./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673b3293-4d9e-4395-8ba4-09061694bc6d/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673b3293-4d9e-4395-8ba4-09061694bc6d/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673b3293-4d9e-4395-8ba4-09061694bc6d/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673b3293-4d9e-4395-8ba4-09061694bc6d/bin/utaipan-g80aRyZoba/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_neg.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673b3293-4d9e-4395-8ba4-09061694bc6d/bin/utaipan-g80aRyZoba/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673b3293-4d9e-4395-8ba4-09061694bc6d/bin/utaipan-g80aRyZoba --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5810db9e04eaaf68f2d5e8f47b6f306a494391110fbd2d6436879e3ba39873f3 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 01:36:36,161 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:36:36,163 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:36:36,202 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:36:36,202 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:36:36,206 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:36:36,208 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:36:36,211 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:36:36,213 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:36:36,218 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:36:36,219 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:36:36,220 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:36:36,221 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:36:36,221 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:36:36,222 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:36:36,223 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:36:36,224 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:36:36,225 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:36:36,229 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:36:36,235 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:36:36,237 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:36:36,240 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:36:36,242 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:36:36,243 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:36:36,254 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:36:36,254 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:36:36,254 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:36:36,256 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:36:36,257 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:36:36,258 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:36:36,258 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:36:36,259 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:36:36,261 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:36:36,262 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:36:36,263 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:36:36,263 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:36:36,264 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:36:36,264 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:36:36,265 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:36:36,266 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:36:36,267 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:36:36,268 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673b3293-4d9e-4395-8ba4-09061694bc6d/bin/utaipan-g80aRyZoba/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-11-22 01:36:36,309 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:36:36,309 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:36:36,309 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:36:36,310 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:36:36,310 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:36:36,311 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:36:36,311 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:36:36,311 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:36:36,311 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:36:36,311 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:36:36,312 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:36:36,313 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:36:36,313 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:36:36,313 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:36:36,313 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:36:36,313 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:36:36,314 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:36:36,314 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:36:36,314 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-22 01:36:36,314 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-22 01:36:36,315 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:36:36,315 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 01:36:36,315 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 01:36:36,315 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:36:36,316 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 01:36:36,316 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:36:36,316 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-22 01:36:36,316 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-22 01:36:36,317 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-22 01:36:36,317 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:36:36,317 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-22 01:36:36,317 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 01:36:36,317 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:36:36,318 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:36:36,318 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:36:36,318 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:36:36,318 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:36:36,318 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:36:36,318 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:36:36,319 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:36:36,319 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:36:36,319 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:36:36,319 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_673b3293-4d9e-4395-8ba4-09061694bc6d/bin/utaipan-g80aRyZoba/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673b3293-4d9e-4395-8ba4-09061694bc6d/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5810db9e04eaaf68f2d5e8f47b6f306a494391110fbd2d6436879e3ba39873f3 [2022-11-22 01:36:36,598 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:36:36,642 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:36:36,646 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:36:36,647 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:36:36,647 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:36:36,649 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673b3293-4d9e-4395-8ba4-09061694bc6d/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_neg.i [2022-11-22 01:36:39,701 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:36:39,934 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:36:39,935 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673b3293-4d9e-4395-8ba4-09061694bc6d/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_neg.i [2022-11-22 01:36:39,949 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673b3293-4d9e-4395-8ba4-09061694bc6d/bin/utaipan-g80aRyZoba/data/106197c43/a319762e462f4695bdc721057d810545/FLAG22b901a04 [2022-11-22 01:36:39,968 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673b3293-4d9e-4395-8ba4-09061694bc6d/bin/utaipan-g80aRyZoba/data/106197c43/a319762e462f4695bdc721057d810545 [2022-11-22 01:36:39,973 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:36:39,974 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:36:39,978 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:36:39,978 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:36:39,982 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:36:39,983 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:36:39" (1/1) ... [2022-11-22 01:36:39,984 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4722fe6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:36:39, skipping insertion in model container [2022-11-22 01:36:39,985 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:36:39" (1/1) ... [2022-11-22 01:36:39,992 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:36:40,038 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:36:40,205 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_673b3293-4d9e-4395-8ba4-09061694bc6d/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_neg.i[1103,1116] [2022-11-22 01:36:40,414 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:36:40,431 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:36:40,446 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_673b3293-4d9e-4395-8ba4-09061694bc6d/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_neg.i[1103,1116] [2022-11-22 01:36:40,493 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:36:40,534 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:36:40,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:36:40 WrapperNode [2022-11-22 01:36:40,535 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:36:40,537 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:36:40,537 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:36:40,537 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:36:40,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:36:40" (1/1) ... [2022-11-22 01:36:40,581 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:36:40" (1/1) ... [2022-11-22 01:36:40,610 INFO L138 Inliner]: procedures = 162, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 49 [2022-11-22 01:36:40,610 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:36:40,611 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:36:40,611 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:36:40,611 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:36:40,620 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:36:40" (1/1) ... [2022-11-22 01:36:40,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:36:40" (1/1) ... [2022-11-22 01:36:40,630 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:36:40" (1/1) ... [2022-11-22 01:36:40,631 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:36:40" (1/1) ... [2022-11-22 01:36:40,647 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:36:40" (1/1) ... [2022-11-22 01:36:40,652 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:36:40" (1/1) ... [2022-11-22 01:36:40,654 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:36:40" (1/1) ... [2022-11-22 01:36:40,660 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:36:40" (1/1) ... [2022-11-22 01:36:40,662 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:36:40,663 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:36:40,673 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:36:40,673 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:36:40,674 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:36:40" (1/1) ... [2022-11-22 01:36:40,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:36:40,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673b3293-4d9e-4395-8ba4-09061694bc6d/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:36:40,707 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673b3293-4d9e-4395-8ba4-09061694bc6d/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:36:40,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673b3293-4d9e-4395-8ba4-09061694bc6d/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:36:40,751 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 01:36:40,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 01:36:40,752 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-22 01:36:40,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:36:40,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:36:40,752 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-22 01:36:40,753 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-22 01:36:40,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:36:40,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:36:40,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:36:40,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:36:40,755 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-22 01:36:40,907 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:36:40,910 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:36:41,162 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:36:41,169 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:36:41,170 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-22 01:36:41,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:36:41 BoogieIcfgContainer [2022-11-22 01:36:41,172 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:36:41,174 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:36:41,175 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:36:41,178 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:36:41,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:36:39" (1/3) ... [2022-11-22 01:36:41,179 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23c5f1a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:36:41, skipping insertion in model container [2022-11-22 01:36:41,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:36:40" (2/3) ... [2022-11-22 01:36:41,180 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23c5f1a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:36:41, skipping insertion in model container [2022-11-22 01:36:41,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:36:41" (3/3) ... [2022-11-22 01:36:41,181 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_19-publish-precision_unknown_1_neg.i [2022-11-22 01:36:41,202 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:36:41,202 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-22 01:36:41,203 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-22 01:36:41,252 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-22 01:36:41,286 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-22 01:36:41,327 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 79 transitions, 166 flow [2022-11-22 01:36:41,330 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 79 transitions, 166 flow [2022-11-22 01:36:41,332 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 82 places, 79 transitions, 166 flow [2022-11-22 01:36:41,372 INFO L130 PetriNetUnfolder]: 1/78 cut-off events. [2022-11-22 01:36:41,373 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-22 01:36:41,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 78 events. 1/78 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 49 event pairs, 0 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 32. Up to 2 conditions per place. [2022-11-22 01:36:41,378 INFO L119 LiptonReduction]: Number of co-enabled transitions 504 [2022-11-22 01:36:44,881 INFO L134 LiptonReduction]: Checked pairs total: 1592 [2022-11-22 01:36:44,882 INFO L136 LiptonReduction]: Total number of compositions: 72 [2022-11-22 01:36:44,894 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 26 places, 22 transitions, 52 flow [2022-11-22 01:36:44,914 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 69 states, 63 states have (on average 1.8412698412698412) internal successors, (116), 68 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:44,929 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:36:44,936 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;@6f945940, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:36:44,936 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-22 01:36:44,938 INFO L276 IsEmpty]: Start isEmpty. Operand has 69 states, 63 states have (on average 1.8412698412698412) internal successors, (116), 68 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:44,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-22 01:36:44,943 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:36:44,944 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-22 01:36:44,944 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2022-11-22 01:36:44,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:36:44,950 INFO L85 PathProgramCache]: Analyzing trace with hash 280, now seen corresponding path program 1 times [2022-11-22 01:36:44,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:36:44,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748468534] [2022-11-22 01:36:44,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:36:44,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:36:45,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:36:45,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:36:45,090 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:36:45,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748468534] [2022-11-22 01:36:45,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748468534] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:36:45,092 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:36:45,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-22 01:36:45,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404059480] [2022-11-22 01:36:45,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:36:45,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-22 01:36:45,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:36:45,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-22 01:36:45,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-22 01:36:45,131 INFO L87 Difference]: Start difference. First operand has 69 states, 63 states have (on average 1.8412698412698412) internal successors, (116), 68 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:45,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:36:45,172 INFO L93 Difference]: Finished difference Result 67 states and 114 transitions. [2022-11-22 01:36:45,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-22 01:36:45,175 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-11-22 01:36:45,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:36:45,184 INFO L225 Difference]: With dead ends: 67 [2022-11-22 01:36:45,184 INFO L226 Difference]: Without dead ends: 67 [2022-11-22 01:36:45,185 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-22 01:36:45,189 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:36:45,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:36:45,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-11-22 01:36:45,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2022-11-22 01:36:45,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 63 states have (on average 1.8095238095238095) internal successors, (114), 66 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:45,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 114 transitions. [2022-11-22 01:36:45,241 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 114 transitions. Word has length 1 [2022-11-22 01:36:45,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:36:45,241 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 114 transitions. [2022-11-22 01:36:45,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:45,244 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 114 transitions. [2022-11-22 01:36:45,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-22 01:36:45,245 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:36:45,246 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-22 01:36:45,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:36:45,247 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2022-11-22 01:36:45,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:36:45,248 INFO L85 PathProgramCache]: Analyzing trace with hash 8549791, now seen corresponding path program 1 times [2022-11-22 01:36:45,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:36:45,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932485271] [2022-11-22 01:36:45,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:36:45,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:36:45,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 01:36:45,328 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-22 01:36:45,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 01:36:45,394 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-22 01:36:45,394 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-22 01:36:45,396 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (6 of 7 remaining) [2022-11-22 01:36:45,398 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-22 01:36:45,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-22 01:36:45,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-22 01:36:45,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-22 01:36:45,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-22 01:36:45,400 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 7 remaining) [2022-11-22 01:36:45,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 01:36:45,402 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-22 