./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_neg.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d37299-41b4-4036-acfa-c649cb9ca797/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d37299-41b4-4036-acfa-c649cb9ca797/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_54d37299-41b4-4036-acfa-c649cb9ca797/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d37299-41b4-4036-acfa-c649cb9ca797/bin/uautomizer-vX5HgA9Q3a/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_neg.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d37299-41b4-4036-acfa-c649cb9ca797/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_54d37299-41b4-4036-acfa-c649cb9ca797/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 efd273c7d755fee5b08c1ba81e4b1fd2265522d7f0703d6f8ec42ad387cd2968 --- 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 13:41:55,814 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 13:41:55,817 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 13:41:55,854 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 13:41:55,855 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 13:41:55,856 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 13:41:55,857 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 13:41:55,859 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 13:41:55,861 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 13:41:55,862 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 13:41:55,863 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 13:41:55,864 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 13:41:55,865 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 13:41:55,866 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 13:41:55,867 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 13:41:55,868 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 13:41:55,869 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 13:41:55,870 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 13:41:55,872 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 13:41:55,875 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 13:41:55,876 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 13:41:55,878 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 13:41:55,879 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 13:41:55,880 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 13:41:55,884 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 13:41:55,885 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 13:41:55,885 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 13:41:55,886 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 13:41:55,887 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 13:41:55,888 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 13:41:55,889 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 13:41:55,890 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 13:41:55,891 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 13:41:55,891 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 13:41:55,893 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 13:41:55,893 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 13:41:55,894 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 13:41:55,894 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 13:41:55,894 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 13:41:55,895 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 13:41:55,896 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 13:41:55,897 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d37299-41b4-4036-acfa-c649cb9ca797/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-21 13:41:55,919 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 13:41:55,919 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 13:41:55,919 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 13:41:55,920 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 13:41:55,920 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 13:41:55,921 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 13:41:55,921 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 13:41:55,922 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 13:41:55,922 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 13:41:55,922 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 13:41:55,922 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 13:41:55,923 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 13:41:55,923 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 13:41:55,923 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 13:41:55,923 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 13:41:55,924 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-21 13:41:55,924 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-21 13:41:55,924 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-21 13:41:55,924 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 13:41:55,925 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-21 13:41:55,925 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 13:41:55,925 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 13:41:55,925 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 13:41:55,926 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 13:41:55,926 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 13:41:55,926 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 13:41:55,926 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 13:41:55,927 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 13:41:55,927 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 13:41:55,927 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 13:41:55,927 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_54d37299-41b4-4036-acfa-c649cb9ca797/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d37299-41b4-4036-acfa-c649cb9ca797/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> efd273c7d755fee5b08c1ba81e4b1fd2265522d7f0703d6f8ec42ad387cd2968 [2022-11-21 13:41:56,151 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 13:41:56,173 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 13:41:56,176 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 13:41:56,177 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 13:41:56,178 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 13:41:56,179 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d37299-41b4-4036-acfa-c649cb9ca797/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_neg.i [2022-11-21 13:41:59,179 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 13:41:59,484 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 13:41:59,486 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d37299-41b4-4036-acfa-c649cb9ca797/sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_neg.i [2022-11-21 13:41:59,504 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d37299-41b4-4036-acfa-c649cb9ca797/bin/uautomizer-vX5HgA9Q3a/data/cb5ad5a42/aa0a530265c9468196a2d6d08de25854/FLAG8e85311de [2022-11-21 13:41:59,522 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d37299-41b4-4036-acfa-c649cb9ca797/bin/uautomizer-vX5HgA9Q3a/data/cb5ad5a42/aa0a530265c9468196a2d6d08de25854 [2022-11-21 13:41:59,527 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 13:41:59,529 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 13:41:59,533 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 13:41:59,534 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 13:41:59,537 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 13:41:59,538 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:41:59" (1/1) ... [2022-11-21 13:41:59,539 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@152574b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:41:59, skipping insertion in model container [2022-11-21 13:41:59,539 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:41:59" (1/1) ... [2022-11-21 13:41:59,547 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 13:41:59,582 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 13:41:59,751 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_54d37299-41b4-4036-acfa-c649cb9ca797/sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_neg.i[1102,1115] [2022-11-21 13:41:59,969 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 13:41:59,979 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 13:41:59,994 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_54d37299-41b4-4036-acfa-c649cb9ca797/sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_neg.i[1102,1115] [2022-11-21 13:42:00,043 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 13:42:00,084 INFO L208 MainTranslator]: Completed translation [2022-11-21 13:42:00,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:00 WrapperNode [2022-11-21 13:42:00,086 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 13:42:00,087 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 13:42:00,088 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 13:42:00,088 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 13:42:00,096 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:00" (1/1) ... [2022-11-21 13:42:00,124 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:00" (1/1) ... [2022-11-21 13:42:00,143 INFO L138 Inliner]: procedures = 162, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2022-11-21 13:42:00,144 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 13:42:00,145 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 13:42:00,145 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 13:42:00,145 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 13:42:00,154 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:00" (1/1) ... [2022-11-21 13:42:00,154 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:00" (1/1) ... [2022-11-21 13:42:00,157 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:00" (1/1) ... [2022-11-21 13:42:00,157 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:00" (1/1) ... [2022-11-21 13:42:00,174 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:00" (1/1) ... [2022-11-21 13:42:00,176 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:00" (1/1) ... [2022-11-21 13:42:00,177 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:00" (1/1) ... [2022-11-21 13:42:00,179 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:00" (1/1) ... [2022-11-21 13:42:00,182 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 13:42:00,188 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 13:42:00,188 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 13:42:00,189 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 13:42:00,190 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:00" (1/1) ... [2022-11-21 13:42:00,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 13:42:00,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d37299-41b4-4036-acfa-c649cb9ca797/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:42:00,223 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d37299-41b4-4036-acfa-c649cb9ca797/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 13:42:00,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d37299-41b4-4036-acfa-c649cb9ca797/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 13:42:00,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 13:42:00,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 13:42:00,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 13:42:00,271 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-21 13:42:00,271 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-21 13:42:00,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 13:42:00,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 13:42:00,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 13:42:00,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 13:42:00,273 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 13:42:00,480 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 13:42:00,482 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 13:42:00,635 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 13:42:00,642 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 13:42:00,642 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 13:42:00,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:42:00 BoogieIcfgContainer [2022-11-21 13:42:00,644 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 13:42:00,647 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 13:42:00,647 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 13:42:00,650 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 13:42:00,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:41:59" (1/3) ... [2022-11-21 13:42:00,651 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24e38fa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:42:00, skipping insertion in model container [2022-11-21 13:42:00,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:00" (2/3) ... [2022-11-21 13:42:00,652 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24e38fa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:42:00, skipping insertion in model container [2022-11-21 13:42:00,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:42:00" (3/3) ... [2022-11-21 13:42:00,654 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_41-threadenter-no-locals_unknown_1_neg.i [2022-11-21 13:42:00,674 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 13:42:00,674 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-21 13:42:00,674 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 13:42:00,714 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-21 13:42:00,749 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-21 13:42:00,765 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 52 places, 49 transitions, 103 flow [2022-11-21 13:42:00,768 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 52 places, 49 transitions, 103 flow [2022-11-21 13:42:00,770 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 52 places, 49 transitions, 103 flow [2022-11-21 13:42:00,804 INFO L130 PetriNetUnfolder]: 1/48 cut-off events. [2022-11-21 13:42:00,804 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 13:42:00,808 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 13:42:00,809 INFO L119 LiptonReduction]: Number of co-enabled transitions 352 [2022-11-21 13:42:03,097 INFO L134 LiptonReduction]: Checked pairs total: 269 [2022-11-21 13:42:03,097 INFO L136 LiptonReduction]: Total number of compositions: 57 [2022-11-21 13:42:03,105 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 13 places, 9 transitions, 23 flow [2022-11-21 13:42:03,115 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 13:42:03,133 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 13:42:03,139 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;@3aad2ead, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 13:42:03,140 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-21 13:42:03,141 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 13:42:03,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-21 13:42:03,146 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:42:03,146 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-21 13:42:03,147 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 13:42:03,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:42:03,152 INFO L85 PathProgramCache]: Analyzing trace with hash 202, now seen corresponding path program 1 times [2022-11-21 13:42:03,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:42:03,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927049134] [2022-11-21 13:42:03,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:42:03,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:42:03,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:42:03,275 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 13:42:03,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:42:03,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927049134] [2022-11-21 13:42:03,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927049134] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:42:03,277 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:42:03,277 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-21 13:42:03,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551831239] [2022-11-21 13:42:03,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:42:03,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-21 13:42:03,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:42:03,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-21 13:42:03,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-21 13:42:03,315 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 13:42:03,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:42:03,352 INFO L93 Difference]: Finished difference Result 10 states and 12 transitions. [2022-11-21 13:42:03,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-21 13:42:03,354 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 13:42:03,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:42:03,362 INFO L225 Difference]: With dead ends: 10 [2022-11-21 13:42:03,362 INFO L226 Difference]: Without dead ends: 10 [2022-11-21 13:42:03,364 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 13:42:03,370 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 13:42:03,372 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 13:42:03,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2022-11-21 13:42:03,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2022-11-21 13:42:03,400 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 13:42:03,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2022-11-21 13:42:03,402 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 12 transitions. Word has length 1 [2022-11-21 13:42:03,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:42:03,403 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 12 transitions. [2022-11-21 13:42:03,406 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 13:42:03,408 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2022-11-21 13:42:03,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-21 13:42:03,409 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:42:03,409 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-21 13:42:03,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 13:42:03,409 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 13:42:03,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:42:03,410 INFO L85 PathProgramCache]: Analyzing trace with hash 197054, now seen corresponding path program 1 times [2022-11-21 13:42:03,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:42:03,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741766279] [2022-11-21 13:42:03,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:42:03,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:42:03,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:42:03,472 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 13:42:03,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:42:03,517 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 13:42:03,517 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-21 13:42:03,519 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (5 of 6 remaining) [2022-11-21 13:42:03,521 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 6 remaining) [2022-11-21 13:42:03,521 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 6 remaining) [2022-11-21 13:42:03,522 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (2 of 6 remaining) [2022-11-21 13:42:03,522 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2022-11-21 13:42:03,522 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 6 remaining) [2022-11-21 13:42:03,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 13:42:03,525 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-21 13:42:03,530 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-21 13:42:03,531 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 13:42:03,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 01:42:03 BasicIcfg [2022-11-21 13:42:03,549 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 13:42:03,549 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 13:42:03,550 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 13:42:03,550 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 13:42:03,550 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:42:00" (3/4) ... [2022-11-21 13:42:03,553 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-21 13:42:03,553 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 13:42:03,554 INFO L158 Benchmark]: Toolchain (without parser) took 4024.68ms. Allocated memory is still 205.5MB. Free memory was 171.0MB in the beginning and 95.5MB in the end (delta: 75.5MB). Peak memory consumption was 75.2MB. Max. memory is 16.1GB. [2022-11-21 13:42:03,554 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 146.8MB. Free memory is still 88.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 13:42:03,555 INFO L158 Benchmark]: CACSL2BoogieTranslator took 553.17ms. Allocated memory is still 205.5MB. Free memory was 170.3MB in the beginning and 152.1MB in the end (delta: 18.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-21 13:42:03,555 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.85ms. Allocated memory is still 205.5MB. Free memory was 152.1MB in the beginning and 150.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 13:42:03,555 INFO L158 Benchmark]: Boogie Preprocessor took 42.60ms. Allocated memory is still 205.5MB. Free memory was 150.8MB in the beginning and 149.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 13:42:03,556 INFO L158 Benchmark]: RCFGBuilder took 456.26ms. Allocated memory is still 205.5MB. Free memory was 149.4MB in the beginning and 137.5MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-21 13:42:03,556 INFO L158 Benchmark]: TraceAbstraction took 2902.17ms. Allocated memory is still 205.5MB. Free memory was 136.8MB in the beginning and 95.5MB in the end (delta: 41.3MB). Peak memory consumption was 41.6MB. Max. memory is 16.1GB. [2022-11-21 13:42:03,556 INFO L158 Benchmark]: Witness Printer took 3.73ms. Allocated memory is still 205.5MB. Free memory is still 95.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 13:42:03,559 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 146.8MB. Free memory is still 88.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 553.17ms. Allocated memory is still 205.5MB. Free memory was 170.3MB in the beginning and 152.1MB in the end (delta: 18.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.85ms. Allocated memory is still 205.5MB. Free memory was 152.1MB in the beginning and 150.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 42.60ms. Allocated memory is still 205.5MB. Free memory was 150.8MB in the beginning and 149.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 456.26ms. Allocated memory is still 205.5MB. Free memory was 149.4MB in the beginning and 137.5MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2902.17ms. Allocated memory is still 205.5MB. Free memory was 136.8MB in the beginning and 95.5MB in the end (delta: 41.3MB). Peak memory consumption was 41.6MB. Max. memory is 16.1GB. * Witness Printer took 3.73ms. Allocated memory is still 205.5MB. Free memory is still 95.5MB. 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: 2.3s, 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={5:0}, 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: 2.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.4s, 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 13:42:03,583 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d37299-41b4-4036-acfa-c649cb9ca797/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d37299-41b4-4036-acfa-c649cb9ca797/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d37299-41b4-4036-acfa-c649cb9ca797/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_54d37299-41b4-4036-acfa-c649cb9ca797/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d37299-41b4-4036-acfa-c649cb9ca797/bin/uautomizer-vX5HgA9Q3a/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_neg.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d37299-41b4-4036-acfa-c649cb9ca797/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_54d37299-41b4-4036-acfa-c649cb9ca797/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 efd273c7d755fee5b08c1ba81e4b1fd2265522d7f0703d6f8ec42ad387cd2968 --- 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 13:42:06,017 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 13:42:06,019 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 13:42:06,053 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 13:42:06,057 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 13:42:06,061 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 13:42:06,066 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 13:42:06,071 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 13:42:06,074 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 13:42:06,079 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 13:42:06,080 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 13:42:06,082 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 13:42:06,083 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 13:42:06,085 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 13:42:06,088 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 13:42:06,090 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 13:42:06,093 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 13:42:06,094 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 13:42:06,097 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 13:42:06,102 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 13:42:06,107 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 13:42:06,109 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 13:42:06,112 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 13:42:06,113 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 13:42:06,119 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 13:42:06,123 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 13:42:06,124 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 13:42:06,125 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 13:42:06,127 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 13:42:06,128 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 13:42:06,129 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 13:42:06,130 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 13:42:06,135 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 13:42:06,136 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 13:42:06,137 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 13:42:06,137 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 13:42:06,138 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 13:42:06,138 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 13:42:06,139 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 13:42:06,140 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 13:42:06,140 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 13:42:06,145 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d37299-41b4-4036-acfa-c649cb9ca797/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-11-21 13:42:06,186 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 13:42:06,187 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 13:42:06,188 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 13:42:06,188 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 13:42:06,189 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 13:42:06,189 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 13:42:06,190 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 13:42:06,190 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 13:42:06,191 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 13:42:06,191 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 13:42:06,192 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 13:42:06,192 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 13:42:06,192 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 13:42:06,193 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 13:42:06,193 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 13:42:06,193 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-21 13:42:06,194 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-21 13:42:06,194 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-21 13:42:06,194 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 13:42:06,194 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-21 13:42:06,195 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-21 13:42:06,195 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-21 13:42:06,195 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 13:42:06,195 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 13:42:06,196 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 13:42:06,196 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 13:42:06,196 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 13:42:06,197 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 13:42:06,197 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 13:42:06,197 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 13:42:06,197 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-21 13:42:06,198 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-21 13:42:06,198 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-21 13:42:06,198 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_54d37299-41b4-4036-acfa-c649cb9ca797/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d37299-41b4-4036-acfa-c649cb9ca797/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> efd273c7d755fee5b08c1ba81e4b1fd2265522d7f0703d6f8ec42ad387cd2968 [2022-11-21 13:42:06,635 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 13:42:06,656 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 13:42:06,659 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 13:42:06,660 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 13:42:06,661 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 13:42:06,662 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d37299-41b4-4036-acfa-c649cb9ca797/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_neg.i [2022-11-21 13:42:09,670 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 13:42:09,997 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 13:42:09,998 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d37299-41b4-4036-acfa-c649cb9ca797/sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_neg.i [2022-11-21 13:42:10,049 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d37299-41b4-4036-acfa-c649cb9ca797/bin/uautomizer-vX5HgA9Q3a/data/b5bc1c5a4/3ea6831090da44b7b4bda387d5867d2a/FLAG1ce2b37fc [2022-11-21 13:42:10,070 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d37299-41b4-4036-acfa-c649cb9ca797/bin/uautomizer-vX5HgA9Q3a/data/b5bc1c5a4/3ea6831090da44b7b4bda387d5867d2a [2022-11-21 13:42:10,075 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 13:42:10,076 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 13:42:10,081 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 13:42:10,081 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 13:42:10,085 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 13:42:10,086 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:42:10" (1/1) ... [2022-11-21 13:42:10,087 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74dd11f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:10, skipping insertion in model container [2022-11-21 13:42:10,088 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:42:10" (1/1) ... [2022-11-21 13:42:10,095 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 13:42:10,152 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 13:42:10,369 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_54d37299-41b4-4036-acfa-c649cb9ca797/sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_neg.i[1102,1115] [2022-11-21 13:42:10,549 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 13:42:10,564 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 13:42:10,583 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_54d37299-41b4-4036-acfa-c649cb9ca797/sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_neg.i[1102,1115] [2022-11-21 13:42:10,606 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 13:42:10,643 INFO L208 MainTranslator]: Completed translation [2022-11-21 13:42:10,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:10 WrapperNode [2022-11-21 13:42:10,644 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 13:42:10,646 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 13:42:10,646 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 13:42:10,646 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 13:42:10,654 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:10" (1/1) ... [2022-11-21 13:42:10,677 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:10" (1/1) ... [2022-11-21 13:42:10,696 INFO L138 Inliner]: procedures = 165, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2022-11-21 13:42:10,697 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 13:42:10,697 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 13:42:10,698 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 13:42:10,698 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 13:42:10,707 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:10" (1/1) ... [2022-11-21 13:42:10,707 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:10" (1/1) ... [2022-11-21 13:42:10,710 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:10" (1/1) ... [2022-11-21 13:42:10,711 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:10" (1/1) ... [2022-11-21 13:42:10,717 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:10" (1/1) ... [2022-11-21 13:42:10,719 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:10" (1/1) ... [2022-11-21 13:42:10,721 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:10" (1/1) ... [2022-11-21 13:42:10,722 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:10" (1/1) ... [2022-11-21 13:42:10,724 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 13:42:10,725 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 13:42:10,726 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 13:42:10,726 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 13:42:10,727 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:10" (1/1) ... [2022-11-21 13:42:10,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 13:42:10,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d37299-41b4-4036-acfa-c649cb9ca797/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:42:10,765 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d37299-41b4-4036-acfa-c649cb9ca797/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 13:42:10,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d37299-41b4-4036-acfa-c649cb9ca797/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 13:42:10,807 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 13:42:10,808 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 13:42:10,808 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-21 13:42:10,808 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-21 13:42:10,808 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 13:42:10,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-21 13:42:10,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-21 13:42:10,808 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 13:42:10,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 13:42:10,810 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 13:42:10,957 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 13:42:10,959 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 13:42:11,151 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 13:42:11,164 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 13:42:11,165 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 13:42:11,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:42:11 BoogieIcfgContainer [2022-11-21 13:42:11,167 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 13:42:11,169 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 13:42:11,169 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 13:42:11,172 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 13:42:11,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:42:10" (1/3) ... [2022-11-21 13:42:11,173 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31443e3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:42:11, skipping insertion in model container [2022-11-21 13:42:11,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:10" (2/3) ... [2022-11-21 13:42:11,174 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31443e3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:42:11, skipping insertion in model container [2022-11-21 13:42:11,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:42:11" (3/3) ... [2022-11-21 13:42:11,177 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_41-threadenter-no-locals_unknown_1_neg.i [2022-11-21 13:42:11,195 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 13:42:11,195 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-21 13:42:11,196 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 13:42:11,253 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-21 13:42:11,285 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-21 13:42:11,301 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 52 places, 49 transitions, 103 flow [2022-11-21 13:42:11,304 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 52 places, 49 transitions, 103 flow [2022-11-21 13:42:11,306 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 52 places, 49 transitions, 103 flow [2022-11-21 13:42:11,338 INFO L130 PetriNetUnfolder]: 1/48 cut-off events. [2022-11-21 13:42:11,339 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 13:42:11,343 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 13:42:11,344 INFO L119 LiptonReduction]: Number of co-enabled transitions 330 [2022-11-21 13:42:15,140 INFO L134 LiptonReduction]: Checked pairs total: 250 [2022-11-21 13:42:15,140 INFO L136 LiptonReduction]: Total number of compositions: 53 [2022-11-21 13:42:15,149 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 13 places, 9 transitions, 23 flow [2022-11-21 13:42:15,159 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 13:42:15,180 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 13:42:15,187 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;@154e44ee, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 13:42:15,188 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-21 13:42:15,190 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 13:42:15,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-21 13:42:15,195 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:42:15,196 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-21 13:42:15,196 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 13:42:15,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:42:15,202 INFO L85 PathProgramCache]: Analyzing trace with hash 202, now seen corresponding path program 1 times [2022-11-21 13:42:15,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 13:42:15,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [565444866] [2022-11-21 13:42:15,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:42:15,217 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 13:42:15,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d37299-41b4-4036-acfa-c649cb9ca797/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 13:42:15,222 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d37299-41b4-4036-acfa-c649cb9ca797/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 13:42:15,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d37299-41b4-4036-acfa-c649cb9ca797/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 13:42:15,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:42:15,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-21 13:42:15,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:42:15,293 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 13:42:15,293 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 13:42:15,294 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 13:42:15,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [565444866] [2022-11-21 13:42:15,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [565444866] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:42:15,295 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:42:15,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-21 13:42:15,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930657692] [2022-11-21 13:42:15,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:42:15,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-21 13:42:15,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 13:42:15,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-21 13:42:15,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-21 13:42:15,327 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 13:42:15,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:42:15,371 INFO L93 Difference]: Finished difference Result 10 states and 12 transitions. [2022-11-21 13:42:15,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-21 13:42:15,374 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 13:42:15,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:42:15,381 INFO L225 Difference]: With dead ends: 10 [2022-11-21 13:42:15,381 INFO L226 Difference]: Without dead ends: 10 [2022-11-21 13:42:15,382 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 13:42:15,391 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 13:42:15,392 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 13:42:15,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2022-11-21 13:42:15,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2022-11-21 13:42:15,456 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 13:42:15,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2022-11-21 13:42:15,457 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 12 transitions. Word has length 1 [2022-11-21 13:42:15,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:42:15,458 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 12 transitions. [2022-11-21 13:42:15,458 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 13:42:15,458 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2022-11-21 13:42:15,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-21 13:42:15,459 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:42:15,459 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-21 13:42:15,473 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d37299-41b4-4036-acfa-c649cb9ca797/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 13:42:15,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d37299-41b4-4036-acfa-c649cb9ca797/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 13:42:15,670 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 13:42:15,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:42:15,671 INFO L85 PathProgramCache]: Analyzing trace with hash 197010, now seen corresponding path program 1 times [2022-11-21 13:42:15,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 13:42:15,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1913661681] [2022-11-21 13:42:15,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:42:15,672 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 13:42:15,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d37299-41b4-4036-acfa-c649cb9ca797/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 13:42:15,673 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d37299-41b4-4036-acfa-c649cb9ca797/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 13:42:15,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d37299-41b4-4036-acfa-c649cb9ca797/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 13:42:15,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:42:15,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-21 13:42:15,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:42:15,855 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 13:42:15,856 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 13:42:15,857 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 13:42:15,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1913661681] [2022-11-21 13:42:15,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1913661681] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:42:15,863 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:42:15,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-21 13:42:15,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889231094] [2022-11-21 13:42:15,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:42:15,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 13:42:15,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 13:42:15,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 13:42:15,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 13:42:15,874 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 13:42:15,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:42:15,903 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions. [2022-11-21 13:42:15,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 13:42:15,904 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 13:42:15,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:42:15,905 INFO L225 Difference]: With dead ends: 7 [2022-11-21 13:42:15,905 INFO L226 Difference]: Without dead ends: 6 [2022-11-21 13:42:15,905 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 13:42:15,908 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 13:42:15,915 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 13:42:15,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2022-11-21 13:42:15,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2022-11-21 13:42:15,920 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 13:42:15,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2022-11-21 13:42:15,921 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 3 [2022-11-21 13:42:15,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:42:15,921 INFO L495 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2022-11-21 13:42:15,921 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 13:42:15,922 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2022-11-21 13:42:15,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-21 13:42:15,922 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:42:15,922 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-21 13:42:15,939 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d37299-41b4-4036-acfa-c649cb9ca797/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)] Ended with exit code 0 [2022-11-21 13:42:16,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d37299-41b4-4036-acfa-c649cb9ca797/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 13:42:16,138 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 13:42:16,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:42:16,138 INFO L85 PathProgramCache]: Analyzing trace with hash 197017, now seen corresponding path program 1 times [2022-11-21 13:42:16,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 13:42:16,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1885906594] [2022-11-21 13:42:16,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:42:16,140 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 13:42:16,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d37299-41b4-4036-acfa-c649cb9ca797/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 13:42:16,179 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d37299-41b4-4036-acfa-c649cb9ca797/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 13:42:16,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d37299-41b4-4036-acfa-c649cb9ca797/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 13:42:16,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:42:16,235 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 13:42:16,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:42:16,267 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-21 13:42:16,267 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-21 13:42:16,268 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (5 of 6 remaining) [2022-11-21 13:42:16,270 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 6 remaining) [2022-11-21 13:42:16,280 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 6 remaining) [2022-11-21 13:42:16,281 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (2 of 6 remaining) [2022-11-21 13:42:16,281 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2022-11-21 13:42:16,281 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 6 remaining) [2022-11-21 13:42:16,331 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d37299-41b4-4036-acfa-c649cb9ca797/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 13:42:16,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d37299-41b4-4036-acfa-c649cb9ca797/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 13:42:16,484 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-21 13:42:16,489 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-21 13:42:16,489 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 13:42:16,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 01:42:16 BasicIcfg [2022-11-21 13:42:16,503 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 13:42:16,503 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 13:42:16,503 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 13:42:16,504 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 13:42:16,504 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:42:11" (3/4) ... [2022-11-21 13:42:16,506 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-21 13:42:16,506 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 13:42:16,507 INFO L158 Benchmark]: Toolchain (without parser) took 6430.56ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 72.4MB in the beginning and 75.6MB in the end (delta: -3.2MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. [2022-11-21 13:42:16,507 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 60.8MB. Free memory is still 38.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 13:42:16,508 INFO L158 Benchmark]: CACSL2BoogieTranslator took 563.99ms. Allocated memory is still 92.3MB. Free memory was 72.4MB in the beginning and 53.0MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-21 13:42:16,508 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.11ms. Allocated memory is still 92.3MB. Free memory was 53.0MB in the beginning and 50.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 13:42:16,509 INFO L158 Benchmark]: Boogie Preprocessor took 27.25ms. Allocated memory is still 92.3MB. Free memory was 50.8MB in the beginning and 49.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 13:42:16,509 INFO L158 Benchmark]: RCFGBuilder took 441.42ms. Allocated memory is still 92.3MB. Free memory was 49.6MB in the beginning and 67.1MB in the end (delta: -17.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-21 13:42:16,510 INFO L158 Benchmark]: TraceAbstraction took 5334.12ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 66.2MB in the beginning and 75.6MB in the end (delta: -9.4MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. [2022-11-21 13:42:16,510 INFO L158 Benchmark]: Witness Printer took 2.86ms. Allocated memory is still 111.1MB. Free memory is still 75.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 13:42:16,512 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 60.8MB. Free memory is still 38.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 563.99ms. Allocated memory is still 92.3MB. Free memory was 72.4MB in the beginning and 53.0MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.11ms. Allocated memory is still 92.3MB. Free memory was 53.0MB in the beginning and 50.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.25ms. Allocated memory is still 92.3MB. Free memory was 50.8MB in the beginning and 49.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 441.42ms. Allocated memory is still 92.3MB. Free memory was 49.6MB in the beginning and 67.1MB in the end (delta: -17.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 5334.12ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 66.2MB in the beginning and 75.6MB in the end (delta: -9.4MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. * Witness Printer took 2.86ms. Allocated memory is still 111.1MB. Free memory is still 75.6MB. 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: 0.1s, 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, 0.1s 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: 0.1s 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 13:42:16,531 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d37299-41b4-4036-acfa-c649cb9ca797/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 Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample