./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/rfi008.opt.i --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for overflows
Using default analysis
Version d790fecc
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcdfb64a-38b0-48f5-8df5-9830fd0947a1/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcdfb64a-38b0-48f5-8df5-9830fd0947a1/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcdfb64a-38b0-48f5-8df5-9830fd0947a1/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcdfb64a-38b0-48f5-8df5-9830fd0947a1/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/rfi008.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcdfb64a-38b0-48f5-8df5-9830fd0947a1/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcdfb64a-38b0-48f5-8df5-9830fd0947a1/bin/uautomizer-verify-84ZbGMXZE1 --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 0d082f4414248fc35e1fa616a9787901263e0e45c6e6a28545f00aa25d14032e
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-d790fec
[2024-12-02 13:08:04,806 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-12-02 13:08:04,864 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcdfb64a-38b0-48f5-8df5-9830fd0947a1/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-32bit-Automizer_Default.epf
[2024-12-02 13:08:04,869 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-12-02 13:08:04,869 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-12-02 13:08:04,893 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-12-02 13:08:04,893 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-12-02 13:08:04,893 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-12-02 13:08:04,894 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-12-02 13:08:04,894 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-12-02 13:08:04,894 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-12-02 13:08:04,894 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-12-02 13:08:04,894 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-12-02 13:08:04,895 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-12-02 13:08:04,895 INFO L153 SettingsManager]: * Use SBE=true
[2024-12-02 13:08:04,895 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-12-02 13:08:04,895 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-12-02 13:08:04,895 INFO L153 SettingsManager]: * sizeof long=4
[2024-12-02 13:08:04,895 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-12-02 13:08:04,895 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-12-02 13:08:04,895 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-12-02 13:08:04,895 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-12-02 13:08:04,895 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-12-02 13:08:04,895 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-12-02 13:08:04,896 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME
[2024-12-02 13:08:04,896 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-12-02 13:08:04,896 INFO L153 SettingsManager]: * sizeof long double=12
[2024-12-02 13:08:04,896 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-12-02 13:08:04,896 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-12-02 13:08:04,896 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-12-02 13:08:04,896 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-12-02 13:08:04,896 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 13:08:04,896 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 13:08:04,896 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 13:08:04,896 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 13:08:04,897 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-12-02 13:08:04,897 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 13:08:04,897 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 13:08:04,897 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 13:08:04,897 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 13:08:04,897 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-12-02 13:08:04,897 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-12-02 13:08:04,897 INFO L153 SettingsManager]: * Compute procedure contracts=false
[2024-12-02 13:08:04,897 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-12-02 13:08:04,897 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-12-02 13:08:04,897 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-12-02 13:08:04,897 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-12-02 13:08:04,898 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-12-02 13:08:04,898 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-12-02 13:08:04,898 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-12-02 13:08:04,898 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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcdfb64a-38b0-48f5-8df5-9830fd0947a1/bin/uautomizer-verify-84ZbGMXZE1
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 -> 0d082f4414248fc35e1fa616a9787901263e0e45c6e6a28545f00aa25d14032e
[2024-12-02 13:08:05,145 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-12-02 13:08:05,154 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-12-02 13:08:05,156 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-12-02 13:08:05,157 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-12-02 13:08:05,158 INFO L274 PluginConnector]: CDTParser initialized
[2024-12-02 13:08:05,159 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcdfb64a-38b0-48f5-8df5-9830fd0947a1/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/pthread-wmm/rfi008.opt.i
[2024-12-02 13:08:07,870 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcdfb64a-38b0-48f5-8df5-9830fd0947a1/bin/uautomizer-verify-84ZbGMXZE1/data/fc57e24a3/6b1da4a391544b378fb15894af2ba787/FLAG9f6ddf31a
[2024-12-02 13:08:08,098 INFO L384 CDTParser]: Found 1 translation units.
[2024-12-02 13:08:08,099 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcdfb64a-38b0-48f5-8df5-9830fd0947a1/sv-benchmarks/c/pthread-wmm/rfi008.opt.i
[2024-12-02 13:08:08,110 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcdfb64a-38b0-48f5-8df5-9830fd0947a1/bin/uautomizer-verify-84ZbGMXZE1/data/fc57e24a3/6b1da4a391544b378fb15894af2ba787/FLAG9f6ddf31a
[2024-12-02 13:08:08,124 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcdfb64a-38b0-48f5-8df5-9830fd0947a1/bin/uautomizer-verify-84ZbGMXZE1/data/fc57e24a3/6b1da4a391544b378fb15894af2ba787
[2024-12-02 13:08:08,126 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-12-02 13:08:08,127 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-12-02 13:08:08,128 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-12-02 13:08:08,128 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-12-02 13:08:08,132 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-12-02 13:08:08,132 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:08:08" (1/1) ...
[2024-12-02 13:08:08,133 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d6aeb9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:08, skipping insertion in model container
[2024-12-02 13:08:08,133 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:08:08" (1/1) ...
[2024-12-02 13:08:08,160 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-12-02 13:08:08,441 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 13:08:08,450 INFO L200 MainTranslator]: Completed pre-run
[2024-12-02 13:08:08,499 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 13:08:08,534 INFO L204 MainTranslator]: Completed translation
[2024-12-02 13:08:08,534 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:08 WrapperNode
[2024-12-02 13:08:08,534 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-12-02 13:08:08,535 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-12-02 13:08:08,535 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-12-02 13:08:08,535 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-12-02 13:08:08,542 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:08" (1/1) ...
[2024-12-02 13:08:08,553 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:08" (1/1) ...
[2024-12-02 13:08:08,576 INFO L138 Inliner]: procedures = 174, calls = 38, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 134
[2024-12-02 13:08:08,577 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-12-02 13:08:08,577 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-12-02 13:08:08,577 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-12-02 13:08:08,577 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-12-02 13:08:08,585 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:08" (1/1) ...
[2024-12-02 13:08:08,585 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:08" (1/1) ...
[2024-12-02 13:08:08,589 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:08" (1/1) ...
[2024-12-02 13:08:08,604 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].
[2024-12-02 13:08:08,605 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:08" (1/1) ...
[2024-12-02 13:08:08,605 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:08" (1/1) ...
[2024-12-02 13:08:08,612 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:08" (1/1) ...
[2024-12-02 13:08:08,613 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:08" (1/1) ...
[2024-12-02 13:08:08,615 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:08" (1/1) ...
[2024-12-02 13:08:08,616 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:08" (1/1) ...
[2024-12-02 13:08:08,618 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:08" (1/1) ...
[2024-12-02 13:08:08,621 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-12-02 13:08:08,622 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-12-02 13:08:08,622 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-12-02 13:08:08,622 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-12-02 13:08:08,623 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:08" (1/1) ...
[2024-12-02 13:08:08,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 13:08:08,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcdfb64a-38b0-48f5-8df5-9830fd0947a1/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 13:08:08,653 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcdfb64a-38b0-48f5-8df5-9830fd0947a1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-12-02 13:08:08,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcdfb64a-38b0-48f5-8df5-9830fd0947a1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-12-02 13:08:08,681 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2024-12-02 13:08:08,681 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-12-02 13:08:08,681 INFO L130 BoogieDeclarations]: Found specification of procedure P0
[2024-12-02 13:08:08,681 INFO L138 BoogieDeclarations]: Found implementation of procedure P0
[2024-12-02 13:08:08,681 INFO L130 BoogieDeclarations]: Found specification of procedure P1
[2024-12-02 13:08:08,681 INFO L138 BoogieDeclarations]: Found implementation of procedure P1
[2024-12-02 13:08:08,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-12-02 13:08:08,681 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2024-12-02 13:08:08,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-12-02 13:08:08,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-12-02 13:08:08,683 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement.
[2024-12-02 13:08:08,791 INFO L234 CfgBuilder]: Building ICFG
[2024-12-02 13:08:08,793 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-12-02 13:08:09,079 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program.
[2024-12-02 13:08:09,079 INFO L283 CfgBuilder]: Performing block encoding
[2024-12-02 13:08:09,261 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-12-02 13:08:09,261 INFO L312 CfgBuilder]: Removed 0 assume(true) statements.
[2024-12-02 13:08:09,261 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:08:09 BoogieIcfgContainer
[2024-12-02 13:08:09,262 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-12-02 13:08:09,264 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-12-02 13:08:09,264 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-12-02 13:08:09,267 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-12-02 13:08:09,268 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:08:08" (1/3) ...
[2024-12-02 13:08:09,268 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@160d95bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:08:09, skipping insertion in model container
[2024-12-02 13:08:09,268 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:08" (2/3) ...
[2024-12-02 13:08:09,269 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@160d95bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:08:09, skipping insertion in model container
[2024-12-02 13:08:09,269 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:08:09" (3/3) ...
[2024-12-02 13:08:09,270 INFO L128 eAbstractionObserver]: Analyzing ICFG rfi008.opt.i
[2024-12-02 13:08:09,281 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-12-02 13:08:09,283 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG rfi008.opt.i that has 3 procedures, 31 locations, 1 initial locations, 0 loop locations, and 4 error locations.
[2024-12-02 13:08:09,283 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2024-12-02 13:08:09,332 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2024-12-02 13:08:09,365 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 37 places, 30 transitions, 68 flow
[2024-12-02 13:08:09,394 INFO L124 PetriNetUnfolderBase]: 0/28 cut-off events.
[2024-12-02 13:08:09,396 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-12-02 13:08:09,398 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 50 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.
[2024-12-02 13:08:09,398 INFO L82 GeneralOperation]: Start removeDead. Operand has 37 places, 30 transitions, 68 flow
[2024-12-02 13:08:09,401 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 35 places, 28 transitions, 62 flow
[2024-12-02 13:08:09,408 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-12-02 13:08:09,420 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;@401f9d65, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-12-02 13:08:09,420 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations.
[2024-12-02 13:08:09,429 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2024-12-02 13:08:09,429 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events.
[2024-12-02 13:08:09,429 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-12-02 13:08:09,429 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 13:08:09,430 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 13:08:09,430 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] ===
[2024-12-02 13:08:09,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 13:08:09,436 INFO L85 PathProgramCache]: Analyzing trace with hash 1545444889, now seen corresponding path program 1 times
[2024-12-02 13:08:09,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 13:08:09,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078698876]
[2024-12-02 13:08:09,444 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 13:08:09,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 13:08:09,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 13:08:09,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 13:08:09,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 13:08:09,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078698876]
[2024-12-02 13:08:09,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078698876] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 13:08:09,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 13:08:09,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2024-12-02 13:08:09,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826418975]
[2024-12-02 13:08:09,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 13:08:09,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 13:08:09,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 13:08:09,740 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 13:08:09,741 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 13:08:09,746 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 30
[2024-12-02 13:08:09,749 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 28 transitions, 62 flow. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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)
[2024-12-02 13:08:09,749 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-02 13:08:09,749 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 30
[2024-12-02 13:08:09,750 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-02 13:08:09,982 INFO L124 PetriNetUnfolderBase]: 225/418 cut-off events.
[2024-12-02 13:08:09,983 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES.
[2024-12-02 13:08:09,985 INFO L83 FinitePrefix]: Finished finitePrefix Result has 826 conditions, 418 events. 225/418 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1976 event pairs, 75 based on Foata normal form. 0/374 useless extension candidates. Maximal degree in co-relation 816. Up to 305 conditions per place.
[2024-12-02 13:08:09,989 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 27 selfloop transitions, 3 changer transitions 2/40 dead transitions.
[2024-12-02 13:08:09,989 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 40 transitions, 153 flow
[2024-12-02 13:08:09,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 13:08:09,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-12-02 13:08:10,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 66 transitions.
[2024-12-02 13:08:10,001 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7333333333333333
[2024-12-02 13:08:10,003 INFO L175 Difference]: Start difference. First operand has 35 places, 28 transitions, 62 flow. Second operand 3 states and 66 transitions.
[2024-12-02 13:08:10,004 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 40 transitions, 153 flow
[2024-12-02 13:08:10,007 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 40 transitions, 150 flow, removed 0 selfloop flow, removed 2 redundant places.
[2024-12-02 13:08:10,010 INFO L231 Difference]: Finished difference. Result has 36 places, 28 transitions, 77 flow
[2024-12-02 13:08:10,012 INFO L262 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}
[2024-12-02 13:08:10,016 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 1 predicate places.
[2024-12-02 13:08:10,016 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 28 transitions, 77 flow
[2024-12-02 13:08:10,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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)
[2024-12-02 13:08:10,016 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 13:08:10,016 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 13:08:10,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-12-02 13:08:10,017 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] ===
[2024-12-02 13:08:10,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 13:08:10,017 INFO L85 PathProgramCache]: Analyzing trace with hash 335801735, now seen corresponding path program 1 times
[2024-12-02 13:08:10,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 13:08:10,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205136073]
[2024-12-02 13:08:10,018 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 13:08:10,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 13:08:10,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 13:08:10,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 13:08:10,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 13:08:10,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205136073]
[2024-12-02 13:08:10,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205136073] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 13:08:10,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 13:08:10,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-12-02 13:08:10,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473429754]
[2024-12-02 13:08:10,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 13:08:10,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 13:08:10,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 13:08:10,229 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 13:08:10,230 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 13:08:10,234 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 30
[2024-12-02 13:08:10,234 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 28 transitions, 77 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)
[2024-12-02 13:08:10,234 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-02 13:08:10,234 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 30
[2024-12-02 13:08:10,234 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-02 13:08:10,418 INFO L124 PetriNetUnfolderBase]: 163/316 cut-off events.
[2024-12-02 13:08:10,419 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES.
[2024-12-02 13:08:10,420 INFO L83 FinitePrefix]: Finished finitePrefix Result has 707 conditions, 316 events. 163/316 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1474 event pairs, 55 based on Foata normal form. 0/312 useless extension candidates. Maximal degree in co-relation 696. Up to 202 conditions per place.
[2024-12-02 13:08:10,422 INFO L140 encePairwiseOnDemand]: 25/30 looper letters, 25 selfloop transitions, 3 changer transitions 0/36 dead transitions.
[2024-12-02 13:08:10,422 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 36 transitions, 147 flow
[2024-12-02 13:08:10,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-12-02 13:08:10,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-12-02 13:08:10,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 70 transitions.
[2024-12-02 13:08:10,424 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334
[2024-12-02 13:08:10,424 INFO L175 Difference]: Start difference. First operand has 36 places, 28 transitions, 77 flow. Second operand 4 states and 70 transitions.
[2024-12-02 13:08:10,424 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 36 transitions, 147 flow
[2024-12-02 13:08:10,425 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 36 transitions, 144 flow, removed 0 selfloop flow, removed 1 redundant places.
[2024-12-02 13:08:10,426 INFO L231 Difference]: Finished difference. Result has 36 places, 26 transitions, 72 flow
[2024-12-02 13:08:10,426 INFO L262 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}
[2024-12-02 13:08:10,426 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 1 predicate places.
[2024-12-02 13:08:10,427 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 26 transitions, 72 flow
[2024-12-02 13:08:10,427 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)
[2024-12-02 13:08:10,427 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 13:08:10,427 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 13:08:10,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-12-02 13:08:10,427 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] ===
[2024-12-02 13:08:10,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 13:08:10,428 INFO L85 PathProgramCache]: Analyzing trace with hash 73699960, now seen corresponding path program 1 times
[2024-12-02 13:08:10,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 13:08:10,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292908358]
[2024-12-02 13:08:10,428 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 13:08:10,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 13:08:10,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 13:08:10,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 13:08:10,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 13:08:10,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292908358]
[2024-12-02 13:08:10,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292908358] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 13:08:10,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 13:08:10,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-12-02 13:08:10,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845507087]
[2024-12-02 13:08:10,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 13:08:10,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 13:08:10,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 13:08:10,594 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 13:08:10,594 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-12-02 13:08:10,601 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 30
[2024-12-02 13:08:10,601 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 26 transitions, 72 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)
[2024-12-02 13:08:10,601 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-02 13:08:10,601 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 30
[2024-12-02 13:08:10,601 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-02 13:08:10,731 INFO L124 PetriNetUnfolderBase]: 137/270 cut-off events.
[2024-12-02 13:08:10,732 INFO L125 PetriNetUnfolderBase]: For 94/94 co-relation queries the response was YES.
[2024-12-02 13:08:10,733 INFO L83 FinitePrefix]: Finished finitePrefix Result has 596 conditions, 270 events. 137/270 cut-off events. For 94/94 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1269 event pairs, 45 based on Foata normal form. 20/286 useless extension candidates. Maximal degree in co-relation 584. Up to 156 conditions per place.
[2024-12-02 13:08:10,733 INFO L140 encePairwiseOnDemand]: 25/30 looper letters, 0 selfloop transitions, 0 changer transitions 34/34 dead transitions.
[2024-12-02 13:08:10,733 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 34 transitions, 138 flow
[2024-12-02 13:08:10,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-12-02 13:08:10,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-12-02 13:08:10,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 68 transitions.
[2024-12-02 13:08:10,735 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5666666666666667
[2024-12-02 13:08:10,735 INFO L175 Difference]: Start difference. First operand has 36 places, 26 transitions, 72 flow. Second operand 4 states and 68 transitions.
[2024-12-02 13:08:10,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 34 transitions, 138 flow
[2024-12-02 13:08:10,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 34 transitions, 131 flow, removed 0 selfloop flow, removed 3 redundant places.
[2024-12-02 13:08:10,736 INFO L231 Difference]: Finished difference. Result has 34 places, 0 transitions, 0 flow
[2024-12-02 13:08:10,737 INFO L262 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}
[2024-12-02 13:08:10,737 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, -1 predicate places.
[2024-12-02 13:08:10,737 INFO L471 AbstractCegarLoop]: Abstraction has has 34 places, 0 transitions, 0 flow
[2024-12-02 13:08:10,738 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)
[2024-12-02 13:08:10,740 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining)
[2024-12-02 13:08:10,740 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining)
[2024-12-02 13:08:10,741 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining)
[2024-12-02 13:08:10,741 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining)
[2024-12-02 13:08:10,741 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining)
[2024-12-02 13:08:10,741 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining)
[2024-12-02 13:08:10,741 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining)
[2024-12-02 13:08:10,741 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining)
[2024-12-02 13:08:10,741 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining)
[2024-12-02 13:08:10,741 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining)
[2024-12-02 13:08:10,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-12-02 13:08:10,742 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2024-12-02 13:08:10,747 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances
[2024-12-02 13:08:10,747 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-12-02 13:08:10,753 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 01:08:10 BasicIcfg
[2024-12-02 13:08:10,753 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-12-02 13:08:10,754 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-12-02 13:08:10,754 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-12-02 13:08:10,754 INFO L274 PluginConnector]: Witness Printer initialized
[2024-12-02 13:08:10,755 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:08:09" (3/4) ...
[2024-12-02 13:08:10,756 INFO L146 WitnessPrinter]: Generating witness for correct program
[2024-12-02 13:08:10,759 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0
[2024-12-02 13:08:10,759 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1
[2024-12-02 13:08:10,763 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 61 nodes and edges
[2024-12-02 13:08:10,764 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges
[2024-12-02 13:08:10,764 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges
[2024-12-02 13:08:10,764 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges
[2024-12-02 13:08:10,839 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcdfb64a-38b0-48f5-8df5-9830fd0947a1/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml
[2024-12-02 13:08:10,839 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcdfb64a-38b0-48f5-8df5-9830fd0947a1/bin/uautomizer-verify-84ZbGMXZE1/witness.yml
[2024-12-02 13:08:10,839 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-12-02 13:08:10,840 INFO L158 Benchmark]: Toolchain (without parser) took 2712.69ms. Allocated memory was 142.6MB in the beginning and 318.8MB in the end (delta: 176.2MB). Free memory was 115.9MB in the beginning and 273.2MB in the end (delta: -157.2MB). Peak memory consumption was 17.8MB. Max. memory is 16.1GB.
[2024-12-02 13:08:10,840 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 142.6MB. Free memory is still 83.6MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 13:08:10,841 INFO L158 Benchmark]: CACSL2BoogieTranslator took 406.36ms. Allocated memory is still 142.6MB. Free memory was 115.9MB in the beginning and 92.5MB in the end (delta: 23.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB.
[2024-12-02 13:08:10,841 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.69ms. Allocated memory is still 142.6MB. Free memory was 92.5MB in the beginning and 90.0MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 13:08:10,841 INFO L158 Benchmark]: Boogie Preprocessor took 43.56ms. Allocated memory is still 142.6MB. Free memory was 90.0MB in the beginning and 86.8MB in the end (delta: 3.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-12-02 13:08:10,841 INFO L158 Benchmark]: RCFGBuilder took 640.06ms. Allocated memory is still 142.6MB. Free memory was 86.8MB in the beginning and 92.9MB in the end (delta: -6.1MB). Peak memory consumption was 39.3MB. Max. memory is 16.1GB.
[2024-12-02 13:08:10,842 INFO L158 Benchmark]: TraceAbstraction took 1489.72ms. Allocated memory was 142.6MB in the beginning and 318.8MB in the end (delta: 176.2MB). Free memory was 92.3MB in the beginning and 278.3MB in the end (delta: -186.0MB). Peak memory consumption was 62.4MB. Max. memory is 16.1GB.
[2024-12-02 13:08:10,842 INFO L158 Benchmark]: Witness Printer took 85.36ms. Allocated memory is still 318.8MB. Free memory was 278.3MB in the beginning and 273.2MB in the end (delta: 5.1MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 13:08:10,844 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.31ms. Allocated memory is still 142.6MB. Free memory is still 83.6MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 406.36ms. Allocated memory is still 142.6MB. Free memory was 115.9MB in the beginning and 92.5MB in the end (delta: 23.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 41.69ms. Allocated memory is still 142.6MB. Free memory was 92.5MB in the beginning and 90.0MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 43.56ms. Allocated memory is still 142.6MB. Free memory was 90.0MB in the beginning and 86.8MB in the end (delta: 3.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* RCFGBuilder took 640.06ms. Allocated memory is still 142.6MB. Free memory was 86.8MB in the beginning and 92.9MB in the end (delta: -6.1MB). Peak memory consumption was 39.3MB. Max. memory is 16.1GB.
* TraceAbstraction took 1489.72ms. Allocated memory was 142.6MB in the beginning and 318.8MB in the end (delta: 176.2MB). Free memory was 92.3MB in the beginning and 278.3MB in the end (delta: -186.0MB). Peak memory consumption was 62.4MB. Max. memory is 16.1GB.
* Witness Printer took 85.36ms. Allocated memory is still 318.8MB. Free memory was 278.3MB in the beginning and 273.2MB in the end (delta: 5.1MB). There was no memory consumed. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- PositiveResult [Line: 767]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- PositiveResult [Line: 767]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- PositiveResult [Line: 811]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- PositiveResult [Line: 811]: 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: 1.4s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 58 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 52 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 134 IncrementalHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 0 mSDtfsCounter, 134 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, 0.1s SatisfiabilityAnalysisTime, 0.4s 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, ConComCheckerStatistics: No data available
- AllSpecificationsHoldResult: All specifications hold
4 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2024-12-02 13:08:10,861 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcdfb64a-38b0-48f5-8df5-9830fd0947a1/bin/uautomizer-verify-84ZbGMXZE1/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