./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_13-arraycollapse_nr-deref.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 6b4ec56b 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_488cf006-708e-40f5-b387-dcb16d62b244/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_488cf006-708e-40f5-b387-dcb16d62b244/bin/utaipan-6cKwYrpEi9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_488cf006-708e-40f5-b387-dcb16d62b244/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_488cf006-708e-40f5-b387-dcb16d62b244/bin/utaipan-6cKwYrpEi9/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_13-arraycollapse_nr-deref.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_488cf006-708e-40f5-b387-dcb16d62b244/bin/utaipan-6cKwYrpEi9/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_488cf006-708e-40f5-b387-dcb16d62b244/bin/utaipan-6cKwYrpEi9 --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 e8cd6f4fedd4ae62debc23b5e2621fa19163a924ac1cc7b32aeb6e38c2fa5ce1 --- 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-6b4ec56 [2022-11-20 19:59:10,808 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 19:59:10,811 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 19:59:10,853 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 19:59:10,854 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 19:59:10,858 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 19:59:10,861 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 19:59:10,864 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 19:59:10,866 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 19:59:10,871 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 19:59:10,873 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 19:59:10,874 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 19:59:10,876 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 19:59:10,878 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 19:59:10,880 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 19:59:10,885 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 19:59:10,887 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 19:59:10,888 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 19:59:10,889 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 19:59:10,893 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 19:59:10,898 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 19:59:10,899 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 19:59:10,900 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 19:59:10,901 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 19:59:10,904 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 19:59:10,905 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 19:59:10,905 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 19:59:10,906 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 19:59:10,906 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 19:59:10,907 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 19:59:10,908 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 19:59:10,908 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 19:59:10,909 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 19:59:10,910 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 19:59:10,911 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 19:59:10,911 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 19:59:10,912 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 19:59:10,912 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 19:59:10,913 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 19:59:10,913 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 19:59:10,914 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 19:59:10,915 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_488cf006-708e-40f5-b387-dcb16d62b244/bin/utaipan-6cKwYrpEi9/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-11-20 19:59:10,937 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 19:59:10,937 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 19:59:10,938 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 19:59:10,938 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 19:59:10,938 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 19:59:10,939 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 19:59:10,939 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 19:59:10,939 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 19:59:10,939 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 19:59:10,939 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-20 19:59:10,940 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 19:59:10,940 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 19:59:10,940 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-20 19:59:10,940 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-20 19:59:10,940 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 19:59:10,940 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-20 19:59:10,941 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-20 19:59:10,941 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-20 19:59:10,941 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 19:59:10,942 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 19:59:10,942 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 19:59:10,942 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 19:59:10,942 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 19:59:10,942 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 19:59:10,943 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 19:59:10,943 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 19:59:10,943 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-20 19:59:10,943 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-20 19:59:10,943 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-20 19:59:10,943 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 19:59:10,944 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 19:59:10,944 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 19:59:10,944 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 19:59:10,944 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 19:59:10,944 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 19:59:10,945 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 19:59:10,945 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 19:59:10,945 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-20 19:59:10,945 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 19:59:10,945 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-20 19:59:10,946 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 19:59:10,946 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 19:59:10,946 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_488cf006-708e-40f5-b387-dcb16d62b244/bin/utaipan-6cKwYrpEi9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_488cf006-708e-40f5-b387-dcb16d62b244/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e8cd6f4fedd4ae62debc23b5e2621fa19163a924ac1cc7b32aeb6e38c2fa5ce1 [2022-11-20 19:59:11,261 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 19:59:11,289 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 19:59:11,293 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 19:59:11,294 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 19:59:11,295 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 19:59:11,296 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_488cf006-708e-40f5-b387-dcb16d62b244/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/goblint-regression/09-regions_13-arraycollapse_nr-deref.i [2022-11-20 19:59:14,397 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 19:59:14,814 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 19:59:14,814 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_488cf006-708e-40f5-b387-dcb16d62b244/sv-benchmarks/c/goblint-regression/09-regions_13-arraycollapse_nr-deref.i [2022-11-20 19:59:14,838 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_488cf006-708e-40f5-b387-dcb16d62b244/bin/utaipan-6cKwYrpEi9/data/226286a50/af994cb6777a4f7c91ef6a2c2f0e5e2b/FLAGe2d78e83c [2022-11-20 19:59:14,854 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_488cf006-708e-40f5-b387-dcb16d62b244/bin/utaipan-6cKwYrpEi9/data/226286a50/af994cb6777a4f7c91ef6a2c2f0e5e2b [2022-11-20 19:59:14,857 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 19:59:14,858 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 19:59:14,860 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 19:59:14,860 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 19:59:14,864 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 19:59:14,865 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:59:14" (1/1) ... [2022-11-20 19:59:14,866 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43e8977b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:59:14, skipping insertion in model container [2022-11-20 19:59:14,866 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:59:14" (1/1) ... [2022-11-20 19:59:14,874 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 19:59:14,917 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 19:59:15,548 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 19:59:15,578 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 19:59:15,656 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 19:59:15,760 INFO L208 MainTranslator]: Completed translation [2022-11-20 19:59:15,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:59:15 WrapperNode [2022-11-20 19:59:15,761 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 19:59:15,762 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 19:59:15,762 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 19:59:15,763 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 19:59:15,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:59:15" (1/1) ... [2022-11-20 19:59:15,807 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:59:15" (1/1) ... [2022-11-20 19:59:15,843 INFO L138 Inliner]: procedures = 370, calls = 42, calls flagged for inlining = 17, calls inlined = 17, statements flattened = 196 [2022-11-20 19:59:15,843 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 19:59:15,844 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 19:59:15,845 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 19:59:15,845 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 19:59:15,856 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:59:15" (1/1) ... [2022-11-20 19:59:15,857 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:59:15" (1/1) ... [2022-11-20 19:59:15,862 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:59:15" (1/1) ... [2022-11-20 19:59:15,863 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:59:15" (1/1) ... [2022-11-20 19:59:15,877 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:59:15" (1/1) ... [2022-11-20 19:59:15,881 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:59:15" (1/1) ... [2022-11-20 19:59:15,885 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:59:15" (1/1) ... [2022-11-20 19:59:15,887 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:59:15" (1/1) ... [2022-11-20 19:59:15,892 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 19:59:15,893 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 19:59:15,893 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 19:59:15,894 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 19:59:15,895 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:59:15" (1/1) ... [2022-11-20 19:59:15,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 19:59:15,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_488cf006-708e-40f5-b387-dcb16d62b244/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 19:59:15,944 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_488cf006-708e-40f5-b387-dcb16d62b244/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 19:59:15,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_488cf006-708e-40f5-b387-dcb16d62b244/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 19:59:15,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 19:59:15,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 19:59:15,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 19:59:15,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 19:59:15,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 19:59:15,999 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-20 19:59:15,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 19:59:15,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 19:59:15,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 19:59:15,999 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-20 19:59:16,000 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-20 19:59:16,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 19:59:16,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 19:59:16,002 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 19:59:16,229 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 19:59:16,232 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 19:59:17,223 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 19:59:17,235 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 19:59:17,235 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 19:59:17,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:59:17 BoogieIcfgContainer [2022-11-20 19:59:17,238 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 19:59:17,240 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 19:59:17,240 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 19:59:17,244 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 19:59:17,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:59:14" (1/3) ... [2022-11-20 19:59:17,245 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@742ca472 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:59:17, skipping insertion in model container [2022-11-20 19:59:17,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:59:15" (2/3) ... [2022-11-20 19:59:17,246 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@742ca472 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:59:17, skipping insertion in model container [2022-11-20 19:59:17,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:59:17" (3/3) ... [2022-11-20 19:59:17,247 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_13-arraycollapse_nr-deref.i [2022-11-20 19:59:17,267 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 19:59:17,268 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 81 error locations. [2022-11-20 19:59:17,268 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 19:59:17,357 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-20 19:59:17,397 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-20 19:59:17,413 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 337 places, 338 transitions, 681 flow [2022-11-20 19:59:17,416 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 337 places, 338 transitions, 681 flow [2022-11-20 19:59:17,418 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 337 places, 338 transitions, 681 flow [2022-11-20 19:59:17,553 INFO L130 PetriNetUnfolder]: 5/337 cut-off events. [2022-11-20 19:59:17,553 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 19:59:17,559 INFO L83 FinitePrefix]: Finished finitePrefix Result has 341 conditions, 337 events. 5/337 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 326 event pairs, 0 based on Foata normal form. 0/251 useless extension candidates. Maximal degree in co-relation 252. Up to 2 conditions per place. [2022-11-20 19:59:17,562 INFO L119 LiptonReduction]: Number of co-enabled transitions 3136 [2022-11-20 20:00:19,820 WARN L233 SmtUtils]: Spent 5.26s on a formula simplification. DAG size of input: 195 DAG size of output: 189 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-20 20:00:37,385 WARN L233 SmtUtils]: Spent 12.30s on a formula simplification. DAG size of input: 211 DAG size of output: 205 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-20 20:00:45,783 WARN L233 SmtUtils]: Spent 5.59s on a formula simplification. DAG size of input: 208 DAG size of output: 202 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-20 20:02:56,892 WARN L233 SmtUtils]: Spent 1.46m on a formula simplification. DAG size of input: 294 DAG size of output: 284 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-20 20:03:30,854 WARN L233 SmtUtils]: Spent 33.94s on a formula simplification that was a NOOP. DAG size: 266 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-20 20:04:41,804 WARN L233 SmtUtils]: Spent 1.18m on a formula simplification. DAG size of input: 292 DAG size of output: 282 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-20 20:05:10,482 WARN L233 SmtUtils]: Spent 28.67s on a formula simplification that was a NOOP. DAG size: 266 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-20 20:05:21,677 WARN L233 SmtUtils]: Spent 11.02s on a formula simplification. DAG size of input: 227 DAG size of output: 221 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-20 20:05:28,288 WARN L233 SmtUtils]: Spent 6.61s on a formula simplification that was a NOOP. DAG size: 213 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-20 20:05:39,122 WARN L233 SmtUtils]: Spent 10.83s on a formula simplification. DAG size of input: 224 DAG size of output: 218 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-20 20:05:45,542 WARN L233 SmtUtils]: Spent 6.42s on a formula simplification that was a NOOP. DAG size: 210 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-20 20:06:15,082 WARN L233 SmtUtils]: Spent 29.54s on a formula simplification. DAG size of input: 241 DAG size of output: 235 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-20 20:06:28,231 WARN L233 SmtUtils]: Spent 13.15s on a formula simplification that was a NOOP. DAG size: 227 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-20 20:06:50,902 WARN L233 SmtUtils]: Spent 22.67s on a formula simplification. DAG size of input: 238 DAG size of output: 232 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-20 20:07:08,434 WARN L233 SmtUtils]: Spent 17.53s on a formula simplification that was a NOOP. DAG size: 224 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-20 20:07:24,039 WARN L233 SmtUtils]: Spent 15.55s on a formula simplification. DAG size of input: 222 DAG size of output: 216 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-20 20:07:30,788 WARN L233 SmtUtils]: Spent 6.74s on a formula simplification that was a NOOP. DAG size: 208 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-20 20:07:41,937 WARN L233 SmtUtils]: Spent 11.15s on a formula simplification. DAG size of input: 219 DAG size of output: 213 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)