./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/rfi002_tso.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_a0a26cdc-c7fa-4035-959c-a80004e662e4/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a26cdc-c7fa-4035-959c-a80004e662e4/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_a0a26cdc-c7fa-4035-959c-a80004e662e4/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a26cdc-c7fa-4035-959c-a80004e662e4/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/rfi002_tso.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a26cdc-c7fa-4035-959c-a80004e662e4/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_a0a26cdc-c7fa-4035-959c-a80004e662e4/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 48e6a57243e80a87d178da358ff4ad1dd63b86003507ef0dec3764d15038130a
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-d790fec
[2024-12-02 05:50:09,130 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-12-02 05:50:09,193 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a26cdc-c7fa-4035-959c-a80004e662e4/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-32bit-Automizer_Default.epf
[2024-12-02 05:50:09,198 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-12-02 05:50:09,198 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-12-02 05:50:09,222 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-12-02 05:50:09,223 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-12-02 05:50:09,223 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-12-02 05:50:09,223 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-12-02 05:50:09,223 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-12-02 05:50:09,223 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-12-02 05:50:09,224 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-12-02 05:50:09,224 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-12-02 05:50:09,224 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-12-02 05:50:09,224 INFO L153 SettingsManager]: * Use SBE=true
[2024-12-02 05:50:09,224 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-12-02 05:50:09,224 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-12-02 05:50:09,224 INFO L153 SettingsManager]: * sizeof long=4
[2024-12-02 05:50:09,225 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-12-02 05:50:09,225 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-12-02 05:50:09,225 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-12-02 05:50:09,225 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-12-02 05:50:09,225 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-12-02 05:50:09,225 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-12-02 05:50:09,225 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME
[2024-12-02 05:50:09,225 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-12-02 05:50:09,225 INFO L153 SettingsManager]: * sizeof long double=12
[2024-12-02 05:50:09,225 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-12-02 05:50:09,225 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-12-02 05:50:09,225 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-12-02 05:50:09,226 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-12-02 05:50:09,226 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 05:50:09,226 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 05:50:09,226 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 05:50:09,226 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 05:50:09,226 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-12-02 05:50:09,226 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 05:50:09,226 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 05:50:09,226 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 05:50:09,226 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 05:50:09,227 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-12-02 05:50:09,227 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-12-02 05:50:09,227 INFO L153 SettingsManager]: * Compute procedure contracts=false
[2024-12-02 05:50:09,227 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-12-02 05:50:09,227 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-12-02 05:50:09,227 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-12-02 05:50:09,227 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-12-02 05:50:09,227 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-12-02 05:50:09,227 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-12-02 05:50:09,227 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-12-02 05:50:09,227 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_a0a26cdc-c7fa-4035-959c-a80004e662e4/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 -> 48e6a57243e80a87d178da358ff4ad1dd63b86003507ef0dec3764d15038130a
[2024-12-02 05:50:09,491 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-12-02 05:50:09,501 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-12-02 05:50:09,504 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-12-02 05:50:09,505 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-12-02 05:50:09,506 INFO L274 PluginConnector]: CDTParser initialized
[2024-12-02 05:50:09,507 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a26cdc-c7fa-4035-959c-a80004e662e4/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/pthread-wmm/rfi002_tso.i
[2024-12-02 05:50:12,259 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a26cdc-c7fa-4035-959c-a80004e662e4/bin/uautomizer-verify-84ZbGMXZE1/data/e346f28a6/0b356f6fed1c400299c19c4d2b591dc8/FLAGc7d99ca3a
[2024-12-02 05:50:12,497 INFO L384 CDTParser]: Found 1 translation units.
[2024-12-02 05:50:12,497 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a26cdc-c7fa-4035-959c-a80004e662e4/sv-benchmarks/c/pthread-wmm/rfi002_tso.i
[2024-12-02 05:50:12,512 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a26cdc-c7fa-4035-959c-a80004e662e4/bin/uautomizer-verify-84ZbGMXZE1/data/e346f28a6/0b356f6fed1c400299c19c4d2b591dc8/FLAGc7d99ca3a
[2024-12-02 05:50:12,526 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a26cdc-c7fa-4035-959c-a80004e662e4/bin/uautomizer-verify-84ZbGMXZE1/data/e346f28a6/0b356f6fed1c400299c19c4d2b591dc8
[2024-12-02 05:50:12,528 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-12-02 05:50:12,529 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-12-02 05:50:12,530 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-12-02 05:50:12,530 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-12-02 05:50:12,535 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-12-02 05:50:12,536 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:50:12" (1/1) ...
[2024-12-02 05:50:12,537 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b38f89e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:50:12, skipping insertion in model container
[2024-12-02 05:50:12,537 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:50:12" (1/1) ...
[2024-12-02 05:50:12,578 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-12-02 05:50:12,967 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 05:50:12,979 INFO L200 MainTranslator]: Completed pre-run
[2024-12-02 05:50:13,055 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 05:50:13,088 INFO L204 MainTranslator]: Completed translation
[2024-12-02 05:50:13,088 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:50:13 WrapperNode
[2024-12-02 05:50:13,088 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-12-02 05:50:13,089 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-12-02 05:50:13,090 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-12-02 05:50:13,090 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-12-02 05:50:13,095 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:50:13" (1/1) ...
[2024-12-02 05:50:13,111 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:50:13" (1/1) ...
[2024-12-02 05:50:13,143 INFO L138 Inliner]: procedures = 174, calls = 41, calls flagged for inlining = 7, calls inlined = 9, statements flattened = 214
[2024-12-02 05:50:13,143 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-12-02 05:50:13,144 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-12-02 05:50:13,144 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-12-02 05:50:13,144 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-12-02 05:50:13,153 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:50:13" (1/1) ...
[2024-12-02 05:50:13,153 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:50:13" (1/1) ...
[2024-12-02 05:50:13,157 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:50:13" (1/1) ...
[2024-12-02 05:50:13,177 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 05:50:13,177 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:50:13" (1/1) ...
[2024-12-02 05:50:13,177 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:50:13" (1/1) ...
[2024-12-02 05:50:13,189 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:50:13" (1/1) ...
[2024-12-02 05:50:13,194 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:50:13" (1/1) ...
[2024-12-02 05:50:13,196 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:50:13" (1/1) ...
[2024-12-02 05:50:13,199 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:50:13" (1/1) ...
[2024-12-02 05:50:13,201 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:50:13" (1/1) ...
[2024-12-02 05:50:13,205 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-12-02 05:50:13,206 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-12-02 05:50:13,206 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-12-02 05:50:13,206 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-12-02 05:50:13,207 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:50:13" (1/1) ...
[2024-12-02 05:50:13,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 05:50:13,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a26cdc-c7fa-4035-959c-a80004e662e4/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 05:50:13,238 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a26cdc-c7fa-4035-959c-a80004e662e4/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-12-02 05:50:13,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a26cdc-c7fa-4035-959c-a80004e662e4/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-12-02 05:50:13,265 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2024-12-02 05:50:13,265 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-12-02 05:50:13,265 INFO L130 BoogieDeclarations]: Found specification of procedure P0
[2024-12-02 05:50:13,265 INFO L138 BoogieDeclarations]: Found implementation of procedure P0
[2024-12-02 05:50:13,265 INFO L130 BoogieDeclarations]: Found specification of procedure P1
[2024-12-02 05:50:13,265 INFO L138 BoogieDeclarations]: Found implementation of procedure P1
[2024-12-02 05:50:13,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-12-02 05:50:13,265 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2024-12-02 05:50:13,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-12-02 05:50:13,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-12-02 05:50:13,267 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 05:50:13,392 INFO L234 CfgBuilder]: Building ICFG
[2024-12-02 05:50:13,394 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-12-02 05:50:13,860 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program.
[2024-12-02 05:50:13,860 INFO L283 CfgBuilder]: Performing block encoding
[2024-12-02 05:50:14,218 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-12-02 05:50:14,218 INFO L312 CfgBuilder]: Removed 0 assume(true) statements.
[2024-12-02 05:50:14,219 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:50:14 BoogieIcfgContainer
[2024-12-02 05:50:14,219 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-12-02 05:50:14,221 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-12-02 05:50:14,221 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-12-02 05:50:14,226 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-12-02 05:50:14,226 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 05:50:12" (1/3) ...
[2024-12-02 05:50:14,227 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fb37e80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:50:14, skipping insertion in model container
[2024-12-02 05:50:14,227 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:50:13" (2/3) ...
[2024-12-02 05:50:14,227 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fb37e80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:50:14, skipping insertion in model container
[2024-12-02 05:50:14,228 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:50:14" (3/3) ...
[2024-12-02 05:50:14,229 INFO L128 eAbstractionObserver]: Analyzing ICFG rfi002_tso.i
[2024-12-02 05:50:14,247 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-12-02 05:50:14,250 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG rfi002_tso.i that has 3 procedures, 32 locations, 1 initial locations, 0 loop locations, and 4 error locations.
[2024-12-02 05:50:14,250 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2024-12-02 05:50:14,323 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2024-12-02 05:50:14,362 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 38 places, 31 transitions, 70 flow
[2024-12-02 05:50:14,398 INFO L124 PetriNetUnfolderBase]: 0/29 cut-off events.
[2024-12-02 05:50:14,400 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-12-02 05:50:14,402 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36 conditions, 29 events. 0/29 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 47 event pairs, 0 based on Foata normal form. 0/25 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place.
[2024-12-02 05:50:14,402 INFO L82 GeneralOperation]: Start removeDead. Operand has 38 places, 31 transitions, 70 flow
[2024-12-02 05:50:14,405 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 36 places, 29 transitions, 64 flow
[2024-12-02 05:50:14,413 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-12-02 05:50:14,424 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;@1da3648, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-12-02 05:50:14,424 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations.
[2024-12-02 05:50:14,433 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2024-12-02 05:50:14,434 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events.
[2024-12-02 05:50:14,434 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-12-02 05:50:14,434 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 05:50:14,434 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 05:50:14,435 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 05:50:14,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 05:50:14,440 INFO L85 PathProgramCache]: Analyzing trace with hash -1668946722, now seen corresponding path program 1 times
[2024-12-02 05:50:14,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 05:50:14,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697377503]
[2024-12-02 05:50:14,448 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 05:50:14,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 05:50:14,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 05:50:14,779 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 05:50:14,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 05:50:14,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697377503]
[2024-12-02 05:50:14,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697377503] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 05:50:14,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 05:50:14,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2024-12-02 05:50:14,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302805482]
[2024-12-02 05:50:14,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 05:50:14,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 05:50:14,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 05:50:14,815 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 05:50:14,815 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 05:50:14,822 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 31
[2024-12-02 05:50:14,825 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 29 transitions, 64 flow. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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 05:50:14,825 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-02 05:50:14,825 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 31
[2024-12-02 05:50:14,826 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-02 05:50:15,282 INFO L124 PetriNetUnfolderBase]: 519/876 cut-off events.
[2024-12-02 05:50:15,282 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES.
[2024-12-02 05:50:15,286 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1762 conditions, 876 events. 519/876 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 4030 event pairs, 247 based on Foata normal form. 0/826 useless extension candidates. Maximal degree in co-relation 1752. Up to 505 conditions per place.
[2024-12-02 05:50:15,291 INFO L140 encePairwiseOnDemand]: 24/31 looper letters, 37 selfloop transitions, 3 changer transitions 2/46 dead transitions.
[2024-12-02 05:50:15,292 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 46 transitions, 185 flow
[2024-12-02 05:50:15,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 05:50:15,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-12-02 05:50:15,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 64 transitions.
[2024-12-02 05:50:15,305 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6881720430107527
[2024-12-02 05:50:15,307 INFO L175 Difference]: Start difference. First operand has 36 places, 29 transitions, 64 flow. Second operand 3 states and 64 transitions.
[2024-12-02 05:50:15,308 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 46 transitions, 185 flow
[2024-12-02 05:50:15,312 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 46 transitions, 182 flow, removed 0 selfloop flow, removed 2 redundant places.
[2024-12-02 05:50:15,315 INFO L231 Difference]: Finished difference. Result has 37 places, 29 transitions, 79 flow
[2024-12-02 05:50:15,317 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=79, PETRI_PLACES=37, PETRI_TRANSITIONS=29}
[2024-12-02 05:50:15,320 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 1 predicate places.
[2024-12-02 05:50:15,320 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 29 transitions, 79 flow
[2024-12-02 05:50:15,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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 05:50:15,321 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 05:50:15,321 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 05:50:15,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-12-02 05:50:15,321 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 05:50:15,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 05:50:15,322 INFO L85 PathProgramCache]: Analyzing trace with hash -1626550425, now seen corresponding path program 1 times
[2024-12-02 05:50:15,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 05:50:15,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233321035]
[2024-12-02 05:50:15,322 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 05:50:15,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 05:50:15,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 05:50:15,672 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 05:50:15,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 05:50:15,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233321035]
[2024-12-02 05:50:15,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233321035] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 05:50:15,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 05:50:15,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-12-02 05:50:15,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674377832]
[2024-12-02 05:50:15,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 05:50:15,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 05:50:15,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 05:50:15,675 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 05:50:15,675 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 05:50:15,680 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 31
[2024-12-02 05:50:15,681 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 29 transitions, 79 flow. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 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 05:50:15,681 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-02 05:50:15,681 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 31
[2024-12-02 05:50:15,681 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-02 05:50:16,014 INFO L124 PetriNetUnfolderBase]: 443/752 cut-off events.
[2024-12-02 05:50:16,014 INFO L125 PetriNetUnfolderBase]: For 43/43 co-relation queries the response was YES.
[2024-12-02 05:50:16,016 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1663 conditions, 752 events. 443/752 cut-off events. For 43/43 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 3402 event pairs, 223 based on Foata normal form. 0/750 useless extension candidates. Maximal degree in co-relation 1652. Up to 380 conditions per place.
[2024-12-02 05:50:16,020 INFO L140 encePairwiseOnDemand]: 26/31 looper letters, 35 selfloop transitions, 3 changer transitions 0/42 dead transitions.
[2024-12-02 05:50:16,020 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 42 transitions, 179 flow
[2024-12-02 05:50:16,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-12-02 05:50:16,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-12-02 05:50:16,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 64 transitions.
[2024-12-02 05:50:16,022 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5161290322580645
[2024-12-02 05:50:16,022 INFO L175 Difference]: Start difference. First operand has 37 places, 29 transitions, 79 flow. Second operand 4 states and 64 transitions.
[2024-12-02 05:50:16,022 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 42 transitions, 179 flow
[2024-12-02 05:50:16,023 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 42 transitions, 176 flow, removed 0 selfloop flow, removed 1 redundant places.
[2024-12-02 05:50:16,024 INFO L231 Difference]: Finished difference. Result has 37 places, 27 transitions, 74 flow
[2024-12-02 05:50:16,024 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=74, PETRI_PLACES=37, PETRI_TRANSITIONS=27}
[2024-12-02 05:50:16,025 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 1 predicate places.
[2024-12-02 05:50:16,025 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 27 transitions, 74 flow
[2024-12-02 05:50:16,026 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 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 05:50:16,026 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 05:50:16,026 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 05:50:16,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-12-02 05:50:16,026 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 05:50:16,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 05:50:16,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1626550424, now seen corresponding path program 1 times
[2024-12-02 05:50:16,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 05:50:16,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126385186]
[2024-12-02 05:50:16,027 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 05:50:16,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 05:50:16,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 05:50:16,257 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 05:50:16,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 05:50:16,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126385186]
[2024-12-02 05:50:16,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126385186] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 05:50:16,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 05:50:16,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-12-02 05:50:16,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210814353]
[2024-12-02 05:50:16,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 05:50:16,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 05:50:16,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 05:50:16,258 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 05:50:16,258 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-12-02 05:50:16,264 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 31
[2024-12-02 05:50:16,264 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 27 transitions, 74 flow. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 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 05:50:16,264 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-02 05:50:16,264 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 31
[2024-12-02 05:50:16,264 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-02 05:50:16,612 INFO L124 PetriNetUnfolderBase]: 411/696 cut-off events.
[2024-12-02 05:50:16,612 INFO L125 PetriNetUnfolderBase]: For 136/136 co-relation queries the response was YES.
[2024-12-02 05:50:16,613 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1528 conditions, 696 events. 411/696 cut-off events. For 136/136 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 3149 event pairs, 211 based on Foata normal form. 24/718 useless extension candidates. Maximal degree in co-relation 1516. Up to 364 conditions per place.
[2024-12-02 05:50:16,614 INFO L140 encePairwiseOnDemand]: 26/31 looper letters, 0 selfloop transitions, 0 changer transitions 40/40 dead transitions.
[2024-12-02 05:50:16,614 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 40 transitions, 170 flow
[2024-12-02 05:50:16,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-12-02 05:50:16,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-12-02 05:50:16,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 62 transitions.
[2024-12-02 05:50:16,616 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5
[2024-12-02 05:50:16,616 INFO L175 Difference]: Start difference. First operand has 37 places, 27 transitions, 74 flow. Second operand 4 states and 62 transitions.
[2024-12-02 05:50:16,616 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 40 transitions, 170 flow
[2024-12-02 05:50:16,618 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 40 transitions, 163 flow, removed 0 selfloop flow, removed 3 redundant places.
[2024-12-02 05:50:16,618 INFO L231 Difference]: Finished difference. Result has 35 places, 0 transitions, 0 flow
[2024-12-02 05:50:16,618 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=59, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=35, PETRI_TRANSITIONS=0}
[2024-12-02 05:50:16,619 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, -1 predicate places.
[2024-12-02 05:50:16,619 INFO L471 AbstractCegarLoop]: Abstraction has has 35 places, 0 transitions, 0 flow
[2024-12-02 05:50:16,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 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 05:50:16,622 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining)
[2024-12-02 05:50:16,622 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining)
[2024-12-02 05:50:16,623 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining)
[2024-12-02 05:50:16,623 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining)
[2024-12-02 05:50:16,623 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining)
[2024-12-02 05:50:16,623 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining)
[2024-12-02 05:50:16,623 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining)
[2024-12-02 05:50:16,623 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining)
[2024-12-02 05:50:16,623 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining)
[2024-12-02 05:50:16,623 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining)
[2024-12-02 05:50:16,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-12-02 05:50:16,624 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2024-12-02 05:50:16,630 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances
[2024-12-02 05:50:16,630 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-12-02 05:50:16,636 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 05:50:16 BasicIcfg
[2024-12-02 05:50:16,636 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-12-02 05:50:16,636 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-12-02 05:50:16,636 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-12-02 05:50:16,637 INFO L274 PluginConnector]: Witness Printer initialized
[2024-12-02 05:50:16,637 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:50:14" (3/4) ...
[2024-12-02 05:50:16,639 INFO L146 WitnessPrinter]: Generating witness for correct program
[2024-12-02 05:50:16,642 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0
[2024-12-02 05:50:16,642 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1
[2024-12-02 05:50:16,647 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 99 nodes and edges
[2024-12-02 05:50:16,647 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges
[2024-12-02 05:50:16,647 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges
[2024-12-02 05:50:16,648 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges
[2024-12-02 05:50:16,734 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a26cdc-c7fa-4035-959c-a80004e662e4/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml
[2024-12-02 05:50:16,734 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a26cdc-c7fa-4035-959c-a80004e662e4/bin/uautomizer-verify-84ZbGMXZE1/witness.yml
[2024-12-02 05:50:16,734 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-12-02 05:50:16,735 INFO L158 Benchmark]: Toolchain (without parser) took 4206.49ms. Allocated memory was 117.4MB in the beginning and 209.7MB in the end (delta: 92.3MB). Free memory was 91.1MB in the beginning and 158.7MB in the end (delta: -67.6MB). Peak memory consumption was 23.4MB. Max. memory is 16.1GB.
[2024-12-02 05:50:16,736 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 117.4MB. Free memory is still 73.1MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 05:50:16,736 INFO L158 Benchmark]: CACSL2BoogieTranslator took 558.93ms. Allocated memory is still 117.4MB. Free memory was 90.8MB in the beginning and 63.2MB in the end (delta: 27.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB.
[2024-12-02 05:50:16,736 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.72ms. Allocated memory is still 117.4MB. Free memory was 63.2MB in the beginning and 59.8MB in the end (delta: 3.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-12-02 05:50:16,736 INFO L158 Benchmark]: Boogie Preprocessor took 61.55ms. Allocated memory is still 117.4MB. Free memory was 59.8MB in the beginning and 54.7MB in the end (delta: 5.1MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 05:50:16,737 INFO L158 Benchmark]: RCFGBuilder took 1013.05ms. Allocated memory is still 117.4MB. Free memory was 54.4MB in the beginning and 66.2MB in the end (delta: -11.8MB). Peak memory consumption was 29.6MB. Max. memory is 16.1GB.
[2024-12-02 05:50:16,737 INFO L158 Benchmark]: TraceAbstraction took 2414.83ms. Allocated memory was 117.4MB in the beginning and 209.7MB in the end (delta: 92.3MB). Free memory was 66.2MB in the beginning and 165.4MB in the end (delta: -99.2MB). Peak memory consumption was 106.7MB. Max. memory is 16.1GB.
[2024-12-02 05:50:16,737 INFO L158 Benchmark]: Witness Printer took 98.01ms. Allocated memory is still 209.7MB. Free memory was 163.2MB in the beginning and 158.7MB in the end (delta: 4.5MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 05:50:16,739 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.29ms. Allocated memory is still 117.4MB. Free memory is still 73.1MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 558.93ms. Allocated memory is still 117.4MB. Free memory was 90.8MB in the beginning and 63.2MB in the end (delta: 27.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 53.72ms. Allocated memory is still 117.4MB. Free memory was 63.2MB in the beginning and 59.8MB in the end (delta: 3.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 61.55ms. Allocated memory is still 117.4MB. Free memory was 59.8MB in the beginning and 54.7MB in the end (delta: 5.1MB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 1013.05ms. Allocated memory is still 117.4MB. Free memory was 54.4MB in the beginning and 66.2MB in the end (delta: -11.8MB). Peak memory consumption was 29.6MB. Max. memory is 16.1GB.
* TraceAbstraction took 2414.83ms. Allocated memory was 117.4MB in the beginning and 209.7MB in the end (delta: 92.3MB). Free memory was 66.2MB in the beginning and 165.4MB in the end (delta: -99.2MB). Peak memory consumption was 106.7MB. Max. memory is 16.1GB.
* Witness Printer took 98.01ms. Allocated memory is still 209.7MB. Free memory was 163.2MB in the beginning and 158.7MB in the end (delta: 4.5MB). There was no memory consumed. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- PositiveResult [Line: 788]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- PositiveResult [Line: 788]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- PositiveResult [Line: 861]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- PositiveResult [Line: 861]: 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, 55 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: 2.3s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 69 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 63 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 174 IncrementalHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 1 mSDtfsCounter, 174 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=79occurred 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, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 117 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 05:50:16,755 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a26cdc-c7fa-4035-959c-a80004e662e4/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