./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-ext/28_buggy_simple_loop1_vf.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_16cb1f75-004f-412f-a847-33da7457d285/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16cb1f75-004f-412f-a847-33da7457d285/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_16cb1f75-004f-412f-a847-33da7457d285/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16cb1f75-004f-412f-a847-33da7457d285/bin/utaipan-verify-sOmjnqqW8E/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-ext/28_buggy_simple_loop1_vf.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16cb1f75-004f-412f-a847-33da7457d285/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_16cb1f75-004f-412f-a847-33da7457d285/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 f7757e6e73d857d492b029f13f86cb5d550622238e5a2b483c58ab6fc3ffdeb1 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:53:15,681 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:53:15,767 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16cb1f75-004f-412f-a847-33da7457d285/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2024-11-14 03:53:15,773 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:53:15,773 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:53:15,801 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:53:15,802 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:53:15,802 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:53:15,803 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:53:15,803 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:53:15,803 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:53:15,803 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:53:15,803 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:53:15,803 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 03:53:15,804 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:53:15,804 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:53:15,804 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 03:53:15,804 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 03:53:15,804 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:53:15,805 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 03:53:15,805 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 03:53:15,805 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 03:53:15,805 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-14 03:53:15,806 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-14 03:53:15,806 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:53:15,806 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 03:53:15,806 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 03:53:15,806 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 03:53:15,807 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:53:15,807 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-14 03:53:15,807 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-14 03:53:15,807 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-14 03:53:15,807 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:53:15,807 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 03:53:15,808 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:53:15,808 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 03:53:15,808 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 03:53:15,808 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:53:15,808 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:53:15,808 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:53:15,808 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:53:15,809 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:53:15,809 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:53:15,809 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:53:15,809 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 03:53:15,809 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 03:53:15,809 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:53:15,809 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:53:15,810 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 03:53:15,810 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_16cb1f75-004f-412f-a847-33da7457d285/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 -> f7757e6e73d857d492b029f13f86cb5d550622238e5a2b483c58ab6fc3ffdeb1 [2024-11-14 03:53:16,158 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:53:16,171 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:53:16,174 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:53:16,177 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:53:16,178 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:53:16,180 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16cb1f75-004f-412f-a847-33da7457d285/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/pthread-ext/28_buggy_simple_loop1_vf.i Unable to find full path for "g++" [2024-11-14 03:53:18,177 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:53:18,547 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:53:18,549 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16cb1f75-004f-412f-a847-33da7457d285/sv-benchmarks/c/pthread-ext/28_buggy_simple_loop1_vf.i [2024-11-14 03:53:18,564 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16cb1f75-004f-412f-a847-33da7457d285/bin/utaipan-verify-sOmjnqqW8E/data/1e61107cc/2a0455df0ef44e2596f244c86b98289b/FLAG4470d1d11 [2024-11-14 03:53:18,581 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16cb1f75-004f-412f-a847-33da7457d285/bin/utaipan-verify-sOmjnqqW8E/data/1e61107cc/2a0455df0ef44e2596f244c86b98289b [2024-11-14 03:53:18,583 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:53:18,585 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:53:18,586 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:53:18,586 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:53:18,591 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:53:18,592 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:53:18" (1/1) ... [2024-11-14 03:53:18,594 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8e6c16c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:18, skipping insertion in model container [2024-11-14 03:53:18,594 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:53:18" (1/1) ... [2024-11-14 03:53:18,639 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:53:18,967 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:53:18,977 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:53:19,017 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:53:19,052 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:53:19,053 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:19 WrapperNode [2024-11-14 03:53:19,053 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:53:19,054 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:53:19,054 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:53:19,054 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:53:19,061 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:19" (1/1) ... [2024-11-14 03:53:19,071 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:19" (1/1) ... [2024-11-14 03:53:19,094 INFO L138 Inliner]: procedures = 166, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 62 [2024-11-14 03:53:19,094 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:53:19,095 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:53:19,095 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:53:19,095 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:53:19,101 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:19" (1/1) ... [2024-11-14 03:53:19,102 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:19" (1/1) ... [2024-11-14 03:53:19,104 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:19" (1/1) ... [2024-11-14 03:53:19,104 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:19" (1/1) ... [2024-11-14 03:53:19,114 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:19" (1/1) ... [2024-11-14 03:53:19,121 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:19" (1/1) ... [2024-11-14 03:53:19,122 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:19" (1/1) ... [2024-11-14 03:53:19,123 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:19" (1/1) ... [2024-11-14 03:53:19,129 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:53:19,129 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:53:19,130 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:53:19,130 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:53:19,130 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:19" (1/1) ... [2024-11-14 03:53:19,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:53:19,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16cb1f75-004f-412f-a847-33da7457d285/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:53:19,172 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16cb1f75-004f-412f-a847-33da7457d285/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:53:19,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16cb1f75-004f-412f-a847-33da7457d285/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:53:19,203 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-11-14 03:53:19,203 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-11-14 03:53:19,204 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:53:19,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 03:53:19,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:53:19,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:53:19,206 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 03:53:19,356 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:53:19,357 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:53:19,586 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-14 03:53:19,586 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:53:19,725 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:53:19,725 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-14 03:53:19,726 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:53:19 BoogieIcfgContainer [2024-11-14 03:53:19,726 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:53:19,730 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:53:19,730 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:53:19,737 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:53:19,737 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:53:18" (1/3) ... [2024-11-14 03:53:19,738 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c952cf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:53:19, skipping insertion in model container [2024-11-14 03:53:19,738 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:19" (2/3) ... [2024-11-14 03:53:19,739 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c952cf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:53:19, skipping insertion in model container [2024-11-14 03:53:19,739 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:53:19" (3/3) ... [2024-11-14 03:53:19,740 INFO L112 eAbstractionObserver]: Analyzing ICFG 28_buggy_simple_loop1_vf.i [2024-11-14 03:53:19,763 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:53:19,765 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG 28_buggy_simple_loop1_vf.i that has 2 procedures, 20 locations, 1 initial locations, 4 loop locations, and 2 error locations. [2024-11-14 03:53:19,766 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-14 03:53:19,861 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-14 03:53:19,906 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 23 places, 26 transitions, 56 flow [2024-11-14 03:53:19,940 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 93 states, 87 states have (on average 2.310344827586207) internal successors, (201), 92 states have internal predecessors, (201), 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 03:53:19,972 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:53:19,988 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;@2d6ff505, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:53:19,988 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-14 03:53:19,990 INFO L276 IsEmpty]: Start isEmpty. Operand has 93 states, 87 states have (on average 2.310344827586207) internal successors, (201), 92 states have internal predecessors, (201), 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 03:53:19,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-14 03:53:19,999 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:53:20,000 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-14 03:53:20,000 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thr1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-14 03:53:20,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:53:20,006 INFO L85 PathProgramCache]: Analyzing trace with hash 208311, now seen corresponding path program 1 times [2024-11-14 03:53:20,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:53:20,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641312052] [2024-11-14 03:53:20,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:53:20,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:53:20,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:53:20,200 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 03:53:20,200 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:53:20,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641312052] [2024-11-14 03:53:20,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641312052] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:53:20,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:53:20,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:53:20,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567114987] [2024-11-14 03:53:20,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:53:20,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 03:53:20,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:53:20,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 03:53:20,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 03:53:20,227 INFO L87 Difference]: Start difference. First operand has 93 states, 87 states have (on average 2.310344827586207) internal successors, (201), 92 states have internal predecessors, (201), 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) [2024-11-14 03:53:20,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:53:20,283 INFO L93 Difference]: Finished difference Result 101 states and 213 transitions. [2024-11-14 03:53:20,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 03:53:20,287 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 [2024-11-14 03:53:20,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:53:20,299 INFO L225 Difference]: With dead ends: 101 [2024-11-14 03:53:20,299 INFO L226 Difference]: Without dead ends: 51 [2024-11-14 03:53:20,302 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 [2024-11-14 03:53:20,304 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:53:20,305 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 03:53:20,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2024-11-14 03:53:20,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2024-11-14 03:53:20,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 49 states have (on average 2.020408163265306) internal successors, (99), 50 states have internal predecessors, (99), 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 03:53:20,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 99 transitions. [2024-11-14 03:53:20,337 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 99 transitions. Word has length 3 [2024-11-14 03:53:20,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:53:20,337 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 99 transitions. [2024-11-14 03:53:20,337 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) [2024-11-14 03:53:20,338 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 99 transitions. [2024-11-14 03:53:20,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-14 03:53:20,338 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:53:20,338 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2024-11-14 03:53:20,338 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 03:53:20,338 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-14 03:53:20,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:53:20,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1911003263, now seen corresponding path program 1 times [2024-11-14 03:53:20,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:53:20,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538543196] [2024-11-14 03:53:20,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:53:20,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:53:20,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 03:53:20,361 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 03:53:20,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 03:53:20,383 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-14 03:53:20,384 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 03:53:20,386 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 4 remaining) [2024-11-14 03:53:20,388 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (2 of 4 remaining) [2024-11-14 03:53:20,388 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 4 remaining) [2024-11-14 03:53:20,389 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 4 remaining) [2024-11-14 03:53:20,389 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 03:53:20,392 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-14 03:53:20,394 WARN L247 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-14 03:53:20,394 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-14 03:53:20,448 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-14 03:53:20,450 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 45 transitions, 100 flow [2024-11-14 03:53:20,573 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1254 states, 1239 states have (on average 3.5786924939467313) internal successors, (4434), 1253 states have internal predecessors, (4434), 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 03:53:20,577 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:53:20,578 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;@2d6ff505, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:53:20,578 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-14 03:53:20,585 INFO L276 IsEmpty]: Start isEmpty. Operand has 1254 states, 1239 states have (on average 3.5786924939467313) internal successors, (4434), 1253 states have internal predecessors, (4434), 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 03:53:20,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-14 03:53:20,587 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:53:20,587 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-14 03:53:20,587 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thr1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-14 03:53:20,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:53:20,587 INFO L85 PathProgramCache]: Analyzing trace with hash 252996, now seen corresponding path program 1 times [2024-11-14 03:53:20,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:53:20,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127683944] [2024-11-14 03:53:20,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:53:20,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:53:20,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:53:20,626 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 03:53:20,626 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:53:20,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127683944] [2024-11-14 03:53:20,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127683944] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:53:20,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:53:20,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:53:20,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52957727] [2024-11-14 03:53:20,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:53:20,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 03:53:20,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:53:20,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 03:53:20,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 03:53:20,640 INFO L87 Difference]: Start difference. First operand has 1254 states, 1239 states have (on average 3.5786924939467313) internal successors, (4434), 1253 states have internal predecessors, (4434), 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) [2024-11-14 03:53:20,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:53:20,749 INFO L93 Difference]: Finished difference Result 1436 states and 4973 transitions. [2024-11-14 03:53:20,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 03:53:20,750 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 [2024-11-14 03:53:20,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:53:20,761 INFO L225 Difference]: With dead ends: 1436 [2024-11-14 03:53:20,761 INFO L226 Difference]: Without dead ends: 615 [2024-11-14 03:53:20,768 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 [2024-11-14 03:53:20,769 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:53:20,771 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 15 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:53:20,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2024-11-14 03:53:20,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 615. [2024-11-14 03:53:20,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 615 states, 611 states have (on average 3.2013093289689034) internal successors, (1956), 614 states have internal predecessors, (1956), 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 03:53:20,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 1956 transitions. [2024-11-14 03:53:20,848 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 1956 transitions. Word has length 3 [2024-11-14 03:53:20,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:53:20,848 INFO L471 AbstractCegarLoop]: Abstraction has 615 states and 1956 transitions. [2024-11-14 03:53:20,848 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) [2024-11-14 03:53:20,849 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 1956 transitions. [2024-11-14 03:53:20,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-14 03:53:20,849 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:53:20,850 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1] [2024-11-14 03:53:20,851 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 03:53:20,851 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-14 03:53:20,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:53:20,852 INFO L85 PathProgramCache]: Analyzing trace with hash -592100236, now seen corresponding path program 1 times [2024-11-14 03:53:20,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:53:20,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70829313] [2024-11-14 03:53:20,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:53:20,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:53:20,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 03:53:20,885 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 03:53:20,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 03:53:20,910 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-14 03:53:20,911 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 03:53:20,911 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 5 remaining) [2024-11-14 03:53:20,911 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (3 of 5 remaining) [2024-11-14 03:53:20,911 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (2 of 5 remaining) [2024-11-14 03:53:20,911 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (1 of 5 remaining) [2024-11-14 03:53:20,911 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 5 remaining) [2024-11-14 03:53:20,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-14 03:53:20,917 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-14 03:53:20,917 WARN L247 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-14 03:53:20,917 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-14 03:53:21,002 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-14 03:53:21,004 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 53 places, 64 transitions, 146 flow [2024-11-14 03:53:22,046 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 16437 states, 16403 states have (on average 4.930073766993843) internal successors, (80868), 16436 states have internal predecessors, (80868), 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 03:53:22,052 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:53:22,053 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;@2d6ff505, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:53:22,053 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-14 03:53:22,097 INFO L276 IsEmpty]: Start isEmpty. Operand has 16437 states, 16403 states have (on average 4.930073766993843) internal successors, (80868), 16436 states have internal predecessors, (80868), 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 03:53:22,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-14 03:53:22,097 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:53:22,098 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-14 03:53:22,099 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thr1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-14 03:53:22,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:53:22,099 INFO L85 PathProgramCache]: Analyzing trace with hash 316548, now seen corresponding path program 1 times [2024-11-14 03:53:22,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:53:22,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766437353] [2024-11-14 03:53:22,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:53:22,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:53:22,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:53:22,136 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 03:53:22,136 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:53:22,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766437353] [2024-11-14 03:53:22,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766437353] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:53:22,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:53:22,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:53:22,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085461520] [2024-11-14 03:53:22,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:53:22,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 03:53:22,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:53:22,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 03:53:22,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 03:53:22,174 INFO L87 Difference]: Start difference. First operand has 16437 states, 16403 states have (on average 4.930073766993843) internal successors, (80868), 16436 states have internal predecessors, (80868), 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) [2024-11-14 03:53:22,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:53:22,932 INFO L93 Difference]: Finished difference Result 19487 states and 94407 transitions. [2024-11-14 03:53:22,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 03:53:22,933 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 [2024-11-14 03:53:22,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:53:23,059 INFO L225 Difference]: With dead ends: 19487 [2024-11-14 03:53:23,060 INFO L226 Difference]: Without dead ends: 7383 [2024-11-14 03:53:23,085 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 [2024-11-14 03:53:23,086 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:53:23,088 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 22 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:53:23,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7383 states. [2024-11-14 03:53:23,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7383 to 7383. [2024-11-14 03:53:23,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7383 states, 7375 states have (on average 4.433898305084746) internal successors, (32700), 7382 states have internal predecessors, (32700), 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 03:53:23,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7383 states to 7383 states and 32700 transitions. [2024-11-14 03:53:23,641 INFO L78 Accepts]: Start accepts. Automaton has 7383 states and 32700 transitions. Word has length 3 [2024-11-14 03:53:23,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:53:23,641 INFO L471 AbstractCegarLoop]: Abstraction has 7383 states and 32700 transitions. [2024-11-14 03:53:23,642 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) [2024-11-14 03:53:23,642 INFO L276 IsEmpty]: Start isEmpty. Operand 7383 states and 32700 transitions. [2024-11-14 03:53:23,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-14 03:53:23,643 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:53:23,643 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:53:23,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-14 03:53:23,644 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONMEMORY_LEAK === [thr1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-14 03:53:23,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:53:23,644 INFO L85 PathProgramCache]: Analyzing trace with hash 2055218576, now seen corresponding path program 1 times [2024-11-14 03:53:23,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:53:23,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881676492] [2024-11-14 03:53:23,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:53:23,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:53:23,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 03:53:23,683 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 03:53:23,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 03:53:23,730 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-14 03:53:23,730 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 03:53:23,730 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (5 of 6 remaining) [2024-11-14 03:53:23,731 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (4 of 6 remaining) [2024-11-14 03:53:23,731 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 6 remaining) [2024-11-14 03:53:23,731 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2024-11-14 03:53:23,731 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (1 of 6 remaining) [2024-11-14 03:53:23,731 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 6 remaining) [2024-11-14 03:53:23,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-14 03:53:23,732 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-14 03:53:23,769 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 3 thread instances [2024-11-14 03:53:23,770 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 03:53:23,778 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 03:53:23 BasicIcfg [2024-11-14 03:53:23,778 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 03:53:23,779 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 03:53:23,779 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 03:53:23,779 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 03:53:23,780 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:53:19" (3/4) ... [2024-11-14 03:53:23,782 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-14 03:53:23,783 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 03:53:23,784 INFO L158 Benchmark]: Toolchain (without parser) took 5198.85ms. Allocated memory was 117.4MB in the beginning and 880.8MB in the end (delta: 763.4MB). Free memory was 93.3MB in the beginning and 665.3MB in the end (delta: -572.0MB). Peak memory consumption was 186.9MB. Max. memory is 16.1GB. [2024-11-14 03:53:23,785 INFO L158 Benchmark]: CDTParser took 0.50ms. Allocated memory is still 167.8MB. Free memory is still 104.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:53:23,785 INFO L158 Benchmark]: CACSL2BoogieTranslator took 467.34ms. Allocated memory is still 117.4MB. Free memory was 93.0MB in the beginning and 73.9MB in the end (delta: 19.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 03:53:23,786 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.04ms. Allocated memory is still 117.4MB. Free memory was 73.9MB in the beginning and 72.0MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:53:23,786 INFO L158 Benchmark]: Boogie Preprocessor took 34.23ms. Allocated memory is still 117.4MB. Free memory was 72.0MB in the beginning and 71.3MB in the end (delta: 781.0kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 03:53:23,787 INFO L158 Benchmark]: RCFGBuilder took 596.92ms. Allocated memory is still 117.4MB. Free memory was 71.3MB in the beginning and 53.8MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 03:53:23,787 INFO L158 Benchmark]: TraceAbstraction took 4047.91ms. Allocated memory was 117.4MB in the beginning and 880.8MB in the end (delta: 763.4MB). Free memory was 53.5MB in the beginning and 665.3MB in the end (delta: -611.9MB). Peak memory consumption was 145.0MB. Max. memory is 16.1GB. [2024-11-14 03:53:23,788 INFO L158 Benchmark]: Witness Printer took 4.20ms. Allocated memory is still 880.8MB. Free memory was 665.3MB in the beginning and 665.3MB in the end (delta: 21.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:53:23,790 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50ms. Allocated memory is still 167.8MB. Free memory is still 104.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 467.34ms. Allocated memory is still 117.4MB. Free memory was 93.0MB in the beginning and 73.9MB in the end (delta: 19.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.04ms. Allocated memory is still 117.4MB. Free memory was 73.9MB in the beginning and 72.0MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 34.23ms. Allocated memory is still 117.4MB. Free memory was 72.0MB in the beginning and 71.3MB in the end (delta: 781.0kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 596.92ms. Allocated memory is still 117.4MB. Free memory was 71.3MB in the beginning and 53.8MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 4047.91ms. Allocated memory was 117.4MB in the beginning and 880.8MB in the end (delta: 763.4MB). Free memory was 53.5MB in the beginning and 665.3MB in the end (delta: -611.9MB). Peak memory consumption was 145.0MB. Max. memory is 16.1GB. * Witness Printer took 4.20ms. Allocated memory is still 880.8MB. Free memory was 665.3MB in the beginning and 665.3MB in the end (delta: 21.0kB). 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 - 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 - 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 - UnprovableResult [Line: 12]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 12. Possible FailurePath: [L700] 0 pthread_t t; [L701] COND TRUE 0 1 [L703] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [t=-1] [L686] 1 unsigned int x=__VERIFIER_nondet_uint(), y=__VERIFIER_nondet_uint(), z=__VERIFIER_nondet_uint(); [L686] 1 unsigned int x=__VERIFIER_nondet_uint(), y=__VERIFIER_nondet_uint(), z=__VERIFIER_nondet_uint(); [L686] 1 unsigned int x=__VERIFIER_nondet_uint(), y=__VERIFIER_nondet_uint(), z=__VERIFIER_nondet_uint(); [L687] 1 int i, j=1, k=1; [L688] 1 i=0 VAL [\old(arg)={0:0}, arg={0:0}, i=0, j=1, k=1] [L688] COND FALSE 1 !(i main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16cb1f75-004f-412f-a847-33da7457d285/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 -> f7757e6e73d857d492b029f13f86cb5d550622238e5a2b483c58ab6fc3ffdeb1 [2024-11-14 03:53:27,894 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:53:27,919 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:53:27,922 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:53:27,924 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:53:27,924 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:53:27,929 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16cb1f75-004f-412f-a847-33da7457d285/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/pthread-ext/28_buggy_simple_loop1_vf.i Unable to find full path for "g++" [2024-11-14 03:53:30,319 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:53:30,812 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:53:30,814 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16cb1f75-004f-412f-a847-33da7457d285/sv-benchmarks/c/pthread-ext/28_buggy_simple_loop1_vf.i [2024-11-14 03:53:30,842 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16cb1f75-004f-412f-a847-33da7457d285/bin/utaipan-verify-sOmjnqqW8E/data/15b7b0fb6/fff63de49a174353b363ab3fadab6942/FLAGda552a800 [2024-11-14 03:53:30,868 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16cb1f75-004f-412f-a847-33da7457d285/bin/utaipan-verify-sOmjnqqW8E/data/15b7b0fb6/fff63de49a174353b363ab3fadab6942 [2024-11-14 03:53:30,871 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:53:30,874 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:53:30,876 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:53:30,876 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:53:30,883 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:53:30,885 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:53:30" (1/1) ... [2024-11-14 03:53:30,887 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@396b2876 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:30, skipping insertion in model container [2024-11-14 03:53:30,888 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:53:30" (1/1) ... [2024-11-14 03:53:30,934 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:53:31,487 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:53:31,504 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:53:31,560 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:53:31,616 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:53:31,617 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:31 WrapperNode [2024-11-14 03:53:31,618 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:53:31,619 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:53:31,620 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:53:31,620 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:53:31,627 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:31" (1/1) ... [2024-11-14 03:53:31,652 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:31" (1/1) ... [2024-11-14 03:53:31,680 INFO L138 Inliner]: procedures = 167, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 63 [2024-11-14 03:53:31,681 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:53:31,681 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:53:31,681 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:53:31,681 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:53:31,693 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:31" (1/1) ... [2024-11-14 03:53:31,694 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:31" (1/1) ... [2024-11-14 03:53:31,699 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:31" (1/1) ... [2024-11-14 03:53:31,703 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:31" (1/1) ... [2024-11-14 03:53:31,715 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:31" (1/1) ... [2024-11-14 03:53:31,722 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:31" (1/1) ... [2024-11-14 03:53:31,724 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:31" (1/1) ... [2024-11-14 03:53:31,729 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:31" (1/1) ... [2024-11-14 03:53:31,732 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:53:31,737 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:53:31,737 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:53:31,738 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:53:31,739 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:31" (1/1) ... [2024-11-14 03:53:31,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:53:31,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16cb1f75-004f-412f-a847-33da7457d285/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:53:31,782 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16cb1f75-004f-412f-a847-33da7457d285/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:53:31,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16cb1f75-004f-412f-a847-33da7457d285/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:53:31,817 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-11-14 03:53:31,818 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-11-14 03:53:31,818 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:53:31,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-14 03:53:31,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:53:31,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:53:31,820 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-14 03:53:32,027 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:53:32,029 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:53:32,241 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-14 03:53:32,241 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:53:32,436 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:53:32,436 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-14 03:53:32,438 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:53:32 BoogieIcfgContainer [2024-11-14 03:53:32,438 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:53:32,442 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:53:32,442 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:53:32,448 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:53:32,448 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:53:30" (1/3) ... [2024-11-14 03:53:32,449 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bba65e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:53:32, skipping insertion in model container [2024-11-14 03:53:32,449 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:31" (2/3) ... [2024-11-14 03:53:32,450 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bba65e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:53:32, skipping insertion in model container [2024-11-14 03:53:32,450 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:53:32" (3/3) ... [2024-11-14 03:53:32,451 INFO L112 eAbstractionObserver]: Analyzing ICFG 28_buggy_simple_loop1_vf.i [2024-11-14 03:53:32,474 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:53:32,477 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG 28_buggy_simple_loop1_vf.i that has 2 procedures, 20 locations, 1 initial locations, 4 loop locations, and 2 error locations. [2024-11-14 03:53:32,478 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-14 03:53:32,593 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-14 03:53:32,628 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 23 places, 26 transitions, 56 flow [2024-11-14 03:53:32,660 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 93 states, 87 states have (on average 2.310344827586207) internal successors, (201), 92 states have internal predecessors, (201), 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 03:53:32,697 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:53:32,716 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;@7e88a1a7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:53:32,716 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-14 03:53:32,720 INFO L276 IsEmpty]: Start isEmpty. Operand has 93 states, 87 states have (on average 2.310344827586207) internal successors, (201), 92 states have internal predecessors, (201), 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 03:53:32,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-14 03:53:32,726 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:53:32,726 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-14 03:53:32,727 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thr1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-14 03:53:32,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:53:32,734 INFO L85 PathProgramCache]: Analyzing trace with hash 210297, now seen corresponding path program 1 times [2024-11-14 03:53:32,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:53:32,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1318632627] [2024-11-14 03:53:32,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:53:32,747 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:53:32,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16cb1f75-004f-412f-a847-33da7457d285/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:53:32,751 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16cb1f75-004f-412f-a847-33da7457d285/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 03:53:32,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16cb1f75-004f-412f-a847-33da7457d285/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-14 03:53:32,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:53:32,856 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-14 03:53:32,858 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:53:32,880 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 03:53:32,880 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:53:32,881 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:53:32,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1318632627] [2024-11-14 03:53:32,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1318632627] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:53:32,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:53:32,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:53:32,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620276350] [2024-11-14 03:53:32,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:53:32,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 03:53:32,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:53:32,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 03:53:32,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 03:53:32,921 INFO L87 Difference]: Start difference. First operand has 93 states, 87 states have (on average 2.310344827586207) internal successors, (201), 92 states have internal predecessors, (201), 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) [2024-11-14 03:53:32,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:53:32,983 INFO L93 Difference]: Finished difference Result 101 states and 213 transitions. [2024-11-14 03:53:32,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 03:53:32,986 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 [2024-11-14 03:53:32,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:53:32,995 INFO L225 Difference]: With dead ends: 101 [2024-11-14 03:53:32,996 INFO L226 Difference]: Without dead ends: 51 [2024-11-14 03:53:32,999 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 [2024-11-14 03:53:33,004 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:53:33,005 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 03:53:33,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2024-11-14 03:53:33,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2024-11-14 03:53:33,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 49 states have (on average 2.020408163265306) internal successors, (99), 50 states have internal predecessors, (99), 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 03:53:33,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 99 transitions. [2024-11-14 03:53:33,061 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 99 transitions. Word has length 3 [2024-11-14 03:53:33,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:53:33,062 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 99 transitions. [2024-11-14 03:53:33,062 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) [2024-11-14 03:53:33,062 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 99 transitions. [2024-11-14 03:53:33,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-14 03:53:33,063 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:53:33,063 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2024-11-14 03:53:33,067 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16cb1f75-004f-412f-a847-33da7457d285/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2024-11-14 03:53:33,266 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16cb1f75-004f-412f-a847-33da7457d285/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:53:33,267 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-14 03:53:33,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:53:33,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1970170175, now seen corresponding path program 1 times [2024-11-14 03:53:33,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:53:33,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1329392773] [2024-11-14 03:53:33,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:53:33,268 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:53:33,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16cb1f75-004f-412f-a847-33da7457d285/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:53:33,271 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16cb1f75-004f-412f-a847-33da7457d285/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 03:53:33,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16cb1f75-004f-412f-a847-33da7457d285/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-14 03:53:33,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 03:53:33,338 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 03:53:33,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 03:53:33,386 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2024-11-14 03:53:33,387 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 03:53:33,389 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 4 remaining) [2024-11-14 03:53:33,391 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (2 of 4 remaining) [2024-11-14 03:53:33,392 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 4 remaining) [2024-11-14 03:53:33,392 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 4 remaining) [2024-11-14 03:53:33,395 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16cb1f75-004f-412f-a847-33da7457d285/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-11-14 03:53:33,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16cb1f75-004f-412f-a847-33da7457d285/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:53:33,595 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-14 03:53:33,598 WARN L247 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-14 03:53:33,598 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-14 03:53:33,660 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-14 03:53:33,662 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 45 transitions, 100 flow [2024-11-14 03:53:33,789 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1254 states, 1239 states have (on average 3.5786924939467313) internal successors, (4434), 1253 states have internal predecessors, (4434), 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 03:53:33,792 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:53:33,793 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;@7e88a1a7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:53:33,793 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-14 03:53:33,799 INFO L276 IsEmpty]: Start isEmpty. Operand has 1254 states, 1239 states have (on average 3.5786924939467313) internal successors, (4434), 1253 states have internal predecessors, (4434), 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 03:53:33,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-14 03:53:33,800 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:53:33,800 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-14 03:53:33,801 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thr1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-14 03:53:33,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:53:33,801 INFO L85 PathProgramCache]: Analyzing trace with hash 254982, now seen corresponding path program 1 times [2024-11-14 03:53:33,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:53:33,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1759452981] [2024-11-14 03:53:33,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:53:33,802 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:53:33,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16cb1f75-004f-412f-a847-33da7457d285/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:53:33,805 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16cb1f75-004f-412f-a847-33da7457d285/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 03:53:33,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16cb1f75-004f-412f-a847-33da7457d285/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-14 03:53:33,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:53:33,862 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-14 03:53:33,862 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:53:33,863 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 03:53:33,863 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:53:33,863 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:53:33,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1759452981] [2024-11-14 03:53:33,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1759452981] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:53:33,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:53:33,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:53:33,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39397745] [2024-11-14 03:53:33,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:53:33,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 03:53:33,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:53:33,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 03:53:33,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 03:53:33,872 INFO L87 Difference]: Start difference. First operand has 1254 states, 1239 states have (on average 3.5786924939467313) internal successors, (4434), 1253 states have internal predecessors, (4434), 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) [2024-11-14 03:53:34,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:53:34,038 INFO L93 Difference]: Finished difference Result 1436 states and 4973 transitions. [2024-11-14 03:53:34,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 03:53:34,039 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 [2024-11-14 03:53:34,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:53:34,060 INFO L225 Difference]: With dead ends: 1436 [2024-11-14 03:53:34,060 INFO L226 Difference]: Without dead ends: 615 [2024-11-14 03:53:34,067 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 [2024-11-14 03:53:34,068 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:53:34,068 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 15 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:53:34,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2024-11-14 03:53:34,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 615. [2024-11-14 03:53:34,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 615 states, 611 states have (on average 3.2013093289689034) internal successors, (1956), 614 states have internal predecessors, (1956), 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 03:53:34,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 1956 transitions. [2024-11-14 03:53:34,165 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 1956 transitions. Word has length 3 [2024-11-14 03:53:34,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:53:34,166 INFO L471 AbstractCegarLoop]: Abstraction has 615 states and 1956 transitions. [2024-11-14 03:53:34,166 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) [2024-11-14 03:53:34,166 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 1956 transitions. [2024-11-14 03:53:34,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-14 03:53:34,168 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:53:34,168 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1] [2024-11-14 03:53:34,172 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16cb1f75-004f-412f-a847-33da7457d285/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-14 03:53:34,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16cb1f75-004f-412f-a847-33da7457d285/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:53:34,370 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-14 03:53:34,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:53:34,371 INFO L85 PathProgramCache]: Analyzing trace with hash 1112785782, now seen corresponding path program 1 times [2024-11-14 03:53:34,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:53:34,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [42884526] [2024-11-14 03:53:34,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:53:34,372 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:53:34,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16cb1f75-004f-412f-a847-33da7457d285/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:53:34,374 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16cb1f75-004f-412f-a847-33da7457d285/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 03:53:34,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16cb1f75-004f-412f-a847-33da7457d285/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-14 03:53:34,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 03:53:34,449 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 03:53:34,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 03:53:34,508 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2024-11-14 03:53:34,508 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 03:53:34,508 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 5 remaining) [2024-11-14 03:53:34,508 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (3 of 5 remaining) [2024-11-14 03:53:34,509 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (2 of 5 remaining) [2024-11-14 03:53:34,509 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (1 of 5 remaining) [2024-11-14 03:53:34,509 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 5 remaining) [2024-11-14 03:53:34,513 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16cb1f75-004f-412f-a847-33da7457d285/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-14 03:53:34,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16cb1f75-004f-412f-a847-33da7457d285/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:53:34,712 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-14 03:53:34,712 WARN L247 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-14 03:53:34,713 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-14 03:53:34,802 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-14 03:53:34,808 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 53 places, 64 transitions, 146 flow [2024-11-14 03:53:35,936 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 16437 states, 16403 states have (on average 4.930073766993843) internal successors, (80868), 16436 states have internal predecessors, (80868), 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 03:53:35,941 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:53:35,942 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;@7e88a1a7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:53:35,942 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-14 03:53:36,013 INFO L276 IsEmpty]: Start isEmpty. Operand has 16437 states, 16403 states have (on average 4.930073766993843) internal successors, (80868), 16436 states have internal predecessors, (80868), 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 03:53:36,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-14 03:53:36,014 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:53:36,014 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-14 03:53:36,014 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thr1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-14 03:53:36,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:53:36,015 INFO L85 PathProgramCache]: Analyzing trace with hash 318534, now seen corresponding path program 1 times [2024-11-14 03:53:36,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:53:36,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1746862309] [2024-11-14 03:53:36,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:53:36,016 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:53:36,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16cb1f75-004f-412f-a847-33da7457d285/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:53:36,018 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16cb1f75-004f-412f-a847-33da7457d285/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 03:53:36,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16cb1f75-004f-412f-a847-33da7457d285/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-14 03:53:36,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:53:36,089 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-14 03:53:36,089 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:53:36,090 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 03:53:36,090 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:53:36,090 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:53:36,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1746862309] [2024-11-14 03:53:36,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1746862309] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:53:36,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:53:36,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:53:36,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140282006] [2024-11-14 03:53:36,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:53:36,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 03:53:36,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:53:36,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 03:53:36,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 03:53:36,151 INFO L87 Difference]: Start difference. First operand has 16437 states, 16403 states have (on average 4.930073766993843) internal successors, (80868), 16436 states have internal predecessors, (80868), 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) [2024-11-14 03:53:36,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:53:36,982 INFO L93 Difference]: Finished difference Result 19487 states and 94407 transitions. [2024-11-14 03:53:36,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 03:53:36,984 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 [2024-11-14 03:53:36,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:53:37,134 INFO L225 Difference]: With dead ends: 19487 [2024-11-14 03:53:37,136 INFO L226 Difference]: Without dead ends: 7383 [2024-11-14 03:53:37,215 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 [2024-11-14 03:53:37,219 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:53:37,219 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 22 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:53:37,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7383 states. [2024-11-14 03:53:37,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7383 to 7383. [2024-11-14 03:53:37,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7383 states, 7375 states have (on average 4.433898305084746) internal successors, (32700), 7382 states have internal predecessors, (32700), 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 03:53:37,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7383 states to 7383 states and 32700 transitions. [2024-11-14 03:53:37,739 INFO L78 Accepts]: Start accepts. Automaton has 7383 states and 32700 transitions. Word has length 3 [2024-11-14 03:53:37,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:53:37,739 INFO L471 AbstractCegarLoop]: Abstraction has 7383 states and 32700 transitions. [2024-11-14 03:53:37,739 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) [2024-11-14 03:53:37,739 INFO L276 IsEmpty]: Start isEmpty. Operand 7383 states and 32700 transitions. [2024-11-14 03:53:37,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-14 03:53:37,740 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:53:37,740 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:53:37,744 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16cb1f75-004f-412f-a847-33da7457d285/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-11-14 03:53:37,942 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16cb1f75-004f-412f-a847-33da7457d285/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:53:37,943 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONMEMORY_LEAK === [thr1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-14 03:53:37,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:53:37,943 INFO L85 PathProgramCache]: Analyzing trace with hash -534862702, now seen corresponding path program 1 times [2024-11-14 03:53:37,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:53:37,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [279612185] [2024-11-14 03:53:37,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:53:37,944 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:53:37,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16cb1f75-004f-412f-a847-33da7457d285/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:53:37,949 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16cb1f75-004f-412f-a847-33da7457d285/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 03:53:37,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16cb1f75-004f-412f-a847-33da7457d285/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-14 03:53:38,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 03:53:38,022 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 03:53:38,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 03:53:38,075 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2024-11-14 03:53:38,075 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 03:53:38,076 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (5 of 6 remaining) [2024-11-14 03:53:38,078 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (4 of 6 remaining) [2024-11-14 03:53:38,078 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 6 remaining) [2024-11-14 03:53:38,078 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2024-11-14 03:53:38,079 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (1 of 6 remaining) [2024-11-14 03:53:38,079 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 6 remaining) [2024-11-14 03:53:38,082 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16cb1f75-004f-412f-a847-33da7457d285/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-11-14 03:53:38,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16cb1f75-004f-412f-a847-33da7457d285/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:53:38,280 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-14 03:53:38,312 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 3 thread instances [2024-11-14 03:53:38,313 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 03:53:38,320 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 03:53:38 BasicIcfg [2024-11-14 03:53:38,321 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 03:53:38,321 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 03:53:38,321 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 03:53:38,322 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 03:53:38,326 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:53:32" (3/4) ... [2024-11-14 03:53:38,328 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-14 03:53:38,328 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 03:53:38,329 INFO L158 Benchmark]: Toolchain (without parser) took 7456.68ms. Allocated memory was 117.4MB in the beginning and 612.4MB in the end (delta: 494.9MB). Free memory was 91.1MB in the beginning and 402.4MB in the end (delta: -311.3MB). Peak memory consumption was 182.7MB. Max. memory is 16.1GB. [2024-11-14 03:53:38,329 INFO L158 Benchmark]: CDTParser took 0.43ms. Allocated memory is still 117.4MB. Free memory is still 83.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:53:38,330 INFO L158 Benchmark]: CACSL2BoogieTranslator took 742.82ms. Allocated memory is still 117.4MB. Free memory was 90.9MB in the beginning and 71.0MB in the end (delta: 19.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 03:53:38,330 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.18ms. Allocated memory is still 117.4MB. Free memory was 71.0MB in the beginning and 69.4MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 03:53:38,330 INFO L158 Benchmark]: Boogie Preprocessor took 55.28ms. Allocated memory is still 117.4MB. Free memory was 69.4MB in the beginning and 68.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:53:38,331 INFO L158 Benchmark]: RCFGBuilder took 701.27ms. Allocated memory is still 117.4MB. Free memory was 68.0MB in the beginning and 47.9MB in the end (delta: 20.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 03:53:38,331 INFO L158 Benchmark]: TraceAbstraction took 5879.17ms. Allocated memory was 117.4MB in the beginning and 612.4MB in the end (delta: 494.9MB). Free memory was 47.4MB in the beginning and 402.4MB in the end (delta: -355.1MB). Peak memory consumption was 140.7MB. Max. memory is 16.1GB. [2024-11-14 03:53:38,331 INFO L158 Benchmark]: Witness Printer took 7.16ms. Allocated memory is still 612.4MB. Free memory was 402.4MB in the beginning and 402.4MB in the end (delta: 49.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:53:38,333 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43ms. Allocated memory is still 117.4MB. Free memory is still 83.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 742.82ms. Allocated memory is still 117.4MB. Free memory was 90.9MB in the beginning and 71.0MB in the end (delta: 19.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.18ms. Allocated memory is still 117.4MB. Free memory was 71.0MB in the beginning and 69.4MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.28ms. Allocated memory is still 117.4MB. Free memory was 69.4MB in the beginning and 68.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 701.27ms. Allocated memory is still 117.4MB. Free memory was 68.0MB in the beginning and 47.9MB in the end (delta: 20.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 5879.17ms. Allocated memory was 117.4MB in the beginning and 612.4MB in the end (delta: 494.9MB). Free memory was 47.4MB in the beginning and 402.4MB in the end (delta: -355.1MB). Peak memory consumption was 140.7MB. Max. memory is 16.1GB. * Witness Printer took 7.16ms. Allocated memory is still 612.4MB. Free memory was 402.4MB in the beginning and 402.4MB in the end (delta: 49.6kB). 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 - 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 - 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 - UnprovableResult [Line: 12]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 12. Possible FailurePath: [L700] 0 pthread_t t; [L701] COND TRUE 0 1 [L703] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [t=0] [L686] 1 unsigned int x=__VERIFIER_nondet_uint(), y=__VERIFIER_nondet_uint(), z=__VERIFIER_nondet_uint(); [L686] 1 unsigned int x=__VERIFIER_nondet_uint(), y=__VERIFIER_nondet_uint(), z=__VERIFIER_nondet_uint(); [L686] 1 unsigned int x=__VERIFIER_nondet_uint(), y=__VERIFIER_nondet_uint(), z=__VERIFIER_nondet_uint(); [L687] 1 int i, j=1, k=1; [L688] 1 i=0 VAL [\old(arg)={0:0}, arg={0:0}, i=0, j=1, k=1] [L688] COND FALSE 1 !(i