./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/rfi001_power.opt_pso.opt_rmo.opt_tso.oepc_tso.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_4c26c6b1-f3c6-4d77-855f-1878cf34575a/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c26c6b1-f3c6-4d77-855f-1878cf34575a/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_4c26c6b1-f3c6-4d77-855f-1878cf34575a/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c26c6b1-f3c6-4d77-855f-1878cf34575a/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/rfi001_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c26c6b1-f3c6-4d77-855f-1878cf34575a/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_4c26c6b1-f3c6-4d77-855f-1878cf34575a/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 4c09a669e55905e4420a018d9d131490861f4e5b62b0d12706f3ee95b5f0c90f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 07:05:15,007 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 07:05:15,062 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c26c6b1-f3c6-4d77-855f-1878cf34575a/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-12-02 07:05:15,066 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 07:05:15,066 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 07:05:15,086 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 07:05:15,087 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 07:05:15,087 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 07:05:15,087 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 07:05:15,087 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 07:05:15,088 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 07:05:15,088 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 07:05:15,088 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 07:05:15,088 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 07:05:15,088 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 07:05:15,088 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 07:05:15,088 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 07:05:15,088 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 07:05:15,088 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 07:05:15,089 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 07:05:15,089 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 07:05:15,089 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 07:05:15,089 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 07:05:15,089 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 07:05:15,089 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-02 07:05:15,089 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 07:05:15,089 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 07:05:15,089 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 07:05:15,089 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 07:05:15,089 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 07:05:15,089 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 07:05:15,090 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:05:15,090 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:05:15,090 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:05:15,090 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:05:15,090 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 07:05:15,090 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:05:15,090 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:05:15,090 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:05:15,090 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:05:15,090 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 07:05:15,090 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 07:05:15,090 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 07:05:15,091 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 07:05:15,091 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 07:05:15,091 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 07:05:15,091 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 07:05:15,091 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 07:05:15,091 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 07:05:15,091 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 07:05:15,091 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_4c26c6b1-f3c6-4d77-855f-1878cf34575a/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 -> 4c09a669e55905e4420a018d9d131490861f4e5b62b0d12706f3ee95b5f0c90f [2024-12-02 07:05:15,292 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 07:05:15,299 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 07:05:15,301 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 07:05:15,302 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 07:05:15,302 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 07:05:15,303 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c26c6b1-f3c6-4d77-855f-1878cf34575a/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/pthread-wmm/rfi001_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2024-12-02 07:05:17,905 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c26c6b1-f3c6-4d77-855f-1878cf34575a/bin/uautomizer-verify-84ZbGMXZE1/data/1ce69e666/7aa7560b1c9441fb9109071f7e6355b0/FLAGd3512cdbb [2024-12-02 07:05:18,133 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 07:05:18,133 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c26c6b1-f3c6-4d77-855f-1878cf34575a/sv-benchmarks/c/pthread-wmm/rfi001_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2024-12-02 07:05:18,145 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c26c6b1-f3c6-4d77-855f-1878cf34575a/bin/uautomizer-verify-84ZbGMXZE1/data/1ce69e666/7aa7560b1c9441fb9109071f7e6355b0/FLAGd3512cdbb [2024-12-02 07:05:18,468 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c26c6b1-f3c6-4d77-855f-1878cf34575a/bin/uautomizer-verify-84ZbGMXZE1/data/1ce69e666/7aa7560b1c9441fb9109071f7e6355b0 [2024-12-02 07:05:18,469 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 07:05:18,471 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 07:05:18,471 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 07:05:18,471 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 07:05:18,474 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 07:05:18,475 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:05:18" (1/1) ... [2024-12-02 07:05:18,475 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8b16de8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:05:18, skipping insertion in model container [2024-12-02 07:05:18,476 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:05:18" (1/1) ... [2024-12-02 07:05:18,503 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 07:05:18,783 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:05:18,792 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 07:05:18,842 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:05:18,875 INFO L204 MainTranslator]: Completed translation [2024-12-02 07:05:18,876 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:05:18 WrapperNode [2024-12-02 07:05:18,876 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 07:05:18,877 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 07:05:18,877 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 07:05:18,877 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 07:05:18,882 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:05:18" (1/1) ... [2024-12-02 07:05:18,892 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:05:18" (1/1) ... [2024-12-02 07:05:18,908 INFO L138 Inliner]: procedures = 174, calls = 38, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 136 [2024-12-02 07:05:18,908 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 07:05:18,908 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 07:05:18,908 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 07:05:18,908 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 07:05:18,915 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:05:18" (1/1) ... [2024-12-02 07:05:18,915 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:05:18" (1/1) ... [2024-12-02 07:05:18,917 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:05:18" (1/1) ... [2024-12-02 07:05:18,928 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 07:05:18,928 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:05:18" (1/1) ... [2024-12-02 07:05:18,929 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:05:18" (1/1) ... [2024-12-02 07:05:18,935 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:05:18" (1/1) ... [2024-12-02 07:05:18,936 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:05:18" (1/1) ... [2024-12-02 07:05:18,938 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:05:18" (1/1) ... [2024-12-02 07:05:18,939 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:05:18" (1/1) ... [2024-12-02 07:05:18,940 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:05:18" (1/1) ... [2024-12-02 07:05:18,943 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 07:05:18,943 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 07:05:18,943 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 07:05:18,944 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 07:05:18,944 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:05:18" (1/1) ... [2024-12-02 07:05:18,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:05:18,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c26c6b1-f3c6-4d77-855f-1878cf34575a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:05:18,972 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c26c6b1-f3c6-4d77-855f-1878cf34575a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 07:05:18,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c26c6b1-f3c6-4d77-855f-1878cf34575a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 07:05:18,994 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-12-02 07:05:18,995 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 07:05:18,995 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-12-02 07:05:18,995 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-12-02 07:05:18,995 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-12-02 07:05:18,995 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-12-02 07:05:18,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 07:05:18,995 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-12-02 07:05:18,995 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 07:05:18,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 07:05:18,996 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 07:05:19,101 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 07:05:19,102 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 07:05:19,338 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-02 07:05:19,338 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 07:05:19,495 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 07:05:19,495 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-02 07:05:19,496 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:05:19 BoogieIcfgContainer [2024-12-02 07:05:19,496 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 07:05:19,497 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 07:05:19,498 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 07:05:19,501 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 07:05:19,501 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:05:18" (1/3) ... [2024-12-02 07:05:19,502 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e8b1c50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:05:19, skipping insertion in model container [2024-12-02 07:05:19,502 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:05:18" (2/3) ... [2024-12-02 07:05:19,502 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e8b1c50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:05:19, skipping insertion in model container [2024-12-02 07:05:19,502 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:05:19" (3/3) ... [2024-12-02 07:05:19,503 INFO L128 eAbstractionObserver]: Analyzing ICFG rfi001_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2024-12-02 07:05:19,514 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 07:05:19,515 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG rfi001_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i that has 3 procedures, 31 locations, 1 initial locations, 0 loop locations, and 4 error locations. [2024-12-02 07:05:19,516 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-02 07:05:19,554 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-12-02 07:05:19,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 37 places, 30 transitions, 68 flow [2024-12-02 07:05:19,606 INFO L124 PetriNetUnfolderBase]: 0/28 cut-off events. [2024-12-02 07:05:19,608 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 07:05:19,609 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 46 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 07:05:19,610 INFO L82 GeneralOperation]: Start removeDead. Operand has 37 places, 30 transitions, 68 flow [2024-12-02 07:05:19,612 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 35 places, 28 transitions, 62 flow [2024-12-02 07:05:19,618 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 07:05:19,629 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;@50eb7aa5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 07:05:19,629 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-12-02 07:05:19,635 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 07:05:19,636 INFO L124 PetriNetUnfolderBase]: 0/12 cut-off events. [2024-12-02 07:05:19,636 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 07:05:19,636 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:05:19,636 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:05:19,637 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 07:05:19,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:05:19,641 INFO L85 PathProgramCache]: Analyzing trace with hash 1876214394, now seen corresponding path program 1 times [2024-12-02 07:05:19,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:05:19,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039854604] [2024-12-02 07:05:19,647 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:05:19,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:05:19,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:05:19,881 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 07:05:19,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:05:19,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039854604] [2024-12-02 07:05:19,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039854604] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:05:19,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:05:19,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-12-02 07:05:19,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915023709] [2024-12-02 07:05:19,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:05:19,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:05:19,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:05:19,909 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:05:19,909 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:05:19,914 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 30 [2024-12-02 07:05:19,916 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 07:05:19,916 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:05:19,916 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 30 [2024-12-02 07:05:19,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:05:20,159 INFO L124 PetriNetUnfolderBase]: 237/431 cut-off events. [2024-12-02 07:05:20,160 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-12-02 07:05:20,163 INFO L83 FinitePrefix]: Finished finitePrefix Result has 859 conditions, 431 events. 237/431 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1962 event pairs, 75 based on Foata normal form. 0/373 useless extension candidates. Maximal degree in co-relation 849. Up to 335 conditions per place. [2024-12-02 07:05:20,167 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 27 selfloop transitions, 3 changer transitions 2/40 dead transitions. [2024-12-02 07:05:20,167 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 40 transitions, 153 flow [2024-12-02 07:05:20,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:05:20,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 07:05:20,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 66 transitions. [2024-12-02 07:05:20,179 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7333333333333333 [2024-12-02 07:05:20,181 INFO L175 Difference]: Start difference. First operand has 35 places, 28 transitions, 62 flow. Second operand 3 states and 66 transitions. [2024-12-02 07:05:20,182 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 40 transitions, 153 flow [2024-12-02 07:05:20,186 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 07:05:20,188 INFO L231 Difference]: Finished difference. Result has 36 places, 28 transitions, 77 flow [2024-12-02 07:05:20,191 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 07:05:20,195 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 1 predicate places. [2024-12-02 07:05:20,195 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 28 transitions, 77 flow [2024-12-02 07:05:20,195 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 07:05:20,195 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:05:20,195 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:05:20,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 07:05:20,196 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 07:05:20,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:05:20,197 INFO L85 PathProgramCache]: Analyzing trace with hash 804154940, now seen corresponding path program 1 times [2024-12-02 07:05:20,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:05:20,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439996966] [2024-12-02 07:05:20,197 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:05:20,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:05:20,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:05:20,345 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 07:05:20,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:05:20,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439996966] [2024-12-02 07:05:20,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439996966] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:05:20,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:05:20,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 07:05:20,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54498876] [2024-12-02 07:05:20,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:05:20,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 07:05:20,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:05:20,348 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 07:05:20,348 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:05:20,352 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 30 [2024-12-02 07:05:20,352 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 28 transitions, 77 flow. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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 07:05:20,352 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:05:20,352 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 30 [2024-12-02 07:05:20,352 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:05:20,513 INFO L124 PetriNetUnfolderBase]: 161/307 cut-off events. [2024-12-02 07:05:20,513 INFO L125 PetriNetUnfolderBase]: For 41/41 co-relation queries the response was YES. [2024-12-02 07:05:20,515 INFO L83 FinitePrefix]: Finished finitePrefix Result has 700 conditions, 307 events. 161/307 cut-off events. For 41/41 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1428 event pairs, 51 based on Foata normal form. 0/297 useless extension candidates. Maximal degree in co-relation 689. Up to 210 conditions per place. [2024-12-02 07:05:20,517 INFO L140 encePairwiseOnDemand]: 25/30 looper letters, 25 selfloop transitions, 3 changer transitions 0/36 dead transitions. [2024-12-02 07:05:20,517 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 36 transitions, 147 flow [2024-12-02 07:05:20,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 07:05:20,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-02 07:05:20,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 70 transitions. [2024-12-02 07:05:20,519 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334 [2024-12-02 07:05:20,519 INFO L175 Difference]: Start difference. First operand has 36 places, 28 transitions, 77 flow. Second operand 4 states and 70 transitions. [2024-12-02 07:05:20,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 36 transitions, 147 flow [2024-12-02 07:05:20,520 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 07:05:20,521 INFO L231 Difference]: Finished difference. Result has 36 places, 26 transitions, 72 flow [2024-12-02 07:05:20,521 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 07:05:20,522 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 1 predicate places. [2024-12-02 07:05:20,522 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 26 transitions, 72 flow [2024-12-02 07:05:20,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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 07:05:20,522 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:05:20,522 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:05:20,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 07:05:20,523 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 07:05:20,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:05:20,523 INFO L85 PathProgramCache]: Analyzing trace with hash 804154941, now seen corresponding path program 1 times [2024-12-02 07:05:20,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:05:20,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59869378] [2024-12-02 07:05:20,523 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:05:20,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:05:20,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:05:20,647 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 07:05:20,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:05:20,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59869378] [2024-12-02 07:05:20,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59869378] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:05:20,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:05:20,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 07:05:20,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553676439] [2024-12-02 07:05:20,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:05:20,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 07:05:20,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:05:20,649 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 07:05:20,649 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:05:20,654 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 30 [2024-12-02 07:05:20,655 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 26 transitions, 72 flow. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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 07:05:20,655 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:05:20,655 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 30 [2024-12-02 07:05:20,655 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:05:20,786 INFO L124 PetriNetUnfolderBase]: 129/251 cut-off events. [2024-12-02 07:05:20,787 INFO L125 PetriNetUnfolderBase]: For 102/102 co-relation queries the response was YES. [2024-12-02 07:05:20,788 INFO L83 FinitePrefix]: Finished finitePrefix Result has 565 conditions, 251 events. 129/251 cut-off events. For 102/102 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1232 event pairs, 39 based on Foata normal form. 24/265 useless extension candidates. Maximal degree in co-relation 553. Up to 154 conditions per place. [2024-12-02 07:05:20,788 INFO L140 encePairwiseOnDemand]: 25/30 looper letters, 0 selfloop transitions, 0 changer transitions 34/34 dead transitions. [2024-12-02 07:05:20,788 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 34 transitions, 138 flow [2024-12-02 07:05:20,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 07:05:20,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-02 07:05:20,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 68 transitions. [2024-12-02 07:05:20,790 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5666666666666667 [2024-12-02 07:05:20,790 INFO L175 Difference]: Start difference. First operand has 36 places, 26 transitions, 72 flow. Second operand 4 states and 68 transitions. [2024-12-02 07:05:20,790 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 34 transitions, 138 flow [2024-12-02 07:05:20,791 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 07:05:20,791 INFO L231 Difference]: Finished difference. Result has 34 places, 0 transitions, 0 flow [2024-12-02 07:05:20,791 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 07:05:20,792 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, -1 predicate places. [2024-12-02 07:05:20,792 INFO L471 AbstractCegarLoop]: Abstraction has has 34 places, 0 transitions, 0 flow [2024-12-02 07:05:20,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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 07:05:20,795 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2024-12-02 07:05:20,795 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2024-12-02 07:05:20,795 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2024-12-02 07:05:20,796 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2024-12-02 07:05:20,796 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining) [2024-12-02 07:05:20,796 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2024-12-02 07:05:20,796 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2024-12-02 07:05:20,796 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2024-12-02 07:05:20,796 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2024-12-02 07:05:20,796 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2024-12-02 07:05:20,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 07:05:20,797 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-12-02 07:05:20,802 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-12-02 07:05:20,802 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 07:05:20,808 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 07:05:20 BasicIcfg [2024-12-02 07:05:20,808 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 07:05:20,808 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 07:05:20,808 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 07:05:20,809 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 07:05:20,809 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:05:19" (3/4) ... [2024-12-02 07:05:20,811 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-02 07:05:20,813 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-12-02 07:05:20,813 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-12-02 07:05:20,818 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 81 nodes and edges [2024-12-02 07:05:20,818 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2024-12-02 07:05:20,818 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-12-02 07:05:20,818 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-12-02 07:05:20,892 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c26c6b1-f3c6-4d77-855f-1878cf34575a/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 07:05:20,892 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c26c6b1-f3c6-4d77-855f-1878cf34575a/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 07:05:20,892 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 07:05:20,893 INFO L158 Benchmark]: Toolchain (without parser) took 2422.17ms. Allocated memory was 117.4MB in the beginning and 201.3MB in the end (delta: 83.9MB). Free memory was 90.8MB in the beginning and 102.2MB in the end (delta: -11.5MB). Peak memory consumption was 75.6MB. Max. memory is 16.1GB. [2024-12-02 07:05:20,893 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 117.4MB. Free memory is still 73.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:05:20,893 INFO L158 Benchmark]: CACSL2BoogieTranslator took 405.00ms. Allocated memory is still 117.4MB. Free memory was 90.5MB in the beginning and 68.1MB in the end (delta: 22.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-12-02 07:05:20,894 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.05ms. Allocated memory is still 117.4MB. Free memory was 68.1MB in the beginning and 65.8MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:05:20,894 INFO L158 Benchmark]: Boogie Preprocessor took 34.49ms. Allocated memory is still 117.4MB. Free memory was 65.8MB in the beginning and 62.9MB in the end (delta: 2.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 07:05:20,894 INFO L158 Benchmark]: RCFGBuilder took 552.35ms. Allocated memory is still 117.4MB. Free memory was 62.9MB in the beginning and 67.9MB in the end (delta: -5.0MB). Peak memory consumption was 22.0MB. Max. memory is 16.1GB. [2024-12-02 07:05:20,895 INFO L158 Benchmark]: TraceAbstraction took 1310.34ms. Allocated memory was 117.4MB in the beginning and 201.3MB in the end (delta: 83.9MB). Free memory was 67.4MB in the beginning and 107.0MB in the end (delta: -39.6MB). Peak memory consumption was 45.2MB. Max. memory is 16.1GB. [2024-12-02 07:05:20,895 INFO L158 Benchmark]: Witness Printer took 83.69ms. Allocated memory is still 201.3MB. Free memory was 107.0MB in the beginning and 102.2MB in the end (delta: 4.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 07:05:20,897 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 117.4MB. Free memory is still 73.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 405.00ms. Allocated memory is still 117.4MB. Free memory was 90.5MB in the beginning and 68.1MB in the end (delta: 22.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.05ms. Allocated memory is still 117.4MB. Free memory was 68.1MB in the beginning and 65.8MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 34.49ms. Allocated memory is still 117.4MB. Free memory was 65.8MB in the beginning and 62.9MB in the end (delta: 2.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 552.35ms. Allocated memory is still 117.4MB. Free memory was 62.9MB in the beginning and 67.9MB in the end (delta: -5.0MB). Peak memory consumption was 22.0MB. Max. memory is 16.1GB. * TraceAbstraction took 1310.34ms. Allocated memory was 117.4MB in the beginning and 201.3MB in the end (delta: 83.9MB). Free memory was 67.4MB in the beginning and 107.0MB in the end (delta: -39.6MB). Peak memory consumption was 45.2MB. Max. memory is 16.1GB. * Witness Printer took 83.69ms. Allocated memory is still 201.3MB. Free memory was 107.0MB in the beginning and 102.2MB in the end (delta: 4.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 753]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 753]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 787]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 787]: 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: 1.2s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 61 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 55 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, 0.3s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 108 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 07:05:20,914 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c26c6b1-f3c6-4d77-855f-1878cf34575a/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