./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/rfi006_pso.oepc_pso.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737f834f-03a0-42a0-8902-c2d26d33236c/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737f834f-03a0-42a0-8902-c2d26d33236c/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737f834f-03a0-42a0-8902-c2d26d33236c/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737f834f-03a0-42a0-8902-c2d26d33236c/bin/utaipan-verify-DbMuA5NWw2/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/rfi006_pso.oepc_pso.opt_tso.oepc_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737f834f-03a0-42a0-8902-c2d26d33236c/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737f834f-03a0-42a0-8902-c2d26d33236c/bin/utaipan-verify-DbMuA5NWw2 --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 596bf38d5c1bddbb7fa933c2910678824d7396d44da5246db401a53a5b4ba843 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:34:00,924 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:34:01,025 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737f834f-03a0-42a0-8902-c2d26d33236c/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2024-11-02 12:34:01,032 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:34:01,036 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:34:01,073 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:34:01,076 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:34:01,076 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:34:01,077 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:34:01,078 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:34:01,079 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:34:01,079 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:34:01,080 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:34:01,080 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 12:34:01,082 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:34:01,083 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:34:01,083 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 12:34:01,083 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 12:34:01,084 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:34:01,084 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 12:34:01,084 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 12:34:01,085 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 12:34:01,085 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-02 12:34:01,086 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-02 12:34:01,086 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:34:01,087 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 12:34:01,087 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 12:34:01,087 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 12:34:01,087 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:34:01,088 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-02 12:34:01,088 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-02 12:34:01,088 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-02 12:34:01,089 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:34:01,089 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-02 12:34:01,089 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:34:01,089 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-02 12:34:01,090 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 12:34:01,090 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:34:01,090 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:34:01,091 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:34:01,091 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:34:01,091 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:34:01,092 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:34:01,092 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:34:01,092 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 12:34:01,092 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 12:34:01,093 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:34:01,093 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:34:01,093 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:34:01,094 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737f834f-03a0-42a0-8902-c2d26d33236c/bin/utaipan-verify-DbMuA5NWw2/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737f834f-03a0-42a0-8902-c2d26d33236c/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 596bf38d5c1bddbb7fa933c2910678824d7396d44da5246db401a53a5b4ba843 [2024-11-02 12:34:01,373 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:34:01,396 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:34:01,400 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:34:01,401 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:34:01,402 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:34:01,403 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737f834f-03a0-42a0-8902-c2d26d33236c/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/pthread-wmm/rfi006_pso.oepc_pso.opt_tso.oepc_tso.opt.i Unable to find full path for "g++" [2024-11-02 12:34:03,457 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:34:03,734 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:34:03,735 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737f834f-03a0-42a0-8902-c2d26d33236c/sv-benchmarks/c/pthread-wmm/rfi006_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-11-02 12:34:03,752 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737f834f-03a0-42a0-8902-c2d26d33236c/bin/utaipan-verify-DbMuA5NWw2/data/43e09b73e/da75fcfa33ab426189d904c8fb03f199/FLAGaea57d1b9 [2024-11-02 12:34:04,027 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737f834f-03a0-42a0-8902-c2d26d33236c/bin/utaipan-verify-DbMuA5NWw2/data/43e09b73e/da75fcfa33ab426189d904c8fb03f199 [2024-11-02 12:34:04,030 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:34:04,031 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:34:04,033 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:34:04,033 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:34:04,041 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:34:04,041 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:34:04" (1/1) ... [2024-11-02 12:34:04,044 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d86c711 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:04, skipping insertion in model container [2024-11-02 12:34:04,044 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:34:04" (1/1) ... [2024-11-02 12:34:04,111 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:34:04,676 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:34:04,694 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:34:04,789 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:34:04,836 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:34:04,837 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:04 WrapperNode [2024-11-02 12:34:04,838 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:34:04,839 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:34:04,839 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:34:04,839 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:34:04,847 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:04" (1/1) ... [2024-11-02 12:34:04,873 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:04" (1/1) ... [2024-11-02 12:34:04,925 INFO L138 Inliner]: procedures = 175, calls = 43, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 160 [2024-11-02 12:34:04,929 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:34:04,930 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:34:04,930 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:34:04,930 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:34:04,941 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:04" (1/1) ... [2024-11-02 12:34:04,941 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:04" (1/1) ... [2024-11-02 12:34:04,944 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:04" (1/1) ... [2024-11-02 12:34:04,946 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:04" (1/1) ... [2024-11-02 12:34:04,994 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:04" (1/1) ... [2024-11-02 12:34:04,997 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:04" (1/1) ... [2024-11-02 12:34:05,001 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:04" (1/1) ... [2024-11-02 12:34:05,004 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:04" (1/1) ... [2024-11-02 12:34:05,010 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:34:05,014 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:34:05,014 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:34:05,014 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:34:05,015 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:04" (1/1) ... [2024-11-02 12:34:05,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:34:05,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737f834f-03a0-42a0-8902-c2d26d33236c/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:34:05,079 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737f834f-03a0-42a0-8902-c2d26d33236c/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:34:05,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737f834f-03a0-42a0-8902-c2d26d33236c/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:34:05,115 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-02 12:34:05,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:34:05,116 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-02 12:34:05,116 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-02 12:34:05,116 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-02 12:34:05,118 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-02 12:34:05,118 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-02 12:34:05,118 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-02 12:34:05,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 12:34:05,118 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-02 12:34:05,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:34:05,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:34:05,121 WARN L207 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-02 12:34:05,287 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:34:05,290 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:34:05,722 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-02 12:34:05,722 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:34:05,990 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:34:05,990 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-02 12:34:05,991 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:34:05 BoogieIcfgContainer [2024-11-02 12:34:05,991 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:34:05,996 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:34:05,997 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:34:06,000 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:34:06,001 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:34:04" (1/3) ... [2024-11-02 12:34:06,001 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f2cce46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:34:06, skipping insertion in model container [2024-11-02 12:34:06,002 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:04" (2/3) ... [2024-11-02 12:34:06,004 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f2cce46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:34:06, skipping insertion in model container [2024-11-02 12:34:06,004 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:34:05" (3/3) ... [2024-11-02 12:34:06,005 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi006_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-11-02 12:34:06,025 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:34:06,025 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-11-02 12:34:06,025 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-02 12:34:06,098 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-02 12:34:06,135 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 52 places, 44 transitions, 100 flow [2024-11-02 12:34:06,566 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 5560 states, 5555 states have (on average 3.621422142214221) internal successors, (20117), 5559 states have internal predecessors, (20117), 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) [2024-11-02 12:34:06,607 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:34:06,615 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;@454e1323, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:34:06,616 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-02 12:34:06,639 INFO L276 IsEmpty]: Start isEmpty. Operand has 5560 states, 5555 states have (on average 3.621422142214221) internal successors, (20117), 5559 states have internal predecessors, (20117), 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) [2024-11-02 12:34:06,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-02 12:34:06,646 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:34:06,647 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-02 12:34:06,648 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-02 12:34:06,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:34:06,656 INFO L85 PathProgramCache]: Analyzing trace with hash -229865288, now seen corresponding path program 1 times [2024-11-02 12:34:06,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:34:06,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406585835] [2024-11-02 12:34:06,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:34:06,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:34:06,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:34:07,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:34:07,396 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:34:07,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406585835] [2024-11-02 12:34:07,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406585835] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:34:07,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:34:07,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-02 12:34:07,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572319254] [2024-11-02 12:34:07,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:34:07,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:34:07,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:34:07,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:34:07,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:34:07,450 INFO L87 Difference]: Start difference. First operand has 5560 states, 5555 states have (on average 3.621422142214221) internal successors, (20117), 5559 states have internal predecessors, (20117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2024-11-02 12:34:07,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:34:07,816 INFO L93 Difference]: Finished difference Result 6652 states and 23811 transitions. [2024-11-02 12:34:07,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:34:07,821 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2024-11-02 12:34:07,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:34:07,895 INFO L225 Difference]: With dead ends: 6652 [2024-11-02 12:34:07,895 INFO L226 Difference]: Without dead ends: 4496 [2024-11-02 12:34:07,906 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:34:07,909 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 22 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 12:34:07,911 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 29 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 12:34:07,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4496 states. [2024-11-02 12:34:08,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4496 to 4496. [2024-11-02 12:34:08,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4496 states, 4494 states have (on average 3.4650645304850913) internal successors, (15572), 4495 states have internal predecessors, (15572), 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) [2024-11-02 12:34:08,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4496 states to 4496 states and 15572 transitions. [2024-11-02 12:34:08,272 INFO L78 Accepts]: Start accepts. Automaton has 4496 states and 15572 transitions. Word has length 6 [2024-11-02 12:34:08,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:34:08,273 INFO L471 AbstractCegarLoop]: Abstraction has 4496 states and 15572 transitions. [2024-11-02 12:34:08,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2024-11-02 12:34:08,274 INFO L276 IsEmpty]: Start isEmpty. Operand 4496 states and 15572 transitions. [2024-11-02 12:34:08,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-02 12:34:08,288 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:34:08,288 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:34:08,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-02 12:34:08,288 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-02 12:34:08,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:34:08,289 INFO L85 PathProgramCache]: Analyzing trace with hash -60530814, now seen corresponding path program 1 times [2024-11-02 12:34:08,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:34:08,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982365531] [2024-11-02 12:34:08,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:34:08,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:34:08,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:34:08,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:34:08,425 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:34:08,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982365531] [2024-11-02 12:34:08,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982365531] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:34:08,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:34:08,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-02 12:34:08,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363226614] [2024-11-02 12:34:08,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:34:08,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:34:08,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:34:08,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:34:08,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:34:08,430 INFO L87 Difference]: Start difference. First operand 4496 states and 15572 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 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) [2024-11-02 12:34:08,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:34:08,575 INFO L93 Difference]: Finished difference Result 4496 states and 15572 transitions. [2024-11-02 12:34:08,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:34:08,576 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 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 15 [2024-11-02 12:34:08,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:34:08,614 INFO L225 Difference]: With dead ends: 4496 [2024-11-02 12:34:08,614 INFO L226 Difference]: Without dead ends: 3488 [2024-11-02 12:34:08,620 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:34:08,622 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 21 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 14 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 [2024-11-02 12:34:08,622 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 14 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:34:08,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3488 states. [2024-11-02 12:34:08,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3488 to 3488. [2024-11-02 12:34:08,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3488 states, 3487 states have (on average 3.4350444508173217) internal successors, (11978), 3487 states have internal predecessors, (11978), 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) [2024-11-02 12:34:08,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3488 states to 3488 states and 11978 transitions. [2024-11-02 12:34:08,865 INFO L78 Accepts]: Start accepts. Automaton has 3488 states and 11978 transitions. Word has length 15 [2024-11-02 12:34:08,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:34:08,867 INFO L471 AbstractCegarLoop]: Abstraction has 3488 states and 11978 transitions. [2024-11-02 12:34:08,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 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) [2024-11-02 12:34:08,868 INFO L276 IsEmpty]: Start isEmpty. Operand 3488 states and 11978 transitions. [2024-11-02 12:34:08,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-02 12:34:08,872 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:34:08,872 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:34:08,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-02 12:34:08,872 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-02 12:34:08,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:34:08,875 INFO L85 PathProgramCache]: Analyzing trace with hash -60529228, now seen corresponding path program 1 times [2024-11-02 12:34:08,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:34:08,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966355224] [2024-11-02 12:34:08,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:34:08,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:34:08,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:34:09,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:34:09,335 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:34:09,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966355224] [2024-11-02 12:34:09,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966355224] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:34:09,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:34:09,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 12:34:09,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101490581] [2024-11-02 12:34:09,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:34:09,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 12:34:09,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:34:09,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 12:34:09,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-02 12:34:09,340 INFO L87 Difference]: Start difference. First operand 3488 states and 11978 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 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) [2024-11-02 12:34:09,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:34:09,596 INFO L93 Difference]: Finished difference Result 5216 states and 17506 transitions. [2024-11-02 12:34:09,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 12:34:09,597 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 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 15 [2024-11-02 12:34:09,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:34:09,624 INFO L225 Difference]: With dead ends: 5216 [2024-11-02 12:34:09,624 INFO L226 Difference]: Without dead ends: 2528 [2024-11-02 12:34:09,631 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-02 12:34:09,633 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 57 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 12:34:09,634 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 30 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 12:34:09,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2528 states. [2024-11-02 12:34:09,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2528 to 2528. [2024-11-02 12:34:09,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2528 states, 2527 states have (on average 3.220419469726949) internal successors, (8138), 2527 states have internal predecessors, (8138), 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) [2024-11-02 12:34:09,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2528 states to 2528 states and 8138 transitions. [2024-11-02 12:34:09,762 INFO L78 Accepts]: Start accepts. Automaton has 2528 states and 8138 transitions. Word has length 15 [2024-11-02 12:34:09,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:34:09,763 INFO L471 AbstractCegarLoop]: Abstraction has 2528 states and 8138 transitions. [2024-11-02 12:34:09,764 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 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) [2024-11-02 12:34:09,764 INFO L276 IsEmpty]: Start isEmpty. Operand 2528 states and 8138 transitions. [2024-11-02 12:34:09,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-02 12:34:09,770 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:34:09,770 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:34:09,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-02 12:34:09,771 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-02 12:34:09,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:34:09,771 INFO L85 PathProgramCache]: Analyzing trace with hash 1247066486, now seen corresponding path program 1 times [2024-11-02 12:34:09,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:34:09,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853197931] [2024-11-02 12:34:09,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:34:09,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:34:09,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:34:10,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:34:10,218 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:34:10,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853197931] [2024-11-02 12:34:10,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853197931] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:34:10,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:34:10,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-02 12:34:10,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011496299] [2024-11-02 12:34:10,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:34:10,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-02 12:34:10,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:34:10,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-02 12:34:10,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-02 12:34:10,221 INFO L87 Difference]: Start difference. First operand 2528 states and 8138 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 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) [2024-11-02 12:34:10,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:34:10,484 INFO L93 Difference]: Finished difference Result 3072 states and 9670 transitions. [2024-11-02 12:34:10,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-02 12:34:10,485 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 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 19 [2024-11-02 12:34:10,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:34:10,503 INFO L225 Difference]: With dead ends: 3072 [2024-11-02 12:34:10,504 INFO L226 Difference]: Without dead ends: 1344 [2024-11-02 12:34:10,508 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-02 12:34:10,509 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 95 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 12:34:10,512 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 39 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 12:34:10,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1344 states. [2024-11-02 12:34:10,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1344 to 1344. [2024-11-02 12:34:10,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1344 states, 1343 states have (on average 2.973938942665674) internal successors, (3994), 1343 states have internal predecessors, (3994), 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) [2024-11-02 12:34:10,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1344 states to 1344 states and 3994 transitions. [2024-11-02 12:34:10,560 INFO L78 Accepts]: Start accepts. Automaton has 1344 states and 3994 transitions. Word has length 19 [2024-11-02 12:34:10,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:34:10,561 INFO L471 AbstractCegarLoop]: Abstraction has 1344 states and 3994 transitions. [2024-11-02 12:34:10,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 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) [2024-11-02 12:34:10,561 INFO L276 IsEmpty]: Start isEmpty. Operand 1344 states and 3994 transitions. [2024-11-02 12:34:10,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-02 12:34:10,564 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:34:10,564 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:34:10,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-02 12:34:10,565 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-02 12:34:10,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:34:10,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1249534639, now seen corresponding path program 1 times [2024-11-02 12:34:10,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:34:10,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772621579] [2024-11-02 12:34:10,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:34:10,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:34:10,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:34:10,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:34:10,987 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:34:10,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772621579] [2024-11-02 12:34:10,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772621579] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:34:10,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:34:10,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-02 12:34:10,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144511231] [2024-11-02 12:34:10,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:34:10,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-02 12:34:10,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:34:10,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-02 12:34:10,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-02 12:34:10,989 INFO L87 Difference]: Start difference. First operand 1344 states and 3994 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 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) [2024-11-02 12:34:11,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:34:11,235 INFO L93 Difference]: Finished difference Result 1408 states and 4146 transitions. [2024-11-02 12:34:11,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 12:34:11,235 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 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 24 [2024-11-02 12:34:11,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:34:11,245 INFO L225 Difference]: With dead ends: 1408 [2024-11-02 12:34:11,246 INFO L226 Difference]: Without dead ends: 864 [2024-11-02 12:34:11,247 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2024-11-02 12:34:11,248 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 113 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 12:34:11,249 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 31 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 12:34:11,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2024-11-02 12:34:11,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 864. [2024-11-02 12:34:11,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 864 states, 863 states have (on average 2.959443800695249) internal successors, (2554), 863 states have internal predecessors, (2554), 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) [2024-11-02 12:34:11,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 864 states to 864 states and 2554 transitions. [2024-11-02 12:34:11,280 INFO L78 Accepts]: Start accepts. Automaton has 864 states and 2554 transitions. Word has length 24 [2024-11-02 12:34:11,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:34:11,280 INFO L471 AbstractCegarLoop]: Abstraction has 864 states and 2554 transitions. [2024-11-02 12:34:11,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 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) [2024-11-02 12:34:11,281 INFO L276 IsEmpty]: Start isEmpty. Operand 864 states and 2554 transitions. [2024-11-02 12:34:11,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-02 12:34:11,283 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:34:11,283 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:34:11,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-02 12:34:11,284 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-02 12:34:11,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:34:11,284 INFO L85 PathProgramCache]: Analyzing trace with hash -71366709, now seen corresponding path program 1 times [2024-11-02 12:34:11,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:34:11,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105546825] [2024-11-02 12:34:11,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:34:11,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:34:11,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:34:14,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:34:14,483 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:34:14,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105546825] [2024-11-02 12:34:14,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105546825] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:34:14,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:34:14,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-02 12:34:14,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860775773] [2024-11-02 12:34:14,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:34:14,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-02 12:34:14,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:34:14,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-02 12:34:14,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-02 12:34:14,486 INFO L87 Difference]: Start difference. First operand 864 states and 2554 transitions. Second operand has 10 states, 10 states have (on average 3.0) internal successors, (30), 9 states have internal predecessors, (30), 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) [2024-11-02 12:34:14,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:34:14,968 INFO L93 Difference]: Finished difference Result 1264 states and 3678 transitions. [2024-11-02 12:34:14,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-02 12:34:14,969 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.0) internal successors, (30), 9 states have internal predecessors, (30), 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 30 [2024-11-02 12:34:14,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:34:14,978 INFO L225 Difference]: With dead ends: 1264 [2024-11-02 12:34:14,978 INFO L226 Difference]: Without dead ends: 906 [2024-11-02 12:34:14,980 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2024-11-02 12:34:14,981 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 75 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-02 12:34:14,981 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 118 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-02 12:34:14,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 906 states. [2024-11-02 12:34:15,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 906 to 738. [2024-11-02 12:34:15,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 738 states, 737 states have (on average 2.903663500678426) internal successors, (2140), 737 states have internal predecessors, (2140), 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) [2024-11-02 12:34:15,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 738 states to 738 states and 2140 transitions. [2024-11-02 12:34:15,033 INFO L78 Accepts]: Start accepts. Automaton has 738 states and 2140 transitions. Word has length 30 [2024-11-02 12:34:15,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:34:15,034 INFO L471 AbstractCegarLoop]: Abstraction has 738 states and 2140 transitions. [2024-11-02 12:34:15,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.0) internal successors, (30), 9 states have internal predecessors, (30), 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) [2024-11-02 12:34:15,035 INFO L276 IsEmpty]: Start isEmpty. Operand 738 states and 2140 transitions. [2024-11-02 12:34:15,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-02 12:34:15,038 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:34:15,039 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:34:15,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-02 12:34:15,039 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-02 12:34:15,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:34:15,040 INFO L85 PathProgramCache]: Analyzing trace with hash 744145645, now seen corresponding path program 2 times [2024-11-02 12:34:15,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:34:15,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110430569] [2024-11-02 12:34:15,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:34:15,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:34:15,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-02 12:34:15,198 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-02 