01:36:45,407 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-22 01:36:45,407 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 01:36:45,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:36:45 BasicIcfg [2022-11-22 01:36:45,427 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 01:36:45,427 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 01:36:45,427 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 01:36:45,428 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 01:36:45,428 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:36:41" (3/4) ... [2022-11-22 01:36:45,436 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-22 01:36:45,437 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 01:36:45,437 INFO L158 Benchmark]: Toolchain (without parser) took 5462.95ms. Allocated memory is still 180.4MB. Free memory was 143.0MB in the beginning and 89.8MB in the end (delta: 53.2MB). Peak memory consumption was 53.7MB. Max. memory is 16.1GB. [2022-11-22 01:36:45,438 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 121.6MB. Free memory was 65.5MB in the beginning and 65.3MB in the end (delta: 134.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:36:45,438 INFO L158 Benchmark]: CACSL2BoogieTranslator took 558.22ms. Allocated memory is still 180.4MB. Free memory was 143.0MB in the beginning and 123.6MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-22 01:36:45,439 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.63ms. Allocated memory is still 180.4MB. Free memory was 123.6MB in the beginning and 122.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 01:36:45,439 INFO L158 Benchmark]: Boogie Preprocessor took 51.44ms. Allocated memory is still 180.4MB. Free memory was 122.0MB in the beginning and 120.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:36:45,440 INFO L158 Benchmark]: RCFGBuilder took 508.90ms. Allocated memory is still 180.4MB. Free memory was 120.5MB in the beginning and 106.8MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-22 01:36:45,441 INFO L158 Benchmark]: TraceAbstraction took 4252.25ms. Allocated memory is still 180.4MB. Free memory was 106.3MB in the beginning and 89.8MB in the end (delta: 16.6MB). Peak memory consumption was 18.1MB. Max. memory is 16.1GB. [2022-11-22 01:36:45,441 INFO L158 Benchmark]: Witness Printer took 9.57ms. Allocated memory is still 180.4MB. Free memory is still 89.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:36:45,444 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 121.6MB. Free memory was 65.5MB in the beginning and 65.3MB in the end (delta: 134.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 558.22ms. Allocated memory is still 180.4MB. Free memory was 143.0MB in the beginning and 123.6MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.63ms. Allocated memory is still 180.4MB. Free memory was 123.6MB in the beginning and 122.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.44ms. Allocated memory is still 180.4MB. Free memory was 122.0MB in the beginning and 120.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 508.90ms. Allocated memory is still 180.4MB. Free memory was 120.5MB in the beginning and 106.8MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 4252.25ms. Allocated memory is still 180.4MB. Free memory was 106.3MB in the beginning and 89.8MB in the end (delta: 16.6MB). Peak memory consumption was 18.1MB. Max. memory is 16.1GB. * Witness Printer took 9.57ms. Allocated memory is still 180.4MB. Free memory is still 89.8MB. 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: 3.6s, 82 PlacesBefore, 26 PlacesAfterwards, 79 TransitionsBefore, 22 TransitionsAfterwards, 504 CoEnabledTransitionPairs, 6 FixpointIterations, 49 TrivialSequentialCompositions, 20 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 72 TotalNumberOfCompositions, 1592 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 989, independent: 839, independent conditional: 0, independent unconditional: 839, dependent: 150, dependent conditional: 0, dependent unconditional: 150, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 458, independent: 415, independent conditional: 0, independent unconditional: 415, dependent: 43, dependent conditional: 0, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 458, independent: 388, independent conditional: 0, independent unconditional: 388, dependent: 70, dependent conditional: 0, dependent unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 70, independent: 27, independent conditional: 0, independent unconditional: 27, dependent: 43, dependent conditional: 0, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 201, independent: 73, independent conditional: 0, independent unconditional: 73, dependent: 128, dependent conditional: 0, dependent unconditional: 128, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 989, independent: 424, independent conditional: 0, independent unconditional: 424, dependent: 107, dependent conditional: 0, dependent unconditional: 107, unknown: 458, unknown conditional: 0, unknown unconditional: 458] , Statistics on independence cache: Total cache size (in pairs): 77, Positive cache size: 60, Positive conditional cache size: 0, Positive unconditional cache size: 60, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17, 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: [L681] 0 int glob1 = 0; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L696] 0 pthread_t id; [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, glob1=0, id={5:0}, mutex1={3:0}, mutex2={4:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L699] CALL 0 __VERIFIER_assert(!(glob1 == 0)) [L19] COND TRUE 0 !(cond) [L19] 0 reach_error() VAL [\old(cond)=0, arg={0:0}, cond=0, glob1=0, mutex1={3:0}, mutex2={4:0}] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 95 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 4.1s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14 IncrementalHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 4 mSDtfsCounter, 14 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=69occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-22 01:36:45,466 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673b3293-4d9e-4395-8ba4-09061694bc6d/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673b3293-4d9e-4395-8ba4-09061694bc6d/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673b3293-4d9e-4395-8ba4-09061694bc6d/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673b3293-4d9e-4395-8ba4-09061694bc6d/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673b3293-4d9e-4395-8ba4-09061694bc6d/bin/utaipan-g80aRyZoba/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_neg.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673b3293-4d9e-4395-8ba4-09061694bc6d/bin/utaipan-g80aRyZoba/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673b3293-4d9e-4395-8ba4-09061694bc6d/bin/utaipan-g80aRyZoba --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5810db9e04eaaf68f2d5e8f47b6f306a494391110fbd2d6436879e3ba39873f3 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 01:36:48,012 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:36:48,015 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:36:48,075 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:36:48,075 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:36:48,079 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:36:48,082 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:36:48,087 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:36:48,089 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:36:48,095 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:36:48,097 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:36:48,099 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:36:48,100 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:36:48,102 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:36:48,104 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:36:48,109 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:36:48,110 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:36:48,111 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:36:48,114 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:36:48,119 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:36:48,121 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:36:48,124 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:36:48,125 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:36:48,127 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:36:48,137 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:36:48,138 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:36:48,138 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:36:48,140 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:36:48,141 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:36:48,142 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:36:48,142 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:36:48,144 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:36:48,146 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:36:48,147 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:36:48,148 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:36:48,148 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:36:48,149 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:36:48,150 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:36:48,150 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:36:48,151 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:36:48,152 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:36:48,153 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673b3293-4d9e-4395-8ba4-09061694bc6d/bin/utaipan-g80aRyZoba/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2022-11-22 01:36:48,197 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:36:48,198 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:36:48,199 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:36:48,199 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:36:48,200 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:36:48,200 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:36:48,200 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:36:48,201 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:36:48,201 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:36:48,201 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:36:48,202 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:36:48,202 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:36:48,203 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-22 01:36:48,203 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-22 01:36:48,204 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:36:48,204 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 01:36:48,204 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 01:36:48,204 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:36:48,205 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 01:36:48,205 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:36:48,205 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-22 01:36:48,205 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-22 01:36:48,206 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-22 01:36:48,206 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:36:48,206 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-22 01:36:48,206 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-22 01:36:48,206 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-22 01:36:48,207 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 01:36:48,207 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:36:48,207 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:36:48,207 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-22 01:36:48,208 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:36:48,208 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:36:48,208 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:36:48,209 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:36:48,209 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-22 01:36:48,209 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-22 01:36:48,209 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:36:48,209 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-22 01:36:48,210 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_673b3293-4d9e-4395-8ba4-09061694bc6d/bin/utaipan-g80aRyZoba/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673b3293-4d9e-4395-8ba4-09061694bc6d/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5810db9e04eaaf68f2d5e8f47b6f306a494391110fbd2d6436879e3ba39873f3 [2022-11-22 01:36:48,585 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:36:48,618 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:36:48,623 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:36:48,624 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:36:48,625 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:36:48,627 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673b3293-4d9e-4395-8ba4-09061694bc6d/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_neg.i [2022-11-22 01:36:51,754 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:36:52,036 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:36:52,037 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673b3293-4d9e-4395-8ba4-09061694bc6d/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_neg.i [2022-11-22 01:36:52,049 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673b3293-4d9e-4395-8ba4-09061694bc6d/bin/utaipan-g80aRyZoba/data/4e5b94202/e7d5e303bf174fd1aca72079da31e685/FLAG1c64d8be0 [2022-11-22 01:36:52,065 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673b3293-4d9e-4395-8ba4-09061694bc6d/bin/utaipan-g80aRyZoba/data/4e5b94202/e7d5e303bf174fd1aca72079da31e685 [2022-11-22 01:36:52,068 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:36:52,070 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:36:52,071 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:36:52,072 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:36:52,075 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:36:52,076 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:36:52" (1/1) ... [2022-11-22 01:36:52,077 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79c8be7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:36:52, skipping insertion in model container [2022-11-22 01:36:52,078 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:36:52" (1/1) ... [2022-11-22 01:36:52,085 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:36:52,123 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:36:52,282 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_673b3293-4d9e-4395-8ba4-09061694bc6d/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_neg.i[1103,1116] [2022-11-22 01:36:52,442 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:36:52,460 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:36:52,474 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_673b3293-4d9e-4395-8ba4-09061694bc6d/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_neg.i[1103,1116] [2022-11-22 01:36:52,503 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:36:52,544 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:36:52,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:36:52 WrapperNode [2022-11-22 01:36:52,545 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:36:52,546 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:36:52,547 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:36:52,547 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:36:52,554 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:36:52" (1/1) ... [2022-11-22 01:36:52,570 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:36:52" (1/1) ... [2022-11-22 01:36:52,590 INFO L138 Inliner]: procedures = 166, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 50 [2022-11-22 01:36:52,591 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:36:52,592 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:36:52,608 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:36:52,608 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:36:52,617 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:36:52" (1/1) ... [2022-11-22 01:36:52,617 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:36:52" (1/1) ... [2022-11-22 01:36:52,620 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:36:52" (1/1) ... [2022-11-22 01:36:52,621 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:36:52" (1/1) ... [2022-11-22 01:36:52,627 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:36:52" (1/1) ... [2022-11-22 01:36:52,629 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:36:52" (1/1) ... [2022-11-22 01:36:52,631 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:36:52" (1/1) ... [2022-11-22 01:36:52,633 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:36:52" (1/1) ... [2022-11-22 01:36:52,635 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:36:52,636 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:36:52,637 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:36:52,637 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:36:52,638 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:36:52" (1/1) ... [2022-11-22 01:36:52,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:36:52,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673b3293-4d9e-4395-8ba4-09061694bc6d/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:36:52,676 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673b3293-4d9e-4395-8ba4-09061694bc6d/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:36:52,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673b3293-4d9e-4395-8ba4-09061694bc6d/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:36:52,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-22 01:36:52,737 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-22 01:36:52,737 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:36:52,738 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:36:52,738 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-22 01:36:52,738 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-22 01:36:52,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:36:52,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-22 01:36:52,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-22 01:36:52,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-22 01:36:52,739 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:36:52,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:36:52,741 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-22 01:36:52,921 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:36:52,923 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:36:53,183 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:36:53,190 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:36:53,190 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-22 01:36:53,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:36:53 BoogieIcfgContainer [2022-11-22 01:36:53,192 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:36:53,195 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:36:53,195 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:36:53,198 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:36:53,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:36:52" (1/3) ... [2022-11-22 01:36:53,199 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c636bbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:36:53, skipping insertion in model container [2022-11-22 01:36:53,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:36:52" (2/3) ... [2022-11-22 01:36:53,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c636bbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:36:53, skipping insertion in model container [2022-11-22 01:36:53,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:36:53" (3/3) ... [2022-11-22 01:36:53,201 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_19-publish-precision_unknown_1_neg.i [2022-11-22 01:36:53,219 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:36:53,219 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-22 01:36:53,219 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-22 01:36:53,279 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-22 01:36:53,316 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-22 01:36:53,334 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 80 transitions, 168 flow [2022-11-22 01:36:53,341 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 83 places, 80 transitions, 168 flow [2022-11-22 01:36:53,348 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 83 places, 80 transitions, 168 flow [2022-11-22 01:36:53,392 INFO L130 PetriNetUnfolder]: 1/79 cut-off events. [2022-11-22 01:36:53,393 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-22 01:36:53,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 79 events. 1/79 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 49 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 32. Up to 2 conditions per place. [2022-11-22 01:36:53,399 INFO L119 LiptonReduction]: Number of co-enabled transitions 504 [2022-11-22 01:37:00,457 INFO L134 LiptonReduction]: Checked pairs total: 1592 [2022-11-22 01:37:00,458 INFO L136 LiptonReduction]: Total number of compositions: 75 [2022-11-22 01:37:00,468 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 26 places, 22 transitions, 52 flow [2022-11-22 01:37:00,495 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 69 states, 63 states have (on average 1.8412698412698412) internal successors, (116), 68 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:37:00,522 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:37:00,533 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;@32a4cbc6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:37:00,534 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-22 01:37:00,537 INFO L276 IsEmpty]: Start isEmpty. Operand has 69 states, 63 states have (on average 1.8412698412698412) internal successors, (116), 68 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:37:00,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-22 01:37:00,543 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:37:00,545 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-22 01:37:00,546 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2022-11-22 01:37:00,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:37:00,557 INFO L85 PathProgramCache]: Analyzing trace with hash 285, now seen corresponding path program 1 times [2022-11-22 01:37:00,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:37:00,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [843287100] [2022-11-22 01:37:00,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:37:00,577 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:37:00,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673b3293-4d9e-4395-8ba4-09061694bc6d/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:37:00,583 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673b3293-4d9e-4395-8ba4-09061694bc6d/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 01:37:00,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673b3293-4d9e-4395-8ba4-09061694bc6d/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-22 01:37:00,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:37:00,691 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-22 01:37:00,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:37:00,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:37:00,707 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:37:00,711 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:37:00,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [843287100] [2022-11-22 01:37:00,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [843287100] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:37:00,712 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:37:00,713 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-22 01:37:00,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599066196] [2022-11-22 01:37:00,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:37:00,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-22 01:37:00,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:37:00,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-22 01:37:00,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-22 01:37:00,766 INFO L87 Difference]: Start difference. First operand has 69 states, 63 states have (on average 1.8412698412698412) internal successors, (116), 68 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:37:00,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:37:00,843 INFO L93 Difference]: Finished difference Result 67 states and 114 transitions. [2022-11-22 01:37:00,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-22 01:37:00,846 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-11-22 01:37:00,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:37:00,856 INFO L225 Difference]: With dead ends: 67 [2022-11-22 01:37:00,856 INFO L226 Difference]: Without dead ends: 67 [2022-11-22 01:37:00,857 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-22 01:37:00,861 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:37:00,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:37:00,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-11-22 01:37:00,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2022-11-22 01:37:00,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 63 states have (on average 1.8095238095238095) internal successors, (114), 66 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:37:00,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 114 transitions. [2022-11-22 01:37:00,965 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 114 transitions. Word has length 1 [2022-11-22 01:37:00,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:37:00,966 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 114 transitions. [2022-11-22 01:37:00,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:37:00,966 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 114 transitions. [2022-11-22 01:37:00,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-22 01:37:00,967 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:37:00,967 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-22 01:37:01,007 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673b3293-4d9e-4395-8ba4-09061694bc6d/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-22 01:37:01,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673b3293-4d9e-4395-8ba4-09061694bc6d/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:37:01,168 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2022-11-22 01:37:01,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:37:01,169 INFO L85 PathProgramCache]: Analyzing trace with hash 8730618, now seen corresponding path program 1 times [2022-11-22 01:37:01,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:37:01,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1642931641] [2022-11-22 01:37:01,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:37:01,170 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:37:01,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673b3293-4d9e-4395-8ba4-09061694bc6d/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:37:01,172 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673b3293-4d9e-4395-8ba4-09061694bc6d/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 01:37:01,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673b3293-4d9e-4395-8ba4-09061694bc6d/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-22 01:37:01,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 01:37:01,256 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-22 01:37:01,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 01:37:01,320 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-22 01:37:01,321 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-22 01:37:01,324 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (6 of 7 remaining) [2022-11-22 01:37:01,332 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-22 01:37:01,334 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-22 01:37:01,335 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-22 01:37:01,336 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-22 01:37:01,336 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-22 01:37:01,336 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 7 remaining) [2022-11-22 01:37:01,350 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673b3293-4d9e-4395-8ba4-09061694bc6d/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-22 01:37:01,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673b3293-4d9e-4395-8ba4-09061694bc6d/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:37:01,541 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-22 01:37:01,546 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-22 01:37:01,546 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 01:37:01,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:37:01 BasicIcfg [2022-11-22 01:37:01,575 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 01:37:01,576 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 01:37:01,576 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 01:37:01,576 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 01:37:01,577 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:36:53" (3/4) ... [2022-11-22 01:37:01,580 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-22 01:37:01,581 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 01:37:01,582 INFO L158 Benchmark]: Toolchain (without parser) took 9511.67ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 66.6MB in the beginning and 73.0MB in the end (delta: -6.4MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. [2022-11-22 01:37:01,583 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 69.2MB. Free memory was 47.8MB in the beginning and 47.7MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:37:01,583 INFO L158 Benchmark]: CACSL2BoogieTranslator took 474.38ms. Allocated memory is still 90.2MB. Free memory was 66.4MB in the beginning and 46.5MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-22 01:37:01,584 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.75ms. Allocated memory is still 90.2MB. Free memory was 46.2MB in the beginning and 44.4MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:37:01,587 INFO L158 Benchmark]: Boogie Preprocessor took 43.94ms. Allocated memory is still 90.2MB. Free memory was 44.4MB in the beginning and 68.6MB in the end (delta: -24.2MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. [2022-11-22 01:37:01,592 INFO L158 Benchmark]: RCFGBuilder took 556.16ms. Allocated memory is still 90.2MB. Free memory was 68.6MB in the beginning and 53.5MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-22 01:37:01,593 INFO L158 Benchmark]: TraceAbstraction took 8380.29ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 52.6MB in the beginning and 73.0MB in the end (delta: -20.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:37:01,595 INFO L158 Benchmark]: Witness Printer took 5.04ms. Allocated memory is still 109.1MB. Free memory is still 73.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:37:01,598 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 69.2MB. Free memory was 47.8MB in the beginning and 47.7MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 474.38ms. Allocated memory is still 90.2MB. Free memory was 66.4MB in the beginning and 46.5MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.75ms. Allocated memory is still 90.2MB. Free memory was 46.2MB in the beginning and 44.4MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 43.94ms. Allocated memory is still 90.2MB. Free memory was 44.4MB in the beginning and 68.6MB in the end (delta: -24.2MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. * RCFGBuilder took 556.16ms. Allocated memory is still 90.2MB. Free memory was 68.6MB in the beginning and 53.5MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 8380.29ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 52.6MB in the beginning and 73.0MB in the end (delta: -20.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.04ms. Allocated memory is still 109.1MB. Free memory is still 73.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.1s, 83 PlacesBefore, 26 PlacesAfterwards, 80 TransitionsBefore, 22 TransitionsAfterwards, 504 CoEnabledTransitionPairs, 6 FixpointIterations, 52 TrivialSequentialCompositions, 20 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 75 TotalNumberOfCompositions, 1592 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1006, independent: 856, independent conditional: 0, independent unconditional: 856, dependent: 150, dependent conditional: 0, dependent unconditional: 150, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 464, independent: 421, independent conditional: 0, independent unconditional: 421, dependent: 43, dependent conditional: 0, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 464, independent: 394, independent conditional: 0, independent unconditional: 394, dependent: 70, dependent conditional: 0, dependent unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 70, independent: 27, independent conditional: 0, independent unconditional: 27, dependent: 43, dependent conditional: 0, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 313, independent: 113, independent conditional: 0, independent unconditional: 113, dependent: 200, dependent conditional: 0, dependent unconditional: 200, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1006, independent: 435, independent conditional: 0, independent unconditional: 435, dependent: 107, dependent conditional: 0, dependent unconditional: 107, unknown: 464, unknown conditional: 0, unknown unconditional: 464] , Statistics on independence cache: Total cache size (in pairs): 80, Positive cache size: 63, Positive conditional cache size: 0, Positive unconditional cache size: 63, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17, 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: [L681] 0 int glob1 = 0; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L696] 0 pthread_t id; [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, glob1=0, id={7:0}, mutex1={3:0}, mutex2={4:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=0] [L699] CALL 0 __VERIFIER_assert(!(glob1 == 0)) [L19] COND TRUE 0 !(cond) [L19] 0 reach_error() VAL [\old(cond)=0, arg={0:0}, cond=0, glob1=0, mutex1={3:0}, mutex2={4:0}] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 697]: 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, 96 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 8.2s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14 IncrementalHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 4 mSDtfsCounter, 14 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=69occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 3 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-22 01:37:01,628 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673b3293-4d9e-4395-8ba4-09061694bc6d/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample