./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_85-list2_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 6b4ec56b 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_05b9d46d-995d-46ed-8048-839827f646d3/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05b9d46d-995d-46ed-8048-839827f646d3/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05b9d46d-995d-46ed-8048-839827f646d3/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05b9d46d-995d-46ed-8048-839827f646d3/bin/uautomizer-ug76WZFUDN/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_85-list2_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05b9d46d-995d-46ed-8048-839827f646d3/bin/uautomizer-ug76WZFUDN/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05b9d46d-995d-46ed-8048-839827f646d3/bin/uautomizer-ug76WZFUDN --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 da9f6c449f4da806b6a3bb0aaf2c3c9171ea9b71d075f7e8b1d9543f656f7b8b --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 10:57:04,598 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:57:04,601 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:57:04,638 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:57:04,639 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:57:04,640 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:57:04,641 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:57:04,643 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:57:04,645 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:57:04,646 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:57:04,648 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:57:04,649 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:57:04,650 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:57:04,651 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:57:04,652 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:57:04,654 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:57:04,659 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:57:04,660 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:57:04,662 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:57:04,668 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:57:04,678 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:57:04,679 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:57:04,681 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:57:04,682 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:57:04,686 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:57:04,686 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:57:04,687 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:57:04,688 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:57:04,689 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:57:04,690 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:57:04,690 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:57:04,691 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:57:04,692 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:57:04,693 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:57:04,695 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:57:04,695 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:57:04,696 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:57:04,697 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:57:04,697 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:57:04,698 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:57:04,699 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:57:04,700 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05b9d46d-995d-46ed-8048-839827f646d3/bin/uautomizer-ug76WZFUDN/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-20 10:57:04,726 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:57:04,727 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:57:04,727 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:57:04,727 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:57:04,728 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:57:04,729 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:57:04,729 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:57:04,730 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:57:04,730 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:57:04,731 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:57:04,731 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 10:57:04,731 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 10:57:04,732 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:57:04,732 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 10:57:04,732 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:57:04,732 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-20 10:57:04,733 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-20 10:57:04,733 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-20 10:57:04,733 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:57:04,733 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 10:57:04,734 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 10:57:04,734 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:57:04,734 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:57:04,735 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:57:04,735 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:57:04,735 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:57:04,736 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:57:04,736 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:57:04,736 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:57:04,736 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 10:57:04,737 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_05b9d46d-995d-46ed-8048-839827f646d3/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05b9d46d-995d-46ed-8048-839827f646d3/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da9f6c449f4da806b6a3bb0aaf2c3c9171ea9b71d075f7e8b1d9543f656f7b8b [2022-11-20 10:57:05,043 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:57:05,069 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:57:05,072 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:57:05,073 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:57:05,074 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:57:05,075 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05b9d46d-995d-46ed-8048-839827f646d3/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/goblint-regression/28-race_reach_85-list2_racefree.i [2022-11-20 10:57:08,525 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:57:08,885 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:57:08,886 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05b9d46d-995d-46ed-8048-839827f646d3/sv-benchmarks/c/goblint-regression/28-race_reach_85-list2_racefree.i [2022-11-20 10:57:08,911 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05b9d46d-995d-46ed-8048-839827f646d3/bin/uautomizer-ug76WZFUDN/data/82e078579/269bb61889d04762a4a6b90765a6ade1/FLAG67f4d69b2 [2022-11-20 10:57:08,935 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05b9d46d-995d-46ed-8048-839827f646d3/bin/uautomizer-ug76WZFUDN/data/82e078579/269bb61889d04762a4a6b90765a6ade1 [2022-11-20 10:57:08,944 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:57:08,945 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:57:08,947 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:57:08,947 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:57:08,951 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:57:08,952 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:57:08" (1/1) ... [2022-11-20 10:57:08,953 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@509cdd5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:57:08, skipping insertion in model container [2022-11-20 10:57:08,953 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:57:08" (1/1) ... [2022-11-20 10:57:08,962 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:57:09,016 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:57:09,567 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_05b9d46d-995d-46ed-8048-839827f646d3/sv-benchmarks/c/goblint-regression/28-race_reach_85-list2_racefree.i[47038,47051] [2022-11-20 10:57:09,647 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:57:09,672 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:57:09,742 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_05b9d46d-995d-46ed-8048-839827f646d3/sv-benchmarks/c/goblint-regression/28-race_reach_85-list2_racefree.i[47038,47051] [2022-11-20 10:57:09,769 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:57:09,866 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:57:09,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:57:09 WrapperNode [2022-11-20 10:57:09,869 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:57:09,871 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:57:09,872 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:57:09,872 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:57:09,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:57:09" (1/1) ... [2022-11-20 10:57:09,929 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:57:09" (1/1) ... [2022-11-20 10:57:09,996 INFO L138 Inliner]: procedures = 279, calls = 86, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 339 [2022-11-20 10:57:09,996 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:57:09,997 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:57:09,997 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:57:09,998 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:57:10,010 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:57:09" (1/1) ... [2022-11-20 10:57:10,010 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:57:09" (1/1) ... [2022-11-20 10:57:10,025 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:57:09" (1/1) ... [2022-11-20 10:57:10,025 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:57:09" (1/1) ... [2022-11-20 10:57:10,039 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:57:09" (1/1) ... [2022-11-20 10:57:10,046 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:57:09" (1/1) ... [2022-11-20 10:57:10,049 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:57:09" (1/1) ... [2022-11-20 10:57:10,051 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:57:09" (1/1) ... [2022-11-20 10:57:10,056 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:57:10,057 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:57:10,057 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:57:10,057 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:57:10,058 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:57:09" (1/1) ... [2022-11-20 10:57:10,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:57:10,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05b9d46d-995d-46ed-8048-839827f646d3/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:57:10,096 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05b9d46d-995d-46ed-8048-839827f646d3/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:57:10,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05b9d46d-995d-46ed-8048-839827f646d3/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:57:10,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 10:57:10,147 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 10:57:10,147 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2022-11-20 10:57:10,147 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2022-11-20 10:57:10,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 10:57:10,147 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 10:57:10,148 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2022-11-20 10:57:10,148 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2022-11-20 10:57:10,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 10:57:10,148 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-20 10:57:10,148 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 10:57:10,149 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 10:57:10,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 10:57:10,149 INFO L130 BoogieDeclarations]: Found specification of procedure t3_fun [2022-11-20 10:57:10,149 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_fun [2022-11-20 10:57:10,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 10:57:10,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:57:10,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:57:10,152 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 10:57:10,381 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:57:10,387 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:57:11,493 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:57:11,524 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:57:11,525 INFO L300 CfgBuilder]: Removed 28 assume(true) statements. [2022-11-20 10:57:11,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:57:11 BoogieIcfgContainer [2022-11-20 10:57:11,528 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:57:11,532 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 10:57:11,532 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 10:57:11,540 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 10:57:11,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:57:08" (1/3) ... [2022-11-20 10:57:11,543 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@347ced42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:57:11, skipping insertion in model container [2022-11-20 10:57:11,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:57:09" (2/3) ... [2022-11-20 10:57:11,545 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@347ced42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:57:11, skipping insertion in model container [2022-11-20 10:57:11,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:57:11" (3/3) ... [2022-11-20 10:57:11,548 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_85-list2_racefree.i [2022-11-20 10:57:11,570 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 10:57:11,570 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 61 error locations. [2022-11-20 10:57:11,570 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 10:57:11,841 INFO L144 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2022-11-20 10:57:11,906 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-20 10:57:11,924 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 387 places, 425 transitions, 892 flow [2022-11-20 10:57:11,928 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 387 places, 425 transitions, 892 flow [2022-11-20 10:57:11,930 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 387 places, 425 transitions, 892 flow [2022-11-20 10:57:12,666 INFO L130 PetriNetUnfolder]: 164/1302 cut-off events. [2022-11-20 10:57:12,667 INFO L131 PetriNetUnfolder]: For 36/65 co-relation queries the response was YES. [2022-11-20 10:57:12,707 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1363 conditions, 1302 events. 164/1302 cut-off events. For 36/65 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 9015 event pairs, 0 based on Foata normal form. 0/936 useless extension candidates. Maximal degree in co-relation 673. Up to 16 conditions per place. [2022-11-20 10:57:12,794 INFO L119 LiptonReduction]: Number of co-enabled transitions 77264 [2022-11-20 10:57:54,282 WARN L233 SmtUtils]: Spent 5.70s on a formula simplification. DAG size of input: 266 DAG size of output: 258 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-20 10:58:03,165 WARN L233 SmtUtils]: Spent 5.51s on a formula simplification. DAG size of input: 266 DAG size of output: 261 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-20 10:58:04,754 INFO L134 LiptonReduction]: Checked pairs total: 220848 [2022-11-20 10:58:04,755 INFO L136 LiptonReduction]: Total number of compositions: 389 [2022-11-20 10:58:04,763 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 146 places, 175 transitions, 392 flow [2022-11-20 10:58:29,904 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 640915 states, 593881 states have (on average 4.834062716268074) internal successors, (2870858), 640914 states have internal predecessors, (2870858), 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) [2022-11-20 10:58:29,951 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:58:29,957 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;@7eb42923, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:58:29,958 INFO L358 AbstractCegarLoop]: Starting to check reachability of 104 error locations. [2022-11-20 10:58:30,883 INFO L276 IsEmpty]: Start isEmpty. Operand has 640915 states, 593881 states have (on average 4.834062716268074) internal successors, (2870858), 640914 states have internal predecessors, (2870858), 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) [2022-11-20 10:58:30,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-20 10:58:30,907 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:58:30,908 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-20 10:58:30,910 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t2_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t2_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t2_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 101 more)] === [2022-11-20 10:58:30,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:58:30,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1682, now seen corresponding path program 1 times [2022-11-20 10:58:30,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:58:30,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466424835] [2022-11-20 10:58:30,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:58:30,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:58:31,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:58:31,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:58:31,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:58:31,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466424835] [2022-11-20 10:58:31,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466424835] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:58:31,110 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:58:31,110 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-20 10:58:31,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870532937] [2022-11-20 10:58:31,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:58:31,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 10:58:31,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:58:31,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 10:58:31,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 10:58:35,281 INFO L87 Difference]: Start difference. First operand has 640915 states, 593881 states have (on average 4.834062716268074) internal successors, (2870858), 640914 states have internal predecessors, (2870858), 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) [2022-11-20 10:58:49,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:58:49,966 INFO L93 Difference]: Finished difference Result 640907 states and 2464940 transitions. [2022-11-20 10:58:49,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 10:58:49,970 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 [2022-11-20 10:58:49,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:58:57,896 INFO L225 Difference]: With dead ends: 640907 [2022-11-20 10:58:57,897 INFO L226 Difference]: Without dead ends: 640690 [2022-11-20 10:58:57,898 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 [2022-11-20 10:58:57,904 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 10:58:57,912 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]