./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/safe027_power.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73f44e0-1eda-47e5-bbe2-196f5f3c40ef/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73f44e0-1eda-47e5-bbe2-196f5f3c40ef/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_c73f44e0-1eda-47e5-bbe2-196f5f3c40ef/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73f44e0-1eda-47e5-bbe2-196f5f3c40ef/bin/utaipan-verify-sOmjnqqW8E/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/safe027_power.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73f44e0-1eda-47e5-bbe2-196f5f3c40ef/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73f44e0-1eda-47e5-bbe2-196f5f3c40ef/bin/utaipan-verify-sOmjnqqW8E --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a9d301fd24d7dbc3684a100e80ac453023513d8631f488025251adcc1a8646b5 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:41:11,011 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:41:11,076 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73f44e0-1eda-47e5-bbe2-196f5f3c40ef/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2024-11-14 03:41:11,082 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:41:11,082 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:41:11,111 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:41:11,112 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:41:11,112 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:41:11,113 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:41:11,113 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:41:11,114 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:41:11,114 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:41:11,114 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:41:11,114 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 03:41:11,115 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:41:11,115 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:41:11,115 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 03:41:11,115 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 03:41:11,115 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:41:11,115 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 03:41:11,115 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 03:41:11,115 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 03:41:11,116 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-14 03:41:11,117 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-14 03:41:11,117 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:41:11,118 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 03:41:11,118 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 03:41:11,118 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 03:41:11,118 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:41:11,118 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-14 03:41:11,118 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-14 03:41:11,118 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-14 03:41:11,118 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:41:11,119 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 03:41:11,119 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:41:11,119 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 03:41:11,119 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 03:41:11,119 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:41:11,119 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:41:11,119 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:41:11,119 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:41:11,119 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:41:11,120 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:41:11,120 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:41:11,120 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 03:41:11,120 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 03:41:11,120 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:41:11,120 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:41:11,120 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 03:41:11,120 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_c73f44e0-1eda-47e5-bbe2-196f5f3c40ef/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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> a9d301fd24d7dbc3684a100e80ac453023513d8631f488025251adcc1a8646b5 [2024-11-14 03:41:11,512 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:41:11,529 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:41:11,532 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:41:11,534 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:41:11,535 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:41:11,536 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73f44e0-1eda-47e5-bbe2-196f5f3c40ef/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/pthread-wmm/safe027_power.oepc.i Unable to find full path for "g++" [2024-11-14 03:41:13,649 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:41:14,036 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:41:14,040 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73f44e0-1eda-47e5-bbe2-196f5f3c40ef/sv-benchmarks/c/pthread-wmm/safe027_power.oepc.i [2024-11-14 03:41:14,067 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73f44e0-1eda-47e5-bbe2-196f5f3c40ef/bin/utaipan-verify-sOmjnqqW8E/data/d15d24a38/9f9f7c9a3fc14c61ac2a8d9b891850cf/FLAGb07e7fd39 [2024-11-14 03:41:14,088 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73f44e0-1eda-47e5-bbe2-196f5f3c40ef/bin/utaipan-verify-sOmjnqqW8E/data/d15d24a38/9f9f7c9a3fc14c61ac2a8d9b891850cf [2024-11-14 03:41:14,091 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:41:14,093 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:41:14,095 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:41:14,095 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:41:14,101 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:41:14,102 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:41:14" (1/1) ... [2024-11-14 03:41:14,103 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ea21a95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:41:14, skipping insertion in model container [2024-11-14 03:41:14,103 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:41:14" (1/1) ... [2024-11-14 03:41:14,164 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:41:14,606 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:41:14,620 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:41:14,711 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:41:14,750 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:41:14,750 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:41:14 WrapperNode [2024-11-14 03:41:14,752 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:41:14,753 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:41:14,753 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:41:14,753 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:41:14,766 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:41:14" (1/1) ... [2024-11-14 03:41:14,792 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:41:14" (1/1) ... [2024-11-14 03:41:14,835 INFO L138 Inliner]: procedures = 176, calls = 69, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 139 [2024-11-14 03:41:14,835 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:41:14,836 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:41:14,836 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:41:14,836 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:41:14,852 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:41:14" (1/1) ... [2024-11-14 03:41:14,853 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:41:14" (1/1) ... [2024-11-14 03:41:14,862 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:41:14" (1/1) ... [2024-11-14 03:41:14,862 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:41:14" (1/1) ... [2024-11-14 03:41:14,885 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:41:14" (1/1) ... [2024-11-14 03:41:14,887 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:41:14" (1/1) ... [2024-11-14 03:41:14,894 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:41:14" (1/1) ... [2024-11-14 03:41:14,900 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:41:14" (1/1) ... [2024-11-14 03:41:14,908 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:41:14,913 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:41:14,913 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:41:14,913 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:41:14,914 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:41:14" (1/1) ... [2024-11-14 03:41:14,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:41:14,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73f44e0-1eda-47e5-bbe2-196f5f3c40ef/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:41:14,967 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73f44e0-1eda-47e5-bbe2-196f5f3c40ef/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:41:14,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73f44e0-1eda-47e5-bbe2-196f5f3c40ef/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:41:15,003 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-14 03:41:15,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-14 03:41:15,004 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-14 03:41:15,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:41:15,004 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-14 03:41:15,004 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-14 03:41:15,004 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-14 03:41:15,004 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-14 03:41:15,004 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-14 03:41:15,005 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-14 03:41:15,005 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-14 03:41:15,005 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-14 03:41:15,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 03:41:15,005 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-14 03:41:15,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:41:15,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:41:15,007 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 03:41:15,172 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:41:15,174 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:41:15,899 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-14 03:41:15,899 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:41:16,807 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:41:16,808 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-14 03:41:16,809 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:41:16 BoogieIcfgContainer [2024-11-14 03:41:16,809 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:41:16,813 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:41:16,814 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:41:16,819 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:41:16,820 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:41:14" (1/3) ... [2024-11-14 03:41:16,821 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e42d667 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:41:16, skipping insertion in model container [2024-11-14 03:41:16,821 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:41:14" (2/3) ... [2024-11-14 03:41:16,821 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e42d667 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:41:16, skipping insertion in model container [2024-11-14 03:41:16,821 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:41:16" (3/3) ... [2024-11-14 03:41:16,823 INFO L112 eAbstractionObserver]: Analyzing ICFG safe027_power.oepc.i [2024-11-14 03:41:16,845 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:41:16,847 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG safe027_power.oepc.i that has 5 procedures, 89 locations, 1 initial locations, 0 loop locations, and 42 error locations. [2024-11-14 03:41:16,849 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-14 03:41:17,118 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-14 03:41:17,147 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 101 places, 90 transitions, 196 flow [2024-11-14 03:41:40,230 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 665952 states, 652030 states have (on average 4.793052466911032) internal successors, (3125214), 665951 states have internal predecessors, (3125214), 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 03:41:40,315 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:41:40,337 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=None, 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;@4af6ccc6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:41:40,337 INFO L334 AbstractCegarLoop]: Starting to check reachability of 80 error locations. [2024-11-14 03:41:41,368 INFO L276 IsEmpty]: Start isEmpty. Operand has 665952 states, 652030 states have (on average 4.793052466911032) internal successors, (3125214), 665951 states have internal predecessors, (3125214), 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 03:41:41,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-14 03:41:41,373 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:41:41,374 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-14 03:41:41,374 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 77 more)] === [2024-11-14 03:41:41,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:41:41,378 INFO L85 PathProgramCache]: Analyzing trace with hash 26834807, now seen corresponding path program 1 times [2024-11-14 03:41:41,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:41:41,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717969944] [2024-11-14 03:41:41,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:41:41,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:41:41,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:41:41,855 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 03:41:41,857 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:41:41,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717969944] [2024-11-14 03:41:41,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717969944] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:41:41,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:41:41,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-14 03:41:41,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028479475] [2024-11-14 03:41:41,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:41:41,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:41:41,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:41:41,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:41:41,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:41:42,836 INFO L87 Difference]: Start difference. First operand has 665952 states, 652030 states have (on average 4.793052466911032) internal successors, (3125214), 665951 states have internal predecessors, (3125214), 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 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 03:41:57,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:41:57,903 INFO L93 Difference]: Finished difference Result 679416 states and 3231378 transitions. [2024-11-14 03:41:57,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:41:57,906 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 4 [2024-11-14 03:41:57,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:42:00,942 INFO L225 Difference]: With dead ends: 679416 [2024-11-14 03:42:00,942 INFO L226 Difference]: Without dead ends: 62730 [2024-11-14 03:42:01,761 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 03:42:01,764 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 49 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:42:01,765 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 18 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:42:02,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62730 states.