./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/mix034_power.oepc_power.opt_pso.oepc_rmo.oepc_rmo.opt_tso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix034_power.oepc_power.opt_pso.oepc_rmo.oepc_rmo.opt_tso.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS --witnessprinter.witness.filename witness.graphml --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 3a8f8518887bc2e5e0d6d71e32a92b54f9a899d1e11c58bdb579bc81d5f31bb3 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 08:09:21,595 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:09:21,598 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:09:21,640 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:09:21,641 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:09:21,644 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:09:21,647 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:09:21,651 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:09:21,653 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:09:21,658 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:09:21,659 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:09:21,660 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:09:21,660 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:09:21,661 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:09:21,662 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:09:21,663 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:09:21,664 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:09:21,665 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:09:21,667 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:09:21,668 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:09:21,670 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:09:21,674 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:09:21,677 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:09:21,678 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:09:21,692 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:09:21,693 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:09:21,693 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:09:21,694 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:09:21,694 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:09:21,695 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:09:21,696 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:09:21,696 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:09:21,697 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:09:21,698 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:09:21,699 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:09:21,700 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:09:21,700 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:09:21,701 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:09:21,701 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:09:21,702 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:09:21,705 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:09:21,707 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-11-19 08:09:21,751 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:09:21,752 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:09:21,752 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:09:21,753 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:09:21,754 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:09:21,754 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:09:21,755 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:09:21,755 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:09:21,755 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:09:21,755 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:09:21,756 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:09:21,756 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:09:21,757 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:09:21,757 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:09:21,757 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:09:21,757 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:09:21,757 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:09:21,758 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:09:21,758 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-19 08:09:21,759 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-19 08:09:21,760 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:09:21,760 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 08:09:21,761 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-19 08:09:21,761 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:09:21,761 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 08:09:21,761 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:09:21,761 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-19 08:09:21,762 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-19 08:09:21,762 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-19 08:09:21,762 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:09:21,762 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-19 08:09:21,763 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 08:09:21,763 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:09:21,763 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:09:21,763 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:09:21,763 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:09:21,764 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:09:21,764 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:09:21,764 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:09:21,764 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:09:21,765 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:09:21,765 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:09:21,765 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a8f8518887bc2e5e0d6d71e32a92b54f9a899d1e11c58bdb579bc81d5f31bb3 [2022-11-19 08:09:22,052 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:09:22,081 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:09:22,084 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:09:22,093 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:09:22,094 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:09:22,095 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/pthread-wmm/mix034_power.oepc_power.opt_pso.oepc_rmo.oepc_rmo.opt_tso.oepc.i [2022-11-19 08:09:22,168 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS/data/7c62f0ee1/9b19f8cb1af64e5e8d00d0df64fe3bb9/FLAGa21806ecf [2022-11-19 08:09:22,710 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:09:22,711 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/sv-benchmarks/c/pthread-wmm/mix034_power.oepc_power.opt_pso.oepc_rmo.oepc_rmo.opt_tso.oepc.i [2022-11-19 08:09:22,726 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS/data/7c62f0ee1/9b19f8cb1af64e5e8d00d0df64fe3bb9/FLAGa21806ecf [2022-11-19 08:09:23,008 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS/data/7c62f0ee1/9b19f8cb1af64e5e8d00d0df64fe3bb9 [2022-11-19 08:09:23,010 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:09:23,011 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:09:23,015 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:09:23,015 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:09:23,019 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:09:23,019 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:09:23" (1/1) ... [2022-11-19 08:09:23,021 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53411b4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:09:23, skipping insertion in model container [2022-11-19 08:09:23,021 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:09:23" (1/1) ... [2022-11-19 08:09:23,029 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:09:23,087 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:09:23,344 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/sv-benchmarks/c/pthread-wmm/mix034_power.oepc_power.opt_pso.oepc_rmo.oepc_rmo.opt_tso.oepc.i[996,1009] [2022-11-19 08:09:23,628 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:09:23,640 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:09:23,655 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/sv-benchmarks/c/pthread-wmm/mix034_power.oepc_power.opt_pso.oepc_rmo.oepc_rmo.opt_tso.oepc.i[996,1009] [2022-11-19 08:09:23,715 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:09:23,765 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:09:23,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:09:23 WrapperNode [2022-11-19 08:09:23,765 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:09:23,766 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:09:23,767 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:09:23,767 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:09:23,775 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:09:23" (1/1) ... [2022-11-19 08:09:23,806 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:09:23" (1/1) ... [2022-11-19 08:09:23,845 INFO L138 Inliner]: procedures = 175, calls = 45, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 115 [2022-11-19 08:09:23,845 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:09:23,847 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:09:23,847 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:09:23,847 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:09:23,856 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:09:23" (1/1) ... [2022-11-19 08:09:23,857 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:09:23" (1/1) ... [2022-11-19 08:09:23,880 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:09:23" (1/1) ... [2022-11-19 08:09:23,880 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:09:23" (1/1) ... [2022-11-19 08:09:23,886 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:09:23" (1/1) ... [2022-11-19 08:09:23,887 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:09:23" (1/1) ... [2022-11-19 08:09:23,889 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:09:23" (1/1) ... [2022-11-19 08:09:23,890 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:09:23" (1/1) ... [2022-11-19 08:09:23,893 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:09:23,894 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:09:23,894 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:09:23,910 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:09:23,911 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:09:23" (1/1) ... [2022-11-19 08:09:23,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:09:23,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:09:23,952 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:09:23,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:09:24,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 08:09:24,001 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-19 08:09:24,001 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:09:24,001 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 08:09:24,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 08:09:24,002 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-19 08:09:24,002 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-19 08:09:24,002 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-19 08:09:24,002 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-19 08:09:24,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 08:09:24,003 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-19 08:09:24,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:09:24,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:09:24,005 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-19 08:09:24,175 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:09:24,177 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:09:24,577 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:09:24,815 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:09:24,815 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-19 08:09:24,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:09:24 BoogieIcfgContainer [2022-11-19 08:09:24,819 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:09:24,821 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:09:24,821 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:09:24,825 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:09:24,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:09:23" (1/3) ... [2022-11-19 08:09:24,826 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c5433cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:09:24, skipping insertion in model container [2022-11-19 08:09:24,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:09:23" (2/3) ... [2022-11-19 08:09:24,827 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c5433cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:09:24, skipping insertion in model container [2022-11-19 08:09:24,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:09:24" (3/3) ... [2022-11-19 08:09:24,828 INFO L112 eAbstractionObserver]: Analyzing ICFG mix034_power.oepc_power.opt_pso.oepc_rmo.oepc_rmo.opt_tso.oepc.i [2022-11-19 08:09:24,848 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:09:24,848 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2022-11-19 08:09:24,848 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-19 08:09:24,908 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-19 08:09:24,942 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-19 08:09:24,958 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 112 places, 107 transitions, 224 flow [2022-11-19 08:09:24,961 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 112 places, 107 transitions, 224 flow [2022-11-19 08:09:24,963 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 112 places, 107 transitions, 224 flow [2022-11-19 08:09:25,012 INFO L130 PetriNetUnfolder]: 2/105 cut-off events. [2022-11-19 08:09:25,013 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-19 08:09:25,017 INFO L83 FinitePrefix]: Finished finitePrefix Result has 112 conditions, 105 events. 2/105 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 64 event pairs, 0 based on Foata normal form. 0/96 useless extension candidates. Maximal degree in co-relation 62. Up to 2 conditions per place. [2022-11-19 08:09:25,019 INFO L119 LiptonReduction]: Number of co-enabled transitions 1444 [2022-11-19 08:09:30,243 INFO L134 LiptonReduction]: Checked pairs total: 3838 [2022-11-19 08:09:30,244 INFO L136 LiptonReduction]: Total number of compositions: 106 [2022-11-19 08:09:30,252 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 33 places, 27 transitions, 64 flow [2022-11-19 08:09:30,297 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 256 states, 245 states have (on average 2.6612244897959183) internal successors, (652), 255 states have internal predecessors, (652), 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) [2022-11-19 08:09:30,320 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:09:30,326 INFO L357 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, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@26b172cd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:09:30,326 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-11-19 08:09:30,329 INFO L276 IsEmpty]: Start isEmpty. Operand has 256 states, 245 states have (on average 2.6612244897959183) internal successors, (652), 255 states have internal predecessors, (652), 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) [2022-11-19 08:09:30,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-19 08:09:30,335 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:30,335 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-19 08:09:30,336 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-19 08:09:30,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:30,341 INFO L85 PathProgramCache]: Analyzing trace with hash 472, now seen corresponding path program 1 times [2022-11-19 08:09:30,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:09:30,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978572860] [2022-11-19 08:09:30,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:09:30,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:09:30,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:09:30,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:30,478 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:09:30,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978572860] [2022-11-19 08:09:30,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978572860] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:09:30,480 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:09:30,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-19 08:09:30,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868162975] [2022-11-19 08:09:30,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:09:30,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 08:09:30,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:09:30,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 08:09:30,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 08:09:30,517 INFO L87 Difference]: Start difference. First operand has 256 states, 245 states have (on average 2.6612244897959183) internal successors, (652), 255 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-11-19 08:09:30,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:09:30,597 INFO L93 Difference]: Finished difference Result 242 states and 592 transitions. [2022-11-19 08:09:30,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 08:09:30,600 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 1 [2022-11-19 08:09:30,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:09:30,610 INFO L225 Difference]: With dead ends: 242 [2022-11-19 08:09:30,610 INFO L226 Difference]: Without dead ends: 242 [2022-11-19 08:09:30,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 08:09:30,614 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:09:30,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:09:30,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2022-11-19 08:09:30,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2022-11-19 08:09:30,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 237 states have (on average 2.49789029535865) internal successors, (592), 241 states have internal predecessors, (592), 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) [2022-11-19 08:09:30,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 592 transitions. [2022-11-19 08:09:30,682 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 592 transitions. Word has length 1 [2022-11-19 08:09:30,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:09:30,682 INFO L495 AbstractCegarLoop]: Abstraction has 242 states and 592 transitions. [2022-11-19 08:09:30,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-11-19 08:09:30,688 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 592 transitions. [2022-11-19 08:09:30,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-19 08:09:30,689 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:30,689 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-19 08:09:30,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 08:09:30,690 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-19 08:09:30,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:30,691 INFO L85 PathProgramCache]: Analyzing trace with hash 466332, now seen corresponding path program 1 times [2022-11-19 08:09:30,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:09:30,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865306056] [2022-11-19 08:09:30,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:09:30,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:09:30,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:09:30,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:30,997 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:09:30,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865306056] [2022-11-19 08:09:30,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865306056] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:09:30,998 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:09:30,998 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-19 08:09:30,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984384698] [2022-11-19 08:09:30,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:09:30,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:09:31,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:09:31,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:09:31,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:09:31,008 INFO L87 Difference]: Start difference. First operand 242 states and 592 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:31,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:09:31,087 INFO L93 Difference]: Finished difference Result 198 states and 475 transitions. [2022-11-19 08:09:31,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:09:31,089 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-11-19 08:09:31,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:09:31,091 INFO L225 Difference]: With dead ends: 198 [2022-11-19 08:09:31,091 INFO L226 Difference]: Without dead ends: 192 [2022-11-19 08:09:31,091 INFO L412 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 [2022-11-19 08:09:31,092 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 10 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:09:31,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:09:31,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2022-11-19 08:09:31,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2022-11-19 08:09:31,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 190 states have (on average 2.442105263157895) internal successors, (464), 191 states have internal predecessors, (464), 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) [2022-11-19 08:09:31,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 464 transitions. [2022-11-19 08:09:31,117 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 464 transitions. Word has length 3 [2022-11-19 08:09:31,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:09:31,117 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 464 transitions. [2022-11-19 08:09:31,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:31,117 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 464 transitions. [2022-11-19 08:09:31,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-19 08:09:31,118 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:31,118 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:09:31,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 08:09:31,119 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-19 08:09:31,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:31,122 INFO L85 PathProgramCache]: Analyzing trace with hash -667742720, now seen corresponding path program 1 times [2022-11-19 08:09:31,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:09:31,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012854926] [2022-11-19 08:09:31,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:09:31,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:09:31,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:09:31,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:31,446 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:09:31,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012854926] [2022-11-19 08:09:31,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012854926] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:09:31,447 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:09:31,447 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:09:31,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407572053] [2022-11-19 08:09:31,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:09:31,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:09:31,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:09:31,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:09:31,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:09:31,449 INFO L87 Difference]: Start difference. First operand 192 states and 464 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-11-19 08:09:31,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:09:31,572 INFO L93 Difference]: Finished difference Result 222 states and 518 transitions. [2022-11-19 08:09:31,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:09:31,572 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2022-11-19 08:09:31,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:09:31,575 INFO L225 Difference]: With dead ends: 222 [2022-11-19 08:09:31,575 INFO L226 Difference]: Without dead ends: 222 [2022-11-19 08:09:31,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:09:31,579 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 22 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:09:31,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 5 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:09:31,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2022-11-19 08:09:31,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 202. [2022-11-19 08:09:31,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 200 states have (on average 2.435) internal successors, (487), 201 states have internal predecessors, (487), 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) [2022-11-19 08:09:31,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 487 transitions. [2022-11-19 08:09:31,597 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 487 transitions. Word has length 8 [2022-11-19 08:09:31,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:09:31,598 INFO L495 AbstractCegarLoop]: Abstraction has 202 states and 487 transitions. [2022-11-19 08:09:31,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-11-19 08:09:31,598 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 487 transitions. [2022-11-19 08:09:31,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-19 08:09:31,599 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:31,600 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:09:31,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 08:09:31,601 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-19 08:09:31,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:31,603 INFO L85 PathProgramCache]: Analyzing trace with hash -667742698, now seen corresponding path program 1 times [2022-11-19 08:09:31,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:09:31,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9190187] [2022-11-19 08:09:31,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:09:31,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:09:31,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:09:31,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:31,921 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:09:31,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9190187] [2022-11-19 08:09:31,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9190187] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:09:31,921 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:09:31,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:09:31,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678932818] [2022-11-19 08:09:31,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:09:31,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:09:31,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:09:31,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:09:31,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:09:31,923 INFO L87 Difference]: Start difference. First operand 202 states and 487 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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) [2022-11-19 08:09:32,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:09:32,011 INFO L93 Difference]: Finished difference Result 172 states and 388 transitions. [2022-11-19 08:09:32,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:09:32,011 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 8 [2022-11-19 08:09:32,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:09:32,012 INFO L225 Difference]: With dead ends: 172 [2022-11-19 08:09:32,013 INFO L226 Difference]: Without dead ends: 142 [2022-11-19 08:09:32,013 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:09:32,014 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 25 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:09:32,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 6 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:09:32,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2022-11-19 08:09:32,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2022-11-19 08:09:32,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 141 states have (on average 2.3333333333333335) internal successors, (329), 141 states have internal predecessors, (329), 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) [2022-11-19 08:09:32,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 329 transitions. [2022-11-19 08:09:32,020 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 329 transitions. Word has length 8 [2022-11-19 08:09:32,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:09:32,020 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 329 transitions. [2022-11-19 08:09:32,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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) [2022-11-19 08:09:32,020 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 329 transitions. [2022-11-19 08:09:32,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-19 08:09:32,023 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:32,023 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:09:32,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 08:09:32,023 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-19 08:09:32,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:32,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1092053609, now seen corresponding path program 1 times [2022-11-19 08:09:32,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:09:32,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66512596] [2022-11-19 08:09:32,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:09:32,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:09:32,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:09:32,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:32,267 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:09:32,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66512596] [2022-11-19 08:09:32,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66512596] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:09:32,270 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:09:32,270 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:09:32,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980580170] [2022-11-19 08:09:32,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:09:32,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:09:32,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:09:32,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:09:32,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:09:32,274 INFO L87 Difference]: Start difference. First operand 142 states and 329 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 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) [2022-11-19 08:09:32,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:09:32,374 INFO L93 Difference]: Finished difference Result 108 states and 206 transitions. [2022-11-19 08:09:32,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:09:32,374 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 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 10 [2022-11-19 08:09:32,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:09:32,375 INFO L225 Difference]: With dead ends: 108 [2022-11-19 08:09:32,375 INFO L226 Difference]: Without dead ends: 78 [2022-11-19 08:09:32,375 INFO L412 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 [2022-11-19 08:09:32,376 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 24 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:09:32,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 5 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:09:32,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-11-19 08:09:32,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2022-11-19 08:09:32,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 77 states have (on average 1.7792207792207793) internal successors, (137), 77 states have internal predecessors, (137), 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) [2022-11-19 08:09:32,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 137 transitions. [2022-11-19 08:09:32,379 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 137 transitions. Word has length 10 [2022-11-19 08:09:32,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:09:32,380 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 137 transitions. [2022-11-19 08:09:32,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 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) [2022-11-19 08:09:32,380 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 137 transitions. [2022-11-19 08:09:32,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-19 08:09:32,381 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:32,381 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:09:32,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 08:09:32,382 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-19 08:09:32,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:32,382 INFO L85 PathProgramCache]: Analyzing trace with hash -1960365683, now seen corresponding path program 1 times [2022-11-19 08:09:32,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:09:32,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741947258] [2022-11-19 08:09:32,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:09:32,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:09:32,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:09:32,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:32,742 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:09:32,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741947258] [2022-11-19 08:09:32,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741947258] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:09:32,743 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:09:32,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:09:32,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570372155] [2022-11-19 08:09:32,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:09:32,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:09:32,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:09:32,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:09:32,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:09:32,746 INFO L87 Difference]: Start difference. First operand 78 states and 137 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 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) [2022-11-19 08:09:32,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:09:32,844 INFO L93 Difference]: Finished difference Result 56 states and 91 transitions. [2022-11-19 08:09:32,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 08:09:32,845 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 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 13 [2022-11-19 08:09:32,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:09:32,846 INFO L225 Difference]: With dead ends: 56 [2022-11-19 08:09:32,846 INFO L226 Difference]: Without dead ends: 46 [2022-11-19 08:09:32,846 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-19 08:09:32,848 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 32 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:09:32,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 5 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:09:32,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-11-19 08:09:32,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2022-11-19 08:09:32,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.6222222222222222) internal successors, (73), 45 states have internal predecessors, (73), 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) [2022-11-19 08:09:32,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 73 transitions. [2022-11-19 08:09:32,853 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 73 transitions. Word has length 13 [2022-11-19 08:09:32,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:09:32,853 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 73 transitions. [2022-11-19 08:09:32,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 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) [2022-11-19 08:09:32,854 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 73 transitions. [2022-11-19 08:09:32,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-19 08:09:32,858 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:32,859 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:09:32,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 08:09:32,859 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-19 08:09:32,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:32,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1323801527, now seen corresponding path program 1 times [2022-11-19 08:09:32,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:09:32,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381309020] [2022-11-19 08:09:32,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:09:32,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:09:32,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:09:33,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:33,541 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:09:33,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381309020] [2022-11-19 08:09:33,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381309020] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:09:33,542 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:09:33,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 08:09:33,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243247104] [2022-11-19 08:09:33,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:09:33,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 08:09:33,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:09:33,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 08:09:33,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 08:09:33,544 INFO L87 Difference]: Start difference. First operand 46 states and 73 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 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) [2022-11-19 08:09:33,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:09:33,718 INFO L93 Difference]: Finished difference Result 68 states and 102 transitions. [2022-11-19 08:09:33,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 08:09:33,719 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 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 17 [2022-11-19 08:09:33,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:09:33,719 INFO L225 Difference]: With dead ends: 68 [2022-11-19 08:09:33,719 INFO L226 Difference]: Without dead ends: 49 [2022-11-19 08:09:33,720 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:09:33,720 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 11 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:09:33,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 5 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:09:33,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-11-19 08:09:33,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 36. [2022-11-19 08:09:33,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.5142857142857142) internal successors, (53), 35 states have internal predecessors, (53), 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) [2022-11-19 08:09:33,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 53 transitions. [2022-11-19 08:09:33,722 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 53 transitions. Word has length 17 [2022-11-19 08:09:33,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:09:33,723 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 53 transitions. [2022-11-19 08:09:33,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 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) [2022-11-19 08:09:33,723 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 53 transitions. [2022-11-19 08:09:33,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-19 08:09:33,723 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:33,723 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:09:33,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-19 08:09:33,724 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-19 08:09:33,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:33,724 INFO L85 PathProgramCache]: Analyzing trace with hash -380023799, now seen corresponding path program 2 times [2022-11-19 08:09:33,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:09:33,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455486220] [2022-11-19 08:09:33,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:09:33,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:09:33,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 08:09:33,811 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-19 08:09:33,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 08:09:33,893 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-19 08:09:33,894 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-19 08:09:33,895 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (9 of 10 remaining) [2022-11-19 08:09:33,897 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONMEMORY_LEAK (8 of 10 remaining) [2022-11-19 08:09:33,898 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 10 remaining) [2022-11-19 08:09:33,898 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 10 remaining) [2022-11-19 08:09:33,898 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 10 remaining) [2022-11-19 08:09:33,899 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 10 remaining) [2022-11-19 08:09:33,899 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (3 of 10 remaining) [2022-11-19 08:09:33,899 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 10 remaining) [2022-11-19 08:09:33,900 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 10 remaining) [2022-11-19 08:09:33,900 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 10 remaining) [2022-11-19 08:09:33,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-19 08:09:33,902 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1] [2022-11-19 08:09:33,908 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-19 08:09:33,908 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 08:09:33,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:09:33 BasicIcfg [2022-11-19 08:09:33,993 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 08:09:33,993 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 08:09:33,993 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 08:09:33,994 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 08:09:33,994 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:09:24" (3/4) ... [2022-11-19 08:09:33,996 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-19 08:09:33,997 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 08:09:33,997 INFO L158 Benchmark]: Toolchain (without parser) took 10985.91ms. Allocated memory was 98.6MB in the beginning and 165.7MB in the end (delta: 67.1MB). Free memory was 60.6MB in the beginning and 114.5MB in the end (delta: -53.9MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. [2022-11-19 08:09:33,997 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 98.6MB. Free memory was 79.1MB in the beginning and 79.0MB in the end (delta: 116.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:09:33,998 INFO L158 Benchmark]: CACSL2BoogieTranslator took 750.61ms. Allocated memory is still 98.6MB. Free memory was 60.4MB in the beginning and 61.2MB in the end (delta: -804.4kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-19 08:09:33,998 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.75ms. Allocated memory is still 98.6MB. Free memory was 61.2MB in the beginning and 58.9MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 08:09:33,998 INFO L158 Benchmark]: Boogie Preprocessor took 46.74ms. Allocated memory is still 98.6MB. Free memory was 58.9MB in the beginning and 57.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 08:09:33,999 INFO L158 Benchmark]: RCFGBuilder took 925.08ms. Allocated memory was 98.6MB in the beginning and 125.8MB in the end (delta: 27.3MB). Free memory was 56.8MB in the beginning and 88.9MB in the end (delta: -32.1MB). Peak memory consumption was 28.8MB. Max. memory is 16.1GB. [2022-11-19 08:09:33,999 INFO L158 Benchmark]: TraceAbstraction took 9171.67ms. Allocated memory was 125.8MB in the beginning and 165.7MB in the end (delta: 39.8MB). Free memory was 88.4MB in the beginning and 115.6MB in the end (delta: -27.2MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. [2022-11-19 08:09:34,000 INFO L158 Benchmark]: Witness Printer took 3.53ms. Allocated memory is still 165.7MB. Free memory was 115.6MB in the beginning and 114.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 08:09:34,003 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 98.6MB. Free memory was 79.1MB in the beginning and 79.0MB in the end (delta: 116.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 750.61ms. Allocated memory is still 98.6MB. Free memory was 60.4MB in the beginning and 61.2MB in the end (delta: -804.4kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.75ms. Allocated memory is still 98.6MB. Free memory was 61.2MB in the beginning and 58.9MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.74ms. Allocated memory is still 98.6MB. Free memory was 58.9MB in the beginning and 57.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 925.08ms. Allocated memory was 98.6MB in the beginning and 125.8MB in the end (delta: 27.3MB). Free memory was 56.8MB in the beginning and 88.9MB in the end (delta: -32.1MB). Peak memory consumption was 28.8MB. Max. memory is 16.1GB. * TraceAbstraction took 9171.67ms. Allocated memory was 125.8MB in the beginning and 165.7MB in the end (delta: 39.8MB). Free memory was 88.4MB in the beginning and 115.6MB in the end (delta: -27.2MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. * Witness Printer took 3.53ms. Allocated memory is still 165.7MB. Free memory was 115.6MB in the beginning and 114.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.3s, 112 PlacesBefore, 33 PlacesAfterwards, 107 TransitionsBefore, 27 TransitionsAfterwards, 1444 CoEnabledTransitionPairs, 7 FixpointIterations, 47 TrivialSequentialCompositions, 49 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 106 TotalNumberOfCompositions, 3838 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2289, independent: 2153, independent conditional: 0, independent unconditional: 2153, dependent: 136, dependent conditional: 0, dependent unconditional: 136, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1073, independent: 1036, independent conditional: 0, independent unconditional: 1036, dependent: 37, dependent conditional: 0, dependent unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1073, independent: 1021, independent conditional: 0, independent unconditional: 1021, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 52, independent: 15, independent conditional: 0, independent unconditional: 15, dependent: 37, dependent conditional: 0, dependent unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 539, independent: 32, independent conditional: 0, independent unconditional: 32, dependent: 507, dependent conditional: 0, dependent unconditional: 507, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2289, independent: 1117, independent conditional: 0, independent unconditional: 1117, dependent: 99, dependent conditional: 0, dependent unconditional: 99, unknown: 1073, unknown conditional: 0, unknown unconditional: 1073] , Statistics on independence cache: Total cache size (in pairs): 135, Positive cache size: 117, Positive conditional cache size: 0, Positive unconditional cache size: 117, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 18. Possible FailurePath: [L730] 0 _Bool z$r_buff1_thd2; [L728] 0 _Bool z$r_buff1_thd0; [L729] 0 _Bool z$r_buff1_thd1; [L737] 0 _Bool weak$$choice0; [L735] 0 int z$w_buff1; [L738] 0 _Bool weak$$choice2; [L710] 0 int __unbuffered_p0_EAX = 0; [L723] 0 _Bool z$flush_delayed; [L733] 0 int z$w_buff0; [L726] 0 _Bool z$r_buff0_thd1; [L727] 0 _Bool z$r_buff0_thd2; [L712] 0 int __unbuffered_p1_EAX = 0; [L725] 0 _Bool z$r_buff0_thd0; [L724] 0 int z$mem_tmp; [L731] 0 _Bool z$read_delayed; [L732] 0 int *z$read_delayed_var; [L736] 0 _Bool z$w_buff1_used; [L708] 0 int __unbuffered_cnt = 0; [L716] 0 _Bool main$tmp_guard1; [L715] 0 _Bool main$tmp_guard0; [L714] 0 int __unbuffered_p1_EBX = 0; [L734] 0 _Bool z$w_buff0_used; [L718] 0 int x = 0; [L720] 0 int y = 0; [L722] 0 int z = 0; [L817] 0 pthread_t t897; [L818] FCALL, FORK 0 pthread_create(&t897, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t897, ((void *)0), P0, ((void *)0))=-2, t897={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L819] 0 pthread_t t898; [L742] 1 z$w_buff1 = z$w_buff0 [L743] 1 z$w_buff0 = 1 [L744] 1 z$w_buff1_used = z$w_buff0_used [L745] 1 z$w_buff0_used = (_Bool)1 [L746] CALL 1 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L18] COND FALSE 1 !(!expression) [L746] RET 1 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L747] 1 z$r_buff1_thd0 = z$r_buff0_thd0 [L748] 1 z$r_buff1_thd1 = z$r_buff0_thd1 [L749] 1 z$r_buff1_thd2 = z$r_buff0_thd2 [L750] 1 z$r_buff0_thd1 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L753] 1 __unbuffered_p0_EAX = x VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L820] FCALL, FORK 0 pthread_create(&t898, ((void *)0), P1, ((void *)0)) VAL [__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, pthread_create(&t898, ((void *)0), P1, ((void *)0))=-1, t897={5:0}, t898={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L770] 2 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L773] 2 y = 1 [L776] 2 __unbuffered_p1_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L779] 2 weak$$choice0 = __VERIFIER_nondet_bool() [L780] 2 weak$$choice2 = __VERIFIER_nondet_bool() [L781] 2 z$flush_delayed = weak$$choice2 [L782] 2 z$mem_tmp = z [L783] 2 z = !z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : z$w_buff1) [L784] 2 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : z$w_buff0)) [L785] 2 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff1 : z$w_buff1)) [L786] 2 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$w_buff0_used)) [L787] 2 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L788] 2 z$r_buff0_thd2 = weak$$choice2 ? z$r_buff0_thd2 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$r_buff0_thd2 : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$r_buff0_thd2)) [L789] 2 z$r_buff1_thd2 = weak$$choice2 ? z$r_buff1_thd2 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$r_buff1_thd2 : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L790] 2 __unbuffered_p1_EBX = z [L791] 2 z = z$flush_delayed ? z$mem_tmp : z [L792] 2 z$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=66, weak$$choice2=0, x=1, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L756] 1 z = z$w_buff0_used && z$r_buff0_thd1 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd1 ? z$w_buff1 : z) [L757] 1 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd1 ? (_Bool)0 : z$w_buff0_used [L758] 1 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd1 || z$w_buff1_used && z$r_buff1_thd1 ? (_Bool)0 : z$w_buff1_used [L759] 1 z$r_buff0_thd1 = z$w_buff0_used && z$r_buff0_thd1 ? (_Bool)0 : z$r_buff0_thd1 [L760] 1 z$r_buff1_thd1 = z$w_buff0_used && z$r_buff0_thd1 || z$w_buff1_used && z$r_buff1_thd1 ? (_Bool)0 : z$r_buff1_thd1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=66, weak$$choice2=0, x=1, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L763] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L765] 1 return 0; [L795] 2 z = z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd2 ? z$w_buff1 : z) [L796] 2 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$w_buff0_used [L797] 2 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd2 || z$w_buff1_used && z$r_buff1_thd2 ? (_Bool)0 : z$w_buff1_used [L798] 2 z$r_buff0_thd2 = z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$r_buff0_thd2 [L799] 2 z$r_buff1_thd2 = z$w_buff0_used && z$r_buff0_thd2 || z$w_buff1_used && z$r_buff1_thd2 ? (_Bool)0 : z$r_buff1_thd2 VAL [__unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=66, weak$$choice2=0, x=1, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L802] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L804] 2 return 0; [L822] 0 main$tmp_guard0 = __unbuffered_cnt == 2 [L824] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L824] RET 0 assume_abort_if_not(main$tmp_guard0) [L826] 0 z = z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L827] 0 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L828] 0 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L829] 0 z$r_buff0_thd0 = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L830] 0 z$r_buff1_thd0 = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t897={5:0}, t898={3:0}, weak$$choice0=66, weak$$choice2=0, x=1, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L833] 0 main$tmp_guard1 = !(__unbuffered_p0_EAX == 0 && __unbuffered_p1_EAX == 1 && __unbuffered_p1_EBX == 0) [L835] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\old(expression)=1, \old(expression)=0, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, expression=1, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=66, weak$$choice2=0, x=1, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 815]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 820]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 818]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 127 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 9.0s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 124 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 124 mSDsluCounter, 29 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 18 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 449 IncrementalHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 11 mSDtfsCounter, 449 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=256occurred in iteration=0, InterpolantAutomatonStates: 33, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 33 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 77 NumberOfCodeBlocks, 77 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 53 ConstructedInterpolants, 0 QuantifiedInterpolants, 324 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 [2022-11-19 08:09:34,042 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, 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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix034_power.oepc_power.opt_pso.oepc_rmo.oepc_rmo.opt_tso.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS --witnessprinter.witness.filename witness.graphml --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 3a8f8518887bc2e5e0d6d71e32a92b54f9a899d1e11c58bdb579bc81d5f31bb3 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 08:09:36,363 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:09:36,366 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:09:36,403 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:09:36,403 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:09:36,408 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:09:36,410 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:09:36,415 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:09:36,417 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:09:36,425 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:09:36,426 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:09:36,429 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:09:36,429 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:09:36,431 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:09:36,433 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:09:36,437 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:09:36,439 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:09:36,441 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:09:36,443 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:09:36,450 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:09:36,452 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:09:36,454 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:09:36,456 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:09:36,457 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:09:36,466 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:09:36,467 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:09:36,467 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:09:36,468 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:09:36,470 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:09:36,471 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:09:36,471 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:09:36,472 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:09:36,474 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:09:36,475 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:09:36,476 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:09:36,476 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:09:36,477 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:09:36,478 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:09:36,478 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:09:36,480 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:09:36,481 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:09:36,481 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2022-11-19 08:09:36,506 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:09:36,506 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:09:36,507 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:09:36,507 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:09:36,508 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:09:36,508 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:09:36,508 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:09:36,508 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:09:36,509 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:09:36,509 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:09:36,509 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:09:36,509 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:09:36,510 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-19 08:09:36,510 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-19 08:09:36,510 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:09:36,511 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 08:09:36,511 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-19 08:09:36,511 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:09:36,511 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 08:09:36,512 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:09:36,512 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-19 08:09:36,512 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-19 08:09:36,512 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-19 08:09:36,512 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:09:36,513 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-19 08:09:36,513 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-19 08:09:36,513 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-19 08:09:36,513 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 08:09:36,513 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:09:36,514 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:09:36,514 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-19 08:09:36,514 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:09:36,514 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:09:36,515 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:09:36,515 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:09:36,515 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-19 08:09:36,515 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-19 08:09:36,516 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:09:36,516 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-19 08:09:36,516 INFO L138 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_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS/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_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml 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 -> 3a8f8518887bc2e5e0d6d71e32a92b54f9a899d1e11c58bdb579bc81d5f31bb3 [2022-11-19 08:09:36,876 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:09:36,904 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:09:36,907 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:09:36,908 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:09:36,909 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:09:36,910 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/pthread-wmm/mix034_power.oepc_power.opt_pso.oepc_rmo.oepc_rmo.opt_tso.oepc.i [2022-11-19 08:09:36,984 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS/data/60b1dfea3/7ab5f6ee672b448d96b294c634182fd0/FLAGaaaca22d9 [2022-11-19 08:09:37,559 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:09:37,560 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/sv-benchmarks/c/pthread-wmm/mix034_power.oepc_power.opt_pso.oepc_rmo.oepc_rmo.opt_tso.oepc.i [2022-11-19 08:09:37,573 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS/data/60b1dfea3/7ab5f6ee672b448d96b294c634182fd0/FLAGaaaca22d9 [2022-11-19 08:09:37,870 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS/data/60b1dfea3/7ab5f6ee672b448d96b294c634182fd0 [2022-11-19 08:09:37,874 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:09:37,876 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:09:37,880 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:09:37,880 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:09:37,884 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:09:37,885 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:09:37" (1/1) ... [2022-11-19 08:09:37,887 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20c66977 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:09:37, skipping insertion in model container [2022-11-19 08:09:37,887 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:09:37" (1/1) ... [2022-11-19 08:09:37,894 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:09:37,959 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:09:38,171 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/sv-benchmarks/c/pthread-wmm/mix034_power.oepc_power.opt_pso.oepc_rmo.oepc_rmo.opt_tso.oepc.i[996,1009] [2022-11-19 08:09:38,403 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:09:38,425 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:09:38,437 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/sv-benchmarks/c/pthread-wmm/mix034_power.oepc_power.opt_pso.oepc_rmo.oepc_rmo.opt_tso.oepc.i[996,1009] [2022-11-19 08:09:38,476 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:09:38,513 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:09:38,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:09:38 WrapperNode [2022-11-19 08:09:38,514 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:09:38,515 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:09:38,515 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:09:38,515 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:09:38,522 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:09:38" (1/1) ... [2022-11-19 08:09:38,539 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:09:38" (1/1) ... [2022-11-19 08:09:38,561 INFO L138 Inliner]: procedures = 178, calls = 45, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 116 [2022-11-19 08:09:38,562 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:09:38,563 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:09:38,563 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:09:38,563 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:09:38,572 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:09:38" (1/1) ... [2022-11-19 08:09:38,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:09:38" (1/1) ... [2022-11-19 08:09:38,576 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:09:38" (1/1) ... [2022-11-19 08:09:38,576 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:09:38" (1/1) ... [2022-11-19 08:09:38,605 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:09:38" (1/1) ... [2022-11-19 08:09:38,607 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:09:38" (1/1) ... [2022-11-19 08:09:38,609 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:09:38" (1/1) ... [2022-11-19 08:09:38,611 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:09:38" (1/1) ... [2022-11-19 08:09:38,614 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:09:38,615 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:09:38,630 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:09:38,631 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:09:38,631 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:09:38" (1/1) ... [2022-11-19 08:09:38,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:09:38,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:09:38,654 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:09:38,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:09:38,700 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-19 08:09:38,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:09:38,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 08:09:38,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 08:09:38,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-19 08:09:38,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-19 08:09:38,701 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-19 08:09:38,702 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-19 08:09:38,702 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-19 08:09:38,702 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-19 08:09:38,702 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-19 08:09:38,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:09:38,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:09:38,704 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-19 08:09:38,914 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:09:38,916 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:09:39,355 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:09:39,516 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:09:39,516 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-19 08:09:39,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:09:39 BoogieIcfgContainer [2022-11-19 08:09:39,518 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:09:39,519 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:09:39,519 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:09:39,521 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:09:39,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:09:37" (1/3) ... [2022-11-19 08:09:39,522 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a05beb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:09:39, skipping insertion in model container [2022-11-19 08:09:39,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:09:38" (2/3) ... [2022-11-19 08:09:39,523 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a05beb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:09:39, skipping insertion in model container [2022-11-19 08:09:39,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:09:39" (3/3) ... [2022-11-19 08:09:39,524 INFO L112 eAbstractionObserver]: Analyzing ICFG mix034_power.oepc_power.opt_pso.oepc_rmo.oepc_rmo.opt_tso.oepc.i [2022-11-19 08:09:39,536 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:09:39,536 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2022-11-19 08:09:39,536 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-19 08:09:39,607 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-19 08:09:39,652 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-19 08:09:39,669 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 113 places, 108 transitions, 226 flow [2022-11-19 08:09:39,672 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 113 places, 108 transitions, 226 flow [2022-11-19 08:09:39,674 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 113 places, 108 transitions, 226 flow [2022-11-19 08:09:39,751 INFO L130 PetriNetUnfolder]: 2/106 cut-off events. [2022-11-19 08:09:39,751 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-19 08:09:39,758 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113 conditions, 106 events. 2/106 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 64 event pairs, 0 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 62. Up to 2 conditions per place. [2022-11-19 08:09:39,759 INFO L119 LiptonReduction]: Number of co-enabled transitions 1444 [2022-11-19 08:09:47,557 INFO L134 LiptonReduction]: Checked pairs total: 3606 [2022-11-19 08:09:47,557 INFO L136 LiptonReduction]: Total number of compositions: 113 [2022-11-19 08:09:47,565 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 33 places, 27 transitions, 64 flow [2022-11-19 08:09:47,599 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 256 states, 245 states have (on average 2.6612244897959183) internal successors, (652), 255 states have internal predecessors, (652), 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) [2022-11-19 08:09:47,616 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:09:47,622 INFO L357 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, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@570966bb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:09:47,623 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-11-19 08:09:47,625 INFO L276 IsEmpty]: Start isEmpty. Operand has 256 states, 245 states have (on average 2.6612244897959183) internal successors, (652), 255 states have internal predecessors, (652), 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) [2022-11-19 08:09:47,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-19 08:09:47,630 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:47,631 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-19 08:09:47,631 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-19 08:09:47,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:47,637 INFO L85 PathProgramCache]: Analyzing trace with hash 482, now seen corresponding path program 1 times [2022-11-19 08:09:47,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:09:47,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [170002594] [2022-11-19 08:09:47,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:09:47,649 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 [2022-11-19 08:09:47,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:09:47,659 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS/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) [2022-11-19 08:09:47,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 08:09:47,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:09:47,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-19 08:09:47,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:09:47,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:47,742 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:09:47,743 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:09:47,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [170002594] [2022-11-19 08:09:47,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [170002594] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:09:47,744 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:09:47,744 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-19 08:09:47,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90496416] [2022-11-19 08:09:47,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:09:47,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 08:09:47,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:09:47,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 08:09:47,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 08:09:47,776 INFO L87 Difference]: Start difference. First operand has 256 states, 245 states have (on average 2.6612244897959183) internal successors, (652), 255 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-11-19 08:09:47,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:09:47,878 INFO L93 Difference]: Finished difference Result 242 states and 592 transitions. [2022-11-19 08:09:47,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 08:09:47,893 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 1 [2022-11-19 08:09:47,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:09:47,904 INFO L225 Difference]: With dead ends: 242 [2022-11-19 08:09:47,918 INFO L226 Difference]: Without dead ends: 242 [2022-11-19 08:09:47,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 08:09:47,922 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:09:47,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:09:47,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2022-11-19 08:09:48,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2022-11-19 08:09:48,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 237 states have (on average 2.49789029535865) internal successors, (592), 241 states have internal predecessors, (592), 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) [2022-11-19 08:09:48,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 592 transitions. [2022-11-19 08:09:48,036 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 592 transitions. Word has length 1 [2022-11-19 08:09:48,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:09:48,037 INFO L495 AbstractCegarLoop]: Abstraction has 242 states and 592 transitions. [2022-11-19 08:09:48,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-11-19 08:09:48,038 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 592 transitions. [2022-11-19 08:09:48,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-19 08:09:48,040 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:48,040 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-19 08:09:48,055 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 08:09:48,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 08:09:48,251 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-19 08:09:48,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:48,252 INFO L85 PathProgramCache]: Analyzing trace with hash 473126, now seen corresponding path program 1 times [2022-11-19 08:09:48,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:09:48,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1858166986] [2022-11-19 08:09:48,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:09:48,253 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 [2022-11-19 08:09:48,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:09:48,254 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS/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) [2022-11-19 08:09:48,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 08:09:48,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:09:48,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-19 08:09:48,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:09:48,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:48,364 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:09:48,365 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:09:48,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1858166986] [2022-11-19 08:09:48,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1858166986] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:09:48,365 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:09:48,366 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-19 08:09:48,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838208714] [2022-11-19 08:09:48,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:09:48,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:09:48,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:09:48,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:09:48,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:09:48,369 INFO L87 Difference]: Start difference. First operand 242 states and 592 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:48,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:09:48,469 INFO L93 Difference]: Finished difference Result 198 states and 475 transitions. [2022-11-19 08:09:48,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:09:48,470 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-11-19 08:09:48,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:09:48,472 INFO L225 Difference]: With dead ends: 198 [2022-11-19 08:09:48,472 INFO L226 Difference]: Without dead ends: 192 [2022-11-19 08:09:48,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:09:48,474 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 10 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:09:48,475 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:09:48,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2022-11-19 08:09:48,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2022-11-19 08:09:48,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 190 states have (on average 2.442105263157895) internal successors, (464), 191 states have internal predecessors, (464), 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) [2022-11-19 08:09:48,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 464 transitions. [2022-11-19 08:09:48,502 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 464 transitions. Word has length 3 [2022-11-19 08:09:48,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:09:48,503 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 464 transitions. [2022-11-19 08:09:48,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:48,503 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 464 transitions. [2022-11-19 08:09:48,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-19 08:09:48,504 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:48,505 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:09:48,530 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 08:09:48,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 08:09:48,719 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-19 08:09:48,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:48,720 INFO L85 PathProgramCache]: Analyzing trace with hash 767676235, now seen corresponding path program 1 times [2022-11-19 08:09:48,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:09:48,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2104042073] [2022-11-19 08:09:48,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:09:48,721 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 [2022-11-19 08:09:48,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:09:48,722 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS/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) [2022-11-19 08:09:48,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 08:09:48,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:09:48,813 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-19 08:09:48,814 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:09:48,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:48,851 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:09:48,851 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:09:48,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2104042073] [2022-11-19 08:09:48,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2104042073] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:09:48,852 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:09:48,852 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:09:48,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712596613] [2022-11-19 08:09:48,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:09:48,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:09:48,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:09:48,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:09:48,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:09:48,854 INFO L87 Difference]: Start difference. First operand 192 states and 464 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-11-19 08:09:48,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:09:48,980 INFO L93 Difference]: Finished difference Result 122 states and 233 transitions. [2022-11-19 08:09:48,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:09:48,981 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2022-11-19 08:09:48,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:09:48,982 INFO L225 Difference]: With dead ends: 122 [2022-11-19 08:09:48,982 INFO L226 Difference]: Without dead ends: 92 [2022-11-19 08:09:48,982 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:09:48,984 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 26 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:09:48,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 5 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:09:48,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2022-11-19 08:09:48,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2022-11-19 08:09:48,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 90 states have (on average 1.8222222222222222) internal successors, (164), 91 states have internal predecessors, (164), 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) [2022-11-19 08:09:48,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 164 transitions. [2022-11-19 08:09:48,991 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 164 transitions. Word has length 8 [2022-11-19 08:09:48,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:09:48,991 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 164 transitions. [2022-11-19 08:09:48,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-11-19 08:09:48,992 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 164 transitions. [2022-11-19 08:09:48,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-19 08:09:48,993 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:48,993 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:09:49,021 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 08:09:49,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 08:09:49,222 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-19 08:09:49,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:49,222 INFO L85 PathProgramCache]: Analyzing trace with hash 1704457322, now seen corresponding path program 1 times [2022-11-19 08:09:49,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:09:49,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2002829512] [2022-11-19 08:09:49,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:09:49,223 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 [2022-11-19 08:09:49,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:09:49,231 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS/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) [2022-11-19 08:09:49,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 08:09:49,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:09:49,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-19 08:09:49,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:09:49,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:49,392 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:09:49,392 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:09:49,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2002829512] [2022-11-19 08:09:49,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2002829512] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:09:49,393 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:09:49,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:09:49,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496161852] [2022-11-19 08:09:49,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:09:49,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:09:49,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:09:49,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:09:49,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:09:49,396 INFO L87 Difference]: Start difference. First operand 92 states and 164 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 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) [2022-11-19 08:09:49,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:09:49,558 INFO L93 Difference]: Finished difference Result 57 states and 92 transitions. [2022-11-19 08:09:49,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 08:09:49,558 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 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 12 [2022-11-19 08:09:49,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:09:49,559 INFO L225 Difference]: With dead ends: 57 [2022-11-19 08:09:49,559 INFO L226 Difference]: Without dead ends: 47 [2022-11-19 08:09:49,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-19 08:09:49,560 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 23 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:09:49,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 8 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:09:49,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-11-19 08:09:49,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2022-11-19 08:09:49,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 45 states have (on average 1.6444444444444444) internal successors, (74), 46 states have internal predecessors, (74), 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) [2022-11-19 08:09:49,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 74 transitions. [2022-11-19 08:09:49,564 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 74 transitions. Word has length 12 [2022-11-19 08:09:49,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:09:49,564 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 74 transitions. [2022-11-19 08:09:49,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 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) [2022-11-19 08:09:49,564 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 74 transitions. [2022-11-19 08:09:49,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-19 08:09:49,565 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:49,565 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:09:49,591 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS/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)] Forceful destruction successful, exit code 0 [2022-11-19 08:09:49,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 08:09:49,779 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-19 08:09:49,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:49,780 INFO L85 PathProgramCache]: Analyzing trace with hash -885151686, now seen corresponding path program 1 times [2022-11-19 08:09:49,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:09:49,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [316132017] [2022-11-19 08:09:49,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:09:49,781 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 [2022-11-19 08:09:49,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:09:49,782 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS/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) [2022-11-19 08:09:49,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 08:09:49,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:09:49,926 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 08:09:49,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:09:50,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:50,201 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:09:50,202 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:09:50,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [316132017] [2022-11-19 08:09:50,202 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [316132017] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:09:50,202 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:09:50,202 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:09:50,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528309405] [2022-11-19 08:09:50,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:09:50,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:09:50,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:09:50,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:09:50,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:09:50,204 INFO L87 Difference]: Start difference. First operand 47 states and 74 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2022-11-19 08:09:50,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:09:50,237 INFO L93 Difference]: Finished difference Result 78 states and 123 transitions. [2022-11-19 08:09:50,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:09:50,238 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 17 [2022-11-19 08:09:50,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:09:50,239 INFO L225 Difference]: With dead ends: 78 [2022-11-19 08:09:50,239 INFO L226 Difference]: Without dead ends: 78 [2022-11-19 08:09:50,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:09:50,243 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 1 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 19 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:09:50,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 4 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 19 Unchecked, 0.0s Time] [2022-11-19 08:09:50,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-11-19 08:09:50,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 57. [2022-11-19 08:09:50,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 55 states have (on average 1.5272727272727273) internal successors, (84), 56 states have internal predecessors, (84), 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) [2022-11-19 08:09:50,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 84 transitions. [2022-11-19 08:09:50,257 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 84 transitions. Word has length 17 [2022-11-19 08:09:50,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:09:50,257 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 84 transitions. [2022-11-19 08:09:50,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2022-11-19 08:09:50,259 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 84 transitions. [2022-11-19 08:09:50,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-19 08:09:50,261 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:50,261 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:09:50,287 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS/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)] Forceful destruction successful, exit code 0 [2022-11-19 08:09:50,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 08:09:50,481 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-19 08:09:50,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:50,481 INFO L85 PathProgramCache]: Analyzing trace with hash -885151709, now seen corresponding path program 1 times [2022-11-19 08:09:50,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:09:50,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [310857197] [2022-11-19 08:09:50,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:09:50,482 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 [2022-11-19 08:09:50,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:09:50,485 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS/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) [2022-11-19 08:09:50,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 08:09:50,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:09:50,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:09:50,603 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:09:50,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:50,766 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:09:50,767 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:09:50,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [310857197] [2022-11-19 08:09:50,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [310857197] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:09:50,767 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:09:50,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 08:09:50,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012129356] [2022-11-19 08:09:50,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:09:50,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-19 08:09:50,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:09:50,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-19 08:09:50,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-19 08:09:50,769 INFO L87 Difference]: Start difference. First operand 57 states and 84 transitions. Second operand has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 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) [2022-11-19 08:09:50,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:09:50,994 INFO L93 Difference]: Finished difference Result 67 states and 94 transitions. [2022-11-19 08:09:50,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-19 08:09:50,995 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 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 17 [2022-11-19 08:09:50,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:09:50,996 INFO L225 Difference]: With dead ends: 67 [2022-11-19 08:09:50,996 INFO L226 Difference]: Without dead ends: 56 [2022-11-19 08:09:50,996 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-19 08:09:50,997 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 31 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:09:50,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 4 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 08:09:50,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-11-19 08:09:51,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 55. [2022-11-19 08:09:51,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 53 states have (on average 1.5660377358490567) internal successors, (83), 54 states have internal predecessors, (83), 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) [2022-11-19 08:09:51,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 83 transitions. [2022-11-19 08:09:51,001 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 83 transitions. Word has length 17 [2022-11-19 08:09:51,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:09:51,002 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 83 transitions. [2022-11-19 08:09:51,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 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) [2022-11-19 08:09:51,002 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 83 transitions. [2022-11-19 08:09:51,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-19 08:09:51,003 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:51,003 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:09:51,024 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 08:09:51,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 08:09:51,212 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-19 08:09:51,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:51,213 INFO L85 PathProgramCache]: Analyzing trace with hash 476231024, now seen corresponding path program 2 times [2022-11-19 08:09:51,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:09:51,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1715482474] [2022-11-19 08:09:51,213 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 08:09:51,213 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 [2022-11-19 08:09:51,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:09:51,217 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS/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) [2022-11-19 08:09:51,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 08:09:51,360 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-19 08:09:51,360 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:09:51,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 08:09:51,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:09:51,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:51,569 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:09:51,569 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:09:51,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1715482474] [2022-11-19 08:09:51,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1715482474] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:09:51,570 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:09:51,570 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:09:51,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317195596] [2022-11-19 08:09:51,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:09:51,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:09:51,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:09:51,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:09:51,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:09:51,571 INFO L87 Difference]: Start difference. First operand 55 states and 83 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2022-11-19 08:09:51,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:09:51,605 INFO L93 Difference]: Finished difference Result 86 states and 131 transitions. [2022-11-19 08:09:51,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:09:51,605 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 17 [2022-11-19 08:09:51,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:09:51,606 INFO L225 Difference]: With dead ends: 86 [2022-11-19 08:09:51,606 INFO L226 Difference]: Without dead ends: 68 [2022-11-19 08:09:51,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:09:51,607 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 1 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 19 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:09:51,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 4 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 19 Unchecked, 0.0s Time] [2022-11-19 08:09:51,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-11-19 08:09:51,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 54. [2022-11-19 08:09:51,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 52 states have (on average 1.5576923076923077) internal successors, (81), 53 states have internal predecessors, (81), 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) [2022-11-19 08:09:51,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 81 transitions. [2022-11-19 08:09:51,610 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 81 transitions. Word has length 17 [2022-11-19 08:09:51,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:09:51,610 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 81 transitions. [2022-11-19 08:09:51,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2022-11-19 08:09:51,611 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 81 transitions. [2022-11-19 08:09:51,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-19 08:09:51,611 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:51,611 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:09:51,628 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 08:09:51,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 08:09:51,812 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-19 08:09:51,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:51,812 INFO L85 PathProgramCache]: Analyzing trace with hash -13140506, now seen corresponding path program 3 times [2022-11-19 08:09:51,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:09:51,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [821817977] [2022-11-19 08:09:51,813 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 08:09:51,813 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 [2022-11-19 08:09:51,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:09:51,814 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS/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) [2022-11-19 08:09:51,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 08:09:51,959 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-19 08:09:51,959 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:09:51,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 08:09:51,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:09:52,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:52,150 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:09:52,150 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:09:52,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [821817977] [2022-11-19 08:09:52,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [821817977] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:09:52,151 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:09:52,151 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:09:52,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290168989] [2022-11-19 08:09:52,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:09:52,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:09:52,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:09:52,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:09:52,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:09:52,153 INFO L87 Difference]: Start difference. First operand 54 states and 81 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2022-11-19 08:09:52,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:09:52,174 INFO L93 Difference]: Finished difference Result 94 states and 140 transitions. [2022-11-19 08:09:52,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:09:52,175 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 17 [2022-11-19 08:09:52,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:09:52,175 INFO L225 Difference]: With dead ends: 94 [2022-11-19 08:09:52,176 INFO L226 Difference]: Without dead ends: 77 [2022-11-19 08:09:52,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:09:52,176 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 1 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 17 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:09:52,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 4 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 17 Unchecked, 0.0s Time] [2022-11-19 08:09:52,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-11-19 08:09:52,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2022-11-19 08:09:52,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 75 states have (on average 1.52) internal successors, (114), 76 states have internal predecessors, (114), 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) [2022-11-19 08:09:52,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 114 transitions. [2022-11-19 08:09:52,180 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 114 transitions. Word has length 17 [2022-11-19 08:09:52,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:09:52,181 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 114 transitions. [2022-11-19 08:09:52,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2022-11-19 08:09:52,181 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 114 transitions. [2022-11-19 08:09:52,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-19 08:09:52,182 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:52,182 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:09:52,210 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS/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)] Forceful destruction successful, exit code 0 [2022-11-19 08:09:52,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 08:09:52,399 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-19 08:09:52,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:52,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1487755441, now seen corresponding path program 2 times [2022-11-19 08:09:52,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:09:52,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1693890381] [2022-11-19 08:09:52,400 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 08:09:52,400 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 [2022-11-19 08:09:52,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:09:52,402 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS/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) [2022-11-19 08:09:52,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS/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 (10)] Waiting until timeout for monitored process [2022-11-19 08:09:52,525 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-19 08:09:52,525 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2022-11-19 08:09:52,525 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-19 08:09:52,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 08:09:52,635 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-19 08:09:52,635 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-19 08:09:52,636 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (9 of 10 remaining) [2022-11-19 08:09:52,638 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONMEMORY_LEAK (8 of 10 remaining) [2022-11-19 08:09:52,638 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 10 remaining) [2022-11-19 08:09:52,638 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 10 remaining) [2022-11-19 08:09:52,639 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 10 remaining) [2022-11-19 08:09:52,639 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 10 remaining) [2022-11-19 08:09:52,639 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (3 of 10 remaining) [2022-11-19 08:09:52,639 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 10 remaining) [2022-11-19 08:09:52,639 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 10 remaining) [2022-11-19 08:09:52,640 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 10 remaining) [2022-11-19 08:09:52,652 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS/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 (10)] Forceful destruction successful, exit code 0 [2022-11-19 08:09:52,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 08:09:52,842 INFO L444 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1] [2022-11-19 08:09:52,846 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-19 08:09:52,847 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 08:09:52,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:09:52 BasicIcfg [2022-11-19 08:09:52,911 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 08:09:52,912 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 08:09:52,912 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 08:09:52,923 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 08:09:52,924 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:09:39" (3/4) ... [2022-11-19 08:09:52,927 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-19 08:09:52,927 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 08:09:52,927 INFO L158 Benchmark]: Toolchain (without parser) took 15051.40ms. Allocated memory was 60.8MB in the beginning and 125.8MB in the end (delta: 65.0MB). Free memory was 40.1MB in the beginning and 37.7MB in the end (delta: 2.4MB). Peak memory consumption was 69.3MB. Max. memory is 16.1GB. [2022-11-19 08:09:52,928 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 60.8MB. Free memory was 42.9MB in the beginning and 42.9MB in the end (delta: 44.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:09:52,928 INFO L158 Benchmark]: CACSL2BoogieTranslator took 634.55ms. Allocated memory is still 60.8MB. Free memory was 39.9MB in the beginning and 35.4MB in the end (delta: 4.4MB). Peak memory consumption was 19.1MB. Max. memory is 16.1GB. [2022-11-19 08:09:52,928 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.13ms. Allocated memory is still 60.8MB. Free memory was 35.4MB in the beginning and 32.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 08:09:52,929 INFO L158 Benchmark]: Boogie Preprocessor took 51.33ms. Allocated memory is still 60.8MB. Free memory was 32.9MB in the beginning and 30.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 08:09:52,929 INFO L158 Benchmark]: RCFGBuilder took 903.66ms. Allocated memory was 60.8MB in the beginning and 86.0MB in the end (delta: 25.2MB). Free memory was 30.9MB in the beginning and 56.0MB in the end (delta: -25.1MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. [2022-11-19 08:09:52,930 INFO L158 Benchmark]: TraceAbstraction took 13391.83ms. Allocated memory was 86.0MB in the beginning and 125.8MB in the end (delta: 39.8MB). Free memory was 55.2MB in the beginning and 37.7MB in the end (delta: 17.5MB). Peak memory consumption was 58.4MB. Max. memory is 16.1GB. [2022-11-19 08:09:52,931 INFO L158 Benchmark]: Witness Printer took 15.30ms. Allocated memory is still 125.8MB. Free memory was 37.7MB in the beginning and 37.7MB in the end (delta: 2.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:09:52,933 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 60.8MB. Free memory was 42.9MB in the beginning and 42.9MB in the end (delta: 44.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 634.55ms. Allocated memory is still 60.8MB. Free memory was 39.9MB in the beginning and 35.4MB in the end (delta: 4.4MB). Peak memory consumption was 19.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.13ms. Allocated memory is still 60.8MB. Free memory was 35.4MB in the beginning and 32.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.33ms. Allocated memory is still 60.8MB. Free memory was 32.9MB in the beginning and 30.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 903.66ms. Allocated memory was 60.8MB in the beginning and 86.0MB in the end (delta: 25.2MB). Free memory was 30.9MB in the beginning and 56.0MB in the end (delta: -25.1MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. * TraceAbstraction took 13391.83ms. Allocated memory was 86.0MB in the beginning and 125.8MB in the end (delta: 39.8MB). Free memory was 55.2MB in the beginning and 37.7MB in the end (delta: 17.5MB). Peak memory consumption was 58.4MB. Max. memory is 16.1GB. * Witness Printer took 15.30ms. Allocated memory is still 125.8MB. Free memory was 37.7MB in the beginning and 37.7MB in the end (delta: 2.6kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.9s, 113 PlacesBefore, 33 PlacesAfterwards, 108 TransitionsBefore, 27 TransitionsAfterwards, 1444 CoEnabledTransitionPairs, 6 FixpointIterations, 54 TrivialSequentialCompositions, 49 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 113 TotalNumberOfCompositions, 3606 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2290, independent: 2172, independent conditional: 0, independent unconditional: 2172, dependent: 118, dependent conditional: 0, dependent unconditional: 118, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1091, independent: 1054, independent conditional: 0, independent unconditional: 1054, dependent: 37, dependent conditional: 0, dependent unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1091, independent: 1038, independent conditional: 0, independent unconditional: 1038, dependent: 53, dependent conditional: 0, dependent unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 53, independent: 16, independent conditional: 0, independent unconditional: 16, dependent: 37, dependent conditional: 0, dependent unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 385, independent: 34, independent conditional: 0, independent unconditional: 34, dependent: 351, dependent conditional: 0, dependent unconditional: 351, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2290, independent: 1118, independent conditional: 0, independent unconditional: 1118, dependent: 81, dependent conditional: 0, dependent unconditional: 81, unknown: 1091, unknown conditional: 0, unknown unconditional: 1091] , Statistics on independence cache: Total cache size (in pairs): 138, Positive cache size: 124, Positive conditional cache size: 0, Positive unconditional cache size: 124, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 18. Possible FailurePath: [L730] 0 _Bool z$r_buff1_thd2; [L728] 0 _Bool z$r_buff1_thd0; [L729] 0 _Bool z$r_buff1_thd1; [L737] 0 _Bool weak$$choice0; [L735] 0 int z$w_buff1; [L738] 0 _Bool weak$$choice2; [L710] 0 int __unbuffered_p0_EAX = 0; [L723] 0 _Bool z$flush_delayed; [L733] 0 int z$w_buff0; [L726] 0 _Bool z$r_buff0_thd1; [L727] 0 _Bool z$r_buff0_thd2; [L712] 0 int __unbuffered_p1_EAX = 0; [L725] 0 _Bool z$r_buff0_thd0; [L724] 0 int z$mem_tmp; [L731] 0 _Bool z$read_delayed; [L732] 0 int *z$read_delayed_var; [L736] 0 _Bool z$w_buff1_used; [L708] 0 int __unbuffered_cnt = 0; [L716] 0 _Bool main$tmp_guard1; [L715] 0 _Bool main$tmp_guard0; [L714] 0 int __unbuffered_p1_EBX = 0; [L734] 0 _Bool z$w_buff0_used; [L718] 0 int x = 0; [L720] 0 int y = 0; [L722] 0 int z = 0; [L817] 0 pthread_t t897; [L818] FCALL, FORK 0 pthread_create(&t897, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t897, ((void *)0), P0, ((void *)0))=0, t897={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L742] 1 z$w_buff1 = z$w_buff0 [L743] 1 z$w_buff0 = 1 [L744] 1 z$w_buff1_used = z$w_buff0_used [L745] 1 z$w_buff0_used = (_Bool)1 [L746] CALL 1 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L18] COND FALSE 1 !(!expression) [L746] RET 1 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L747] 1 z$r_buff1_thd0 = z$r_buff0_thd0 [L748] 1 z$r_buff1_thd1 = z$r_buff0_thd1 [L749] 1 z$r_buff1_thd2 = z$r_buff0_thd2 [L750] 1 z$r_buff0_thd1 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L753] 1 __unbuffered_p0_EAX = x VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L819] 0 pthread_t t898; [L820] FCALL, FORK 0 pthread_create(&t898, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t898, ((void *)0), P1, ((void *)0))=1, t897={3:0}, t898={7:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L770] 2 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L773] 2 y = 1 [L776] 2 __unbuffered_p1_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L779] 2 weak$$choice0 = __VERIFIER_nondet_bool() [L780] 2 weak$$choice2 = __VERIFIER_nondet_bool() [L781] 2 z$flush_delayed = weak$$choice2 [L782] 2 z$mem_tmp = z [L783] 2 z = !z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : z$w_buff1) [L784] 2 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : z$w_buff0)) [L785] 2 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff1 : z$w_buff1)) [L786] 2 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$w_buff0_used)) [L787] 2 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L788] 2 z$r_buff0_thd2 = weak$$choice2 ? z$r_buff0_thd2 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$r_buff0_thd2 : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$r_buff0_thd2)) [L789] 2 z$r_buff1_thd2 = weak$$choice2 ? z$r_buff1_thd2 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$r_buff1_thd2 : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L790] 2 __unbuffered_p1_EBX = z [L791] 2 z = z$flush_delayed ? z$mem_tmp : z [L792] 2 z$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=0, x=1, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L756] 1 z = z$w_buff0_used && z$r_buff0_thd1 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd1 ? z$w_buff1 : z) [L757] 1 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd1 ? (_Bool)0 : z$w_buff0_used [L758] 1 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd1 || z$w_buff1_used && z$r_buff1_thd1 ? (_Bool)0 : z$w_buff1_used [L759] 1 z$r_buff0_thd1 = z$w_buff0_used && z$r_buff0_thd1 ? (_Bool)0 : z$r_buff0_thd1 [L760] 1 z$r_buff1_thd1 = z$w_buff0_used && z$r_buff0_thd1 || z$w_buff1_used && z$r_buff1_thd1 ? (_Bool)0 : z$r_buff1_thd1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=0, x=1, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L763] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L765] 1 return 0; [L795] 2 z = z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd2 ? z$w_buff1 : z) [L796] 2 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$w_buff0_used [L797] 2 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd2 || z$w_buff1_used && z$r_buff1_thd2 ? (_Bool)0 : z$w_buff1_used [L798] 2 z$r_buff0_thd2 = z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$r_buff0_thd2 [L799] 2 z$r_buff1_thd2 = z$w_buff0_used && z$r_buff0_thd2 || z$w_buff1_used && z$r_buff1_thd2 ? (_Bool)0 : z$r_buff1_thd2 VAL [__unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=0, x=1, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L802] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L804] 2 return 0; [L822] 0 main$tmp_guard0 = __unbuffered_cnt == 2 [L824] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L824] RET 0 assume_abort_if_not(main$tmp_guard0) [L826] 0 z = z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L827] 0 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L828] 0 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L829] 0 z$r_buff0_thd0 = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L830] 0 z$r_buff1_thd0 = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t897={3:0}, t898={7:0}, weak$$choice0=2, weak$$choice2=0, x=1, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L833] 0 main$tmp_guard1 = !(__unbuffered_p0_EAX == 0 && __unbuffered_p1_EAX == 1 && __unbuffered_p1_EBX == 0) [L835] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\old(expression)=1, \old(expression)=0, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, expression=1, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=0, x=1, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 815]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 820]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 818]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 128 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 13.2s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 8.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 93 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 93 mSDsluCounter, 32 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 55 IncrementalHoareTripleChecker+Unchecked, 18 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 391 IncrementalHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 14 mSDtfsCounter, 391 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 89 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=256occurred in iteration=0, InterpolantAutomatonStates: 36, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 36 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 109 NumberOfCodeBlocks, 109 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 84 ConstructedInterpolants, 33 QuantifiedInterpolants, 1158 SizeOfPredicates, 9 NumberOfNonLiveVariables, 819 ConjunctsInSsa, 58 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 [2022-11-19 08:09:52,961 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a6013f-75a3-42e1-8375-11ce685a1f7c/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample