./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec48237-a078-46c3-8b43-2ef43ed1de46/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec48237-a078-46c3-8b43-2ef43ed1de46/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec48237-a078-46c3-8b43-2ef43ed1de46/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec48237-a078-46c3-8b43-2ef43ed1de46/bin/uautomizer-vX5HgA9Q3a/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec48237-a078-46c3-8b43-2ef43ed1de46/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec48237-a078-46c3-8b43-2ef43ed1de46/bin/uautomizer-vX5HgA9Q3a --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 89785c0d24fcdefc69967ffaff157c690c4dc9452939a731c93e500faa24c4d7 --- 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 [2022-11-21 17:24:22,610 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 17:24:22,613 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 17:24:22,654 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 17:24:22,655 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 17:24:22,658 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 17:24:22,661 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 17:24:22,663 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 17:24:22,665 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 17:24:22,671 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 17:24:22,673 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 17:24:22,675 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 17:24:22,675 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 17:24:22,678 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 17:24:22,679 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 17:24:22,681 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 17:24:22,683 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 17:24:22,684 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 17:24:22,686 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 17:24:22,692 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 17:24:22,694 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 17:24:22,696 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 17:24:22,697 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 17:24:22,698 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 17:24:22,708 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 17:24:22,708 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 17:24:22,708 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 17:24:22,710 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 17:24:22,711 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 17:24:22,712 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 17:24:22,712 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 17:24:22,713 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 17:24:22,715 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 17:24:22,717 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 17:24:22,719 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 17:24:22,720 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 17:24:22,720 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 17:24:22,721 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 17:24:22,721 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 17:24:22,723 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 17:24:22,723 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 17:24:22,724 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec48237-a078-46c3-8b43-2ef43ed1de46/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-21 17:24:22,762 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 17:24:22,762 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 17:24:22,763 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 17:24:22,764 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 17:24:22,765 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 17:24:22,765 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 17:24:22,766 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 17:24:22,766 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 17:24:22,766 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 17:24:22,767 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 17:24:22,768 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 17:24:22,768 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 17:24:22,768 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 17:24:22,769 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 17:24:22,769 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 17:24:22,769 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-21 17:24:22,769 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-21 17:24:22,770 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-21 17:24:22,770 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 17:24:22,770 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-21 17:24:22,771 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 17:24:22,771 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 17:24:22,771 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 17:24:22,771 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 17:24:22,772 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 17:24:22,772 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:24:22,772 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 17:24:22,773 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 17:24:22,773 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 17:24:22,774 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 17:24:22,774 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_cec48237-a078-46c3-8b43-2ef43ed1de46/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec48237-a078-46c3-8b43-2ef43ed1de46/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 89785c0d24fcdefc69967ffaff157c690c4dc9452939a731c93e500faa24c4d7 [2022-11-21 17:24:23,055 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 17:24:23,090 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 17:24:23,095 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 17:24:23,097 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 17:24:23,097 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 17:24:23,098 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec48237-a078-46c3-8b43-2ef43ed1de46/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i [2022-11-21 17:24:26,165 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 17:24:26,442 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 17:24:26,443 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec48237-a078-46c3-8b43-2ef43ed1de46/sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i [2022-11-21 17:24:26,471 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec48237-a078-46c3-8b43-2ef43ed1de46/bin/uautomizer-vX5HgA9Q3a/data/d0153e346/98359fb259ab419abc37ac54e1d079f3/FLAG68b5be71f [2022-11-21 17:24:26,494 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec48237-a078-46c3-8b43-2ef43ed1de46/bin/uautomizer-vX5HgA9Q3a/data/d0153e346/98359fb259ab419abc37ac54e1d079f3 [2022-11-21 17:24:26,496 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 17:24:26,498 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 17:24:26,500 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 17:24:26,500 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 17:24:26,506 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 17:24:26,506 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:24:26" (1/1) ... [2022-11-21 17:24:26,508 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b370b7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:24:26, skipping insertion in model container [2022-11-21 17:24:26,508 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:24:26" (1/1) ... [2022-11-21 17:24:26,515 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 17:24:26,548 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 17:24:26,700 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_cec48237-a078-46c3-8b43-2ef43ed1de46/sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i[1102,1115] [2022-11-21 17:24:26,918 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:24:26,936 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 17:24:26,953 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_cec48237-a078-46c3-8b43-2ef43ed1de46/sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i[1102,1115] [2022-11-21 17:24:27,000 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:24:27,047 INFO L208 MainTranslator]: Completed translation [2022-11-21 17:24:27,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:24:27 WrapperNode [2022-11-21 17:24:27,048 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 17:24:27,051 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 17:24:27,052 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 17:24:27,052 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 17:24:27,060 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:24:27" (1/1) ... [2022-11-21 17:24:27,073 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:24:27" (1/1) ... [2022-11-21 17:24:27,092 INFO L138 Inliner]: procedures = 162, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2022-11-21 17:24:27,092 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 17:24:27,093 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 17:24:27,093 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 17:24:27,093 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 17:24:27,103 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:24:27" (1/1) ... [2022-11-21 17:24:27,103 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:24:27" (1/1) ... [2022-11-21 17:24:27,107 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:24:27" (1/1) ... [2022-11-21 17:24:27,108 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:24:27" (1/1) ... [2022-11-21 17:24:27,117 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:24:27" (1/1) ... [2022-11-21 17:24:27,122 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:24:27" (1/1) ... [2022-11-21 17:24:27,129 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:24:27" (1/1) ... [2022-11-21 17:24:27,131 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:24:27" (1/1) ... [2022-11-21 17:24:27,136 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 17:24:27,137 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 17:24:27,143 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 17:24:27,143 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 17:24:27,144 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:24:27" (1/1) ... [2022-11-21 17:24:27,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:24:27,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec48237-a078-46c3-8b43-2ef43ed1de46/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:24:27,181 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec48237-a078-46c3-8b43-2ef43ed1de46/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 17:24:27,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec48237-a078-46c3-8b43-2ef43ed1de46/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 17:24:27,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 17:24:27,237 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 17:24:27,237 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 17:24:27,237 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-21 17:24:27,237 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-21 17:24:27,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 17:24:27,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 17:24:27,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 17:24:27,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 17:24:27,240 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-21 17:24:27,448 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 17:24:27,450 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 17:24:27,621 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 17:24:27,627 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 17:24:27,635 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 17:24:27,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:24:27 BoogieIcfgContainer [2022-11-21 17:24:27,638 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 17:24:27,640 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 17:24:27,641 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 17:24:27,645 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 17:24:27,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 05:24:26" (1/3) ... [2022-11-21 17:24:27,646 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3eac51c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:24:27, skipping insertion in model container [2022-11-21 17:24:27,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:24:27" (2/3) ... [2022-11-21 17:24:27,648 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3eac51c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:24:27, skipping insertion in model container [2022-11-21 17:24:27,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:24:27" (3/3) ... [2022-11-21 17:24:27,650 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_41-threadenter-no-locals_unknown_1_pos.i [2022-11-21 17:24:27,670 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 17:24:27,671 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-21 17:24:27,671 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 17:24:27,735 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-21 17:24:27,765 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-21 17:24:27,779 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 52 places, 49 transitions, 103 flow [2022-11-21 17:24:27,782 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 52 places, 49 transitions, 103 flow [2022-11-21 17:24:27,784 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 52 places, 49 transitions, 103 flow [2022-11-21 17:24:27,816 INFO L130 PetriNetUnfolder]: 1/48 cut-off events. [2022-11-21 17:24:27,816 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 17:24:27,823 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52 conditions, 48 events. 1/48 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 38 event pairs, 0 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 27. Up to 2 conditions per place. [2022-11-21 17:24:27,824 INFO L119 LiptonReduction]: Number of co-enabled transitions 352 [2022-11-21 17:24:29,988 INFO L134 LiptonReduction]: Checked pairs total: 269 [2022-11-21 17:24:29,988 INFO L136 LiptonReduction]: Total number of compositions: 57 [2022-11-21 17:24:29,997 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 13 places, 9 transitions, 23 flow [2022-11-21 17:24:30,007 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 12 states, 7 states have (on average 2.0) internal successors, (14), 11 states have internal predecessors, (14), 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) [2022-11-21 17:24:30,026 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 17:24:30,033 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;@be57901, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 17:24:30,033 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-21 17:24:30,035 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 7 states have (on average 2.0) internal successors, (14), 11 states have internal predecessors, (14), 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) [2022-11-21 17:24:30,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-21 17:24:30,040 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:24:30,041 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-21 17:24:30,041 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2022-11-21 17:24:30,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:24:30,047 INFO L85 PathProgramCache]: Analyzing trace with hash 202, now seen corresponding path program 1 times [2022-11-21 17:24:30,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:24:30,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442529416] [2022-11-21 17:24:30,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:24:30,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:24:30,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:30,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:24:30,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:24:30,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442529416] [2022-11-21 17:24:30,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442529416] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:24:30,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:24:30,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-21 17:24:30,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744510959] [2022-11-21 17:24:30,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:24:30,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-21 17:24:30,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:24:30,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-21 17:24:30,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-21 17:24:30,197 INFO L87 Difference]: Start difference. First operand has 12 states, 7 states have (on average 2.0) internal successors, (14), 11 states have internal predecessors, (14), 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) [2022-11-21 17:24:30,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:24:30,219 INFO L93 Difference]: Finished difference Result 10 states and 12 transitions. [2022-11-21 17:24:30,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-21 17:24:30,221 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 [2022-11-21 17:24:30,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:24:30,229 INFO L225 Difference]: With dead ends: 10 [2022-11-21 17:24:30,229 INFO L226 Difference]: Without dead ends: 10 [2022-11-21 17:24:30,230 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 [2022-11-21 17:24:30,234 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 17:24:30,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 17:24:30,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2022-11-21 17:24:30,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2022-11-21 17:24:30,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:24:30,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2022-11-21 17:24:30,264 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 12 transitions. Word has length 1 [2022-11-21 17:24:30,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:24:30,265 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 12 transitions. [2022-11-21 17:24:30,265 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) [2022-11-21 17:24:30,265 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2022-11-21 17:24:30,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-21 17:24:30,265 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:24:30,266 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-21 17:24:30,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 17:24:30,266 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2022-11-21 17:24:30,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:24:30,267 INFO L85 PathProgramCache]: Analyzing trace with hash 197054, now seen corresponding path program 1 times [2022-11-21 17:24:30,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:24:30,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846810224] [2022-11-21 17:24:30,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:24:30,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:24:30,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:24:30,303 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 17:24:30,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:24:30,338 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 17:24:30,338 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-21 17:24:30,340 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (5 of 6 remaining) [2022-11-21 17:24:30,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 6 remaining) [2022-11-21 17:24:30,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 6 remaining) [2022-11-21 17:24:30,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (2 of 6 remaining) [2022-11-21 17:24:30,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2022-11-21 17:24:30,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 6 remaining) [2022-11-21 17:24:30,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 17:24:30,346 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-21 17:24:30,351 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-21 17:24:30,351 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 17:24:30,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 05:24:30 BasicIcfg [2022-11-21 17:24:30,367 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 17:24:30,368 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 17:24:30,368 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 17:24:30,368 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 17:24:30,369 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:24:27" (3/4) ... [2022-11-21 17:24:30,372 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-21 17:24:30,372 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 17:24:30,373 INFO L158 Benchmark]: Toolchain (without parser) took 3874.75ms. Allocated memory is still 172.0MB. Free memory was 128.7MB in the beginning and 114.3MB in the end (delta: 14.4MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. [2022-11-21 17:24:30,373 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 138.4MB. Free memory is still 80.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 17:24:30,373 INFO L158 Benchmark]: CACSL2BoogieTranslator took 548.19ms. Allocated memory is still 172.0MB. Free memory was 128.1MB in the beginning and 110.0MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-21 17:24:30,374 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.38ms. Allocated memory is still 172.0MB. Free memory was 110.0MB in the beginning and 107.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 17:24:30,374 INFO L158 Benchmark]: Boogie Preprocessor took 43.58ms. Allocated memory is still 172.0MB. Free memory was 107.8MB in the beginning and 106.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 17:24:30,375 INFO L158 Benchmark]: RCFGBuilder took 500.85ms. Allocated memory is still 172.0MB. Free memory was 106.4MB in the beginning and 95.3MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-21 17:24:30,375 INFO L158 Benchmark]: TraceAbstraction took 2726.93ms. Allocated memory is still 172.0MB. Free memory was 94.5MB in the beginning and 114.3MB in the end (delta: -19.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 17:24:30,375 INFO L158 Benchmark]: Witness Printer took 4.10ms. Allocated memory is still 172.0MB. Free memory is still 114.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 17:24:30,378 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 138.4MB. Free memory is still 80.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 548.19ms. Allocated memory is still 172.0MB. Free memory was 128.1MB in the beginning and 110.0MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.38ms. Allocated memory is still 172.0MB. Free memory was 110.0MB in the beginning and 107.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.58ms. Allocated memory is still 172.0MB. Free memory was 107.8MB in the beginning and 106.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 500.85ms. Allocated memory is still 172.0MB. Free memory was 106.4MB in the beginning and 95.3MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2726.93ms. Allocated memory is still 172.0MB. Free memory was 94.5MB in the beginning and 114.3MB in the end (delta: -19.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.10ms. Allocated memory is still 172.0MB. Free memory is still 114.3MB. 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: 2.2s, 52 PlacesBefore, 13 PlacesAfterwards, 49 TransitionsBefore, 9 TransitionsAfterwards, 352 CoEnabledTransitionPairs, 5 FixpointIterations, 25 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 1 ChoiceCompositions, 57 TotalNumberOfCompositions, 269 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 269, independent: 269, independent conditional: 0, independent unconditional: 269, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 217, independent: 217, independent conditional: 0, independent unconditional: 217, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 217, independent: 217, independent conditional: 0, independent unconditional: 217, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 269, independent: 52, independent conditional: 0, independent unconditional: 52, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 217, unknown conditional: 0, unknown unconditional: 217] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, 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: [L688] 0 int x = 3; [L689] 0 pthread_t id; [L690] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [id={3:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1, x=3] [L683] 1 int x = __VERIFIER_nondet_int(); [L684] CALL 1 __VERIFIER_assert(x == 3) [L19] COND TRUE 1 !(cond) [L19] 1 reach_error() VAL [\old(cond)=0, cond=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: 687]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 690]: 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, 66 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 2.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.3s, 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, 6 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 6 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=12occurred 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, 0.0s 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 [2022-11-21 17:24:30,400 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec48237-a078-46c3-8b43-2ef43ed1de46/bin/uautomizer-vX5HgA9Q3a/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec48237-a078-46c3-8b43-2ef43ed1de46/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec48237-a078-46c3-8b43-2ef43ed1de46/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec48237-a078-46c3-8b43-2ef43ed1de46/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec48237-a078-46c3-8b43-2ef43ed1de46/bin/uautomizer-vX5HgA9Q3a/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec48237-a078-46c3-8b43-2ef43ed1de46/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec48237-a078-46c3-8b43-2ef43ed1de46/bin/uautomizer-vX5HgA9Q3a --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 89785c0d24fcdefc69967ffaff157c690c4dc9452939a731c93e500faa24c4d7 --- 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 [2022-11-21 17:24:32,919 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 17:24:32,921 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 17:24:32,951 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 17:24:32,952 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 17:24:32,953 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 17:24:32,954 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 17:24:32,956 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 17:24:32,958 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 17:24:32,959 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 17:24:32,960 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 17:24:32,961 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 17:24:32,961 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 17:24:32,962 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 17:24:32,963 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 17:24:32,965 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 17:24:32,965 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 17:24:32,966 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 17:24:32,968 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 17:24:32,970 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 17:24:32,971 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 17:24:32,980 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 17:24:32,981 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 17:24:32,982 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 17:24:32,988 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 17:24:32,994 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 17:24:32,995 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 17:24:32,996 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 17:24:32,996 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 17:24:32,997 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 17:24:32,998 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 17:24:32,998 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 17:24:32,999 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 17:24:33,001 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 17:24:33,002 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 17:24:33,005 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 17:24:33,006 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 17:24:33,006 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 17:24:33,007 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 17:24:33,009 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 17:24:33,010 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 17:24:33,011 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec48237-a078-46c3-8b43-2ef43ed1de46/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-11-21 17:24:33,057 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 17:24:33,059 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 17:24:33,060 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 17:24:33,060 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 17:24:33,061 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 17:24:33,062 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 17:24:33,062 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 17:24:33,063 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 17:24:33,063 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 17:24:33,063 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 17:24:33,064 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 17:24:33,065 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 17:24:33,065 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 17:24:33,065 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 17:24:33,065 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 17:24:33,065 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-21 17:24:33,066 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-21 17:24:33,066 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-21 17:24:33,066 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 17:24:33,066 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-21 17:24:33,067 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-21 17:24:33,067 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-21 17:24:33,067 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 17:24:33,067 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 17:24:33,067 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 17:24:33,068 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 17:24:33,068 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 17:24:33,068 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:24:33,068 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 17:24:33,069 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 17:24:33,069 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-21 17:24:33,069 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-21 17:24:33,069 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-21 17:24:33,070 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_cec48237-a078-46c3-8b43-2ef43ed1de46/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec48237-a078-46c3-8b43-2ef43ed1de46/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 89785c0d24fcdefc69967ffaff157c690c4dc9452939a731c93e500faa24c4d7 [2022-11-21 17:24:33,425 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 17:24:33,446 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 17:24:33,449 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 17:24:33,450 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 17:24:33,450 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 17:24:33,451 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec48237-a078-46c3-8b43-2ef43ed1de46/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i [2022-11-21 17:24:36,414 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 17:24:36,769 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 17:24:36,769 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec48237-a078-46c3-8b43-2ef43ed1de46/sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i [2022-11-21 17:24:36,793 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec48237-a078-46c3-8b43-2ef43ed1de46/bin/uautomizer-vX5HgA9Q3a/data/18002ff76/01b02b804c194044b5efb175152ae90f/FLAG45e677983 [2022-11-21 17:24:36,821 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec48237-a078-46c3-8b43-2ef43ed1de46/bin/uautomizer-vX5HgA9Q3a/data/18002ff76/01b02b804c194044b5efb175152ae90f [2022-11-21 17:24:36,824 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 17:24:36,825 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 17:24:36,827 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 17:24:36,827 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 17:24:36,831 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 17:24:36,832 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:24:36" (1/1) ... [2022-11-21 17:24:36,833 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76a2badf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:24:36, skipping insertion in model container [2022-11-21 17:24:36,833 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:24:36" (1/1) ... [2022-11-21 17:24:36,840 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 17:24:36,876 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 17:24:37,056 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_cec48237-a078-46c3-8b43-2ef43ed1de46/sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i[1102,1115] [2022-11-21 17:24:37,278 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:24:37,291 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 17:24:37,304 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_cec48237-a078-46c3-8b43-2ef43ed1de46/sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i[1102,1115] [2022-11-21 17:24:37,326 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:24:37,388 INFO L208 MainTranslator]: Completed translation [2022-11-21 17:24:37,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:24:37 WrapperNode [2022-11-21 17:24:37,388 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 17:24:37,390 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 17:24:37,390 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 17:24:37,390 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 17:24:37,398 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:24:37" (1/1) ... [2022-11-21 17:24:37,455 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:24:37" (1/1) ... [2022-11-21 17:24:37,485 INFO L138 Inliner]: procedures = 165, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2022-11-21 17:24:37,485 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 17:24:37,487 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 17:24:37,487 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 17:24:37,487 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 17:24:37,496 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:24:37" (1/1) ... [2022-11-21 17:24:37,497 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:24:37" (1/1) ... [2022-11-21 17:24:37,510 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:24:37" (1/1) ... [2022-11-21 17:24:37,511 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:24:37" (1/1) ... [2022-11-21 17:24:37,522 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:24:37" (1/1) ... [2022-11-21 17:24:37,524 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:24:37" (1/1) ... [2022-11-21 17:24:37,526 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:24:37" (1/1) ... [2022-11-21 17:24:37,527 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:24:37" (1/1) ... [2022-11-21 17:24:37,530 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 17:24:37,531 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 17:24:37,531 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 17:24:37,538 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 17:24:37,539 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:24:37" (1/1) ... [2022-11-21 17:24:37,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:24:37,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec48237-a078-46c3-8b43-2ef43ed1de46/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:24:37,577 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec48237-a078-46c3-8b43-2ef43ed1de46/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 17:24:37,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec48237-a078-46c3-8b43-2ef43ed1de46/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 17:24:37,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 17:24:37,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 17:24:37,621 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-21 17:24:37,621 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-21 17:24:37,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 17:24:37,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-21 17:24:37,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-21 17:24:37,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 17:24:37,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 17:24:37,623 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-21 17:24:37,787 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 17:24:37,789 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 17:24:37,912 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 17:24:37,918 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 17:24:37,919 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 17:24:37,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:24:37 BoogieIcfgContainer [2022-11-21 17:24:37,921 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 17:24:37,924 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 17:24:37,924 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 17:24:37,928 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 17:24:37,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 05:24:36" (1/3) ... [2022-11-21 17:24:37,929 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65c77454 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:24:37, skipping insertion in model container [2022-11-21 17:24:37,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:24:37" (2/3) ... [2022-11-21 17:24:37,929 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65c77454 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:24:37, skipping insertion in model container [2022-11-21 17:24:37,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:24:37" (3/3) ... [2022-11-21 17:24:37,931 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_41-threadenter-no-locals_unknown_1_pos.i [2022-11-21 17:24:37,968 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 17:24:37,968 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-21 17:24:37,969 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 17:24:38,019 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-21 17:24:38,052 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-21 17:24:38,067 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 52 places, 49 transitions, 103 flow [2022-11-21 17:24:38,069 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 52 places, 49 transitions, 103 flow [2022-11-21 17:24:38,071 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 52 places, 49 transitions, 103 flow [2022-11-21 17:24:38,103 INFO L130 PetriNetUnfolder]: 1/48 cut-off events. [2022-11-21 17:24:38,104 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 17:24:38,108 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52 conditions, 48 events. 1/48 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 40 event pairs, 0 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 26. Up to 2 conditions per place. [2022-11-21 17:24:38,110 INFO L119 LiptonReduction]: Number of co-enabled transitions 330 [2022-11-21 17:24:41,912 INFO L134 LiptonReduction]: Checked pairs total: 250 [2022-11-21 17:24:41,912 INFO L136 LiptonReduction]: Total number of compositions: 53 [2022-11-21 17:24:41,921 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 13 places, 9 transitions, 23 flow [2022-11-21 17:24:41,932 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 12 states, 7 states have (on average 2.0) internal successors, (14), 11 states have internal predecessors, (14), 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) [2022-11-21 17:24:41,951 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 17:24:41,958 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;@3ae0ad8d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 17:24:41,958 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-21 17:24:41,960 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 7 states have (on average 2.0) internal successors, (14), 11 states have internal predecessors, (14), 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) [2022-11-21 17:24:41,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-21 17:24:41,966 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:24:41,966 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-21 17:24:41,967 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2022-11-21 17:24:41,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:24:41,973 INFO L85 PathProgramCache]: Analyzing trace with hash 202, now seen corresponding path program 1 times [2022-11-21 17:24:41,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 17:24:41,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [52362512] [2022-11-21 17:24:41,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:24:41,986 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 [2022-11-21 17:24:41,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec48237-a078-46c3-8b43-2ef43ed1de46/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 17:24:41,995 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec48237-a078-46c3-8b43-2ef43ed1de46/bin/uautomizer-vX5HgA9Q3a/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) [2022-11-21 17:24:42,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec48237-a078-46c3-8b43-2ef43ed1de46/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 17:24:42,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:42,103 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-21 17:24:42,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:24:42,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:24:42,111 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 17:24:42,112 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 17:24:42,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [52362512] [2022-11-21 17:24:42,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [52362512] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:24:42,114 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:24:42,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-21 17:24:42,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114345020] [2022-11-21 17:24:42,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:24:42,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-21 17:24:42,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 17:24:42,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-21 17:24:42,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-21 