operand has 51 places, 41 transitions, 158 flow. Second operand 10 states and 165 transitions.
[2024-11-07 11:13:37,920 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 72 transitions, 387 flow
[2024-11-07 11:13:37,921 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 72 transitions, 380 flow, removed 3 selfloop flow, removed 3 redundant places.
[2024-11-07 11:13:37,921 INFO L231 Difference]: Finished difference. Result has 59 places, 32 transitions, 137 flow
[2024-11-07 11:13:37,921 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=153, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=137, PETRI_PLACES=59, PETRI_TRANSITIONS=32}
[2024-11-07 11:13:37,922 INFO L277 CegarLoopForPetriNet]: 37 programPoint places, 22 predicate places.
[2024-11-07 11:13:37,922 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 32 transitions, 137 flow
[2024-11-07 11:13:37,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 11:13:37,922 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 11:13:37,922 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 11:13:37,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-07 11:13:37,923 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] ===
[2024-11-07 11:13:37,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 11:13:37,923 INFO L85 PathProgramCache]: Analyzing trace with hash -489657136, now seen corresponding path program 3 times
[2024-11-07 11:13:37,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 11:13:37,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968112303]
[2024-11-07 11:13:37,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 11:13:37,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 11:13:38,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 11:13:38,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 11:13:38,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 11:13:38,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968112303]
[2024-11-07 11:13:38,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968112303] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 11:13:38,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 11:13:38,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-11-07 11:13:38,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508622451]
[2024-11-07 11:13:38,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 11:13:38,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-07 11:13:38,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 11:13:38,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-07 11:13:38,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2024-11-07 11:13:38,361 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 33
[2024-11-07 11:13:38,362 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 32 transitions, 137 flow. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 11:13:38,362 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 11:13:38,362 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 33
[2024-11-07 11:13:38,362 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 11:13:38,522 INFO L124 PetriNetUnfolderBase]: 60/145 cut-off events.
[2024-11-07 11:13:38,522 INFO L125 PetriNetUnfolderBase]: For 44/44 co-relation queries the response was YES.
[2024-11-07 11:13:38,523 INFO L83 FinitePrefix]: Finished finitePrefix Result has 401 conditions, 145 events. 60/145 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 375 event pairs, 8 based on Foata normal form. 4/147 useless extension candidates. Maximal degree in co-relation 391. Up to 58 conditions per place.
[2024-11-07 11:13:38,523 INFO L140 encePairwiseOnDemand]: 26/33 looper letters, 0 selfloop transitions, 0 changer transitions 39/39 dead transitions.
[2024-11-07 11:13:38,523 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 39 transitions, 215 flow
[2024-11-07 11:13:38,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-11-07 11:13:38,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states.
[2024-11-07 11:13:38,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 102 transitions.
[2024-11-07 11:13:38,524 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.38636363636363635
[2024-11-07 11:13:38,524 INFO L175 Difference]: Start difference. First operand has 59 places, 32 transitions, 137 flow. Second operand 8 states and 102 transitions.
[2024-11-07 11:13:38,524 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 39 transitions, 215 flow
[2024-11-07 11:13:38,525 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 39 transitions, 172 flow, removed 7 selfloop flow, removed 13 redundant places.
[2024-11-07 11:13:38,527 INFO L231 Difference]: Finished difference. Result has 46 places, 0 transitions, 0 flow
[2024-11-07 11:13:38,527 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=46, PETRI_TRANSITIONS=0}
[2024-11-07 11:13:38,527 INFO L277 CegarLoopForPetriNet]: 37 programPoint places, 9 predicate places.
[2024-11-07 11:13:38,528 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 0 transitions, 0 flow
[2024-11-07 11:13:38,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 11:13:38,532 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining)
[2024-11-07 11:13:38,532 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining)
[2024-11-07 11:13:38,532 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining)
[2024-11-07 11:13:38,532 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining)
[2024-11-07 11:13:38,532 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining)
[2024-11-07 11:13:38,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-07 11:13:38,533 INFO L407 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1]
[2024-11-07 11:13:38,537 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances
[2024-11-07 11:13:38,537 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-11-07 11:13:38,542 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 11:13:38 BasicIcfg
[2024-11-07 11:13:38,543 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-07 11:13:38,544 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-07 11:13:38,544 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-11-07 11:13:38,544 INFO L274 PluginConnector]: Witness Printer initialized
[2024-11-07 11:13:38,544 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:13:29" (3/4) ...
[2024-11-07 11:13:38,545 INFO L142 WitnessPrinter]: Generating witness for correct program
[2024-11-07 11:13:38,547 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0
[2024-11-07 11:13:38,547 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1
[2024-11-07 11:13:38,550 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 75 nodes and edges
[2024-11-07 11:13:38,551 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges
[2024-11-07 11:13:38,551 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges
[2024-11-07 11:13:38,551 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges
[2024-11-07 11:13:38,596 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml
[2024-11-07 11:13:38,596 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml
[2024-11-07 11:13:38,596 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-07 11:13:38,597 INFO L158 Benchmark]: Toolchain (without parser) took 10821.12ms. Allocated memory was 117.4MB in the beginning and 696.3MB in the end (delta: 578.8MB). Free memory was 90.6MB in the beginning and 426.4MB in the end (delta: -335.8MB). Peak memory consumption was 239.8MB. Max. memory is 16.1GB.
[2024-11-07 11:13:38,597 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 117.4MB. Free memory is still 81.5MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-07 11:13:38,597 INFO L158 Benchmark]: CACSL2BoogieTranslator took 446.10ms. Allocated memory is still 117.4MB. Free memory was 90.5MB in the beginning and 65.1MB in the end (delta: 25.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-11-07 11:13:38,597 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.14ms. Allocated memory is still 117.4MB. Free memory was 65.1MB in the beginning and 61.9MB in the end (delta: 3.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-07 11:13:38,597 INFO L158 Benchmark]: Boogie Preprocessor took 60.17ms. Allocated memory is still 117.4MB. Free memory was 61.9MB in the beginning and 58.0MB in the end (delta: 3.9MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-07 11:13:38,597 INFO L158 Benchmark]: RCFGBuilder took 677.32ms. Allocated memory was 117.4MB in the beginning and 159.4MB in the end (delta: 41.9MB). Free memory was 57.8MB in the beginning and 125.4MB in the end (delta: -67.6MB). Peak memory consumption was 36.6MB. Max. memory is 16.1GB.
[2024-11-07 11:13:38,598 INFO L158 Benchmark]: TraceAbstraction took 9527.53ms. Allocated memory was 159.4MB in the beginning and 696.3MB in the end (delta: 536.9MB). Free memory was 124.8MB in the beginning and 430.5MB in the end (delta: -305.7MB). Peak memory consumption was 232.0MB. Max. memory is 16.1GB.
[2024-11-07 11:13:38,598 INFO L158 Benchmark]: Witness Printer took 52.33ms. Allocated memory is still 696.3MB. Free memory was 430.5MB in the beginning and 426.4MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-07 11:13:38,599 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.16ms. Allocated memory is still 117.4MB. Free memory is still 81.5MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 446.10ms. Allocated memory is still 117.4MB. Free memory was 90.5MB in the beginning and 65.1MB in the end (delta: 25.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 52.14ms. Allocated memory is still 117.4MB. Free memory was 65.1MB in the beginning and 61.9MB in the end (delta: 3.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 60.17ms. Allocated memory is still 117.4MB. Free memory was 61.9MB in the beginning and 58.0MB in the end (delta: 3.9MB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 677.32ms. Allocated memory was 117.4MB in the beginning and 159.4MB in the end (delta: 41.9MB). Free memory was 57.8MB in the beginning and 125.4MB in the end (delta: -67.6MB). Peak memory consumption was 36.6MB. Max. memory is 16.1GB.
* TraceAbstraction took 9527.53ms. Allocated memory was 159.4MB in the beginning and 696.3MB in the end (delta: 536.9MB). Free memory was 124.8MB in the beginning and 430.5MB in the end (delta: -305.7MB). Peak memory consumption was 232.0MB. Max. memory is 16.1GB.
* Witness Printer took 52.33ms. Allocated memory is still 696.3MB. Free memory was 430.5MB in the beginning and 426.4MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- PositiveResult [Line: 18]: a call to reach_error is unreachable
For all program executions holds that a call to reach_error is unreachable at this location
- PositiveResult [Line: 18]: a call to reach_error is unreachable
For all program executions holds that a call to reach_error is unreachable at this location
- StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances
CFG has 5 procedures, 53 locations, 5 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: 9.4s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 257 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 246 mSDsluCounter, 201 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 193 mSDsCounter, 72 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 787 IncrementalHoareTripleChecker+Invalid, 859 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 72 mSolverCounterUnsat, 8 mSDtfsCounter, 787 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=158occurred in iteration=4, InterpolantAutomatonStates: 41, 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, 0.6s SatisfiabilityAnalysisTime, 5.9s InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 106 ConstructedInterpolants, 0 QuantifiedInterpolants, 1207 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
2 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2024-11-07 11:13:38,618 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