./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 4e7fbc69 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_821eb3b8-f460-4a27-bb1d-d41fcd060528/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_821eb3b8-f460-4a27-bb1d-d41fcd060528/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_821eb3b8-f460-4a27-bb1d-d41fcd060528/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_821eb3b8-f460-4a27-bb1d-d41fcd060528/bin/utaipan-Q6hlc19bkW/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_821eb3b8-f460-4a27-bb1d-d41fcd060528/bin/utaipan-Q6hlc19bkW/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_821eb3b8-f460-4a27-bb1d-d41fcd060528/bin/utaipan-Q6hlc19bkW --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-4e7fbc6 [2022-11-23 14:06:48,960 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:06:48,962 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:06:49,005 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:06:49,008 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:06:49,013 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:06:49,015 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:06:49,019 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:06:49,023 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:06:49,027 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:06:49,030 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:06:49,032 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:06:49,033 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:06:49,041 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:06:49,043 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:06:49,045 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:06:49,051 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:06:49,053 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:06:49,054 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:06:49,058 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:06:49,060 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:06:49,066 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:06:49,068 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:06:49,070 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:06:49,074 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:06:49,077 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:06:49,078 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:06:49,079 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:06:49,081 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:06:49,083 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:06:49,085 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:06:49,086 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:06:49,087 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:06:49,089 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:06:49,091 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:06:49,091 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:06:49,092 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:06:49,093 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:06:49,093 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:06:49,095 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:06:49,096 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:06:49,097 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_821eb3b8-f460-4a27-bb1d-d41fcd060528/bin/utaipan-Q6hlc19bkW/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-11-23 14:06:49,141 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:06:49,142 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:06:49,142 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:06:49,143 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:06:49,144 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:06:49,144 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:06:49,144 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:06:49,144 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:06:49,145 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:06:49,145 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:06:49,146 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:06:49,146 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:06:49,146 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:06:49,147 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:06:49,147 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:06:49,147 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:06:49,148 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:06:49,148 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:06:49,148 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 14:06:49,149 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 14:06:49,149 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:06:49,149 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 14:06:49,149 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 14:06:49,150 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:06:49,150 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 14:06:49,151 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:06:49,151 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-23 14:06:49,151 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-23 14:06:49,152 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-23 14:06:49,152 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:06:49,152 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-23 14:06:49,152 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 14:06:49,153 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:06:49,153 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:06:49,153 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:06:49,153 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:06:49,154 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:06:49,154 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:06:49,154 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:06:49,154 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:06:49,155 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:06:49,155 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:06:49,155 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_821eb3b8-f460-4a27-bb1d-d41fcd060528/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_821eb3b8-f460-4a27-bb1d-d41fcd060528/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 573c853979782f78b60122afde2824ab47c3f9d6394b4ee74285d458320f7321 [2022-11-23 14:06:49,510 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:06:49,559 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:06:49,563 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:06:49,564 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:06:49,565 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:06:49,566 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_821eb3b8-f460-4a27-bb1d-d41fcd060528/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/goblint-regression/09-regions_12-arraycollapse_rc-deref.i [2022-11-23 14:06:52,652 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:06:53,015 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:06:53,023 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_821eb3b8-f460-4a27-bb1d-d41fcd060528/sv-benchmarks/c/goblint-regression/09-regions_12-arraycollapse_rc-deref.i [2022-11-23 14:06:53,040 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_821eb3b8-f460-4a27-bb1d-d41fcd060528/bin/utaipan-Q6hlc19bkW/data/17d323550/593c698b8eef4ff3b83bf71b6ea4d67f/FLAGd16777b90 [2022-11-23 14:06:53,055 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_821eb3b8-f460-4a27-bb1d-d41fcd060528/bin/utaipan-Q6hlc19bkW/data/17d323550/593c698b8eef4ff3b83bf71b6ea4d67f [2022-11-23 14:06:53,058 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:06:53,059 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:06:53,061 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:06:53,061 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:06:53,065 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:06:53,066 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:06:53" (1/1) ... [2022-11-23 14:06:53,067 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1701b5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:53, skipping insertion in model container [2022-11-23 14:06:53,067 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:06:53" (1/1) ... [2022-11-23 14:06:53,075 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:06:53,153 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:06:53,841 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:06:53,870 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:06:53,916 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:06:54,002 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:06:54,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:54 WrapperNode [2022-11-23 14:06:54,002 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:06:54,004 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:06:54,004 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:06:54,004 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:06:54,012 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:54" (1/1) ... [2022-11-23 14:06:54,039 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:54" (1/1) ... [2022-11-23 14:06:54,096 INFO L138 Inliner]: procedures = 370, calls = 41, calls flagged for inlining = 16, calls inlined = 16, statements flattened = 185 [2022-11-23 14:06:54,099 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:06:54,100 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:06:54,101 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:06:54,101 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:06:54,111 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:54" (1/1) ... [2022-11-23 14:06:54,111 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:54" (1/1) ... [2022-11-23 14:06:54,129 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:54" (1/1) ... [2022-11-23 14:06:54,138 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:54" (1/1) ... [2022-11-23 14:06:54,149 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:54" (1/1) ... [2022-11-23 14:06:54,166 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:54" (1/1) ... [2022-11-23 14:06:54,168 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:54" (1/1) ... [2022-11-23 14:06:54,170 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:54" (1/1) ... [2022-11-23 14:06:54,173 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:06:54,187 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:06:54,187 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:06:54,188 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:06:54,189 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:54" (1/1) ... [2022-11-23 14:06:54,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:06:54,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_821eb3b8-f460-4a27-bb1d-d41fcd060528/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:06:54,226 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_821eb3b8-f460-4a27-bb1d-d41fcd060528/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:06:54,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_821eb3b8-f460-4a27-bb1d-d41fcd060528/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:06:54,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 14:06:54,266 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 14:06:54,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 14:06:54,266 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 14:06:54,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 14:06:54,267 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-23 14:06:54,267 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 14:06:54,267 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:06:54,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 14:06:54,267 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-23 14:06:54,267 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-23 14:06:54,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:06:54,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:06:54,269 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-23 14:06:54,464 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:06:54,466 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:06:55,242 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:06:55,260 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:06:55,260 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 14:06:55,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:06:55 BoogieIcfgContainer [2022-11-23 14:06:55,264 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:06:55,267 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:06:55,267 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:06:55,271 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:06:55,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:06:53" (1/3) ... [2022-11-23 14:06:55,274 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a0ed4c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:06:55, skipping insertion in model container [2022-11-23 14:06:55,275 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:54" (2/3) ... [2022-11-23 14:06:55,275 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a0ed4c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:06:55, skipping insertion in model container [2022-11-23 14:06:55,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:06:55" (3/3) ... [2022-11-23 14:06:55,277 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_12-arraycollapse_rc-deref.i [2022-11-23 14:06:55,299 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:06:55,300 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 77 error locations. [2022-11-23 14:06:55,300 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 14:06:55,429 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-23 14:06:55,473 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 14:06:55,488 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 318 places, 319 transitions, 643 flow [2022-11-23 14:06:55,491 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 318 places, 319 transitions, 643 flow [2022-11-23 14:06:55,493 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 318 places, 319 transitions, 643 flow [2022-11-23 14:06:55,614 INFO L130 PetriNetUnfolder]: 5/318 cut-off events. [2022-11-23 14:06:55,614 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 14:06:55,629 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. [2022-11-23 14:06:55,635 INFO L119 LiptonReduction]: Number of co-enabled transitions 3136 [2022-11-23 14:08:18,550 WARN L233 SmtUtils]: Spent 5.12s 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) [2022-11-23 14:08:41,035 WARN L233 SmtUtils]: Spent 10.76s 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) [2022-11-23 14:08:55,258 WARN L233 SmtUtils]: Spent 11.98s 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) [2022-11-23 14:09:10,501 WARN L233 SmtUtils]: Spent 12.39s 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) [2022-11-23 14:09:26,234 WARN L233 SmtUtils]: Spent 13.13s 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) [2022-11-23 14:10:05,616 WARN L233 SmtUtils]: Spent 15.32s 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) [2022-11-23 14:10:26,087 WARN L233 SmtUtils]: Spent 16.86s 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) [2022-11-23 14:12:47,427 WARN L233 SmtUtils]: Spent 2.31m 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) [2022-11-23 14:13:34,413 WARN L233 SmtUtils]: Spent 46.97s 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) [2022-11-23 14:16:09,630 WARN L233 SmtUtils]: Spent 2.59m 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) [2022-11-23 14:17:09,824 WARN L233 SmtUtils]: Spent 1.00m 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) [2022-11-23 14:19:13,663 WARN L233 SmtUtils]: Spent 2.06m 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) [2022-11-23 14:19:51,745 WARN L233 SmtUtils]: Spent 38.07s 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) [2022-11-23 14:21:53,294 WARN L233 SmtUtils]: Spent 2.03m on a formula simplification. DAG size of input: 338 DAG size of output: 322 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)