12:34:15,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-02 12:34:15,371 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-02 12:34:15,371 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-02 12:34:15,373 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (6 of 7 remaining) [2024-11-02 12:34:15,375 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (5 of 7 remaining) [2024-11-02 12:34:15,375 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (4 of 7 remaining) [2024-11-02 12:34:15,375 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2024-11-02 12:34:15,376 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2024-11-02 12:34:15,376 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 7 remaining) [2024-11-02 12:34:15,376 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2024-11-02 12:34:15,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-02 12:34:15,379 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1] [2024-11-02 12:34:15,485 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-02 12:34:15,486 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-02 12:34:15,491 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 12:34:15 BasicIcfg [2024-11-02 12:34:15,491 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-02 12:34:15,492 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-02 12:34:15,492 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-02 12:34:15,493 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-02 12:34:15,493 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:34:05" (3/4) ... [2024-11-02 12:34:15,495 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-02 12:34:15,497 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-02 12:34:15,497 INFO L158 Benchmark]: Toolchain (without parser) took 11466.15ms. Allocated memory was 167.8MB in the beginning and 490.7MB in the end (delta: 323.0MB). Free memory was 123.5MB in the beginning and 285.0MB in the end (delta: -161.5MB). Peak memory consumption was 164.6MB. Max. memory is 16.1GB. [2024-11-02 12:34:15,498 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 123.7MB. Free memory is still 62.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:34:15,500 INFO L158 Benchmark]: CACSL2BoogieTranslator took 805.21ms. Allocated memory is still 167.8MB. Free memory was 123.5MB in the beginning and 96.2MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-11-02 12:34:15,500 INFO L158 Benchmark]: Boogie Procedure Inliner took 90.30ms. Allocated memory is still 167.8MB. Free memory was 96.2MB in the beginning and 92.9MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-02 12:34:15,501 INFO L158 Benchmark]: Boogie Preprocessor took 80.61ms. Allocated memory is still 167.8MB. Free memory was 92.9MB in the beginning and 135.1MB in the end (delta: -42.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-02 12:34:15,501 INFO L158 Benchmark]: RCFGBuilder took 976.75ms. Allocated memory is still 167.8MB. Free memory was 135.0MB in the beginning and 76.0MB in the end (delta: 59.0MB). Peak memory consumption was 64.2MB. Max. memory is 16.1GB. [2024-11-02 12:34:15,502 INFO L158 Benchmark]: TraceAbstraction took 9495.96ms. Allocated memory was 167.8MB in the beginning and 490.7MB in the end (delta: 323.0MB). Free memory was 75.0MB in the beginning and 285.0MB in the end (delta: -210.0MB). Peak memory consumption was 112.9MB. Max. memory is 16.1GB. [2024-11-02 12:34:15,502 INFO L158 Benchmark]: Witness Printer took 4.51ms. Allocated memory is still 490.7MB. Free memory is still 285.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:34:15,503 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 123.7MB. Free memory is still 62.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 805.21ms. Allocated memory is still 167.8MB. Free memory was 123.5MB in the beginning and 96.2MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 90.30ms. Allocated memory is still 167.8MB. Free memory was 96.2MB in the beginning and 92.9MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 80.61ms. Allocated memory is still 167.8MB. Free memory was 92.9MB in the beginning and 135.1MB in the end (delta: -42.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 976.75ms. Allocated memory is still 167.8MB. Free memory was 135.0MB in the beginning and 76.0MB in the end (delta: 59.0MB). Peak memory consumption was 64.2MB. Max. memory is 16.1GB. * TraceAbstraction took 9495.96ms. Allocated memory was 167.8MB in the beginning and 490.7MB in the end (delta: 323.0MB). Free memory was 75.0MB in the beginning and 285.0MB in the end (delta: -210.0MB). Peak memory consumption was 112.9MB. Max. memory is 16.1GB. * Witness Printer took 4.51ms. Allocated memory is still 490.7MB. Free memory is still 285.0MB. 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 - UnprovableResult [Line: 17]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 17. Possible FailurePath: [L709] 0 int __unbuffered_cnt = 0; [L711] 0 int __unbuffered_p0_EAX = 0; [L713] 0 int __unbuffered_p1_EAX = 0; [L715] 0 int __unbuffered_p1_EBX = 0; [L716] 0 _Bool main$tmp_guard0; [L717] 0 _Bool main$tmp_guard1; [L719] 0 int x = 0; [L721] 0 int y = 0; [L722] 0 _Bool y$flush_delayed; [L723] 0 int y$mem_tmp; [L724] 0 _Bool y$r_buff0_thd0; [L725] 0 _Bool y$r_buff0_thd1; [L726] 0 _Bool y$r_buff0_thd2; [L727] 0 _Bool y$r_buff0_thd3; [L728] 0 _Bool y$r_buff1_thd0; [L729] 0 _Bool y$r_buff1_thd1; [L730] 0 _Bool y$r_buff1_thd2; [L731] 0 _Bool y$r_buff1_thd3; [L732] 0 _Bool y$read_delayed; [L733] 0 int *y$read_delayed_var; [L734] 0 int y$w_buff0; [L735] 0 _Bool y$w_buff0_used; [L736] 0 int y$w_buff1; [L737] 0 _Bool y$w_buff1_used; [L738] 0 _Bool weak$$choice0; [L739] 0 _Bool weak$$choice2; [L833] 0 pthread_t t1687; [L834] FCALL, FORK 0 pthread_create(&t1687, ((void *)0), P0, ((void *)0)) VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, t1687=-1, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=0] [L835] 0 pthread_t t1688; [L836] FCALL, FORK 0 pthread_create(&t1688, ((void *)0), P1, ((void *)0)) VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, t1687=-1, t1688=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=0] [L837] 0 pthread_t t1689; [L838] FCALL, FORK 0 pthread_create(&t1689, ((void *)0), P2, ((void *)0)) VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, t1687=-1, t1688=0, t1689=1, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=0] [L763] 2 y$w_buff1 = y$w_buff0 [L764] 2 y$w_buff0 = 2 [L765] 2 y$w_buff1_used = y$w_buff0_used [L766] 2 y$w_buff0_used = (_Bool)1 [L767] CALL 2 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L18] COND FALSE 2 !(!expression) [L767] RET 2 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L768] 2 y$r_buff1_thd0 = y$r_buff0_thd0 [L769] 2 y$r_buff1_thd1 = y$r_buff0_thd1 [L770] 2 y$r_buff1_thd2 = y$r_buff0_thd2 [L771] 2 y$r_buff1_thd3 = y$r_buff0_thd3 [L772] 2 y$r_buff0_thd2 = (_Bool)1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0] [L775] 2 weak$$choice0 = __VERIFIER_nondet_bool() [L776] 2 weak$$choice2 = __VERIFIER_nondet_bool() [L777] 2 y$flush_delayed = weak$$choice2 [L778] 2 y$mem_tmp = y [L779] 2 y = !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff1) [L780] 2 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0)) [L781] 2 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1)) [L782] 2 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used)) [L783] 2 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L784] 2 y$r_buff0_thd2 = weak$$choice2 ? y$r_buff0_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2)) [L785] 2 y$r_buff1_thd2 = weak$$choice2 ? y$r_buff1_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L786] 2 __unbuffered_p1_EAX = y [L787] 2 y = y$flush_delayed ? y$mem_tmp : y [L788] 2 y$flush_delayed = (_Bool)0 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0] [L791] 2 __unbuffered_p1_EBX = x VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0] [L808] 3 x = 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0] [L743] 1 __unbuffered_p0_EAX = x VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0] [L746] 1 y = 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=1] [L749] 1 y = y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd1 ? y$w_buff1 : y) [L750] 1 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used [L751] 1 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$w_buff1_used [L752] 1 y$r_buff0_thd1 = y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1 [L753] 1 y$r_buff1_thd1 = y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$r_buff1_thd1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=1] [L756] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=1] [L794] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L795] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L796] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L797] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L798] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=2] [L801] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=2] [L811] 3 y = y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L812] 3 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L813] 3 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L814] 3 y$r_buff0_thd3 = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L815] 3 y$r_buff1_thd3 = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=2] [L818] 3 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=2] [L840] 0 main$tmp_guard0 = __unbuffered_cnt == 3 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1687=-1, t1688=0, t1689=1, weak$$choice0=1, weak$$choice2=1, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=2] [L842] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L842] RET 0 assume_abort_if_not(main$tmp_guard0) [L844] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L845] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L846] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L847] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L848] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1687=-1, t1688=0, t1689=1, weak$$choice0=1, weak$$choice2=1, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=2] [L851] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L852] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L853] 0 y$flush_delayed = weak$$choice2 [L854] 0 y$mem_tmp = y [L855] 0 y = !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L856] 0 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L857] 0 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L858] 0 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L859] 0 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L860] 0 y$r_buff0_thd0 = weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L861] 0 y$r_buff1_thd0 = weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L862] 0 main$tmp_guard1 = !(y == 2 && __unbuffered_p0_EAX == 1 && __unbuffered_p1_EAX == 2 && __unbuffered_p1_EBX == 0) [L863] 0 y = y$flush_delayed ? y$mem_tmp : y [L864] 0 y$flush_delayed = (_Bool)0 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1687=-1, t1688=0, t1689=1, weak$$choice0=0, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=2] [L866] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] CALL 0 reach_error() [L17] COND FALSE 0 !(0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=2] [L17] 0 __assert_fail ("0", "rfi006_pso.oepc_pso.opt_tso.oepc_tso.opt.c", 8, __extension__ __PRETTY_FUNCTION__) VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=2] - UnprovableResult [Line: 17]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 831]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 836]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 834]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 838]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 68 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 9.2s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 383 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 383 mSDsluCounter, 261 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 180 mSDsCounter, 30 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 473 IncrementalHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 30 mSolverCounterUnsat, 81 mSDtfsCounter, 473 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5560occurred in iteration=0, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 6 MinimizatonAttempts, 168 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 4.6s InterpolantComputationTime, 139 NumberOfCodeBlocks, 139 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 103 ConstructedInterpolants, 0 QuantifiedInterpolants, 677 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-02 12:34:15,543 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737f834f-03a0-42a0-8902-c2d26d33236c/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737f834f-03a0-42a0-8902-c2d26d33236c/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737f834f-03a0-42a0-8902-c2d26d33236c/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737f834f-03a0-42a0-8902-c2d26d33236c/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737f834f-03a0-42a0-8902-c2d26d33236c/bin/utaipan-verify-DbMuA5NWw2/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/rfi006_pso.oepc_pso.opt_tso.oepc_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737f834f-03a0-42a0-8902-c2d26d33236c/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737f834f-03a0-42a0-8902-c2d26d33236c/bin/utaipan-verify-DbMuA5NWw2 --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 596bf38d5c1bddbb7fa933c2910678824d7396d44da5246db401a53a5b4ba843 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:34:17,998 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:34:18,092 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737f834f-03a0-42a0-8902-c2d26d33236c/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2024-11-02 12:34:18,097 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:34:18,098 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:34:18,136 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:34:18,136 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:34:18,137 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:34:18,137 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:34:18,140 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:34:18,140 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:34:18,141 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:34:18,141 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:34:18,143 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:34:18,144 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:34:18,144 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:34:18,145 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-02 12:34:18,145 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-02 12:34:18,146 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:34:18,146 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 12:34:18,147 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 12:34:18,150 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 12:34:18,151 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:34:18,151 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-02 12:34:18,151 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-02 12:34:18,151 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-02 12:34:18,152 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:34:18,152 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-02 12:34:18,152 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-02 12:34:18,153 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:34:18,154 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-02 12:34:18,154 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-02 12:34:18,154 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 12:34:18,155 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:34:18,156 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:34:18,156 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-02 12:34:18,156 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:34:18,157 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:34:18,157 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:34:18,158 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:34:18,158 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:34:18,158 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-02 12:34:18,158 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-02 12:34:18,165 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:34:18,166 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:34:18,166 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:34:18,166 INFO L153 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737f834f-03a0-42a0-8902-c2d26d33236c/bin/utaipan-verify-DbMuA5NWw2/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737f834f-03a0-42a0-8902-c2d26d33236c/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 596bf38d5c1bddbb7fa933c2910678824d7396d44da5246db401a53a5b4ba843 [2024-11-02 12:34:18,566 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:34:18,597 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:34:18,601 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:34:18,603 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:34:18,604 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:34:18,606 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737f834f-03a0-42a0-8902-c2d26d33236c/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/pthread-wmm/rfi006_pso.oepc_pso.opt_tso.oepc_tso.opt.i Unable to find full path for "g++" [2024-11-02 12:34:20,838 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:34:21,139 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:34:21,139 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737f834f-03a0-42a0-8902-c2d26d33236c/sv-benchmarks/c/pthread-wmm/rfi006_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-11-02 12:34:21,157 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737f834f-03a0-42a0-8902-c2d26d33236c/bin/utaipan-verify-DbMuA5NWw2/data/8bd3042c8/ee1bb1d8084b46aa8dc17e8ef988edf3/FLAG0c7392cc2 [2024-11-02 12:34:21,171 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737f834f-03a0-42a0-8902-c2d26d33236c/bin/utaipan-verify-DbMuA5NWw2/data/8bd3042c8/ee1bb1d8084b46aa8dc17e8ef988edf3 [2024-11-02 12:34:21,173 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:34:21,175 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:34:21,176 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:34:21,176 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:34:21,182 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:34:21,183 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:34:21" (1/1) ... [2024-11-02 12:34:21,184 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@150fec88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:21, skipping insertion in model container [2024-11-02 12:34:21,185 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:34:21" (1/1) ... [2024-11-02 12:34:21,238 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:34:21,835 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:34:21,856 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:34:21,942 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:34:21,986 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:34:21,986 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:21 WrapperNode [2024-11-02 12:34:21,987 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:34:21,988 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:34:21,988 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:34:21,988 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:34:21,999 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:21" (1/1) ... [2024-11-02 12:34:22,030 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:21" (1/1) ... [2024-11-02 12:34:22,081 INFO L138 Inliner]: procedures = 176, calls = 43, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 161 [2024-11-02 12:34:22,082 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:34:22,082 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:34:22,083 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:34:22,083 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:34:22,094 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:21" (1/1) ... [2024-11-02 12:34:22,095 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:21" (1/1) ... [2024-11-02 12:34:22,100 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:21" (1/1) ... [2024-11-02 12:34:22,100 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:21" (1/1) ... [2024-11-02 12:34:22,113 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:21" (1/1) ... [2024-11-02 12:34:22,118 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:21" (1/1) ... [2024-11-02 12:34:22,125 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:21" (1/1) ... [2024-11-02 12:34:22,126 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:21" (1/1) ... [2024-11-02 12:34:22,134 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:34:22,138 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:34:22,138 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:34:22,139 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:34:22,139 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:21" (1/1) ... [2024-11-02 12:34:22,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:34:22,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737f834f-03a0-42a0-8902-c2d26d33236c/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:34:22,193 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737f834f-03a0-42a0-8902-c2d26d33236c/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:34:22,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737f834f-03a0-42a0-8902-c2d26d33236c/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:34:22,246 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-02 12:34:22,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:34:22,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-02 12:34:22,247 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-02 12:34:22,247 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-02 12:34:22,247 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-02 12:34:22,247 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-02 12:34:22,248 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-02 12:34:22,249 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-02 12:34:22,249 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-02 12:34:22,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:34:22,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:34:22,251 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-02 12:34:22,427 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:34:22,433 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:34:22,915 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-02 12:34:22,915 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:34:23,302 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:34:23,305 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-02 12:34:23,306 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:34:23 BoogieIcfgContainer [2024-11-02 12:34:23,306 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:34:23,308 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:34:23,310 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:34:23,313 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:34:23,314 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:34:21" (1/3) ... [2024-11-02 12:34:23,315 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@464ee794 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:34:23, skipping insertion in model container [2024-11-02 12:34:23,316 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:21" (2/3) ... [2024-11-02 12:34:23,317 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@464ee794 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:34:23, skipping insertion in model container [2024-11-02 12:34:23,318 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:34:23" (3/3) ... [2024-11-02 12:34:23,319 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi006_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-11-02 12:34:23,339 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:34:23,339 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-11-02 12:34:23,339 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-02 12:34:23,404 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-02 12:34:23,454 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 52 places, 44 transitions, 100 flow [2024-11-02 12:34:23,829 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 5560 states, 5555 states have (on average 3.621422142214221) internal successors, (20117), 5559 states have internal predecessors, (20117), 