17:24:42,153 INFO L87 Difference]: Start difference. First operand has 12 states, 7 states have (on average 2.0) internal successors, (14), 11 states have internal predecessors, (14), 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) [2022-11-21 17:24:42,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:24:42,199 INFO L93 Difference]: Finished difference Result 10 states and 12 transitions. [2022-11-21 17:24:42,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-21 17:24:42,202 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 [2022-11-21 17:24:42,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:24:42,225 INFO L225 Difference]: With dead ends: 10 [2022-11-21 17:24:42,225 INFO L226 Difference]: Without dead ends: 10 [2022-11-21 17:24:42,226 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 [2022-11-21 17:24:42,230 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 17:24:42,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 17:24:42,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2022-11-21 17:24:42,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2022-11-21 17:24:42,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:24:42,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2022-11-21 17:24:42,277 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 12 transitions. Word has length 1 [2022-11-21 17:24:42,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:24:42,278 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 12 transitions. [2022-11-21 17:24:42,278 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) [2022-11-21 17:24:42,278 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2022-11-21 17:24:42,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-21 17:24:42,278 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:24:42,279 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-21 17:24:42,314 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec48237-a078-46c3-8b43-2ef43ed1de46/bin/uautomizer-vX5HgA9Q3a/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)] Forceful destruction successful, exit code 0 [2022-11-21 17:24:42,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec48237-a078-46c3-8b43-2ef43ed1de46/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 17:24:42,504 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2022-11-21 17:24:42,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:24:42,504 INFO L85 PathProgramCache]: Analyzing trace with hash 197010, now seen corresponding path program 1 times [2022-11-21 17:24:42,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 17:24:42,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2066007549] [2022-11-21 17:24:42,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:24:42,505 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 [2022-11-21 17:24:42,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec48237-a078-46c3-8b43-2ef43ed1de46/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 17:24:42,508 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec48237-a078-46c3-8b43-2ef43ed1de46/bin/uautomizer-vX5HgA9Q3a/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) [2022-11-21 17:24:42,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec48237-a078-46c3-8b43-2ef43ed1de46/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 17:24:42,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:42,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-21 17:24:42,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:24:42,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:24:42,668 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 17:24:42,669 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 17:24:42,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2066007549] [2022-11-21 17:24:42,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2066007549] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:24:42,673 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:24:42,673 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-21 17:24:42,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254050919] [2022-11-21 17:24:42,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:24:42,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 17:24:42,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 17:24:42,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 17:24:42,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:24:42,683 INFO L87 Difference]: Start difference. First operand 10 states and 12 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:24:42,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:24:42,710 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions. [2022-11-21 17:24:42,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 17:24:42,711 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-11-21 17:24:42,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:24:42,711 INFO L225 Difference]: With dead ends: 7 [2022-11-21 17:24:42,711 INFO L226 Difference]: Without dead ends: 6 [2022-11-21 17:24:42,712 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:24:42,714 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 2 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 17:24:42,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 0 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 17:24:42,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2022-11-21 17:24:42,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2022-11-21 17:24:42,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 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) [2022-11-21 17:24:42,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2022-11-21 17:24:42,724 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 3 [2022-11-21 17:24:42,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:24:42,725 INFO L495 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2022-11-21 17:24:42,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:24:42,725 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2022-11-21 17:24:42,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-21 17:24:42,726 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:24:42,726 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-21 17:24:42,741 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec48237-a078-46c3-8b43-2ef43ed1de46/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 17:24:42,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec48237-a078-46c3-8b43-2ef43ed1de46/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 17:24:42,938 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2022-11-21 17:24:42,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:24:42,939 INFO L85 PathProgramCache]: Analyzing trace with hash 197017, now seen corresponding path program 1 times [2022-11-21 17:24:42,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 17:24:42,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1918216275] [2022-11-21 17:24:42,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:24:42,940 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 [2022-11-21 17:24:42,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec48237-a078-46c3-8b43-2ef43ed1de46/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 17:24:42,942 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec48237-a078-46c3-8b43-2ef43ed1de46/bin/uautomizer-vX5HgA9Q3a/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) [2022-11-21 17:24:42,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec48237-a078-46c3-8b43-2ef43ed1de46/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-21 17:24:43,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:24:43,031 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 17:24:43,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:24:43,077 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-21 17:24:43,077 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-21 17:24:43,078 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (5 of 6 remaining) [2022-11-21 17:24:43,080 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 6 remaining) [2022-11-21 17:24:43,081 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 6 remaining) [2022-11-21 17:24:43,085 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (2 of 6 remaining) [2022-11-21 17:24:43,086 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2022-11-21 17:24:43,086 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 6 remaining) [2022-11-21 17:24:43,112 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec48237-a078-46c3-8b43-2ef43ed1de46/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-21 17:24:43,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec48237-a078-46c3-8b43-2ef43ed1de46/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 17:24:43,288 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-21 17:24:43,293 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-21 17:24:43,293 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 17:24:43,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 05:24:43 BasicIcfg [2022-11-21 17:24:43,309 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 17:24:43,310 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 17:24:43,310 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 17:24:43,310 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 17:24:43,310 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:24:37" (3/4) ... [2022-11-21 17:24:43,314 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-21 17:24:43,316 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 17:24:43,318 INFO L158 Benchmark]: Toolchain (without parser) took 6492.34ms. Allocated memory was 75.5MB in the beginning and 96.5MB in the end (delta: 21.0MB). Free memory was 51.5MB in the beginning and 60.4MB in the end (delta: -8.8MB). Peak memory consumption was 15.2MB. Max. memory is 16.1GB. [2022-11-21 17:24:43,324 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 75.5MB. Free memory is still 54.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 17:24:43,325 INFO L158 Benchmark]: CACSL2BoogieTranslator took 562.17ms. Allocated memory was 75.5MB in the beginning and 96.5MB in the end (delta: 21.0MB). Free memory was 51.3MB in the beginning and 75.1MB in the end (delta: -23.8MB). Peak memory consumption was 26.0MB. Max. memory is 16.1GB. [2022-11-21 17:24:43,325 INFO L158 Benchmark]: Boogie Procedure Inliner took 95.92ms. Allocated memory is still 96.5MB. Free memory was 75.1MB in the beginning and 73.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 17:24:43,326 INFO L158 Benchmark]: Boogie Preprocessor took 43.41ms. Allocated memory is still 96.5MB. Free memory was 73.1MB in the beginning and 71.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 17:24:43,326 INFO L158 Benchmark]: RCFGBuilder took 390.67ms. Allocated memory is still 96.5MB. Free memory was 71.5MB in the beginning and 59.7MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-21 17:24:43,326 INFO L158 Benchmark]: TraceAbstraction took 5385.02ms. Allocated memory is still 96.5MB. Free memory was 58.9MB in the beginning and 60.4MB in the end (delta: -1.5MB). Peak memory consumption was 1.8MB. Max. memory is 16.1GB. [2022-11-21 17:24:43,327 INFO L158 Benchmark]: Witness Printer took 7.41ms. Allocated memory is still 96.5MB. Free memory is still 60.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 17:24:43,329 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 75.5MB. Free memory is still 54.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 562.17ms. Allocated memory was 75.5MB in the beginning and 96.5MB in the end (delta: 21.0MB). Free memory was 51.3MB in the beginning and 75.1MB in the end (delta: -23.8MB). Peak memory consumption was 26.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 95.92ms. Allocated memory is still 96.5MB. Free memory was 75.1MB in the beginning and 73.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.41ms. Allocated memory is still 96.5MB. Free memory was 73.1MB in the beginning and 71.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 390.67ms. Allocated memory is still 96.5MB. Free memory was 71.5MB in the beginning and 59.7MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 5385.02ms. Allocated memory is still 96.5MB. Free memory was 58.9MB in the beginning and 60.4MB in the end (delta: -1.5MB). Peak memory consumption was 1.8MB. Max. memory is 16.1GB. * Witness Printer took 7.41ms. Allocated memory is still 96.5MB. Free memory is still 60.4MB. 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: 3.8s, 52 PlacesBefore, 13 PlacesAfterwards, 49 TransitionsBefore, 9 TransitionsAfterwards, 330 CoEnabledTransitionPairs, 6 FixpointIterations, 22 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 1 ChoiceCompositions, 53 TotalNumberOfCompositions, 250 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 250, independent: 250, independent conditional: 0, independent unconditional: 250, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 203, independent: 203, independent conditional: 0, independent unconditional: 203, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 203, independent: 203, independent conditional: 0, independent unconditional: 203, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 250, independent: 47, independent conditional: 0, independent unconditional: 47, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 203, unknown conditional: 0, unknown unconditional: 203] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, 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: [L688] 0 int x = 3; [L689] 0 pthread_t id; [L690] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [id={3:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1, x=3] [L683] 1 int x = __VERIFIER_nondet_int(); [L684] CALL 1 __VERIFIER_assert(x == 3) [L19] COND TRUE 1 !(cond) [L19] 1 reach_error() VAL [\old(cond)=0, cond=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: 687]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 690]: 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, 65 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 5.2s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13 IncrementalHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 13 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, InterpolantAutomatonStates: 5, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 2 ConstructedInterpolants, 2 QuantifiedInterpolants, 26 SizeOfPredicates, 0 NumberOfNonLiveVariables, 39 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 [2022-11-21 17:24:43,350 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec48237-a078-46c3-8b43-2ef43ed1de46/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample