./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-ext/43_NetBSD_sysmon_power_sliced.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_af595145-7d66-4678-95ab-eba2a820123b/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af595145-7d66-4678-95ab-eba2a820123b/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_af595145-7d66-4678-95ab-eba2a820123b/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af595145-7d66-4678-95ab-eba2a820123b/bin/utaipan-verify-sOmjnqqW8E/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-ext/43_NetBSD_sysmon_power_sliced.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af595145-7d66-4678-95ab-eba2a820123b/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_af595145-7d66-4678-95ab-eba2a820123b/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 0cc2344d8bedffb786f66d288e651407abc416f1e22d065ca4595f05e214f2a3 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 23:27:30,890 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 23:27:30,988 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af595145-7d66-4678-95ab-eba2a820123b/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2024-11-13 23:27:30,994 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 23:27:30,995 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 23:27:31,032 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 23:27:31,033 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 23:27:31,033 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 23:27:31,034 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 23:27:31,035 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 23:27:31,036 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-13 23:27:31,036 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-13 23:27:31,036 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-13 23:27:31,036 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-13 23:27:31,037 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-13 23:27:31,037 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-13 23:27:31,038 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-13 23:27:31,038 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-13 23:27:31,038 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-13 23:27:31,038 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-13 23:27:31,038 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-13 23:27:31,038 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-13 23:27:31,039 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 23:27:31,039 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 23:27:31,040 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 23:27:31,040 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 23:27:31,040 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 23:27:31,040 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 23:27:31,041 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 23:27:31,041 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-13 23:27:31,041 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-13 23:27:31,041 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-13 23:27:31,041 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 23:27:31,041 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 23:27:31,041 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 23:27:31,042 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 23:27:31,042 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 23:27:31,043 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 23:27:31,043 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 23:27:31,043 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 23:27:31,043 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 23:27:31,043 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:27:31,043 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 23:27:31,044 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 23:27:31,044 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-13 23:27:31,044 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 23:27:31,044 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 23:27:31,044 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-13 23:27:31,044 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 23:27:31,044 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_af595145-7d66-4678-95ab-eba2a820123b/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 -> 0cc2344d8bedffb786f66d288e651407abc416f1e22d065ca4595f05e214f2a3 [2024-11-13 23:27:31,372 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 23:27:31,380 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 23:27:31,382 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 23:27:31,384 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 23:27:31,384 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 23:27:31,386 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af595145-7d66-4678-95ab-eba2a820123b/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/pthread-ext/43_NetBSD_sysmon_power_sliced.i Unable to find full path for "g++" [2024-11-13 23:27:33,215 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 23:27:33,663 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 23:27:33,667 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af595145-7d66-4678-95ab-eba2a820123b/sv-benchmarks/c/pthread-ext/43_NetBSD_sysmon_power_sliced.i [2024-11-13 23:27:33,690 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af595145-7d66-4678-95ab-eba2a820123b/bin/utaipan-verify-sOmjnqqW8E/data/ee381575e/17dfc7b56e5a4eb59d840404e65be805/FLAG8bd9a2460 [2024-11-13 23:27:33,712 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af595145-7d66-4678-95ab-eba2a820123b/bin/utaipan-verify-sOmjnqqW8E/data/ee381575e/17dfc7b56e5a4eb59d840404e65be805 [2024-11-13 23:27:33,715 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 23:27:33,717 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 23:27:33,718 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 23:27:33,718 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 23:27:33,724 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 23:27:33,725 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:27:33" (1/1) ... [2024-11-13 23:27:33,726 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@190c01ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:27:33, skipping insertion in model container [2024-11-13 23:27:33,726 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:27:33" (1/1) ... [2024-11-13 23:27:33,768 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 23:27:34,264 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:27:34,276 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 23:27:34,368 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:27:34,428 INFO L204 MainTranslator]: Completed translation [2024-11-13 23:27:34,428 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:27:34 WrapperNode [2024-11-13 23:27:34,430 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 23:27:34,431 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 23:27:34,431 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 23:27:34,432 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 23:27:34,441 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:27:34" (1/1) ... [2024-11-13 23:27:34,466 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:27:34" (1/1) ... [2024-11-13 23:27:34,537 INFO L138 Inliner]: procedures = 180, calls = 59, calls flagged for inlining = 54, calls inlined = 79, statements flattened = 476 [2024-11-13 23:27:34,537 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 23:27:34,538 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 23:27:34,538 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 23:27:34,538 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 23:27:34,550 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:27:34" (1/1) ... [2024-11-13 23:27:34,550 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:27:34" (1/1) ... [2024-11-13 23:27:34,561 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:27:34" (1/1) ... [2024-11-13 23:27:34,562 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:27:34" (1/1) ... [2024-11-13 23:27:34,585 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:27:34" (1/1) ... [2024-11-13 23:27:34,600 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:27:34" (1/1) ... [2024-11-13 23:27:34,603 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:27:34" (1/1) ... [2024-11-13 23:27:34,605 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:27:34" (1/1) ... [2024-11-13 23:27:34,610 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 23:27:34,611 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 23:27:34,611 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 23:27:34,612 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 23:27:34,613 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:27:34" (1/1) ... [2024-11-13 23:27:34,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:27:34,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af595145-7d66-4678-95ab-eba2a820123b/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:27:34,663 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af595145-7d66-4678-95ab-eba2a820123b/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-13 23:27:34,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af595145-7d66-4678-95ab-eba2a820123b/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-13 23:27:34,706 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-11-13 23:27:34,707 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-11-13 23:27:34,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 23:27:34,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 23:27:34,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 23:27:34,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 23:27:34,710 WARN L207 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-13 23:27:34,908 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 23:27:34,910 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 23:27:36,087 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 23:27:36,088 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 23:27:36,494 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 23:27:36,495 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-13 23:27:36,495 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:27:36 BoogieIcfgContainer [2024-11-13 23:27:36,495 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 23:27:36,498 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 23:27:36,498 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 23:27:36,504 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 23:27:36,505 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 11:27:33" (1/3) ... [2024-11-13 23:27:36,506 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60dd9279 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:27:36, skipping insertion in model container [2024-11-13 23:27:36,506 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:27:34" (2/3) ... [2024-11-13 23:27:36,506 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60dd9279 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:27:36, skipping insertion in model container [2024-11-13 23:27:36,507 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:27:36" (3/3) ... [2024-11-13 23:27:36,508 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_NetBSD_sysmon_power_sliced.i [2024-11-13 23:27:36,529 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 23:27:36,531 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG 43_NetBSD_sysmon_power_sliced.i that has 2 procedures, 159 locations, 1 initial locations, 3 loop locations, and 12 error locations. [2024-11-13 23:27:36,532 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 23:27:36,688 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-13 23:27:36,736 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 162 places, 223 transitions, 450 flow [2024-11-13 23:27:36,841 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 922 states, 886 states have (on average 2.329571106094808) internal successors, (2064), 921 states have internal predecessors, (2064), 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) [2024-11-13 23:27:36,868 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 23:27:36,884 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;@50f6c258, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 23:27:36,885 INFO L334 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2024-11-13 23:27:36,889 INFO L276 IsEmpty]: Start isEmpty. Operand has 922 states, 886 states have (on average 2.329571106094808) internal successors, (2064), 921 states have internal predecessors, (2064), 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) [2024-11-13 23:27:36,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-13 23:27:36,895 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:27:36,895 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-13 23:27:36,896 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thr1Err1ASSERT_VIOLATIONMEMORY_LEAK, thr1Err2ASSERT_VIOLATIONMEMORY_LEAK, thr1Err3ASSERT_VIOLATIONMEMORY_LEAK, thr1Err5ASSERT_VIOLATIONMEMORY_LEAK (and 20 more)] === [2024-11-13 23:27:36,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:27:36,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1470019, now seen corresponding path program 1 times [2024-11-13 23:27:36,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:27:36,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146531298] [2024-11-13 23:27:36,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:27:36,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:27:36,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:27:37,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:27:37,038 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:27:37,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146531298] [2024-11-13 23:27:37,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146531298] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:27:37,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:27:37,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 23:27:37,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229767684] [2024-11-13 23:27:37,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:27:37,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 23:27:37,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:27:37,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 23:27:37,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 23:27:37,069 INFO L87 Difference]: Start difference. First operand has 922 states, 886 states have (on average 2.329571106094808) internal successors, (2064), 921 states have internal predecessors, (2064), 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 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2024-11-13 23:27:37,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:27:37,273 INFO L93 Difference]: Finished difference Result 1342 states and 3096 transitions. [2024-11-13 23:27:37,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 23:27:37,277 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2024-11-13 23:27:37,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:27:37,293 INFO L225 Difference]: With dead ends: 1342 [2024-11-13 23:27:37,294 INFO L226 Difference]: Without dead ends: 426 [2024-11-13 23:27:37,299 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 23:27:37,302 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:27:37,304 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 94 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 23:27:37,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2024-11-13 23:27:37,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 426. [2024-11-13 23:27:37,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426 states, 415 states have (on average 1.9156626506024097) internal successors, (795), 425 states have internal predecessors, (795), 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) [2024-11-13 23:27:37,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 795 transitions. [2024-11-13 23:27:37,363 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 795 transitions. Word has length 3 [2024-11-13 23:27:37,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:27:37,365 INFO L471 AbstractCegarLoop]: Abstraction has 426 states and 795 transitions. [2024-11-13 23:27:37,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2024-11-13 23:27:37,365 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 795 transitions. [2024-11-13 23:27:37,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-13 23:27:37,366 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:27:37,366 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1] [2024-11-13 23:27:37,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 23:27:37,367 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err1ASSERT_VIOLATIONMEMORY_LEAK, thr1Err2ASSERT_VIOLATIONMEMORY_LEAK, thr1Err3ASSERT_VIOLATIONMEMORY_LEAK, thr1Err5ASSERT_VIOLATIONMEMORY_LEAK (and 20 more)] === [2024-11-13 23:27:37,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:27:37,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1412976500, now seen corresponding path program 1 times [2024-11-13 23:27:37,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:27:37,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104815113] [2024-11-13 23:27:37,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:27:37,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:27:37,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 23:27:37,397 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 23:27:37,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 23:27:37,446 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-13 23:27:37,446 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 23:27:37,448 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 24 remaining) [2024-11-13 23:27:37,450 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONMEMORY_LEAK (22 of 24 remaining) [2024-11-13 23:27:37,451 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONMEMORY_LEAK (21 of 24 remaining) [2024-11-13 23:27:37,451 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONMEMORY_LEAK (20 of 24 remaining) [2024-11-13 23:27:37,452 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONMEMORY_LEAK (19 of 24 remaining) [2024-11-13 23:27:37,452 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONMEMORY_LEAK (18 of 24 remaining) [2024-11-13 23:27:37,452 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONMEMORY_LEAK (17 of 24 remaining) [2024-11-13 23:27:37,453 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (16 of 24 remaining) [2024-11-13 23:27:37,453 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONMEMORY_LEAK (15 of 24 remaining) [2024-11-13 23:27:37,453 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONMEMORY_LEAK (14 of 24 remaining) [2024-11-13 23:27:37,453 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONMEMORY_LEAK (13 of 24 remaining) [2024-11-13 23:27:37,453 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONMEMORY_LEAK (12 of 24 remaining) [2024-11-13 23:27:37,453 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (11 of 24 remaining) [2024-11-13 23:27:37,453 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONMEMORY_LEAK (10 of 24 remaining) [2024-11-13 23:27:37,454 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONMEMORY_LEAK (9 of 24 remaining) [2024-11-13 23:27:37,454 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONMEMORY_LEAK (8 of 24 remaining) [2024-11-13 23:27:37,454 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONMEMORY_LEAK (7 of 24 remaining) [2024-11-13 23:27:37,454 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONMEMORY_LEAK (6 of 24 remaining) [2024-11-13 23:27:37,454 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONMEMORY_LEAK (5 of 24 remaining) [2024-11-13 23:27:37,454 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (4 of 24 remaining) [2024-11-13 23:27:37,454 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONMEMORY_LEAK (3 of 24 remaining) [2024-11-13 23:27:37,454 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONMEMORY_LEAK (2 of 24 remaining) [2024-11-13 23:27:37,454 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONMEMORY_LEAK (1 of 24 remaining) [2024-11-13 23:27:37,454 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONMEMORY_LEAK (0 of 24 remaining) [2024-11-13 23:27:37,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 23:27:37,460 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-13 23:27:37,462 WARN L247 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-13 23:27:37,463 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-13 23:27:37,548 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-13 23:27:37,556 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 317 places, 440 transitions, 890 flow [2024-11-13 23:27:42,703 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 141222 states, 140767 states have (on average 3.661838357001286) internal successors, (515466), 141221 states have internal predecessors, (515466), 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) [2024-11-13 23:27:42,708 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 23:27:42,710 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;@50f6c258, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 23:27:42,710 INFO L334 AbstractCegarLoop]: Starting to check reachability of 35 error locations. [2024-11-13 23:27:43,234 INFO L276 IsEmpty]: Start isEmpty. Operand has 141222 states, 140767 states have (on average 3.661838357001286) internal successors, (515466), 141221 states have internal predecessors, (515466), 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) [2024-11-13 23:27:43,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-13 23:27:43,234 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:27:43,234 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-13 23:27:43,235 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thr1Err1ASSERT_VIOLATIONMEMORY_LEAK, thr1Err2ASSERT_VIOLATIONMEMORY_LEAK, thr1Err3ASSERT_VIOLATIONMEMORY_LEAK, thr1Err5ASSERT_VIOLATIONMEMORY_LEAK (and 31 more)] === [2024-11-13 23:27:43,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:27:43,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1906939, now seen corresponding path program 1 times [2024-11-13 23:27:43,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:27:43,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654470424] [2024-11-13 23:27:43,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:27:43,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:27:43,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:27:43,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:27:43,319 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:27:43,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654470424] [2024-11-13 23:27:43,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654470424] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:27:43,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:27:43,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 23:27:43,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563140333] [2024-11-13 23:27:43,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:27:43,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 23:27:43,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:27:43,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 23:27:43,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 23:27:43,561 INFO L87 Difference]: Start difference. First operand has 141222 states, 140767 states have (on average 3.661838357001286) internal successors, (515466), 141221 states have internal predecessors, (515466), 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 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2024-11-13 23:27:47,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:27:47,778 INFO L93 Difference]: Finished difference Result 201142 states and 749358 transitions. [2024-11-13 23:27:47,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 23:27:47,779 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2024-11-13 23:27:47,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:27:48,494 INFO L225 Difference]: With dead ends: 201142 [2024-11-13 23:27:48,495 INFO L226 Difference]: Without dead ends: 59928 [2024-11-13 23:27:48,749 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 23:27:48,751 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 23:27:48,751 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 187 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 23:27:48,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59928 states. [2024-11-13 23:27:51,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59928 to 59928. [2024-11-13 23:27:51,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59928 states, 59807 states have (on average 3.080024077449128) internal successors, (184207), 59927 states have internal predecessors, (184207), 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) [2024-11-13 23:27:51,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59928 states to 59928 states and 184207 transitions. [2024-11-13 23:27:51,779 INFO L78 Accepts]: Start accepts. Automaton has 59928 states and 184207 transitions. Word has length 3 [2024-11-13 23:27:51,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:27:51,779 INFO L471 AbstractCegarLoop]: Abstraction has 59928 states and 184207 transitions. [2024-11-13 23:27:51,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2024-11-13 23:27:51,780 INFO L276 IsEmpty]: Start isEmpty. Operand 59928 states and 184207 transitions. [2024-11-13 23:27:51,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-13 23:27:51,780 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:27:51,781 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1] [2024-11-13 23:27:51,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 23:27:51,782 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err1ASSERT_VIOLATIONMEMORY_LEAK, thr1Err2ASSERT_VIOLATIONMEMORY_LEAK, thr1Err3ASSERT_VIOLATIONMEMORY_LEAK, thr1Err5ASSERT_VIOLATIONMEMORY_LEAK (and 31 more)] === [2024-11-13 23:27:51,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:27:51,782 INFO L85 PathProgramCache]: Analyzing trace with hash 651900778, now seen corresponding path program 1 times [2024-11-13 23:27:51,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:27:51,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680636392] [2024-11-13 23:27:51,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:27:51,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:27:51,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 23:27:51,814 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 23:27:51,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 23:27:51,837 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-13 23:27:51,841 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 23:27:51,841 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (34 of 35 remaining) [2024-11-13 23:27:51,841 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONMEMORY_LEAK (33 of 35 remaining) [2024-11-13 23:27:51,842 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONMEMORY_LEAK (32 of 35 remaining) [2024-11-13 23:27:51,842 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONMEMORY_LEAK (31 of 35 remaining) [2024-11-13 23:27:51,842 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONMEMORY_LEAK (30 of 35 remaining) [2024-11-13 23:27:51,842 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONMEMORY_LEAK (29 of 35 remaining) [2024-11-13 23:27:51,842 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONMEMORY_LEAK (28 of 35 remaining) [2024-11-13 23:27:51,842 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (27 of 35 remaining) [2024-11-13 23:27:51,842 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONMEMORY_LEAK (26 of 35 remaining) [2024-11-13 23:27:51,842 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONMEMORY_LEAK (25 of 35 remaining) [2024-11-13 23:27:51,843 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONMEMORY_LEAK (24 of 35 remaining) [2024-11-13 23:27:51,843 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONMEMORY_LEAK (23 of 35 remaining) [2024-11-13 23:27:51,847 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (22 of 35 remaining) [2024-11-13 23:27:51,847 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONMEMORY_LEAK (21 of 35 remaining) [2024-11-13 23:27:51,847 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONMEMORY_LEAK (20 of 35 remaining) [2024-11-13 23:27:51,847 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONMEMORY_LEAK (19 of 35 remaining) [2024-11-13 23:27:51,847 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONMEMORY_LEAK (18 of 35 remaining) [2024-11-13 23:27:51,847 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONMEMORY_LEAK (17 of 35 remaining) [2024-11-13 23:27:51,847 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONMEMORY_LEAK (16 of 35 remaining) [2024-11-13 23:27:51,847 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (15 of 35 remaining) [2024-11-13 23:27:51,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONMEMORY_LEAK (14 of 35 remaining) [2024-11-13 23:27:51,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONMEMORY_LEAK (13 of 35 remaining) [2024-11-13 23:27:51,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONMEMORY_LEAK (12 of 35 remaining) [2024-11-13 23:27:51,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONMEMORY_LEAK (11 of 35 remaining) [2024-11-13 23:27:51,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONMEMORY_LEAK (10 of 35 remaining) [2024-11-13 23:27:51,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONMEMORY_LEAK (9 of 35 remaining) [2024-11-13 23:27:51,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONMEMORY_LEAK (8 of 35 remaining) [2024-11-13 23:27:51,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONMEMORY_LEAK (7 of 35 remaining) [2024-11-13 23:27:51,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONMEMORY_LEAK (6 of 35 remaining) [2024-11-13 23:27:51,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONMEMORY_LEAK (5 of 35 remaining) [2024-11-13 23:27:51,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (4 of 35 remaining) [2024-11-13 23:27:51,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONMEMORY_LEAK (3 of 35 remaining) [2024-11-13 23:27:51,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONMEMORY_LEAK (2 of 35 remaining) [2024-11-13 23:27:51,849 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONMEMORY_LEAK (1 of 35 remaining) [2024-11-13 23:27:51,849 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONMEMORY_LEAK (0 of 35 remaining) [2024-11-13 23:27:51,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 23:27:51,850 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-13 23:27:51,850 WARN L247 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-13 23:27:51,850 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-13 23:27:51,963 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-13 23:27:51,976 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 472 places, 657 transitions, 1332 flow