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) [2024-11-02 12:34:23,867 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:34:23,873 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;@65b02d45, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:34:23,873 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-02 12:34:23,891 INFO L276 IsEmpty]: Start isEmpty. Operand has 5560 states, 5555 states have (on average 3.621422142214221) internal successors, (20117), 5559 states have internal predecessors, (20117), 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) [2024-11-02 12:34:23,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-02 12:34:23,898 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:34:23,898 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-02 12:34:23,899 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-02 12:34:23,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:34:23,905 INFO L85 PathProgramCache]: Analyzing trace with hash -170698376, now seen corresponding path program 1 times [2024-11-02 12:34:23,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-02 12:34:23,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [693048334] [2024-11-02 12:34:23,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:34:23,919 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 [2024-11-02 12:34:23,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737f834f-03a0-42a0-8902-c2d26d33236c/bin/utaipan-verify-DbMuA5NWw2/mathsat [2024-11-02 12:34:23,922 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737f834f-03a0-42a0-8902-c2d26d33236c/bin/utaipan-verify-DbMuA5NWw2/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) [2024-11-02 12:34:23,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737f834f-03a0-42a0-8902-c2d26d33236c/bin/utaipan-verify-DbMuA5NWw2/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 [2024-11-02 12:34:24,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:34:24,050 INFO L255 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-02 12:34:24,058 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:34:24,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:34:24,107 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:34:24,107 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-02 12:34:24,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [693048334] [2024-11-02 12:34:24,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [693048334] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:34:24,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:34:24,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-02 12:34:24,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886660938] [2024-11-02 12:34:24,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:34:24,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:34:24,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-02 12:34:24,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:34:24,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:34:24,166 INFO L87 Difference]: Start difference. First operand has 5560 states, 5555 states have (on average 3.621422142214221) internal successors, (20117), 5559 states have internal predecessors, (20117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2024-11-02 12:34:24,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:34:24,525 INFO L93 Difference]: Finished difference Result 6652 states and 23811 transitions. [2024-11-02 12:34:24,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:34:24,528 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2024-11-02 12:34:24,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:34:24,640 INFO L225 Difference]: With dead ends: 6652 [2024-11-02 12:34:24,640 INFO L226 Difference]: Without dead ends: 4496 [2024-11-02 12:34:24,656 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:34:24,659 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 22 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:34:24,663 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 29 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:34:24,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4496 states. [2024-11-02 12:34:24,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4496 to 4496. [2024-11-02 12:34:24,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4496 states, 4494 states have (on average 3.4650645304850913) internal successors, (15572), 4495 states have internal predecessors, (15572), 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) [2024-11-02 12:34:25,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4496 states to 4496 states and 15572 transitions. [2024-11-02 12:34:25,060 INFO L78 Accepts]: Start accepts. Automaton has 4496 states and 15572 transitions. Word has length 6 [2024-11-02 12:34:25,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:34:25,064 INFO L471 AbstractCegarLoop]: Abstraction has 4496 states and 15572 transitions. [2024-11-02 12:34:25,064 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2024-11-02 12:34:25,064 INFO L276 IsEmpty]: Start isEmpty. Operand 4496 states and 15572 transitions. [2024-11-02 12:34:25,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-02 12:34:25,079 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:34:25,079 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:34:25,089 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737f834f-03a0-42a0-8902-c2d26d33236c/bin/utaipan-verify-DbMuA5NWw2/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)] Ended with exit code 0 [2024-11-02 12:34:25,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737f834f-03a0-42a0-8902-c2d26d33236c/bin/utaipan-verify-DbMuA5NWw2/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 [2024-11-02 12:34:25,280 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-02 12:34:25,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:34:25,284 INFO L85 PathProgramCache]: Analyzing trace with hash -667228732, now seen corresponding path program 1 times [2024-11-02 12:34:25,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-02 12:34:25,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1469219838] [2024-11-02 12:34:25,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:34:25,289 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 [2024-11-02 12:34:25,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737f834f-03a0-42a0-8902-c2d26d33236c/bin/utaipan-verify-DbMuA5NWw2/mathsat [2024-11-02 12:34:25,293 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737f834f-03a0-42a0-8902-c2d26d33236c/bin/utaipan-verify-DbMuA5NWw2/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) [2024-11-02 12:34:25,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737f834f-03a0-42a0-8902-c2d26d33236c/bin/utaipan-verify-DbMuA5NWw2/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 [2024-11-02 12:34:25,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:34:25,435 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-02 12:34:25,436 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:34:25,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:34:25,519 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:34:25,520 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-02 12:34:25,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1469219838] [2024-11-02 12:34:25,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1469219838] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:34:25,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:34:25,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 12:34:25,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300388570] [2024-11-02 12:34:25,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:34:25,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 12:34:25,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-02 12:34:25,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 12:34:25,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-02 12:34:25,527 INFO L87 Difference]: Start difference. First operand 4496 states and 15572 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 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) [2024-11-02 12:34:25,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:34:25,793 INFO L93 Difference]: Finished difference Result 6872 states and 23254 transitions. [2024-11-02 12:34:25,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 12:34:25,794 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 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 15 [2024-11-02 12:34:25,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:34:25,827 INFO L225 Difference]: With dead ends: 6872 [2024-11-02 12:34:25,827 INFO L226 Difference]: Without dead ends: 3176 [2024-11-02 12:34:25,838 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-02 12:34:25,840 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 57 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:34:25,841 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 36 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:34:25,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3176 states. [2024-11-02 12:34:25,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3176 to 3176. [2024-11-02 12:34:26,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3176 states, 3174 states have (on average 3.242596093257719) internal successors, (10292), 3175 states have internal predecessors, (10292), 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) [2024-11-02 12:34:26,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3176 states to 3176 states and 10292 transitions. [2024-11-02 12:34:26,035 INFO L78 Accepts]: Start accepts. Automaton has 3176 states and 10292 transitions. Word has length 15 [2024-11-02 12:34:26,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:34:26,038 INFO L471 AbstractCegarLoop]: Abstraction has 3176 states and 10292 transitions. [2024-11-02 12:34:26,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 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) [2024-11-02 12:34:26,039 INFO L276 IsEmpty]: Start isEmpty. Operand 3176 states and 10292 transitions. [2024-11-02 12:34:26,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-02 12:34:26,043 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:34:26,043 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:34:26,048 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737f834f-03a0-42a0-8902-c2d26d33236c/bin/utaipan-verify-DbMuA5NWw2/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 [2024-11-02 12:34:26,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737f834f-03a0-42a0-8902-c2d26d33236c/bin/utaipan-verify-DbMuA5NWw2/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 [2024-11-02 12:34:26,246 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-02 12:34:26,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:34:26,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1357170426, now seen corresponding path program 1 times [2024-11-02 12:34:26,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-02 12:34:26,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [891445338] [2024-11-02 12:34:26,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:34:26,253 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 [2024-11-02 12:34:26,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737f834f-03a0-42a0-8902-c2d26d33236c/bin/utaipan-verify-DbMuA5NWw2/mathsat [2024-11-02 12:34:26,256 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737f834f-03a0-42a0-8902-c2d26d33236c/bin/utaipan-verify-DbMuA5NWw2/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) [2024-11-02 12:34:26,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737f834f-03a0-42a0-8902-c2d26d33236c/bin/utaipan-verify-DbMuA5NWw2/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 [2024-11-02 12:34:26,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:34:26,362 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-02 12:34:26,363 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:34:26,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:34:26,411 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:34:26,411 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-02 12:34:26,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [891445338] [2024-11-02 12:34:26,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [891445338] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:34:26,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:34:26,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-02 12:34:26,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647629794] [2024-11-02 12:34:26,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:34:26,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-02 12:34:26,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-02 12:34:26,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-02 12:34:26,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-02 12:34:26,476 INFO L87 Difference]: Start difference. First operand 3176 states and 10292 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 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) [2024-11-02 12:34:26,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:34:26,713 INFO L93 Difference]: Finished difference Result 3924 states and 12424 transitions. [2024-11-02 12:34:26,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-02 12:34:26,714 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 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 19 [2024-11-02 12:34:26,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:34:26,731 INFO L225 Difference]: With dead ends: 3924 [2024-11-02 12:34:26,731 INFO L226 Difference]: Without dead ends: 1548 [2024-11-02 12:34:26,738 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-02 12:34:26,739 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 95 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 12:34:26,740 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 54 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 12:34:26,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1548 states. [2024-11-02 12:34:26,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1548 to 1548. [2024-11-02 12:34:26,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1548 states, 1546 states have (on average 2.9715394566623545) internal successors, (4594), 1547 states have internal predecessors, (4594), 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) [2024-11-02 12:34:26,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1548 states to 1548 states and 4594 transitions. [2024-11-02 12:34:26,792 INFO L78 Accepts]: Start accepts. Automaton has 1548 states and 4594 transitions. Word has length 19 [2024-11-02 12:34:26,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:34:26,792 INFO L471 AbstractCegarLoop]: Abstraction has 1548 states and 4594 transitions. [2024-11-02 12:34:26,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 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) [2024-11-02 12:34:26,793 INFO L276 IsEmpty]: Start isEmpty. Operand 1548 states and 4594 transitions. [2024-11-02 12:34:26,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-02 12:34:26,796 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:34:26,796 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:34:26,812 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737f834f-03a0-42a0-8902-c2d26d33236c/bin/utaipan-verify-DbMuA5NWw2/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)] Forceful destruction successful, exit code 0 [2024-11-02 12:34:27,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737f834f-03a0-42a0-8902-c2d26d33236c/bin/utaipan-verify-DbMuA5NWw2/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 [2024-11-02 12:34:27,010 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-02 12:34:27,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:34:27,011 INFO L85 PathProgramCache]: Analyzing trace with hash 181163945, now seen corresponding path program 1 times [2024-11-02 12:34:27,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-02 12:34:27,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1214740974] [2024-11-02 12:34:27,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:34:27,012 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 [2024-11-02 12:34:27,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737f834f-03a0-42a0-8902-c2d26d33236c/bin/utaipan-verify-DbMuA5NWw2/mathsat [2024-11-02 12:34:27,015 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737f834f-03a0-42a0-8902-c2d26d33236c/bin/utaipan-verify-DbMuA5NWw2/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) [2024-11-02 12:34:27,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737f834f-03a0-42a0-8902-c2d26d33236c/bin/utaipan-verify-DbMuA5NWw2/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 [2024-11-02 12:34:27,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:34:27,139 INFO L255 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-02 12:34:27,143 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:34:27,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:34:27,228 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:34:27,228 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-02 12:34:27,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1214740974] [2024-11-02 12:34:27,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1214740974] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:34:27,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:34:27,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-02 12:34:27,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066245823] [2024-11-02 12:34:27,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:34:27,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-02 12:34:27,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-02 12:34:27,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-02 12:34:27,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-02 12:34:27,230 INFO L87 Difference]: Start difference. First operand 1548 states and 4594 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 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) [2024-11-02 12:34:27,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:34:27,483 INFO L93 Difference]: Finished difference Result 1636 states and 4806 transitions. [2024-11-02 12:34:27,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 12:34:27,484 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 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 24 [2024-11-02 12:34:27,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:34:27,493 INFO L225 Difference]: With dead ends: 1636 [2024-11-02 12:34:27,494 INFO L226 Difference]: Without dead ends: 888 [2024-11-02 12:34:27,496 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-02 12:34:27,497 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 113 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 12:34:27,497 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 83 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 12:34:27,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 888 states. [2024-11-02 12:34:27,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 888 to 888. [2024-11-02 12:34:27,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 888 states, 886 states have (on average 2.950338600451467) internal successors, (2614), 887 states have internal predecessors, (2614), 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) [2024-11-02 12:34:27,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 888 states to 888 states and 2614 transitions. [2024-11-02 12:34:27,529 INFO L78 Accepts]: Start accepts. Automaton has 888 states and 2614 transitions. Word has length 24 [2024-11-02 12:34:27,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:34:27,530 INFO L471 AbstractCegarLoop]: Abstraction has 888 states and 2614 transitions. [2024-11-02 12:34:27,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 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) [2024-11-02 12:34:27,530 INFO L276 IsEmpty]: Start isEmpty. Operand 888 states and 2614 transitions. [2024-11-02 12:34:27,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-02 12:34:27,533 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:34:27,533 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:34:27,537 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737f834f-03a0-42a0-8902-c2d26d33236c/bin/utaipan-verify-DbMuA5NWw2/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 [2024-11-02 12:34:27,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737f834f-03a0-42a0-8902-c2d26d33236c/bin/utaipan-verify-DbMuA5NWw2/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 [2024-11-02 12:34:27,734 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-02 12:34:27,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:34:27,734 INFO L85 PathProgramCache]: Analyzing trace with hash 789914125, now seen corresponding path program 1 times [2024-11-02 12:34:27,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-02 12:34:27,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1716144616] [2024-11-02 12:34:27,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:34:27,735 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 [2024-11-02 12:34:27,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737f834f-03a0-42a0-8902-c2d26d33236c/bin/utaipan-verify-DbMuA5NWw2/mathsat [2024-11-02 12:34:27,738 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737f834f-03a0-42a0-8902-c2d26d33236c/bin/utaipan-verify-DbMuA5NWw2/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) [2024-11-02 12:34:27,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737f834f-03a0-42a0-8902-c2d26d33236c/bin/utaipan-verify-DbMuA5NWw2/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 [2024-11-02 12:34:27,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:34:27,910 INFO L255 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-02 12:34:27,911 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:34:27,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:34:27,978 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:34:27,978 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-02 12:34:27,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1716144616] [2024-11-02 12:34:27,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1716144616] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:34:27,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:34:27,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-02 12:34:27,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591911976] [2024-11-02 12:34:27,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:34:27,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:34:27,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-02 12:34:27,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:34:27,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:34:27,981 INFO L87 Difference]: Start difference. First operand 888 states and 2614 transitions. Second operand has 3 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 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) [2024-11-02 12:34:28,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:34:28,037 INFO L93 Difference]: Finished difference Result 888 states and 2614 transitions. [2024-11-02 12:34:28,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:34:28,042 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 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 30 [2024-11-02 12:34:28,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:34:28,055 INFO L225 Difference]: With dead ends: 888 [2024-11-02 12:34:28,056 INFO L226 Difference]: Without dead ends: 864 [2024-11-02 12:34:28,057 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:34:28,058 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 6 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-02 12:34:28,058 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 14 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 12:34:28,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2024-11-02 12:34:28,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 864. [2024-11-02 12:34:28,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 864 states, 863 states have (on average 2.959443800695249) internal successors, (2554), 863 states have internal predecessors, (2554), 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) [2024-11-02 12:34:28,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 864 states to 864 states and 2554 transitions. [2024-11-02 12:34:28,097 INFO L78 Accepts]: Start accepts. Automaton has 864 states and 2554 transitions. Word has length 30 [2024-11-02 12:34:28,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:34:28,098 INFO L471 AbstractCegarLoop]: Abstraction has 864 states and 2554 transitions. [2024-11-02 12:34:28,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 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) [2024-11-02 12:34:28,099 INFO L276 IsEmpty]: Start isEmpty. Operand 864 states and 2554 transitions. [2024-11-02 12:34:28,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-02 12:34:28,102 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:34:28,102 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:34:28,107 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737f834f-03a0-42a0-8902-c2d26d33236c/bin/utaipan-verify-DbMuA5NWw2/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 [2024-11-02 12:34:28,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737f834f-03a0-42a0-8902-c2d26d33236c/bin/utaipan-verify-DbMuA5NWw2/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 [2024-11-02 12:34:28,303 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-02 12:34:28,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:34:28,304 INFO L85 PathProgramCache]: Analyzing trace with hash 789915711, now seen corresponding path program 1 times [2024-11-02 12:34:28,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-02 12:34:28,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1181621284] [2024-11-02 12:34:28,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:34:28,305 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 [2024-11-02 12:34:28,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737f834f-03a0-42a0-8902-c2d26d33236c/bin/utaipan-verify-DbMuA5NWw2/mathsat [2024-11-02 12:34:28,307 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737f834f-03a0-42a0-8902-c2d26d33236c/bin/utaipan-verify-DbMuA5NWw2/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) [2024-11-02 12:34:28,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737f834f-03a0-42a0-8902-c2d26d33236c/bin/utaipan-verify-DbMuA5NWw2/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 [2024-11-02 12:34:28,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:34:28,459 INFO L255 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-02 12:34:28,461 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:34:28,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:34:28,930 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:34:28,930 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-02 12:34:28,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1181621284] [2024-11-02 12:34:28,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1181621284] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:34:28,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:34:28,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-02 12:34:28,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832136419] [2024-11-02 12:34:28,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:34:28,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-02 12:34:28,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-02 12:34:28,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-02 12:34:28,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-02 12:34:28,933 INFO L87 Difference]: Start difference. First operand 864 states and 2554 transitions. Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 5 states have internal predecessors, (30), 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) [2024-11-02 12:34:29,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:34:29,155 INFO L93 Difference]: Finished difference Result 1248 states and 3650 transitions. [2024-11-02 12:34:29,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 12:34:29,155 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 5 states have internal predecessors, (30), 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 30 [2024-11-02 12:34:29,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:34:29,163 INFO L225 Difference]: With dead ends: 1248 [2024-11-02 12:34:29,163 INFO L226 Difference]: Without dead ends: 614 [2024-11-02 12:34:29,165 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-02 12:34:29,166 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 35 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 12:34:29,166 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 51 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 12:34:29,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 614 states. [2024-11-02 12:34:29,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 614 to 614. [2024-11-02 12:34:29,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 614 states, 613 states have (on average 2.877650897226754) internal successors, (1764), 613 states have internal predecessors, (1764), 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) [2024-11-02 12:34:29,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 614 states to 614 states and 1764 transitions. [2024-11-02 12:34:29,200 INFO L78 Accepts]: Start accepts. Automaton has 614 states and 1764 transitions. Word has length 30 [2024-11-02 12:34:29,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:34:29,201 INFO L471 AbstractCegarLoop]: Abstraction has 614 states and 1764 transitions. [2024-11-02 12:34:29,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 5 states have internal predecessors, (30), 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) [2024-11-02 12:34:29,201 INFO L276 IsEmpty]: Start isEmpty. Operand 614 states and 1764 transitions. [2024-11-02 12:34:29,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-02 12:34:29,203 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:34:29,203 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:34:29,208 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737f834f-03a0-42a0-8902-c2d26d33236c/bin/utaipan-verify-DbMuA5NWw2/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)] Forceful destruction successful, exit code 0 [2024-11-02 12:34:29,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737f834f-03a0-42a0-8902-c2d26d33236c/bin/utaipan-verify-DbMuA5NWw2/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 [2024-11-02 12:34:29,404 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-02 12:34:29,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:34:29,406 INFO L85 PathProgramCache]: Analyzing trace with hash 1787036291, now seen corresponding path program 2 times [2024-11-02 12:34:29,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-02 12:34:29,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1730269121] [2024-11-02 12:34:29,407 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-02 12:34:29,407 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 [2024-11-02 12:34:29,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737f834f-03a0-42a0-8902-c2d26d33236c/bin/utaipan-verify-DbMuA5NWw2/mathsat [2024-11-02 12:34:29,408 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737f834f-03a0-42a0-8902-c2d26d33236c/bin/utaipan-verify-DbMuA5NWw2/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) [2024-11-02 12:34:29,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737f834f-03a0-42a0-8902-c2d26d33236c/bin/utaipan-verify-DbMuA5NWw2/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 (8)] Waiting until timeout for monitored process [2024-11-02 12:34:29,550 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-02 12:34:29,566 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-02 12:34:29,570 INFO L255 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-02 12:34:29,573 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:34:29,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:34:29,957 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:34:29,958 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-02 12:34:29,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1730269121] [2024-11-02 12:34:29,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1730269121] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:34:29,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:34:29,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-02 12:34:29,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775423715] [2024-11-02 12:34:29,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:34:29,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-02 12:34:29,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-02 12:34:29,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-02 12:34:29,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-02 12:34:29,960 INFO L87 Difference]: Start difference. First operand 614 states and 1764 transitions. Second operand has 8 states, 8 states have (on average 3.75) internal successors, (30), 7 states have internal predecessors, (30), 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) [2024-11-02 12:34:30,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:34:30,203 INFO L93 Difference]: Finished difference Result 910 states and 2582 transitions. [2024-11-02 12:34:30,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 12:34:30,204 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 7 states have internal predecessors, (30), 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 30 [2024-11-02 12:34:30,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:34:30,213 INFO L225 Difference]: With dead ends: 910 [2024-11-02 12:34:30,213 INFO L226 Difference]: Without dead ends: 720 [2024-11-02 12:34:30,214 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-02 12:34:30,216 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 42 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 12:34:30,216 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 75 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 12:34:30,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 720 states. [2024-11-02 12:34:30,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 720 to 560. [2024-11-02 12:34:30,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 559 states have (on average 2.817531305903399) internal successors, (1575), 559 states have internal predecessors, (1575), 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) [2024-11-02 12:34:30,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 1575 transitions. [2024-11-02 12:34:30,242 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 1575 transitions. Word has length 30 [2024-11-02 12:34:30,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:34:30,243 INFO L471 AbstractCegarLoop]: Abstraction has 560 states and 1575 transitions. [2024-11-02 12:34:30,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 7 states have internal predecessors, (30), 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) [2024-11-02 12:34:30,244 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 1575 transitions. [2024-11-02 12:34:30,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-02 12:34:30,247 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:34:30,247 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:34:30,253 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737f834f-03a0-42a0-8902-c2d26d33236c/bin/utaipan-verify-DbMuA5NWw2/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 (8)] Forceful destruction successful, exit code 0 [2024-11-02 12:34:30,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737f834f-03a0-42a0-8902-c2d26d33236c/bin/utaipan-verify-DbMuA5NWw2/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 [2024-11-02 12:34:30,449 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-02 12:34:30,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:34:30,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1638333059, now seen corresponding path program 3 times [2024-11-02 12:34:30,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-02 12:34:30,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1450259116] [2024-11-02 12:34:30,451 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-02 12:34:30,451 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 [2024-11-02 12:34:30,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737f834f-03a0-42a0-8902-c2d26d33236c/bin/utaipan-verify-DbMuA5NWw2/mathsat [2024-11-02 12:34:30,454 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737f834f-03a0-42a0-8902-c2d26d33236c/bin/utaipan-verify-DbMuA5NWw2/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) [2024-11-02 12:34:30,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737f834f-03a0-42a0-8902-c2d26d33236c/bin/utaipan-verify-DbMuA5NWw2/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 (9)] Waiting until timeout for monitored process