./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b5237d83 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_d123b59b-d90e-4112-96b1-84789e2892a0/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d123b59b-d90e-4112-96b1-84789e2892a0/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d123b59b-d90e-4112-96b1-84789e2892a0/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d123b59b-d90e-4112-96b1-84789e2892a0/bin/utaipan-g80aRyZoba/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d123b59b-d90e-4112-96b1-84789e2892a0/bin/utaipan-g80aRyZoba/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d123b59b-d90e-4112-96b1-84789e2892a0/bin/utaipan-g80aRyZoba --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 9466f27e00e9305501eee0377198b5d988616fcd0740d7b6b046dc1579fad0d0 --- 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-b5237d8 [2022-11-22 02:33:28,886 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 02:33:28,888 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 02:33:28,923 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 02:33:28,924 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 02:33:28,928 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 02:33:28,931 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 02:33:28,935 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 02:33:28,938 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 02:33:28,944 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 02:33:28,947 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 02:33:28,949 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 02:33:28,950 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 02:33:28,953 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 02:33:28,956 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 02:33:28,958 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 02:33:28,960 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 02:33:28,962 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 02:33:28,963 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 02:33:28,972 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 02:33:28,973 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 02:33:28,976 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 02:33:28,978 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 02:33:28,979 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 02:33:28,991 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 02:33:28,992 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 02:33:28,992 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 02:33:28,995 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 02:33:28,995 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 02:33:28,998 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 02:33:28,999 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 02:33:29,000 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 02:33:29,003 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 02:33:29,004 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 02:33:29,006 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 02:33:29,007 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 02:33:29,008 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 02:33:29,008 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 02:33:29,008 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 02:33:29,011 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 02:33:29,012 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 02:33:29,013 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d123b59b-d90e-4112-96b1-84789e2892a0/bin/utaipan-g80aRyZoba/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-11-22 02:33:29,050 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 02:33:29,053 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 02:33:29,054 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 02:33:29,054 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 02:33:29,055 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 02:33:29,055 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 02:33:29,056 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 02:33:29,056 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 02:33:29,056 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 02:33:29,057 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 02:33:29,058 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 02:33:29,058 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 02:33:29,059 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 02:33:29,059 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 02:33:29,059 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 02:33:29,059 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 02:33:29,060 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 02:33:29,060 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 02:33:29,061 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-22 02:33:29,062 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-22 02:33:29,062 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 02:33:29,062 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 02:33:29,063 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 02:33:29,063 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 02:33:29,063 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 02:33:29,063 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 02:33:29,064 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-22 02:33:29,064 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-22 02:33:29,064 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-22 02:33:29,065 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 02:33:29,065 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-22 02:33:29,065 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 02:33:29,065 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 02:33:29,066 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 02:33:29,066 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 02:33:29,066 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:33:29,067 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 02:33:29,067 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 02:33:29,067 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 02:33:29,067 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 02:33:29,068 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 02:33:29,068 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 02:33:29,068 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_d123b59b-d90e-4112-96b1-84789e2892a0/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d123b59b-d90e-4112-96b1-84789e2892a0/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9466f27e00e9305501eee0377198b5d988616fcd0740d7b6b046dc1579fad0d0 [2022-11-22 02:33:29,422 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 02:33:29,458 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 02:33:29,461 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 02:33:29,463 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 02:33:29,463 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 02:33:29,465 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d123b59b-d90e-4112-96b1-84789e2892a0/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i [2022-11-22 02:33:32,879 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 02:33:33,203 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 02:33:33,204 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d123b59b-d90e-4112-96b1-84789e2892a0/sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i [2022-11-22 02:33:33,217 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d123b59b-d90e-4112-96b1-84789e2892a0/bin/utaipan-g80aRyZoba/data/2dc2a00c8/412d69fccd1d4b4ab064d597215b6dec/FLAG0596e6d42 [2022-11-22 02:33:33,232 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d123b59b-d90e-4112-96b1-84789e2892a0/bin/utaipan-g80aRyZoba/data/2dc2a00c8/412d69fccd1d4b4ab064d597215b6dec [2022-11-22 02:33:33,235 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 02:33:33,236 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 02:33:33,238 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 02:33:33,238 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 02:33:33,242 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 02:33:33,243 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:33:33" (1/1) ... [2022-11-22 02:33:33,244 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44d7b068 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:33:33, skipping insertion in model container [2022-11-22 02:33:33,245 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:33:33" (1/1) ... [2022-11-22 02:33:33,253 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 02:33:33,323 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 02:33:33,486 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d123b59b-d90e-4112-96b1-84789e2892a0/sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i[1097,1110] [2022-11-22 02:33:33,646 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:33:33,660 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 02:33:33,674 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d123b59b-d90e-4112-96b1-84789e2892a0/sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i[1097,1110] [2022-11-22 02:33:33,705 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:33:33,741 INFO L208 MainTranslator]: Completed translation [2022-11-22 02:33:33,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:33:33 WrapperNode [2022-11-22 02:33:33,742 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 02:33:33,743 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 02:33:33,743 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 02:33:33,744 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 02:33:33,752 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:33:33" (1/1) ... [2022-11-22 02:33:33,767 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:33:33" (1/1) ... [2022-11-22 02:33:33,789 INFO L138 Inliner]: procedures = 163, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 55 [2022-11-22 02:33:33,790 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 02:33:33,790 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 02:33:33,791 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 02:33:33,791 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 02:33:33,800 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:33:33" (1/1) ... [2022-11-22 02:33:33,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:33:33" (1/1) ... [2022-11-22 02:33:33,804 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:33:33" (1/1) ... [2022-11-22 02:33:33,804 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:33:33" (1/1) ... [2022-11-22 02:33:33,809 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:33:33" (1/1) ... [2022-11-22 02:33:33,811 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:33:33" (1/1) ... [2022-11-22 02:33:33,812 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:33:33" (1/1) ... [2022-11-22 02:33:33,813 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:33:33" (1/1) ... [2022-11-22 02:33:33,819 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 02:33:33,820 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 02:33:33,820 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 02:33:33,820 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 02:33:33,821 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:33:33" (1/1) ... [2022-11-22 02:33:33,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:33:33,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d123b59b-d90e-4112-96b1-84789e2892a0/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:33:33,853 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d123b59b-d90e-4112-96b1-84789e2892a0/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 02:33:33,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d123b59b-d90e-4112-96b1-84789e2892a0/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 02:33:33,914 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 02:33:33,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 02:33:33,914 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-22 02:33:33,914 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 02:33:33,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 02:33:33,915 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-22 02:33:33,915 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-22 02:33:33,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 02:33:33,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 02:33:33,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 02:33:33,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 02:33:33,918 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-22 02:33:34,071 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 02:33:34,073 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 02:33:34,329 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 02:33:34,337 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 02:33:34,338 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-22 02:33:34,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:33:34 BoogieIcfgContainer [2022-11-22 02:33:34,340 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 02:33:34,344 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 02:33:34,344 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 02:33:34,348 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 02:33:34,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:33:33" (1/3) ... [2022-11-22 02:33:34,350 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30ed858 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:33:34, skipping insertion in model container [2022-11-22 02:33:34,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:33:33" (2/3) ... [2022-11-22 02:33:34,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30ed858 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:33:34, skipping insertion in model container [2022-11-22 02:33:34,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:33:34" (3/3) ... [2022-11-22 02:33:34,353 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_2_neg.i [2022-11-22 02:33:34,406 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 02:33:34,407 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-22 02:33:34,407 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-22 02:33:34,536 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-22 02:33:34,581 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-22 02:33:34,601 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 72 transitions, 152 flow [2022-11-22 02:33:34,604 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 72 transitions, 152 flow [2022-11-22 02:33:34,607 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 74 places, 72 transitions, 152 flow [2022-11-22 02:33:34,662 INFO L130 PetriNetUnfolder]: 2/71 cut-off events. [2022-11-22 02:33:34,662 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-22 02:33:34,668 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 71 events. 2/71 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 36 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 32. Up to 2 conditions per place. [2022-11-22 02:33:34,669 INFO L119 LiptonReduction]: Number of co-enabled transitions 384 [2022-11-22 02:33:38,485 INFO L134 LiptonReduction]: Checked pairs total: 649 [2022-11-22 02:33:38,485 INFO L136 LiptonReduction]: Total number of compositions: 77 [2022-11-22 02:33:38,500 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 19 places, 15 transitions, 38 flow [2022-11-22 02:33:38,518 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 26 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 25 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:33:38,553 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:33:38,565 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2eb20af8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:33:38,566 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-22 02:33:38,568 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 25 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:33:38,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-22 02:33:38,574 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:33:38,575 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-22 02:33:38,576 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-22 02:33:38,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:33:38,589 INFO L85 PathProgramCache]: Analyzing trace with hash 287, now seen corresponding path program 1 times [2022-11-22 02:33:38,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:33:38,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694255732] [2022-11-22 02:33:38,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:33:38,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:33:38,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:33:38,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:33:38,752 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:33:38,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694255732] [2022-11-22 02:33:38,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694255732] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:33:38,754 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:33:38,754 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-22 02:33:38,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718887860] [2022-11-22 02:33:38,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:33:38,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-22 02:33:38,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:33:38,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-22 02:33:38,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-22 02:33:38,805 INFO L87 Difference]: Start difference. First operand has 26 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 25 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:33:38,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:33:38,851 INFO L93 Difference]: Finished difference Result 24 states and 35 transitions. [2022-11-22 02:33:38,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-22 02:33:38,855 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-11-22 02:33:38,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:33:38,879 INFO L225 Difference]: With dead ends: 24 [2022-11-22 02:33:38,879 INFO L226 Difference]: Without dead ends: 24 [2022-11-22 02:33:38,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-22 02:33:38,886 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:33:38,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:33:38,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-11-22 02:33:38,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2022-11-22 02:33:38,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 23 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:33:38,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 35 transitions. [2022-11-22 02:33:38,932 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 35 transitions. Word has length 1 [2022-11-22 02:33:38,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:33:38,933 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 35 transitions. [2022-11-22 02:33:38,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:33:38,936 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 35 transitions. [2022-11-22 02:33:38,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-22 02:33:38,937 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:33:38,937 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-22 02:33:38,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 02:33:38,940 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-22 02:33:38,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:33:38,943 INFO L85 PathProgramCache]: Analyzing trace with hash 279656, now seen corresponding path program 1 times [2022-11-22 02:33:38,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:33:38,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239157106] [2022-11-22 02:33:38,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:33:38,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:33:39,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 02:33:39,042 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-22 02:33:39,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 02:33:39,119 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-22 02:33:39,120 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-22 02:33:39,122 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (7 of 8 remaining) [2022-11-22 02:33:39,126 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 8 remaining) [2022-11-22 02:33:39,126 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 8 remaining) [2022-11-22 02:33:39,127 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 8 remaining) [2022-11-22 02:33:39,127 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 8 remaining) [2022-11-22 02:33:39,127 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (2 of 8 remaining) [2022-11-22 02:33:39,131 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2022-11-22 02:33:39,132 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 8 remaining) [2022-11-22 02:33:39,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 02:33:39,140 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-22 02:33:39,148 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-22 02:33:39,148 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 02:33:39,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 02:33:39 BasicIcfg [2022-11-22 02:33:39,176 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 02:33:39,177 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 02:33:39,177 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 02:33:39,177 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 02:33:39,178 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:33:34" (3/4) ... [2022-11-22 02:33:39,182 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-22 02:33:39,182 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 02:33:39,183 INFO L158 Benchmark]: Toolchain (without parser) took 5946.64ms. Allocated memory was 178.3MB in the beginning and 230.7MB in the end (delta: 52.4MB). Free memory was 142.0MB in the beginning and 121.6MB in the end (delta: 20.4MB). Peak memory consumption was 74.1MB. Max. memory is 16.1GB. [2022-11-22 02:33:39,184 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 178.3MB. Free memory is still 150.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:33:39,184 INFO L158 Benchmark]: CACSL2BoogieTranslator took 504.46ms. Allocated memory is still 178.3MB. Free memory was 141.5MB in the beginning and 122.8MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-22 02:33:39,185 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.64ms. Allocated memory is still 178.3MB. Free memory was 122.8MB in the beginning and 121.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 02:33:39,186 INFO L158 Benchmark]: Boogie Preprocessor took 28.57ms. Allocated memory is still 178.3MB. Free memory was 121.1MB in the beginning and 119.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 02:33:39,186 INFO L158 Benchmark]: RCFGBuilder took 520.93ms. Allocated memory is still 178.3MB. Free memory was 119.7MB in the beginning and 106.5MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-22 02:33:39,187 INFO L158 Benchmark]: TraceAbstraction took 4832.35ms. Allocated memory was 178.3MB in the beginning and 230.7MB in the end (delta: 52.4MB). Free memory was 106.0MB in the beginning and 122.7MB in the end (delta: -16.7MB). Peak memory consumption was 38.4MB. Max. memory is 16.1GB. [2022-11-22 02:33:39,187 INFO L158 Benchmark]: Witness Printer took 5.52ms. Allocated memory is still 230.7MB. Free memory was 122.7MB in the beginning and 121.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:33:39,190 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 178.3MB. Free memory is still 150.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 504.46ms. Allocated memory is still 178.3MB. Free memory was 141.5MB in the beginning and 122.8MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.64ms. Allocated memory is still 178.3MB. Free memory was 122.8MB in the beginning and 121.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.57ms. Allocated memory is still 178.3MB. Free memory was 121.1MB in the beginning and 119.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 520.93ms. Allocated memory is still 178.3MB. Free memory was 119.7MB in the beginning and 106.5MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 4832.35ms. Allocated memory was 178.3MB in the beginning and 230.7MB in the end (delta: 52.4MB). Free memory was 106.0MB in the beginning and 122.7MB in the end (delta: -16.7MB). Peak memory consumption was 38.4MB. Max. memory is 16.1GB. * Witness Printer took 5.52ms. Allocated memory is still 230.7MB. Free memory was 122.7MB in the beginning and 121.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.9s, 74 PlacesBefore, 19 PlacesAfterwards, 72 TransitionsBefore, 15 TransitionsAfterwards, 384 CoEnabledTransitionPairs, 6 FixpointIterations, 42 TrivialSequentialCompositions, 26 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 2 ChoiceCompositions, 77 TotalNumberOfCompositions, 649 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 488, independent: 435, independent conditional: 0, independent unconditional: 435, dependent: 53, dependent conditional: 0, dependent unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 294, independent: 274, independent conditional: 0, independent unconditional: 274, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 294, independent: 269, independent conditional: 0, independent unconditional: 269, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 25, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 109, independent: 15, independent conditional: 0, independent unconditional: 15, dependent: 94, dependent conditional: 0, dependent unconditional: 94, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 488, independent: 161, independent conditional: 0, independent unconditional: 161, dependent: 33, dependent conditional: 0, dependent unconditional: 33, unknown: 294, unknown conditional: 0, unknown unconditional: 294] , Statistics on independence cache: Total cache size (in pairs): 12, Positive cache size: 6, Positive conditional cache size: 0, Positive unconditional cache size: 6, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 19. Possible FailurePath: [L682] 0 int glob1 = 0; [L683] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L697] 0 pthread_t id; [L698] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [glob1=0, id={5:0}, mutex1={3:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L685] 1 int t = __VERIFIER_nondet_int(); [L687] COND TRUE 1 t == 42 [L688] 1 glob1 = 1 [L690] 1 t = glob1 [L691] CALL 1 __VERIFIER_assert(!(t == 1)) [L19] COND TRUE 1 !(cond) [L19] 1 reach_error() VAL [\old(cond)=0, cond=0, glob1=1, mutex1={3:0}] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 95 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 4.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11 IncrementalHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 11 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-22 02:33:39,232 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d123b59b-d90e-4112-96b1-84789e2892a0/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d123b59b-d90e-4112-96b1-84789e2892a0/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d123b59b-d90e-4112-96b1-84789e2892a0/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d123b59b-d90e-4112-96b1-84789e2892a0/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d123b59b-d90e-4112-96b1-84789e2892a0/bin/utaipan-g80aRyZoba/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d123b59b-d90e-4112-96b1-84789e2892a0/bin/utaipan-g80aRyZoba/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d123b59b-d90e-4112-96b1-84789e2892a0/bin/utaipan-g80aRyZoba --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 9466f27e00e9305501eee0377198b5d988616fcd0740d7b6b046dc1579fad0d0 --- 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-b5237d8 [2022-11-22 02:33:42,264 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 02:33:42,267 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 02:33:42,315 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 02:33:42,315 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 02:33:42,320 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 02:33:42,323 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 02:33:42,327 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 02:33:42,330 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 02:33:42,337 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 02:33:42,338 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 02:33:42,340 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 02:33:42,341 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 02:33:42,342 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 02:33:42,343 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 02:33:42,347 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 02:33:42,351 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 02:33:42,352 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 02:33:42,354 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 02:33:42,357 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 02:33:42,362 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 02:33:42,368 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 02:33:42,371 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 02:33:42,373 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 02:33:42,377 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 02:33:42,383 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 02:33:42,383 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 02:33:42,385 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 02:33:42,389 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 02:33:42,390 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 02:33:42,390 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 02:33:42,391 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 02:33:42,393 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 02:33:42,395 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 02:33:42,405 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 02:33:42,405 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 02:33:42,406 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 02:33:42,406 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 02:33:42,407 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 02:33:42,408 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 02:33:42,409 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 02:33:42,412 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d123b59b-d90e-4112-96b1-84789e2892a0/bin/utaipan-g80aRyZoba/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2022-11-22 02:33:42,466 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 02:33:42,466 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 02:33:42,467 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 02:33:42,467 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 02:33:42,468 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 02:33:42,468 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 02:33:42,469 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 02:33:42,469 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 02:33:42,469 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 02:33:42,470 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 02:33:42,471 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 02:33:42,471 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 02:33:42,472 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-22 02:33:42,472 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-22 02:33:42,473 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 02:33:42,473 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 02:33:42,473 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 02:33:42,473 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 02:33:42,474 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 02:33:42,474 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 02:33:42,474 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-22 02:33:42,474 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-22 02:33:42,475 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-22 02:33:42,475 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 02:33:42,475 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-22 02:33:42,475 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-22 02:33:42,476 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-22 02:33:42,476 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 02:33:42,476 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 02:33:42,476 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 02:33:42,477 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-22 02:33:42,477 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 02:33:42,477 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:33:42,478 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 02:33:42,478 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 02:33:42,478 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-22 02:33:42,478 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-22 02:33:42,479 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 02:33:42,479 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-22 02:33:42,479 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d123b59b-d90e-4112-96b1-84789e2892a0/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d123b59b-d90e-4112-96b1-84789e2892a0/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9466f27e00e9305501eee0377198b5d988616fcd0740d7b6b046dc1579fad0d0 [2022-11-22 02:33:42,892 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 02:33:42,923 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 02:33:42,928 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 02:33:42,930 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 02:33:42,930 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 02:33:42,932 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d123b59b-d90e-4112-96b1-84789e2892a0/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i [2022-11-22 02:33:46,687 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 02:33:46,977 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 02:33:46,978 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d123b59b-d90e-4112-96b1-84789e2892a0/sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i [2022-11-22 02:33:46,993 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d123b59b-d90e-4112-96b1-84789e2892a0/bin/utaipan-g80aRyZoba/data/9192fbb94/7ebb7cec3dc0441a8173bb8aaa6c46c9/FLAG77c3a7cee [2022-11-22 02:33:47,012 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d123b59b-d90e-4112-96b1-84789e2892a0/bin/utaipan-g80aRyZoba/data/9192fbb94/7ebb7cec3dc0441a8173bb8aaa6c46c9 [2022-11-22 02:33:47,016 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 02:33:47,018 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 02:33:47,021 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 02:33:47,021 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 02:33:47,026 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 02:33:47,027 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:33:47" (1/1) ... [2022-11-22 02:33:47,028 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f1929c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:33:47, skipping insertion in model container [2022-11-22 02:33:47,029 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:33:47" (1/1) ... [2022-11-22 02:33:47,038 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 02:33:47,128 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 02:33:47,317 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d123b59b-d90e-4112-96b1-84789e2892a0/sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i[1097,1110] [2022-11-22 02:33:47,522 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:33:47,547 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 02:33:47,574 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d123b59b-d90e-4112-96b1-84789e2892a0/sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i[1097,1110] [2022-11-22 02:33:47,630 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:33:47,701 INFO L208 MainTranslator]: Completed translation [2022-11-22 02:33:47,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:33:47 WrapperNode [2022-11-22 02:33:47,702 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 02:33:47,704 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 02:33:47,704 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 02:33:47,704 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 02:33:47,712 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:33:47" (1/1) ... [2022-11-22 02:33:47,730 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:33:47" (1/1) ... [2022-11-22 02:33:47,753 INFO L138 Inliner]: procedures = 167, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 55 [2022-11-22 02:33:47,754 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 02:33:47,755 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 02:33:47,756 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 02:33:47,756 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 02:33:47,765 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:33:47" (1/1) ... [2022-11-22 02:33:47,766 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:33:47" (1/1) ... [2022-11-22 02:33:47,770 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:33:47" (1/1) ... [2022-11-22 02:33:47,771 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:33:47" (1/1) ... [2022-11-22 02:33:47,779 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:33:47" (1/1) ... [2022-11-22 02:33:47,781 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:33:47" (1/1) ... [2022-11-22 02:33:47,783 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:33:47" (1/1) ... [2022-11-22 02:33:47,785 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:33:47" (1/1) ... [2022-11-22 02:33:47,788 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 02:33:47,790 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 02:33:47,790 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 02:33:47,790 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 02:33:47,791 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:33:47" (1/1) ... [2022-11-22 02:33:47,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:33:47,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d123b59b-d90e-4112-96b1-84789e2892a0/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:33:47,857 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d123b59b-d90e-4112-96b1-84789e2892a0/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 02:33:47,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d123b59b-d90e-4112-96b1-84789e2892a0/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 02:33:47,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-22 02:33:47,926 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-22 02:33:47,927 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 02:33:47,927 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 02:33:47,927 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-22 02:33:47,927 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-22 02:33:47,927 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 02:33:47,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-22 02:33:47,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-22 02:33:47,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-22 02:33:47,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 02:33:47,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 02:33:47,929 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-22 02:33:48,091 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 02:33:48,094 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 02:33:48,338 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 02:33:48,346 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 02:33:48,346 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-22 02:33:48,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:33:48 BoogieIcfgContainer [2022-11-22 02:33:48,349 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 02:33:48,351 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 02:33:48,351 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 02:33:48,355 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 02:33:48,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:33:47" (1/3) ... [2022-11-22 02:33:48,356 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31867779 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:33:48, skipping insertion in model container [2022-11-22 02:33:48,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:33:47" (2/3) ... [2022-11-22 02:33:48,357 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31867779 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:33:48, skipping insertion in model container [2022-11-22 02:33:48,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:33:48" (3/3) ... [2022-11-22 02:33:48,359 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_2_neg.i [2022-11-22 02:33:48,382 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 02:33:48,382 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-22 02:33:48,382 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-22 02:33:48,513 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-22 02:33:48,555 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-22 02:33:48,573 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 72 transitions, 152 flow [2022-11-22 02:33:48,577 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 72 transitions, 152 flow [2022-11-22 02:33:48,580 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 74 places, 72 transitions, 152 flow [2022-11-22 02:33:48,657 INFO L130 PetriNetUnfolder]: 2/71 cut-off events. [2022-11-22 02:33:48,657 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-22 02:33:48,663 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 71 events. 2/71 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 38 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 31. Up to 2 conditions per place. [2022-11-22 02:33:48,664 INFO L119 LiptonReduction]: Number of co-enabled transitions 368 [2022-11-22 02:33:56,945 INFO L134 LiptonReduction]: Checked pairs total: 663 [2022-11-22 02:33:56,945 INFO L136 LiptonReduction]: Total number of compositions: 71 [2022-11-22 02:33:56,954 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 19 places, 15 transitions, 38 flow [2022-11-22 02:33:56,967 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 26 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 25 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:33:56,986 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:33:56,994 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2fa9be41, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:33:56,995 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-22 02:33:56,997 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 25 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:33:57,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-22 02:33:57,003 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:33:57,004 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-22 02:33:57,004 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-22 02:33:57,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:33:57,010 INFO L85 PathProgramCache]: Analyzing trace with hash 278, now seen corresponding path program 1 times [2022-11-22 02:33:57,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 02:33:57,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1521257497] [2022-11-22 02:33:57,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:33:57,027 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 02:33:57,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d123b59b-d90e-4112-96b1-84789e2892a0/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 02:33:57,033 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d123b59b-d90e-4112-96b1-84789e2892a0/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 02:33:57,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d123b59b-d90e-4112-96b1-84789e2892a0/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-22 02:33:57,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:33:57,125 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-22 02:33:57,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:33:57,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:33:57,135 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:33:57,135 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 02:33:57,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1521257497] [2022-11-22 02:33:57,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1521257497] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:33:57,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:33:57,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-22 02:33:57,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753630227] [2022-11-22 02:33:57,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:33:57,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-22 02:33:57,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 02:33:57,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-22 02:33:57,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-22 02:33:57,179 INFO L87 Difference]: Start difference. First operand has 26 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 25 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:33:57,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:33:57,248 INFO L93 Difference]: Finished difference Result 24 states and 35 transitions. [2022-11-22 02:33:57,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-22 02:33:57,251 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-11-22 02:33:57,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:33:57,260 INFO L225 Difference]: With dead ends: 24 [2022-11-22 02:33:57,263 INFO L226 Difference]: Without dead ends: 24 [2022-11-22 02:33:57,264 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-22 02:33:57,275 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:33:57,276 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:33:57,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-11-22 02:33:57,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2022-11-22 02:33:57,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 23 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:33:57,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 35 transitions. [2022-11-22 02:33:57,362 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 35 transitions. Word has length 1 [2022-11-22 02:33:57,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:33:57,363 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 35 transitions. [2022-11-22 02:33:57,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:33:57,364 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 35 transitions. [2022-11-22 02:33:57,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-22 02:33:57,364 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:33:57,365 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-22 02:33:57,410 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d123b59b-d90e-4112-96b1-84789e2892a0/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-11-22 02:33:57,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d123b59b-d90e-4112-96b1-84789e2892a0/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 02:33:57,577 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-22 02:33:57,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:33:57,578 INFO L85 PathProgramCache]: Analyzing trace with hash 271933, now seen corresponding path program 1 times [2022-11-22 02:33:57,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 02:33:57,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [44289754] [2022-11-22 02:33:57,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:33:57,580 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 02:33:57,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d123b59b-d90e-4112-96b1-84789e2892a0/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 02:33:57,587 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d123b59b-d90e-4112-96b1-84789e2892a0/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 02:33:57,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d123b59b-d90e-4112-96b1-84789e2892a0/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-22 02:33:57,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 02:33:57,705 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-22 02:33:57,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 02:33:57,775 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-22 02:33:57,775 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-22 02:33:57,777 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (7 of 8 remaining) [2022-11-22 02:33:57,787 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 8 remaining) [2022-11-22 02:33:57,787 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 8 remaining) [2022-11-22 02:33:57,788 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 8 remaining) [2022-11-22 02:33:57,788 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 8 remaining) [2022-11-22 02:33:57,788 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (2 of 8 remaining) [2022-11-22 02:33:57,789 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2022-11-22 02:33:57,789 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 8 remaining) [2022-11-22 02:33:57,809 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d123b59b-d90e-4112-96b1-84789e2892a0/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-22 02:33:58,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d123b59b-d90e-4112-96b1-84789e2892a0/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 02:33:58,003 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-22 02:33:58,008 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-22 02:33:58,008 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 02:33:58,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 02:33:58 BasicIcfg [2022-11-22 02:33:58,033 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 02:33:58,035 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 02:33:58,035 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 02:33:58,035 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 02:33:58,036 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:33:48" (3/4) ... [2022-11-22 02:33:58,039 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-22 02:33:58,039 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 02:33:58,040 INFO L158 Benchmark]: Toolchain (without parser) took 11022.01ms. Allocated memory was 60.8MB in the beginning and 96.5MB in the end (delta: 35.7MB). Free memory was 28.6MB in the beginning and 62.4MB in the end (delta: -33.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:33:58,041 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 60.8MB. Free memory is still 39.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:33:58,041 INFO L158 Benchmark]: CACSL2BoogieTranslator took 681.66ms. Allocated memory was 60.8MB in the beginning and 79.7MB in the end (delta: 18.9MB). Free memory was 28.2MB in the beginning and 42.9MB in the end (delta: -14.6MB). Peak memory consumption was 3.4MB. Max. memory is 16.1GB. [2022-11-22 02:33:58,042 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.61ms. Allocated memory is still 79.7MB. Free memory was 42.9MB in the beginning and 40.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 02:33:58,043 INFO L158 Benchmark]: Boogie Preprocessor took 33.49ms. Allocated memory is still 79.7MB. Free memory was 40.8MB in the beginning and 39.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 02:33:58,043 INFO L158 Benchmark]: RCFGBuilder took 559.38ms. Allocated memory is still 79.7MB. Free memory was 39.2MB in the beginning and 47.0MB in the end (delta: -7.8MB). Peak memory consumption was 3.2MB. Max. memory is 16.1GB. [2022-11-22 02:33:58,044 INFO L158 Benchmark]: TraceAbstraction took 9682.24ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 46.3MB in the beginning and 62.4MB in the end (delta: -16.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:33:58,044 INFO L158 Benchmark]: Witness Printer took 4.54ms. Allocated memory is still 96.5MB. Free memory is still 62.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:33:58,048 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 60.8MB. Free memory is still 39.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 681.66ms. Allocated memory was 60.8MB in the beginning and 79.7MB in the end (delta: 18.9MB). Free memory was 28.2MB in the beginning and 42.9MB in the end (delta: -14.6MB). Peak memory consumption was 3.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.61ms. Allocated memory is still 79.7MB. Free memory was 42.9MB in the beginning and 40.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.49ms. Allocated memory is still 79.7MB. Free memory was 40.8MB in the beginning and 39.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 559.38ms. Allocated memory is still 79.7MB. Free memory was 39.2MB in the beginning and 47.0MB in the end (delta: -7.8MB). Peak memory consumption was 3.2MB. Max. memory is 16.1GB. * TraceAbstraction took 9682.24ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 46.3MB in the beginning and 62.4MB in the end (delta: -16.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.54ms. Allocated memory is still 96.5MB. Free memory is still 62.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.4s, 74 PlacesBefore, 19 PlacesAfterwards, 72 TransitionsBefore, 15 TransitionsAfterwards, 368 CoEnabledTransitionPairs, 6 FixpointIterations, 36 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 71 TotalNumberOfCompositions, 663 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 498, independent: 445, independent conditional: 0, independent unconditional: 445, dependent: 53, dependent conditional: 0, dependent unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 298, independent: 272, independent conditional: 0, independent unconditional: 272, dependent: 26, dependent conditional: 0, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 298, independent: 267, independent conditional: 0, independent unconditional: 267, dependent: 31, dependent conditional: 0, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 31, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 26, dependent conditional: 0, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 256, independent: 23, independent conditional: 0, independent unconditional: 23, dependent: 233, dependent conditional: 0, dependent unconditional: 233, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 498, independent: 173, independent conditional: 0, independent unconditional: 173, dependent: 27, dependent conditional: 0, dependent unconditional: 27, unknown: 298, unknown conditional: 0, unknown unconditional: 298] , Statistics on independence cache: Total cache size (in pairs): 13, Positive cache size: 7, Positive conditional cache size: 0, Positive unconditional cache size: 7, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 19. Possible FailurePath: [L682] 0 int glob1 = 0; [L683] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L697] 0 pthread_t id; [L698] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [glob1=0, id={7:0}, mutex1={3:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L685] 1 int t = __VERIFIER_nondet_int(); [L687] COND TRUE 1 t == 42 [L688] 1 glob1 = 1 [L690] 1 t = glob1 [L691] CALL 1 __VERIFIER_assert(!(t == 1)) [L19] COND TRUE 1 !(cond) [L19] 1 reach_error() VAL [\old(cond)=0, cond=0, glob1=1, mutex1={3:0}] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 94 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 9.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 8.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11 IncrementalHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 11 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 3 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-22 02:33:58,079 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d123b59b-d90e-4112-96b1-84789e2892a0/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample