./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe009_power.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d4ab129-5480-4cc7-a71b-ae4597b76c8d/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d4ab129-5480-4cc7-a71b-ae4597b76c8d/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d4ab129-5480-4cc7-a71b-ae4597b76c8d/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d4ab129-5480-4cc7-a71b-ae4597b76c8d/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe009_power.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d4ab129-5480-4cc7-a71b-ae4597b76c8d/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d4ab129-5480-4cc7-a71b-ae4597b76c8d/bin/utaipan-verify-sOmjnqqW8E --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash be536b3b382c4e63adbabc11deb06983f35dbd290b78e0d42f1a068990873986 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:02:58,311 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:02:58,413 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d4ab129-5480-4cc7-a71b-ae4597b76c8d/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-14 05:02:58,419 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:02:58,420 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:02:58,449 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:02:58,450 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:02:58,451 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:02:58,451 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:02:58,452 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:02:58,453 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:02:58,453 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:02:58,453 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:02:58,453 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 05:02:58,454 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:02:58,454 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:02:58,454 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 05:02:58,455 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 05:02:58,455 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:02:58,455 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 05:02:58,455 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 05:02:58,455 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 05:02:58,456 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:02:58,456 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:02:58,456 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 05:02:58,456 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 05:02:58,457 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 05:02:58,457 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:02:58,457 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:02:58,458 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:02:58,458 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:02:58,458 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:02:58,458 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-14 05:02:58,458 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 05:02:58,458 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 05:02:58,458 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:02:58,459 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:02:58,459 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:02:58,459 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:02:58,459 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:02:58,460 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:02:58,460 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:02:58,460 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:02:58,461 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:02:58,461 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 05:02:58,461 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 05:02:58,461 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:02:58,461 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:02:58,461 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 05:02:58,461 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_9d4ab129-5480-4cc7-a71b-ae4597b76c8d/bin/utaipan-verify-sOmjnqqW8E 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 -> Taipan 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 -> be536b3b382c4e63adbabc11deb06983f35dbd290b78e0d42f1a068990873986 [2024-11-14 05:02:58,849 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:02:58,859 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:02:58,862 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:02:58,864 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:02:58,864 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:02:58,866 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d4ab129-5480-4cc7-a71b-ae4597b76c8d/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/pthread-wmm/safe009_power.opt.i Unable to find full path for "g++" [2024-11-14 05:03:01,064 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:03:01,475 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:03:01,476 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d4ab129-5480-4cc7-a71b-ae4597b76c8d/sv-benchmarks/c/pthread-wmm/safe009_power.opt.i [2024-11-14 05:03:01,493 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d4ab129-5480-4cc7-a71b-ae4597b76c8d/bin/utaipan-verify-sOmjnqqW8E/data/29ca38f89/ae0040e027d543c58efdf2789673c384/FLAGe6fb507d0 [2024-11-14 05:03:01,530 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d4ab129-5480-4cc7-a71b-ae4597b76c8d/bin/utaipan-verify-sOmjnqqW8E/data/29ca38f89/ae0040e027d543c58efdf2789673c384 [2024-11-14 05:03:01,533 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:03:01,535 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:03:01,539 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:03:01,539 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:03:01,549 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:03:01,550 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:03:01" (1/1) ... [2024-11-14 05:03:01,551 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d4ab7c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:03:01, skipping insertion in model container [2024-11-14 05:03:01,551 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:03:01" (1/1) ... [2024-11-14 05:03:01,613 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:03:02,022 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:03:02,035 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:03:02,141 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:03:02,200 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:03:02,201 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:03:02 WrapperNode [2024-11-14 05:03:02,202 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:03:02,203 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:03:02,203 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:03:02,203 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:03:02,212 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:03:02" (1/1) ... [2024-11-14 05:03:02,244 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:03:02" (1/1) ... [2024-11-14 05:03:02,290 INFO L138 Inliner]: procedures = 175, calls = 60, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 174 [2024-11-14 05:03:02,291 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:03:02,291 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:03:02,291 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:03:02,292 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:03:02,300 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:03:02" (1/1) ... [2024-11-14 05:03:02,300 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:03:02" (1/1) ... [2024-11-14 05:03:02,311 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:03:02" (1/1) ... [2024-11-14 05:03:02,311 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:03:02" (1/1) ... [2024-11-14 05:03:02,328 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:03:02" (1/1) ... [2024-11-14 05:03:02,332 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:03:02" (1/1) ... [2024-11-14 05:03:02,335 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:03:02" (1/1) ... [2024-11-14 05:03:02,337 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:03:02" (1/1) ... [2024-11-14 05:03:02,341 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:03:02,341 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:03:02,342 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:03:02,342 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:03:02,343 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:03:02" (1/1) ... [2024-11-14 05:03:02,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:03:02,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d4ab129-5480-4cc7-a71b-ae4597b76c8d/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:03:02,393 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d4ab129-5480-4cc7-a71b-ae4597b76c8d/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:03:02,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d4ab129-5480-4cc7-a71b-ae4597b76c8d/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:03:02,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-14 05:03:02,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-14 05:03:02,434 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-14 05:03:02,435 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:03:02,435 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-14 05:03:02,435 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-14 05:03:02,435 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-14 05:03:02,436 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-14 05:03:02,436 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-14 05:03:02,436 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-14 05:03:02,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 05:03:02,436 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-14 05:03:02,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:03:02,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:03:02,438 WARN L207 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-14 05:03:02,700 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:03:02,702 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:03:03,413 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-14 05:03:03,415 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:03:03,995 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:03:03,995 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-14 05:03:03,995 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:03:03 BoogieIcfgContainer [2024-11-14 05:03:03,996 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:03:04,000 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:03:04,000 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:03:04,007 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:03:04,007 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:03:01" (1/3) ... [2024-11-14 05:03:04,007 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40e0eaaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:03:04, skipping insertion in model container [2024-11-14 05:03:04,007 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:03:02" (2/3) ... [2024-11-14 05:03:04,008 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40e0eaaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:03:04, skipping insertion in model container [2024-11-14 05:03:04,008 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:03:03" (3/3) ... [2024-11-14 05:03:04,010 INFO L112 eAbstractionObserver]: Analyzing ICFG safe009_power.opt.i [2024-11-14 05:03:04,029 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:03:04,031 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG safe009_power.opt.i that has 4 procedures, 39 locations, 1 initial locations, 0 loop locations, and 6 error locations. [2024-11-14 05:03:04,031 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-14 05:03:04,160 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-14 05:03:04,204 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 48 places, 38 transitions, 88 flow [2024-11-14 05:03:04,639 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 4662 states, 4636 states have (on average 3.4924503882657465) internal successors, (16191), 4661 states have internal predecessors, (16191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:03:04,674 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:03:04,687 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=FINITE_AUTOMATA, 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;@6941fdc6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:03:04,687 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2024-11-14 05:03:04,708 INFO L276 IsEmpty]: Start isEmpty. Operand has 4662 states, 4636 states have (on average 3.4924503882657465) internal successors, (16191), 4661 states have internal predecessors, (16191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:03:04,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-14 05:03:04,716 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:03:04,716 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:03:04,717 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-14 05:03:04,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:03:04,725 INFO L85 PathProgramCache]: Analyzing trace with hash 257746302, now seen corresponding path program 1 times [2024-11-14 05:03:04,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:03:04,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886085464] [2024-11-14 05:03:04,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:03:04,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:03:04,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:03:05,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:03:05,232 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:03:05,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886085464] [2024-11-14 05:03:05,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886085464] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:03:05,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:03:05,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-14 05:03:05,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193060019] [2024-11-14 05:03:05,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:03:05,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:03:05,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:03:05,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:03:05,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:03:05,280 INFO L87 Difference]: Start difference. First operand has 4662 states, 4636 states have (on average 3.4924503882657465) internal successors, (16191), 4661 states have internal predecessors, (16191), 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) Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:03:05,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:03:05,605 INFO L93 Difference]: Finished difference Result 5798 states and 18939 transitions. [2024-11-14 05:03:05,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:03:05,608 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) Word has length 7 [2024-11-14 05:03:05,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:03:05,670 INFO L225 Difference]: With dead ends: 5798 [2024-11-14 05:03:05,670 INFO L226 Difference]: Without dead ends: 3252 [2024-11-14 05:03:05,684 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:03:05,688 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 17 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:03:05,689 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 12 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 05:03:05,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3252 states. [2024-11-14 05:03:05,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3252 to 3252. [2024-11-14 05:03:05,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3252 states, 3234 states have (on average 3.33982683982684) internal successors, (10801), 3251 states have internal predecessors, (10801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:03:06,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3252 states to 3252 states and 10801 transitions. [2024-11-14 05:03:06,022 INFO L78 Accepts]: Start accepts. Automaton has 3252 states and 10801 transitions. Word has length 7 [2024-11-14 05:03:06,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:03:06,023 INFO L471 AbstractCegarLoop]: Abstraction has 3252 states and 10801 transitions. [2024-11-14 05:03:06,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:03:06,025 INFO L276 IsEmpty]: Start isEmpty. Operand 3252 states and 10801 transitions. [2024-11-14 05:03:06,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-14 05:03:06,035 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:03:06,036 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:03:06,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 05:03:06,037 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-14 05:03:06,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:03:06,037 INFO L85 PathProgramCache]: Analyzing trace with hash -923277295, now seen corresponding path program 1 times [2024-11-14 05:03:06,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:03:06,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651196978] [2024-11-14 05:03:06,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:03:06,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:03:06,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:03:06,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:03:06,540 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:03:06,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651196978] [2024-11-14 05:03:06,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651196978] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:03:06,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:03:06,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:03:06,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647780838] [2024-11-14 05:03:06,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:03:06,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:03:06,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:03:06,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:03:06,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:03:06,546 INFO L87 Difference]: Start difference. First operand 3252 states and 10801 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:03:06,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:03:06,811 INFO L93 Difference]: Finished difference Result 3420 states and 11113 transitions. [2024-11-14 05:03:06,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:03:06,812 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) Word has length 14 [2024-11-14 05:03:06,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:03:06,838 INFO L225 Difference]: With dead ends: 3420 [2024-11-14 05:03:06,839 INFO L226 Difference]: Without dead ends: 2810 [2024-11-14 05:03:06,841 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:03:06,845 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 49 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:03:06,845 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 18 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 05:03:06,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2810 states. [2024-11-14 05:03:06,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2810 to 2726. [2024-11-14 05:03:06,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2726 states, 2717 states have (on average 3.327935222672065) internal successors, (9042), 2725 states have internal predecessors, (9042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:03:06,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2726 states to 2726 states and 9042 transitions. [2024-11-14 05:03:06,971 INFO L78 Accepts]: Start accepts. Automaton has 2726 states and 9042 transitions. Word has length 14 [2024-11-14 05:03:06,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:03:06,972 INFO L471 AbstractCegarLoop]: Abstraction has 2726 states and 9042 transitions. [2024-11-14 05:03:06,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:03:06,973 INFO L276 IsEmpty]: Start isEmpty. Operand 2726 states and 9042 transitions. [2024-11-14 05:03:06,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-14 05:03:06,977 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:03:06,978 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:03:06,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 05:03:06,978 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-14 05:03:06,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:03:06,979 INFO L85 PathProgramCache]: Analyzing trace with hash -923277296, now seen corresponding path program 1 times [2024-11-14 05:03:06,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:03:06,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098885542] [2024-11-14 05:03:06,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:03:06,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:03:07,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:03:07,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:03:07,251 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:03:07,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098885542] [2024-11-14 05:03:07,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098885542] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:03:07,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:03:07,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:03:07,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206670024] [2024-11-14 05:03:07,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:03:07,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:03:07,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:03:07,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:03:07,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:03:07,253 INFO L87 Difference]: Start difference. First operand 2726 states and 9042 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:03:07,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:03:07,493 INFO L93 Difference]: Finished difference Result 2726 states and 9042 transitions. [2024-11-14 05:03:07,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:03:07,494 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) Word has length 14 [2024-11-14 05:03:07,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:03:07,518 INFO L225 Difference]: With dead ends: 2726 [2024-11-14 05:03:07,518 INFO L226 Difference]: Without dead ends: 2200 [2024-11-14 05:03:07,520 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:03:07,523 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 38 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:03:07,524 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 24 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 05:03:07,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2200 states. [2024-11-14 05:03:07,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2200 to 2200. [2024-11-14 05:03:07,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2200 states, 2197 states have (on average 3.334091943559399) internal successors, (7325), 2199 states have internal predecessors, (7325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:03:07,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2200 states to 2200 states and 7325 transitions. [2024-11-14 05:03:07,629 INFO L78 Accepts]: Start accepts. Automaton has 2200 states and 7325 transitions. Word has length 14 [2024-11-14 05:03:07,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:03:07,629 INFO L471 AbstractCegarLoop]: Abstraction has 2200 states and 7325 transitions. [2024-11-14 05:03:07,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:03:07,631 INFO L276 IsEmpty]: Start isEmpty. Operand 2200 states and 7325 transitions. [2024-11-14 05:03:07,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-14 05:03:07,642 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:03:07,642 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:03:07,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 05:03:07,643 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-14 05:03:07,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:03:07,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1200676955, now seen corresponding path program 1 times [2024-11-14 05:03:07,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:03:07,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660792867] [2024-11-14 05:03:07,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:03:07,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:03:07,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:03:07,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:03:07,967 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:03:07,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660792867] [2024-11-14 05:03:07,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660792867] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:03:07,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:03:07,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:03:07,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303573921] [2024-11-14 05:03:07,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:03:07,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:03:07,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:03:07,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:03:07,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:03:07,969 INFO L87 Difference]: Start difference. First operand 2200 states and 7325 transitions. Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:03:08,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:03:08,215 INFO L93 Difference]: Finished difference Result 2200 states and 7325 transitions. [2024-11-14 05:03:08,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:03:08,216 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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) Word has length 20 [2024-11-14 05:03:08,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:03:08,226 INFO L225 Difference]: With dead ends: 2200 [2024-11-14 05:03:08,230 INFO L226 Difference]: Without dead ends: 0 [2024-11-14 05:03:08,234 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:03:08,235 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 63 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:03:08,236 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 18 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 05:03:08,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-14 05:03:08,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-14 05:03:08,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:03:08,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-14 05:03:08,242 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2024-11-14 05:03:08,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:03:08,242 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-14 05:03:08,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:03:08,243 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-14 05:03:08,243 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-14 05:03:08,248 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2024-11-14 05:03:08,249 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2024-11-14 05:03:08,250 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2024-11-14 05:03:08,250 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2024-11-14 05:03:08,250 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2024-11-14 05:03:08,250 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2024-11-14 05:03:08,250 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2024-11-14 05:03:08,251 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2024-11-14 05:03:08,251 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2024-11-14 05:03:08,251 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2024-11-14 05:03:08,251 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2024-11-14 05:03:08,251 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2024-11-14 05:03:08,252 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2024-11-14 05:03:08,253 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2024-11-14 05:03:08,254 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2024-11-14 05:03:08,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-14 05:03:08,259 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-14 05:03:08,267 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-14 05:03:08,267 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 05:03:08,274 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 05:03:08 BasicIcfg [2024-11-14 05:03:08,275 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 05:03:08,276 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 05:03:08,276 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 05:03:08,277 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 05:03:08,277 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:03:03" (3/4) ... [2024-11-14 05:03:08,280 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-14 05:03:08,283 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-11-14 05:03:08,284 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-11-14 05:03:08,284 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2024-11-14 05:03:08,292 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 70 nodes and edges [2024-11-14 05:03:08,293 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-14 05:03:08,293 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-14 05:03:08,294 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-14 05:03:08,406 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d4ab129-5480-4cc7-a71b-ae4597b76c8d/bin/utaipan-verify-sOmjnqqW8E/witness.graphml [2024-11-14 05:03:08,406 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d4ab129-5480-4cc7-a71b-ae4597b76c8d/bin/utaipan-verify-sOmjnqqW8E/witness.yml [2024-11-14 05:03:08,406 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 05:03:08,408 INFO L158 Benchmark]: Toolchain (without parser) took 6872.98ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 91.8MB in the beginning and 232.0MB in the end (delta: -140.2MB). Peak memory consumption was 92.9MB. Max. memory is 16.1GB. [2024-11-14 05:03:08,408 INFO L158 Benchmark]: CDTParser took 0.47ms. Allocated memory is still 167.8MB. Free memory is still 104.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:03:08,410 INFO L158 Benchmark]: CACSL2BoogieTranslator took 663.62ms. Allocated memory is still 117.4MB. Free memory was 91.4MB in the beginning and 67.1MB in the end (delta: 24.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-14 05:03:08,411 INFO L158 Benchmark]: Boogie Procedure Inliner took 88.01ms. Allocated memory is still 117.4MB. Free memory was 67.1MB in the beginning and 64.8MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:03:08,411 INFO L158 Benchmark]: Boogie Preprocessor took 49.49ms. Allocated memory is still 117.4MB. Free memory was 64.8MB in the beginning and 62.7MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 05:03:08,411 INFO L158 Benchmark]: RCFGBuilder took 1654.87ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 62.7MB in the beginning and 294.7MB in the end (delta: -231.9MB). Peak memory consumption was 38.0MB. Max. memory is 16.1GB. [2024-11-14 05:03:08,412 INFO L158 Benchmark]: TraceAbstraction took 4275.37ms. Allocated memory is still 352.3MB. Free memory was 294.0MB in the beginning and 235.3MB in the end (delta: 58.7MB). Peak memory consumption was 60.1MB. Max. memory is 16.1GB. [2024-11-14 05:03:08,412 INFO L158 Benchmark]: Witness Printer took 130.43ms. Allocated memory is still 352.3MB. Free memory was 235.3MB in the beginning and 232.0MB in the end (delta: 3.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:03:08,414 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47ms. Allocated memory is still 167.8MB. Free memory is still 104.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 663.62ms. Allocated memory is still 117.4MB. Free memory was 91.4MB in the beginning and 67.1MB in the end (delta: 24.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 88.01ms. Allocated memory is still 117.4MB. Free memory was 67.1MB in the beginning and 64.8MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 49.49ms. Allocated memory is still 117.4MB. Free memory was 64.8MB in the beginning and 62.7MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1654.87ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 62.7MB in the beginning and 294.7MB in the end (delta: -231.9MB). Peak memory consumption was 38.0MB. Max. memory is 16.1GB. * TraceAbstraction took 4275.37ms. Allocated memory is still 352.3MB. Free memory was 294.0MB in the beginning and 235.3MB in the end (delta: 58.7MB). Peak memory consumption was 60.1MB. Max. memory is 16.1GB. * Witness Printer took 130.43ms. Allocated memory is still 352.3MB. Free memory was 235.3MB in the beginning and 232.0MB in the end (delta: 3.3MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 780]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 780]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 816]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 816]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 833]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 833]: 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 7 procedures, 68 locations, 15 error locations. Started 1 CEGAR loops. OverallTime: 4.0s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 167 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 167 mSDsluCounter, 72 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 42 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 282 IncrementalHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 30 mSDtfsCounter, 282 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4662occurred in iteration=0, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 4 MinimizatonAttempts, 84 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 51 ConstructedInterpolants, 0 QuantifiedInterpolants, 153 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-14 05:03:08,465 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d4ab129-5480-4cc7-a71b-ae4597b76c8d/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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