./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_12-arraycollapse_rc-deref.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c2d8ab-f921-4db5-ae17-d23473f9ac78/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c2d8ab-f921-4db5-ae17-d23473f9ac78/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_31c2d8ab-f921-4db5-ae17-d23473f9ac78/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c2d8ab-f921-4db5-ae17-d23473f9ac78/bin/utaipan-I9t0OCRTmS/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_12-arraycollapse_rc-deref.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c2d8ab-f921-4db5-ae17-d23473f9ac78/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_31c2d8ab-f921-4db5-ae17-d23473f9ac78/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 573c853979782f78b60122afde2824ab47c3f9d6394b4ee74285d458320f7321 --- 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 08:36:03,670 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:36:03,672 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:36:03,699 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:36:03,700 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:36:03,701 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:36:03,703 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:36:03,706 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:36:03,708 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:36:03,709 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:36:03,711 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:36:03,712 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:36:03,713 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:36:03,714 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:36:03,716 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:36:03,718 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:36:03,719 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:36:03,720 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:36:03,722 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:36:03,725 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:36:03,727 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:36:03,736 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:36:03,737 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:36:03,739 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:36:03,743 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:36:03,753 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:36:03,754 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:36:03,755 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:36:03,756 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:36:03,757 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:36:03,758 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:36:03,759 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:36:03,760 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:36:03,761 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:36:03,764 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:36:03,766 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:36:03,767 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:36:03,769 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:36:03,769 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:36:03,770 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:36:03,772 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:36:03,773 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c2d8ab-f921-4db5-ae17-d23473f9ac78/bin/utaipan-I9t0OCRTmS/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-11-19 08:36:03,804 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:36:03,805 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:36:03,805 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:36:03,805 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:36:03,806 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:36:03,806 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:36:03,807 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:36:03,807 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:36:03,807 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:36:03,807 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:36:03,808 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:36:03,808 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:36:03,808 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:36:03,808 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:36:03,809 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:36:03,809 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:36:03,809 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:36:03,809 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:36:03,810 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-19 08:36:03,810 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-19 08:36:03,811 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:36:03,811 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 08:36:03,811 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-19 08:36:03,811 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:36:03,812 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 08:36:03,812 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:36:03,812 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-19 08:36:03,812 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-19 08:36:03,813 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-19 08:36:03,813 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:36:03,813 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-19 08:36:03,813 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 08:36:03,814 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:36:03,814 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:36:03,814 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:36:03,814 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:36:03,815 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:36:03,815 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:36:03,815 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:36:03,815 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:36:03,816 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:36:03,816 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:36:03,816 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_31c2d8ab-f921-4db5-ae17-d23473f9ac78/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c2d8ab-f921-4db5-ae17-d23473f9ac78/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 573c853979782f78b60122afde2824ab47c3f9d6394b4ee74285d458320f7321 [2022-11-19 08:36:04,143 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:36:04,169 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:36:04,172 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:36:04,174 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:36:04,175 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:36:04,176 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c2d8ab-f921-4db5-ae17-d23473f9ac78/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/goblint-regression/09-regions_12-arraycollapse_rc-deref.i [2022-11-19 08:36:04,276 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c2d8ab-f921-4db5-ae17-d23473f9ac78/bin/utaipan-I9t0OCRTmS/data/408932592/9ec82b01221f4503ad3934b788940aa5/FLAG40b80a134 [2022-11-19 08:36:05,102 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:36:05,103 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c2d8ab-f921-4db5-ae17-d23473f9ac78/sv-benchmarks/c/goblint-regression/09-regions_12-arraycollapse_rc-deref.i [2022-11-19 08:36:05,131 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c2d8ab-f921-4db5-ae17-d23473f9ac78/bin/utaipan-I9t0OCRTmS/data/408932592/9ec82b01221f4503ad3934b788940aa5/FLAG40b80a134 [2022-11-19 08:36:05,294 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c2d8ab-f921-4db5-ae17-d23473f9ac78/bin/utaipan-I9t0OCRTmS/data/408932592/9ec82b01221f4503ad3934b788940aa5 [2022-11-19 08:36:05,300 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:36:05,302 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:36:05,308 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:36:05,309 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:36:05,313 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:36:05,314 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:36:05" (1/1) ... [2022-11-19 08:36:05,317 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2579727 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:36:05, skipping insertion in model container [2022-11-19 08:36:05,318 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:36:05" (1/1) ... [2022-11-19 08:36:05,326 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:36:05,401 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:36:06,454 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:36:06,481 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:36:06,578 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:36:06,688 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:36:06,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:36:06 WrapperNode [2022-11-19 08:36:06,690 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:36:06,691 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:36:06,691 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:36:06,691 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:36:06,700 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:36:06" (1/1) ... [2022-11-19 08:36:06,735 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:36:06" (1/1) ... [2022-11-19 08:36:06,791 INFO L138 Inliner]: procedures = 370, calls = 41, calls flagged for inlining = 16, calls inlined = 16, statements flattened = 185 [2022-11-19 08:36:06,791 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:36:06,795 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:36:06,795 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:36:06,796 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:36:06,806 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:36:06" (1/1) ... [2022-11-19 08:36:06,806 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:36:06" (1/1) ... [2022-11-19 08:36:06,825 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:36:06" (1/1) ... [2022-11-19 08:36:06,839 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:36:06" (1/1) ... [2022-11-19 08:36:06,850 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:36:06" (1/1) ... [2022-11-19 08:36:06,854 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:36:06" (1/1) ... [2022-11-19 08:36:06,864 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:36:06" (1/1) ... [2022-11-19 08:36:06,866 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:36:06" (1/1) ... [2022-11-19 08:36:06,870 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:36:06,871 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:36:06,871 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:36:06,871 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:36:06,872 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:36:06" (1/1) ... [2022-11-19 08:36:06,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:36:06,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c2d8ab-f921-4db5-ae17-d23473f9ac78/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:36:06,918 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c2d8ab-f921-4db5-ae17-d23473f9ac78/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:36:06,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c2d8ab-f921-4db5-ae17-d23473f9ac78/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:36:06,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 08:36:06,974 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 08:36:06,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 08:36:06,975 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 08:36:06,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 08:36:06,975 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-19 08:36:06,975 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 08:36:06,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:36:06,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 08:36:06,976 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-19 08:36:06,976 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-19 08:36:06,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:36:06,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:36:06,979 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 08:36:07,215 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:36:07,217 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:36:08,042 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:36:08,054 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:36:08,055 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-19 08:36:08,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:36:08 BoogieIcfgContainer [2022-11-19 08:36:08,058 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:36:08,060 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:36:08,061 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:36:08,068 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:36:08,069 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:36:05" (1/3) ... [2022-11-19 08:36:08,071 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@260278b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:36:08, skipping insertion in model container [2022-11-19 08:36:08,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:36:06" (2/3) ... [2022-11-19 08:36:08,072 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@260278b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:36:08, skipping insertion in model container [2022-11-19 08:36:08,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:36:08" (3/3) ... [2022-11-19 08:36:08,075 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_12-arraycollapse_rc-deref.i [2022-11-19 08:36:08,097 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:36:08,098 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 77 error locations. [2022-11-19 08:36:08,099 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-19 08:36:08,264 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-19 08:36:08,330 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-19 08:36:08,352 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 318 places, 319 transitions, 643 flow [2022-11-19 08:36:08,358 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 318 places, 319 transitions, 643 flow [2022-11-19 08:36:08,360 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 318 places, 319 transitions, 643 flow [2022-11-19 08:36:08,571 INFO L130 PetriNetUnfolder]: 5/318 cut-off events. [2022-11-19 08:36:08,572 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-19 08:36:08,581 INFO L83 FinitePrefix]: Finished finitePrefix Result has 322 conditions, 318 events. 5/318 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 313 event pairs, 0 based on Foata normal form. 0/236 useless extension candidates. Maximal degree in co-relation 233. Up to 2 conditions per place. [2022-11-19 08:36:08,625 INFO L119 LiptonReduction]: Number of co-enabled transitions 3136 [2022-11-19 08:37:37,738 WARN L233 SmtUtils]: Spent 5.58s on a formula simplification that was a NOOP. DAG size: 218 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-19 08:37:47,173 WARN L233 SmtUtils]: Spent 5.20s on a formula simplification that was a NOOP. DAG size: 218 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-19 08:38:02,316 WARN L233 SmtUtils]: Spent 11.75s on a formula simplification. DAG size of input: 246 DAG size of output: 244 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-19 08:38:17,690 WARN L233 SmtUtils]: Spent 12.82s on a formula simplification. DAG size of input: 246 DAG size of output: 244 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-19 08:38:35,483 WARN L233 SmtUtils]: Spent 14.27s on a formula simplification. DAG size of input: 241 DAG size of output: 239 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-19 08:38:54,045 WARN L233 SmtUtils]: Spent 15.24s on a formula simplification. DAG size of input: 244 DAG size of output: 242 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-19 08:39:02,983 WARN L233 SmtUtils]: Spent 5.32s on a formula simplification. DAG size of input: 176 DAG size of output: 174 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-19 08:39:12,070 WARN L233 SmtUtils]: Spent 6.27s on a formula simplification. DAG size of input: 176 DAG size of output: 174 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-19 08:39:42,875 WARN L233 SmtUtils]: Spent 19.61s on a formula simplification. DAG size of input: 256 DAG size of output: 254 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-19 08:40:07,421 WARN L233 SmtUtils]: Spent 20.08s on a formula simplification. DAG size of input: 253 DAG size of output: 251 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-19 08:42:43,457 WARN L233 SmtUtils]: Spent 2.55m on a formula simplification. DAG size of input: 350 DAG size of output: 338 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-19 08:43:35,202 WARN L233 SmtUtils]: Spent 51.72s on a formula simplification that was a NOOP. DAG size: 300 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-19 08:46:36,681 WARN L233 SmtUtils]: Spent 3.02m on a formula simplification. DAG size of input: 347 DAG size of output: 335 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-19 08:47:44,526 WARN L233 SmtUtils]: Spent 1.13m on a formula simplification that was a NOOP. DAG size: 297 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-19 08:50:02,412 WARN L233 SmtUtils]: Spent 2.29m on a formula simplification. DAG size of input: 335 DAG size of output: 319 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-19 08:50:51,170 WARN L233 SmtUtils]: Spent 48.74s on a formula simplification that was a NOOP. DAG size: 283 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)